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:
Dec. 02, 1986
Filed:
Sep. 19, 1983
Applicant:
Inventors:
Tetsuro Kuwayama, Yokohama, JP;
Kazuya Matsumoto, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
250227 ; 250201 ; 369 44 ; 369 45 ;
Abstract
An optical head comprises a light source unit for supplying a light beam, a condensing unit for condensing the light beam from the light source unit on an object surface and directing the light beam from the object surface to a detecting unit, the condensing unit being movable relative to the light source unit and the detecting unit, a detecting unit for detecting the light beam from the condensing unit, and a flexible optical transmitter forming an optical path leading from the light source unit to the condensing unit and an optical path leading from the condensing unit to the detecting unit.