# US 7,607,812 B2 · Light-emitting diode panel fixture

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- Number: US 7,607,812 B2
- Document ID: US7607812B2
- Status: Granted
- Kind: B2
- Application number: 11/797,581
- Filed: 2007-05-04
- Published: 2007-11-08
- Granted: 2009-10-27
- Earliest claimed: 2006-05-05
- Inventors: Steven Kim
- Web page: https://patentgrep.com/patent/US7607812B2

## CPC

- F21V 29/87: Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
- F21S 8/033: {the surface being a wall or like vertical structure, e.g. building facade}
- F21S 8/037: {for mounting in a corner, i.e. between adjacent walls or wall and ceiling}
- F21V 33/0012: {Furniture (hospital beds F21V33/0072)}
- G02B 6/0018: {Redirecting means on the surface of the light guide}
- G02B 6/0051: {Diffusing sheet or layer}
- F21V 23/026: {Fastening of transformers or ballasts}
- 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
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- 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-emitting diode panel fixture including a light guide panel, a light-emitting diode strip at an edge of the light guide panel, a base encompassing the light-emitting diode strip and attached to the light guide panel, and a trim attached to the base.

## Claims

### Claim 1

A light-emitting diode panel fixture, comprising:
a light guide panel;
a light-emitting diode strip at an edge of the light guide panel;
a front diffusion cover on the light guide panel;
a base encompassing the light-emitting diode strip and top edges of both the light guide panel and the front diffusion cover such that the light-emitting diode strip and the top edges are recessed within the base;
wires protruding from the base;
a power converter connected to the wires; and
a trim having the appearance of crown molding attached to the base for covering the wiring and the power converter.

### Claim 2 (depends on 1)

The light-emitting diode panel fixture of claim 1, further comprising a back mirror on the light guide panel.

### Claim 3 (depends on 2)

The light-emitting diode panel fixture of claim 2, wherein the back mirror has a top edge within the base.

### Claim 4 (depends on 1)

The light-emitting diode panel fixture of claim 1, wherein the front diffusion cover overhangs a side of the light guide panel.

### Claim 5 (depends on 1)

The light-emitting diode panel fixture of claim 1, wherein the front diffusion cover is offset from the light guide panel so as to expose a portion of the light guide panel along a side of the light guide panel.

### Claim 6

A light-emitting diode panel fixture, comprising:
a light guide panel;
a light-emitting diode strip at an edge of the light guide panel;
a front diffusion cover on the light guide panel;
a base encompassing the light-emitting diode strip and attached to the light guide panel such that a top edge of the light guide panel is within the base;
a back mirror on the light guide panel;
wires protruding from the base;
a trim attached to the base for covering the wiring; and
wherein the front diffusion cover is offset from the light guide panel so as to expose a portion of the light guide panel at a first side of the light guide panel and overhangs a second side of the light guide panel opposite to the first side.

### Claim 7 (depends on 6)

The light-emitting diode panel fixture of claim 6, wherein the base has internal surfaces reflecting light from the light-emitting diode strip toward the light guide panel.

### Claim 8 (depends on 6)

The light-emitting diode panel fixture of claim 6, wherein the back mirror has a top edge within the base.

### Claim 9

A light-emitting diode panel fixture, comprising:
a light guide panel;
a light-emitting diode strip at an edge of the light guide panel;
a front diffusion cover on the light guide panel;
a base encompassing the light-emitting diode strip such that the light-emitting diode strip is recessed within the base and attached to the light guide panel, wherein the base is a heat conductive material and has internal surfaces reflecting light from the light-emitting diode strip toward the light guide panel;
a lip protruding from the base above and out away from the light guide panel along an edge of the base adjacent to the front diffusion cover to dissipate heat away from the light-emitting diode strip;
wires protruding from the base; and
a trim attached to the base along the lip for covering the wiring.

### Claim 10 (depends on 9)

The light-emitting diode panel fixture of claim 9, wherein the front diffusion cover is on a first surface of the light guide panel and a back mirror is on a second surface of the light guide panel opposite to the first surface.

### Claim 11 (depends on 10)

The light-emitting diode panel fixture of claim 10, wherein the front diffusion cover overhangs a first side of the light guide panel.

### Claim 12 (depends on 11)

The light-emitting diode panel fixture of claim 11, wherein the front diffusion cover is offset from the light guide panel so as to expose a portion of the light guide panel along a second side of the light guide panel opposite to the first side of the light guide panel.

### Claim 13 (depends on 10)

The light-emitting diode panel fixture of claim 10, wherein the front diffusion cover is offset from the light guide panel so as to expose a portion of the light guide panel along a side of the light guide panel.