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. 25, 1982
Filed:
Mar. 30, 1981
Applicant:
Inventors:
William J Cianci, Jr, North Andover, MA (US);
Donato F Pizzuti, Lynnfield, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; G03B / ;
U.S. Cl.
CPC ...
354195 ; 354127 ; 354198 ; 354217 ; 354289 ;
Abstract
An autofocusing camera having an ultrasonic ranging system, formed in part by a sonic transducer, for measuring subject distance is provided with an audio system which incorporates the same sonic transducer for providing the camera operator with audible information, such as warning signals indicating that the camera is out of film or that the flash illumination system is not in its operative or ready state.