DE102015118293A1 - Photoluminescent vehicle graphics - Google Patents

Abstract

A lighting device for a vehicle is disclosed. The lighting device includes a garnish portion attached to a surface that includes a first photoluminescent portion and at least one light source. The light source may be configured to transmit a first emission at a first wavelength. The first emission may be configured to excite the first photoluminescent portion in a backlight configuration. The trimming portion is configured to mask the first photoluminescent portion from external light sources to prevent excitation of the first photoluminescent portion in the presence of external light sources.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of US Patent Application No. 14 / 502,039, filed September 30, 2014, and entitled "PHOTOLUMINESCENT VEHICLE GRAPHICS", which is a continuation-in-part of US Patent Application No. 14 / 452,893, filed on December 6, 1989 On August 11, 2014, entitled "INTERIOR EXTERIOR MOVING DESIGNS," which is a continuation-in-part of US Patent Application No. 14 / 301,635, filed June 11, 2014, entitled "PHOTOLUMINESCENT VEHICLE READING LAMP", which is a continuation-in-part of this application U.S. Patent Application Serial No. 14 / 156,869, filed January 16, 2014, entitled "VEHICLE DOME LIGHTING SYSTEM WITH PHOTOLUMINESCENT STRUCTURE", which is a continuation-in-part of US Patent Application No. 14 / 086,442, filed on May 21, 2014. November 2013, entitled "VEHICLE LIGHTING SYSTEM WITH PHOTOLUMINESCENT STRUCTURE". "The above related applications are hereby incorporated by reference in their entirety.

FIELD OF THE INVENTION

The present disclosure relates generally to vehicle lighting systems, and more particularly to vehicle lighting systems using photoluminescent structures.

GENERAL PRIOR ART

Lighting made from photoluminescent materials provides a unique and attractive viewing experience. It is therefore desirable to incorporate such photoluminescent materials into sections of vehicles to provide ambient and task lighting.

BRIEF SUMMARY OF THE INVENTION

According to one aspect of the present invention, a lighting device for a vehicle is disclosed. The lighting device includes a garnish portion attached to a surface that includes a first photoluminescent portion and at least one light source. The light source may be configured to transmit a first emission at a first wavelength. The first emission may be configured to excite the first photoluminescent portion in a backlight configuration. The trimming portion is configured to mask the first photoluminescent portion from external light sources to prevent excitation of the first photoluminescent portion in the presence of external light sources.

According to another aspect of the present invention, a lighting system for a vehicle is disclosed. The lighting system includes at least one light source in communication with a control circuit and a garnish section mounted on a surface. The trimming section includes a first photoluminescent section and a cover section configured to house the light source. The control circuit is configured to selectively activate the light source to send a first emission to excite the first photoluminescent portion in a backlight configuration. The energizing of the first photoluminescent portion may illuminate the cover portion to reveal a graphic.

In yet another aspect of the present invention, a lighting system for a vehicle is disclosed. The lighting system includes at least one light source and a garnish portion attached to a surface. The trimming portion includes a first photoluminescent portion, a second photoluminescent portion, and a cover portion configured to house the light source. The light source is configured to selectively transmit a first emission to excite at least the first and / or the second photoluminescent portion.

Those skilled in the art will understand and appreciate these and other aspects, objects, and features of the present invention when examining the following specifications, claims, and appended drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawings:

is 1 a perspective view of a vehicle comprising a lighting system configured to produce a motion effect,

illustrates 2A a photoluminescent structure represented as a coating,

illustrates 2 B a photoluminescent structure, represented as a discrete particle,

illustrates 2C a plurality of photoluminescent structures represented as discrete particles and incorporated into a separate structure,

illustrates 3 a lighting system configured to convert a first light emission to a second light emission;

illustrates 4 the illumination system configured to convert a first and a second light emission into a third and a fourth light emission, respectively;

is 5 4 is a graph showing a plurality of Stockers shifts corresponding to a conversion of a first and a second light emission into a third and a fourth light emission;

is 6A a detailed view of a first light emission configured to illuminate a first photoluminescent portion of a vehicle,

is 6B a detailed view of a second light emission configured to illuminate a second photoluminescent portion of a vehicle,

is 6C a detailed view of first and second light emissions configured to illuminate a first and second photoluminescent portion of a vehicle,

is 7A a detailed view of a first photoluminescent portion and a second photoluminescent portion configured to illuminate a surface of a vehicle,

is 7B a detailed view of a first photoluminescent portion and a second photoluminescent portion configured to light a surface of a vehicle,

is 8A a side view of a vehicle comprising a lighting system that can be operated to illuminate a surface of the vehicle from a hidden light source,

is 8B a side view of a vehicle that includes an illumination system that exposes a first photoluminescent graph illuminated by a first light source,

is 8C a side view of a vehicle comprising an illumination system demonstrating a second photoluminescent graph illuminated by a second light source;

is 8D a side view of a vehicle comprising an illumination system showing a plurality of photoluminescent graphics illuminated by at least one light source,

is 9 a side view of a vehicle comprising an illumination system showing a first photoluminescent graph and a second photoluminescent graph illuminated by a plurality of light sources,

is 10A 10 is a side view of a vehicle including a lighting system configured to illuminate a trim portion of a vehicle in an unlit state;

is 10B a side view of a vehicle that includes a lighting system that is configured to illuminate a garnish portion of a vehicle in an illuminated state, and

is 11 a detailed cross-sectional view of a lighting system, which is arranged on a surface of a vehicle according to the disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

As required, detailed embodiments of the present disclosure are disclosed herein. It should be understood, however, that the disclosed embodiments are intended to be mere examples that may be embodied in various and alternative forms. The figures do not necessarily have a detailed design and certain sketches may be exaggerated or minimized to show functional overview. Specific structural and functional details disclosed herein should therefore not be construed as limiting, but only as an illustrative basis for teaching one skilled in the art to variously employ the present invention.

As used herein, the term "and / or," when used in a list of more than two elements, means that any one of the listed elements may be used alone or in any combination of two or more of the listed elements. For example, if a composition is described as containing components A, B and / or C, composition A alone, B alone, C alone, A and B combined, A and C combined, B and C combined, or A, B and C combined included.

The terms first, second, third, etc., used herein may be terms with reference to the figures for clarity provide. For example, a first portion and a second portion may be referenced in some embodiments, and in some additional embodiments, only a second portion may be referenced. Such terms may serve to demonstrate example arrangements and compositions and should not be construed as indicating a specific number of elements or essential components of any specific embodiment of the disclosure, unless clearly stated otherwise. These terms may therefore be considered to provide clarity with reference to various possible embodiments of the disclosure, which may be combined in various combinations and / or used individually to clearly reference different elements of the disclosure.

The following disclosure describes a lighting system for a vehicle configured to illuminate a first photoluminescent portion of at least one vehicle panel having a first luminescent absorption area. The first light source is configured to transmit a first light emission having a first wavelength corresponding to the first luminescent absorption region. In response to receiving the first emission, the first photoluminescent portion is configured to transmit a second emission. The second emission has a second wavelength that is different from the first wavelength in that the second wavelength is longer and sharper to the human eye. In this configuration, the illumination system provides illumination of the first photoluminescent portion from the first light source.

In some embodiments, the illumination system further includes a second light source and a second photoluminescent portion having a second luminescent absorption region. The second light source is configured to transmit a third emission having a third wavelength corresponding to the second photoluminescent portion. In response to receiving the third emission, the second photoluminescent portion is configured to transmit a fourth emission. The illumination system may be operated to generate a sensed motion effect or animation by selectively illuminating the first light source and the second light source to produce the second and fourth emissions, respectively, from the first and second photoluminescent portions.

