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:
Aug. 16, 1988
Filed:
Aug. 26, 1982
Applicant:
Inventors:
Giok D Khoe, Eindhoven, NL;
Antonius J Nicia, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02F / ; H04B / ;
U.S. Cl.
CPC ...
350 9619 ; 350 9616 ; 350 9618 ; 350 9615 ; 3503 / ; 3503 / ; 350352 ; 350374 ; 350395 ; 370-2 ; 370-3 ;
Abstract
The invention relates to an optical demultiplexer whose 'color band' is adjustable, so that the demultiplexer can always be adapted to future standards. The adjustment is performed either by tilting the optical grating with respect to the light beam incident thereon or by deflecting the light by means of a liquid crystal arranged in the light path.