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:
Jul. 23, 1996
Filed:
Aug. 15, 1994
Applicant:
Inventors:
Gerard Le Paih, Merignac, FR;
Jean B Migozzi, Orsay, FR;
Assignee:
Sextant Avionique, Meudon La Foret, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G03H / ;
U.S. Cl.
CPC ...
359 15 ; 359-8 ; 359 24 ; 359568 ;
Abstract
A holographic filter for protection from radiation, notably laser radiation. At least one support is covered with at least two holograms. Each hologram is constituted by a stack of strata. The holograms are fixed to each other by an optical bonder associated with a selective absorbent material.