Telescope having mechanism for automatically returning optical s

Details Telescope having mechanism for automatically returning optical s Telescope having mechanism for automatically returning optical s

1994-12-28

1997-03-11

Callahan, Timothy P.

Optical: systems and elements

Compound lens system

Telescope

359410, G02B 2300

Patent

active

056107617

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.

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