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. 27, 2004
Filed:
May. 15, 2003
Takeshi Kindaichi, Hachioji, JP;
Hisayuki Matsumoto, Hachioji, JP;
Olympus Corporation, Tokyo, JP;
Abstract
In an auto focusing system of the present invention, a light from an object is guided by an optical section to a light receiving section constituted of an imager such as a photoelectric transducer, and the object is imaged as a digital image at the light receiving section. A movable split image prism is arranged between a position immediately before a light receiving surface of the light receiving section in an optical path of the optical section and a position outside the optical path. Then, a deviation amount of a vide signal based on light rays passed through the split image prism is detected by a control section, and focusing of the optical section is carried out based on the deviation amount.