Light emitting diode retrofit module for traffic signal lights

Details Light emitting diode retrofit module for traffic signal lights Light emitting diode retrofit module for traffic signal lights

2005-06-14

2005-06-14

O'Shea, Sandra (Department: 2875)

Illumination

Plural light sources

With modifier

C362S243000, C362S249070, C362S268000, C362S800000, C362S242000, C362S244000, C362S331000, C362S245000, C362S545000, C362S329000, C362S229000

Reexamination Certificate

active

06905227

ABSTRACT:
A high power LED lamp module for installation in conventional traffic signal lamps includes a housing with a side flange and a spacer ring extending therefrom, a plurality of LEDs disposed inside the housing for producing diverging light, a power supply disposed in the housing between the LEDs and the housing rear wall, a threaded electrical connector extending therefrom, and Fresnel/outer lenses extending across the open end of the spacer ring for collimating the diverging light from the LEDs. The Fresnel lens is disposed a first distance from the light emitting diodes wherein the light collimated thereby just fills and illuminates the entire outer lens. The flange is separated from the rear wall portion by a second distance that does not exceed about 100 mm or about 70mm for a 12 or 8 inch diameter lamp module respectively, to ensure the lamp module fits inside conventional traffic signal lamps.

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