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:
Aug. 20, 1985
Filed:
Nov. 02, 1983
Applicant:
Inventor:
Serge Kunica, Wellesley, MA (US);
Assignee:
Itek Corporation, Lexington, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354265 ; 352208 ;
Abstract
A first apertured shutter rotates almost a full revolution in a first direction, and a second apertured rotary shutter rotates almost a full revolution in an opposite direction before the apertures of both blades are present at the optical axis to effect exposure, thereby to reduce dynamic disturbances owing to the reduced blade accelerations required.