Lamp for vehicle
The vehicle lamp's adaptive aperture device with displaceable openings on a film member simplifies light beam control, addressing high costs and complexity in existing iris diaphragm systems, achieving efficient light intensity and distribution adjustment.
Patent Information
- Application Number
- JP2025037208
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-26
- Filing Date
- 2025-03-10
- Publication Date
- 2025-11-07
AI Technical Summary
Existing vehicle lamps with iris diaphragms have complex mechanisms that increase costs due to numerous movable components.
A vehicle lamp design featuring an adaptive aperture device with displaceable first and second openings on parallel or angled surfaces, allowing variable light beam adjustment without complex mechanisms, using a film member guided by rollers and actuators.
Enables cost-effective and efficient control of light intensity and distribution by varying the remaining light beam portion through geometrically similar or congruent openings, reducing complexity and cost.
Smart Images

Figure 2025168239000001_ABST
Abstract
Description
[Technical Field]
[0001] (Related Application Description) This application claims priority from European Patent Application No. 24172619.9 (DAS-Code: 370D), filed April 26, 2024, the entire contents of which are incorporated herein by reference.
[0002] The present invention relates to a vehicle lamp, the lamp having an image generator (imaging device) and a projection system, wherein the image generator is capable of emitting segmented light as a bundle of rays along a light path during operation of the lamp, the bundle of rays emitted during operation being projected at least partially through the projection system in front of the lamp as a segmented light distribution, and an adaptive aperture device is arranged along the light path, the aperture device partially blocking the bundle of rays during operation, so that a variable remaining portion of the bundle of rays passes through the aperture device. [Background technology]
[0003] A comparable lamp is known, for example, from DE 10 2019 118 264 A1. There, an illumination device for a motor vehicle is described. This illumination device is configured as a particularly high-resolution floodlight and includes an aperture diaphragm with a variable opening width so that the imaging quality and illumination intensity can be adapted to various requirements. An iris diaphragm is proposed as a possible configuration of the aperture diaphragm. The iris diaphragm is one known configuration of an aperture diaphragm. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] German Patent Application Publication No. 102019118264 [Patent Document 2] German Patent Application Publication No. 102022133738 [Patent Document 3] German Patent Application Publication No. 102019218776 [Patent Document 4] China Utility Model No. 206682801 [Patent Document 5] China Utility Model No. 213746568 [Patent Document 6] German Patent Application Publication No. 102020114767 [Patent Document 7] French Patent Application Publication No. 3049242 [Patent Document 8] German Patent Application Publication No. 102019202434 Summary of the Invention [Problem to be solved by the invention]
[0005] However, in the illumination device described in the above-mentioned patent application WO 2007 / 024990, such an iris diaphragm usually comprises a large number of movable components that allow the aperture width to be changed via a complex mechanism, and the practical realization of such an aperture diaphragm implemented as an iris diaphragm is associated with high costs.
[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vehicle lamp which overcomes at least the above-mentioned drawbacks. [Means for solving the problem]
[0007] The object is achieved in the lamp as described at the beginning by the following configuration: the aperture device has a first opening in a first surface and a second opening in a second surface along the light path, in operation the light beam is reduced by the first opening to a first portion of the light beam, and this first portion is reduced by the second opening to a remaining portion of the light beam, and the first opening in the first surface and the second opening in the second surface are displaceable relative to each other.
