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:
Jan. 10, 1984
Filed:
Jan. 27, 1981
Applicant:
Inventors:
Kazuya Matsumoto, Yokohama, JP;
Isao Yamaguchi, Tokyo, JP;
Takao Tsuji, Kawasaki, JP;
Hideaki Sato, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9614 ; 350 9613 ;
Abstract
A device for scanning a beam spot. The device has a light deflecting portion and a light condensing thin film lens formed on a thin film waveguide path. In this device, a chirped signal is applied to a surface elastic wave transducer constituting the light deflecting portion, whereby scanning of the beam spot is effected on or near the curved end surface of the thin film waveguide path. This device is very compact and capable of high-speed scanning.