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
  • F21S4/22—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D1/00—Woven fabrics designed to make specified articles
  • D03D1/0088—Fabrics having an electronic function
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
  • H05B45/40—Details of LED load circuits
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
  • H05B47/10—Controlling the light source
  • H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
• • 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]
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
  • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
  • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
  • H01L2224/42—Wire connectors; Manufacturing methods related thereto
  • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
  • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
  • H01L2224/4805—Shape
  • H01L2224/4809—Loop shape
  • H01L2224/48091—Arched

Definitions

• the present invention relates to light wires and, more specifically, an integrally formed light wire containing light emitting diodes (“LEDs”), and the uses of such LED light wire, wherein the LEDs and associated circuitry of the LED light wire are protected from mechanical damage and environmental hazards, such as water and dust.
• LEDs light emitting diodes
• LED light wires are commonly used in a variety of indoor and outdoor decorative or ornamental lighting applications.
• conventional light wires are used to create festive holiday signs, outline architectural structures such as buildings or harbors, and provide under-car lighting systems.
• These light wires are also used as emergency lighting aids to increase visibility and communication at night or when conditions, such as power outages, water immersion and smoke caused by fires and chemical fog, render normal ambient lighting insufficient for visibility.
• LED light wires consume less power, exhibit a longer lifespan, are relatively inexpensive to manufacture, and are easier to install when compared to light tubes using incandescent light bulbs. Increasingly, LED light wires are used as viable replacements for neon light tubing.
• conventional light wire 100 consists of a plurality of illuminant devices 102, such as incandescent light bulbs or LEDs, connected together by a flexible wire 101 and encapsulated in a protective tube 103.
• a power source 105 creates an electrical current that flows through the flexible wire 101 causing the illuminant devices 102 to illuminate and create an effect of an illuminated wire.
• the illuminant devices 102 are connected in series, parallel, or in combination thereof. Also, the illuminant devices 102 are connected with control electronics in such a way that individual illuminant devices 102 may be selectively switched on or off to create a combination of light patterns, such as strobe, flash, chase, or pulse.
• the protective tube 103 is traditionally a hollow, transparent or semi-transparent tube which houses the internal circuitry ⁇ e.g., illuminant devices 102; flexible wire 101 ). Since there is an air gap between the protective tube 103 and internal circuitry, the protective tube 103 provides little protection for the light wire against mechanical damage due to excessive loads, such as the weight of machinery that is directly applied to the light wire. Furthermore, the protective tube 103 does not sufficiently protect the internal circuitry from environmental hazards, such as water and dust. As a result, these conventional light wires 100 with protective tube 103 are found unsuitable for outdoor use, especially when the light wires are exposed to extreme weather and/or mechanical abuse.
• wires such as flexible wire 101
• these light wires are traditionally pre-assembled using soldering or crimp methods and then encapsulated via a conventional sheet or hard lamination process in protective tube 103.
• Such manufacturing processes are labor intensive and unreliable. Furthermore, such processes decrease the flexibility of the light wire.
• LED light strips In response to the above-mentioned limitations associated with conventional light wires and the manufacture thereof, LED light strips have been developed with increased complexity and protection. These LED light strips consist of circuitry including a plurality of LEDs mounted on a support substrate containing a printed circuit and connected to two separate electrical conductors or bus elements. The LED circuitry and the electrical conductors are encapsulated in a protective encapsulant without internal voids (which includes gas bubbles) or impurities, and are connected to a power source. These LED light strips are manufactured by an automated system that includes a complex LED circuit assembly process and a soft lamination process. Examples of these LED light strips and the manufacture thereof are discussed in U.S. Patent Nos.
• LED light strips are better protected from mechanical damage and environmental hazards, these LED light strips only provide oneway light direction, and are limited to two separate bus elements in its internal LED circuitry. Also, the manufacturing of such LED light strips remains expensive and time-consuming since these LED light strips at least require a protective encapsulant free of internal voids and impurities, as well as crimping each LED connector pin to the internal LED circuitry. Further, the lamination process makes these LED light strips too rigid to bend.
• an integrally formed LED light wire comprising (A) a conductive base comprising a support substrate, wherein the support substrate comprises a first plurality of wires, threads, or a combination thereof, wherein the plurality of wires, threads, or a combination thereof comprises at least one weft element arranged in a first direction and at least two warp elements, each arranged in a second direction such that the at least one weft element and each of the at least two warp elements form plural intersections therebetween, a first bus element formed from a second plurality of wires, threads, or a combination thereof adapted to distribute power from a power source, a second bus element formed from a third plurality of wires, threads, or a combination thereof adapted to distribute power from the power source, a third bus element formed from a fourth plurality of wires, threads, or a combination thereof adapted to distribute a control signal, wherein the first, second,
• the integrally formed LED light wire further comprises an encapsulant completely encapsulating the conductive base and the plurality of LED modules, including the respective microcontrollers.
• the encapsulant further comprises light scattering particles.
• the integrally formed LED light wire further comprises at least one support warp which comprises a fifth plurality of wires, threads, or a combination thereof arranged in the second direction.
• the integrally formed LED light wire wherein a connection between each of the plurality of LED modules and at least one of the bus elements is selected from the group consisting of stitching, weaving, knitting, crimping, soldering, welding, or a combination thereof.
• the second, third and fourth plurality of wires, threads, or a combination thereof are each made of a plurality of conductive wires and/or threads.
• the fifth plurality of wires, threads, or a combination thereof is made of a plurality of non-conductive wires and/or threads.
• the conductive wires and/or threads is selected from the group consisting of nickel wire, steel wire, iron wire, titanium wire, copper wire, brass wire, aluminum wire, tin wire, sliver wire, nickel thread, steel thread, iron thread, titanium thread, copper thread, brass thread, aluminum thread, tin thread, sliver thread, or the like, or a combination thereof.
• the non-conductive wires and/or threads is selected from the group consisting of kevlar wire, nylon wire, cotton wire, rayon wire, polyester wire, laminate thread, flat thread, silk thread, glass fiber, polytetrafluoroethylene ("PTFE”), kevlar thread, nylon thread, cotton thread, rayon thread, polyester thread, a solid polymeric material, or the like, or a combination thereof.
