Irradiation device for automotive floodlights and automotive floodlights

Abstract

To provide an irradiation device capable of generating a sign light distribution in addition to a front area light distribution or a low beam light distribution.SOLUTION: An aperture device (103) is constituted by at least one boundary surface (106) of a light-transmitting body (100). There are provided a further light source, a so-called sign light light source (20), and a further sign light light incidence element (120) assigned to the sign light light source (20). The sign light light incidence element (120) shapes the light emitted by the sign light light source (20) into a third light beam (S3) and directs the third light beam (S3) toward the boundary surface (106). The light rays of the third light beam (S3) enter the light-transmitting body (100) again and are projected by a projection device (500) as a sign light light beam (SL) onto a light distribution area located above a light-dark boundary, and are imaged as a sign light light distribution.SELECTED DRAWING: Figure 1

Claims

1. An illumination device for automotive floodlights for generating light distribution, The irradiation device (1) is At least one light source (10), Light-transmitting material (100) and At least one light incident element (101) for injecting light emitted by at least one of the light sources (10) into the light transmittance (100), It has a projection device (500), The light-transmitting body (100) has an aperture device (103) having an aperture edge region (104), and the aperture device (103) is disposed between the light incident element (101) and the projection device (500) in the direction of light propagation. Through the light incident element (101), light (S10) from at least one of the light sources (10) enters the light transmittance body (100), and this light propagates within the light transmittance body (100) as a first luminous beam (S1). The aperture device (103) modifies the first luminous beam (S1) into a modified second luminous beam (S2), and the second luminous beam (S2) is imaged by the projection device (500) as a luminous beam (LV) to be generated for front-range luminous distribution or low-beam luminous distribution. The light distribution (LV) has a light-dark boundary (HD), and the light-dark boundary (HD) is determined by the aperture edge region or aperture edge (104) of the aperture device (103). Furthermore, the aperture device (103) is composed of at least one interface surface (106) of the light transmittance (100), and The irradiation device (1) includes at least one further light source different from the light source (10), a so-called sign light light source (20), and a further sign light incident element (120) assigned to the sign light light source (20), wherein the sign light incident element (120) shapes the light (S20) emitted by the sign light light source (20) into a third luminous beam (S3), directs the third luminous beam (S3) toward the interface surface (106), and thereby the rays of the third luminous beam (S3) enter the light-transmitting body (100). At least a portion, or all, of the light rays (S4) that again enter the light-transmitting body (100) are projected by the projection device (500) as a sine light beam (SL) onto the region (B) located above the light-dark boundary (HD) of the light distribution (LV), and are imaged as a sine light distribution (SV). The illumination device (1) includes an additional light module, which is configured to generate an additional high-beam light distribution, which is configured to generate a segmented additional light distribution (FLV) which includes two or more light segments (SEGs), and the additional light distribution (FLV) and the light distribution (LV) together constitute a single high-beam light distribution when all the light segments (SEGs) of the additional light distribution (FLV) are illuminated, and in low-beam operation, at least one of the light sources (10) acts to generate the light distribution (LV). The sign light source (20) is activated to generate the sign light distribution (SV), and the additional light module is deactivated. Furthermore, in partial high beam operation, at least one of the light sources (10) is activated to generate the distribution (LV), and the additional light module is activated, and the additional light module is operated such that one or more of the light segments (SEG) are not illuminated, and the sign light source (20) for generating the sign light distribution (SV) is dimmed or deactivated. An irradiation device characterized by the following.

2. The light incident element (120) of the sign light is in contact with the light incident element (101) in a common contact area or common contact surface (130). The irradiation device according to claim 1, characterized by the following:

3. The contact region or contact surface (130) is positioned as follows: at least a portion of the light ray (S130) coming from the light source (10) and entering the sign light incident element (120) through the contact region or contact surface (130) is positioned so that it is totally reflected at the light emitting surface (122) of the sign light incident element (120). The irradiation device according to claim 2, characterized by the above.

4. The contact region or contact surface (130) is positioned as follows: that at least a portion of the light ray (S131) ​​coming from the light source (10) and striking the light incident element interface surface (131) of the light incident element (101) in front of the contact region or contact surface (130) is positioned so that it is totally reflected in the light incident element interface surface (131) towards the light transmittance (100) within the light incident element (101). The irradiation device according to claim 2, characterized by the above.

5. The light incident surface (121) of the sine light incident element (120) is formed in a concave shape, and / or the light emission surface (122) of the sine light incident element is formed in a convex shape. The irradiation device according to claim 1, characterized by the following:

6. The sign light incident element (120) has a focal point (F121), and the sign light source (20) is substantially positioned at the focal point (F121). The irradiation device according to claim 5, characterized by the above.

7. The light incident element (120) and the light incident element (101) are made integrally, or integrally and of the same material. The irradiation device according to claim 1, characterized by the following:

8. At least one of the light sources (10) and the sign light source (20) are arranged such that the main light emission direction (X1) of at least one of the light sources (10) and the main light emission direction (X2) of the sign light source (20) are parallel to each other. The irradiation device according to claim 1, characterized by the following:

9. At least one of the light sources (10) and the sign light source (20) are arranged in a common plane, and / or at least one of the light sources (10) and the sign light source (20) are arranged on a common printed circuit board. The irradiation device according to claim 1, characterized by the following:

10. The light emitted by the sign light source (20) is radiated directly toward the interface surface (106) by the sign light incident element (120). The irradiation device according to claim 1, characterized by the following:

11. The light incident element (101) shapes the light emitted by the light source (10) and incident into the light incident element (101) into the first light beam (S1). The irradiation device according to claim 1, characterized by the following:

12. The first light beam (S1) is directed towards the aperture edge region or the aperture edge (104) region of the aperture device (103). The irradiation device according to claim 11, characterized by the above.

13. The sign light incident element (120) uses the third light beam (S3) to illuminate the aperture device (103) or at least a part of the aperture device (103), the interface surface (106), such that the maximum illuminance of the light pattern (L106) formed on the interface surface (106) is located at a distance greater than zero from the aperture edge (104), and / or the light pattern (L106) is located at a distance greater than zero from the aperture edge (104). The irradiation device according to claim 1, characterized by the following:

14. The sign light incident element (120) is configured such that the light beam (S3) emitted from the sign light incident element (120) is spread out in the horizontal direction. The irradiation device according to claim 1, characterized by the following:

15. The sign light incident element (120) is configured such that the light rays of the light beam (S3) emitted from the sign light incident element (120) are focused in the vertical direction. The irradiation device according to claim 1, characterized by the following:

16. The interface surface (106) is formed in a convex shape in the vertical direction. The irradiation device according to claim 1, characterized by the following:

17. The interface (106) is located within the Petzval surface or focal plane of the projection device (500), or substantially located within the Petzval surface or focal plane of the projection device (500). The irradiation device according to claim 16, characterized by the above.

18. The interface surface (106) of the light-transmitting body (101) has a light-scattering structure or an uneven surface. The irradiation device according to claim 1, characterized by the following:

19. An automobile floodlight comprising at least one illumination device according to any one of claims 1 to 18.

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