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:
Jun. 03, 1986
Filed:
Jul. 02, 1982
Applicant:
Inventors:
Jean-Pierre Huignard, Paris, FR;
Herve Arditty, Paris, FR;
Assignee:
Thomson CSF, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G42B / ;
U.S. Cl.
CPC ...
350-361 ; 350-364 ; 350-367 ; 350-381 ; 3501622 ;
Abstract
A holographic process is provided for recording-reading by means of index strata in the volume of a photoexcitable storage medium. This process consists in causing two beams to interfere in this medium during two successive writing steps by using writing radiations of different wavelengths. The reading of this medium is then effected by means of a third coherent radiation having for wave vector in the medium a linear combination of the wave vectors of said writing radiations.
Huignard, Jean-Pierre. (1986). Holographic recording and related reading process (U.S. Patent No. 4592618). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4592618
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile