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. 08, 2002
Filed:
Feb. 14, 2000
Hervé Lefevre, Paris, FR;
Photonetics, Marly le Roi, FR;
Abstract
A single dimension self-aligned retroreflecting optical system for wavelength filtering, comprising at least one wave-guide with one internal face in a focal plane of collimation optics generating a main collimated beam. A diffraction grating has parallel lines, the lines disperse, in collimated beams, the different wavelengths of the main beam in directions parallel to a dispersing plane, the dispersing plane being perpendicular to the lines of the grating. A reflector system generates self-alignment in a longitudinal plane perpendicular to the dispersing plane. The reflector system comprises a spherical lens and a single dimension self-aligned reflector arrangement, the dimension being parallel to the dispersing plane of the grating.