Illumination – Edge lighted panel – Light source
Reexamination Certificate
2006-10-03
2006-10-03
Cariaso, Alan (Department: 2875)
Illumination
Edge lighted panel
Light source
C362S231000, C362S330000, C362S601000, C362S812000, C040S570000, C040S581000, C340S332000, C340S815450, C340S815560, C340S815650
Reexamination Certificate
active
07114840
ABSTRACT:
An exit sign comprising a housing and a plurality of red and green color LEDs having the capability of being selectively activated to produce either red light or green light. The plurality of LEDs are mounted in a mutual lighting association in the housing. A switch is manually operable to selectively activate the plurality of red color LEDs to produce the red light and in the alternative, to selectively activate of the plurality of the green color LEDs to produce the green light. Means for passing light from the selected red light or selected green light in the form of indicia symbolizing an exit enables viewing by an observer, such means include a stencil having four independent letters forming the word EXIT. DC circuitry is in operative electrical connection with the plurality of LEDs. A source of DC electrical power activates the DC circuitry. The plurality of LEDs can be monochrome red LEDs and monochrome green LEDs or in the alternative, the plurality of LEDs can be bicolor LEDs having the capability of producing red light or green light. Red light and green light can be simultaneously emitted so as to produce yellow light. An emergency power backup battery is connected to the plurality of color LEDS. Means for producing emergency light is optional.
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Cariaso Alan
Han Jason
LandOfFree
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