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:
Jan. 25, 1983
Filed:
Sep. 08, 1980
Applicant:
Inventors:
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G03B / ;
U.S. Cl.
CPC ...
350163 ; 350170 ; 350174 ; 362259 ; 355 71 ;
Abstract
Illuminating device comprising a laser source providing a coherent beam with gaussian distribution of intensity and means for separating the initial beam into four parts along two orthogonal directions, means for recombining the four parts resulting in their partial superimposition in a predetermined plane and means for averaging the interferences produced in the plane by the four parts.