Optical module and vehicle

Abstract

The optical module comprises a light source and a lens module, and the light source is provided with a first axis; the lens module comprises a condensing lens group and is provided with a second axis; a reference plane lambda perpendicular to a main optical axis is taken as a first projection plane, a light incident surface, closest to a light source, of a lens module is taken as an initial light incident surface, and an orthographic projection B of an intersection point of a first axis and the initial light incident surface on the reference plane lambda is positioned on one side of an orthographic projection C of a second axis on the reference plane lambda; and the orthographic projection D of the maximum light energy part of the emergent light beam of the lens module on the reference plane lambda is positioned on the other side of the orthographic projection C of the second axis on the reference plane lambda. The intersection point of the initial light incident surface and the first axis is arranged on one side of the second axis, light with more light sources can enter the lens module from one side of the second axis and is emitted after being processed by the lens module, and the emitted light beams deviate to the other side of the second axis; it can be guaranteed that the brightness difference of all positions of the projection pattern is small, and the uniformity of the projection pattern is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle lamps, and in particular to an optical module and a vehicle. Background Art

[0002] Car lights include lighting lamps, projection lamps, etc., among which projection lamps can be installed in door panels, chassis, bumpers, etc. to meet the diverse usage needs of customers. In order to ensure that the projection lamp has a larger projection pattern on the projection surface, the projection lamp needs to form an angle with the projection surface, that is, the projection lamp is tilted onto the projection surface; such a setting results in the pattern on the inclined projection surface being farther away from the projection lamp and having lower brightness, and there are differences in brightness at different positions of the projection pattern, resulting in poor uniformity of the projection pattern.

[0003] Therefore, it is necessary to improve the existing technology. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art and to provide an optical module and a vehicle.

[0005] According to one aspect of the present application, the present application provides an optical module, including:

[0006] A light source having a first axis, wherein the light source is configured to take the length direction of the first axis as a main light emitting direction; and

[0007] A lens module is arranged in the main light emitting direction of the light source, and the lens module includes a focusing lens group;

[0008] The lens module has a second axis, which is the main optical axis of the lens module; the lens module is configured to adjust the light beam emitted by the light source and emit the light beam toward a side away from the light source; taking a reference plane λ perpendicular to the main optical axis as the first projection plane, the light incident surface of the lens module closest to the light source is the initial light incident surface, the intersection of the first axis and the initial light incident surface is located on one side of the orthographic projection C of the second axis on the reference plane λ, and the part with the maximum light energy of the light beam emitted from the lens module is located on the other side of the orthographic projection C of the second axis on the reference plane λ on the orthographic projection D of the reference plane λ.

[0009] In one embodiment, the lens module is used to project the light emitted by the light source onto a second projection plane, and the angle between the second projection plane and the second axis is γ, satisfying: 0°<γ<90°; the intersection of the initial light incident surface and the first axis is located within the area swept by the angle γ, so that the part with the maximum light energy of the light beam projected onto the second projection plane is located outside the range of the angle γ.

[0010] In one embodiment, the first axis is parallel to the second axis.

[0011] In one embodiment, the distance between the first axis and the second axis is h mm, satisfying: 0.1≤h≤1.

[0012] In one embodiment, the first axis is not parallel to the second axis, and an intersection of the first axis and the second axis is located between the light source and the lens module.

[0013] In one embodiment, the distance between the intersection of the first axis and the initial light incident surface and the second axis is L mm, satisfying: 2≤L≤3.

[0014] In one embodiment, the angle between the first axis and the second axis is α, which satisfies: 15°≤α≤45°.

[0015] In one embodiment, the first axis is not parallel to the second axis, and an intersection of the first axis and the second axis is located on a side of the initial light incident surface away from the light source.

[0016] In one embodiment, the angle between the first axis and the second axis is β, which satisfies: 15°≤β≤45°.

[0017] In one embodiment, the first axis is not parallel to the second axis, and an intersection of the first axis and the second axis is located on a side of the light source away from the lens module.