[0008] That is, according to the first aspect of the present invention, A vehicle lamp, the lamp includes an image generator and a projection system; The image generator can emit segmented light along a light path as a bundle of rays during operation of the lamp, and the emitted bundle of rays during operation is projected in front of the lamp as a segmented light distribution at least partially via the projection system; an adaptive aperture device is disposed along the light path, the aperture device being configured to partially block the light beam during operation, thereby allowing a variable remaining portion of the light beam to pass through the aperture device; the aperture device has a first opening in a first surface and a second opening in a second surface along the ray path, wherein in operation the ray bundle is reduced by the first opening to a first portion of the ray bundle, and the first portion is reduced by the second opening to a remaining portion of the ray bundle, and the first opening in the first surface and the second opening in the second surface are displaceable relative to each other; A lighting fixture characterized by the above is provided. Further, according to a second aspect of the present invention, A vehicle equipped with the lamp is provided. It should be noted that the reference numerals used in the claims of this application are intended solely to facilitate understanding of the present invention and are not intended to limit the present invention to the illustrated forms. DETAILED DESCRIPTION OF THE INVENTION
[0009] The present invention can have the following configurations. (Form 1) A vehicle lamp, the lamp includes an image generator and a projection system; The image generator can emit segmented light along a light path as a bundle of rays during operation of the lamp, and the emitted bundle of rays during operation is projected in front of the lamp as a segmented light distribution at least partially via the projection system; an adaptive aperture device is disposed along the light path, the aperture device being configured to partially block the light beam during operation, thereby allowing a variable remaining portion of the light beam to pass through the aperture device; The aperture device has a first opening in a first surface and a second opening in a second surface along the ray path, and during operation the ray bundle is reduced to a first portion of the ray bundle by the first opening, and the first portion is reduced to a remaining portion of the ray bundle by the second opening, and the first opening in the first surface and the second opening in the second surface are displaceable relative to each other. (Form 2) In the lighting fixture of the first aspect, the first opening and the second opening are preferably geometrically similar, and more preferably geometrically congruent. (Form 3) In the lamp according to the first or second aspect, it is preferable that the first opening is configured symmetrically along a first axis of symmetry, and the second opening is configured symmetrically along a second axis of symmetry. (Form 4) In the lamp fixture described in form 3, it is preferable that the first opening has a first opening center having a first opening radius and a second opening center having a second opening radius, the second opening has a third opening center having a third opening radius and a fourth opening center having a fourth opening radius, the first opening radius is equal to the third opening radius, the second opening radius is equal to the fourth opening radius, and the first opening radius is larger than the second opening radius, and the first opening center and the second opening center are arranged on the first axis of symmetry, and the third opening center and the fourth opening center are arranged on the second axis of symmetry. (Form 5) In the lamp described in any one of forms 1 to 4, it is preferable that the projection system includes at least three optical lenses, preferably five optical lenses, and that the first surface and the second surface are located after the first lens in the light path, or preferably between the third lens and the fourth lens. (Form 6) In the lamp according to any one of the first to fifth aspects, it is preferable that the first surface and the second surface are oriented parallel to each other. (Form 7) In the lamp according to any one of the first to sixth aspects, it is preferable that the first surface and the second surface are oriented at a predetermined angle to each other. (Form 8) In the lamp described in any one of forms 1 to 7, it is preferable that the first opening and the second opening are arranged on a film member, the film member is guided along the first surface and the second surface via at least one direction-changing roller, and the film member is movable via an actuator, whereby the first opening in the first surface and the second opening in the second surface can be simultaneously displaced relative to each other via the actuator. (Form 9) In the lighting fixture described in form 8, it is preferable that the film member is preloaded (pre-biased) at a first end portion via a spring and is connected to the actuator at a second end portion of the film member opposite the first end portion. (Form 10) In the lamp according to the eighth aspect, it is preferable that the film member is closed (endless) by itself. (Form 11) A vehicle equipped with the lamp according to any one of aspects 1 to 10.
[0010] In this case, "opening" means an opening for light. That is, at least in the immediate periphery of the surface around the opening, light can pass through the opening itself without passing through the surface. As a result, the bundle of rays is reduced to a first portion of the bundle of rays upon passing through a first surface and thus through the first opening, and this first portion is reduced to a remaining portion of the bundle of rays upon passing through a second surface and thus through the second opening. The first portion of the bundle of rays and the remaining portion of the bundle of rays can be related to the respective optical flow of the bundle of rays after the respective surface along the light path.
