Method and system for feedback and control of a luminaire

Details Method and system for feedback and control of a luminaire Method and system for feedback and control of a luminaire

2006-06-26

2009-08-11

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S308000, C315S149000, C315S224000, C315S291000, C315S312000

Reexamination Certificate

active

07573210

ABSTRACT:
A method and system for controlling the chromaticity and luminous flux output of a digitally controlled luminaire. The luminaire includes one or more light-emitting elements and one or more light sensors for providing optical feedback, which is filtered to remove undesired frequencies. The method and system employs a control system which can sample the filtered signals from the light sensors according to a predetermined feedback sampling frequency scheme, wherein this scheme is specifically configured to provide sufficient iterations of the feedback loop to be performed for adjustment of the chromaticity and luminous flux output of the light-emitting elements, without perceptible visual flicker or momentary chromaticity shifts.

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