Parallax correcting mechanism of a zoom finder of a camera

Details Parallax correcting mechanism of a zoom finder of a camera Parallax correcting mechanism of a zoom finder of a camera

1994-10-28

1995-10-31

Adams, Russell E.

G03B 1314

Patent

active

054634385

ABSTRACT:
A zoom finder of a camera including a variable power zoom finder optical system and a parallax error compensating optical member that is rotatable between a retracted position and a parallax error compensating position in which the parallax error compensating optical member is in the optical path of the finder. Upon transfer to a macro mode, the parallax error compensating optical member is rotated to the compensating position from the retracted position. The finder is further provided with a snap-action mechanism, wherein an immediate rotation of the parallax error compensating optical member occurs between the compensating position and the retracted position when the parallax error compensating optical member moves beyond a point of instability of the snap-action mechanism in a direction of the compensating position and the retracted position, respectively.

REFERENCES:
patent: 4887109 (1989-12-01), Fujita et al.
patent: 4944030 (1990-07-01), Haraguchi et al.
patent: 5266992 (1993-11-01), Takaoka et al.

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