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. 10, 1998
Filed:
Feb. 06, 1996
Applicant:
Inventor:
Laurent Monnier, Bordeaux, FR;
Assignee:
Sextant Avionique, Velizy Villacoublay, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03H / ; G02B / ; G09G / ;
U.S. Cl.
CPC ...
359 13 ; 359 15 ; 359630 ; 359634 ; 345-7 ; 345-8 ;
Abstract
A display system for a binocular helmet visor having image projectors projecting images on a semi-reflecting internal wall of the visor of the helmet. One image faces the right eye and another image faces the left eye. The shape of the surface of the internal wall of the visor makes it desirable to cross the optical paths of the two projectors at the helmet wearer's forehead in order to limit the deformation of the images. The optical paths of the two projectors are folded with holographic mirrors in a manner which results in a compact structure, reducing the space required for the visor and the overall weight of the helmet.