Patents by Inventor Tock Han Lim

Tock Han Lim 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).

  • Patent number: 11116393
    Abstract: The present disclosure generally relates to automated method and system for vision assessment of a subject. The method comprises: determining a set of test patterns for the subject based on a preliminary assessment of an eye of the subject; displaying the set of test patterns sequentially to the subject; collecting data on the subject's gaze in response to each test pattern displayed to the subject; and assessing vision functionality of the subject based on the collected gaze data.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 14, 2021
    Assignees: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, TAN TOCK SENG HOSPITAL PTE LTD
    Inventors: Huiying Liu, Augustinus Laude, Tock Han Lim, Yanwu Xu, Wing Kee Damon Wong, Jiang Liu
  • Publication number: 20190110678
    Abstract: The present disclosure generally relates to automated method and system for vision assessment of a subject. The method comprises: determining a set of test patterns for the subject based on a preliminary assessment of an eye of the subject; displaying the set of test patterns sequentially to the subject; collecting data on the subject's gaze in response to each test pattern displayed to the subject; and assessing vision functionality of the subject based on the collected gaze data.
    Type: Application
    Filed: March 31, 2017
    Publication date: April 18, 2019
    Inventors: Huiying LIU, Augustinus LAUDE, Tock Han LIM, Yanwu XU, Wing Kee Damon WONG, Jiang LIU
  • Publication number: 20180104106
    Abstract: The present invention relates to a system for displaying a video image to a user having a visual impairment. The system comprises a video camera, a data storage device, a processor and an image display device for displaying processed images in a display region. The processor is operative to perform at least one of the operations of (i) including in the display region, a marker at a location offset from a centre of the display region, whereby if the user, who suffers from blurred vision at the centre of the user's visual field, looks at the marker, the user sees the captured image in focus; or (ii) deforming a portion of the captured image by a correction matrix, whereby, upon displaying the processed images by the display device, the correction matrix corrects a deformation in a corresponding portion of the visual field of the user due to the visual impairment.
    Type: Application
    Filed: May 12, 2016
    Publication date: April 19, 2018
    Inventors: Beng Hai LEE, Jiang LIU, Wing Kee Damon WONG, Ai Ping YOW, Tock Han LIM, Augustinus LAUDE
  • Patent number: 7876025
    Abstract: A tubular piezoelectric transducer comprising a tube of piezoelectric material and having a plurality of external electrodes for inducing in a first end of the tube at least one movement of a plurality of possible movements; at least two spokes attached to and extending radially inwardly of the tube for movement with the first end; a hub at an inner end of the at least two spokes and being located on the longitudinal axis of the tube, the hub being attached to the at least two spokes for movement therewith; the hub being for receiving therein a probe for movement of the probe with the hub. A phaco-probe incorporating the transducer is also disclosed.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: January 25, 2011
    Assignees: Nanyang Technological University, Tan Tock Seng Hospital
    Inventors: Jan Ma, Freddy Y. C. Boey, Tock Han Lim
  • Publication number: 20080315720
    Abstract: A tubular piezoelectric transducer comprising a tube of piezoelectric material and having a plurality of external electrodes for inducing in a first end of the tube at least one movement of a plurality of possible movements; at least two spokes attached to and extending radially inwardly of the tube for movement with the first end; a hub at an inner end of the at least two spokes and being located on the longitudinal axis of the tube, the hub being attached to the at least two spokes for movement therewith; the hub being for receiving therein a probe for movement of the probe with the hub. A phaco-probe incorporating the transducer is also disclosed.
    Type: Application
    Filed: September 7, 2006
    Publication date: December 25, 2008
    Inventors: Jan Ma, Freddy Y.C. Boey, Tock Han Lim