WO2010003302A1

WO2010003302A1 - Led light source light guide panel

Info

Publication number: WO2010003302A1
Application number: PCT/CN2009/000248
Authority: WO
Inventors: 苏国棻
Original assignee: Su Guofen
Priority date: 2008-07-11
Filing date: 2009-03-09
Publication date: 2010-01-14
Also published as: CN201246688Y

Abstract

A LED light source light guide panel comprises a light-transmitting layer (1) made of high light-transmitting material and a light-reflecting layer (2) coated on the upper surface of the light-transmitting layer (1) and combined together with the light-transmitting layer (1) tightly. The LED light source light guide panel is circular and sheet-shaped. The upper surface of the light-transmitting layer (1), the lower and upper surfaces of the light-reflecting layer (2) have parabola curved shapes respectively which are formed by rotating a parabola for 360 degrees along the axis of the LED light source light guide panel.

Description

LED light source light guide

Technical field

The utility model relates to the technical field of lighting lamps, in particular to an LED light source light guide plate. Background technique

LED is the abbreviation of English Light Emitting Diode, which is a new type of high-efficiency solid light source that emits light with weak electric energy.

In the mid-20th century, the first commercial LED light-emitting diodes were introduced to the market. After more than 50 years of experience, their performance has been continuously improved, manufacturing costs have been declining, and remarkable progress has been made. LEDs are widely used for their inherent high efficiency, long life, low loss, vibration resistance, response speed block, and small size. With the advancement of manufacturing technology, the luminous efficiency and luminous intensity of its single LED are continuously improved. With the improvement of LED performance and power enhancement, it is possible to make high-intensity lighting fixtures with single LEDs. LED products are in illumination. The application of the field has become a very influential new product.

Due to the limited structural characteristics of the product, the light-emitting surface of the LED is a semi-spherical surface of the directional light source, and the light emitted by the LED is a directional light source and a hemispherical scattered light of the angular light source, in order to make the scattered light as far as possible The technicians have done a lot of research and experimentation before illuminating to reach the illumination intensity of a wider angle and flat light source (for the same illumination distance) or the distance of illumination (for the same illumination intensity).

A "light guide plate improved structure" is disclosed in the Chinese Patent Publication No. CN200972511Y, which is incorporated in the Chinese Patent Publication No. CN200972511Y, which mainly comprises a light guide sheet made of a high light transmissive material, the light guide. The front side of the sheet is provided with a clear light transmissive layer, and a reflective layer is disposed on the back surface thereof. The reflective layer is integrally formed with the light transmissive layer, and the shape of the "light guide plate improved structure" is limited to a square shape, and the light of the illuminating light source is formed from a square shape. The side of the straight line is imported. Therefore, the lighting products manufactured therefrom are also limited by the square shape. In the actual life process, the number of lighting products in the shape of a disk is also quite large, so the market demand for the circular sheet-shaped light guide plate is also large. Utility model content

The technical problem to be solved by the utility model is that, in order to meet the urgent needs of the lighting lamp market, an LED light source light guide plate is provided, and the lighting product produced by using the LED light source light guide plate and the corresponding component is uniformly reflected after the light is introduced. It will produce a ghost image, so that the finished lamp can not only produce enough brightness, but also the light source will not be flickering, and the eyes will not have a glare, but also have the advantages of power saving and no heat.

The technical solution adopted by the utility model to solve the technical problem thereof is as follows: the LED light source light guide plate comprises a light transmissive layer made of a high light transmissive material, and the feature is: further comprising brushing the upper surface of the light transmissive layer and the The light-reflecting layer is closely combined with the light-reflecting layer, the LED light-guide plate is in the shape of a sheet, and the upper surface of the light-transmitting layer, the lower surface of the light-reflecting layer (the light-facing surface) and the upper surface are respectively parabolically guided along the LED light source. A parabolic curved shape formed by rotating the axis of the light plate by 360 degrees.

In the above technical solution, the reflective layer formed by superimposing the two or more composite materials is closely combined with the upper surface of the light transmissive layer; the bottom layer in the reflective layer may be a layer of reflective paint or other reflective The material, the painted reflective paint layer is closely combined with the upper surface of the light transmissive layer; the surface layer in the reflective layer may be a mixture layer of resin paint and glass beads, or may be other materials. The layer of the mixture of tree paint and glass beads is tightly bonded to the layer of reflective paint.

Two or more LED light sources are symmetrically arranged on the side of the circle around the circumference of the LED light guide plate with a center of symmetry; the respective LED light sources are respectively located at the focus of the corresponding parabola.

