EP3757450A1 - Illumination device of a motor vehicle headlight - Google Patents

Abstract

Lighting device of a motor vehicle headlight comprising a projection optical system (1) and a light source unit (2), wherein the light source unit comprises a surface (20), wherein the light source unit (2) can generate a light image on the surface (20), the light source unit (20) being able to generate a light image on the surface (20) ) The light image that can be generated by means of the projection optical system (1) can be projected in front of the lighting device in the form of a light distribution, the light source unit (2) comprising a support structure (3), the support structure (3) having an opening (30), the opening (30 ) is arranged and designed to match the surface (20) and the light image can be generated at least on one side (201) of the surface (20) facing the projection optical system (1), the projection optical system (1) having guide elements (10) and the support structure (3) has elongated guides (31) corresponding to the guide elements (10), the guide elements (10) in the elongated Guides (31) are arranged such that they can be guided along a longitudinal direction (X) of the elongated guides (31), the projection optical system (1) resting on the support structure (3) and being movable along the longitudinal direction (X).

Description

The invention relates to a lighting device for a motor vehicle headlight which comprises a projection optical system and a light source unit. The lighting device is preferably a lighting device that functions according to the projection principle. The light source unit comprises a surface which is preferably perpendicular to an optical axis of the projection optical system, wherein the light source unit can generate a light image on the surface. Preferably, the size of the area is essentially the same as the size of the light image. The light image that can be generated on the surface is by means of the projection optical system in front of the lighting device in the form of a light distribution, e.g. a low beam distribution, a floor projection light distribution or high beam distribution, projectable. The light source unit also comprises a support structure, the support structure having an opening, the opening being arranged and designed to match the surface and the light image being able to be generated at least on one side of the surface facing the projection optical system. For example, a distance between the surface (or the light image) and the opening is smaller, preferably much smaller than the dimensions of both the opening and the light image. This means that the surface is arranged to match the opening, for example on or in the opening, so that when the light image is generated on the surface, all of the light emanating from the light image generated on the surface passes through the opening (in the direction of the projection optical system).

The invention also relates to a motor vehicle headlight with at least one such lighting device.

In the case of lighting devices known from the prior art, the projection optical systems are either not adjustable at all with respect to the light source or can only be adjusted with the aid of complex adjustment mechanisms.

The object of the present invention is therefore to create a lighting device for a motor vehicle headlight which is simple and can be adjusted reliably.

This object is achieved according to the invention with a lighting device of the type mentioned above in that the projection optical system has guide elements and the support structure has elongated guides corresponding to the guide elements, the guide elements in the elongated guides along a longitudinal direction preferably running parallel to an optical axis of the projection optical system elongated guides are arranged so that they can be guided, wherein the projection optical system rests on the support structure in a fastenable manner and - before the projection optical system is fastened to the support structure - is movable along the longitudinal direction.

Because the preferably centered projection optics system rests on the support structure and can be fastened to the support structure (in a desired position), the invention makes use of gravity, the ability to be guided along the longitudinal direction (before fastening) a simple and safe positioning of the projection optics system in Relation to the area with the photograph allows. Errors (lens shape deviations, lens thickness tolerances, ...) can be at least partially compensated for in order to achieve the sharpest possible image, which is particularly important for logo projections. The aforementioned desired position is obtained by moving the projection optical system with respect to the light source unit along the longitudinal direction and at the same time analyzing the generated light distribution, i. when the lighting device is put into operation, determined with regard to its quality, for example with regard to its sharpness.

The projection optics system is also referred to as an objective in the following. Two elongate guides and guide elements are preferably provided in each case. The guide elements are also elongated, for example. It can be useful if exactly one guide element is provided for each elongated guide. The elongated guides can be designed, for example, as trough-shaped receptacles / depressions.