The motion effect or animation discussed herein relates to a perceived visual effect that may result, at least in part, from the persistence of a motion phenomenon. When the first and second light sources alternate sending the first and third light emission, the first and second photoluminescent portions can selectively illuminate and transmit the second and fourth light emission. By alternating between outputting the second and fourth light emissions, the system can be operated to produce a motion effect corresponding to the spatial relationship between the first and second photoluminescent portions. The motion effect may correspond to flickering, oscillating, and / or an animated sequence configured to generate a motion pattern and / or a graphic on the vehicle.

With reference to 1 is a perspective view of a vehicle 10 that is a lighting system 12 shown configured to produce motion effect shown. The lighting system 12 includes at least one light source 14 which is configured to be a first emission 16 to send, which has a first wavelength. The lighting system 12 further includes a photoluminescent portion 18 which is configured to receive a second emission 20 to send, which has a second wavelength. The second emission 20 causes the at least one photoluminescent section 18 to have an ambient glow having a color corresponding to one or more wavelengths corresponding to the second wavelength. The at least one photoluminescent section 18 may comprise at least one photoluminescent structure responsive to receiving the first emission 16 is energized and converts the first wavelength to a second wavelength around the at least one photoluminescent portion 18 to illuminate.

The at least one photoluminescent section 18 may correspond to a plurality of photoluminescent sections. Similarly, the at least one light source 14 correspond to a plurality of light sources. In some embodiments, each of the plurality of light sources is configured to correspond to each of the photoluminescent portions to illuminate a corresponding photoluminescent portion. A first light source 22 may, for example, a first photoluminescent section 24 correspond. The first light source 22 can be configured to the first emission 16 such that the first photoluminescent section 24 is excited and the first emission 16 into a second emission 20 converts, which has a second wavelength.

In some embodiments, a second light source 26 be configured to receive a third emission 28 to send a second photoluminescent section 30 equivalent. The second light source 26 can be one of the majority of light sources in 1 is set forth as the at least one light source 14 correspond. The second photoluminescent section 30 may be one of the plurality of photoluminescent sections that are in 1 is set forth as the at least one photoluminescent portion 18 correspond. In some embodiments, the second photoluminescent portion 30 be configured to have a shape or design that includes the first photoluminescent portion 24 adds, for example, a shadow, a highlight, and / or any shape configured to produce a blurring or motion effect relative to the first photoluminescent portion 24 is offset.

To create the motion effect or the highlight, the second photoluminescent section is 30 configured to be energized and the third emission 28 in a fourth emission 32 that has a fourth wavelength to convert. Thus, the disclosure provides that the lighting system 12 can be operated to selectively the first photoluminescent section 24 and the second photoluminescent portion 30 to illuminate to create a motion animation effect. The second light source 26 and the second photoluminescent portion 30 can on the vehicle 10 similar to the at least one light source 14 and the at least one photoluminescent portion 18 to be ordered. The further discussion of the plurality of light sources and photoluminescent portions is discussed here, in particular with reference to FIGS 6A - 7B ,

With reference to the 2A - 2C is a photoluminescent structure 42 generally shown as a coating (e.g., a foil) that may be applied to each vehicle trim part, a discrete particle that may be implanted in a vehicle trim part, and a plurality of discrete particles that may be incorporated into a separate structure, which can be applied to a vehicle trim part. The photoluminescent structure 42 may correspond to the photoluminescent portions as discussed above, for example the first photoluminescent portion 24 and the second photoluminescent portion 30 , At the most basic level is the photoluminescent structure 42 an energy conversion layer 44 on, as a single layer or a multilayer, as shown by the broken lines in the 2A and 2 B shown can be provided.

The energy conversion layer 44 may comprise one or more photoluminescent materials having energy conversion elements selected from a phosphorescent or a fluorescent material. The photoluminescent materials may be formulated to convert input electromagnetic radiation into output electromagnetic radiation, which generally has a longer wavelength and expresses a color that is not characteristic of the input electromagnetic radiation. The wavelength difference between the input and output electromagnetic radiations is called the Stokes shift and serves as a principle for driving mechanisms for an energy conversion process that corresponds to a change in wavelength of light, often called down-conversion. In the various embodiments discussed herein, each of the wavelengths of light (eg, the first wavelength, etc.) corresponds to electromagnetic radiation used in the conversion process.

Each of the photoluminescent portions may have at least one photoluminescent structure 42 comprising a power conversion layer (for example, the conversion layer 44 ). The energy conversion layer 44 can be prepared by placing the photoluminescent material in a polymer matrix 50 is dispersed to form a homogeneous mixture using a variety of methods. Such methods may include preparing the energy conversion layer 44 from a formulation in a liquid carrier medium and applying the energy conversion layer 44 have on a desired flat and / or non-planar surface of a vehicle trim element. The coating energy conversion layer 44 can be applied to a vehicle trim element by painting, screen printing, spraying, slot coating, dip coating, roller coating and knife coating. In addition, the energy conversion layer 44 prepared by methods which do not use a liquid carrier medium.

For example, a solid solution (homogeneous mixture in a dry state) of one or more photoluminescent materials into a polymer matrix 50 be introduced to the energy conversion layer 44 provide. The polymer matrix 50 can be formed by extrusion, injection molding, die casting, calendering, thermoforming, etc. In cases where one or more energy conversion layers 44 can be represented as particles, the individual or multilayer energy conversion layers 44 be implanted in a vehicle trim part or a plate. When the energy conversion layer 44 has a multilayer formulation, each layer can be applied sequentially. In addition, the layers can be prepared separately and later layered together or be embossed to form an integral layer. The layers may also be extruded together to prepare an integrated multilayer energy conversion structure.

Referring again to the 2A and 2 B can the photoluminescent structure 42 optionally at least one stability layer 46 to the photoluminescent material contained in the energy conversion layer 44 contained to protect against photolytic and heat deterioration. The stability layer 46 may be configured as a separate layer that is optically associated with the energy conversion layer 44 is coupled and liable to her. The stability layer 46 can also into the energy conversion layer 44 to get integrated. The photoluminescent structure 42 Optionally also a protective layer 48 have, with the stability layer 46 is optically coupled and adhered to it, or any layer or coating to the photoluminescent structure 42 from physical and chemical damage resulting from environmental exposure.

The stability layer 46 and / or the protective layer 48 can with the energy conversion layer 44 combined to form an integrated photoluminescent structure 42 by sequential coating or printing of each layer or by sequential lamination or embossing. Alternatively, multiple layers may be combined by sequential coating, laminating, or embossing to form a substructure. The substructure may then be laminated or embossed to form the integrated photoluminescent structure 42 to build. Once formed, the photoluminescent structure can 42 be applied to a selected vehicle trim part and / or a selected plate.

In some embodiments, the photoluminescent structure 42 in a vehicle trim part as one or more discrete multi-ply particles, as in FIG 2C shown to be integrated. The photoluminescent structure 42 may also be provided as one or more discrete multi-ply particles which are dispersed in a polymer formulation which is subsequently applied to a vehicle trim part or panel as an adjoining structure. Additional information on the structure of photoluminescent structures to be used in at least one photoluminescent portion of the vehicle is disclosed in U.S. Pat U.S. Patent No. 8,232,533 issued to Kingsley et al., entitled "PHOTOLYTICALLY AND ENVIRONMENTALLY STABLE MULTILAYER STRUCTURE FOR HIGH EFFICIENCY ELECTROMAGNETIC ENERGY CONVERSION AND SUSTAINED SECONDARY EMISSION", filed July 31, 2012, which is hereby incorporated by reference in its entirety.

With reference to 3 is the lighting system 12 generally according to a pre-lit configuration 62 shown to the first emission 16 from the at least one light source 14 into the second issue 20 convert. The first issue 16 includes a first wavelength λ ₁ and the second emission 20 includes a second wavelength λ ₂ . The lighting system 12 can the photoluminescent structure 42 , which is shown as a coating, and that on a substrate 64 of the vehicle equipment part 66 is applied. The photoluminescent structure 42 can the energy conversion layer 44 and, in some embodiments, the stability layer 46 and / or protective layer 48 exhibit. In response to activating the at least one light source 14 , will be the first emission 16 from the first wavelength λ ₁ to the second emission 20 having at least the second wavelength λ ₂ , converted. The second emission 20 may include a plurality of wavelengths that are configured to significantly receive white light from the vehicle trim part 66 to send.

