Patents by Inventor Takayuki Sensut

Takayuki Sensut 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).

  • Finder optical system
    Patent number: 6430375
    Abstract: Disclosed is a finder optical system that is provided with a relay optical system that forms a second image by erecting an inverted first image formed on a first image plane through a taking leas of a camera, and a magnifying optical system through which the second image is observed under magnification. The relay optical system includes a condenser lens, a reflecting prism and a relay lens arranged in the order from the first image plane toward an eyepoint. The following conditions (1) and (2) are satisfied; (1) 0.25<|mr|<0.35 (2) 0.75<f2/f3<0.85 where, mr is magnification of the relay optical system, f2 is a focal length of the relay lens, and f3 is a focal length of the magnifying optical system.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: August 6, 2002
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventor: Takayuki Sensut
  • Finder optical system
    Publication number: 20010041071
    Abstract: Disclosed is a finder optical system that is provided with a relay optical system that forms a second image by erecting an inverted first image formed on a first image plane through a taking leas of a camera, and a magnifying optical system through which the second image is observed under magnification. The relay optical system includes a condenser lens, a reflecting prism and a relay lens arranged in the order from the first image plane toward an eyepoint.
    Type: Application
    Filed: March 30, 2001
    Publication date: November 15, 2001
    Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
    Inventor: Takayuki Sensut