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. 10, 1983
Filed:
Nov. 12, 1980
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G06C / ; H05B / ;
U.S. Cl.
CPC ...
354 33 ; 354 35 ; 354127 ; 354149 ; 315151 ; 3152 / ; 362-4 ; 362-5 ; 235 647 ; 116213 ;
Abstract
An indicating device of computer type electronic flash apparatus has a plurality of display members representing respective limited distance ranges for correct exposure of an object to be photographed. Each of the display members corresponds to a respective set diaphragm value. The indicating device further includes a plurality of indicating marks provided on the same plane of said display members and corresponding to respective set diaphragm values. With this device, it is possible to be aware of the proper distance range satisfactorily.