In various embodiments, the lighting system comprises 12 at least one energy conversion layer 44 which is configured to be the first emission 16 with the first wavelength λ ₁ in the second emission 20 having at least the second wavelength λ ₂ to convert. The at least one energy conversion layer 44 may be configured to produce a plurality of visible colors by a red emitting photoluminescent material and / or a green emitting photoluminescent material and / or a blue emitting photoluminescent material incorporated in the polymer matrix 50 is dispersed, is used. The red, green and blue emitting photoluminescent materials can be combined to produce the significantly white light for the second emission 20 to create. Further, the red, green and blue transmitting photoluminescent materials can be used in a variety of proportions and combinations to match the color of the second emission 20 to control.

Each of the photoluminescent materials may have output power, output wavelength, and peak absorption wavelengths based on a particular photochemical structure and combinations of photochemical structures present in the energy conversion layer 44 can be used vary. A strength of the second emission 20 can be changed by adjusting the wavelength of the first emission. In addition or as an alternative to red, green and blue emitting photoluminescent materials, other photoluminescent materials may be used alone and in various ways Combinations used to be the second emission 20 in a wide variety of colors. That's how the lighting system works 12 for a variety of applications to provide a desired illumination color and effect for the vehicle 10 provide.

The at least one light source 14 may refer to a plurality of light sources, including the first light source 22 and the second light source 26 , The at least one light source 14 can also be called an excitation source and can be operated to at least the first emission 16 to send. The at least one light source 14 may include any type of light source, for example, halogen lighting, fluorescent lighting, light emitting diodes (LEDs), organic LEDs (OLEDs), polymer LEDs (PLEDs), solid state lighting, or any other form of lighting configured to emit the first emission 16 issue.

With reference to 4 , is the lighting system 12 shown in a configuration comprising a plurality of photoluminescent sections 80 comprising the first photoluminescent section 24 and the second photoluminescent portion 30 exhibit. The first photoluminescent section 24 is configured to receive the second emission 20 in response to receiving the first emission 16 from the first light source 22 to send. The second photoluminescent section 30 is configured to receive the fourth emission 32 in response to receiving the third emission 28 from the second light source 26 to send. Each of the plurality of photoluminescent sections 80 can be excited independently. The second emission 20 can be spent, for example, while the first emission 32 is inactive, and the fourth emission 32 can be issued while the second emission 20 is inactive. This selective activation of each of the photoluminescent sections 80 can be reacted by using photoluminescent materials that have non-overlapping absorption regions.

In some embodiments, the first emission 16 from the first light source 22 be configured such that the first wavelength λ ₁ a first absorption area of the first photoluminescent portion 24 equivalent. The third emission 28 from the second light source 26 may be configured such that the third wavelength λ ₃ corresponds to a second absorption area of the second photoluminescent section. The first absorption region may correspond to a light emission absorption region that is substantially different from the second absorption region. In this configuration, the first light source 22 selectively the first photoluminescent section 24 with the first issue 16 in the first absorption region, and the second light source 26 can selectively the second photoluminescent section 30 with the third emission 28 activate in the second absorption area.

With reference to 5 is an exemplary graphical representation 84 the conversion of the first issue 16 into the second issue 20 and the third issue 28 into the fourth issue 32 shown. The independent axis 86 the graphic 84 defines an absorption range in nanometers, which corresponds to the wavelengths of light, that of the photoluminescent materials and corresponding photoluminescent portion 24 and 30 is absorbed. The dependent axis 88 sets the emission fluorescence percentage of the photoluminescent regions as a function of the emission absorption. Each of the emissions 20 and 32 from the photoluminescent sections 24 and 30 is configured to output light having one or more wavelengths corresponding to the specific reacted photoluminescent materials.

In this example, the graph sets 84 the first absorption area 90 and the second absorption area 92 and each of the corresponding light emissions (for example, the second emission 20 and the fourth emission 32 ). The first absorption area 90 corresponds to longer wavelengths of light than the second absorption range 92 , In this way, the first photoluminescent section 24 independent of the second photoluminescent section 30 be illuminated. The absorption areas and resulting emissions may be due to particular photoluminescent materials present in each of the photoluminescent sections 24 and 30 be used, be configured. Different combinations of photoluminescent materials can provide a wide range of colors and combinations of wavelengths to produce the motion effect.

The term absorption region as used herein defines a range of wavelengths that excite a photoluminescent portion or a photoluminescent structure and cause a photoluminescent material to be energized. In response to the excitation, the photoluminescent portion emits an emission having at least one wavelength of light at least partially outside the absorption range. In various embodiments, the absorption range of the photoluminescent materials discussed herein may vary. Additionally, the transmission of light in the form of transmitted fluorescence may be selected based on the material properties of the photoluminescent structures discussed herein.

With reference to the 4 and 5 an example of a particular combination of photoluminescent materials and light sources is set forth. The first absorption area 90 may correspond to a range of wavelengths in the blue and / or near-UV region of light having wavelengths of about 390 to 450 nm. The second absorption area 92 may correspond to a substantially non-overlapping range of wavelengths in the UV and / or blue region of light having wavelengths of about 250 to 410 nm. The first issue 16 may be about 470 nm configured to the first photoluminescent section 24 to induce the second emission 20 output at about 525 nm. The third emission 28 may be about 370 nm configured to the second photoluminescent section 30 to induce the fourth emission 32 output at about 645 nm. Such is the second emission 20 and the fourth emission 32 selectively through each of the light sources 22 . 26 are energized to independently output a substantially green-colored light and a substantially orange-red colored light, respectively.

In general, the photoluminescent materials of the first photoluminescent section 24 and the second photoluminescent portion 30 in different proportions, types, layers, etc., to produce a variety of colors for each of the luminescent emissions. Although particular materials and structures of photoluminescent materials are discussed herein, different materials may be used without departing from the spirit of the disclosure. In some embodiments, the photoluminescent portion is 24 configured to the first absorption area 90 which is substantially larger than the second absorption area 92 , In addition, the second wavelength λ _{2 of} the second emission 20 be configured to be a substantially shorter wavelength or a range of wavelengths than the fourth wavelength λ _{4 of} the fourth emission 32 issue.

In some embodiments, the first photoluminescent portion 24 comprise an organic fluorescent dye configured to be the first emission 16 into the second issue 20 convert. The first photoluminescent material may comprise, for example, a photoluminescent structure of rylenes, xanthenes, porphyrins, phthalocyanines, or other materials suitable for a particular Stokes shift defined by absorption range and emission fluorescence. The first photoluminescent section 24 and the corresponding material may be configured to have a shorter Stokes shift than the second photoluminescent portion. Thus, any of the photoluminescent portions 24 and 30 regardless of the light sources 22 and 26 be lit to output different light colors.

The second photoluminescent section 30 can be a photoluminescent structure 42 which is configured to produce a longer Stokes shift than the first photoluminescent section 24 , The second photoluminescent portion may comprise an organic or inorganic material configured to surround the second absorption region 92 and to have a desired output wavelength or color. In an exemplary embodiment, the photoluminescent structure 42 of the second photoluminescent portion 30 an inorganic luminescent material selected from the group of phosphors. In particular, the inorganic luminescent material can be selected from the group of Ce-doped garnets, such as YAG / Ce. This configuration may involve a second Stokes shift of the second photoluminescent section 30 which is longer than a first Stokes shift of the first photoluminescent portion 24 ,

The first issue 16 and the third emission 28 of the light sources are shown with wavelengths in the blue spectral color range and shorter wavelengths (UV wavelengths). Such wavelengths can be used as excitation sources for the photoluminescent sections and provide near imperceptible light sources because these wavelengths have limited visual acuity in the visible spectrum of the human eye. By using shorter wavelengths for the excitation sources (for example, the first emission 16 and the third emission 28 ), the lighting system can 12 a visual effect of the light emerging from the photoluminescent sections 24 and 30 comes, create. Further, in this configuration, light from the photoluminescent structure becomes 42 (For example, the first photoluminescent section 24 , the second photoluminescent section 30 ) of locations of the vehicle 10 that are inaccessible or expensive to add conventional light sources that require electrical connections.

