Autofocus camera

Details Autofocus camera Autofocus camera

1990-05-23

1991-07-09

Perkey, W. B.

354152, 354270, G03B 1336, G03B 1912, G03B 902

Patent

active

050309838

ABSTRACT:
An autofocus camera comprises a focus detector for detecting a deviation of a photographic lens from an in-focus position with respect to a photographic object, a mirror driver for moving a mirror for reflecting a light beam from the photographic object to a viewfinder optical system, into and out of an image-forming optical path, a lens driver for moving the photographic lens to the in-focus position in accordance with the deviation detected by the focus detector, and an aperture controller for stopping down the light beam from the photographic object. The lens driver has a function for moving the photographic lens, and the aperture controller a function for making aperture adjustment, both during retraction of the mirror. During retraction of the mirror, the aperture adjustment is effected before the lens movement or vice versa.

REFERENCES:
patent: 4783677 (1988-11-01), Hamada et al.
patent: 4841327 (1989-06-01), Yamamoto et al.
patent: 4881097 (1989-11-01), Ishiguro
patent: 4887117 (1989-12-01), Kobayashi
patent: 4914465 (1990-04-01), Saegusa et al.
patent: 4941010 (1990-07-01), Aihara et al.
patent: 4972221 (1990-11-01), Ohnuki et al.

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