Illumination device

Abstract

In order to create an illumination device (1) with improved technical light characteristics for a vehicle, it is proposed that the illumination device (1) include a primary reflector (2) to create core light distribution, and a secondary reflector (3) interacting with a lens to create peripheral light distribution.

Description

Further advantages and application opportunities of the invention may be taken from [illustrations of] the subsequent embodiment examples, which show:

FIG. 1 schematic three-dimensional view of an illumination device based on an advantageous embodiment example;

FIG. 2 representation of the core light distribution created by primary reflectors;

FIG. 3 representation of base light distribution created by a secondary reflector;

FIG. 4 schematic view of the overall light distribution;

FIGS. 5 a through 5e schematic views of example cylindrical lenses as seen from above.

Claims

1. Illumination device (1) in a vehicle, whereby the illumination device (1) includes a light source (5), characterized in that the illumination device (1) includes a primary reflector (2) to create a core light distribution and a secondary reflector (3) interacting with a lens to create peripheral light distribution.

2. Illumination device (1) as in claim 1, characterized in that the primary reflector (2) and the secondary reflector (3) are configured such that the primary reflector (2) and the secondary reflector (3) both reflect a partial output from the same light source (5).

3. Illumination device (1) as in claim 1 or 2, characterized in that the illumination device (1) includes a light attenuator interacting with the secondary reflector (3).

4. Illumination device (1) as in one of prior claims, characterized in that an asymmetrical highbeam-lowbeam line is created by the light reflected from the primary reflectors (2).

5. Illumination device (1) as in one of prior claims, characterized in that the primary reflector (2) is formed of two laterally-positioned reflector elements.

6. Illumination device (1) as in one of prior claims, characterized in that the primary reflector (2) is largely parabolic in shape.

7. Illumination device (1) as in one of prior claims, characterized in that the secondary reflector (3) is largely elliptical in shape.

8. Illumination device (1) as in one of prior claims, characterized in that the primary reflector (2) and the secondary reflector (3) are formed as one piece.

9. Illumination device (1) as in one of prior claims, characterized in that a lamp bracket is mounted on the secondary reflector (3).

10. Illumination device (1) as in one of prior claims, characterized in that the lens is selected to be a horizontally-oriented cylindrical lens (4).

11. Illumination device (1) as in one of prior claims, characterized in that the vertical cross-section of the side of the lens (4) facing away from the light source (5) is aspherical.

12. Illumination device (1) as in one of prior claims, characterized in that a scattering element is assigned to the lens.

13. Illumination device (1) as in claim 12, characterized in that the scattering element causes horizontal scattering.

14. Illumination device (1) as in claim 12, characterized in that on a side of the lens facing toward the light source, the scattering element is formed (5) as one piece with it.

15. Illumination device (1) as in one of prior claims, characterized in that the light source (5) is a gas-discharge lamp.

16. Illumination device (1) as in one of prior claims, characterized in that the primary reflector (2), or at least one or more parts of the primary reflector (2) is/are moveable to create a variable light distribution.