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:
Feb. 21, 1978
Filed:
Dec. 17, 1976
Applicant:
Inventors:
Karl-Peter Strauss, Volkmarode, DT;
Dietmar Elke, Braunschweig, DT;
Assignee:
Rollei-Werke Franke & Heidecke, Braunschweig, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354 / ; 354 53 ; 354 / ;
Abstract
A photographic camera in which at least one of the two main exposure factors (shutter speed and diaphragm aperture) may be set either manually or automatically. Indicating means is provided, visible in the viewfinder of the camera, to indicate to the user both the exposure factor value which he has set manually (if any) and the exposure factor value which the automatic mechanism would select according to prevailing light conditions, regardless of whether the user plans to utilize the automatic setting feature or whether he prefers to set the factor manually.