WO2003064917A1 - Apparatus and manufacturing method for border lighting - Google Patents
Apparatus and manufacturing method for border lighting Download PDFInfo
- Publication number
- WO2003064917A1 WO2003064917A1 PCT/US2003/002621 US0302621W WO03064917A1 WO 2003064917 A1 WO2003064917 A1 WO 2003064917A1 US 0302621 W US0302621 W US 0302621W WO 03064917 A1 WO03064917 A1 WO 03064917A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light emitting
- set forth
- lighting strip
- tube
- sheath
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S4/00—Lighting devices or systems using a string or strip of light sources
- F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S362/00—Illumination
- Y10S362/80—Light emitting diode
Definitions
- the invention relates to the lighting arts. It is especially applicable to the illumination of border areas such as the sides of staircases and rooms, and will be described with particular reference thereto. However, the invention will also find application in other areas where a linear lighting apparatus is beneficial, such as in outdoor building border lighting and lighted signs.
- Border lighting includes strips of lights or light-emitting material laid along borders of rooms, steps, staircases, and the like. Border lighting enhances safety and increases the brightness of an enclosed space. It can also have aesthetic value. Border lighting is also commonly used outdoors for applications such as safety lighting, lighted signage, and building outlining.
- Border lighting strips typically have certain characteristics that differ from general lighting applications. Border lighting is usually not used as primary illumination, and so the luminous intensity requirements are somewhat relaxed. However, border lighting strips are often placed in areas where physical damage to the strip is likely. For example, a border lighting strip along a step of a staircase is likely to be occasionally stepped upon. Outdoor border lighting strips are exposed to the elements. Thus, physical sturdiness is an important quality, and a watertight sealing can also be advantageous. Another characteristic is that border lighting strips .are often used in substantial lengths. For example, installing border lighting along the boundaries of a typical room with dimensions of 18 feet by 15 feet will require approximately 66 feet of strip lighting, neglecting additions or subtractions due to doors, wall protrusions or recesses, and the like. Thus, manufacturing costs become a significant commercial factor, and a low manufacturing cost per unit length is desirable.
- Prior art border lighting using either neon tubes or LED elements affixed to a PCB support is physically rigid and inflexible. These lighting strips cannot be “bent” around corners in a flexible manner.
- the present invention contemplates an improved border lighting strip that overcomes the above-mentioned limitations and others.
- a border lighting strip is disclosed.
- An electrical cable includes a plurality of electrical conductors.
- a plurality of light emitting devices (LEDs) are arranged alongside the electrical cable and electrically connected thereto.
- a sheath at least partially made from a light transmissive material has a hollow region adapted to receive the LEDs.
- the sheath has an integrally formed cylindrical lens arranged to optically cooperate with the LEDs.
- a linear lamp is disclosed.
- An essentially hollow tube of translucent or transparent material has a plurality of light emitting elements arranged within. At least one electrical wire is arranged within the tube for supplying electrical power to the light emitting elements.
- a lighting strip in accordance with yet another embodiment of the present invention, is disclosed.
- a cord includes a plurality of parallel conductive wires and an insulating coating.
- a plurality of light emitting elements are affixed to the cord and arranged to receive electrical power therefrom.
- An at least partially light transmissive tube surrounds the plurality of light emitting elements and at least a portion of the cord.
- a method for manufacturing a lighting strip.
- a plurality of light emitting devices are electrically connected to an electrical cable to form a linear light source.
- a transparent or translucent sheath is extruded. The sheath is adapted to receive the linear light source. The linear light source is inserted into the extruded sheath.
- One advantage of the present invention is that it provides a rugged and durable border lighting, which can also be made water-tight.
- Another advantage of the present invention is that it is manufactured in a simple and cost-effective manner.
- Another advantage of the present invention is that it provides physically flexible border lighting. Yet another advantage of the present invention is that the light is spread using an optical component built into the protective tube housing to minimize the number of light emitting elements required per unit length.
