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:
Jul. 21, 1992
Filed:
Apr. 23, 1991
Patrice Collot, Pantin, FR;
Valeo Vision, Bobigny Cedex, FR;
Abstract
The invention relates to a motor vehicle headlight glass suitable for being mounted in a position where it slopes relative to a vertical plane, and being of the type that comprises a plurality of stripes for the purpose of spreading the light emitted by the headlight substantially in a lateral direction. Each stripe in at least one given group of stripes has a stripe surface which is ruled and without slope discontinuity, having tangency planes which define a set of unit prisms whose prism angles and whose slopes relative to the vertical vary together in such a manner that an incident ray on any one of the prisms is deflected laterally by the prism by an amount that varies depending on the prism, but without being subjected to vertical deflection. The invention also provides a method of making a mold die for mass producing the glass, and a method of manufacturing the glass by molding.