Patents by Inventor Yusuke Amano

Yusuke Amano 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).

  • Focus detecting device
    Publication number: 20040112535
    Abstract: A focus detecting device includes a multi-beam producing member for emitting a plurality of light beams; a light-intercepting member for intercepting a part of the plurality of light beams; a beam splitting member having a surface for reflecting or transmitting an incident light beam; a light-condensing optical system for condensing the incident light beam; and a photodetector having at least two light-receiving sections. The multi-beam producing member and the light-intercepting member are placed on a first path of light, and the light-condensing optical system and the photodetector are placed on a second path of light. The beam splitting member is located at the intersection of the optical axis of the first path of light with the optical axis of the second path of light, and the photodetector is located at a position where the light beam is condensed by the light-condensing optical system.
    Type: Application
    Filed: October 21, 2003
    Publication date: June 17, 2004
    Applicant: Olympus Optical Co., Ltd.
    Inventors: Yasushi Fujimoto, Hideaki Endo, Takashi Yoneyama, Yusuke Amano, Susumu Takahashi
  • Focus detecting device for an optical apparatus
    Patent number: 6649893
    Abstract: A focus detecting device includes a multi-beam producing member for emitting a plurality of light beams; a light-blocking member for blocking a part of the plurality of light beams; a beam splitting member having a surface for reflecting or transmitting an incident light beam; a light-condensing optical system for condensing the incident light beam; and a photodetector having at least two light-receiving sections. The multi-beam producing member and the light-blocking member are placed on a first optical path, and the light-condensing optical system and the photodetector are placed on a second optical path. The beam splitting member is located at the intersection of the optical axis of the first optical path with the optical axis of the second optical path, and the photodetector is located at a position where the light beam is condensed by the light-condensing optical system.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: November 18, 2003
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Yasushi Fujimoto, Hideaki Endo, Takashi Yoneyama, Yûsuke Amano
  • Focus detecting device
    Publication number: 20010042816
    Abstract: A focus detecting device includes a multi-beam producing member for emitting a plurality of light beams; a light-blocking member for blocking a part of the plurality of light beams; a beam splitting member having a surface for reflecting or transmitting an incident light beam; a light-condensing optical system for condensing the incident light beam; and a photodetector having at least two light-receiving sections. The multi-beam producing member and the light-blocking member are placed on a first optical path, and the light-condensing optical system and the photodetector are placed on a second optical path. The beam splitting member is located at the intersection of the optical axis of the first optical path with the optical axis of the second optical path, and the photodetector is located at a position where the light beam is condensed by the light-condensing optical system.
    Type: Application
    Filed: April 12, 2001
    Publication date: November 22, 2001
    Inventors: Yasushi Fujimoto, Hideaki Endo, Takashi Yoneyama, Yusuke Amano