• PTFE polytetrafluoroethylene
• each of the plurality of LED modules further comprises a plurality of LEDs, wherein the plurality of LEDs are selected from the group consisting of red, blue, green, and white LEDs.
• each of the plurality of LED modules further comprises a fourth contact for outputting the received control signal.
• each LED module has a unique address used to control the LED module.
• the unique address is static or dynamic.
• an integrally formed LED light wire comprising (A) a conductive base comprising a support substrate, wherein the support substrate comprises a first plurality of wires, threads, or a combination thereof, wherein the plurality of wires, threads, or a combination thereof comprises at least one weft element arranged in a first direction and at least two warp elements, each arranged in a second direction such that the at least one weft element and each of the at least two warp elements form plural intersections therebetween, a first, second, third, and fourth conductive bus elements, each formed from a second, third, fourth, and fifth plurality of wires, threads, or a combination thereof, respectively, wherein the first, second, third, and fourth conductive bus elements are woven, stitched, or knitted into the support substrate; and at least one conductor segment arranged between the first and second conductive bus elements, the at least one conductor segment comprising at least one LED and a sixth plurality of wires
• the second conductive bus element is a ground and the at least one sensor is additionally electrically coupled to the second conductive bus element.
• the integrally formed LED light wire further comprises an encapsulant completely encapsulating the conductive base, and the at least one sensor electrically coupled to the third and fourth conductive bus elements.
• the encapsulant further comprises light scattering particles.
• the integrally formed LED light wire wherein a connection between the at least one LED and the sixth plurality of wires is selected from the group consisting of stitching, weaving, knitting, crimping, soldering, welding, or a combination thereof.
• the outer profile of the encapsulant comprising an alignment key and an alignment keyhole located at opposite sides of the integrally formed LED light wire.
• a lighting panel comprising a plurality of the integrally formed LED light wires set forth herein.
• FIGURE 1 is a representation of a conventional light wire
• FIGURE 2 is a top view illustrating an integrally formed LED light wire according to an embodiment of the present invention
• FIGURE 3 is a cross-sectional view of the integrally formed LED light wire shown in FIGURE 2;
• FIGURE 4A is a side view of an integrally formed LED light wire according to another embodiment of the present invention.
• FIGURE 4B is a top view of the integrally formed LED light wire shown in FIGURE 4B;
• FIGURE 5A is a cross-sectional view of the integrally formed LED light wire shown in FIGURES 4A & 4B;
• FIGURE 5B is a cross-sectional view of an integrally formed LED light wire according to another embodiment of the present invention.
• FIGURE 6A is an embodiment of a conductive base
• FIGURE 6B is a schematic diagram of the conductive base of FIGURE 6A;
• FIGURE 7 A is another embodiment of a conductive base;
• FIGURE 7B is a schematic diagram of the conductive base of FIGURE 7A;
• FIGURE 8A is another embodiment of a conductive base
• FIGURE 8B is a schematic diagram of the conductive base of FIGURE 8A;
• FIGURE 9A is another embodiment of a conductive base
• FIGURE 9B is a schematic diagram of the conductive base of FIGURE 9A;
• FIGURE 10A is another embodiment of a conductive base
• FIGURE 10B is a schematic diagram of the conductive base of FIGURE 10A;
• FIGURE 11 A is another embodiment of a conductive base
• FIGURE 1 1 B is a schematic diagram of the conductive base of FIGURE 11A;
• FIGURE 1 1 C depicts an embodiment of a conductive base wrapped on a core prior to encapsulation
• FIGURE 12A depicts an embodiment of an LED mounting area of a conductive base
• FIGURE 12B depicts an LED mounted on the LED mounting area shown in FIGURE 12A;
• FIGURE 13 depicts LED chip bonding in another embodiment of an LED mounting area
• FIGURE 14A depicts the optical properties of an integrally formed LED light wire according to an embodiment of the present invention
• FIGURE 14B depicts a cross-sectional view of a dome-shaped encapsulant and the optical properties thereof;
• FIGURE 14C depicts a cross-sectional view of a flat-top-shaped encapsulant and the optical properties thereof;
• FIGURES 15A-C depict a cross-sectional view of three different surface textures of the encapsulant
• FIGURE 16A is a schematic diagram of an integrally formed LED light wire according to an embodiment of the present invention.
• FIGURE 16B depicts an embodiment of the integrally formed LED light wire shown in FIGURE 16A;
• FIGURE 16C is a block diagram illustrating the integrally formed LED light wire shown in FIGURE 16B;
• FIGURE 17A is a block diagram of an integrally formed LED light wire according to another embodiment of the present invention.
• FIGURE 17B is a cross-sectional view of the integrally formed LED light wire shown in FIGURE 17A;
• FIGURE 17C is a block diagram illustrating an integrally formed LED light wire according to an embodiment of the present invention.
• FIGURE 18 is a block diagram illustrating an integrally formed LED light wire containing at least a sensor or detector according to an embodiment of the present invention
• FIGURE 19A is a schematic diagram of a full color integrally formed LED light wire according to an embodiment of the present invention.
• FIGURE 19B is a block diagram illustrating an embodiment of the integrally formed LED light wire shown in FIGURE 19A;
• FIGURE 20 is a schematic diagram of a control circuit for a full color integrally formed LED light wire
• FIGURE 21 is a timing diagram for a full color integrally formed LED light wire
• FIGURE 22A is a timing diagram for a full color integrally formed LED light wire
• FIGURE 22B is a timing diagram for a full color integrally formed LED light wire
• FIGURE 23 is a schematic diagram of an integrally formed LED light wire containing a plurality of LED modules according to an embodiment of the present invention.
