# US 2014/0153237 A1 · Light source module

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- Number: US 2014/0153237 A1
- Document ID: US20140153237A1
- Status: Published application
- Kind: A1
- Application number: 13/873,254
- Filed: 2013-04-30
- Published: 2014-06-05
- Earliest claimed: 2012-12-04
- Assignees: Wintek Corporation; Dongguan Masstop Liquid Crystal Display Co., Ltd.
- Applicants: Wintek Corporation; Dongguan Masstop Liquid Crystal Display Co., Ltd.
- Inventors: Zhi-Ting Ye; Ming-Chuan Lin
- Web page: https://patentgrep.com/patent/US20140153237A1

## CPC

- F21V 5/007: {Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane (combination of two or more refractors F21V5/008)}
- F21K 9/69: Details of refractors forming part of the light source
- F21Y 2103/10: comprising a linear array of point-like light-generating elements
- F21Y 2107/30: on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
- F21Y 2115/10: Light-emitting diodes [LED]
- 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
- 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

## Abstract

A light source module is disclosed and includes a carrier, a light-emitting unit, and a lens. The light-emitting unit is disposed on the carrier and has a light-emitting surface. The lens is disposed above the light-emitting unit and has bottom surface and a tapered top surface opposite to the bottom surface. The bottom surface is opposite right to the light-emitting surface. A gap exists between the bottom surface and the light-emitting surface. Therefore, beams emitted by the light-emitting unit are modulated by the lens to be mostly concentrated relatively in a specific radiation angle range and distributed more uniform within the specific radiation angle range, which is conducive to reduction of the glare degree of the light source module.

## Claims

### Claim 1

A light source module, comprising:
a carrier;
a first light-emitting unit disposed on the carrier and having a first light-emitting surface; and
a first lens disposed above the first light-emitting unit and having a first bottom surface and a first tapered top surface opposite to the first bottom surface, the first bottom surface being opposite right to the first light-emitting surface, a gap existing between the first bottom surface and the first light-emitting surface.

### Claim 2 (depends on 1)

The light source module of claim 1, wherein the first tapered top surface is substantially a side surface of a cone or a pyramid.

### Claim 3 (depends on 2)

The light source module of claim 2, wherein the first tapered top surface has a vertex angle within a range from 140 to 160 degrees.

### Claim 4 (depends on 1)

The light source module of claim 1, further comprising a second light-emitting unit and a second lens, the second light-emitting unit being disposed on the carrier and having a second light-emitting surface, the second lens being disposed above the second light-emitting unit, the second lens having a second bottom surface and a second tapered top surface opposite to the second bottom surface, the second bottom surface being opposite right to the second light-emitting surface, a gap existing between the second bottom surface and the second light-emitting surface.

### Claim 5 (depends on 4)

The light source module of claim 4, wherein the first lens and the second lens are formed in one piece.

### Claim 6 (depends on 4)

The light source module of claim 4, wherein the first light-emitting unit and the second light-emitting unit are disposed to be adjacent on a surface of the carrier.

### Claim 7 (depends on 4)

The light source module of claim 4, wherein the carrier is a columnar object and has a first side surface and a second side surface adjacent to the first side surface, the first light-emitting unit is disposed on the first side surface, and the second light-emitting unit is disposed on the second side surface.

### Claim 8 (depends on 1)

The light source module of claim 1, further comprising a plurality of second light-emitting units and a plurality of second lenses, wherein the carrier is a columnar object and has a plurality of side surfaces connected in ring, the first light-emitting unit and the second light-emitting units are disposed in ring on the side surfaces, the second lenses are disposed above the second light-emitting units respectively, each second light-emitting unit has a second light-emitting surface, each second lens has a second bottom surface and a second tapered top surface opposite to the second bottom surface, each second bottom surface is opposite right to the corresponding second light-emitting surface, and a gap exists between each second bottom surface and the corresponding second light-emitting surface.

### Claim 9 (depends on 8)

The light source module of claim 8, wherein the first lens and the second lenses are formed in one piece.

### Claim 10 (depends on 1)

The light source module of claim 1, wherein the carrier comprises a circuit board, and the first light-emitting unit is a light-emitting diode device electrically connected onto the circuit board.