Lens, head-up display and vehicle

Abstract

The application relates to the technical field of optical instruments, and discloses a lens, a head-up display and a vehicle, the lens has a rotation axis, the lens can rotate around the rotation axis, and comprises a lens main body, a first cantilever beam and a second cantilever beam; the second cantilever beam and the first cantilever beam are arranged on opposite sides of the lens main body; a plane where one of the second cantilever beam and the first cantilever beam is located is coplanar with the rotation axis, and an included angle is formed between a plane where the other one is located and the rotation axis; one end of the first cantilever beam away from the lens main body is provided with a first rotating part, one end of the second cantilever beam away from the main body part is provided with a second rotating part, and the second rotating part is arranged in a common rotating axis with the first rotating part. Through the above mode, the application can improve the technical problem that the head-up display is not easy to assemble and fix on the front wall connecting support in the related art.

Description

Technical Field

[0001] This application relates to the field of optical instrument technology, and in particular to a lens, a head-up display, and a vehicle. Background Technology

[0002] HUD (Head-Up Display) is a novel method of in-vehicle display that utilizes a transparent surface. The HUD emits image light from an optical engine, which is projected onto the windshield through lenses and reflected to form a virtual image, enhancing the display effect compared to the real world outside the windshield. In related technologies, the lenses are rotatably mounted inside the HUD via a rotating part, allowing them to rotate around a rotation axis. However, the rotating part is often parallel to the rotation axis, causing the housing of the lenses to become larger and resulting in assembly interference with the original front bulkhead mounting bracket, which is detrimental to the assembly and fixation of the HUD and the front bulkhead mounting bracket. Utility Model Content

[0003] The purpose of this application is to provide a lens, a head-up display, and a vehicle, which aims to improve the technical problem that head-up displays are not easy to assemble and fix to the front connecting bracket in the related art.

[0004] According to a first aspect of this application, a lens is provided having a rotation axis, the lens being rotatable about the rotation axis, comprising:

[0005] Lens body;

[0006] First cantilever beam;

[0007] The second cantilever beam and the first cantilever beam are respectively disposed on opposite sides of the lens body; the plane containing one of the second cantilever beam and the first cantilever beam is coplanar with the axis of rotation, and the plane containing the other cantilever beam forms an angle with the axis of rotation;

[0008] The first cantilever beam has a first rotating part at the end away from the lens body, and the second cantilever beam has a second rotating part at the end away from the main body. The second rotating part and the first rotating part are arranged along the same axis of rotation.

[0009] Optionally, the plane containing the first cantilever beam is coplanar with the axis of rotation, and the plane containing the second cantilever beam forms an acute angle with the axis of rotation.

[0010] Optionally, the lens body includes a main body, a first side, and a second side; along the rotation axis, the first side and the second side are respectively connected to opposite sides of the main body, and both the first side and the second side extend in a direction away from the main body;

[0011] The first cantilever beam is connected to the first side, and the second cantilever beam is connected to the second side.

[0012] Optionally, a first reinforcing rib is provided between the first side portion and the main body portion; and / or, a second reinforcing rib is provided between the second side portion and the main body portion.

[0013] Optionally, the surface of the main body that is away from the first side and the second side is divided into a reflective surface and a non-reflective surface, and the non-reflective surface and the reflective surface are arranged sequentially along the rotation axis.

[0014] The first side is connected to the side of the main body near the reflective surface, and the second side is connected to the side of the main body near the non-reflective surface; the bottom of the second side is provided with a toothed portion, which is used to engage with the drive component of the head-up display to drive the lens to rotate around the rotation axis.

[0015] Optionally, the bottom of the second side portion is further provided with a stop portion, which is located at one end of the toothed portion near the non-reflective surface along a direction perpendicular to the rotation axis.

[0016] Optionally, both the first cantilever beam and the second cantilever beam are integrally formed with the lens body.

