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:
Jun. 28, 1994
Filed:
Dec. 22, 1992
Applicant:
Inventors:
Jean F Depatie, Albion, NY (US);
William D VanArsdale, Spencerport, NY (US);
William M Leonard, Brockport, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
3542341 ;
Abstract
An electronically actuated shutter in which the location of the shutter blades are known to accurately control the aperture size and exposure. A gradient neutral density strip, a light source and a light detector are used to determine the position of the shutter blades.