Patents by Inventor Ling-Ben Yu

Ling-Ben Yu 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).

  • Laser distance measuring system with a shutter mechanism
    Patent number: 7471377
    Abstract: A laser distance measuring system includes an object lens, a beam splitter, a transmitter, a receiver, and a shutter mechanism. The beam splitter is disposed at one side of the object lens. The transmitter emits a laser beam that is split by the beam splitter into a measurement beam and a reference beam. The measurement beam passes through the object lens, and is reflected by an object to result in a reflected measurement beam passing through the object lens. The receiver is disposed to receive the reflected measurement beam and the reference beam. The shutter mechanism includes a beam masker operable to move to either block path of the reflected measurement beam to the receiver or path of the reference beam to the receiver.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: December 30, 2008
    Assignee: Asia Optical Co., Inc.
    Inventors: Hua-Tang Liu, Hui-Qing Chen, Ling-Ben Yu
  • Laser distance measuring system with a shutter mechanism
    Publication number: 20080036993
    Abstract: A laser distance measuring system includes an object lens, a beam splitter, a transmitter, a receiver, and a shutter mechanism. The beam splitter is disposed at one side of the object lens. The transmitter emits a laser beam that is split by the beam splitter into a measurement beam and a reference beam. The measurement beam passes through the object lens, and is reflected by an object to result in a reflected measurement beam passing through the object lens. The receiver is disposed to receive the reflected measurement beam and the reference beam. The shutter mechanism includes a beam masker operable to move to either block path of the reflected measurement beam to the receiver or path of the reference beam to the receiver.
    Type: Application
    Filed: July 30, 2007
    Publication date: February 14, 2008
    Inventors: Hua-Tang Liu, Hui-Qing Chen, Ling-Ben Yu