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:
Oct. 23, 2001
Filed:
Oct. 28, 1999
Adrianus C. W. Custers, Eindhoven, NL;
Pieter W. C. Provo Kluit, Eindhoven, NL;
Jacob C. P. Den Dulk, Eindhoven, NL;
Gabrielle J. B. M. Meekes, Eindhoven, NL;
Wanda S. Kruijt, Eindhoven, NL;
Lucas L. D. Van Der Poel, Eindhoven, NL;
Franciscus G. P. Sools, Eindhoven, NL;
Constance J. E. Saalberg-Seppen, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A first road marking unit with a first base plate is provided with a first light source, and a second road-marking unit with a second base plate is provided with a second light source. A view angle of 0.1≦&agr;≦8° is formed between an interconnecting line, which interconnects the first and the second light sources, and an intersecting line which intersects the interconnecting line. In a view section where the view angle is 0.1≦&agr;≦8°, light beams originating from the first and the second light sources demonstrate a uniform overlap in the view section at a distance a≧40 m from the first light source. Preferably, the distance d between the first light source and the second light source lies in the range from 10 ≦d≦25 cm. The first and the second base plate of the road-marking units are integrated so as to form a base module.