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:
Aug. 26, 1997
Filed:
Apr. 07, 1995
Applicant:
Inventors:
Bruno Barbier, Bordeaux, FR;
Patrick Lach, Bordeaux, FR;
Assignee:
Sextant Avionique, Meudon la Foret, FR;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359800 ; 359619 ; 362268 ; 315 10 ; 345 98 ;
Abstract
A system of retro-illumination for optical valves integrated into a system of projection is constituted by a plane array of slotted fluorescent tubes, parallel to one another, associated with a plane array of longitudinal lenses parallel to the tubes and spaced out substantially by the same pitch. This system is a compact high-output system. It enables an easy gradation of the luminous level as well as the obtaining a trichromatic sequential retro-illumination without moving parts.