# US 7,744,252 B2 · Sustainably constructed heat dissipating integrated lighting surface

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- Number: US 7,744,252 B2
- Document ID: US7744252B2
- Status: Granted
- Kind: B2
- Application number: 12/192,506
- Filed: 2008-08-15
- Published: 2010-02-18
- Granted: 2010-06-29
- Earliest claimed: 2008-08-15
- Assignees: Lighting Science Group Corporation
- Inventors: Fredric S. Maxik
- Web page: https://patentgrep.com/patent/US7744252B2

## CPC

- B32B 29/002: {as the main or only constituent of a layer, which is next to another layer of the same or of a different material (next to a layer of a particular substance B32B9/06; next to a bituminous or tarry layer B32B11/06; next to a water-setting substance layer B32B13/08; next to a metal layer B32B15/12; next to a glass layer B32B17/065; next to a layer formed of natural mineral fibres or particles B32B19/046; next to a wood layer B32B21/06; next to a cellulosic plastic layer B32B23/06; next to a natural or synthetic rubber layer B32B25/06; next to a synthetic resin layer B32B27/10)}
- A47B 96/021: {Structural features of shelf bases}
- A47F 11/00: Arrangements in shop windows, {shop floors} or show cases
- B32B 3/12: characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
- B32B 3/30: characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)}
- B32B 5/024: {Woven fabric}
- B32B 5/26: another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 9/005: {comprising one layer of ceramic material, e.g. porcelain, ceramic tile (layered products with at least two ceramic layers composed mainly of ceramic B32B18/00)}
- B32B 15/14: next to a fibrous or filamentary layer
- B32B 15/20: comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)}
- B32B 17/04: bonded with or embedded in a plastic substance
- B32B 27/20: using fillers, pigments, thixotroping agents
- B32B 27/281: {comprising polyimides}
- B32B 27/36: comprising polyesters
- B32B 27/38: comprising epoxy resins
- B32B 27/40: comprising polyurethanes
- E04C 2/26: composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups {(of cement and mineral fibres E04C2/04)}
- E04C 2/365: {by honeycomb structures}
- F21S 45/47: Passive cooling, e.g. using fins, thermal conductive elements or openings
- F21V 29/87: Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
- F21V 29/89: Metals
- F21V 33/0012: {Furniture (hospital beds F21V33/0072)}
- F21V 33/006: {General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols}
- A47B 2200/0019: Auxiliary use of table underframes, e.g. incorporating: cooling, drainage, air supply or wires
- B32B 2262/101: Glass fibres
- B32B 2262/106: Carbon fibres, e.g. graphite fibres
- B32B 2307/302: Conductive
- B32B 2307/40: having particular optical properties
- B32B 2307/412: Transparent
- B32B 2457/00: Electrical equipment
- F21W 2131/301: for furniture
- F21Y 2115/10: Light-emitting diodes [LED]
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- A47B: TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE (furniture jointing F16B)
- A47F: SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S)
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- 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 lighted heat dissipating panel made of sustainable renewable materials such as recycled aluminum and soy-based urethane, for use in architectural or shelving applications. The panel may be flat, rectangular, curvilinear, or of varying cross section so as to include any three-dimensional shape as desired. Lightweight materials such as carbon fiber, fiberglass, resin, soy-based urethane, and similar materials are used in combination with thermally conductive structural materials, such as expanded aluminum honeycomb, preferably fabricated from recycled aluminum, to provide a stiff, lightweight, machinable, moldable, and thermally conductive panel for use with lighting elements. Lighting elements are housed within the panel, providing illumination as desired. Heat is transferred from the lighting elements through the panel to the supporting structure and radiated from the panel itself, providing cooling effect for the lighting elements, reducing the temperature in the immediate vicinity of the lighting elements and providing for longer lighting element life.

## Claims

### Claim 1

A lighted heat dissipating panel, comprising
a heat dissipating panel comprising an expanded aluminum honeycomb structure substantially filled with glass-carbon material, said heat dissipating panel having a top surface and a bottom surface, and further having at least one groove for accepting a lighting element assembly, said groove having a bottom surface and an opening, and said heat dissipating panel further having a first mounting edge and a second mounting edge;
at least one lighting element assembly comprising a printed circuit board substrate having a first surface and a second surface, said printed circuit board first surface comprising conductive traces in electrical communication with at least one lighting emitting diode, and wherein said printed circuit board second surface is attached to said groove bottom surface; and
a plurality of ball detent assemblies retainingly engaged in said first mounting edge, and a plurality of ball detent assemblies retainingly engaged in said second mounting edge, said ball detent assemblies in electrical communication with said light emitting diodes.

### Claim 2 (depends on 1)

The lighted heat dissipating panel of claim 1, wherein said aluminum is recycled aluminum.

### Claim 3 (depends on 2)

The lighted heat dissipating panel of claim 2, wherein said top surface further comprises at least one layer of structural cloth selected from the group consisting of fiberglass and carbon fiber, wherein said structural cloth is bonded to said top surface by a bonding agent selected from the group consisting of epoxy resin, ester resin, urethane, and soy-based urethane, and wherein said bottom surface further comprises at least one layer of structural cloth selected from the group consisting of fiberglass and carbon fiber, wherein said structural cloth is bonded to said bottom surface by a bonding agent selected from the group consisting of epoxy resin, ester resin, urethane, and soy-based urethane.

### Claim 4 (depends on 3)

The lighted heat dissipating panel of claim 3, wherein said light emitting diode is an organic light emitting diode.

### Claim 5 (depends on 1)

The lighted heat dissipating panel of claim 1, further comprising a transparent window enclosing said groove opening.

### Claim 6 (depends on 1)

The lighted heat dissipating panel of claim 1, wherein said top surface further comprises at least one layer of structural cloth selected from the group consisting of fiberglass and carbon fiber, wherein said structural cloth selected from the group consisting of fiberglass and carbon fiber, wherein said structural cloth is bonded to said top surface by a bonding agent selected from the group consisting of fiberglass and carbon fiber, wherein said structural cloth is bonded to said bottom surface by a bonding agent selected from the group consisting of epoxy resin, ester resin, urethane, and soy-based urethane.

### Claim 7 (depends on 6)

The lighted heat dissipating panel of claim 6, wherein said light emitting diode is further comprised of surface mount packaging.