Camera with adjustable objective

Details Camera with adjustable objective Camera with adjustable objective

1976-12-20

1978-01-24

Wintercorn, Richard A.

354221, 354354, G03B 300, G03B 1302

Patent

active

040706869

ABSTRACT:
A camera is provided with an objective supported by a housing of the camera or movement along its optical axis. A movable member is guided by the camera housing for movement transversely with respect to the optical axis, and this movable member has a pair of inclined surfaces. These inclined surfaces are inclined both with respect to the optical axis and with respect to the direction of movement of the movable member. A pair of pressing members respectively press against the inclined surfaces of the movable member, a pair of springs acting on the pair of pressing members for urging them against the inclined surfaces, respectively, so that the latter surfaces are slidable with respect to the pressing members engaging the same. One of these pressing members is fixed to the objective so that when the movable member is moved transversely with respect to the optical axis this one pressing member in cooperation with the inclined surface engaging the same will bring about adjustment of the objective along its optical axis. The arrangement of the pair of inclined surfaces of the movable member is such that at all times, irrespective of the position of the movable member, the spring-pressed pressing members provide equal and opposite forces in the direction of movement of the movable member.

REFERENCES:
patent: 3798670 (1974-03-01), Tanaka
patent: 3836934 (1974-09-01), Suzuki et al.
patent: 3913113 (1975-10-01), Yamashita

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