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:
Apr. 24, 1990
Masataka Shiba, Yokohama, JP;
Ryuichi Funatsu, Yokohama, JP;
Motoya Taniguchi, Kamakura, JP;
Minoru Tanaka, Yokohama, JP;
Akira Inagaki, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Disclosed is an information detecting system of scanning type which comprises a substrate formed with an optical waveguide layer, a laser oscillator emitting a laser beam, a SAW type beam deflecting device formed on the optical waveguide layer, a beam irradiating section irradiating a specimen with the laser beam derived from the optical waveguide layer, a controller controlling the frequency of a high-frequency voltage applied to the SAW type beam deflecting device so as to scan the specimen with the laser beam directed from the beam irradiating section, and a detecting section detecting the position and/or the intensity of the laser beam scanning the specimen with respect to the SAW control signal controlled by the controller.