[0018] In one embodiment, the angle between the first axis and the second axis is δ, which satisfies: 15°≤δ≤45°.

[0019] According to another aspect of the present application, a vehicle is provided, comprising any of the optical modules described above.

[0020] The beneficial effect of the present application is that the intersection of the initial light incident surface and the first axis is set on one side of the second axis, and more light energy from the light source enters the lens module from one side of the second axis, and is emitted after being processed by the lens module, and the emitted light beam is biased to the other side of the second axis; such a setting can ensure that the brightness difference at each position of the projection pattern is small, effectively improves the uniformity of the projection pattern, and improves the projection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of an optical module provided in an embodiment of the present application.

[0023] Figure 2 It is a schematic diagram of an orthographic projection on a reference plane provided in an embodiment of the present application.

[0024] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0025] Figure 4 It is a schematic diagram of another optical module provided in an embodiment of the present application.

[0026] Figure 5 yes Figure 4 Enlarged view of point E in the middle.

[0027] Figure 6 yes Figure 4 An enlarged view of another embodiment at E in the middle.

[0028] Figure 7 yes Figure 4 An enlarged view of another embodiment at E in the middle.

[0029] In the figure:

[0030] 10. Light source; 11. First axis;

[0031] 20. lens module; 21. second axis; 22. condenser lens group; 221. initial light incident surface; 23. film; 24. imaging lens group;

[0032] 30. Second projection surface. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] The optical components and vehicles in the present application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] In the prior art, when there is an angle between the projection lamp and the second projection surface, there are differences in the brightness of the projection pattern at various positions on the second projection surface, and the uniformity of the projection pattern is poor.

[0037] In order to solve the above technical problems, the embodiment of the present application provides an optical module, including a light source and a lens module, wherein the light source has a first axis, and the light source is configured to take the length direction of the first axis as the main light emitting direction; the lens module is arranged in the main light emitting direction of the light source, and the lens module has a second axis, and the second axis is the main optical axis of the lens module; the lens module is configured to adjust the light beam emitted by the light source and emit the light beam toward a side away from the light source; a reference plane λ perpendicular to the main optical axis is used as the first projection surface, and the light incident surface of the lens module closest to the light source is the initial light incident surface, the intersection of the first axis and the initial light incident surface is located on one side of the orthographic projection C of the second axis on the reference plane λ, and the maximum light energy portion of the light beam emitted by the lens module is located on the other side of the orthographic projection C of the second axis on the reference plane λ on the orthographic projection D of the reference plane λ. This is explained in detail below.

[0038] For the convenience of explanation, in the following embodiments, the optical module is used in a projection lamp as an example.

[0039] See also Figure 1 In one embodiment, the optical module includes a light source 10 and a lens module 20, the light source 10 has a first axis 11, and the light source 10 is configured to use the length direction of the first axis 11 as the main light emitting direction; the lens module 20 is arranged in the main light emitting direction of the light source 10, and the lens module 20 has a second axis 21, and the second axis 21 is the main optical axis of the lens module 20; the lens module 20 is configured to adjust the light beam emitted by the light source 10 and emit the light beam toward a side away from the light source 10; taking the reference plane λ perpendicular to the main optical axis as the first projection plane, the light incident surface of the lens module 20 closest to the light source 10 is the initial light incident surface 221, and the orthographic projection B of the intersection of the first axis 11 and the initial light incident surface 221 on the reference plane λ is located on one side of the orthographic projection C of the second axis 21 on the reference plane λ, and the orthographic projection D of the maximum light energy position of the emitted light beam of the lens module 20 on the reference plane λ is located on the other side of the orthographic projection C of the second axis 21 on the reference plane λ.

