Patents by Inventor Kwong Sik CHAN

Kwong Sik CHAN 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).

  • Apparatus using reflective elements for aligning a lens module with an image sensor
    Patent number: 11012598
    Abstract: An apparatus for aligning a lens module with an image sensor to form a camera module includes a chart holder, a positioning unit and a reflective elements holder assembly. In use, the chart holder holds a test chart having a region of interest (ROI), the positioning unit holds the lens module and the image sensor, and the reflective elements holder assembly holds multiple reflective elements between the chart holder and the positioning unit. A first optical path from the ROI is directed to a first position on the image sensor. Second optical paths from the ROI are reflected by the reflective elements to respective second positions on the image sensor, the second positions being spaced from the first position. The images captured by the image sensor (arising from the aforementioned optical paths) are analysed and the positioning unit aligns the lens module with the image sensor based on such analysis.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: May 18, 2021
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Koon Sung Yeung, Po Lam Au, Fan Leuk Lai, Chi Piu Wong, Kwong Sik Chan
  • APPARATUS USING REFLECTIVE ELEMENTS FOR ALIGNING A LENS MODULE WITH AN IMAGE SENSOR
    Publication number: 20210058536
    Abstract: An apparatus for aligning a lens module with an image sensor to form a camera module includes a chart holder, a positioning unit and a reflective elements holder assembly. In use, the chart holder holds a test chart having a region of interest (ROI), the positioning unit holds the lens module and the image sensor, and the reflective elements holder assembly holds multiple reflective elements between the chart holder and the positioning unit. A first optical path from the ROI is directed to a first position on the image sensor. Second optical paths from the ROI are reflected by the reflective elements to respective second positions on the image sensor, the second positions being spaced from the first position. The images captured by the image sensor (arising from the aforementioned optical paths) are analysed and the positioning unit aligns the lens module with the image sensor based on such analysis.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 25, 2021
    Inventors: Koon Sung YEUNG, Po Lam AU, Fan Leuk LAI, Chi Piu WONG, Kwong Sik CHAN