• FIGURE 24 is a layout diagram of the integrally formed LED light wire shown in FIGURE 23;
• FIGURE 25A is a block diagram illustrating a lighting panel comprising a plurality of integrally formed LED light wires with interlocking alignment system according to an embodiment of the present invention;
• FIGURE 25B is a cross-sectional view of the lighting panel shown in FIGURE 25A;
• FIGURE 25C is a cross-sectional view of a lighting panel comprising a plurality of integrally formed LED light wires according to another embodiment of the present invention
• FIGURE 26 is a diagram showing an LED module suitable for use in dynamic addressing in the integrally formed LED light wire described in the present application;
• FIGURE 27 is a diagram showing plural LED modules as shown in FIGURE 26 connected in a light wire configuration
• FIGURES 28A and 28B are a schematic diagram and a depiction of an exemplary weave pattern, respectively;
• FIGURES 28C and 28D are a schematic diagram and a depiction of an exemplary knitting stitching pattern, respectively;
• FIGURES 29A and 29B is a cross-sectional view and a top perspective view, respectively, of a conductive base of an integrally formed LED light wire according to another embodiment of the present invention.
• FIGURE 30 is a top perspective view of the integrally formed LED light wire of FIGURES 29A and 29B with a PCB electrically connected via stitching to the conductive base;
• FIGURES 31 A and 31 B is a bottom perspective view and a top perspective view, respectively, of the integrally formed LED light wire of FIGURES 29A and 29B with an LED electrically connected via crimping to the conductive base.
• the present invention relates to an integrally formed LED light wire containing a plurality of LEDs that are connected in series, parallel or a combination thereof on at least one conductive bus element which forms a mounting base or on at least two conductive bus elements mounted on a support substrate made of insulating material (e.g., plastic) to provide a mounting base.
• the mounting base provides electrical connection and a physical mounting platform or a mechanical support for the LEDs.
• the mounting base can also act as or include a light reflector for the LEDs.
• the mounting base and LEDs are encapsulated in a transparent or semi- transparent encapsulant which may contain light scattering particles.
• an integral LED light wire which includes a sub-assembly 310 comprising at least one LED 202 connected to a conductive base 201 , the sub-assembly 310 is encapsulated within an encapsulant 303, and the conductive base 201 comprises one conductive bus element formed from a conductive material capable of distributing power from a power source. As shown in FIGURE 2, the LEDs 202 are connected in series. This embodiment offers the advantage of compactness in size, and allows the production of a long, thin LED light wire with an outer diameter of 3mm or less.
• the conductive base 201 is operatively connected to a power source 205 to conduct electricity.
• the present invention may be an integrally formed LED light wire 400 comprising a plurality of sub-assemblies 510.
• Each sub-assembly 510 comprises at least one LED 202 connected to a conductive base 401 , wherein the conductive base 401 has two conductive bus elements 401 A and 401 B.
• the subassemblies 510 are encapsulated within an encapsulant 503. As shown, the LEDs 202 are connected in parallel.
• the conductive base 401 is operatively connected to a power source 405 to activate LEDs 202.
• the present invention may include a plurality of sub-assemblies 750.
• Each sub-assembly 750 includes at least one LED 202 (for example, a SMD-On-Board LED) connected to a conductive base 94 having at least two conductive bus elements 94A and 94B, wherein the conductive base 94 is mounted on a support substrate 90.
• LED 202 for example, a SMD-On-Board LED
• AC or DC power from a power source such as power source 405 may be used to power the integrally formed LED light wire. Additionally, a current source may be used. Brightness may be controlled by digital or analog controllers.
• the conductive base 94, 201 , 401 extends longitudinally along the length of the integrally formed LED light wire, and act as an electrical conductor, and as a physical mounting platform or a mechanical support for the LEDs 202.
• the conductive base can also act as or include a light reflector for the LEDs 202.
• the conductive base 201 , 401 may be, for example, punched, stamped, printed, silk-screen printed, or laser cut, or the like, from a metal plate or foil to provide the basis of an electrical circuit, and may be in the form of a thin film or flat strip.
• the conductive bus elements of conductive base 94, 201 , 401 , and conductive segments may also be formed using rigid electrical conductive materials (such as metal rod, metal strip, copper plate, copper clad steel plate, metal strip, a rigid base material coated with an electrically conductive material, or the like), or flexible electrical conductive materials (such as thin metal strip, copper clad alloy wire, stranded wire, braided wire, or the like).
• Stranded wire or braided wire may be flat or round, and comprises a plurality of electrical conductive fine wires made of copper, brass, aluminum, or the like; such fine wires may be bare or coated with electrical conductive materials including, but not limited to, tin, nickel, silver, or the like.
• Electrical conductive materials including, but not limited to, tin, nickel, silver, or the like.
• Metal mentioned in this paragraph, may include copper, brass, aluminum, or the like.
• flat braided wire is used as conductive bus elements or conductive segments, said conductive bus elements or conductive segments are flexible.
• the use of flat braided wire in the present invention promotes increased flexibility in a direction perpendicular to the length of the flat conductive bus elements.
• flat braided wire provides higher thermal conductivity to dissipate more efficiently the heat from the LEDs, thereby allowing the present invention to operate at higher power and achieve greater brightness than conventional light wires with solid flat strips.
• the maximum length of the LED light wires is determined by the conductivity of the conductive bus elements.
• the voltage drop in the power bus increases as the LED light wires becomes longer due to its resistance and increasing current flow drawn by the increasing load of additional LEDs. Eventually, the voltage drop becomes too great at a particular maximum length of the LED light wire.
• the maximum length of the integrally formed LED light wire can be increased by increasing the cross- sectional area of the conductive bus (e.g., increasing the gauge of braided wire used as conductive bus elements or segments), thereby reducing its resistance per unit length.
• the conductive bus elements of conductive base 94 may be mounted on a support substrate 90 via adhesion, lamination, extrusion, or casting.
• the support substrate 90 may be made of rigid or flexible plastic, such as polyethylene terephthalate (PET), polyvinyl chloride (PVC), and thermoplastic polyurethane (TPU).
• Additional circuitry such as active or passive control circuit components (e.g., a microprocessor, a resistor, a capacitor), may be added and encapsulated within an encapsulant to add functionality to the integrally formed LED light wire.
• Such functionality may include, but not limited to, current limiting ⁇ e.g., resistor 10), protection, flashing capability, or brightness control.
