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. 09, 1992
Filed:
Sep. 05, 1989
Applicant:
Inventors:
Hiroo Fujita, Sayama, JP;
Tetsuro Ishizuka, Iruma, JP;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02F / ; G02F / ;
U.S. Cl.
CPC ...
359298 ; 359305 ; 258201 ;
Abstract
A two-dimensional optical scanning system two fine-optical deflectors for a stepwise and fine deflection of a laser beam in two directions perpendicular to each other, whereby a fine scan zone can be stepwise scanned by the laser beam at a fine deflection distance. The optical scanning system also may have two coarse-optical deflectors for a stepwise and coarse deflection of the laser beam, whereby a coarse scan area can be scanned by the laser beam, the fine scan zone being encompassed by the coarse scan area at a coarse deflection distance, the fine zone being encompassed by the coarse scan area.