The surface can preferably be formed by mirror surfaces of mirrors of a micromirror array of a surface light modulator, for example a DMD chip. However, a light-emitting surface of an LED light source can also function as a surface. In addition, the surface can be used as a light conversion medium or light conversion medium plate be designed that can convert light from a laser light source, for example a laser diode, into substantially white light. The surface is preferably flat or not curved. It goes without saying that in the aforementioned cases the LED light sources or laser light source are part of the light source unit.

The projection optical system is preferably arranged downstream of the light source unit in the main emission direction (parallel to the longitudinal direction).

In a preferred embodiment, the lighting device can be designed as a light module. That is, the lighting device in an assembled state, i. when the projection optical system is attached to the support structure, forms a structural unit and does not consist of structurally separate elements or sub-units, which are distributed at different locations in a motor vehicle headlight, for example.

It can advantageously be provided that the projection optics system comprises a projection optics holder and at least one projection optics, the at least one projection optics being enclosed in the projection optics holder, the guide elements being arranged on the projection optics holder.

Lenses (preferably three are provided) such as e.g. concave, convex, bi-concave, -convex, plane-concave or -convex can be used. The lenses can consist of different materials (of materials each having a different refractive index) and be positioned at different distances from one another. For example, different lenses can have different refractive indices matched to one another. In particular, the lenses made of plastics, such as e.g. made of PC (polycarbonate) PMMA (polymethyl methacrylate), or from optical glasses, e.g. be made of flint or crown glass.

In a preferred embodiment it can be provided that the guide elements are designed in one piece with the projection optics holder and in particular form a monolithic structure with the projection optics holder.

It can be expedient here if the projection optics holder rests on the carrier structure, is movable along the longitudinal direction and can be fastened to the carrier structure (in a desired position).

In a preferred embodiment it can advantageously be provided that the projection optics system comprises two or more, preferably three, projection optics.

It can be expedient here if the projection optics system has an achromatic and / or apochromatic effect or the projection optics are designed and positioned in relation to one another in such a way that the projection optics system has an achromatic and / or apochromatic effect.

It can advantageously be provided that the guide elements are designed as elevations, the elevations being trapezoidal in a section arranged transversely to the longitudinal direction.

In addition, it can advantageously be provided that the elevations protrude downwards.

In a preferred embodiment, it can advantageously be provided that the elongated guides are designed as, for example, trough-shaped depressions or as holes, through holes and / or elongated holes, the guide elements, for example, either partially or entirely being received in the elongated guides.

Furthermore, it can be advantageous if the projection optics system can be moved within a range of motion defined by the length of the elongated guides and the projection optics system, preferably the projection optics holder, has an attachment area and the support structure has a counter area corresponding to the attachment area, the movement area, attachment area and the counter area, correspond to one another in such a way that the projection optics system, preferably its projection optics holder, can be attached to the support structure in any position within the range of motion such that the attachment area of the projection optics system is at least partially attached to the opposite area of the support structure.

In connection with the present invention, the term "movement range" is understood to mean that length within which the projection optical system can be moved with respect to the light source unit along the optical axis (of the projection optical system) when the guide elements are arranged in the elongated guides.

In addition, it can advantageously be provided that the range of motion can also be determined by the length of the guide elements (along the longitudinal direction), e.g. Length of the elevations, is defined.

It can be provided that the projection optics system, preferably its projection optics holder, is fastened to the carrier structure by screwing, gluing, riveting or welding.

It can be useful if the fastening area has at least two, preferably three, through openings and the mating area has at least two, preferably three receptacles, each receptacle corresponding to a through opening, with different receptacles corresponding to different through openings, the fastening area on the mating area by means of at least two, preferably three fastening elements, for example screws, which can be received in the through openings and in the receptacles can be fastened.

It can be advantageous if the through openings are designed as elongated holes extending in the direction of the optical axis, the length of which corresponds to the range of movement.

It can advantageously be provided that the fastening area is arranged on the outer circumference of the projection optics holder, the through openings being arranged distributed over the area so that they offer a better hold of the projection optics system on the carrier structure.