[0011] By displacing the first and second openings relative to each other in their respective planes, the remainder of the ray bundle passing through the aperture device can be varied without the need to resort to complex mechanisms.
[0012] In this case, the first opening and the second opening are advantageously geometrically similar, preferably geometrically congruent.
[0013] To facilitate implementation of the adaptive aperture device within a lamp, the first opening can be configured symmetrically along a first axis of symmetry, and the second opening can be configured symmetrically along a second axis of symmetry.
[0014] In this case, preferably, the first opening has a first opening center with a first opening radius and a second opening center with a second opening radius, and the second opening has a third opening center with a third opening radius and a fourth opening center with a fourth opening radius, wherein the first opening radius is equal to the third opening radius and the second opening radius is equal to the fourth opening radius, wherein the first opening radius is greater than the second opening radius, and wherein the first opening center and the second opening center are arranged on a first axis of symmetry, and the third opening center and the fourth opening center are arranged on a second axis of symmetry.
[0015] Advantageously, the projection system may include at least three optical lenses, preferably five optical lenses, wherein the first and second surfaces are located after the first lens in the light path or preferably between the third and fourth lenses.
[0016] Advantageously, the first and second surfaces are oriented parallel to one another.
[0017] To improve the effect of the adaptive aperture device on the segmented projected light distribution, the first and second surfaces may be oriented at an angle to each other.
[0018] Advantageously, the first opening and the second opening are arranged on a film member (or a strip-shaped member), wherein the film member is guided along the first and second surfaces via at least one deflection roller, wherein the film member is movable via an actuator, whereby the first opening in the first surface and the second opening in the second surface can be simultaneously (slidably) displaced relative to each other via the actuator.
[0019] In this case, the remaining part of the light beam can be changed particularly easily if the film element is preloaded at a first end portion via a spring and is connected to an actuator at a second end portion of the film element opposite the first end portion.
[0020] Alternatively, the film member can be self-closed (ie, both ends of the film member are connected so that the film member is continuous or endless).
[0021] The present invention further relates to an automobile equipped with the above lamp.
[0022] The invention will now be described in greater detail with reference to the drawings, which are illustrative and not intended to be limiting. [Brief explanation of the drawings]
[0023] [Figure 1] FIG. [Figure 2] FIG. 2 is a cross-sectional view of one lighting fixture. [Figure 3a] FIG. 2 is a diagram schematically illustrating a film member having a first opening and a second opening. [Figure 3b] FIG. 3b is a schematic cross-sectional view of the film member of FIG. 3a. [Figure 4a] 1A and 1B show a first possible embodiment of an adaptive aperture device with one film element. [Figure 4b] 10A and 10B show a second possible embodiment of an adaptive aperture device with one film element. [Figure 4c]10A and 10B show a third possible embodiment of an adaptive aperture device with one film element. [Figure 4d] 10A and 10B show a fourth possible embodiment of an adaptive aperture device with one film element. [Figure 5a] FIG. 2 shows a first position of the adaptive aperture device. [Figure 5b] FIG. 10 shows the remainder of the ray bundle arising from a first position of the adaptive aperture device. [Figure 6a] FIG. 10 shows a second position of the adaptive aperture device. [Figure 6b] FIG. 10 shows the remainder of the ray bundle resulting from a second position of the adaptive aperture device. [Example]
[0024] FIG. 1 shows a lamp unit 1. The lamp unit 1 includes an image generator (imaging device) 2 and a projection system 3, which are shown in FIG. 2. The projection system 3 is received in a holder 30, which can be connected to a support 31. The support 31 can be configured as a heat sink. The image generator 2 can be disposed on the support 31.
