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:
Apr. 14, 2015
Filed:
Mar. 15, 2013
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Shinji Sakurai, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01);
U.S. Cl.
CPC ...
H04N 5/23212 (2013.01);
Abstract
A document camera has an automatic focus function, and performs the automatic focus process for automatically adjusting the focus lens to the focal position in accordance with the subject distance when the document camera is started up, or when the focus key of the input operation section is operated. Further, when performing the automatic focus process, the document camera is arranged to detect the focal position in the state in which the zoom lens is temporarily moved to the telephoto end with shallow depth of field, and then restore the position of the zoom lens to the original position.