In a preferred embodiment it can be provided that the through openings or the receptacles are arranged in a triangle.

It can be useful if the location (or the desired position) is selected as a function of a desired image scale or desired image sharpness.

In a particularly preferred embodiment it can be provided that the projection optics system, preferably the projection optics holder, has a handling area which is formed on mutually opposite sides of the projection optics system, preferably the projection optics holder.

The handling area can, for example, enable in particular automated handling or automated detection of the projection optical system 1. The handling area can e.g. By an industrial robot, e.g. an assembly robot can be detected, which carries out a precise longitudinal adjustment in the axial direction (in the direction of the optical axis) in order to achieve, for example, a specified image scale or a specified image sharpness.

Further advantages can result if the handling area is designed as lateral elements, preferably tabs, protruding from the projection optics system, preferably from the projection optics holder.

In addition, it can be provided that the lateral tab-shaped elements, preferably tabs, extend from the projection optics holder in a direction orthogonal to the optical axis, preferably horizontally.

In addition, it can be advantageous if the ends of the elongated guides each have a stop surface so that the respective guide element can only be moved from a first end to a second end of the elongated guide opposite the first end.

In a preferred embodiment, it can advantageously be provided that the support structure has arms, the arms of the support structure protruding in the direction of the projection optical system, the elongated guides being formed in the arms, and the projection optical system preferably having laterally protruding tabs, the guide elements on the protruding tabs are arranged.

It can be useful if there are exactly two arms which are arranged to the side of the opening.

In addition, it can be useful if the arms protrude from a plane containing the opening and extend parallel to the longitudinal direction.

Particular advantages can result if the arms form a support surface for the projection optical system.

It can be useful if exactly one elongated guide is formed in each arm.

It can also be useful if the tabs are arranged on the projection optics holder. Particular advantages can result if the tabs are formed on the projection optics holder, in particular form a monolithic structure with the projection optics holder.

In a particularly preferred embodiment, it can advantageously be provided that the guide elements are arranged on the tabs, in particular are formed on the tabs. Particular advantages can result if the guide elements form a monolithic structure with the tabs. The guide elements preferably protrude downward from the tabs.

Furthermore, it can be provided that all elongated guides are of the same length.

• Fig. 1 ein Lichtmodul in einem teilmontierten Zustand in perspektivischer Ansicht;
• Fig. 2 das Lichtmodul der Fig. 1 in einem montierten Zustand;
• Fig. 3 einen Querschnitt eines vergrößerten Ausschnitts einer Trägerstruktur und eines Projektionsoptikhalters des Lichtmoduls der Figur 2;
• Fig. 4 das Lichtmodul der Figur 2, gezeigt von schräg oben, und
• Fig. 5 einen Querschnitt des Lichtmoduls der Figur 2.

The invention together with further advantages is explained in more detail below using exemplary embodiments that are illustrated in the drawing. In this shows

• Fig. 1 a light module in a partially assembled state in a perspective view;
• Fig. 2 the light module of Fig. 1 in an assembled state;
• Fig. 3 a cross section of an enlarged detail of a support structure and a projection optics holder of the light module of FIG Figure 2 ;
• Fig. 4 the light module of Figure 2 , shown diagonally above, and
• Fig. 5 a cross section of the light module of Figure 2 .

First will be on Figure 1 Referenced. This shows a light module for a motor vehicle headlight, which corresponds to a lighting device according to the invention. The light module comprises a projection optical system 1 and a light source unit 2 . Figure 1 shows a partially assembled state of the light module, in which the projection optical system 1 is not attached to the light source unit 2.

The light source unit comprises a surface 20 which is perpendicular to an optical axis X of the light module. When the light source unit 2 is in operation, it generates a light image on the surface 20, the size of which is (substantially) the same as the size of the surface 20. The Figure 1 it can be seen that the light image is generated on a side 201 of the surface 20 facing the projection optical system 1. The light image generated on the side 201 is projected by means of the projection optics system 1 in front of the light module in the form of a light distribution, preferably in accordance with the law. In the light module shown, the side 201 is formed by mirror surfaces of mirrors of a micromirror array of a surface light modulator, for example a DMD chip.