[0025] As shown in FIG. 2 , when the lighting fixture 1 is in operation, the light segmented by the image generator 2 is emitted along a light ray path as a light ray bundle 20. That is, the operation of the lighting fixture 1 is determined by whether or not the image generator 2 emits light. This means that the lighting fixture 1 is in operation when light is emitted by the image generator 2. The light ray path defines a path having a predetermined direction that exits the image generator 2. In this case, this path coincides with the optical axis X of the projection system 3. The image generator 2 can include a matrix having a large number of LED light sources, which can be individually controlled to emit the segmented light as the light ray bundle 20. In this case, the matrix can consist of several thousand LED light sources. The image generator 2 can also include alternative known modulation technologies, such as an LCD (liquid crystal display) or a DMD (digital mirror device), to emit the segmented light as the light ray bundle 20.
[0026] During operation of the lamp 1, this light beam 20 is projected as a segmented light distribution at least partially through the projection system 3 in front of the lamp 1. The projection system 3 may have multiple lenses 3a, 3b, 3c, 3d, and 3e arranged along the light path. For example, the projection system 3 may have at least three lenses 3a, 3c, and 3e. As shown, the projection system 3 preferably has five lenses 3a, 3b, 3c, 3d, and 3e.
[0027] The lamp 1 comprises an adaptive aperture device 4 arranged along the light path and receivable in a holder 30 similar to the projection system 3. The aperture device 4 blocks at least a portion of the light beam 20 leaving the image generator 2 during operation of the lamp 1, so that the remaining portion of the light beam 20 passes through the aperture device 4.
[0028] The aperture device 4 has a first opening 5 in the first surface 6 and a second opening 7 in the second surface 8 along the ray path. Both the first surface 6 and the second surface 8 are preferably positioned perpendicular to the optical axis X of the projection system 3. During operation, light can pass through the openings 5, 7. Light is blocked at least in the immediate periphery around the openings 5, 7 in the respective surfaces 6, 8. As a result, during operation of the lamp 1, the bundle of rays 20 is reduced to a first portion of the bundle of rays 20 upon passing through the first surface 6 and thus through the first opening 5, and this first portion is subsequently reduced to a remaining portion of the bundle of rays 20 upon passing through the second surface 8 and thus through the second opening 7. Since the first opening 5 in the first surface 6 and the second opening 7 in the second surface 8 are displaceable (slidable) relative to each other, an adaptive aperture device 4 is created, by which the remaining portion of the bundle of rays 20 can be changed. The details are given in the description of Figures 5b and 6b. The first part of the ray bundle 20 and the remaining part of the ray bundle 20 can be related to the respective optical flows of the ray bundle 20 after the respective surfaces 6, 8 along the ray path.
[0029] The first surface 6 and the second surface 8 are preferably located in the beam path between the third lens 3c and the fourth lens 3d of the projection system 3, as shown.
[0030] The first opening 5 and the second opening 7 can be arranged on a plurality of light-absorbing plates that are movable relative to one another and are arranged in the first surface 6 or the second surface 8, respectively. However, preferably, the first opening 5 and the second opening 7 are arranged on a single film member (or strip-shaped member) 9.
[0031] The first opening 5 and the second opening 7 can be geometrically similar, and preferably are geometrically congruent, as shown in Figure 3a.
[0032] The first opening 5 may be arranged symmetrically along a first axis of symmetry 53, and the second opening 7 may be arranged symmetrically along a second axis of symmetry 73.
[0033] The first opening 5 and / or the second opening 7 may have an oblong shape, as well as an elliptical shape or other shapes that are not perfectly circular.
[0034] Preferably, the first opening 5 and the second opening 7 are formed as shown in Figure 3a. Here, the first opening 5 has a first opening center 51m having a first opening radius 51r and a second opening center 52m having a second opening radius 52r. Further, here, the second opening 7 has a third opening center 71m having a third opening radius 71r and a fourth opening center 72m having a fourth opening radius 72r. Here, the first opening radius 51r is equal to the third opening radius 71r, the second opening radius 52r is equal to the fourth opening radius 72r, and the first opening radius 51r is larger than the second opening radius 52r. Here, the first opening center 51m and the second opening center 52m are arranged on a first axis of symmetry 53, and the third opening center 71m and the fourth opening center 72m are arranged on a second axis of symmetry 73.