• a microcontroller or microprocessor may be included to make the LEDs 202 individually addressable; thereby, enabling the end user to control the illumination of selective LEDs 202 in the LED light wire to form a variety of light patterns, e.g., strobe, flash, chase, or pulse.
• external control circuitry is connected to the conductive base 94, 201 , 401.
• the base material of the conductive base 601 is preferably a long thin narrow metal strip or foil.
• the base material is copper.
• the pilot holes 605 on the conductive base 600 act as a guide for manufacture and assembly.
• the LEDs 202 are mounted either by surface mounting or LED chip bonding and soldered, welded, riveted or otherwise electrically connected to the conductive base 601 as shown in FIGURE 6A.
• the mounting and soldering of the LEDs 202 onto the conductive base 601 not only puts the LEDs 202 into the circuit, but also uses the LEDs 202 to mechanically hold the different unpunched parts of the conductive base 601 together.
• all of the LEDs 202 are short- circuited, as shown in FIGURE 6B. Thus, additional portions of conductive base 601 are removed as discussed below so that the LEDs 202 are not short-circuited.
• the material from the conductive base 601 is removed after the LEDs 202 are mounted.
• FIGURE 7A the conductive base 701 has an alternative hole pattern 702 relative to the hole pattern 602 depicted in FIGURE 6A. With the alternative hole pattern 702, the LEDs 202 (such as the three shown in FIGURES 7A and 7B) are connected in series on the conductive base 701 .
• FIGURE 7B which is a schematic diagram of the conductive base assembly 700 shown in FIGURE 7A. As shown, the mounting portions of LEDs 202 provide support for the conductive base 701.
• a conductive base assembly 800 is depicted having a pattern 802 that is punched out or etched into the conductive base 801. Pattern 802 reduces the number of punched-out gaps required and increase the spacing between such gaps. Pilot holes 805 act as a guide for the manufacturing and assembly process. As shown in FIGURE 8B, the LEDs 202 are short-circuited without the removal of additional material. In one embodiment, the material from conductive base 801 is removed after the LEDs 202 are mounted.
• a fourth embodiment of the conductive base assembly 900 contains an alternative hole pattern 902 that, in one embodiment, is absent of any pilot holes. Compared to the third embodiment, more gaps are punched out in order to create two conducting portions in the conductive base 901. Thus, as shown in FIGURE 9B, this embodiment has a working circuit where the LEDs 202 connected in series.
• FIGURE 10A illustrates a fifth embodiment of conductive base assembly 1000 of the conductive base 1001. Shown is a thin LED light wire with a typical outer diameter of 3mm or less. As shown in FIGURE 10A, (1 ) the LEDs 202 connected on the conductive base 1001 are placed apart, preferably at a predetermined distance. In a typical application, the LEDs 202 are spaced from 3cm to 1 m, depending upon, among other things, at least the power of the LEDs used and whether such LEDs are top or side-emitting.
• the conductive base 1001 is shown absent of any pilot holes. The punched- out gaps that create a first hole pattern 1014 that are straightened into long thin rectangular shapes.
• the gaps 1030 under the LEDs 202 are punched out after the LEDs 202 are mounted to conductive base 1001 , or, in the alternative, LEDs 202 are mounted over punched-out gaps 1030.
• the resultant circuit for this embodiment is not useful since all the LEDs 202 are short-circuited. In subsequent procedures, additional material is removed from conductive base 1001 so that LEDs 202 are in series or parallel as desired.
• conductive base 1101 in the sixth embodiment of the conductive base assembly 1 100, contains a hole pattern 1118 which creates a working circuit in the conductive base 1 101 with a series connections of LEDs 202 mounted onto the conductive base 1101. This embodiment is useful in creating a thin LED light wire with a typical outside diameter of 3mm or less.
• FIGURES 29A and 29B illustrate another embodiment of conductive base 4000 which is weaved and/or knitted with a plurality of wires and/or threads.
• the conductive base 4000 includes a support substrate 4100 containing a plurality of wires and/or threads, wherein the plurality of wires comprises at least one wire or thread as a weft element (e.g., weft element 4510) and at least two wires and/or threads as warp elements (e.g., warp elements 451 1 and 4512).
• the conductive base 4000 can include at least one support warp (e.g., support warps 4513 and 4514) which comprises a plurality of warp elements grouped together and are in approximately parallel to one another.
• the support warps 4513 and 4514 provide additional mechanical strength while encouraging enhanced flexibility of the conductive base 4000.
• the at least one weft element 4510 can be arranged in a first direction and the at least two warp elements 451 1 and 4512 can be arranged in a second direction such that the weft element 4510 and each of the warp elements 4511 and 4512 form plural intersections therebetween.
• the weft element 4510 and each of the warp elements 4511 and 4512 can be arranged approximately perpendicular or at other angles (but not parallel) to each other at such plural intersections.
• the support substrate can be conductive or not conductive, and can be made with conductive and/or non-conductive wires and/or threads.
• Conductive wire or thread includes, but is not limited to, flexible electrical conductive material (such as copper clad allow wire, stranded wire, braided wire, or the like).
• Stranded wire or braided wire may be flat or round, and comprises a plurality of electrical conductive fine wires made of nickel, steel, iron, titanium, copper, brass, aluminum, or the like, or non-metal conductive such as carbon fiber, or a combination thereof; such fine wires may be bare or coated with electrical conductive materials including, but not limited to, tin, nickel, silver, or the like.
• a fine wire or thread made of tin, nickel, steel, titanium, silver, copper, brass, aluminum, or the like can also be used in the support substrate.
• Non- conductive wire or thread includes, but is not limited to, kevlar, nylon, cotton, rayon, polyester, laminate thread, flat thread, silk thread, glass fiber, polytetrafluoroethylene (“PTFE”), any solid polymeric material, or the like, or a combination thereof.
• PTFE polytetrafluoroethylene
• the conductive base 4000 includes conductive bus elements 4061 , 4062, and 4063, wherein the conductive bus elements each comprises a plurality of wires, wherein the plurality of wires comprises at least one wire or thread that is weaved and/or knitted into the support substrate.