The projection optics system 1 comprises a projection optics holder 4 , in which three projection optics 5a , 5b , 5c are enclosed. The projection optics 5a, 5b, 5c are designed as non-rotationally symmetrical lenses (see Figure 5 ). The first two lenses 5a and 5b (seen from the surface 20) together form a so-called air achromat (see description of the prior art DE 10 2010 046 626 84 and in particular paragraphs [0009] to [0013]) and thus correct at least longitudinal color errors. The air achromatic lens 5a and 5b can also be designed in such a way that lateral color errors are also corrected. This can be achieved by optimizing air achromatic parameters such as lens materials, curvatures, spacing and so on. The third lens 5c in this lens triplet is a divergent lens and essentially determines the size of the light distribution, in particular its height and width.

It should be noted that the projection optics system 1 can also have other elements such as fastening clips 15 or resilient insert elements (not shown) for clamping the projection optics 5a, 5b, 5c in the projection optics holder 4.

Since the image generated on the side 201 of the surface 20 is mapped with a projection optical system 1, preferably a lens system, the light module functions according to the projection principle.

The light source unit 2 also comprises a carrier structure 3 . The carrier structure 3 has an opening 30 , the opening 30 being arranged and designed to match the surface 20. For example, the distance of the light image from the edges of the opening 30 is smaller, preferably much smaller than the dimensions of the opening 30 and the light image itself. That is, the surface 20 or the side 201 is in such a way to the opening 30, for example on or in the Opening 30, is appropriately arranged and designed that when generating the light image on the surface 20 or on the side 201 essentially all of the light emanating from the light image generated on the surface 20 or on its side 201 through the opening 30 (in the direction of the lens or the projection optics system 1) passes. The projection optical system 1 can be designed as an objective.

Furthermore, the projection optical system 1 has two guide elements 10 . The guide elements 10 according to this preferred embodiment are of identical design. The carrier structure 3 also has two elongated - likewise identical - guides 31 corresponding to the guide elements 10. Each elongated guide 31 corresponds in each case to a guide element 10, with different guides 31 corresponding to different guide elements 10. In the partially assembled state of the light module (see Figures 2 to 4 ) the guide elements 10 are arranged in the elongated guides 31 such that they can be guided along a longitudinal direction X of the elongated guides 31. The longitudinal direction X is parallel to the optical axis of the light module or the projection optical system 1. For this reason, the same reference symbol "X" is used for the terms "longitudinal direction" and "optical axis". The elongated guides 31 are designed roughly like trough-shaped receptacles or depressions (see FIG Figure 3 ).

In an assembled state, the projection optical system 1 rests on the support structure 3 and can be moved along the longitudinal direction or the optical axis X. This enables a more precise longitudinal adjustment of the projection optical system 1 in relation to the carrier structure 3, whereby a distance between the projection optical system 1 and the side 201 of the DMD chip can be varied, for example to set the image scale. I.e. in a position that corresponds to a professional installation position of the lighting device, e.g. of the light module, in a motor vehicle headlight, the lens (the projection optical system) rests on the support structure under the action of gravity. The direction of gravity corresponds to the "downward" direction.

In order to mount the projection optical system 1 on the light source unit 2, the projection optical system 1 is placed on the support structure 3 of the light source unit 2 (see arrow D in Figure 1 ), so that the guide elements 10 are received in the elongated guides 31. Thereafter, the projection optical system 1 is moved back and forth along the longitudinal direction X until an optimal position (for example with regard to sharpness and scale) with respect to the surface 20 is reached. The projection optical system 1 is then attached to the carrier structure, for example by screwing, gluing, welding.

