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. 21, 1994
Filed:
Dec. 10, 1992
Serge Valette, Grenoble, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
The optical mirror incorporates a lightguide (20) produced on a surface (23) of a substrate (22) and used for the propagation of a light beam (36) in a direction parallel to said surface, a cavity (30) made in the lightguide (20) and having in the propagation direction a first (32) and a second (34) walls oriented perpendicular to said direction and having in section approximately the shape of a circular arc, the distance (L) separating the two walls being equal to the radius of curvature (R) of the second wall at the optical axis (37) of the mirror and a reflecting material layer (38) deposited solely on the second wall in order to reflect the light beam towards the first wall, the second wall forming a concave reflecting surface.