[0017] Optionally, a third reinforcing rib is provided between the first cantilever beam and the lens body; and / or, a fourth reinforcing rib is provided between the second cantilever beam and the lens body.

[0018] According to a second aspect of this application, a head-up display is provided, the head-up display including the lens as described above.

[0019] According to a third aspect of this application, a head-up display is provided, including the lens as described above or the head-up display as described above.

[0020] The beneficial effects of this utility model embodiment are: Since the first rotating part and the second rotating part are arranged on the same rotation axis, the rotating part coincides with the rotation axis. Therefore, the housing for accommodating the lens does not need to be changed, and it matches the original specification of the front connecting bracket, reducing the situation of assembly interference between the two parts, which is conducive to the assembly and fixing of the head-up display and the front connecting bracket.

[0021] Based on the aforementioned arrangement of the first and second rotating parts sharing the same axis of rotation, the plane containing one of the second and first cantilever beams is coplanar with the axis of rotation, while the plane containing the other forms an angle with the axis of rotation. This not only helps the lens achieve the desired rotational effect but also reduces the space occupied by the first and second cantilever beams, simplifying the lens structure. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram illustrating a head-up display according to one embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of a lens according to one embodiment of this application;

[0025] Figure 3 for Figure 2 A schematic diagram of the lens structure from another perspective is shown;

[0026] Figure 4 for Figure 2 The front view of the lens is shown;

[0027] Figure 5 for Figure 2 The top view of the lens is shown;

[0028] Figure 6 for Figure 2 A partial view of the right side of the lens is shown;

[0029] Figure 7 for Figure 2 A partial view of the left side of the lens is shown;

[0030] Figure label:

[0031] 1. Optical mechanism; 2. Primary reflector; 3. Secondary reflector;

[0032] 21. Lens body; 211. Body portion; 2111. First arched surface; 2112. Second arched surface; 21121. Reflective surface; 21122. Non-reflective surface; 212. First side portion; 213. Second side portion; 2131. Toothed portion; 2132. Stop portion;

[0033] 22. First cantilever beam; 221. First rotating part;

[0034] 23. Second cantilever beam; 231. Second rotating part;

[0035] 24. First reinforcing rib; 25. Second reinforcing rib; 26. Third reinforcing rib; 27. Fourth reinforcing rib. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0038] In the description of this application, it should be noted that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0039] In the description of this application, it should be noted that the use of terms such as "first" and "second" to define the components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0040] The technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0041] First, please see Figure 1 This application provides a head-up display (HUD) comprising: an optical engine 1 and a reflective module. The reflective module is disposed on the light-emitting side of the optical engine 1. The optical engine 1 emits image light, and the reflective module deflects the image light emitted by the optical engine 1 onto the windshield of a vehicle to form a virtual image. The virtual image can be navigation information, vehicle speed, etc. When the human eye observes the virtual image through the windshield, it can perceive a certain sense of depth, just like viewing a real object at a specific distance outside the windshield.

[0042] The reflection module includes at least one reflector. In this embodiment, the reflection module includes a main reflector 2 and a sub-reflector 3.

[0043] Opto-mechanical system 1 includes LCD (Liquid Crystal Display), DMD (Digital Micromirror Devices), MEMS (Micro Electro-Mechanical System) micromirrors, LCoS (Liquid Crystal on silion), etc.

[0044] The primary reflector 2 and the secondary reflector 3 can project the image light projected by the optical engine 1 onto the transparent surface, enabling customized optical paths within a small space to meet different projection display needs. As an example, the primary reflector 2 and the secondary reflector 3 can be configured as other specifications of plane mirrors, concave mirrors, convex mirrors, concave lenses, convex lenses, etc., according to the requirements of optical planning, and the surface shape of the lenses can also be a free-form surface.

[0045] Next, please see Figures 2 to 7 One embodiment of this application provides a lens. This lens can be the primary reflective lens 2 as described above, which has its own rotation axis L. After being installed inside the head-up display, it can rotate around the rotation axis L by a certain angle, thereby changing the projection position of the image light on the windshield to meet the needs of users of different heights.

