Claims
- 1. A signaling device for traffic signals, comprising:
a light source; and a collimator associated with said light source, said collimator having a surface facing said light source, said surface having contiguously disposed scattering elements formed as prominences elongated in a direction along said surface.
- 2. The signaling device according to claim 1, wherein said collimator is a Fresnel optical system.
- 3. The signaling device according to claim 2, wherein said Fresnel optical system is a Fresnel lens.
- 4. The signaling device according to claim 2, wherein said Fresnel optical system is a Fresnel plate.
- 5. The signaling device according to claim 2, wherein:
said Fresnel optical system has a rear side; and said prominences are disposed on said rear side of said Fresnel optical system.
- 6. The signaling device according to claim 1, wherein said prominences have elliptical base areas on said surface of said collimator.
- 7. The signaling device according to claim 6, wherein said prominences are formed by segments of ellipsoids.
- 8. The signaling device according to claim 6, wherein said prominences are segments of ellipsoids.
- 9. The signaling device according to claim 1, wherein:
said collimator has a focal plane; and said light source is disposed at said focal plane of said collimator.
- 10. The signaling device according to claim 1, wherein:
said collimator has a focal plane; and said light source is disposed in said focal plane of said collimator.
- 11. The signaling device according to claim 1, wherein said light source has a field with light-emitting diodes.
- 12. A signaling device, comprising:
a light source; and a collimator associated with said light source, said collimator having a surface facing said light source, said surface having contiguously disposed scattering elements formed as prominences elongated in a direction along said surface.
- 13. In a signaling device having a light source, a focusing device, comprising:
a collimator associated with said light source, said collimator having a surface facing said light source, said surface having contiguously disposed scattering elements formed as prominences elongated in a direction along said surface.
- 14. The signaling device according to claim 13, wherein the signaling device is a traffic-signaling device.
- 15. The signaling device according to claim 13, wherein said collimator is a Fresnel optical system selected from the group consisting of a Fresnel lens and a Fresnel plate.
- 16. The signaling device according to claim 15, wherein:
said Fresnel optical system has a rear side; and said prominences are disposed on said rear side.
- 17. The signaling device according to claim 13, wherein said prominences have elliptical base areas on said surface of said collimator.
- 18. The signaling device according to claim 17, wherein said prominences are formed by segments of ellipsoids.
- 19. The signaling device according to claim 13, wherein said collimator has a focal plane at which the light source is disposed.
- 20. The signaling device according to claim 13, wherein the light source has a field with light-emitting diodes.
Priority Claims (1)
Number |
Date |
Country |
Kind |
100 22 713.9 |
May 2000 |
DE |
|
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is a continuation of copending International Application No. PCT/DE01/01334, filed Apr. 5, 2001, which designated the United States and was not published in English.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/DE01/01334 |
Apr 2001 |
US |
Child |
10292333 |
Nov 2002 |
US |