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:
Nov. 16, 1982
Filed:
Mar. 19, 1980
Michikazu Kondo, Tokyo, JP;
Nippon Electric Co., Ltd., Tokyo, JP;
Abstract
First, second and third double refractive elements are aligned along a Y axis. A polarization converter is disposed between the first and second elements for polarizing two light component, produced by the first element and a reflection mirror is disposed between the second and third element for deflecting a first output light of the second element. The second birefringence element operates to separate two light components converted by the polarization converter into converted light and not converted light and to synthesize one of the separated light component to produce a first output light and to convert remaining light component into second and third output light. The third birefringence element operates to synthesize the second and third lights supplied from the second element to form a single output light thereby controlling quantity of light produced by the third element by the polarization converter.