[0040] Figure 2It is a schematic diagram of the orthographic projection on the reference plane λ, wherein the circle represents the outgoing light beam area of ​​the lens module 20, the orthographic projection of the intersection of the initial light incident surface 221 and the first axis 11 on the reference plane λ is B, the orthographic projection of the second axis 21 on the reference plane λ is C, and the orthographic projection of the maximum light energy portion of the outgoing light beam of the lens module 20 on the reference plane is D; that is, point B and point D are arranged on both sides of point C, that is, more light energy of the light source 10 enters the lens module 20 from one side of the second axis 21, and is emitted after being processed by the lens module 20, and the emitted light beam deviates to the other side of the second axis 21, that is, more light energy of the outgoing light beam is on the other side of the second axis 21.

[0041] Such a setting can shift the projection pattern of the emitted light beam on the inclined second projection surface 30 (such as the ground) toward the distance, enhance the brightness of the pattern at a distance and reduce the brightness of the pattern near, thereby ensuring that the brightness difference at each position of the projection pattern is small, effectively improving the uniformity of the projection pattern and improving the projection performance.

[0042] It should be noted that, in the light beam emitted by the light source 10, the light energy at the first axis 11 is the strongest. Through the arrangement of the light source 10, the position with the maximum light energy of the light beam emitted from the lens module 20 can be offset and not coincide with the second axis 21, thereby enhancing the brightness of the pattern at a distance and reducing the brightness of the pattern at a near distance, thereby improving the uniformity of the overall brightness of the projection pattern and improving the projection performance of the lens module 20 after installation on the vehicle, and the applicability is strong; and the uniformity of lighting (projection pattern) can be achieved by adjusting the arrangement position of the light source 10, without adjusting the lens module 20, which is not easily affected by the processing accuracy and is easier to adjust, reducing the difficulty of operation and production cost (the lens module 20 is a standard part); the position of the light source 10 is adjusted according to different loading positions, so that the position with the maximum light energy of the light beam emitted from the lens module 20 is offset, thereby achieving uniformity of lighting in different scenes, and the position of the light source 10 can be adjusted in a large range, which can adapt to the use of different installation positions and has strong applicability.

[0043] See also Figure 1 In one embodiment, the lens module 20 is used to project the light emitted by the light source 10 onto the second projection plane 30, and the angle between the second projection plane 30 and the second axis 21 is γ, satisfying: 0°<γ<90°; the intersection of the initial light incident surface 221 and the first axis 11 is located within the area swept by the angle γ, so that the part with the maximum light energy of the light beam projected onto the second projection plane 30 is located outside the range of the angle γ.

[0044] In this embodiment, the second projection surface 30 is the ground, and the projection lamp is installed at the door panel, chassis, bumper, etc.; at the same installation height (the height of the projection lamp from the ground), in order to ensure that the size of the projection pattern is large enough, it is necessary to make the light beam emitted from the lens module 20 (projection lamp) form an angle (i.e., angle γ) with the ground. The smaller the angle, the larger the size of the projection pattern. In the prior art, the first axis 11 and the second axis 21 coincide. In this case, the uniformity of the projection pattern formed on the ground is poor. The near side (the side close to the light source 10, the same below, such as Figure 1 The projection pattern brightness is higher at the left side of the second axis 21 in the viewing angle, and the projection pattern brightness is higher at a distance (the side far away from the light source 10, the same below). Figure 1 The brightness of the projection pattern on the right side of the second axis 21 in the viewing angle will be significantly reduced due to the increase in the optical path (the light needs a longer distance to be projected to the ground).

[0045] In this embodiment, the intersection of the initial light incident surface 221 and the first axis 11 is set within the area swept by the angle γ (such as Figure 1 As shown), that is, more light energy of the light source 10 is injected into the lens module 20 from below the second axis 21 (that is, within the area swept by the angle γ); accordingly, the portion with the maximum light energy of the light beam (projection pattern) projected on the ground is offset and located outside the range of the angle γ (to the right of the second axis 21), that is, more energy of the projection pattern is located to the right of the second axis 21; the light energy in the near distance is reduced, and the light energy in the far distance is enhanced, so that the energy of the light beam used to form the projection pattern in the far distance reaching the ground after a longer optical path is consistent with the light energy of the light beam in the near distance reaching the ground, thereby improving the uniformity of the projection pattern on the ground.