• the conductive bus elements can be adapted in the following manner: a first conductive bus element 4061 can be adapted to distributed power from a power source; a second conductive bus element 4062 can be adapted to distributed a control signal; and a third conductive bus element 4063 can be adapted as a ground.
• the conductive base 4000 also include more than three conductive bus elements.
• Electronic components such as LEDs, resistors, diodes, transistors, fuses, or any integrated circuits can be directly mounted on the conductive base 4000, or can be pre-assembled on a printed circuit board (e.g., rigid PCB or flexible PCB) and then the printed circuit board can be mounted on the conductive base 4000.
• Mounting methods includes, but not limited to, soldering, welding, crimping, stitching, weaving, knitting, or a combination thereof.
• Conductive base 4000 can be constructed by hand, a weaving machine and/or a knitting machine. Since the components of this embodiment are mainly made of a plurality of wires and/or thread, manufacturing of this embodiment requires a decreased number of different components, which in turn present decreased material costs and increased environmental-friendly manufacturing processes. In addition, the flexibility of the embodiment provides versatility in creating organic form factors, and it can take on the personality of paper and/or fabric. For example, the embodiment can be used to create LED lighting wallpaper or LED clothing.
• LED 202 can be mounted onto the conductive base 4000 by soldering, welding, crimping, stitching, weaving, knitting, or a combination thereof.
• LED 202 can be electrically connected to at least one of the conductive bus elements 4061 , 4062, 4063 by stitching, weaving, and/or knitting with at least a conductive wire or thread, or by crimping.
• the LED 202 can also be soldered onto at least one of the bus elements 4061 , 4062, 4063 of the conductive base 4000.
• This embodiment of the conductive base 4000 can be used in all embodiments of the integrally formed LED light wire disclosed in this application.
• the LEDs 202 may be, but are not limited to, individually-packaged LEDs, chip-on-board (“COB”) LEDs, leaded LEDs, surface mount LEDs, SMD-On-Board LEDs, or LED dies individually die-bonded to the conductive base 301 .
• the PCB for COB LEDs and SMD-On-Board LEDs may be, for example, FR4 PCB, flexible PCB, or metal-core PCB.
• the LEDs 202 may also be top-emitting LEDs, side-emitting LEDs, or a combination thereof.
• the LEDs 202 are not limited to single colored LEDs. Multiple-colored LEDs may also be used. For example, if Red/Blue/Green LEDs (RGB LEDs) are used to create a pixel, combined with a variable luminance control, the colors at each pixel can combine to form a range of colors.
• RGB LEDs Red/Blue/Green LEDs
• LEDs 202 are mounted onto the conductive base by methods known in the art, including surface mounting, LED chip bonding, spot welding and laser welding.
• the conductive base 1201 is first punched to assume any one of the embodiments discussed above, and then stamped to create an LED mounting area 1210.
• the LED mounting area 1210 shown is exemplary, and other variations of the LED mounting area 1210 are possible.
• the LED mounting area 1210 may be stamped into any shape which can hold an LED 202, or not stamped.
• a soldering material 1210 e.g., liquid solder; solder cream; solder paste; and any other soldering material known in the art
• conductive epoxy is placed either manually or by a programmable assembly system in the LED mounting area 1220, as illustrated in FIGURE 12A.
• LEDs 202 are then placed either manually or by a programmable pick and place station on top of the soldering material 1210 or a suitable conductive epoxy.
• the conductive base 1201 with a plurality of LEDs 202 individually mounted on top of the soldering material 1210 may directly go into a programmable reflow chamber where the soldering material 1210 is melted or a curing oven where the conductive epoxy is cured. As a result, the LEDs 202 are bonded to the conductive base 1201 as shown in FIGURE 12B.
• LEDs 202 may be mounted onto the conductive base 1301 by LED chip bonding.
• the conductive base 1301 is stamped to create a LED mounting area 1330.
• the LED mounting area 1330 shown in FIGURE 13 is exemplary, and other variations of the LED mounting area 1330, including stamped shapes, like the one shown in FIGURE 12A, which can hold an LED, are envisioned.
• LEDs 202 preferably an LED chip, are placed either manually or by a programmable LED pick place machine onto the LED mounting area 1330.
• the LEDs 202 are then wire bonded onto the conductive base 1301 using a wire 1340. It should be noted that wire bonding includes ball bonding, wedge bonding, and the like.
• LEDs 202 may be mounted onto the conductive base 301 using a conductive glue or a clamp.
• LED 202 can be mounted onto the conductive base 4000 by stitching, weaving, knitting or crimping.
• LED 202 can be electrically connected to at least one of the conductive bus elements 4061 , 4062, 4063 by stitching, weaving, and/or knitting with at least a conductive wire or thread, or by crimping.
• the LED 202 can also be soldered or welded onto at least one of the conductive bus elements 4061 , 4062, 4063 of the conductive base 4000.
• FIG. 30 As shown in FIGS. 30, 31 A & 31 B, LED 202 can be mounted onto the conductive base 4000 by stitching, weaving, knitting or crimping.
• LED 202 can be electrically connected to at least one of the conductive bus elements 4061 , 4062, 4063 by stitching, weaving, and/or knitting with at least a conductive wire or thread, or by crimping.
• the LED 202 can also be soldered or welded onto at least one of the conductive bus elements 4061 ,
• the PCB 1200 (which would have a LED 202 electrically connected thereto) has at least one eyelet 1320 where at least a conductive wire or thread can be threaded through the at least one eyelet 1320 and stitched, weaved, and/or knitted into at least one of conductive bus elements of the conductive base 4000 to create an electrical connection between the LED 202 and the conductive base 4000.
• the LED 202 is electrically connected to PCB 1200which has a crimping arm 121 1 , the crimping arm 121 1 is electrically connected to first conductive bus 4061 .
• the conductive base in the above embodiments can be twisted in an "S" shape. Then, the twisting is reversed in the opposite direction for another predetermined number of rotations; thereby, making the conductive base form a shape of a "Z".
