Patents Examined by W. H. Berkey
  • Camera
    Patent number: 4982218
    Abstract: A camera comprises a photo taking optical system; driving means for driving the photo taking optical system; a shutter; switching means for causing transmission of the driving force of the driving means to the photo taking optical system to be changed over to the shutter; and control means for controlling the shutter by converting the opening time of the shutter into the driving degree of the driving means.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: January 1, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Tsuboi, Isao Nakazawa, Hiroshi Maeno, Yasuhiko Shiomi