The utility model has the following beneficial effects: First, since the LED light source light guide plate has a circular sheet shape, it is suitable to be a disk-shaped illumination product, and does not increase the ineffective area, which is a square-shaped guide of the prior art. The light plate is difficult to realize; second, the upper surface of the light transmissive layer, the lower surface of the light reflecting layer and the upper surface respectively have a paraboloid of revolution, instead of the parabolic paraboloid of the prior art, that is, the parabola rotates 360 degrees along the axis of the LED light guide plate. The shape of the parabolic curved surface is formed. Two or more LED light sources are designed on the side of the light guide plate around the circumference with the center of the light guide plate as a point of symmetry. The respective LED light sources are respectively located at the focal point of the corresponding parabola, and the light of the LED light source is reflected. The layer reflects, forming a parallel beam, so that the projected light is even and bright, and no ghosting occurs; Third, the painted reflective layer is closely combined with the light-transmitting layer. Together, the light attenuation is made smaller, and the structure of the light guide plate of the LED light source becomes more suitable, the production and assembly are convenient, and the production cost is low; Fourth, the LED light source light guide plate can be made into an ultra-thin with the corresponding components. The illuminating lamp has good light transmittance, long service life, stable light source will not flicker, and will not make the eyes feel glare, and has the advantages of power saving and non-heating. It is easy to promote and apply, and the light guide plate is not discarded. It will pollute the environment and meet the requirements of energy conservation and environmental protection. DRAWINGS

Figure 1 is a schematic cross-sectional view showing the structure of a first embodiment of the present invention;

Figure 2 is a plan view of the first embodiment of the present invention;

Figure 3 is a schematic cross-sectional view showing the structure of a second embodiment of the present invention;

Figure 4 is a plan view of a second embodiment of the present invention.

In the figure, 1, the light transmissive layer; 2, the reflective layer. Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Embodiment 1 Referring to FIG. 1 and FIG. 2, an LED light source light guide plate according to this embodiment includes a light transmissive layer 1 made of a high light transmissive material, and is characterized in that: a light-reflecting layer 2 in which the upper surface of the light layer 1 and the light-transmitting layer 1 are tightly bonded together, the light-emitting plate of the LED light source has a circular sheet shape, and the upper surface of the light-transmitting layer 1 and the lower surface of the light-reflecting layer 2 (the light-facing layer) The surface and the upper surface are parabolic curved shapes formed by parabola rotating 360 degrees along the axis of the LED light guide plate, and the reflective layer 2 formed by superimposing the two layers of composite material is closely combined with the upper surface of the transparent layer 1 Together; the bottom layer of the reflective layer 2 is a layer of reflective paint, the painted reflective paint layer is closely combined with the upper surface of the light transmissive layer 1; the surface layer of the reflective layer 2 is a mixture of resin paint and glass beads. The brushed resin varnish and the glass bead mixture layer are closely combined with the reflective lacquer layer; when assembling the luminaire, a plurality of LED light sources are symmetrically designed on the side of the circle periphery of the LED light source light guide plate with a center of symmetry. The plurality of LED light sources are respectively located corresponding to Parabola focus. Embodiment 2, referring to FIG. 3 and FIG. 4, the LED light source light guide plate of the present embodiment includes a light transmissive layer 1 made of a high light transmissive material, and is characterized in that: a light reflecting layer 2 in which the upper surface of the light transmissive layer 1 and the light transmissive layer 1 are tightly bonded together, the LED light source light guide plate has a regular hexagonal shape, and the upper surface of the light transmissive layer 1 and the lower surface of the reflective layer 2 (the mating surface) and the upper surface are parabolic curved shapes formed by parabola rotating 360 degrees along the axis of the LED light guide plate, and the reflective layer 2 and the upper surface of the light transmissive layer 1 are formed by superimposing the two layers of composite materials. closely together; the underlying light reflecting layer 2 is a layer of reflective paint, a closely together on brushing the surface of the light transmissive reflective layer lacquer;. Takashi surface reflecting layer ² is thick resin varnish a layer of the mixture with the glass beads, the mixture of the brushed resin varnish and the glass beads is tightly bonded to the reflective lacquer layer; when assembling the luminaire, the center of the hexagonal periphery of the LED light guide plate is centered Symmetric point-symmetric design with multiple LED light sources; the plurality of LEDs Sources are located on respectively corresponding to the focus of the parabola.

The above description is only two preferred embodiments of the present invention. It should be understood that those skilled in the art can make certain embodiments of the present invention without departing from the principles of the present invention. Variations and modifications, so equivalent changes or modifications made to the structures, features and principles described in the scope of the present patent application are also within the scope of the present patent application.

Claims

Right-profit request

1. The LED light source light guide plate comprises a light transmissive layer made of a high light transmissive material, and is characterized in that: a reflective layer coated on the upper surface of the light transmissive layer and the light transmissive layer is closely combined, The LED light source light guide plate has a circular plate shape, and the upper surface of the light transmissive layer, the lower surface and the upper surface of the light reflecting layer are parabolic curved shapes formed by parabola rotating 360 degrees along the axis of the LED light guide plate.

2. The LED light source light panel according to claim 1, wherein: the reflective layer formed by superimposing the two or more composite materials is closely bonded to the upper surface of the light transmissive layer.

3. The LED light source light guide according to claim 2, wherein: the bottom layer in the reflective layer is a layer of reflective paint, and the painted reflective paint layer is closely combined with the upper surface of the light transmissive layer.

4. The LED light source light guide according to claim 2, wherein: the surface layer in the reflective layer is a mixture layer of a resin varnish and a glass bead, a mixture layer of the resin varnish and the glass bead and a reflective lacquer layer. Tightly joined together.

The LED light source light guide plate according to claim 1, wherein two or more LED light sources are designed symmetrically on the side of the circumference of the LED light source light guide plate with a center of the circle.