The guide elements 10 are arranged on the projection optics holder 4. The projection optics holder 4 is formed in one piece. The projection optics holder 4 can, for example, be made of die-cast magnesium or by thixomolding or forming, or it can be designed as a plastic injection-molded part. The guide elements 10 of the light module shown are thus formed in one piece with the projection optics holder 4, and form a monolithic structure with the projection optics holder. Thus, the projection optics holder 4 of the objective 1 rests on the support structure 3, is movable along the longitudinal direction X and can be fastened to the support structure.

It should be noted at this point that the light source unit 2 can have further components that will not be discussed further here. For example, in Figure 2 Cooling fins 21 of a heat sink (not shown further) for cooling the light source unit 2 to see. The cooling ribs are designed, for example, in the form of pins arranged parallel to the longitudinal direction X of the elongated guides.

Figure 1 and 3 show that the guide elements are designed as elevations 10 protruding downward from the projection optics holder 4. The elevations extend in the longitudinal direction X of the elongated guides 31 and have a trapezoidal cross section. The elongated guides 31 accordingly also have a trapezoidal cross section. This is especially good in Figure 3 recognizable.

Because the guide elements 10 are guided or received in the elongated guides 31, the projection optical system 1 can be displaced, in particular to and fro, with respect to the light source unit 2 along the longitudinal direction X of the elongated guides 31 parallel to the optical axis. The length L of the elongated guides 31 and optionally also a length of the elevations 10 define a movement range B within which the projection optical system 1 can be moved with respect to the light source unit 2.

Furthermore is the Figures 1 , 2 and 4th It can be seen that the projection optics holder 4 has a fastening area 12 , the carrier structure 3 having a counter area 33 corresponding to the fastening area 12. The movement area B, fastening area 12 and the mating area 33 correspond to one another in such a way that the projection optics holder 4 can be fixed to the support structure 3 in any position within the movement area B in such a way that the fastening area 1 of the projection optics system 1 is at least partially on the mating area 33 of the support structure 3 is attached. In the case of the light module shown, screws 6a , 6b , 6c were selected as fastening means as examples. Gluing, riveting or welding is also possible. The fastening area 12 comprises three (elongated) through openings 120 , 121 , 122 . The opposite area 33 comprises three receptacles 330 , 331 , 332 . Each receptacle 330, 331, 332 corresponds to a through opening 120, 121, 122. Different receptacles 330, 331, 332 correspond to different through openings 120, 121, 122. The fastening area 12 is arranged on the outer circumference of the projection optics holder 4. Through openings 120, 121, 122 are distributed over the area 12 so that they offer a better hold of the projection optical system 1 on the support structure 3, in particular during the aforementioned adjustment by moving back and forth. One Synopsis of the Figures 1 and 4th it can be seen that the through openings 120, 121, 122 (and also the receptacles 330, 331, 332 are arranged in approximately a triangle, both from above and from the front.

The through openings 120, 121, 122 have a length corresponding to the movement area B in the direction of the optical axis X so that the movement area B can be used to the maximum.

The receptacles 330, 331, 332 are designed as screw domes. To fasten the projection optics system 1 or its projection optics holder 4, the (three) screws 6a, 6b, 6c are screwed through the through openings 120, 121, 122 into the screw domes 330, 331, 332.

The position in which the projection optical system 1 is fastened to the support structure is determined and selected as a function of a desired quality of the light distribution, for example a desired imaging scale.

Furthermore is the Figures 1 to 4 it can be seen that the projection optics holder 4 has a handling area 13 . The handling area 13 is formed on mutually opposite sides 14a , 14b of the projection optics holder 4. It's in the Figures 3 and 4th It is particularly easy to see that the handling area 13 protrudes from the sides 14a, 14b of the projection optics holder 4 and is approximately in the form of tabs which extend horizontally away from the projection optics holder 4.

The handling area 13 is provided in order to facilitate, in particular, automated handling or automated detection of the projection optical system 1. The handling area 13 can, for. By an industrial robot, e.g. an assembly robot can be detected, which carries out a precise longitudinal adjustment in the axial direction X, for example to achieve a specified image scale.

In the case of a light module with such an objective 1, the quality of the optical image can be improved as a result. In particular, this can improve the image sharpness and at least partially compensate for the image errors that are caused by lens shape deviations, lens thickness tolerances, etc. This can be done with those light modules or lighting devices that are used to generate logo projections or different floor projection light distributions are particularly advantageous.

The elongated guides 31 each have a stop surface 31a , 31b at their ends, so that the respective guide element 10 can only be moved from a first end to a second end of the corresponding elongated guide 31 opposite the first end. As a result, a longitudinal adjustment of the objective 1 with regard to the support structure 3 in the axial direction X (direction of the optical axis) is limited to the predetermined length L.

The Figures 1 to 3 it can be seen that the elongated guides 31 are formed in the support structure 3 in the direction of the projection optical system 1 protruding arms 32 . The arms 32 protrude from a plane containing the opening 30 and extend parallel to the longitudinal direction X of the elongated guides 31 formed therein. Exactly one elongated guide 31 is formed in each arm 32. The arms 32 are arranged to the side of the opening 30 and connected by a connecting web 34 . The connecting web 34 also protrudes from the support structure 3 in the direction of the optical axis X and partially (for example from above) closes the opening 30. The arms 32 and the connecting web 34 together offer a support surface for the projection optics holder 4 of the projection optics system 1.

The projection optics holder 4 has two tabs 11 on the opposite sides 14a, 14b. The tabs 11 protrude laterally from the projection optics holder 4 and extend flat in the horizontal direction. In addition, two of the three through openings 120 and 122 are formed in the tabs 11. The handling area 13 is formed in one piece with the tabs 11. In addition, the guide elements 10 are formed on the protruding tabs 11. It's in the Figures 1 and 3 It is particularly easy to see that each guide element 10 is arranged at a distal end 11a of the corresponding tab 11.

Such an arrangement of the guide elements 10 improves handling when adjusting / positioning the objective 1 on the support structure 3 and thus reduces the risk of the guide elements 10 tilting / tilting in the elongated guides 31. In addition, an arrangement of the guide elements 10 that is as "wide" as possible from one another offers a stable support and guidance of the projection optical system 1.

The terms "above" , "below" , "vertical" and "horizontal" used relate to a technical, practical installation position of the lighting device or the light module in a motor vehicle headlight installed in a motor vehicle, with, as already mentioned, the direction “downwards "is the same as the direction of gravity.

The object of the above description is only to provide illustrative examples and to indicate further advantages and special features of the present invention. The above description cannot therefore be interpreted as a restriction of the field of application of the invention or of the patent rights claimed in the claims. For example, in the foregoing detailed description, various features of the invention are summarized in one or more embodiments for the purpose of streamlining the disclosure. This type of disclosure is not to be construed as reflecting the intent that the claimed invention require more features than are expressly mentioned in each claim. Rather, as the following claims reflect, inventive aspects exist in less than all features of a single embodiment described above. (Thus, the following claims are hereby incorporated into this detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.)

Furthermore, while the description of the invention includes the description of one or more embodiments and certain variations and modifications, other variations and modifications are within the scope of the invention, e.g. B. within the abilities and knowledge of those skilled in the art, upon understanding the present disclosure.

The reference numbers in the claims serve only for a better understanding of the present invention and do not in any way restrict the present invention.

