Manual focal point adjusting and change-over device for use in a

Details Manual focal point adjusting and change-over device for use in a Manual focal point adjusting and change-over device for use in a

1980-08-11

1982-09-14

Hix, L. T.

354149, 354196, 354198, 354289, G03B 300, G03B 1503, G03B 1718

Patent

active

043492584

ABSTRACT:
A focal point adjusting and change-over mechanism for an automatic focusing camera, including a mechanism for restricting a position of the camera photographic lens in response to a distance sensing signal, and a change-over mechanism manually operable to at least two positions including an automatic position and a manual position. The restricting mechanism is operative to provide automatic focusing of the lens when the change-over mechanism is set at a position for automatic operation, and the change-over mechanism renders the distance sensing signal or the restricting mechanism inoperative when set at the position for manual operation, and thereby manual focusing is carried out in accordance with the manually set position of the change-over mechanism in the manual position.

REFERENCES:
patent: 3886568 (1975-05-01), Yazaki et al.
patent: 4100554 (1978-07-01), Iijima
patent: 4124855 (1978-11-01), Uchidoi et al.
patent: 4148574 (1979-04-01), Johnson
patent: 4153903 (1979-05-01), Pizzuti et al.

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