In order to achieve the various colors and combinations of photoluminescent materials described herein, the lighting system can 12 use any form of photoluminescent materials, for example, phospholuminescent materials, organic and inorganic dyes, etc. For additional information related to the preparation and use of photoluminescent materials to achieve different emissions, see U.S. Patent No. 8,207,511 issued to Bortz et al., entitled "PHOTOLUMINESCENT FIBERS, COMPOSITIONS AND FABRICS MADE THEREFROM", filed June 26, 2012, U.S. Patent No. 8,247,761 issued to Agrawal et al., entitled "PHOTOLUMINESCENT MARKINGS WITH FUNCTIONAL OVERLAYERS", filed August 21, 2012, U.S. Patent No. 8,519,359 B2 issued to Kingsley et al., entitled "PHOTOLYTICALLY AND ENVIRONMENTALLY STABLE MULTILAYER STRUCTURE FOR HIGH EFFICIENCY ELECTROMAGNETIC ENERGY CONVERSION AND SUSTAINED SECONDARY EMISSION", filed Aug. 27, 2013, U.S. Patent No. 8,664,624 B2 issued to Kingsley et al., entitled "ILLUMINATION DELIVERY SYSTEM FOR GENERATING SUSTAINED SECONDARY EMISSION" filed Mar. 4, 2014, US Patent Publication No. 2012/0183677 issued to Agrawal et al., entitled PHOTOLUMINESCENT COMPOSITIONS, METHODS OF MANUFACTURE AND NOVEL USES, filed Jul. 19, 2012, US Patent Publication No. 2014/0 065 442 A1 issued to Kingsley et al., entitled "PHOTOLUMINESCENT OBJECTS" filed Mar. 6, 2014 and US Patent Publication No. 2014/0103258 A1 issued to Agrawal et al., entitled "CHROMIC LUMINESCENT COMPOSITIONS AND TEXTILES," filed Apr. 17, 2014, all of which are incorporated herein by reference in their entirety.

With reference to the 6A - 6C are detailed views of the first photoluminescent section 24 and the second photoluminescent portion 30 showing a motion effect and / or combined highlight illumination according to the disclosure. As discussed here, the lighting system can 12 be operated to selectively the first photoluminescent section 24 to illuminate by the first emission 16 from the first light source 22 is sent. The lighting system 12 is further operable to selectively the second photoluminescent portion 30 by issuing the third issue 28 from the second light source 26 to illuminate. Each of the light sources 22 and 26 may be selectively controlled by one or more lighting control devices configured to the first and second light sources 22 and 26 to be activated.

The light sources 22 and 26 can be combined or intermittently activated to create a visual effect, such as flickering, swaying, animated motion, etc. When activated in combination, as in 6C shown, represents the combination of the second emission 20 and the fourth issue 32 the simultaneous output of a first light color 100 , which corresponds to the second wavelength λ ₂ , and the second light color 102 , which corresponds to the fourth wavelength λ ₄ , ready. As in 5 For example, the second wavelength λ ₂ and the fourth wavelength λ _{4 may} each correspond to one or more wavelengths combined to form an average or perceived light color. The first color 100 and the second color 102 may correspond to different perceived colors or hues that are selectively output to create a motion effect.

With reference to the 7A and 7B are detailed views of a first photoluminescent section 112 and a second photoluminescent portion 114 shown exhibiting a fading or moving lighting effect that can be configured to produce a plurality of light colors. In this example, each of the photoluminescent portions 112 and 114 similar to the first photoluminescent section 24 and the second photoluminescent portion 30 in that the first photoluminescent portion is mainly in response to the first emission 16 from the first light source 22 is illuminated, and the second photoluminescent portion mainly in response to the third emission 28 from the second light source 26 is illuminated. In this configuration, the first light source 22 and the second light source 26 be configured to generate a moving, fading and / or pulsating illumination effect by the strength and the directional focus of the first light source 22 and the second light source 26 to be controlled.

Each of the photoluminescent sections 112 and 114 forms a selectively illuminated section as shown 116 which may correspond to a coating applied to a surface 118 of the vehicle 10 is applied, and / or a photoluminescent material, in a paint and / or a coating applied to the surface 118 is applied, dispersed. For clarity, the selectively illuminated section 116 shown as a simple trapezoidal shape, the selectively illuminated section 116 however, may be of any shape, design, emphasis, and / or combination thereof. The first photoluminescent section 112 may correspond to a first shape or a first design, and the second photoluminescent portion 114 may correspond to a second shape or a second design, each having different dimensions and / or proportions. The first photoluminescent section 112 can also use the second photoluminescent section 114 within the selectively illuminated section 116 partially or completely overlap.

As in the 7A and 7B is the first photoluminescent section 112 as a first pattern of lines extending diagonally from the upper left boundary of the selectively illuminated section 116 down to the lower right boundary of the selectively illuminated section 116 extend. The second photoluminescent section 114 is presented as a second pattern of lines that are diagonally from the lower left border of the selectively illuminated section 116 to the upper right border of the selectively illuminated section 116 extend. For clarity, each of the photoluminescent sections 112 and 114 as being common to the boundaries of the selectively lit section 116 set forth. However, each of the photoluminescent portions may be attached to any portion of the surface 118 or any other surface of the vehicle 10 be applied to the light sources 22 and 26 can be directed.

With reference to 7A is the second light source 26 as a second plurality of lighting devices 120 shown. The lighting system 12 can be operated to a second light gradient or a second light pattern 122a to generate that as the third emission 28 is sent as indicated by the length of each of the arrows, which is the third emission 28 denote, set forth. The light pattern 122a accordingly, a lit area 124a of the second photoluminescent portion 114 be energized to a fourth emission 126 to send. The first light source 22 includes a first plurality of illumination devices 130 and may also be operated to provide a first light gradient or a first light pattern 132a to generate that as the first emission 16 is sent as of the length of each of the arrows that the first emission 16 denote, set forth. The light pattern 132a accordingly, a lit area 134a of the first photoluminescent section 112 excited to receive a second emission 136 to send. In this configuration, each of the light sources can 22 and 26 and their respective lighting devices 130 and 120 be operated to selectively different patterns and sections of each of the photoluminescent sections 112 and 114 to illuminate.

With reference to 7B can the lighting system 12 operated to a first light gradient or a first light pattern 132b to generate that as the first emission 16 is sent as of the length of each of the arrows that the first emission 16 denote, set forth. The light pattern 132b accordingly, a lit area 134b of the first photoluminescent section 112 excited to the second emission 136 to send. The second light source 26 includes the second plurality of lighting devices 120 and may also be operated to the second light gradient or the second light pattern 122b to generate that as the third emission 28 is sent. The light pattern 122b accordingly, a lit area 124b of the second photoluminescent portion 114 excited to the fourth emission 126 to send.

