Binoculars capable of quickly moving lens covers to a retracted

Details Binoculars capable of quickly moving lens covers to a retracted Binoculars capable of quickly moving lens covers to a retracted

1999-12-16

2000-12-05

Schuberg, Darren

Optical: systems and elements

Compound lens system

Telescope

359412, 359511, G02B 2300

Patent

active

061574821

ABSTRACT:
Binoculars has a pair of body units, lens cover members and lens cover member control mechanism. The body units have a lens each and are relatively movable between a first position in which the body units are not used and a second position in which the body units are used. The lens cover members are movable, at the fronts of the body units, between a protective position in which the respective lenses are not exposed to an outside and a retracted position in which the respective lenses are exposed to the outside. The lens cover member control mechanism latches the lens cover member to the protective position when the units bodies are set to a first position in which they are not used and releases the latching of the lens cover members in interlock with the movement of the body units from the first position to the second position and, by doing so, moves the lens cover members to the retracted position.

REFERENCES:
patent: 4641932 (1987-02-01), Harms
patent: 5223973 (1993-06-01), Ratzlaff
patent: 5631772 (1997-05-01), Mizukawa
patent: 5784195 (1998-07-01), MacCollum

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