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:
Nov. 27, 2001
Filed:
Oct. 01, 1999
Brahim Dahmani, Montrouge, FR;
Alexander Galpern, St. Petersburg, RU;
Vitaly Sukhanov, St. Petersburg, RU;
Corning Precision Lens, Cincinnati, OH (US);
Abstract
The device includes a) flat mirror (,) formed by adjacent areas (,) that are alternately transparent and reflecting with parallel and straight lines of demarcation, b) identical first (,) and second (,′) reflection holograms, each delivering at least one diffracted beam with a predetermined spectral composition, c) illuminating source (,) for illuminating said holograms (,′) at normal incidence by the intermediary of said mirror (,), said holograms (,′) being arranged symmetrically with respect to the plane of said mirror (,) in such a way as to be illuminated by the intermediary of transparent (,) and reflecting (,) strips, respectively, of mirror (,), and in such a way that the beams diffracted by the first and second holograms are reflected and transmitted, respectively, by reflecting (,) and transparent (,) strips, respectively, of mirror (,), in order to be combined into a continuous light beam with said spectral composition.