• This "S-Z” twisted conductive base is then covered by an encapsulant. With its “S-Z” twisted placement, this embodiment will have increased flexibility, as well as emit light uniformly over 360°.
• conductive base ⁇ e.g., conductive base 1 101 ) delivering electrical current to the LEDs is wound into spirals.
• the spiraling process can be carried out by a conventional spiraling machine, where the conductive base is placed on a rotating table and a core 9000 passes through a hole in the center of the table.
• the pitch of the LED is determined by the ratio of the rotation speed and linear speed of the spiraled assembly.
• the core 9000 may be in any three-dimensional shape, such as a cylinder, a rectangular prism, a cube, a cone, a triangular prism, and may be made of, but not limited to, polymeric materials such as polyvinyl chloride (PVC), polystyrene, ethylene vinyl acetate (EVA), polymethylmethacrylate (PMMA) or the like, or, in one embodiment, elastomer materials such as silicon rubber.
• PVC polyvinyl chloride
• EVA ethylene vinyl acetate
• PMMA polymethylmethacrylate
• the core 9000 may also be solid.
• the conductive base delivering electrical current to the LEDs is wound into spirals on a solid plastic core and then encapsulated in a transparent elastomer encapsulant.
• the encapsulant provides protection against environmental elements, such as water and dust, and damage due to loads placed on the integral LED light wire.
• the encapsulant may be flexible or rigid, and transparent, semi- transparent, opaque, and/or colored.
• the encapsulant may be made of, but not limited to, polymeric materials such as polyvinyl chloride (PVC), polystyrene, ethylene vinyl acetate (EVA), polymethylmethacrylate (PMMA) or other similar materials or, in one embodiment, elastomer materials such as silicon rubber.
• Fabrication techniques concerning the encapsulant include, without limitation, extrusion, casting, molding, laminating, injection molding, or a combination thereof.
• the encapsulant can assist in the scattering and guiding of light in the LED light wire. As illustrated in FIGURE 14, that part of the light from the LEDs 202 which satisfies the total internal reflection condition will be reflected on the surface of the encapsulant 1403 and transmitted longitudinally along the encapsulant 1403.
• Light scattering particles 1404 may be included in the encapsulant 1403 to redirect such parts of the light as shown by light path 1406, as well as attenuate or eliminate hot spots of light.
• the light scattering particles 1404 are of a size chosen for the wavelength of the light emitted from the LEDs.
• the light scattering particles 1404 have a diameter in the scale of nanometers and they can be added to the polymer either before or during the extrusion process.
• conductive base 1401 can also act as or include a light reflector within the LED light wire.
• the light scattering particles 1404 may also be a chemical by-product associated with the preparation of the encapsulant 1403. Any material that has a particle size (e.g., a diameter in the scale of nanometers) which permits light to scatter in a forward direction can be a light scattering particle.
• the concentration of the light scattering particles 1404 is varied by adding or removing the particles.
• the light scattering particles 1404 may be in the form of a dopant added to the starting material(s) before or during the extrusion process.
• air bubbles or any other internal voids may be used as a light scattering particle 1404.
• the concentration of the light scattering material 1404 within the encapsulant 1403 is influenced by the distance between LEDs, the brightness of the LEDs, and the uniformity of the light. A higher concentration of light scattering material 1404 may increase the distance between neighboring LEDs 202 within the LED light wire.
• the brightness of the LED light wire may be increased by employing a high concentration of light scattering material 1404 together within closer spacing of the LEDs 202 and/or using brighter LEDs 202.
• the smoothness and uniformity of the light within the LED light wire can be improved by increasing the concentration of light scattering material 1404 may increase such smoothness and uniformity.
• the sub-assemblies 310, 510 and 750 are substantially at the center of the encapsulant.
• the sub-assemblies 310, 510 and 750 are not limited to this location within the encapsulant.
• the sub-assemblies 310, 510 and 750 may be located anywhere within the encapsulant.
• the cross-sectional profile of the encapsulant is not restricted to circular or oval shapes, and may be any shape (e.g., square, rectangular, trapezoidal, star).
• the cross-sectional profile of the encapsulant may be optimized to provide either a narrow or wide viewing angle (see light paths 1450 and 1460 in FIGURES 14B (dome-shaped profile of encapsulant 222) and 14C (flat-top profile of encapsulant 223), respectively) and/or lensing for light emitted by the LEDs 202.
• a narrow or wide viewing angle see light paths 1450 and 1460 in FIGURES 14B (dome-shaped profile of encapsulant 222) and 14C (flat-top profile of encapsulant 223), respectively
• another thin layer of encapsulant may be added outside the original encapsulant to further control the uniformity of the emitted light from the present invention.
• the surface of the integral LED light wire can be textured and/or lensed for optical effects.
• the integral LED light wire may be coated (e.g., with a fluorescent material), or include additional layers to control the optical properties (e.g., the diffusion and consistency of illuminance) of the LED light wire. Additionally, a mask may be applied to the outside of the encapsulant to provide different textures or patterns.
• Different design shapes or patterns may also be created at the surface of the encapsulant by means of hot embossing, stamping, printing and/or cutting techniques to provide special functions such as lensing, focusing, and/or scattering effects.
• the present invention includes formal or organic shapes or patterns (e.g., dome, waves, ridges) which influences light rays 1500 to collimate (FIGURE 15A), focus (FIGURE 15B), or scatter/diffuse (FIGURE 15C).
• the surface of the encapsulant may be textured or stamped during or following extrusion to create additional lensing.
• the encapsulant 93, 303 and 503 may be made with multiple layers of different refractive index materials in order to control the degree of diffusion.
• the present invention of the integrally formed LED light wire finds many lighting applications.
• the following are some examples such as LED light wires with 360° Illumination, full color LED light wires, LED light wires with sensor or detectors, and LED light wires with individually controlled LEDs.
• the LED light wires may aligned side-by-side or stacked in order to create a lighting panel. It should be noted that these are only some of the possible light wire applications.
• the three copper wires 161 , 162, 163 delivering electrical power to the LEDs 202 shown in FIGURE 16B forming the conductive base may be wound into spirals (see FIGURE 11 C).
