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. 22, 1983
Filed:
Jun. 04, 1981
Applicant:
Inventor:
John W Stempeck, Reading, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354196 ;
Abstract
A photographic camera having both automatic and manual focusing modes of operation includes apparatus for establishing an electrical signal representative of lens focus position for lens focusing related purposes when in its automatic focusing mode of operation, is capable of generating this electrical signal for camera functions other than lens focusing by automatically positioning the lens from its initial manually focused position to a reference position and then back to its initial position, when the camera is operated in its manual focus control mode.