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US 5,610,761 AGranted
Telescope having mechanism for automatically returning optical system to a reference dioptric power
AssigneeMinolta Co., Ltd.
InventorsKenji Ishibashi, Kazuo Kimura, Iwao Ishida, Kiyoshi Nishitani
Life of this patent
Estimating the term…
Abstract
A focusing lens for adjusting the dioptric power in accordance with the user's dioptric power is provided in each of right and left lens barrels. When a main switch dial is set at a normal position, a microcomputer sets the focusing lens at a dioptric power of 0 by controlling a motor so that the focusing lens moves to a position corresponding to a dioptric power of 0.
Claims13
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.
3 more elements
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 dioptric power of 0;
- 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.
3 more elements
A telescope comprising:
- an optical system;
- a specifying member which is operable by an operator and specifies reset of a position of the optical system to a reference position corresponding to a predetermined reference dioptric power;
- and
- a dioptric power adjusting mechanism which automatically moves the optical system to the reference position.
1 more element
A telescope comprising:
- an optical system;
- a specifying member which is operable by an operator and specifies reset of a position of the optical system to a reference position of a dioptric power of 0;
- and
- a dioptric power adjusting mechanism which automatically moves the optical system to the reference position.
1 more element
Dependencies are inferred from the claim text.