The different illumination emissions and corresponding patterns produced by the first plurality of illumination devices 130 and the second plurality of lighting devices 120 can be configured to different extents, sections and patterns of photoluminescent emissions from the surface 118 to illuminate. The photoluminescent emissions are selectively removed from each of the lighting devices 130 and 120 by exciting the photoluminescent materials of the first photoluminescent section 112 and the second photoluminescent portion 114 generated. The different patterns of light coming from the photoluminescent sections 130 and 120 can be transmitted by illuminance and selective illumination of each lighting device of the lighting devices 130 and 120 to be controlled. In this configuration, the lighting system 12 be operated to different light patterns and lighting effects on the surface 118 of the vehicle 10 to create. In some embodiments, the lighting system 12 be operated to produce fading, movement, pulsation and different additional light patterns, by selectively selecting the second emission 136 and the fourth emission 126 in response to activating the first plurality of lighting devices 130 and the second plurality of lighting devices 120 is activated.

As discussed herein, the first photoluminescent section 112 and the second photoluminescent portion 114 each corresponding to a first color and a second color. Each of the photoluminescent sections 112 and 114 can be configured to have a first absorption area 90 and a second absorption area 92 as with reference to 5 to have discussed. In general, the first absorption region and the second absorption region may be substantially different regions or partially overlapping regions of light wavelengths, each from the first light source 22 and the second light source 26 be sent, correspond. In the example in which the first and second absorption regions correspond to substantially different wavelengths of light, the first photoluminescent section may 112 and the second photoluminescent portion 124 independently by their respective light sources 22 and 26 be excited. In the example in which the first absorption region and the second absorption region partially overlap each other, the first photoluminescent section may 112 and the second photoluminescent portion 124 partly through each of the light sources 22 and 26 are excited to vary the intensity and a blending effect of the first photoluminescent section 112 and the second photoluminescent portion 114 to create.

The first light source 22 For example, the first photoluminescent section 112 illuminate with an efficiency of about 90 percent and also the second photoluminescent section 114 illuminate with an efficiency of about 40 percent. The efficiency of each of the light sources 22 and 26 for illuminating the photoluminescent sections 112 and 114 can be controlled by selecting light sources that transmit desired wavelengths of light. The desired wavelengths of light may correspond to different portions of an absorption region of a particular photoluminescent material or a combination of photoluminescent materials. In this configuration, the first light source 22 operated to match the color of the first photoluminescent section 112 is sent with the second color coming from the second photoluminescent section 114 is sent to mix. Similarly, the second light source 26 operated to the second color coming from the second photoluminescent section 114 is transmitted with that of the first photoluminescent section 112 to mix sent. By varying the strengths of each lighting device of the plurality of lighting devices 130 and 120 For example, the lighting system may be operated to produce a variety of light colors, light patterns, motion effects, and combinations thereof.

In some embodiments, the first photoluminescent portion 112 further configured to receive a plurality of light colors from a first plurality of colored sections 140 to send. The first photoluminescent section 112 can, for example, a first colored section 142 , a second colored section 144 and a third colored section 146 include. Each of the colored sections 142 . 144 . 146 may be configured to operate at different levels of efficiency in response to the first emission 16 from the first light source 22 to get excited. Furthermore, the second photoluminescent section 114 configured to receive a plurality of light colors from a second plurality of colored sections 150 to send. The second photoluminescent section 114 can have a fourth colored section 152 , a fifth colored section 154 and a sixth colored section 156 include. Each of the colored sections 152 . 154 . 156 may be configured to operate at different levels of efficiency in response to the second emission 28 from the second light source 26 to get excited.

Although the colored sections 142 . 144 . 146 . 152 . 154 and 156 as overlapping portions of the first photoluminescent portion 112 and the second photoluminescent portion 114 each of the colored portions may be attached to separate and / or partially overlapping portions of the surface 118 be applied. Such is the lighting system 12 Lighting different patterns, colors, themes, lighting effects, and motion effects. The lighting system 12 can be operated to the strength of each colored section 142 . 144 . 146 . 152 . 154 and 156 with different levels and strengths, by controlling each lighting device of the plurality of lighting devices 130 . 120 is controlled. As set forth by the various examples and configurations described herein, the lighting system provides an adaptive lighting system that can be operated to provide a variety of lighting effects. The lighting system 12 also has the additional advantage that it can be operated to produce different lighting effects while maintaining low implementation costs.

With reference to the 8A . 8B . 8C and 8D can be a lighting system 178 be configured to a surface 180 of a vehicle 182 to illuminate. The lighting system 178 can have different features and elements with reference to the lighting system 12 be discussed, embody. Like reference numerals may therefore be used to refer to different elements of the lighting system 178 to describe. The lighting system 178 can be configured to get a first graphic 184 and a second graphic 186 to illuminate. The first graphic 184 and the second graphic 186 may be configured to be selective in response to receiving an emission from at least one light source 188 to illuminate. The lighting system 178 may also be configured to interact with ambient lighting conditions (time of day, nighttime, artificial lighting, etc.) to provide different visual effects, by selectively illuminating the first graph 184 and the second graphic 186 are displayed.

The term graphic as used herein may refer to any form of sign, logo, mark, shape and any other design. The first graphic and the second graphic and any other graphics, designs, logos and / or characters may therefore be interchangeable, combined and / or blended to provide a desired look for the first graphic 184 and the second graphic 186 to achieve. The first graphic 184 is shown as a logo or group of characters, for example, and the second graphic is shown as a shape. In different embodiments, the first graph 184 and the second graphic 186 however any combination of signs, designs, logos, shapes and / or markings placed on a surface of a vehicle.

The at least one light source 188 can on the surface 180 of the vehicle 182 can be arranged, and in some embodiments, behind a plate or a stocking strip 190 be hidden. In this configuration, the lighting system 12 be operable to light from the at least one light source 180 to project what may result in the first graph 184 and the second graphic 186 be illuminated. In some embodiments, the at least one light source 188 the first light source 22 and the second light source 26 include. The first light source 22 and the second light source 26 each may be configured in an array of transmitters extending longitudinally along the surface 180 of the vehicle 122 extend. Similar to the lighting system 12 , may be the first light source 22 configured to be a first emission 16 to send, and the second light source 26 can be configured to receive a third emission 28 to send. For clarity, the first light source 22 in the 8B and 9 only by the reference numeral 22 indicated, and the second light source 26 is in the 8C and 9 only by the reference numeral 26 specified. Corresponding reference symbols for the first emission 16 and the second emission 28 can each also in the 8B and 9 and the 8C and 9 be specified.

8A sets the lighting system 178 in a first state 270 which is the first light source 22 and the second light source 26 as inactive, as shown 8A the appearance of the surface 180 in a daytime or nighttime lighting state. The surface 180 of the vehicle 182 is as a modeled or textured appearance in the form of a mask 192 shown, which corresponds to an area of the at least one light source 188 to be illuminated. The surface 180 can also be an area of the vehicle 182 match in which the first graph 184 and the second graphic 186 can be incorporated. In some embodiments, the surface may 180 painted and / or coated with an enamel and / or paint configured to provide the textured appearance.

In some embodiments, the mask 192 serve to light emissions, the first graph 184 and the second graphic 186 which result from ambient lighting conditions, decrease or hide. The first graphic 184 and the second graphic 186 For example, at least one photoluminescent material may be included that is energized in response to receiving at least one wavelength of light from an ambient illumination source, for example, the sun. The first graphic 184 and the second graphic 186 may therefore be at least partially visible when the first light source 22 and the second light source 26 are inactive. By applying the mask 192 to the surface 180 , can the first graphic 184 and the second graphic 186 essentially hidden, even when exposed to ambient lighting conditions.

In some embodiments, the mask 192 that has the sculpted or textured look to the entire vehicle 182 be applied to provide a substantially uniformly painted appearance. Similarly, the paint of the vehicle 182 similar to the mask 192 be textured. The mask 192 may also be configured to appear as a paint highlight, for example a racing strip. That's how the first graphic works 184 and the second graphic 186 be hidden in a variety of ways when the surface 180 Is exposed to environmental lighting conditions.

