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:
Jan. 05, 1982
Filed:
Apr. 07, 1980
Applicant:
Inventor:
Edwin K Shenk, Westford, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354195 ; 352140 ;
Abstract
A photographic camera having an adjustable focus lens is provided with an automatic focus control system to focus said lens at one focusing rate if the lens focusing movement necessary to focus said lens to the proper subject-in-focus position is greater than a predetermined magnitude, and at another focusing rate if said necessary lens focusing movement is equal to or less than said predetermined magnitude.