Title:
VARIABLE POWER MICROSCOPE
Document Type and Number:
Japanese Patent JPH01180508
Kind Code:
A
Abstract:
PURPOSE:To exactly obtain a desired observation magnification by an easy operation by providing a storage means for storing a desired magnification and an input means for driving a driving system and controlling the driving so as to execute variable power to the stored magnification by an input signal. CONSTITUTION:A forward rotation and a backward rotation of a motor in a lens driving system 6 are executed by stepping on a seesaw type foot switch 7 in the direction A or the direction B, and can be varied to a high magnification and a low magnification, respectively. Subsequently, when a desired observation magnification is determined and a write switch 12 is turned ON, a signal from an encoder 8 passes through a controller 9 and a desired magnification is stored in a memory 10 by a necessary number. The controller 9 executes a control of a lens driving system by an input of the foot switch 7, write and read of the memory 10 for storing the desired magnification, and a control of an indicator 11 of the observation magnification. In such a way, the desired observation magnification is obtained exactly, and the variable power operation is also simplified.
Inventors:
TANAKA SHINYA
Application Number:
JP403188A
Publication Date:
July 18, 1989
Filing Date:
January 12, 1988
Export Citation:
Assignee:
CANON KK
International Classes:
G02B21/00; A61B3/12; A61B3/13; A61F9/00; (IPC1-7): A61B3/12; A61F9/00; G02B21/00
Attorney, Agent or Firm:
Hibiya Masahiko