[0046] Please continue reading Figure 2 and Figure 3 This lens includes a lens body 21, a first cantilever beam 22, and a second cantilever beam 23. The first cantilever beam 22 and the second cantilever beam 23 are respectively located on opposite sides of the lens body 21. A first rotating part 221 is formed at the end of the first cantilever beam 22 away from the lens body 21, and a second rotating part 231 is formed at the end of the second cantilever beam 23 away from the main body 211. The second rotating part 231 and the first rotating part 221 are arranged along the same axis of rotation L. Because the first rotating part 221 and the second rotating part 231 are arranged along the same axis of rotation L, the rotating part coincides with the axis of rotation L. Therefore, the housing for accommodating the lens does not need to be changed, and it matches the original front connecting bracket, reducing the possibility of assembly interference between the two parts and facilitating the assembly and fixation of the head-up display and the front connecting bracket. It should be noted that the aforementioned axis of rotation L refers to the virtual line segment connecting the rotational positions of the opposite ends of the lens, which is equivalent to the virtual line segment connecting the first rotating part 221 and the second rotating part 231. As an example, the first rotating part 221 and / or the second rotating part 231 are ball heads.

[0047] For the lens body 21, such as Figures 2 to 5As shown, in some embodiments, the lens body 21 includes a main body 211, a first side portion 212, and a second side portion 213. The main body 211 is generally arched, so that the main body 211 has a first arched surface 2111 and a second arched surface 2112, wherein the first arched surface 2111 is the model surface of the lens, and the second arched surface 2112 is the light-reflecting surface 21121 of the lens to reflect the image light projected by the optical engine 1. The first arched surface 2111 and the second arched surface 2112 are arranged opposite to each other along the direction perpendicular to the rotation axis L. Along the rotation axis L, the first side portion 212 and the second side portion 213 are integrally formed to opposite ends of the first arched surface 2111, and both the first side portion 212 and the second side portion 213 extend in a direction away from the first arched surface 2111.

[0048] like Figure 2 and Figure 5 As shown, the surface of the main body 211 facing away from the first side portion 212 and the second side portion 213 is divided into a reflective surface 21121 and a non-reflective surface 21122, arranged sequentially along the rotation axis L. As an example, the second arched surface 2112 (the surface of the main body 211 facing away from the first side portion 212 and the second side portion 213) is divided into a non-reflective surface 21122 near the left edge and a reflective surface 21121 covering both the middle and right edges. The first side portion 212 is connected to the side of the main body 211 near the reflective surface 21121, and the second side portion 213 is connected to the side of the main body 211 near the non-reflective surface 21122. A toothed portion 2131 is provided at the bottom of the second side portion 213 for engaging with the drive assembly of the head-up display to drive the lens to rotate around the rotation axis L. As an example, the drive assembly (not shown) includes a drive motor and a screw. The screw is fixed to the shaft of the drive motor and meshes with the toothed portion 2131. The drive motor can drive the screw to rotate, thereby driving the lens to rotate about the rotation axis L.

[0049] The advantage of adopting the above technical solution is that the non-reflective surface 21122 on the main body 211 can extend beyond the reflective area of ​​the head-up display without affecting the normal function of the image light projected by the lens reflecting the optical engine 1, so as to facilitate the assembly and fixation of the toothed part 2131 and the drive assembly.

[0050] like Figure 3 As shown, in order to limit the rotation angle range of the lens, a stop portion 2132 is further provided at the bottom of the second side portion 213. Along the direction perpendicular to the rotation axis L, the stop portion 2132 is located at one end of the toothed portion 2131 near the non-reflective surface 21122.

