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. 28, 2001
Filed:
May. 28, 1999
Applicant:
Inventors:
Christophe Hubert-Habart, Meudon, FR;
Gilles Fournier, Bois D'Arcy, FR;
Assignee:
Aerospatiale Societe Nationale Industrielle, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 2/308 ;
U.S. Cl.
CPC ...
G02B 2/308 ;
Abstract
A device for protecting an optical system against the excess luminosity of an incident light beam. The device forms first and second light beams from an incident light beam. A mirror reflects the first beam which is then guided toward the optical system. The mirror includes a reflecting layer capable of being ablated, at least locally, when it is subjected to high luminous intensity. The second beam initiates the ablation process of the reflecting layer, which is continued and completed by the joint action of the first and second light beams.