A projection system, vehicle lamp and vehicle

Abstract

The application discloses a projection system, a vehicle lamp and a vehicle. The projection system comprises a projection module and an optical assembly. The optical assembly comprises at least one reflecting surface, at least one of the reflecting surfaces is a curved reflecting surface. The light beam emitted by the projection module is reflected by the curved reflecting surface, and then projected to a first projection position on the ground to form a projection image. The curved reflecting surface is used to adjust the image distance of the projection module, so as to control the clear imaging of the light beam emitted by the projection module at the first projection position. The projection system of the application adds a curved reflecting surface, and the image distance of the projection module can be adjusted, so that the imaging clarity of the projection display position is controlled.

Description

Technical Field

[0001] This application belongs to the field of vehicle lighting and display technology, and particularly relates to a projection system, vehicle lights, and vehicles. Background Technology

[0002] As the automotive industry evolves towards electrification, intelligence, and connectivity, the role of the car is transforming from a simple means of transportation into a "mobile intelligent space" integrating travel, work, and entertainment. The integration of projection display technology into automotive headlights is shifting from functionality to intelligence.

[0003] Therefore, in the implementation of projection in automotive headlights, how to meet diverse projection requirements is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides a projection system, a vehicle light, and a vehicle. The projection system of this application can meet diverse projection needs.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: The first aspect of this application provides a projection system that can adjust the image distance of the projection module while changing the optical path of the beam emitted from the projection module, thereby controlling the image clarity of the projection display position.

[0006] The projection system includes a projection module and an optical component. The optical component includes at least one reflective surface, at least one of which is a curved reflective surface. The light beam emitted from the projection module is reflected by the curved reflective surface and projected onto a first projection position on the ground to form a projected image. The curved reflective surface is used to adjust the image distance of the projection module to control the light beam emitted from the projection module to form a clear image at the first projection position.

[0007] In one preferred embodiment of the first aspect application, the projected image has a first projection area, which is larger than a preset projection area. The preset projection area is the projection area of ​​the projected image formed when the optical component provides a planar reflective surface, and the light beam emitted from the projection module is reflected by the planar reflective surface and projected onto the ground; and / or The distance between the first projection position and the position where the projection module is projected onto the ground is less than the distance between the preset projection position and the position where the projection module is projected onto the ground. When the preset projection position is a planar reflective surface provided by the optical component, the light beam emitted by the projection module is reflected by the planar reflective surface and then projected onto the ground to form the projection position of the projected image.

[0008] In one preferred embodiment of the first aspect application, at least one of the reflecting surfaces is a convex curved reflecting surface, which protrudes toward the reflecting direction of the reflecting surface.

[0009] In one preferred embodiment of the first aspect application, in the optical path from the projection module to the first projection position, the convex curved reflective surface is close to the first projection position.

[0010] In one preferred embodiment of the first aspect application, the optical component includes a plurality of reflective surfaces, at least one of which is: Planar reflective surface; or A concave reflective surface, wherein the concave reflective surface is recessed in the direction opposite to the reflection direction of the reflective surface.

[0011] In one preferred embodiment of the first aspect application, in the optical path from the projection module to the first projection position, the concave reflective surface is close to the projection module.

[0012] In one preferred embodiment of the first aspect application, at least one of the reflective surfaces has a semi-transparent and semi-reflective function to simultaneously form projected images at multiple projection positions.

[0013] In one preferred embodiment of the first aspect application, the optical component includes at least a first reflective surface and a second reflective surface, and the light beam emitted from the projection module is reflected sequentially by the first reflective surface and the second reflective surface and then projected onto a first projection position on the ground to form a projected image; The first reflective surface has a semi-transparent and semi-reflective function, so as to simultaneously form a projected image at both the first projection position and the second projection position. The distance between the first projection position and the position where the projection module is projected onto the ground is less than the distance between the second projection position and the position where the projection module is projected onto the ground.

[0014] In one preferred embodiment of the first aspect application, the optical component includes at least a first reflective surface and a second reflective surface, and the light beam emitted from the projection module is reflected sequentially by the first reflective surface and the second reflective surface and then projected onto a first projection position on the ground to form a projected image; The second reflective surface has a semi-transparent and semi-reflective function, so as to form a projected image at both the first projection position and the third projection position at the same time. The second reflective surface is located between the first projection position and the third projection position.

