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:
Sep. 20, 1994
Filed:
Mar. 31, 1993
Applicant:
Inventors:
Assignee:
Valeo Vision, Bobigny Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60Q / ;
U.S. Cl.
CPC ...
315 82 ; 315156 ; 307 108 ; 362 80 ;
Abstract
A lighting and indicating apparatus for a motor vehicle, for use in poor visibility. The unit includes a fog lamp and apparatus for automatically detecting the presence of poor visibility. The control system for automatic control of the lighting and indicating apparatus includes a humidity detecting circuit and an optical visibility detecting circuit, the outputs from which are combined by a combining circuit, the combined signal then being processed so as to control lighting or extinction of the fog lamp.