Even if the mask 192 as to reduce and / or hide the first graphic 184 and the second graphic 186 when exposed to ambient lighting conditions, the mask may 192 not used in some embodiments. The luminosity of the first graphic 184 and the second graphic 186 In response to ambient lighting conditions can largely depend on a combination of a paint color of the vehicle 182 , a concentration and / or strength of a photoluminescent material shown in the graphics 184 and 186 is used, and one or more colors of photoluminescent materials used in the graphics 184 and 186 be used, sent, depend. For example, sunlight can be the first graphic 184 and the second graphic 186 cause an excitation emission similar to the first and / or the third emission 16 and 28 is supplied. If the concentration and / or strength of the photoluminescent materials used to generate emissions from the first graph 184 and the second graphic 186 is limited, the broad spectrum of sunlight can partially or completely contain any substantially visible evidence that the first graph 184 and the second graphic 186 are illuminated, washed out and / or concealed. The mask 192 may therefore be used in some embodiments and not desirable in others.

With reference to the 8B . 8C and 8D is the lighting system 178 each in a second state 194 a third state 196 and a fourth state 198 illustrated. A resulting exemplary appearance of the surface 180 as in the 8B . 8C and 8D may correspond to an ambient lighting condition, which is the first wavelength and the third wavelength, that of the first emission 16 and the third issue 28 match, does not contain. The illumination state may therefore not correspond to one or more excitation emissions configured to the photoluminescent materials of the first graphic 184 and the second graphic 186 correspond, excite. The ambient lighting state may correspond to, for example, a nighttime lighting state or an artificial lighting state, such as a lighting state of a vehicle showroom.

In addition, the form 8B . 8C and 8D the mask 192 in a less visible and lighter texture than in 8A from. This picture of the mask 192 FIG. 4 may be an exemplary illustration of one embodiment of the lighting system. FIG 178 in which the mask 192 is deployed. The less visible and lighter texture of the mask 192 may serve to demonstrate that during artificial and night lighting conditions there is a contrast between the mask 192 and other surfaces of the vehicle 182 may be less visible. It can also be repeated here that the mask 192 possibly not in any embodiments of the lighting system 178 is built in or can be mixed to the appearance of the other surfaces of the vehicle 182 correspond to.

8B sets the lighting system 178 This is the first light source 22 has activated such that the first emission 16 to the surface 180 from a corresponding first array of transmitters 202 is sent. The second light source 26 may be inactive in this configuration. In response to receiving the first emission 16 , may be a first photoluminescent section 204 , the first graphic 184 corresponds, be energized and a second emission 206 send. In this configuration, the first photoluminescent section 204 the first graphic 184 to a substantially higher level of illumination or brightness than the second graph 186 be illuminated. The higher illumination level of the first graphic 184 compared to the second graphic 186 in response to receiving the first emission 16 may be due to the fact that the first photoluminescent section 204 the first absorption area 90 Has.

With reference to 8C , is the lighting system 178 as with the second light source 26 activated, so that the third emission 28 to the surface 180 from a corresponding second array of transmitters 208 is sent. The first light source 22 may be inactive in this configuration. In response to receiving the third emission 28 , may be a second photoluminescent section 210 , the second graphic 186 corresponds, be energized and a fourth emission 212 send. In response to receiving the third emission 28 may be the second photoluminescent section 210 the second graphic 186 to a substantially higher level of illumination than the first graph 184 be lit up. The lighting system 178 Therefore, it may be operable to selectively select the first photoluminescent portion 204 essentially independent of the second photoluminescent portion 210 to illuminate.

As discussed herein, the first photoluminescent section 204 and the second photoluminescent portion 210 each corresponding to a first color and a second color. Each of the photoluminescent sections 204 and 210 can be configured to have a first absorption area 90 and a second absorption area 92 as with reference to 5 to have discussed. In general, the first absorption region and the second absorption region may be substantially different regions or partially overlapping regions of light wavelengths, each from the first light source 22 and the second light source 26 be sent, correspond. In the example in which the first and second absorption regions correspond to substantially different wavelengths of light, the first photoluminescent section may 204 and the second photoluminescent portion 210 independently by their respective light sources 22 and 26 be excited.

In the example in which the first absorption region and the second absorption region are partially overlapping, the first photoluminescent section may 204 and the second photoluminescent portion 210 partly through each of the light sources 22 and 26 be excited. The first wavelength of the first emission 16 For example, the second photoluminescent section 210 cause with a lower magnitude or brightness than the third wavelength of the third emission 28 to be illuminated. Similarly, the third wavelength of the third emission 28 the first photoluminescent section 204 cause with a lower magnitude or brightness than the first wavelength of the first emission 16 to be illuminated. In this configuration, each of the light sources 22 and 26 be configured to partially each of the photoluminescent sections 204 and 210 with different strengths to illuminate each of the graphics 184 and 186 to illuminate in different combinations.

With reference to 8D , is the lighting system 178 both with the first and with the second light source 22 and 26 activated shown. In this configuration, both the first emission 16 as well as the third issue 28 to the surface 180 be sent. In response to receiving the arousal emissions 16 and 28 , can have wide photoluminescent sections 204 and 210 be excited and each the second emission 206 and the fourth emission 212 send. That's how the lighting system works 178 be operable to selectively the first photoluminescent section 204 and the second photoluminescent portion 210 to selectively illuminate.

In some embodiments, the lighting system 178 be configured to selectively each light emitter of the first array of transmitters 202 and / or any arrangement of transmitters 208 to selectively illuminate. With reference to 9 , is the lighting system 178 a section of the first graphic 184 Lighting shown by a first selection of channels 222 the first arrangement of transmitters 202 , the first light source 22 corresponds, is selectively activated. A section of the second graphic 186 can also be done by selectively activating a second selection of stations 224 the second arrangement of transmitters 208 that of the second light source 26 corresponds to be illuminated. In this configuration, the lighting device 178 be operable to create a variety of visual effects by illuminating different combinations of transmitters to sections of the first graphic 184 and / or the second graphic 186 to illuminate.

As described here, a selection of stations (for example 222 and 224 ) one or more adjacent or non-adjacent transmitters of each array of transmitters 202 and 208 correspond. Some examples of visual effects caused by the lighting system 178 can be generated sequentially or arbitrarily activating each of the transmitters of each of the arrays of transmitters 202 and 208 that are strobing one or more transmitters and / or flicker different selections of the transmitters. In addition, each transmitter can be varied in strength to the strength of the first emission 16 and / or the third issue 28 to vary. Such is the lighting device 178 be operable to produce a mixed effect of the second emission 206 and the fourth issue 212 each from the first photoluminescent section 204 and the second photoluminescent portion 210 to create.

The first light source 22 For example, it can be activated with a first strength that is about 50% of a first total strength. In response, the first photoluminescent section 204 the first graphic 184 with about 50% of a maximum strength of the second emission 206 illuminate. In addition, the second light source 26 activated with a second strength, which is about 10% of a total strength. In response, the second photoluminescent portion 210 the second graphic 186 with about 10% of a maximum strength of the fourth emission 212 illuminate. That's how the lighting system works 178 be operable to the first graphic 184 and to illuminate the second graphic with different magnitudes to adjust the illumination, mix and / or in the form of the second emission 206 and / or the fourth issue 212 to project at different combinations. The lighting system 178 can be operable to increase the intensity of each transmitter of the light sources 22 and 26 by varying a magnitude and / or duty cycle of the voltage / current flowing to the light sources 22 and 26 or each individual transmitter of the first and second array of transmitters 202 and 208 to be delivered. That's how the lighting system works 178 be operable to adjust the brightness or intensity level of the light as the first emission 16 and the third emission 28 is sent to set.

