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. 11, 1983
Filed:
May. 28, 1982
Applicant:
Inventors:
Toshinori Imura, Sakai, JP;
Shinji Tominaga, Sakai, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Higashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354 25 ;
Abstract
An automatic focus adjusting device for a camera is provided that detects the contrast of a target object and generates an appropriate signal. If the target contrast is lower than a predetermined level the objective lens is set at an infinity focusing position. When the camera is set for flash photography it overrides any adjustment signal beyond the maximum flash photography distance.
Imura, Toshinori. (1983). Automatic focus adjusting device for use in a camera (U.S. Patent No. 4408855). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4408855
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile