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:
Jul. 21, 1992
Filed:
May. 09, 1991
Applicant:
Inventors:
Jun Funazaki, Hachioji, JP;
Yoshinori Ohta, Hachioji, JP;
Takashi Mizusaki, Hachioji, JP;
Hideo Adachi, Hachioji, JP;
Atsushi Yusa, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385-5 ; 385-4 ;
Abstract
An optical waveguide apparatus comprising a substrate made of material the refractive index of which is changed by an electric effect, and an optical waveguide which is formed on a portion of the substrate and allows passage of guided light. In the apparatus, the optical waveguide includes an optical path changing section for periodically producing an electromotive force under the control of one of control light and guided light.