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. 07, 2003
Filed:
Feb. 01, 2000
Applicant:
Inventors:
Laurent Bignolles, Bordeaux, FR;
Laurent Potin, Bordeaux, FR;
Assignee:
Sextant Avionique, Velizy Villacoublay, FR;
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/700 ; G02B 2/714 ;
U.S. Cl.
CPC ...
G02B 1/700 ; G02B 2/714 ;
Abstract
The invention relates to an optical device for a system for presenting collimated images including an off-axis spherical mirror. The device has an additional aspherical mirror whose surface forms, in the plane of symmetry of the unfolded optical system, a curve whose radius of curvature is variable. The surface provides for correction of the image of a pupil of an eye given by the spherical mirror and the pupil image is rectified on the optical axis. The surface may be a paraboloid, an ellipsoid and it may exhibit symmetry of revolution.