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:
Sep. 29, 1998
Filed:
Feb. 14, 1997
Minolta Co., Ltd., Osaka, JP;
Abstract
To shoot a still picture and a moving picture simultaneously, a light beam having passed through a taking lens is split by a half-mirror into two light beams so that one of the split light beams is directed to silver halide film and the other is directed to a CCD. An image captured by the CCD is displayed on a viewfinder. Focus condition of an image on the silver halide film is detected by the phase-difference detection method and focus condition of an image on CCD is detected by the contrast detection method so that, based on detection results, the focus of the taking lens or of a relay optical system is adjusted to obtain a well-focused image. When focus condition detection by one method is impossible, results of focus condition detection by the other method are used to adjust the focus.