- the invention may take form in various components and arrangements of components, and in various steps and arrangements of steps.
- the drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
- FIGURE 1 shows a perspective view of a length of border lighting that suitably practices an embodiment of the invention.
- FIGURE 2 shows a cross-sectional view of the embodiment of FIGURE 1.
- FIGURE 3 shows a cross-sectional view of the light transmissive extruded sheath of the embodiment of FIGURE 1.
- FIGURE 4 shows a cross-sectional view of one of the plurality of light emitting elements of the embodiment of FIGURE 1 along with its mount.
- FIGURE 5 shows a cross-sectional view of another border lighting that suitably practices an embodiment of the invention.
- FIGURE 6 schematically shows an exemplary strip light manufacturing process that suitably practices an embodiment of the invention.
- the light source 10 includes a plurality of light emitting elements 12 arranged alongside an electrical cable or cord 14.
- the cable 14 includes a plurality of electrically insulated wires, represented in FIGURE 2 by two thickened regions 14A, 14B corresponding to two wires.
- the exemplary light emitting elements 12 are light emitting diodes such as phosphide-based red light emitting diodes, blue or blue/green nitride- based light emitting diodes, phosphor-coated UV light emitting diodes emitting white or other colored light, or the like. Mixtures of light emitting diodes of various types on the cable 14 are also contemplated, as are other light emitting elements such as miniature incandescent lamps.
- Each of the light emitting elements 12 preferably includes a lead frame having leads 12A, 12B for electrical connection to the light emitting element 12.
- the formation of the light emitting element 12, e.g. light emitting diode, and its connection to leads 12A, 12B of a lead frame can be performed in a large number of ways which are well known to those skilled in the art.
- the light emitting elements 12 are electrically powered by the cable 14 through leads 12A, 12B (FIGURE 2).
- the leads 12A, 12B are connected to the cable wires 14A, 14B, for example by crimping or soldering. Crimped connections are simple to implement and are advantageously rugged compared with many types of soldering bonds.
- the tube lighting 10 also includes an at least partially light transmissive housing, tube, or sheath 16 which is essentially hollow and surroundingly receives the light emitting elements 12 and at least a portion of the electrical cable 14.
- the sheath 16 shields the light emitting elements 12 and the covered portion of the cable 14 from external influences, and is optionally watertight.
- the sheath 16 is at least partially light transmissive at least for light generated by the light emitting elements 12.
- the light emitting elements 12 are advantageously supported inside the sheath 16 by a support, socket, or mount 22.
- a support, socket, or mount 22 In the exemplary embodiment of FIGURES 1 through 4 there is a separate mount 22 corresponding to each light emitting element 12.
- a mount that supports a plurality of light emitting elements is also contemplated.
- the exemplary mount 22 has an opening 24 through which the cable 14 passes.
- the mount 22 could also be connected to the cable 14 in other ways, such as by clamping or by the use of an adhesive.
- the housing, sheath, or tube 16 includes an integral optical element 18, which in the illustrated embodiment is a cylindrical lens 18, that optically cooperates with the light emitting elements 12 to distribute the emitted light using one or more selected operative modes.
- the integral optical element 18 provides wave guiding that distributes the light along the tube.
- the optical element 18 includes one or more refracting portions that refract light generated by the light emitting elements in a manner which enhances distribution of light perpendicular to the tube 16. It is also contemplated that the single cylindrical lens 18 provide both wave guiding and perpendicular refracting.
- the optical behavior is optionally not limited to a particular optical element 18 of the sheath 16. Rather, the entire sheath 16 or significant portions thereof beyond the optical element 18 optionally cooperate with the light emitting elements 12 to achieve a desired light distribution.
- the border tube 10 can be thickened more than would be otherwise cosmetically acceptable, and the number of light emitting elements 12 per unit length can be reduced.
- the light emitting elements 12 are arranged in a straight line facing a single direction.
