Patents by Inventor Logeeswaran Vj

Logeeswaran Vj 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).

  • Optical scanning using vibratory diffraction gratings
    Patent number: 7542188
    Abstract: An optical scanning apparatus includes an in-plane vibratory mass platform having at least one diffraction grating formed thereon as the scanning element, at least one flexure structure that connects the mass platform to at least one fixed support, and at least one driving actuator that drives the mass platform into an in-plane vibratory motion which can be rotational and/or translational. The apparatus may also be formed by a mass platform having at least one diffraction grating formed thereon as the scanning element, at least one driving actuator connected to the mass platform through at least one flexure structure. The driving actuator drives the mass platform into an in-plane vibratory motion.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: June 2, 2009
    Assignee: National University of Singapore
    Inventors: Guangya Zhou, Logeeswaran Vj, Fook Siong Chau
  • Optical scanning using vibratory diffraction gratings
    Publication number: 20050156481
    Abstract: An optical scanning apparatus includes an in-plane vibratory mass platform having at least one diffraction grating formed thereon as the scanning element, at least one flexure structure that connects the mass platform to at least one fixed support, and at least one driving actuator that drives the mass platform into an in-plane vibratory motion which can be rotational and/or translational. The apparatus may also be formed by a mass platform having at least one diffraction grating formed thereon as the scanning element, at least one driving actuator connected to the mass platform through at least one flexure structure. The driving actuator drives the mass platform into an in-plane vibratory motion.
    Type: Application
    Filed: December 23, 2004
    Publication date: July 21, 2005
    Inventors: Guangya Zhou, Logeeswaran Vj, Fook Siong Chau