Patents by Inventor Lin Seng Ong

Lin Seng Ong 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 wavefront sensor and optical wavefront sensing method
    Patent number: 8158917
    Abstract: An optical wavefront sensor comprising a light manipulation device; a detector for detecting light signals having been subjected to the light manipulation device; and a controller coupled to the manipulation device, the controller controlling the manipulation device to function as a lenslet array, each lenslet of the array focussing an incident portion of a wavefront onto the detector. The controller may also control the distance between the detector and the manipulation device. The spatial resolution of Shack-Hartmann sensors can be increased by digital scanning the wavefront with the manipulation device. The wavefront sensing can be dynamic adaptive by setting of parameters of the manipulation device.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: April 17, 2012
    Assignee: Agency for Science Technology and Research
    Inventors: Xiang Li, Liping Zhao, Zhong Ping Fang, Krishna Asundi Anand, Lin Seng Ong, Herawan Rinov
  • OPTICAL WAVEFRONT SENSOR
    Publication number: 20090152453
    Abstract: An optical wavefront sensor comprising a light manipulation device; a detector for detecting light signals having been subjected to the light manipulation device; and a controller coupled to the manipulation device, the controller controlling the manipulation device to function as a lenslet array, each lenslet of the array focussing an incident portion of a wavefront onto the detector. The controller may also control the distance between the detector and the manipulation device. The spatial resolution of Shack-Hartmann sensors can be increased by digital scanning the wavefront with the manipulation device. The wavefront sensing can be dynamic adaptive by setting of parameters of the manipulation device.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 18, 2009
    Inventors: Xiang Li, Liping Zhao, Zhong Ping Fang, Krishna Asundi Anand, Lin Seng Ong, Herawan Rinov
  • Method and apparatus for imaging latent fingerprints
    Patent number: 7154661
    Abstract: The present invention relates to a method and apparatus for clearly imaging samples such as fingerprints on substrates of forensic samples. The present invention overcomes the problems of the Laser-Induced-Fluorescence (LIF) technique to distinguish fluorescence from the sample from that of the substrate. The method of the present invention uses either a homodyne- or a heterodyne-assisted phase resolving method, or both, to suppress the contribution of the substrate fluorescence. The resulting image of the sample will then be sufficiently clear for forensic purposes. The present invention may also be used on histological and biochemical samples to visualise latent images.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: December 26, 2006
    Assignee: Nanyang Technological University
    Inventors: Leong Keey Seah, Murukeshan Vadake Matham, Lin Seng Ong, Zhixia Chao, Dinish Unnimadhava Kurup Soudamini Amma, Sock Koon Ong