# US 2017/0284629 A1 · Lighting device

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- Number: US 2017/0284629 A1
- Document ID: US20170284629A1
- Status: Published application
- Kind: A1
- Application number: 15/505,552
- Filed: 2015-08-12
- Published: 2017-10-05
- Earliest claimed: 2014-08-22
- Assignees: LG Innotek Co., Ltd.
- Applicants: LG Innotek Co., Ltd.
- Inventors: Min Soo KANG
- Web page: https://patentgrep.com/patent/US20170284629A1

## 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)}
- F21V 3/00: Globes; Bowls; Cover glasses (with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506)
- F21V 5/04: of lens shape
- F21V 17/00: Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages (of light sources or light holders F21V19/00)
- F21V 19/003: {Fastening of light source holders, e.g. of circuit boards or substrates holding light sources}
- F21V 23/02: the elements being transformers, impedances {or power supply units, e.g. a transformer with a rectifier}
- F21Y 2105/12: characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
- F21Y 2105/16: square or rectangular, e.g. for light panels
- 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
- 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

An embodiment comprises: a housing comprising a lower plate and a side plate; a substrate arranged on the lower plate; a light-emitting module comprising light sources arranged on the substrate and spaced from each other; and a lens array unit comprising lenses arranged so as to correspond to the light sources. The light sources have different magnitudes of quantity of light, and the sizes of the lenses are proportional to the magnitudes of quantity of light of the corresponding light sources.

## Claims

### Claim 1

A lighting device comprising:
a housing including a lower plate and a side plate;
a light-emitting module including a substrate disposed on the lower plate and light sources disposed on the substrate; and
a lens array unit including lenses arranged corresponding to the light sources,
wherein sizes of the lenses are proportional to a quantity of light from the light sources,
the quantity of light from the light sources decreases moving away from a center line of the housing in a direction perpendicular to the center line of the housing,
wherein sizes of the lenses decrease moving away from the center line of the housing in the direction perpendicular to the center line of the housing, and
wherein a separation distance between adjacent light sources and a separation distance between adjacent lenses decrease moving away from the center line of the housing in the direction perpendicular to the center line of the housing.

### Claim 2 (depends on 1)

The lighting device according to claim 1, wherein separation distances between adjacent light sources are different from each other.

### Claim 3 (depends on 1)

The lighting device according to claim 1, wherein a center of each of the lenses is aligned with a center of a corresponding one of the light sources.

### Claim at position 4

-9. (canceled)

### Claim 10

A lighting device comprising:
a housing including a lower plate and a side plate;
a light-emitting module including a substrate disposed on the lower plate and light sources disposed on the substrate; and
a lens array unit including lenses arranged corresponding to the light sources,
wherein
the quantity of light from the light sources increases moving away from a center line of the housing in a direction perpendicular to the center line of the housing,
wherein sizes of the lenses increase moving away from the center line of the housing in the direction perpendicular to the center line of the housing, and
wherein a separation distance between adjacent light sources and a separation distance between adjacent lenses increase moving away from the center line of the housing in the direction perpendicular to the center line of the housing.

### Claim 11

(canceled)

### Claim 12

(canceled)

### Claim 13 (depends on 10)

The lighting device according to claim 10, wherein the angle of beam spread of light emitted from the lenses increases moving away from a center line of the housing in a direction perpendicular to the center line of the housing.

### Claim 14

(canceled)

### Claim 15 (depends on 10)

The lighting device according to claim 10, further comprising:
an optical sheet disposed on the lens array unit.

### Claim 16 (depends on 10)

The lighting device according to claim 10, wherein the lens array unit further includes a connection portion for connecting the lenses.

### Claim 17 (depends on 10)

The lighting device according to claim 10, wherein the light sources are arranged in a row or in a matrix form having rows and columns.

### Claim 18 (depends on 16)

The lighting device according to claim 16, wherein the connection portion is made of a same material as the lenses and is integrally formed with the lenses.

### Claim 19 (depends on 10)

The lighting device according to claim 10, further comprising:
a fixing unit disposed on the substrate in order to support the lens array unit.

### Claim 20

A lighting device comprising:
a housing including a lower plate and a side plate;
a light-emitting module including a substrate disposed on the lower plate and first light sources and second light sources disposed on the substrate, each of the second light sources being disposed between adjacent ones of the first light sources;
a lens array unit including first lenses arranged in alignment with the first light sources, second lenses arranged in alignment with the second light sources, and a connection portion for connecting the lenses; and
an optical sheet disposed on the lens array unit,
wherein a quantity of light from the first light sources is smaller than a quantity of light from the second light sources, separation distances between the first light sources and the second light sources adjacent to each other are identical to each other, and a size of each of the first lenses is smaller than a size of each of the second lenses, and
wherein separation distances between the first lenses and the second lenses adjacent to each other is the same as each other.

### Claim 21 (depends on 1)

The lighting device according to claim 1, wherein the angle of beam spread of light emitted from the lenses decreases moving away from a center line of the housing in a direction perpendicular to the center line of the housing.

### Claim 22 (depends on 1)

The lighting device according to claim 1, further comprising:
an optical sheet disposed on the lens array unit.

### Claim 23 (depends on 1)

The lighting device according to claim 1, wherein the lens array unit further includes a connection portion for connecting the lenses.

### Claim 24 (depends on 1)

The lighting device according to claim 1, wherein the light sources are arranged in a row or in a matrix form having rows and columns.

### Claim 25 (depends on 23)

The lighting device according to claim 23, wherein the connection portion is made of a same material as the lenses and is integrally formed with the lenses.

### Claim 26 (depends on 1)

The lighting device according to claim 1, further comprising:
a fixing unit disposed on the substrate in order to support the lens array unit.

### Claim 27 (depends on 1)

The lighting device according to claim 1, wherein the size of the lens is a diameter of the lens.

### Claim 28 (depends on 10)

The lighting device according to claim 10, wherein the size of the lens is a diameter of the lens.

### Claim 29 (depends on 10)

The lighting device according to claim 10, wherein sizes of the lenses are proportional to a quantity of light from the light sources.