Claims (15)

Lighting device of a motor vehicle headlight comprising a projection optical system (1) and a light source unit (2), wherein the light source unit comprises a surface (20), wherein - The light source unit (2) can generate a light image on the surface (20), the light image that can be generated on the surface (20) being projectable in front of the lighting device in the form of a light distribution by means of the projection optical system (1), wherein - The light source unit (2) comprises a support structure (3), wherein - The support structure (3) has an opening (30), the opening (30) being arranged and designed to match the surface (20) and the light image at least on one side (201) of the surface (20) facing the projection optical system (1) ) can be generated, where - the projection optical system (1) has guide elements (10) and the support structure (3) has elongated guides (31) corresponding to the guide elements (10), the guide elements (10) in the elongated guides (31) along a longitudinal direction (X) the elongate guides (31) are arranged to be feasible, wherein - The projection optical system (1) rests on the carrier structure (3), is movable along the longitudinal direction (X) and can be fastened to the carrier structure (3). Illumination device according to claim 1, wherein the projection optics system (1) comprises a projection optics holder (4) and at least one projection optics (5a, 5b, 5c), the at least one projection optics (5a, 5b, 5c) being enclosed in the projection optics holder (4), wherein the guide elements (10) are arranged on the projection optics holder (4). Illumination device according to claim 2, wherein the projection optics holder (4) rests on the carrier structure (3), is movable along the longitudinal direction (X) and can be fastened to the carrier structure (3). Illumination device according to Claim 2 or 3, the projection optical system (1) comprising two or more projection optical systems (5a, 5b, 5c). Illuminating device according to Claim 4, the projection optical system (1) having an achromatic and / or apochromatic effect. Lighting device according to one of claims 1 to 5, wherein the projection optical system (1) can be moved within a movement area (B) defined by the length (L) of the elongated guides (31) and the projection optical system (1) has a fastening area (12) and the support structure (3) has a mating area (33) corresponding to the fastening area (12), the movement area (B), fastening area (12) and the mating area (33) corresponding to one another in such a way that the projection optical system (1) is in every position within the movement area (B) can be attached to the support structure (3) in such a way that the attachment area (12) of the projection optical system (1) is at least partially attached to the opposite area (33) of the support structure (3). Lighting device according to claim 6, wherein the fastening area (12) has at least two, preferably three through openings (120, 121, 122) and the opposing area (33) has at least two, preferably three receptacles (330, 331, 332), each receptacle (330 , 331, 332) each corresponds to a through opening (120, 121, 122), with different receptacles (330, 331, 332) corresponding to different through openings (120, 121, 122), the fastening area (12) on the opposite area (33) can be fastened by means of at least two, preferably three, fastening elements (6a, 6b, 6c), for example screws, which can be received in the through openings (120, 121, 122) and in the receptacles (330, 331, 332). Lighting device according to claim 7, wherein the through openings (120, 121, 122) are elongated and extend in the direction of the optical axis (X). Lighting device according to one of Claims 6 to 8, the position being selected as a function of a desired image scale or desired image sharpness. Lighting device according to one of claims 1 to 9, wherein the projection optics system (1), preferably the projection optics holder (4), has a handling area (13) which is located on opposite sides (14a, 14b) of the projection optics system (1), preferably the projection optics holder ( 4) is formed. Lighting device according to claim 10, wherein the handling area (13) is designed as lateral, preferably tab-shaped elements, preferably tabs, protruding from the projection optics system (1), preferably from the projection optics holder (4). Lighting device according to Claim 11, the lateral tab-shaped elements, preferably tabs, extending from the projection optics holder (4) in a direction orthogonal to the optical axis (X), preferably horizontally. Lighting device according to one of Claims 1 to 12, the elongate guides (31) each having a stop surface (31a, 31b) at their ends, so that the respective guide element (10) only extends from a first end to a second end opposite the first end End of the elongated guide (31) is movable. Lighting device according to one of claims 1 to 13, wherein the support structure (3) has arms (32), the arms (32) of the support structure (3) protruding in the direction of the projection optical system (1), the elongate guides (31) in the Arms (32) are formed, and the projection optical system (1) has protruding tabs (11), the guide elements (10) being arranged on the protruding tabs (11). Motor vehicle headlight with at least one lighting device according to one of Claims 1 to 14.

Images