Camera having a picture image area and field of view varying mec

Details Camera having a picture image area and field of view varying mec Camera having a picture image area and field of view varying mec

1994-03-11

1995-10-17

Gellner, Michael L.

354 94, G03B 1702, G03B 3700

Patent

active

054595410

ABSTRACT:
A camera having a mechanism for varying a picture image includes, an aperture frame which defines an aperture corresponding to the image area, and a pair of light intercepting plates which are rotatably supported by respective shafts on opposite sides of the aperture. The pair of light intercepting plates move between an operative position, in which the light intercepting plates partly cover the aperture, and a retracted position, in which the light intercepting plates are retracted from the aperture. The operative position corresponds to a small image area, and the retracted position corresponds to a large image area. The camera further includes an associating rod member, which is provided in the vicinity of one end of the shafts of the light intercepting plates and movable in a direction substantially perpendicular to the shafts, and an actuating member, which rotates the light intercepting plates in association with the movement of the rod member.

REFERENCES:
patent: 4987436 (1991-01-01), Misawa
patent: 5010357 (1991-04-01), Misawa
patent: 5066971 (1991-11-01), Kodaira
patent: 5086311 (1992-02-01), Naka et al.
patent: 5142315 (1992-08-01), Haraguchi
patent: 5258790 (1993-11-01), Tanaka
patent: 5294951 (1994-03-01), Lo
patent: 5298929 (1994-03-01), Tsunefuji et al.
patent: 5305051 (1994-04-01), Irie et al.
patent: 5323196 (1994-06-01), Labaziewicz
patent: 5327183 (1994-07-01), Kurei
patent: 5345285 (1994-09-01), Hasushita et al.

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