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:
Dec. 31, 2002
Filed:
Oct. 20, 1998
Hiroyuki Kawamura, Saitama, JP;
Hiroshi Mizumura, Saitama, JP;
Fuji Photo Optical Co., Ltd., Saitama, JP;
Abstract
When an initialization switch of the TV lens is turned on, an iris is opened and a zoom lens group is moved to a telephoto end automatically. An AF function moves a focus lens group to focus the TV lens according to a focus evaluation value obtained from a video signal. Then, the zoom lens group is moved to a wide end, and the AF function moves a master lens group to focus the TV lens according to the focus evaluation value. The focusing with the focus lens group while the zoom lens group is placed at the telephoto end and the focusing with the master lens group while the zoom lens group is placed at the wide end are repeated alternately several times. Thus, the flange back length of the TV lens can be adjusted automatically.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile