EP 0710744 A1 19960508 - A traffic aid apparatus to be used under conditions of low visibility
Title (en)
A traffic aid apparatus to be used under conditions of low visibility
Title (de)
Verkehrhilfseinrichtung bei schlechter Sicht
Title (fr)
Dispositif d'aide à la circulation dans des conditions de faible visibilité
Publication
Application
Priority
EP 94830453 A 19940923
Abstract (en)
The invention concerns an apparatus (3) to be used as an aid for traffic when visibility is bad, consisting basically of a plurality of laser units (4) each emitting a beam of laser light at a frequency within the visible light spectrum and installed at regular intervals along at least one side (2) of a section of carriageway (1); the light from each laser unit (4) being emitted roughly in the direction of one of the other two nearest laser units. <IMAGE>
IPC 1-7
IPC 8 full level
E01F 9/40 (2016.01); E01F 9/608 (2016.01); E01F 9/615 (2016.01)
CPC (source: EP)
E01F 9/40 (2016.02); E01F 9/608 (2016.02); E01F 9/617 (2016.02)
Citation (search report)
- [A] EP 0613981 A1 19940907 - PRO CO GEN PROGETTAZIONI E COS [IT]
- [X] PATENT ABSTRACTS OF JAPAN vol. 17, no. 96 (M - 1372) 25 February 1993 (1993-02-25)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 94830453 A 19940923