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:
Sep. 24, 1991
Filed:
Mar. 05, 1990
Applicant:
Inventor:
Tetsuo Ohara, Yokohama, JP;
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G02F / ; G02B / ;
U.S. Cl.
CPC ...
359281 ; 359500 ; 359245 ; 365122 ;
Abstract
Optical shutters having a magneto-optical material confined in a holding plate which allows a light to pass through the magneto-optical material. When the intensity of a magnetic field applied to the magneto-optical material is changed, an amount of a polarized light passing through the magneto-optical material is adjusted. A magnetic head with a coil has open ends which are disposed to face the outer surface of a shutter member. A plurality of such optical shutters are arranged to form an optical shutter array.