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Telescope having mechanism for automatically returning optical system to a reference dioptric power

  • US 5,610,761 A
  • Filed: 12/28/1994
  • Issued: 03/11/1997
  • Est. Priority Date: 12/28/1993
  • Status: Expired due to Fees
First Claim
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1. A telescope comprising:

  • an optical system;

    a dioptric power adjusting mechanism for driving the optical system to adjust a dioptric power;

    a driving source which drives the dioptric power adjusting mechanism;

    a specifying member which specifies a position of the optical system corresponding to a predetermined reference dioptric power; and

    a controller which controls the dioptric power adjusting mechanism so that the optical system is driven to a reference position specified by the specifying member.

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