Patents Examined by Fadi H. Dahbout
  • Endoscope for optically variable power using moving time as position information
    Patent number: 6508760
    Abstract: A movable lens is provided at the tip of an electroscope, and an optically enlarged image can be observed by moving the movable lens by a motor. A microcomputer measures the entire moving time from a far end to a near end of the movable lens, and the moving time is used as the variable power position information about the movable lens. The variable power position information is displayed by a meter display, etc. on a monitor. Thus, an encoder, etc. is not required.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: January 21, 2003
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Kazuhiro Yamanaka, Mitsuru Higuchi