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:
May. 21, 1985
Filed:
Dec. 03, 1982
Applicant:
Inventor:
Kazunori Mizokami, Hachioji, JP;
Assignee:
Olympus Optical Company Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
3541271 ; 3542891 ; 315133 ; 315151 ;
Abstract
An indicator for proper or improper exposure provided by automatic electronic flash includes a first decision circuit having a first decision level lower than a proper level of exposure, and a second decision circuit having a second decision level higher than the proper level of exposure. Thus, a given film latitude is allowed for the overexposure and the underexposure in determining and displaying the overexposure, the underexposure or proper exposure.
Mizokami, Kazunori. (1985). Indicator for proper or improper exposure by automatic electronic flash (U.S. Patent No. 4518237). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4518237
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile