Optical apparatus

Details Optical apparatus Optical apparatus

1996-05-29

1998-02-17

Sugarman, Scott J.

Optical: systems and elements

Lens

With variable magnification

G02B 1514

Patent

active

057197105

ABSTRACT:
An optical apparatus is provided with a main operation member arranged to permit both a rectilinear operation and a rotational operation, a subordinate operation member arranged to be operated to vary an operating force required for operating the main operation member to a greater extent for the rectilinear operation than for the rotational operation, a first optical adjustment mechanism arranged to perform a first optical adjusting action in association with the rectilinear operation of the main operation member, and a second optical adjustment mechanism arranged to perform a second optical adjusting action in association with the rotational operation of the main operation member.

REFERENCES:
patent: 4806000 (1989-02-01), Shiokama et al.
patent: 4925282 (1990-05-01), Kanno et al.
patent: 5305036 (1994-04-01), Tanaka
patent: 5418650 (1995-05-01), Imanari

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