Patents by Inventor Quazi T. Islam

Quazi T. Islam 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).

  • Off-axis holographic light concentrator and method of use thereof
    Patent number: 7298534
    Abstract: A light receiving apparatus comprises a holographic optical device having a plurality of holograms recorded in a light receiving surface thereof. The holographic optical device is configured to diffract light of a predetermined wavelength incident thereon from different directions onto a common focal area. The holographic optical device is shaped such that a first vector normal to the light receiving surface at a first location thereon is oriented along a first direction and such that a second vector normal to the light receiving surface at a second location thereon is oriented along a second direction, the second direction being different from the first direction.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: November 20, 2007
    Assignee: Philip Morris USA Inc.
    Inventor: Quazi T. Islam