[0046] It should be noted that, in some embodiments, the second axis 21 can also be perpendicular to the second projection plane 30; for example, when the projection lamp is set on the chassis, the projection position of the projection pattern can be offset by adjusting the position of the light source 10, and the projection pattern can be offset out of the coverage range of the vehicle body to facilitate observation by the driver and passengers.

[0047] See also Figure 3 In one embodiment, the first axis 11 is parallel to the second axis 21; and the spacing between the first axis 11 and the second axis 21 is h mm, satisfying: 0.1≤h≤1, for example 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, etc.

[0048] When the value of h is less than 0.1, the first axis 11 and the second axis 21 are too close, and the energy offset of the light beam emitted from the lens module 20 is not significant. When the second axis 21 is not perpendicular to the second projection surface 30, the uniformity of the projection pattern on both sides of the second axis 21 cannot be guaranteed; when the value of h is greater than 1, the first axis 11 and the second axis 21 are too far apart, that is, the light source 10 and the second axis 21 are too far apart, which will not only waste the internal space of the projection lamp, but also part of the light emitted by the light source 10 will not be incident on the lens module 20, resulting in a lower quality of the display effect of the projection pattern. Therefore, when the first axis 11 and the second axis 21 are parallel, h can ensure the uniformity of the projection pattern within the value range of this embodiment.

[0049] See also Figure 5 In one embodiment, the first axis 11 is not parallel to the second axis 21, and the intersection of the first axis 11 and the second axis 21 is located between the light source 10 and the lens module 20; the distance between the intersection of the first axis 11 and the initial light incident surface 221 and the second axis 21 is L mm, satisfying: 2≤L≤3, for example 2, 2.5, 3, etc.

[0050] In this embodiment, the light source 10 is arranged above the second axis 21. The position of the light source 10 is arranged according to the installation positions of the other parts inside the projection lamp, which can improve the utilization rate of the internal space of the projection lamp. When the value of L is less than 2, the intersection of the first axis 11 and the initial light incident surface 221 is closer to the second axis 21, and the energy deviation of the light beam emitted from the lens module 20 is not significant, and the uniformity of the projection pattern on both sides of the second axis 21 cannot be guaranteed; when the value of L is greater than 3, part of the light emitted by the light source 10 will not be incident on the lens module 20, resulting in a lower quality of the display effect of the projection pattern.

[0051] In addition, it should be noted that the value of L in this embodiment is greater than the value of h when the first axis 11 is parallel to the second axis 21, that is, the energy offset distance of the light beam emitted from the lens module 20 is greater; when the height of the projection lamp is consistent ( Figure 4 In the viewing angle, when the distance between the light source 10 and the second projection surface 30 is constant), in order to ensure the uniformity of the projection pattern, the value of γ in this embodiment will be relatively small, and a larger light beam area will be formed on the second projection surface 30, that is, the area of ​​the projection pattern is larger, which is convenient for users to observe.

[0052] See also Figure 5 In one embodiment, the first axis 11 is not parallel to the second axis 21, and the intersection of the first axis 11 and the second axis 21 is located between the light source 10 and the lens module 20; the angle between the first axis 11 and the second axis 21 is α, satisfying: 15°≤α≤45°, for example, 15°, 25°, 35°, 45°, etc.

[0053] In this embodiment, the light source 10 is arranged above the second axis 21. The position of the light source 10 is arranged according to the installation positions of the other parts inside the projection lamp, which can improve the utilization rate of the internal space of the projection lamp. When the value of α is less than 15°, the first axis 11 tends to be parallel to the second axis 21, and the intersection of the initial light incident surface 221 and the first axis 11 will be closer to the second axis 21. The energy deviation of the light emitted from the lens module 20 is not significant, and the uniformity of the projection pattern on both sides of the second axis 21 cannot be guaranteed; when the value of α is greater than 45°, the intersection of the initial light incident surface 221 and the first axis 11 will be farther away from the second axis 21, and part of the light emitted by the light source 10 will not be incident on the lens module 20, resulting in a lower display quality of the projection pattern. In summary, when 15°≤α≤45°, the uniformity of the projection pattern can be guaranteed.