In some embodiments, the lighting system 178 be further operable to selectively the light sources 22 and 26 to activate the first graph and / or the second graph with different strengths, patterns and sequences in response to at least one vehicle condition. A lighting control device of the lighting system may be in communication with a vehicle control module such that the lighting control device controls the light sources 22 and 26 in response to signals originating from the vehicle control module. The signals from the vehicle control module may indicate an operating condition of the vehicle 182 identify. The lighting control device may include one or more circuits and / or processors that are operable to control the light sources 22 and 26 in response to receiving signals from the vehicle control device configured to a state of the vehicle 182 to identify, control.

For example, the lighting control device may be operable to adjust a strength or a lighting level of the light sources 22 and 26 in response to an ambient light condition, a present detection or any form of detection interface. The lighting control device may also selectively control the light sources 22 and 26 in response to a spark event, lock, gear selection, emergency brake application, etc. In some embodiments, the lighting system 178 also be configured to selectively use the light sources 22 and 26 in response to a present or proximity detection of a vehicle key or key fob and / or a signal from a remote keyless entry device.

With reference to the 10A and 10B , can be a lighting system 250 be configured to a stocking section 252 who is on the surface 180 of the vehicle 182 is arranged to illuminate. The lighting system 250 can have different features and elements with reference to the lighting system 12 be discussed, embody. Like reference numerals may therefore be used to refer to different elements of the lighting system 250 to describe. The lighting system 250 may be configured to have at least one photoluminescent section 254 in response to receiving the first emission 16 from at least one light source 256 to illuminate. In response to receiving the first emission 16 the at least one photoluminescent section 254 be excited and the stocking section 252 by illuminating light in a first color.

In some embodiments, the at least one photoluminescent portion 254 be configured to a graphic 260 detect by selectively selecting a pattern or shape of the trimming section 252 that the at least one photoluminescent section 254 corresponds, is illuminated. The term graphic as used herein may refer to any form of sign, logo, mark, shape and any other design. The graphic 260 may be filled or outlined by the at least one photoluminescent portion. In response to receiving the first emission 16 from the at least one light source 256 , the at least one photoluminescent section 254 an interior section 262 the graphic 260 or an outdoor section 264 the graphic 260 illuminate directly. The interior section 262 can be an area within an outline 266 the graphic 260 correspond, and the outer section 264 can be an area outside the outline 266 the graphic 260 correspond. The lighting system 250 may therefore be operable to the interior section 262 or the outer section 264 to shed light on the graphics 260 to be recognized.

With reference to 10A , is the lighting system 250 in a first state 270 or in an inactive state that is configured to display the graphic 260 to mask and / or conceal. At the first state 270 can the stocking section 252 be configured to have a hidden appearance that is configured to the graphic 260 to hide. The stocking section 252 may be made of at least partially translucent material intended for use on the vehicle 182 suitable, for example, a polymeric material or any corrosion resistant light transmissive material. To the graphic 260 To mask the trim panel may be colored and / or tinted to ensure that the graphics 260 essentially hidden from visual recognition in a wide variety of lighting conditions, including direct sunlight.

As with reference to 8A Sunlight or other external light sources may have a wavelength that is the first wavelength of the first emission 16 corresponds to, or any other excitation wavelength, the at least one photoluminescent section 254 can excite. In some embodiments, the coloring or tinting may be sufficient to remove the illumination from the photoluminescent portion 254 is sent to mask. As in 8A As shown, the trim portion is shaded to show a translucent smoky appearance. In some embodiments, a light-absorbing or reflective layer may also be on the trim portion 252 arranged or in the material from which the trimming section 252 is prepared to be dispersed. For example, an optical coating or a thin film may be applied to and / or dispersed in the garnish portion so that light wavelengths corresponding to excitation emissions can be prevented from the photoluminescent portion 254 to reach.

For example, an excitation emission from an external light source, such as light at the first wavelength, may be at the photoluminescent portion 254 be limited by a light-reflecting or absorbing layer to ensure that the photoluminescent material is not excited by external light sources. Some examples of optical coatings that may be used for the light-reflecting or absorbing layer may include absorptive, dichroic, and / or a variety of other light-reflecting coatings and / or filters that may be operated to attenuate passage of light wavelengths therethrough , The light-reflecting or absorbing layer may be on the garnish section 252 be approximately arranged to restrict the passage of wavelengths of less than 500 nm. In some embodiments, an outer surface of the trim portion 252 be vacuum-metallized. In some embodiments, a metallized coating may serve to provide the trim portion 252 to impart a metallic and / or chrome appearance while excitation wavelengths (eg, the first wavelength) are reflected such that the photoluminescent portion 254 in the inactive or first state 270 remains dormant. Thus, the disclosure provides a variety of embodiments to ensure that the photoluminescent portion 254 selectively from the light source 256 can be illuminated, even when exposed to external light sources.

With reference to 10B is the lighting system 250 in a second state 272 or in an active state that is configured to the graphic 254 to illuminate. By illuminating the photoluminescent section 254 In addition, the lighting system can be operated to display the graphics 260 to illuminate and / or detect. In some embodiments, the at least one photoluminescent portion 254 a first photoluminescent section 282 and a second photoluminescent portion 284 include. In such embodiments, the first photoluminescent portion 282 a first graphic 286 and the second photoluminescent section 284 can a second graphic 288 correspond. The first graphic 286 can the inner section 262 match, and the second graphic can be the outer section 264 the graphic 260 correspond. In this configuration, the light source 256 operated to the first photoluminescent section 282 and the second photoluminescent portion 284 by sending the first emission 16 to illuminate.

As discussed here, each of the photoluminescent sections 282 and 284 be configured to light each in a first color 290 and in a second color 292 to send. An emission color or luminance color of the emissions from each of the photoluminescent sections 282 and 284 can be output by using specific types and combinations of photoluminescent materials in the photoluminescent structure 42 each of the photoluminescent sections 282 and 284 to be controlled. Each of the photoluminescent sections 282 and 284 may have similar or different absorption regions, each having its energy conversion layer 44 can excite. That's how the lighting system works 250 for illuminating the first photoluminescent portion 282 in the first color 290 and the second photoluminescent portion 284 in the second color 292 by activating the light source 256 to send the first emission 16 operate.

With reference to 11 Now is a cross-sectional view of the lighting device 300 of the lighting system 250 shown. The lighting device 300 can on the surface 180 of the vehicle 182 bonded or secured by adhesive, fasteners and / or a variety of additional methods. The at least one light source 256 can be an array of light sources 302 For example, LEDs configured to emit UV or blue light at about less than 500 nm wavelength. Each transmitter of the arrangement of light sources 302 may correspond to a sidelight transmitter, for example a sidelight LED. The arrangement of the light sources 302 can with a lighting control device 304 of the vehicle 182 via a control circuit 306 communicate. The control circuit 306 may include at least one processor, control device, and / or circuitry configured to control emissions from each transmitter of the array of light sources 302 to control. The control circuit 306 can with each of the transmitter of the arrangement 302 over a circuit board 308 be in touch. In this configuration, the lighting device 300 be operated to the arrangement of light sources 302 to generate a variety of patterns and intensities from the first photoluminescent section 282 and the second photoluminescent portion 284 in a backlit configuration 310 be sent.

The stocking section 252 can a cover section 312 include that is configured to be with a base 314 connect to. The base 314 can be configured to work on the surface 180 of the vehicle 182 can be attached and can a communication port 316 include, which is arranged such that the lighting device 300 with the lighting control device 304 can be in communication. The communication port 316 may be configured to receive one or more conductors configured to provide operating power to the control circuit 306 transferred to. The communication port 316 may also provide a communication path such that the control circuit 306 with the lighting control device 304 can be in communication.

The cover section 312 includes an inner surface 318 and an outer surface 320 , In some embodiments, at least one photoluminescent portion 254 as a foil or coating on the inside surface 318 of the cover section 312 be arranged. The first photoluminescent section 282 and the second photoluminescent portion 284 can also on the inside surface 318 be arranged. As in 11 set forth, the first photoluminescent section 282 and the second photoluminescent portion 284 arranged in a pattern that is a cross section of the first graphic 286 and the second graphic 288 equivalent. Each of the photoluminescent sections 282 and 284 can be thermoformed, inserted and / or on the inside surface 318 be deposited to the first graphic 286 in the first color 290 and the second graphic in the second color 292 to build.

