Patents by Inventor Sandy To

Sandy To has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • LED automotive tail lamp set
    Patent number: 10132463
    Abstract: 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 array; redistribution occurs to form a light pattern meeting ECE requirements.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: November 20, 2018
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chi Fai Cheung, Sandy To, Wing Bun Lee, Jin Bo Jiang, Bo Wang
  • LED automotive fog lamp
    Patent number: 8011803
    Abstract: 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 optic axis of the corrugated surface.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: September 6, 2011
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chi Fai Cheung, Sandy To, Wing Bun Lee, Jin Bo Jiang, Wen Kui Wang
  • LED Automotive Fog Lamp
    Publication number: 20100226143
    Abstract: 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 optic axis of the corrugated surface.
    Type: Application
    Filed: March 6, 2009
    Publication date: September 9, 2010
    Applicant: HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Chi Fai Cheung, Sandy To, Wing Bun Lee, Jin Bo Jiang, Wen Kui Wang
  • LED automotive tail lamp set
    Publication number: 20100039830
    Abstract: 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 array; redistribution occurs to form a light pattern meeting ECE requirements.
    Type: Application
    Filed: August 18, 2008
    Publication date: February 18, 2010
    Applicant: The Hong Kong Polytechnic University
    Inventors: Chi Fai Cheung, Sandy To, Wing Bun Lee, Jin Bo Jiang, Bo Wang