Focus adjusting device for self-contained interchangeable lens c

Details Focus adjusting device for self-contained interchangeable lens c Focus adjusting device for self-contained interchangeable lens c

1978-12-13

1980-05-27

Wintercorn, Richard A.

G03B 300, G03B 302

Patent

active

042047609

ABSTRACT:
A self contained multiple interchangeable objective lens camera, having a photographic optical axis, includes first and second objective lenses which are movably carried within the camera for selective alternate positioning of one of the lenses in optical alignment with the camera optical axis. Each lens is movable between an operative photographic position when its longitudinal axis is substantially aligned with the camera optical axis and an inoperative position when its longitudinal axis is displaced from the camera optical axis. A driven member is carried by each of the objective lenses for effecting focusing adjustment. A manually operable distance setting member is carried by the camera. A control member, which is movable in response to movement of the distance setting member, carries first and second control portions which selectively engage the driven members of the first and second lenses respectively for controlling movement of the driven members to effect focusing of the lenses. A control surface, which lies in a plane parallel to the path of movement of the driven members when the lenses are moved between the operative and inoperative positions, is positioned between the control portions and the driven members. Accordingly when the lenses are interchanged, focusing adjustment will be effected by cooperation between the control portions of the control member and the driven members as result of interconnection between the distance setting member and the control member.

REFERENCES:
patent: 1178478 (1916-04-01), Becker
patent: 4097882 (1978-06-01), Engelsmann
patent: 4119983 (1978-10-01), Tanaka

Affiliated with

Also associated with

Rating

Focus adjusting device for self-contained interchangeable lens c does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Focus adjusting device for self-contained interchangeable lens c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focus adjusting device for self-contained interchangeable lens c will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1116982