- the sheath or tube 16 can be made from either a rigid or a flexible transparent or translucent material.
- a flexible sheath 16 results in a flexible linear border lighting 10 which can be arranged to follow corners and other turns within turning radius limits imposed by the sheath 16 or the cable 14.
- a rigid sheath 16 may be preferred for horizontal wall mounting and other applications.
- a strip light 100 that suitably practices another embodiment of the invention is shown in cross-section.
- the light source 100 includes a plurality of light emitting elements 112 arranged alongside an electrical cable 114.
- the cable 114 includes a plurality of electrically insulated wires, represented in FIGURE 5 by two thickened regions 114A, 114B corresponding to two wires.
- the exemplary light emitting elements 112 are light emitting diodes such as phosphide-based red light emitting diodes, blue or blue/green nitride-based light emitting diodes, phosphor-coated UV light emitting diodes emitting white or other colored light, or the like. Mixtures of light emitting diodes of various types on the cable 114 are also contemplated, as are other light emitting elements such as miniature incandescent lamps.
- Each of the light emitting elements 112 preferably includes a lead frame having leads 112A, 112B for electrical connection to the light emitting element 112.
- the formation of the light emitting element 112, e.g. light emitting diode, and its connection to leads 112A, 112B of a lead frame can be performed in a large number of ways which are well known to those skilled in the art.
- the light emitting elements 112 are electrically powered by the cable 114 directly through contacts 112A, 112B, for example by crimping or soldering. Crimped connections are advantageously rugged compared with many types of soldering bonds.
- the tube lighting 100 also includes a translucent or transparent sheath 116 which is essentially hollow and surroundingly receives the light emitting elements 112 and at least a portion of the electrical cable 114.
- the sheath 116 shields the light emitting elements 112 and the covered portion of the cable 114 from external influences, and is optionally watertight.
- the sheath 116 is substantially light transmissive at least for light generated by the light emitting elements 112.
- the transparent or translucent housing, sheath, or tube 116 includes an integral optical element 118, which in the illustrated embodiment is a cylindrical lens 118, that optically cooperates with the light emitting elements 112 to distribute the emitted light using one or more selected operative modes.
- the integral optical element 118 provides wave guiding that distributes the light along the tube.
- the optical element 118 includes one or more refracting portions that refract light generated by the light emitting elements in a manner which enhances distribution of light perpendicular to the tube 116. It is also contemplated that the single cylindrical lens 118 provide both wave guiding and perpendicular refracting.
- the optical behavior is optionally not limited to a particular optical element 18 of the sheath 116. Rather, the entire sheath 116 or significant portions thereof beyond the optical element 118 optionally cooperate with the light emitting elements 112 to achieve a desired light distribution.
- the border tube 100 can be thickened more than would be otherwise cosmetically acceptable, and the number of light emitting elements 112 per unit length can be reduced.
- the light emitting elements 112 are arranged in a straight line facing a single direction.
- the sheath or tube 116 can be made from either a rigid or a flexible transparent or translucent material.
- a flexible sheath 116 results in a flexible linear border lighting 100 which can be arranged to follow corners and other turns within turning radius limits imposed by the sheath 116 or the cable 114.
- a rigid sheath 116 may be preferred for horizontal wall mounting and other applications.
- an exemplary manufacturing process 200 for manufacturing a border lighting strip such as the exemplary border lighting strip 10, 100 is described.
- the light emitting devices include a mount, e.g. the mount 22 of FIGURES 1, 2, and 4, an LED is attached 202 to a mount.
- the attaching.202 is repeated 204 for all the LEDs.
- the attaching 202 is advantageously both physical and electrical, with the latter accomplished by soldering, wire bonding, or the like.
- a mount is attached 208 to the cable by crimping, soldering, or the like, and the attaching 208 is repeated 210 for all the mounts. It will be appreciated that the order of the attachings 202, 208 is unimportant, i.e.
- the LEDs can be attached 202 to the mounts followed by attaching 208 of the mounts to the cable, or alternatively the mounts can be attached 208 to the cable and the LEDs attached 202 to the mounts. In most manufacturing situations, however, it will be preferred to attach 202 the LEDs to the mounts first.
- the LEDs are directly attached to the cable using crimping, soldering, or the like, without the intercession of a mount.
- the electrical connecting 202, 204, 208, 210 of the LEDs to the cable forms a linear light source 214.
- the sheath e.g.
- the sheath 16 of FIGURES 1 through 3 or the sheath 116 of FIGURE 5, can be formed by any suitable manufacturing process.
- a preferred method for the sheath formation is extrusion molding 216.
- Extrusion has a number of manufacturing advantages, including: providing a high degree of freedom in selecting the cross-sectional shape; providing the ability to form a wide range of materials including both flexible and rigid formed materials; and the providing the ability to generate an essentially infinitely variable extruded tube length.
- the linear light source 214 is inserted 218 into the extruded 216 sheath to form the border lighting 220.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002474478A CA2474478A1 (en) | 2002-01-29 | 2003-01-29 | Apparatus and manufacturing method for border lighting |
MXPA04007185A MXPA04007185A (en) | 2002-01-29 | 2003-01-29 | Apparatus and manufacturing method for border lighting. |
EP20030707585 EP1470364A1 (en) | 2002-01-29 | 2003-01-29 | Apparatus and manufacturing method for border lighting |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/683,635 US6997575B2 (en) | 2002-01-29 | 2002-01-29 | Apparatus and manufacturing method for border lighting |
US09/683,635 | 2002-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003064917A1 true WO2003064917A1 (en) | 2003-08-07 |
Family
ID=27613757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2003/002621 WO2003064917A1 (en) | 2002-01-29 | 2003-01-29 | Apparatus and manufacturing method for border lighting |
Country Status (6)
Country | Link |
---|---|
US (1) | US6997575B2 (en) |
EP (1) | EP1470364A1 (en) |
CN (1) | CN1625666A (en) |
CA (1) | CA2474478A1 (en) |
MX (1) | MXPA04007185A (en) |
WO (1) | WO2003064917A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7237925B2 (en) * | 2004-02-18 | 2007-07-03 | Lumination Llc | Lighting apparatus for creating a substantially homogenous lit appearance |
US20060146529A1 (en) * | 2005-01-04 | 2006-07-06 | Hsin-Yin Ho | Plastic light emitting band |
CA2620750A1 (en) * | 2005-05-20 | 2006-11-23 | Tir Technology Lp | Cove illumination module and system |
US20090027900A1 (en) * | 2006-10-31 | 2009-01-29 | The L.D. Kichler Co. | Positionable outdoor lighting |
US7687288B2 (en) * | 2007-03-19 | 2010-03-30 | Lumination Llc | Sealed lighting units |
US7931386B2 (en) * | 2007-03-19 | 2011-04-26 | GE Lighting Solutions, LLC | Flexible LED lighting strips including overmolding encasement and attached parallel electrical conductors |
US8147081B2 (en) * | 2007-12-26 | 2012-04-03 | Lumination Llc | Directional linear light source |
US8251543B2 (en) * | 2008-11-22 | 2012-08-28 | Innovative Lighting, Inc. | Interior corner mounting module for rope light system |
US20100177396A1 (en) * | 2009-01-13 | 2010-07-15 | Craig Lin | Asymmetrical luminance enhancement structure for reflective display devices |
