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:
Oct. 12, 1993
Filed:
Aug. 26, 1992
Go Tokura, Kanagawa, JP;
Akira Karasawa, Kanagawa, JP;
Shoji Kaihara, Kanagawa, JP;
Etsuro Furutsu, Kanagawa, JP;
Nobuyuki Inoue, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A camera having a special photography function comprises a focus detecting circuit for detecting a state of focus of a subject, a focus-position altering circuit for altering a focus position of a photographic optical system in response to a detection result provided by the focus detecting circuit, and a special-photography executing circuit for executing special photography utilizing multiple exposure. The special-photography executing circuit is arranged to control the focus-position altering circuit in response to a release operation to shoot one exposure on a photosensitive portion with the photographic optical system placed in an in-focus position and continuously shoot at least one exposure on the same photosensitive portion with the photographic optical system placed in a defocused position on a closest-distance side, thereby effecting the multiple exposure.