[0054] It should be noted that, in this embodiment, the position of the light source 10 relative to the second axis 21 remains unchanged, and the angle α is adjusted by adjusting the position of the intersection of the first axis 11 and the second axis 21. In some embodiments, the position of the intersection of the initial light incident surface 221 and the first axis 11 remains unchanged, and the angle α is adjusted by adjusting the position of the light source 10.

[0055] See also Figure 6 In one embodiment, the first axis 11 is not parallel to the second axis 21, and the intersection of the first axis 11 and the second axis 21 is located on the side of the initial light incident surface 221 away from the light source 10; the angle between the first axis 11 and the second axis 21 is β, satisfying: 15°≤β≤45°, for example, 15°, 25°, 35°, 45°, etc.

[0056] In this embodiment, the light source 10 is arranged below the second axis 21. The position of the light source 10 is arranged according to the installation positions of the other parts inside the projection lamp, which can improve the utilization rate of the internal space of the projection lamp. When the value of β is less than 15°, the first axis 11 tends to be parallel to the second axis 21, and the intersection of the initial light incident surface 221 and the first axis 11 will be closer to the second axis 21. The energy deviation of the light emitted from the lens module 20 is not significant, and the uniformity of the projection pattern on both sides of the second axis 21 cannot be guaranteed; when the value of β is greater than 45°, the intersection of the initial light incident surface 221 and the first axis 11 will be farther away from the second axis 21, and part of the light emitted by the light source 10 will not be incident on the lens module 20, resulting in a lower display quality of the projection pattern. In summary, when 15°≤β≤45°, the uniformity of the projection pattern can be guaranteed.

[0057] It should be noted that, in this embodiment, the intersection position of the first axis 11 and the second axis 21 remains unchanged, and the angle β is adjusted by changing the position of the light source 10. In some embodiments, the position of the light source 10 may remain unchanged, and the angle β may be adjusted by adjusting the intersection position of the first axis 11 and the second axis 21.

[0058] See also Figure 7 In one embodiment, the first axis 11 is not parallel to the second axis 21, and the intersection of the first axis 11 and the second axis 21 is located on the side of the light source 10 away from the lens module 20; the angle between the first axis 11 and the second axis 21 is δ, satisfying: 15°≤δ≤45°, for example, 15°, 25°, 35°, 45°, etc.

[0059] In this embodiment, the light source 10 is arranged below the second axis 21. The position of the light source 10 is arranged according to the installation positions of the other parts inside the projection lamp, which can improve the utilization rate of the internal space of the projection lamp. When the value of δ is less than 15°, the first axis 11 tends to be parallel to the second axis 21, and the intersection of the initial light incident surface 221 and the first axis 11 will be closer to the second axis 21. The energy deviation of the light emitted from the lens module 20 is not significant, and the uniformity of the projection pattern on both sides of the second axis 21 cannot be guaranteed; when the value of δ is greater than 45°, the intersection of the initial light incident surface 221 and the first axis 11 will be farther away from the second axis 21, and part of the light emitted by the light source 10 will not be incident on the lens module 20, resulting in a lower display quality of the projection pattern. In summary, when 15°≤δ≤45°, the uniformity of the projection pattern can be guaranteed.

[0060] It should be noted that, in this embodiment, the intersection position of the first axis 11 and the second axis 21 remains unchanged, and the angle δ is adjusted by changing the position of the light source 10. In some embodiments, the position of the light source 10 may remain unchanged, and the angle δ may be adjusted by adjusting the intersection position of the first axis 11 and the second axis 21.