• the LEDs are connected to the conductors by soldering, ultrasonic welding or resistance welding.
• Each neighboring LED can be orientated at the same angle or be orientated at different angles. For example, one LED is facing the front, the next LED is facing the top, the third LED is facing the back, and the fourth one is facing the bottom etc.
• the integrally formed LED light wire can illuminate the whole surrounding in 360°.
• FIGURES 16B and 16C An embodiment of the integrally formed LED light wire is shown in FIGURES 16B and 16C. As shown, there are two continuous conductors identified as conductive bus elements 161 and 163. Zero ohm jumpers or resistors 10 couple conductor segments 162 to conductive bus elements 161 and 163 to provide power to LED elements 202. As shown in FIGURE 16B, conductive bus elements 161 and 163 are mounted on a support substrate 90. In a preferred embodiment, the conductive bus elements 161 and 163 and support substrate 90 are flexible. In another embodiment, the LED light wire with flexible support substrate is wound in spirals about a core 9000 (see, for example, FIGURE 11 C), and then is encapsulated in an encapsulant.
• FIGURE 30 Another embodiment of the integrally formed LED light wire is shown in FIGURE 30 with conductive base 4000.
• a conductive base 4000 which includes a support substrate 4100 containing a plurality of wires and/or threads, wherein the plurality of wires comprises at least one wire or thread as a weft element (e.g., weft element 4510) and at least two wires and/or threads as warp elements (e.g., warp elements 4511 and 4512).
• conductive bus elements 4061 , 4062, and 4063 wherein each conductive bus element are can be formed from a plurality of wires and/or threads.
• the conductive base 4000 has support warps 4513 and 4514.
• the conductive base 4000 can have one or more conductive bus elements and/or one or more support warps.
• PCB 1200 (which has LED 202 electrically connected thereto) has at least one eyelet 1320 wherein at least a conductive wire or thread can be threaded through the at least one eyelet 1320 and stitched, weaved, and/or knitted into at least one of the bus elements of the conductive base 4000 to create an electrical connection between the LED 202 and the conductive base 4000.
• PCB 1200 is stitched to second bus element 4062, and thereby creating an electrical connection between the LED 202 and the conductive base 4000.
• FIGURES 31A and 31 B Another embodiment of the LED light wire is shown in FIGURES 31A and 31 B.
• the LED 202 is electrically connected to PCB 1200, wherein PCB 1200 has a crimping arm 121 1 , and the crimping arm 121 1 is electrically connected to conductive bus element 4061.
• the integrally formed LED light wire is not limited to single color.
• the single color LED is replaced by multiple LEDs or an LED group consisting of four sub-LEDs in four different colors: red, blue, green, and white as shown in FIGURE 20.
• the intensity of each LED group (one pixel) can be controlled by adjusting the voltage applied across each sub-LED.
• the intensity of each LED is controlled by a circuit such as the one shown in FIGURE 20.
• L1 , L2, and L3 are the three signal wires for supplying electric powers to the four LEDs in each pixel.
• the color intensity of each sub-LED is controlled by a 6000 with the timing chart given in FIGURE 21.
• New colors such as cold white and orange apart from the four basic ones can be obtained by mixing the appropriate basic colors over a fraction of a unit switching time. This can be achieved by programming a microprocessor built into the circuit.
• FIGURES 22A and FIGURE 22B show the timing diagrams of color rendering for cold white and orange respectively. It should be noted that the entire color spectrum can be represented by varying the timing of signals L1 , L2, and L3.
• the integrally formed LED light wire includes a plurality of pixels (LED modules), wherein each pixel has one or more LEDs, and each pixel can be controlled independently using a microprocessor circuit integrated with said one or more LEDs.
• Each pixel is a LED module comprising a microcontroller and at least one or more LEDs (e.g., a single R,G,B, or W LED, three (RGB) LEDs, or four (RGBW) LEDs).
• FIGURE 27 illustrates an exemplary plurality of pixels (LED modules 2100), each pixel with four (RGBW) LEDs. Each LED module 2100 is assigned a unique address. When this address is triggered, that LED module is lit up.
• the LED modules are serially connected with a signal wire based on a daisy chain or star bus configuration. Alternatively, the LED modules 2100 are arranged in parallel.
• the first approach is static addressing in which each pixel is pre-assigned a fixed address during manufacture, and is unable to monitor any changes, particularly as to pixel failure or a changed length of the LED light wire.
• the second approach is dynamic addressing in which each pixel is assigned an address dynamically with its own unique address and each pixel being characterized by its own "address" periodically with a trigger signal. Alternatively, the address is assigned dynamically when powered on. Because dynamic addressing allows the LED modules to reconfigure their addressing based on the signals received at an LED module, the integrally LED light wires which use such dynamically addressable LED modules can achieve flexibility as to installation, maintenance, failure detection and repair.
• the integrally formed LED light wire includes pixels (LED modules) in which the addresses of the pixels are assigned dynamically, by the pixels themselves, rather than preset during manufacture, as in static addressing.
• each LED module 2000 preferably comprises LEDs 2004 (either R,G, B or W LEDs, or a combination thereof); a microcontroller 2002; a data port (DATA); two I/O ports, one of which is configured to be the output port (SO) and one of which is configured to be the input port (S1 ); one power port (VCC); and one ground port (GND).
• DATA data port
• SO output port
• VCC power port
• GND ground port
• microcontroller 2002 in each LED module 2000 is to (a) receive data from its own data port and to receive commands and graphic signals, (b) process the dynamic address system, and (c) drive the LED(s) in their own LED module, each LED module forming a pixel.
• the LED modules 2000 are preferably connected as follows:
• VCC and GND ports are each connected to the power and ground buses, respectively.
• the DATA ports are connected a common bus.
• Such common bus can transmit control signals to and from LED modules.
• a control signal can be, for example, a request from a LED module to the remote display memory 2006 for data (e.g., display data (e.g., current display information)), or data from remote display memory 2006 to a specific LED module regarding current display information.
• the I/O ports is an out-port and is grounded and the I/O ports S1 is an in-port and is connected to VCC.
