Electric lamp and discharge devices: systems – Current and/or voltage regulation – Plural load device regulation
Reexamination Certificate
2011-06-21
2011-06-21
Le, Don P (Department: 2819)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Plural load device regulation
C315S127000
Reexamination Certificate
active
07965048
ABSTRACT:
A light emitting apparatus comprises a light emitting element and a switching converter comprising a conversion circuit for converting an operating electric signal to generate the driving electric signal, a feedback circuit having a light detecting element for detecting a luminous intensity of the light emitting element and generating a feedback signal, and a control circuit for receiving the feedback signal, comparing the received feedback signal with a reference electric signal, and controlling the conversion circuit based on comparison results to adjust the driving electric signal. Alternatively, the light detecting element detects ambient light and the control circuit controls the conversion circuit based on comparison results to stop or enable outputting of the driving electric signal.
REFERENCES:
patent: 6095661 (2000-08-01), Lebens et al.
patent: 6611610 (2003-08-01), Stam et al.
patent: 7511695 (2009-03-01), Furukawa et al.
patent: 7638754 (2009-12-01), Morimoto et al.
patent: 7740371 (2010-06-01), Lebens et al.
Lin Yuh-Min
Shih Cheng-Chung
Capella Microsystems Corp.
King Anthony
Le Don P
WPAT, P.C.
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