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Chi Fai Cheung, Sandy To, Wing Bun Lee, Jin Bo Jiang, Wen Kui Wang: LED automotive fog lamp. The Hong Kong Polytechnic University, George G Wang, Wilkinson & Grist, September 6, 2011: US08011803 (6 worldwide citation)

A fog lamp may include a Lambertian LED, a collimating lens encompassing the Lambertian LED, a collimating surface including a total internal reflective surface and encompassing the collimating lens, and a corrugated surface attached to the collimating surface at an acute angle with respect to an op ...


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Chi Fai Cheung, Sandy To, Wing Bun Lee, Jin Bo Jiang, Wen Kui Wang: LED Automotive Fog Lamp. Hong Kong Polytechnic University, Wilkinson & Grist, September 9, 2010: US20100226143-A1

A fog lamp may include a Lambertian LED, a collimating lens encompassing the Lambertian LED, a collimating surface including a total internal reflective surface and encompassing the collimating lens, and a corrugated surface attached to the collimating surface at an acute angle with respect to an op ...


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Chi Fai Cheung, Sandy To, Wing Bun Lee, Jin Bo Jiang, Bo Wang: LED automotive tail lamp set. The Hong Kong Polytechnic University, Sonnenschein Nath & Rosenthal, February 18, 2010: US20100039830-A1

The present invention relates to LED lamps suitable for forming automotive lighting systems, made of high power lambertian LEDs and a TIR collimator lens. In the present invention, a novel TIR collimator lens is developed to collect the light emitted from the LED source and through a pillow lens arr ...


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