Apparatus and method for switching a light source

Details Apparatus and method for switching a light source Apparatus and method for switching a light source

2005-08-26

2008-11-04

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Radiant energy controlled regulation of the current supply...

C315S159000, C315S153000, C315S154000

Reexamination Certificate

active

07446480

ABSTRACT:
An apparatus and its corresponding method for switching a light source are provided. The apparatus includes a light sensor, a decision device and a light source. The light sensor senses the ambient luminance and outputs a sensing signal to indicate whether the luminance is greater than a predetermined quantity. The decision device is connected to the light sensor. It receives a switching signal and outputs a lighting signal according to the sensing signal and the switching signal. The light source is coupled to the decision device and is activated whenever the lighting signal demands light.

REFERENCES:
patent: 4520681 (1985-06-01), Moore et al.
patent: 5708455 (1998-01-01), Maekawa
patent: 6089721 (2000-07-01), Schierbeek
patent: 7236154 (2007-06-01), Kerr et al.
patent: 2003/0198048 (2003-10-01), Frederick
patent: 2006/0133099 (2006-06-01), Thannikary et al.

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