Automatic momentary secondary light source assembly

Details Automatic momentary secondary light source assembly Automatic momentary secondary light source assembly

2007-08-07

2007-08-07

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S360000, C315S313000

Reexamination Certificate

active

10935769

ABSTRACT:
A secondary light assembly emits light into an area lit by a primary light source. The secondary light assembly includes a light sensor for sensing light emitted from the primary light source. A secondary light source is operatively connected to the light sensor. A controller is electrically connected to the light sensor and the secondary light source. The controller calculates a rate of change of light emission from the primary light source such that the controller turns the secondary light source on when the rate of change of light emission from the primary light source is above a predetermined rate threshold.

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