# US 9,518,709 B2 · Lighting article comprising embedded LED strip and method thereof

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- Number: US 9,518,709 B2
- Document ID: US9518709B2
- Status: Granted
- Kind: B2
- Application number: 14/320,624
- Filed: 2014-06-30
- Published: 2015-03-19
- Granted: 2016-12-13
- Earliest claimed: 2014-06-30
- Assignees: Ningbo Suntec Lighting Co., Ltd
- Applicants: Zhaowei Wang; Haisheng Tang
- Inventors: Zhaowei Wang; Haisheng Tang
- Web page: https://patentgrep.com/patent/US9518709B2

## CPC

- F21V 19/002: {the fastening means engaging the encapsulation or the packaging of the semiconductor device}
- F21K 9/20: Light sources comprising attachment means
- F21K 9/60: Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21S 4/28: rigid, e.g. LED bars
- B29C 39/10: incorporating preformed parts or layers, e.g. casting around inserts or for coating articles {(coating a surface by casting in general B05D1/30, B29C39/126 takes precedence)}
- B29K 2101/12: Thermoplastic materials
- B29K 2105/0058: {Liquid or visquous}
- B29L 2031/747: {Lightning equipment}
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

The present invention provides a lighting article such as holiday decorations and lamps e.g. a glowing Santa Claus, and a method of preparing such articles. The lighting article comprises an elongated structure resembling an image such as Santa. A solid matrix embedded with a LED strip is fitted into a groove in the elongated structure. The light emitted from the strip irradiates upon the elongated structure, and makes Santa Claus shining.

## Claims

### Claim 1

A lighting article comprising (1) an elongated structure having a groove along the elongation direction, (2) a solid matrix fitted into the groove, wherein 60-98% percent of the surface area of the solid matrix is chemically bonded to the elongated structure, and (3) a light-emitting strip embedded in the solid matrix;
wherein the light-emitting strip comprises two or more light-emitting diodes each of which is encapsulated with an encapsulant; and
wherein the light refractive indexes of the elongated structure, the solid matrix and the encapsulant are R1, R2 and R3 respectively, and R1>R3>R2.

### Claim 2 (depends on 1)

The lighting article according to claim 1, wherein 70-98% percent of the surface area of the solid matrix is chemically bonded to the elongated structure.

### Claim 3 (depends on 1)

The lighting article according to claim 1, wherein 80-98% percent of the surface area of the solid matrix is chemically bonded to the elongated structure.

### Claim 4 (depends on 1)

The lighting article according to claim 1, wherein at least 80% of the total light output emitted from the article has passed continuously through the encapsulant, the solid matrix and the elongated structure.

### Claim 5 (depends on 1)

The lighting article according to claim 1, further comprising one or more vacuum suction cups for mounting the elongated structure on a smooth surface.

### Claim 6 (depends on 1)

The lighting article according to claim 1, wherein R2 is in the range from 1.30-1.49, and R1 and R3 are independently of each other in the range from 1.50 to 1.70.

### Claim 7 (depends on 6)

The lighting article according to claim 6, wherein R2=1.43, R1=1.58, and R3=1.546.

### Claim 8 (depends on 1)

The lighting article according to claim 1, wherein the encapsulant, the solid matrix and the elongated structure are independently of each other made of a transparent material.

### Claim 9 (depends on 1)

The lighting article according to claim 1, wherein the encapsulant, the solid matrix and the elongated structure are independently of each other comprises a material selected from the group consisting of silicone resin, polycarbonate resin, phenol formaldehyde resin, epoxy resin, acrylonitrile butadiene styrene (ABS), polyester resin, polyethylene, polypropylene, polystyrene, acrylic resin, polyethylene terephthalate, polyethylene terenaphthalate, polybutylene terephthalate, polyethersulfone, polyetheretherketone, polyimide, polyetherimide, cellulose triacetate resin, polyacrylate resin, polysulfone resin, a fluoride resin, polyvinyl acetate, alkyd resin, polyurethane resin, vinyl chloride resin, polybutyl methacrylate, polymethyl methacrylate (PMMA), parylene, fluorinated polymer, polyphthalamide (PPA), quartz, glass, silica, alumina, and mixture thereof.

### Claim 10 (depends on 9)

The lighting article according to claim 9, wherein the encapsulant, the solid matrix and the elongated structure are independently of each other comprises a refractive index modifier.

### Claim 11 (depends on 1)

The lighting article according to claim 1, wherein the elongated structure comprises a material selected from the group consisting of polycarbonate resin, acrylonitrile butadiene styrene (ABS), polymethylmethacrylate (PMMA), acrylic resin, polyester resin, a silicone resin, polypropylene resin, glass, silica, and alumina.

### Claim 12 (depends on 1)

The lighting article according to claim 1, wherein the encapsulant comprises a material selected from the group consisting of silicone resin, epoxy resin, glass resin, acrylics, and polyimides.

### Claim 13 (depends on 1)

The lighting article according to claim 1, wherein the solid matrix comprises epoxy resin or phenol formaldehyde resin.

### Claim 14 (depends on 1)

The lighting article according to claim 1, wherein the light-emitting strip further comprises an additional electronic component to control the lighting effect of the diodes.

### Claim 15 (depends on 14)

The lighting article according to claim 14, wherein the additional electronic component is a flash control integrated circuit (IC).

### Claim 16 (depends on 1)

The lighting article according to claim 1, which emits light of different colors in a variable manner.

### Claim 17 (depends on 1)

The lighting article according to claim 1, wherein the encapsulant, the solid matrix and the elongated structure are independently of each other doped with phosphor particles.

### Claim 18

A process of producing a lighting article, comprising
(i) providing an elongated structure having a groove along the elongation direction;
(ii) placing a light-emitting strip inside the groove, wherein the light-emitting strip comprises two or more light-emitting diodes each of which is encapsulated with an encapsulant;
(iii) filling the groove with a liquid material so that light-emitting strip is immersed in the liquid material; and
(iv) solidifying the liquid material into a solid matrix so that the light-emitting strip is embedded in said solid matrix, and the solid matrix is fitted into the groove with 60-98% percent of the surface area thereof being chemically bonded to the elongated structure, wherein the light refractive indexes of the elongated structure, the solid matrix and the encapsulant are R1, R2 and R3 respectively, and R1>R3>R2.