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. 29, 2002
Filed:
Apr. 19, 1999
Laurent Potin, Bordeaux, FR;
Joël Baudou, St Medard en Jalles, FR;
Sextant Avionique, Velizy Villacoublay, FR;
Abstract
A helmet with night vision system. The system includes an image generator, an optical mixing system for mixing the light rays output by the night vision system and the light rays output by the image generator and a fixed optical system downstream of the optical mixing system. All of the night vision system and the optical mixing system can be removed and a substitute optical system can be inserted for daytime vision. The substitute optical system has the same optical characteristics as the optical mixing system, but has a transmission coefficient higher than that of the optical mixing system. The substitute system is optimized for day vision while the mixing system is optimized for night vision. The helmet may be used for pilots of combat helicopters or airplanes.