[0051] To further enhance the overall structural strength of the lens body 21, a first reinforcing rib 24 is provided between the first side portion 212 and the main body portion 211. As an example, such as...Figure 3 As shown, the three first reinforcing ribs 24 have approximately triangular cross-sections and are integrally formed between the first side portion 212 and the first arch surface 2111 at equal intervals. Similarly, a second reinforcing rib 25 is provided between the second side portion 213 and the main body portion 211. As an example, as... Figure 3 and Figure 7 As shown, the cross-sections of the three second reinforcing ribs 25 are also roughly triangular, and they are integrally formed between the second side portion 213 and the second arch surface 2112 at unequal intervals. Of course, the number and structure of the second reinforcing ribs 25 and the aforementioned first reinforcing ribs 24 are not limited to this. For example, the number of second reinforcing ribs 25 and first reinforcing ribs 24 may be one, two, or more than five, and the cross-sectional shapes of the second reinforcing ribs 25 and first reinforcing ribs 24 may be trapezoidal, conical, T-shaped, or other regular shapes.

[0052] It is understood that the embodiments of this application do not specifically limit the structure of the lens body 21, as long as it can serve as a connection structure between the first cantilever beam 22 and the second cantilever beam 23, and meet the requirements of the image light projected by the optical engine 1. For example, in some other embodiments, the lens body 21 includes a main body portion 211 and a first side portion 212, but does not include a second side portion 213, and the second cantilever arm is directly integrally formed to the first arch surface 2111.

[0053] For the first cantilever beam 22 and the second cantilever beam 23, please refer to... Figure 6 and Figure 7 See also Figure 4 In some embodiments, both the first cantilever beam 22 and the second cantilever beam 23 are pivot-shaped. The first cantilever beam 22 is integrally formed onto the surface of the first side portion 212 facing away from the first arch surface 2111, and the second cantilever beam 23 is integrally formed onto the surface of the second side portion 213 facing away from the first arch surface 2111. That is, the first cantilever beam 22, the second cantilever beam 23, and the lens body 21 are a single integrally formed structure, which is beneficial to improving the structural stability of the lens.

[0054] Please combine Figure 4 See also Figure 5 In this application, the plane containing one of the second cantilever beam 23 and the first cantilever beam 22 is coplanar with the rotation axis L, while the plane containing the other cantilever beam forms an angle with the rotation axis L. The lens in this application, based on the aforementioned arrangement of the first rotating part 221 and the second rotating part 231 sharing the same rotation axis L, further simplifies the lens structure by having one of the second cantilever beam 23 and the first cantilever beam 22 coplanar with the rotation axis L and the plane containing the other cantilever beam 22 forming an angle with the rotation axis L. This not only helps the lens achieve the desired rotation effect but also reduces the space occupied by the first cantilever beam 22 and the second cantilever beam 23.

[0055] It should be noted that the reduction in space occupied by the first cantilever beam 22 and the second cantilever beam 23 using the aforementioned structure is relative to the arrangement of the rotating part parallel to the axis of rotation L. Figure 4 The first cantilever beam 22 is shown in a plane that is coplanar with the axis of rotation L, and the plane of the second cantilever beam 23 is shown at an acute angle to the axis of rotation L.

[0056] Since the distance between the first cantilever beam 22 and the reflective surface 21121 on the main body 211 is short, even if the plane where the first cantilever beam 22 is located forms an angle with the axis of rotation L, it will not reduce the space occupied by much, so it will not be described in detail here.

[0057] If the second cantilever beam 23 is arranged parallel to the rotation axis L, the second side portion 213 extends more in the direction perpendicular to the rotation axis L. After the plane where the second cantilever beam 23 is located forms an angle with the rotation axis L, the inclined extension of the second cantilever beam 23 can ensure that the first rotating part 221 and the second rotating part 231 share the same rotation axis L. Therefore, the second side portion 213 does not need to extend more in the direction perpendicular to the rotation axis L, thus reducing the space occupied by the first cantilever beam 22 and the second cantilever beam 23.

