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. 22, 1992
Filed:
Nov. 12, 1991
Sota Okamoto, Tsurugashima, JP;
Kiyofumi Chikuma, Tsurugashima, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
The optical wavelength conversion device according to the present invention comprises a light source for emitting a fundamental wave, a waveguide type optical wavelength conversion element having an optical coupler to receive said fundamental wave and an optical waveguide made of non-linear optical material for converting the fundamental wave to a secondary harmonic, and a light-focused optical system having an objective lens for converging the fundamental wave to the optical coupler, wherein the light-focused optical system includes an optical tilting means for tilting the optical axis of the fundamental wave with respect to the optical axis of the objective lens. The wavelength conversion device having a simple arrangement of an optical system can guide the fundamental wave to the wavelength conversion element at a high accuracy.