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. 10, 2004
Filed:
Jul. 12, 2002
Applicant:
Inventor:
Nobuaki Sakai, Hachioji, JP;
Assignee:
Olympus Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 2/608 ;
U.S. Cl.
CPC ...
G02B 2/608 ;
Abstract
A driving circuit for an optical scanner includes an oscillation driving device for oscillating a moving plate, an oscillation detecting device for detecting the oscillating condition of the moving plate, an oscillating frequency control device for controlling the amplitude of a torsional oscillation of the moving plate, and an oscillating amplitude control device for controlling the amplitude of the torsional oscillation of the moving plate. The driving circuit is thus constructed so that the oscillation of a scanner can be controlled with a high degree of accuracy.