Camera having a photo-taking lens barrel movable in the directio

Details Camera having a photo-taking lens barrel movable in the directio Camera having a photo-taking lens barrel movable in the directio

1986-05-21

1988-01-26

Griffin, Donald A.

3542341, 354288, G03B 310, G03B 1700, G03B 924

Patent

active

047219726

ABSTRACT:
In a camera having a photo-taking lens barrel displaceable in the direction of the optic axis, the lens barrel includes a photo-taking optical system, a lens barrier blade disposed forwardly of the optical system and movable in a plane orthogonal to the optic axis of the optical system between a closed position for covering the front of the optical system and an opened position for exposing the front of the optical system, a shutter blade serving also as a diaphragm, the shutter blade being disposed rearwardly of the optical system and opened and closed to expose a film to light, an outer shell surrounding the optical system, the barrier blade and the shutter blade, and a shutter blade driving device disposed in a space rearward of the barrier blade when in the opened position and surrounding the optical system, the driving device driving the shutter blade.

REFERENCES:
patent: 993047 (1911-05-01), Folmer
patent: 3654845 (1972-04-01), Fahlenberg et al.
patent: 4227792 (1980-10-01), Rentschler
patent: 4410253 (1983-10-01), Tsuboi
patent: 4525050 (1985-06-01), Ohashi

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