The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 1991
Filed:
May. 23, 1990
Akihiko Fujino, Osaka, JP;
Kenji Ishibashi, Osaka, JP;
Reiji Seki, Osaka, JP;
Sadanobu Ueda, Osaka, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
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.