LED assembly for a signage illumination
First Claim
1. A light emitting diode (LED) light source assembly for a sign in which a message thereon is made more apparent by illumination and wherein said assembly is external to the sign housing, said assembly comprising:
- a housing, said housing comprising a base and a generally transparent cover,at least one LED module operatively associated with said housing, said LED module including a planar LED array consolidated onto a single light emitting chip, said LED array configured to produce a light emission beam,said LED module including a heat dissipating fixture,said LED module including a light spreading system disposed between said base and said cover,wherein the improvement comprises;
said light spreading system including a traverse deflector supported over said LED array and at least partially within said light emission beam thereof.
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Accused Products
Abstract
An LED light source assembly for signage illumination includes one or more planar LED arrays located with respect to a light spreading system for uniformly distributing light onto a viewing surface. The light spreading system includes a plurality of reflectors in combination with a transverse deflector disposed directly above and in the light emanating path of a planar LED array. The transverse deflector is oriented angularly and projects at least a portion of light onto a lateral reflector of the light spreading system. In one embodiment, a heat dissipation fixture is supported external to a housing assembly for improved heat management. The LED arrays and the plurality of reflectors and transverse deflectors are affixed directly to the heat dissipation fixture.
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Citations
20 Claims
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1. A light emitting diode (LED) light source assembly for a sign in which a message thereon is made more apparent by illumination and wherein said assembly is external to the sign housing, said assembly comprising:
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a housing, said housing comprising a base and a generally transparent cover, at least one LED module operatively associated with said housing, said LED module including a planar LED array consolidated onto a single light emitting chip, said LED array configured to produce a light emission beam, said LED module including a heat dissipating fixture, said LED module including a light spreading system disposed between said base and said cover, wherein the improvement comprises; said light spreading system including a traverse deflector supported over said LED array and at least partially within said light emission beam thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A light emitting diode (LED) light source assembly for a sign in which a message thereon is made more apparent by illumination and wherein said assembly is external to the sign housing said assembly comprising:
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a housing, said housing comprising a base and a separable cover, said cover being generally transparent, at least one LED module operatively associated with said housing, said LED module including a planar LED array consolidated onto a single light emitting chip, said LED array configured to produce a light emission beam, said LED module including a heat dissipating fixture, said heat dissipating fixture attached directly to said LED array, said LED module including a light spreading system disposed between said base and said cover, said light spreading system including a bottom reflector and a low-angle lateral reflector, an LED driver electrically coupled to said LED module for controlling said LED array, said LED driver disposed between said cover and said base, and said light spreading system including a traverse deflector, said transverse deflector supported over said LED array and at least partially within said light emission beam thereof, said transverse deflector including at least one reflective surface directed toward said low-angle lateral reflector, said reflective surface of said transverse deflector being angularly supported relative to said base plate, said bottom reflector substantially shielding said LED driver from said light emission beam.
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20. A light emitting diode (LED) light source assembly for a sign in which a message thereon is made more apparent by illumination and wherein said assembly is external to the sign housing said assembly comprising:
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a housing, said housing comprising a base and a cover, said cover being generally transparent, said base comprising bottom and back panels, said bottom and back panels each being generally planar bodies, said bottom and back panels intersecting one another along an intersection line, at least one LED module operatively associated with said housing, said LED module including a planar LED array consolidated onto a single light emitting chip, said LED array configured to produce a light emission beam, said light emission beam emanating predominantly perpendicular to said back panel, said LED module including a heat dissipating fixture, said heat dissipating fixture attached directly to said LED array, said heat dissipating fixture made from a metallic material, said heat dissipating fixture including a plurality of cooling fins, said cooling fins being arranged parallel to one another and generally parallel to said intersection line, said heat dissipating fixture attached to said back panel and substantially covering said pass-through opening therein, said LED module including a light spreading system disposed between said base and said cover, said light spreading system including a top reflector and a bottom reflector and a lateral reflector, said top reflector disposed adjacent said LED array, said top reflector extending generally parallel to said intersection line, said bottom reflector disposed on the opposite side of said LED array from said top reflector, said bottom reflector extending generally parallel to said intersection line, said lateral reflector disposed adjacent said LED array, said lateral reflector extending generally perpendicular to said intersection line, an LED driver electrically coupled to said LED module for controlling said LED array, said LED driver disposed between said cover and said base, said LED driver mounted to said bottom panel, a mounting bracket affixed to said housing wherein the improvement comprises; said light spreading system including a traverse deflector, said transverse deflector disposed adjacent said LED array, said transverse deflector being supported over said LED array and at least partially within said light emission beam thereof, said transverse deflector deflecting, at least 50% of all light emanating in a normal direction from said LED array, said transverse deflector including at least one reflective surface directed toward said lateral reflector, said reflective surface of said transverse deflector being angularly supported relative to said base plate, said bottom reflector substantially shielding said LED driver from said light emission beam, said back panel having a pass-through opening therein, said LED array disposed generally within said pass-through opening in said back panel.
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Specification