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:
Jun. 23, 1992
Filed:
Jan. 24, 1991
Eric Blusseau, Carrieres-sur-Seine, FR;
Valeo Vision, Bobigny Cedex, FR;
Abstract
A motor vehicle headlight comprising: a light source; a first reflector of the ellipsoid kind having a first focus situated in the vicinity of the source; a mask passing through the second focus of the first reflector and presenting a light-passing window in the vicinity of said second focus, the shape of the window being fixed and predetermined so as to define a virtual light source whose light emission pattern corresponds essentially to said shape; and a second reflector situated on the opposite side of the mask to the first reflector and having a surface which itself determines the positions of the images of the virtual source as a function of a determined photometric distribution. The headlight is particularly suitable for use with an arc lamp that is required to co-operate with a reflector capable itself of generating a beam with a sharp cutoff.