[0015] In one preferred embodiment of the first aspect application, the reflective surface having a semi-transparent and semi-reflective function includes a transmission region and a reflection region, wherein the transmission region and the reflection region are independent of each other, partially overlap, or overlap. The transmission region and the reflection region are independent of each other or partially overlap so that the projected images formed at multiple projection positions at the same time are different.

[0016] A second aspect of this application provides a projection system capable of simultaneously forming projected images at multiple projection positions.

[0017] The projection system includes a projection module and an optical component. The optical component includes at least one reflective surface, at least one of which has a semi-transparent and semi-reflective function. The light beam emitted from the projection module passes through the semi-transparent and semi-reflective reflective surface to form a projected image at multiple projection positions simultaneously.

[0018] In one preferred embodiment of the second aspect application, the optical component includes at least a first reflective surface and a second reflective surface, and the light beam emitted from the projection module is reflected sequentially by the first reflective surface and the second reflective surface and then projected onto a first projection position on the ground to form a projected image; The first reflective surface has a semi-transparent and semi-reflective function, so as to form a projected image at both the first projection position and the second projection position simultaneously; The distance between the first projection position and the position where the projection module is projected onto the ground is less than the distance between the second projection position and the position where the projection module is projected onto the ground.

[0019] In one preferred embodiment of the second aspect application, the optical component includes at least a first reflective surface and a second reflective surface, and the light beam emitted from the projection module is reflected sequentially by the first reflective surface and the second reflective surface and then projected onto a first projection position on the ground to form a projected image; The second reflective surface has a semi-transparent and semi-reflective function, so as to form a projected image at both the first projection position and the third projection position at the same time. The second reflective surface is located between the first projection position and the third projection position.

[0020] In one preferred embodiment of the second aspect of the application, at least one of the reflecting surfaces is a planar reflecting surface and / or a curved reflecting surface.

[0021] In one preferred embodiment of the second aspect application, the reflective surface with semi-transparent and semi-reflective function includes a transmission region and a reflection region, wherein the transmission region and the reflection region are independent of each other, partially overlap, or overlap. The transmission region and the reflection region are independent of each other or partially overlap so that the projected images formed at multiple projection positions at the same time are different.

[0022] In all the above embodiments, the optical component includes: An optical element, at least one of the reflecting surfaces being provided by the same optical element; or Multiple optical elements, at least one of the reflecting surfaces is provided by different optical elements.

[0023] In all the above embodiments, at least one of the reflective surfaces can be driven to switch at different positions to form the projected image at different projection positions.

[0024] Preferably, at least one of the reflective surfaces is driven by one or more of translation, rotation, and sliding.

[0025] A third aspect of this application provides a vehicle light, including the projection module described above.

[0026] A fourth aspect of this application provides a vehicle including the headlights described above.

[0027] Because this application adopts the above technical solution, it has the following advantages and positive effects compared with the prior art: The projection system provided in the first aspect of this application includes an optical component. This optical component includes at least one reflective surface. The reflective surface alters the direction of the light beam emitted from the projection module, thereby projecting a projected image onto a first projection position on the ground, thus adjusting the display position of the projected image. At least one of the reflective surfaces is a curved reflective surface. This curved reflective surface can adjust the image distance of the projection module, thereby adjusting the optimal imaging conjugate surface of the projection module, enabling the projection of a clear image at the first projection position. Therefore, the projection system of this application can simultaneously change the projection position through reflection and project a clearer image.

[0028] The projection system provided in the second aspect of this application, by setting an optical component in the projection system, including at least one reflective surface, changes the direction of the beam emitted from the projection module, thereby projecting the projected image onto a first projection position on the ground, thus realizing the adjustment of the display position of the projected image; at the same time, at least one of the reflective surfaces has a semi-transparent and semi-reflective function, and the beam emitted from the projection module can be projected into images at other positions after passing through the reflective surface with the semi-transparent and semi-reflective function, thereby enabling multiple projection images to be formed at multiple projection positions simultaneously.

[0029] The vehicle lights and vehicles provided in this application have the same technical effects as the aforementioned projection system. Attached Figure Description

[0030] Figure 1 This is a schematic diagram illustrating an application example of a projection module using existing technology. Figure 2 A schematic diagram of the optical path for the preset projection frame; Figure 3This is one of the optical path diagrams of the projection system in this application embodiment; Figure 4 This is the second optical path diagram of the projection system according to an embodiment of this application; Figure 5 This is the third optical path diagram of the projection system according to an embodiment of this application; Figure 6 This is the fourth optical path diagram of the projection system according to an embodiment of this application; Figure 7 This is the fifth optical path diagram of the projection system according to an embodiment of this application; Figure 8 This is the sixth optical path diagram of the projection system according to an embodiment of this application; Figure 9 This is the seventh optical path diagram of the projection system according to an embodiment of this application; Figure 10 This is the eighth optical path diagram of the projection system according to an embodiment of this application; Figure 11 This is the ninth optical path diagram of the projection system according to an embodiment of this application; Figure 12 This is the tenth optical path diagram of the projection system according to an embodiment of this application; Figure 13 This is the eleventh optical path diagram of the projection system according to an embodiment of this application; Figure 14 This is the twelfth optical path diagram of the projection system according to an embodiment of this application; Figure 15 This is the thirteenth optical path diagram of the projection system according to an embodiment of this application; Figure 16 This is the fourteenth optical path diagram of the projection system according to an embodiment of this application; Figure 17 This is the fifteenth optical path diagram of the projection system according to an embodiment of this application; Figure 18 This is the sixteenth optical path diagram of the projection system according to an embodiment of this application; Figure 19 This is the seventeenth optical path diagram of the projection system according to an embodiment of this application; Figure 20 This is the eighteenth optical path diagram of the projection system according to an embodiment of this application; Figure 21 This is the nineteenth optical path diagram of the projection system according to an embodiment of this application; Figure 22 This is the twentieth optical path diagram of the projection system according to an embodiment of this application; Figure 23 This is one of the schematic diagrams of the curved reflective surface according to an embodiment of this application; Figure 24 This is a second schematic diagram of the curved reflective surface according to an embodiment of this application; Figure 25This is the third schematic diagram of the curved reflective surface according to an embodiment of this application; Reference numerals: 1' / 1 - Projection module; 6 - Preset projection position; 2 - First projection position; 3 - Second projection position; 4 - Third projection position; 7 - Fourth projection position; 9' / 9 - Projected image; 10 - Preset projection image; 100 - Curved reflective surface; 101 - Planar reflective surface; 11 - First reflective surface; 12 - Second reflective surface; 13 - Ground; 100A - Transmission area; 100B - Reflection area. Detailed Implementation

[0031] The technical solutions in 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.

[0032] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] like Figure 1 As shown, the projection module 1' of a conventional projection system projects a beam of light, displaying a projected image 9' directly in front of the projection module.

[0035] To change the position of the projected image, the projection module can be moved or rotated. However, this alters the relative position between the projection module and the projection location, causing the distance between them to no longer meet the image distance requirement, resulting in an unclear projected image. Alternatively, the optical path of the beam emitted from the projection module can be changed using a mirror to alter the projection position. In this method, the change in projection position again leads to the same problem: the distance between the projection location and the projection module will not meet the image distance requirement, resulting in an unclear projected image.

[0036] Please refer to Figures 3-12 The first aspect of this application provides a projection system that can solve the above-mentioned technical problems, and the projection system will be described in detail below.

[0037] The projection system includes a projection module 1 and an optical component. The optical component includes at least one reflective surface, at least one of which is a curved reflective surface 100. The light beam emitted from the projection module 1 is reflected by the curved reflective surface 100 and projected onto the ground 13 at a first projection position 2 to form a projected image 9. The curved reflective surface is used to adjust the image distance of the projection module 1 to control the light beam emitted from the projection module 1 to form a clear image at the first projection position 2.

[0038] This embodiment incorporates optical components in the projection system, including at least one reflective surface. The reflective surface alters the direction of the light beam emitted from the projection module 1, thereby projecting the projected image 9 onto the ground 13 at a first projection position 2, thus adjusting the display position of the projected image 9. At least one of the reflective surfaces is a curved reflective surface 100, which can adjust the image distance of the projection module 1, thereby adjusting the optimal imaging conjugate surface of the projection module 1, ensuring a clear projected image 9 is projected at the first projection position 2. Therefore, the projection system provided in this application can achieve both changing the projection position through reflection and displaying a clear projected image 9 at the first projection position 2.

