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. 13, 1978
Filed:
Jun. 28, 1976
Applicant:
Inventors:
Erich Spitz, Paris, FR;
Guy Bismuth, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G03H / ;
U.S. Cl.
CPC ...
350-372 ; 3501 / ;
Abstract
The present invention relates to holographic lenses. The wide field holographic lens in accordance with the invention is obtained by the superimposition of interference networks recorded within the volume of a thick material. These networks constitute a corresponding number of thick elementary holographic lenses, each of which satisfactorily covers a specific region of the field; the invention likewise describes a device for constructing said wide field holographic lens.