FR2952475B1 (en) * | 2009-11-09 | 2012-03-30 | Leoni Wiring Systems France | ELECTROLUMINESCENT DIODE DEVICE |
CN102384437A (en) * | 2010-08-30 | 2012-03-21 | 欧司朗有限公司 | Lighting device and manufacturing method thereof |
US9470395B2 (en) | 2013-03-15 | 2016-10-18 | Abl Ip Holding Llc | Optic for a light source |
CA3015068C (en) | 2013-05-10 | 2019-07-16 | Abl Ip Holding Llc | Silicone optics |
US20200049329A1 (en) * | 2018-08-08 | 2020-02-13 | General lighting Electronic Co.,Ltd | Led strip that can be bent in three-dimensional space |
Citations (4)
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DE29706201U1 (en) * | 1997-03-27 | 1997-05-28 | Osa Elektronik Gmbh | Illuminating or display element with a light coupling into a light guide body |
US5672000A (en) * | 1994-09-14 | 1997-09-30 | Lin; Tayeh | Decorative lamp strip |
DE29801699U1 (en) * | 1998-02-02 | 1998-04-02 | Chang Kuo Shan | Decorative lamp holder |
CA2282819A1 (en) * | 1999-09-21 | 2001-03-21 | Lumion Corporation | Running board lighting assembly |
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US5155669A (en) | 1987-05-20 | 1992-10-13 | Yukio Yamuro | Light emitting apparatus |
US4950958A (en) * | 1988-06-16 | 1990-08-21 | Lin Ta Yeh | Elongated, bendable lamp |
JPH071804B2 (en) * | 1989-02-15 | 1995-01-11 | シャープ株式会社 | Light emitting element array light source |
DE3929955A1 (en) | 1989-09-08 | 1991-03-14 | Inotec Gmbh Ges Fuer Innovativ | LIGHT SPOTLIGHTS |
US5337225A (en) * | 1993-01-06 | 1994-08-09 | The Standard Products Company | Lighting strip system |
NO934463L (en) * | 1993-12-08 | 1995-06-09 | Jan Erik Vadseth | Lighting device with controllable light sources and light strip with such light sources |
US5848837A (en) | 1995-08-28 | 1998-12-15 | Stantech | Integrally formed linear light strip with light emitting diodes |
DE19627856A1 (en) * | 1996-07-11 | 1998-01-15 | Happich Fahrzeug & Ind Teile | Lighting strip and manufacturing method |
AUPP729298A0 (en) | 1998-11-24 | 1998-12-17 | Showers International Pty Ltd | Housing and mounting system for a strip lighting device |
JP3982932B2 (en) * | 1998-12-11 | 2007-09-26 | 株式会社沖データ | LED array head |
JP2002163907A (en) * | 2000-11-24 | 2002-06-07 | Moriyama Sangyo Kk | Lighting system and lighting unit |
-
2002
- 2002-01-29 US US09/683,635 patent/US6997575B2/en not_active Expired - Fee Related
-
2003
- 2003-01-29 EP EP20030707585 patent/EP1470364A1/en not_active Withdrawn
- 2003-01-29 MX MXPA04007185A patent/MXPA04007185A/en unknown
- 2003-01-29 CN CNA038029545A patent/CN1625666A/en active Pending
- 2003-01-29 CA CA002474478A patent/CA2474478A1/en not_active Abandoned
- 2003-01-29 WO PCT/US2003/002621 patent/WO2003064917A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5672000A (en) * | 1994-09-14 | 1997-09-30 | Lin; Tayeh | Decorative lamp strip |
DE29706201U1 (en) * | 1997-03-27 | 1997-05-28 | Osa Elektronik Gmbh | Illuminating or display element with a light coupling into a light guide body |
DE29801699U1 (en) * | 1998-02-02 | 1998-04-02 | Chang Kuo Shan | Decorative lamp holder |
CA2282819A1 (en) * | 1999-09-21 | 2001-03-21 | Lumion Corporation | Running board lighting assembly |
Also Published As
Publication number | Publication date |
---|---|
US20030142492A1 (en) | 2003-07-31 |
MXPA04007185A (en) | 2005-03-31 |
CN1625666A (en) | 2005-06-08 |
EP1470364A1 (en) | 2004-10-27 |
CA2474478A1 (en) | 2003-08-07 |
US6997575B2 (en) | 2006-02-14 |
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