[0061] See also Figure 1 In one embodiment, the lens module 20 includes a focusing lens group 22 , a film 23 , and an imaging lens group 24 in sequence, and the focusing lens group 22 is disposed between the light source 10 and the film 23 .

[0062] After being emitted from the light source 10 , the light is converged by the condensing lens group 22 , passes through the film 23 , and finally emitted through the imaging lens group 24 to form a projection pattern on the second projection surface 30 .

[0063] On the other hand, the present application also relates to a vehicle, comprising any one of the aforementioned optical modules.

[0064] By adopting the technical solution provided in the embodiment of the present application, the intersection of the initial light incident surface 221 and the first axis 11 is set on one side of the second axis 21, and more light energy of the light source 10 enters the lens module 20 from one side of the second axis 21, and is emitted after being processed by the lens module 20. The emitted light beam is biased to the other side of the second axis 21; such a setting can ensure that the brightness difference of each position of the projection pattern is small, effectively improve the uniformity of the projection pattern, and improve the projection performance.

[0065] In the various embodiments of the present application, if there is no special explanation and logical conflict, the terms or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships. In the present application, "at least one" means one or more, and "more" means two or more.

[0066] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

[0067] The optical module and vehicle provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An optical module, characterized in that: include: A light source having a first axis, wherein the light source is configured to take the length direction of the first axis as a main light emitting direction; as well as A lens module is arranged in the main light emitting direction of the light source, and the lens module includes a focusing lens group; The lens module has a second axis, which is the main optical axis of the lens module; the lens module is configured to adjust the light beam emitted by the light source and emit the light beam toward a side away from the light source; A reference plane λ perpendicular to the principal optical axis is used as the first projection plane, the light incident surface of the lens module closest to the light source is used as the initial light incident surface, the intersection of the first axis and the initial light incident surface is located on one side of the orthographic projection C of the second axis on the reference plane λ, and the portion with the maximum light energy of the light beam emitted from the lens module is located on the other side of the orthographic projection C of the second axis on the reference plane λ on the orthographic projection D of the reference plane λ.

2. The optical module according to claim 1, wherein: The lens module is used to project the light emitted by the light source onto a second projection plane, and the angle between the second projection plane and the second axis is γ, which satisfies: 0°<γ<90°; The intersection point of the initial light incident surface and the first axis is located within the area swept by the angle γ, so that the portion with the maximum light energy of the light beam projected onto the second projection surface is located outside the range of the angle γ.

3. The optical module according to claim 1, wherein: The first axis is parallel to the second axis.

4. The optical module according to claim 3, wherein: The distance between the first axis and the second axis is h mm, satisfying: 0.1≤h≤1.

5. The optical module according to claim 1, wherein: The first axis is not parallel to the second axis, and the intersection of the first axis and the second axis is located between the light source and the lens module.

6. The optical module according to claim 5, wherein: The distance between the intersection of the first axis and the initial light incident surface and the second axis is L mm, satisfying: 2≤L≤3.

7. The optical module according to claim 5, wherein: The angle between the first axis and the second axis is α, which satisfies: 15°≤α≤45°.

8. The optical module according to claim 1, wherein: The first axis is not parallel to the second axis, and an intersection point of the first axis and the second axis is located on a side of the initial light incident surface away from the light source.

9. The optical module according to claim 8, wherein: The angle between the first axis and the second axis is β, which satisfies: 15°≤β≤45°.

10. The optical module according to claim 1, wherein: The first axis is not parallel to the second axis, and an intersection of the first axis and the second axis is located on a side of the light source away from the lens module.

11. The optical module according to claim 1, wherein: The angle between the first axis and the second axis is δ, which satisfies: 15°≤δ≤45°.

12. The optical module according to claim 1, wherein: The lens module also includes a film sheet, and the film sheet is arranged on a side of the focusing lens group away from the light source.

13. A vehicle, characterized in that: Comprising the optical module as claimed in any one of claims 1 to 12.

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