The light-absorbing or reflective layer 322 can on the outside surface 320 be arranged to ensure that the photoluminescent material of the photoluminescent sections (for example 282 and or 284 ) is not excited by external light sources. In some embodiments, the light absorbing layer 322 in the material of the cover portion 312 dispersed or on the inner surface 318 between the photoluminescent sections 282 and 284 be arranged such that the external light sources are prevented from the photoluminescent portions 282 and 284 to excite. Some examples of optical coatings and dispersions that may be used for the light-reflecting layer include absorptive, dichroic, and / or a variety of other light-reflecting coatings and / or filters. In some embodiments, the light-absorbing or reflective layer 322 correspond to a vapor-deposited layer on the outer surface 320 is applied. In such embodiments, the metallized layer may serve for the trim portion 252 to impart a metallic and / or chrome appearance while excitation wavelengths (eg, the first wavelength) are reflected such that the photoluminescent portion 254 in response to the activity of the light source 256 remains dormant.

In some embodiments, the first photoluminescent portion 282 and the second photoluminescent portion 284 similarly configured its like the first photoluminescent section 24 and the second photoluminescent portion 30 , The at least one light source 256 can, for example, a first light source 332 and second light source 334 include. The first light source 332 can be configured to the first emission 16 such that the first photoluminescent section 282 is excited. In response to receiving the first emission, the first photoluminescent portion 282 the first issue 16 into a second emission 20 , which has a second wavelength, convert the second light source 334 can be configured to the third emission 28 that has the third wavelength to send. In response to receiving the third emission 28 , the second photoluminescent section 284 be excited and the fourth emission 32 that has the fourth wavelength send.

Each of the photoluminescent sections 282 and 284 can be configured to have a first absorption area 90 and a second absorption area 92 as with reference to 5 to have discussed. In general, the first absorption area 90 and the second absorption area 92 essentially different regions or partially overlapping regions of light wavelengths from the first light source 332 and the second light source 334 be sent, correspond. In the example in which the first and second absorption regions correspond to substantially different wavelengths of light, the first photoluminescent section may 282 and the second photoluminescent portion 284 independently by their respective light sources 332 and 334 be excited. In the example in which the first absorption region and the second absorption region partially overlap each other, the first photoluminescent section may 282 and the second photoluminescent portion 284 partly through each of the light sources 22 and 26 are excited to vary the intensity and a blending effect of the first photoluminescent section 286 and the second photoluminescent portion 288 to create. Thus, the disclosure provides a lighting system 250 ready, which can be operated to selectively the first photoluminescent section 282 and the second photoluminescent portion 284 To illuminate, as discussed herein, a variety of lighting patterns, blends and various other lighting effects.

The control circuit 306 may include one or more circuits and / or processors that may be operated to the light sources 332 and 334 in response to receiving signals from the vehicle control device 304 to control. The signals from the vehicle control module 304 can be configured to a state of the vehicle 182 to identify. The control circuit 306 For example, it may be operable to provide a magnitude or level of illumination of the light sources 322 and 334 in response to an ambient light condition, a present detection or any form of detection interface. The control device 306 can also selectively use the light sources 332 and 334 in response to an ignition event, lock, gear selection, emergency brake application, vehicle speed, braking, flashing signal, etc. to activate. In some embodiments, the lighting system 250 also be configured to selectively control the lighting sources 332 and 334 in response to a present or proximity detection of a vehicle key or key fob and / or a signal from a remote keyless entry device. That's how the lighting system works 250 for safe operation of the lighting device 300 ensure that corresponds to a plurality of vehicle operating conditions, and different controls to ensure that the operation of the lighting system 250 the lighting requirements and restrictions on traffic routes.

The disclosure provides a lighting system 250 configured to output light from at least one photoluminescent portion of a lighting device. In some embodiments, the photoluminescent portion may detect at least one graphic on a surface of a vehicle. The various embodiments provide a plurality of photoluminescent materials that can be selectively activated to produce different lighting effects in response to activation of a plurality of light sources. The system 250 provides various benefits, including generating Visual effects to enhance the appearance of a vehicle, increase the value, and provides different security benefits by improving visibility.

It is to be understood that variations and changes may be made in the above-mentioned structure without departing from the concepts of the present invention, and further, it is to be understood that such concepts are intended to be covered by the following claims, unless expressly expressing those claims by their language Explain other.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

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• US 2014/0103258 A1 [0060]

Claims (20)

A lighting device for a vehicle, comprising: a garnish portion attached to a surface including a first photoluminescent portion, at least one light source configured to transmit a first emission at a first wavelength to excite the first photoluminescent portion in a backlight configuration, wherein the trimming portion is configured to mask the first photoluminescent portion from external light sources. The illumination device of claim 1, wherein the trimming portion is configured to mask the first photoluminescent portion such that the first photoluminescent portion is substantially visible in response to the transmission of the first emission by the at least one light source. The lighting apparatus of claim 1, wherein the light source comprises an array of edge-lit light sources configured to transmit light through the trim portion along the surface of the vehicle. The lighting apparatus according to claim 1, wherein the garnish portion comprises a cover portion and configured to fix the light source to the surface in a sealed case. The lighting apparatus of claim 1, wherein the trimming portion is configured to substantially confine light to the first wavelength transmitted to the first photoluminescent portion from external light sources corresponding to the first wavelength. The lighting apparatus of claim 1, wherein the lighting device is configured to selectively detect a hidden graphic in response to the at least one light source transmitting the first emission. The lighting apparatus of claim 6, wherein the hidden graphic corresponds to a second photoluminescent portion. The lighting apparatus according to claim 7, wherein the first photoluminescent portion and the second photoluminescent portion are disposed near an inner surface of the cover portion. A lighting system for a vehicle, comprising: at least one light source, a trim portion attached to a surface including a first photoluminescent portion and a cover portion configured to house the light source, wherein the control circuitry is configured to selectively activate the light source to transmit a first emission excite the first photoluminescent section in a backlighted configuration to reveal a graphic. The illumination system of claim 9, wherein the trimming portion is configured to mask the first photoluminescent portion of light originating from external light sources. The illumination system of claim 9, wherein the trimming portion is made of an at least partially translucent material and configured to restrict transmission of light wavelengths less than about 500 nm through the partially transparent portion. The lighting system of claim 9, wherein the at least one light source comprises an edge-lit light source configured to transmit light through the trim portion along the surface of the vehicle. The illumination system of claim 9, wherein the first photoluminescent portion is thermoformed on an inner surface of the trimming portion. The illumination system of claim 9, further comprising a second photoluminescent portion corresponding to the graphic. The lighting apparatus of claim 14, wherein the first photoluminescent portion and the second photoluminescent portion comprise photoluminescent materials configured to transmit luminance in a first color and a second color, respectively, in response to receiving the first emission. A lighting device for a vehicle, comprising: at least one light source, and a trim portion mounted on a surface including a first photoluminescent portion, a second photoluminescent portion, and a cover portion configured to house the light source, the light source being configured to selectively transmit a first emission to cause the light source first and / or the second photoluminescent section to excite. The lighting device of claim 16, wherein the at least one light source comprises a first light source configured to transmit the first emission and a second light source configured to transmit a second emission. The lighting apparatus according to claim 17, wherein the first emission corresponds to a first wavelength and the second emission corresponds to a second wavelength different from the first wavelength. The lighting apparatus of claim 18, wherein the first light source is configured to excite the first photoluminescent portion to illuminate a first graphic in a first color. The lighting apparatus of claim 19, wherein the second light source is configured to energize the second photoluminescent portion to illuminate a second graphic in a second color.

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