[0035] As shown in Figure 3a, the openings 5 and 7 can be arranged on a common film member 9. This film member 9 has a first end portion 9a and a second end portion 9b opposite the first end portion 9a. The first opening 5 and the second opening 7 are arranged between the first end portion 9a and the second end portion 9b of the film member 9. As shown in Figure 3b, the film member 9 has a predetermined thickness D between a first film member surface portion 9c and a second film member surface portion 9d opposite the first film member surface portion 9c. This thickness D can be 0.2 mm.
[0036] The film element 9 preferably has a temperature resistance between -40°C and +95°C. Furthermore, the film element 9 is preferably made substantially completely of a light-absorbing material. The film element 9 can be configured as a composite film element with woven fibers, for example, textile fibers, to achieve a predetermined tear strength.
[0037] 4a to 4d show cross-sectional views of various embodiments of the adaptive aperture device 4 with a film element 9, without showing the remaining elements of the lamp 1 for clarity of the drawings. In those shown embodiments, the film element 9 is movable via an actuator 12, whereby the first opening 5 in the first face 6 and the second opening 7 in the second face 8 are simultaneously (slidably) displaceable relative to each other via the actuator 12.
[0038] 4a shows a first possible embodiment of the aperture device 4 with a film element 9, which is guided along the first side 6 and the second side 8 via deflection rollers 10, so that the second film element surface 9d is partially facing towards itself. At the first end 9a, the film element 9 is preloaded via a spring 13, and at the second end 9b, the film element 9 is connected to an actuator 12.
[0039] FIG. 4b shows a second possible embodiment of the aperture device 4 with the film element 9. In this embodiment, the aperture device 4 also comprises a deflection roller 10 and an actuator 12. In this embodiment, the film element 9 is closed on itself (i.e., both ends of the film element 9 are connected, making the film element continuous or endless). As in the embodiment of FIG. 4a, the second film element surface 9d is partially facing itself. Furthermore, two tension rollers 11 are shown, which allow a defined distance A between the facing second film element surface 9d. This distance A can be between 0.1 mm and 10 mm, preferably between 0.1 mm and 2 mm.
[0040] FIG. 4c shows a third possible embodiment of the aperture device 4 with a film member 9, in which case no tension roller 11 is provided.
[0041] 4a-4c, the first surface 6 and the second surface 8 are oriented parallel to one another. The film member 9 is therefore guided accordingly, so that the first opening 5 can be (slidably) displaced in the first surface 6 and the second opening 7 can be (slidably) displaced in the second surface 8. Both the first surface 6 and the second surface 8 can be oriented perpendicular to the optical axis X of the projection system 3 (see FIGS. 2, 5b, 6b).
[0042] It may be useful to orient the first surface 6 and the second surface 8 at a predetermined angle 14 relative to each other. Such an embodiment is shown in FIG. 4d, which includes two deflecting rollers 10. FIG. 4d therefore shows a fourth embodiment of an aperture device 4 with a film element 9. By means of both deflecting rollers 10, the film element 9 is guided along the first surface 6 and the second surface 8, so that the first opening 5 is guided along the first surface 6 and the second opening 7 is guided along the second surface 8, with the first surface 6 and the second surface 8 being oriented at the predetermined angle 14 relative to each other. The angle 14 may, for example, be between 0.1° and 45°. With regard to the orientation relative to the optical axis X of the projection system 3, the first surface 6 or the second surface 8 can be oriented perpendicular to this optical axis X.
[0043] Figure 5a shows a plan view of the aperture device 4 in a second embodiment as seen from the image generator 2, where the geometry of the first opening 5 and the second opening 7 is formed according to the embodiment shown in Figure 3a. The aperture device 4 is in a first position, in which the first opening center 51m and the third opening center 71m coincide with the optical axis X of the projection system 3.