• the in- and out-ports of neighboring LED modules are interconnected as shown in schematic form in FIGURE 27.
• the in-port (S1 ) of the last LED module in the integrally formed LED light wire only has a connection to its out-port (SO), while its in-port (S1 ) is left open, designating this particular LED module as the initiating LED module for dynamic addressing when the LED light wire is powered up.
• the last LED module is assigned position No. 0.
• the microcontroller of the LED module checks the status of its input port, and if that port is in an unconnected state, recognizes that the pixel to which it belongs should be assigned position 0.
• the microcontroller of LED module assigned position No. 0 then starts dynamically addressing by communicating its position to its neighboring LED module as No. 0 pixel and assigning thereby its neighbor's address as No. 1.
• the pixel with an address so assigned then communicates with its succeeding neighboring LED module, in a daisy chain recursion, assigning addresses as shown in FIGURE 27.
• the individual pixels, each controlled by a microcontroller assign their own addresses when powered up and can re-assign the own addresses should the one pixel fail or the LED light wire is cut.
• the status of the ports recognized by the microcontroller is not limited to being an open state, but may be any predetermined state that could be recognized by the microcontroller as being indicative of no connection.
• all of the LED modules 2000 share a single data line and each LED module sends to the remote display memory 2006 requests for data (e.g., display data (e.g., current display information)), which data is changed and refreshed by the display controller 2008.
• the display controller 2008 would typically be programmed to update the display data in the display memory 2006, and each pixel (LED module) picks up its respective data from the display memory 2006.
• a function of the display controller 2008 is to change and refresh the display memory.
• the display memory 2006 and display controller 2008 would preferably communicate with one another by the use of address bus 2010 and data bus 2012, as is known to those skilled in the art.
• the integrally formed LED light wires containing LED modules can be cut to any desired length, even when powered on and functioning. If the integrally formed LED light wire is either cut while powered on, or cut while powered off and afterwards powered on, the cut creates an open circuit and the S1 port of the LED module preceding the cut becomes disconnected. Because the microcontroller of the LED module preceding the cut would now recognize that its S1 port is open, it would then assign itself position No. 0, and by the process described above become the new initiating LED module for dynamic addressing. All preceding LED modules acquire new addresses corresponding to the new initiating LED module.
• FIGURES 17A-17C depict an embodiment of the LED light wire using a series and parallel connection. This embodiment allows the LEDs to be turned through 90° (positioned transversely instead of longitudinally) and mounted at a much closer pitch.
• the integrally formed LED light wire may have a plurality of conductors (e.g., conductive bus elements and conductive segments) which are coupled by zero ohm jumpers or resistors, LEDs, sensors, detectors and/or microprocessors, and are mounted on a support substrate.
• the functionality of the LED light wire increases with each additional conductor.
• a sensor or detector which monitors environment conditions (such as humidity, temperature, and brightness) may be integrated in the LED light wire, and connected in such a manner that it may influence the lighting characteristics of the LED light wire.
• FIGURE 18 shows an embodiment of the integrally formed LED light wire with sensors or detectors.
• Conductive bus element 30 provides power to the LEDs 202
• conductive bus element 34 provides power to the sensor/detector 100.
• Conductive bus element 33 may direct the signal from the sensor/detector 100 to a power source which supplies power to the LEDs 202; thereby, allowing the sensor/detector 100 to influence the lighting characteristics (e.g., intensity, color, pattern, on/off) of the LEDs 202.
• FIGURES 19A and 19B show a full color integrally formed LED light wire having three continuous conductors corresponding to conductive bus elements L1 , L2 and L3 which supply power to the LEDs 202, and conductor segments S1 and S2 connecting the LEDs 202 to conductive bus elements L1 , L2 and/or L3.
• the LEDs 202 are SMD-On-Board LEDs.
• each pixel may be controlled independently.
• FIGURE 24 shows the configuration of an individually controllable LED light wire using seven conductors and LED modules 2120.
• conductive bus element 80 acts as a power ground
• conductive bus element 81 acts as a voltage in.
• Each LED module 2120 includes a microprocessor, at least one LED, power input and output connections, control signal input and output connections, and data input and output connections.
• the LED modules 2120 include VCC pins, VDD pins, enable pins, clock pins and data pins.
• the control signal and data input connections of each LED module are coupled to the control signal and data input connections of an adjacent LED module.
• An optocoupler may be used to insulate the control signal line between each LED module.
• the LED modules 2120 may be connected in series (for example, as shown in FIGURE 24) or in parallel (for example, the power input connections of each LED module 2120 is coupled to the first conductive bus element 81 and the power output connection of each LED module 2120 is coupled to the second conductive bus element 80).
• a plurality of integrally formed LED light wires may be aligned side-by-side to form a lighting panel 3000 as shown in FIGURES 25A-25C.
• Each LED light wire may contain an interlocking alignment system comprising an alignment key 60, 62 and an alignment keyhole 61 , both of which are pre-formed in the encapsulant of the LED light wire, wherein the alignment key 60, 62 and the alignment keyhole
• the alignment key 60 is located at opposite sides of the LED light wire.
• the alignment keyhole 61 , 63 may be in the form of a notch, a groove, a recess, a slot, or an aperture, and the alignment key 60, 62 may be in a form (including, but without limitation, a rail or a peg) which permits a friction fit (preferably, a snug fit) to the alignment keyhole 61 , 63.
• the alignment key 60, 62 may have a width approximately equal to or slightly larger than the width of the alignment keyhole 61 , 63, such that the alignment key 60, 62 may fit therein in a friction fit, as shown in FIGURES 25B and 25C.
• the alignment keyhole 61 , 63 may be a groove being adapted to friction fit with a rail-shaped alignment key 60, 62, both groove-shaped alignment keyhole 61 , 63 and rail- shaped alignment 60 continuously extending longitudinally along the length of the LED light wire.

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• 2012
  • 2012-08-30 CN CN201210315967.XA patent/CN103591492A/zh active Pending
  • 2012-08-30 WO PCT/CN2012/080783 patent/WO2014026407A1/en active Application Filing
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