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. 31, 1976
Filed:
Mar. 12, 1975
Applicant:
Inventors:
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
350 / ; 350-35 ;
Abstract
The invention relates to a coupling device for an optical waveguide, using a hologram recorded in a photoresist layer arranged on a face of the waveguide, and capable of coupling a wave having a predetermined wafe front and travelling outside the waveguide and a plane wave travelling inside the guide. The invention also describes a holographic method for manufacturing such a coupling device.