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Shuy; Geoffrey Wen-Tai
New Territories, HK
No. of patents:

Patent Number Title Of Patent Date Issued
8143793 Device and method for periodic diode actuation March 27, 2012
An energy efficient illumination device is provided in which energy consumption is reduced by using a pulse generating circuit which provides power to LEDs in short pulses, and in which the circuit has a lifespan which is comparable to that of an LED. The illumination device includes a
7593229 Heat exchange enhancement September 22, 2009
A heat exchange structure includes elongated air ducts. Each air duct has a first opening and a second opening at two ends of the air duct to allow air to enter and exit the air duct, respectively. The heat exchange structure includes an exterior heat exchange surface and interior heat
7586271 Efficient lighting September 8, 2009
A light source includes a plurality of lighting elements arranged to illuminate different regions of visual perception. Circuitry coupled to the light source is configured to supply power to a first subset of the lighting elements according to a first waveform and to a second subset of
7440280 Heat exchange enhancement October 21, 2008
A heat exchange structure includes a plurality of elongated air ducts. The heat exchange structure has an exterior heat exchange surface and interior heat exchange surfaces, the interior surfaces being in the elongated air ducts. The heat exchange structure includes a plurality of he

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