Dual LED/incandescent security fixture

Details Dual LED/incandescent security fixture Dual LED/incandescent security fixture

2005-06-21

2005-06-21

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

With signal, indicator, or alarm

Radiant energy responsive control type

C315S308000, C340S693110

Reexamination Certificate

active

06909239

ABSTRACT:
A dual LED and incandescent security lighting system uses a hybrid approach to LED illumination. It combines an ambient LED illuminator with a standard incandescent lamp on a motion control sensor. The LED illuminator will activate with the onset of darkness (daylight control) and typically remain on during the course of the night (“always on”). The LED illumination, typically amber, is sufficient to provide low to moderate level lighting coverage to the wall and ground area adjacent to and under the fixture. The incandescent lamp is integrated with a motion control circuit and sensor. When movement in the field of view is detected (after darkness), the incandescent lamp is switched on, providing an increased level of illumination to the area. Instead of an “always on” LED illuminator, the LEDs may also be switched off when the incandescent lamp is switched on.

REFERENCES:
patent: 5818338 (1998-10-01), Ferraro
patent: 5867099 (1999-02-01), Keeter
patent: 5946209 (1999-08-01), Eckel et al.
patent: 6078257 (2000-06-01), Ferraro
patent: 6121875 (2000-09-01), Hamm et al.
patent: 6151529 (2000-11-01), Batko
patent: 6320506 (2001-11-01), Ferraro
patent: 6741176 (2004-05-01), Ferraro

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