[0044] FIG. 5b illustrates the attenuation of the bundle of rays 20 resulting from the first position of the aperture device 4. The bundle of rays 20 leaves the image generator 2 along a ray path, where it passes through the first lens 3a, the second lens 3b, and the third lens 3c of the projection system 3. The aperture device 4 is arranged between the third lens 3c and the fourth lens 3d of the projection system 3. The first opening 5 of the aperture device 4 is arranged in the first surface 6, and the second opening 7 of the aperture device 4 is arranged in the second surface 8. A portion of the bundle of rays 20 strikes the first film element surface 9c of the film element 9 and is blocked thereby. This means that the bundle of rays 20 is attenuated to a first portion of the bundle of rays 20 upon passing through the first surface 6, and therefore through the first opening 5. This first portion of the bundle of rays 20 propagates along the ray path and partially strikes the second film element surface 9d. As a result, a first portion of the bundle of rays 20 between the first surface 6 and the second surface 8 is reduced to a remaining portion of the bundle of rays 20 upon passing through the second surface 8 and thus through the second opening 7. The remaining portion of the bundle of rays 20 therefore exists after the second surface 8 in the direction of the ray path and passes through the fourth lens 3d and the fifth lens 3e. As a result, the bundle of rays 20 emitted during operation is projected in a reduced form via the projection system 3 in front of the lamp 1 as a segmented light distribution.
[0045] FIG. 6a shows the aperture device 4 in the second position as seen by the image generator 2. The transition from the first position to the second position, i.e., the simultaneous (sliding) displacement of the first opening 5 in the first surface 6 and the second opening 7 in the second surface 8 relative to each other, can be performed by the actuator 12 already described (see FIGS. 4a to 4d). In this second position, the second aperture center 52m and the fourth aperture center 72m coincide with the optical axis X of the projection system 3. Also, as in the first position of the aperture device 4, the bundle of rays 20 is first reduced to a first portion, which is then reduced to a remaining portion of the bundle of rays 20. The remaining portion of the bundle of rays 20 resulting from the second position of the aperture device 4 is smaller than the remaining portion of the bundle of rays 20 resulting from the first position of the aperture device 4. It is clear that the remaining portion of the bundle of rays 20 can be changed by the adaptive aperture device 4.
[0046] Although only two positions of the aperture device 4 are shown, any number of positions may be provided. In combination with other geometrically shaped openings 5, 7 and corresponding orientations of the surfaces 6, 8 with respect to one another, adaptive aperture devices 4 can be created that can be adapted to further requirements.
[0047] Therefore, the present invention is not limited to the illustrated embodiments, but is defined by the entire scope of protection of the claims. Individual features of the invention or embodiments can also be taken and combined with each other. Additional reference signs in the claims are exemplary and do not limit the claims, but merely serve to make the claims easier to understand.
[0048] The disclosures of the above-mentioned patent and non-patent documents are incorporated herein by reference. Furthermore, within the scope of the entire disclosure of the present invention (including the scope of the claims), modifications and adjustments to the embodiments are possible based on the basic technical concepts thereof. Furthermore, within the scope of the entire disclosure of the present invention, various combinations and selections of the various disclosed elements (including each element of each claim, each element of each embodiment, each element of each drawing, etc.) are possible. In other words, the present invention naturally includes various modifications and alterations that would be possible by a person skilled in the art in accordance with the entire disclosure and technical concepts, including the scope of the claims. In particular, with regard to the numerical ranges described herein, any numerical value or subrange included within the range should be construed as being specifically described, even if not otherwise specified. [Explanation of symbols]
