Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2007-11-13
2007-11-13
Tran, Thuy Vinh (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S360000, C315S362000
Reexamination Certificate
active
11414455
ABSTRACT:
A method for efficient lighting includes supplying power to a light source to control the intensity of light emitted from the light source according to an intensity waveform. The amplitude of the waveform over one period is at a high level for a first time interval and at or below a low level for a second time interval. The method includes selecting durations of the first time interval according to a first characteristic of human visual perception and selecting the second time interval according to a second characteristic of human visual perception.
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Fish & Richardson P.C.
Hong Kong Applied Science and Technology Research Institute Co.
Tran Thuy Vinh
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