[0058] Of course, the plane in which the second cantilever beam 23 is located is not limited to the plane in which it is located. Figure 4 It is shown that it forms an acute angle with the axis of rotation L, and it can also form an obtuse angle with the axis of rotation L. For example, the root of the second cantilever beam 23 is located at the upper end of the second side 213 and simultaneously tilts inward and downward.

[0059] To enhance the overall structural strength of the first cantilever beam 22 and the second cantilever beam 23, a third reinforcing rib 26 is further provided between the first cantilever beam 22 and the lens body 21. As an example, such as... Figure 4 and Figure 6 As shown, the two third reinforcing ribs 26 have approximately triangular cross-sections and are integrally formed between the first cantilever beam 22 and the first side portion 212 as supports. Similarly, a fourth reinforcing rib 27 is provided between the second cantilever beam 23 and the lens body 21. As an example, as... Figure 7 As shown, the cross-sections of the three fourth reinforcing ribs 27 are also roughly triangular, and they are integrally formed between the second cantilever beam 23 and the second side 213 in the manner of supporting legs.

[0060] Based on the same technical concept, one embodiment of this application also provides a means of transportation, which includes a head-up display or a lens as described in any of the above embodiments. The specific structure of the head-up display or lens can be found in the foregoing related content and will not be repeated here. It should be noted that the means of transportation is not limited to cars as a means of transportation, but may also include buses, trucks, excavators, motorcycles, trains, high-speed trains, ships, yachts, airplanes, spacecraft, etc. The windshield for projection is not limited to the windshield of a car, but may also be a transparent surface in other locations.

[0061] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A lens having a rotation axis, the lens being rotatable about the rotation axis, characterized in that, include: Lens body; First cantilever beam; The second cantilever beam and the first cantilever beam are respectively disposed on opposite sides of the lens body; the plane containing one of the second cantilever beam and the first cantilever beam is coplanar with the axis of rotation, and the plane containing the other cantilever beam forms an angle with the axis of rotation; The first cantilever beam has a first rotating part at the end away from the lens body, and the second cantilever beam has a second rotating part at the end away from the lens body. The second rotating part and the first rotating part are arranged along the same axis of rotation.

2. The lens according to claim 1, characterized in that, The plane containing the first cantilever beam is coplanar with the axis of rotation, and the plane containing the second cantilever beam forms an acute angle with the axis of rotation.

3. The lens according to claim 2, characterized in that, The lens body includes a main body, a first side, and a second side; along the rotation axis, the first side and the second side are respectively connected to opposite sides of the main body, and both the first side and the second side extend in a direction away from the main body; The first cantilever beam is connected to the first side, and the second cantilever beam is connected to the second side.

4. The lens according to claim 3, characterized in that, A first reinforcing rib is provided between the first side portion and the main body portion; and / or, a second reinforcing rib is provided between the second side portion and the main body portion.

5. The lens according to claim 3, characterized in that, The surface of the main body that is away from the first side and the second side is divided into a reflective surface and a non-reflective surface, and the non-reflective surface and the reflective surface are arranged sequentially along the rotation axis. The first side is connected to the side of the main body near the reflective surface, and the second side is connected to the side of the main body near the non-reflective surface; the bottom of the second side is provided with a toothed portion, which is used to engage with the drive component of the head-up display to drive the lens to rotate around the rotation axis.

6. The lens according to claim 5, characterized in that, The bottom of the second side is also provided with a stop portion, which is located at the end of the toothed portion near the non-reflective surface along a direction perpendicular to the rotation axis.

7. The lens according to any one of claims 1-6, characterized in that, Both the first cantilever beam and the second cantilever beam are integrally formed with the lens body.

8. The lens according to claim 7, characterized in that, A third reinforcing rib is provided between the first cantilever beam and the lens body; and / or, a fourth reinforcing rib is provided between the second cantilever beam and the lens body.

9. A head-up display, characterized in that, The head-up display includes a lens as described in any one of claims 1-8.

10. A means of transportation, characterized in that, Includes the lens as described in any one of claims 1-8 or the head-up display as described in claim 9.

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