[0049] 1 lamp 2 Image generator 20 ray bundle 3 Projection System 30 Holder 31 Supports 3a lens 3b lens 3c lens 3D Lens 3e lens 4 Aperture device 5 First opening 51m Center of 1st opening 51r 1st opening radius 52m Center of 2nd opening 52r 2nd opening radius 53 First axis of symmetry 6 Front page 7 Second opening 71m Center of 3rd opening 71r 3rd opening radius 72m Center of 4th opening 72r 4th opening radius 73 Second axis of symmetry 8 Side 2 9 Film materials 9a First end 9b Second end 9c first film member surface portion 9d Second film member surface portion 10 Direction change roller 11 Tension roller 12 Actuators 13 Spring 14 angles A interval D specified thickness X optical axis
Claims
1. A vehicle lighting fixture (1), The lighting fixture (1) comprises an image generator (2) and a projection system (3), The light segmented by the image generator (2) during operation of the lighting fixture (1) can be emitted along a light path as a bundle of rays (20), and the bundle of rays (20) emitted during operation is projected in front of the lighting fixture (1) as a segmented light distribution at least partially via the projection system (3); an adaptive aperture device (4) is arranged along the light path, and during operation, the aperture device (4) partially blocks the light bundle (20), so that a variable remaining portion of the light bundle (20) passes through the aperture device (4); the aperture device (4) has a first opening (5) in a first surface (6) and a second opening (7) in a second surface (8) along the ray path, and in operation the ray bundle (20) is reduced by the first opening (5) to a first portion of the ray bundle (20) and the first portion is reduced by the second opening (7) to a remaining portion of the ray bundle (20), and the first opening (5) in the first surface (6) and the second opening (7) in the second surface (8) are displaceable relative to each other; A lighting fixture characterized by:
2. the first opening (5) and the second opening (7) are geometrically similar, preferably geometrically congruent; 2. The lamp according to claim 1,
3. the first opening (5) is symmetrically arranged along a first axis of symmetry (53), and the second opening (7) is symmetrically arranged along a second axis of symmetry (73); 2. The lamp according to claim 1,
4. the first opening (5) has a first opening center (51m) having a first opening radius (51r) and a second opening center (52m) having a second opening radius (52r); the second opening (7) has a third opening center (71m) having a third opening radius (71r) and a fourth opening center (72m) having a fourth opening radius (72r), the first opening radius (51r) is equal to the third opening radius (71r), the second opening radius (52r) is equal to the fourth opening radius (72r), the first opening radius (51r) is greater than the second opening radius (52r), the first opening center (51m) and the second opening center (52m) are arranged on the first axis of symmetry, and the third opening center (71m) and the fourth opening center (72m) are arranged on the second axis of symmetry; 4. The lamp according to claim 3,
5. the projection system (3) comprises at least three optical lenses (3a, 3c, 3e), preferably five optical lenses (3a, 3b, 3c, 3d, 3e), the first surface (6) and the second surface (8) being located after the first lens (3a) in the light path, or preferably between the third lens (3c) and the fourth lens (3d); 2. The lamp according to claim 1,
6. said first surface (6) and said second surface (8) being oriented parallel to each other; 2. The lamp according to claim 1,
7. the first surface (5) and the second surface (6) are oriented at a predetermined angle (14) to each other; 2. A lamp (1) according to claim 1, characterized in that:
8. the first opening (5) and the second opening (7) are arranged on a film member (9), the film member (9) is guided along the first surface (6) and the second surface (8) via at least one direction-changing roller (10), the film member (9) is movable via an actuator (12), whereby the first opening (5) in the first surface (6) and the second opening (7) in the second surface (8) are simultaneously displaceable relative to each other via the actuator (12); 2. A lamp (1) according to claim 1, characterized in that:
9. the film member (9) is preloaded at a first end (9a) via a spring (13) and is connected to the actuator (12) at a second end (9b) of the film member (9) opposite the first end (9a); 9. The lamp according to claim 8,
10. the film member (9) is closed on itself; 9. The lamp according to claim 8,
11. A motor vehicle equipped with a lamp (1) according to any one of claims 1 to 10.
Citation Information
Patent Citations
Vehicular lighting fixture and vehicle including vehicular lighting fixture
JP2017174735A
Micro projection light module for a lighting device for a motor vehicle
JP2018531495A
Excavation construction monitoring device and ground improved structure construction quality control method using the same
KR1020240163917A
Lamp for vehicle
US20200180504A1
Lamp for vehicle
US20230358388A1