[0039] In some embodiments, the projection system provided in this application projects a first projection image 9 onto a first projection position on the ground 13, which has a first projection frame (in this application, the projection frame or frame refers to the size of the projection of the image at the projection position). The first projection frame is larger than a preset projection frame to meet the requirement of a large projection image. For example, Figure 2 As shown, this is a schematic diagram of a preset projection image 10. When the optical component provides a planar reflective surface, the preset projection image size is the projection size of the preset projection image 10 formed by the light beam emitted from the projection module 1 after reflection by the planar reflective surface and projected onto the ground 13. In subsequent embodiments with multiple reflective surfaces, the preset projection image size can also be the projection image size of the projection image formed by the light beam emitted from the projection module 1 after reflection by the planar reflective surface and projected onto the ground 13 when one or more curved reflective surfaces are replaced with planar reflective surfaces. This embodiment can increase the projection image size by adjusting the projection position and the image distance of the projection module 1 through the curved reflective surface 100, thereby enabling the projection system to project a clear and large projection image at the desired position.

[0040] Specifically, a larger projection area can be achieved by adjusting the curved surface shape of the curved reflective surface 100. For example... Figure 5 and Figure 6As shown, the curved reflective surface 100 is a convex reflective surface, protruding in the reflection direction. After the light beam emitted from the projection module 1 is reflected by the convex reflective surface, the size of the first projection image formed at the first projection position 2 on the ground 13 is larger than the preset projection image. In some embodiments, the convex reflective surface may only be formed on the cross-section in the direction in which the image size needs to be increased. If the size of the first projection image is larger than the preset projection image in all directions, then the convex reflective surface can be a convex surface on each cross-section along the direction of the light beam emitted from the projection module 1. This application is not limited to this. If the reflective surface is a convex surface only on one cross-section along the direction of the light beam emitted from the projection module 1, it can also be considered a convex reflective surface. At the same time, the shape and curvature of the convex reflective surface can also be used to adjust the image distance of the projection module 1, that is, to adjust the optimal imaging conjugate surface of the projection module 1 to be located at the first projection position 2, so as to project a clearer projection image 9 from the first projection position 2.

[0041] The above is merely an illustrative description of one implementation method for increasing the projection area of ​​this application. This application is not intended to limit the scope of this application, and other methods for increasing the projection area are also within the protection scope of this application.

[0042] In some variations, the projection system provided in this application obtains a projected image 9 at a first projection position 2 on the ground 13. The distance between the first projection position 2 and the position where the projection module 1 is projected onto the ground 13 is less than the distance between a preset projection position 6 and the position where the projection module 1 is projected onto the ground 13. That is, the projected image 9 obtained in this application is closer to the projection module 1, thus meeting the requirement that the projection position be closer to the projection module 1. For example, Figure 2 As shown, this diagram illustrates a preset projection position 6. When the preset projection position 6 provides a planar reflective surface for the optical component, the beam emitted from the projection module 1 is reflected by the planar reflective surface and projected onto the ground 13, forming the projection image at that position. The position where the projection module 1 is projected orthogonally onto the ground 13 refers to the position where the projection module 1 is vertically projected onto the ground 13. In subsequent embodiments with multiple reflective surfaces, the preset projection position can also be an optical system based on the same multiple reflective surfaces. When one or more curved reflective surfaces are replaced with planar reflective surfaces, the beam emitted from the projection module 1 is reflected by the planar reflective surface and projected onto the ground 13, forming the projection image at that position. The position where the projection module 1 is projected orthogonally onto the ground 13 refers to the position where the projection module 1 is vertically projected onto the ground 13.

[0043] Specifically, the projection position can be adjusted to be closer to the projection module 1 by changing the surface shape of the curved reflective surface 100. For example... Figure 3 and Figure 4As shown, if the curved reflective surface 100 is a concave reflective surface, the concave reflective surface is concave in the direction of reflection away from the reflective surface. After the light beam emitted from the projection module 1 is reflected by the concave reflective surface, it is projected onto the ground 13 at the first projection position 2 to form a projected image 9. The concave surface can focus the light, thereby increasing the brightness of the projected image 9 and also making the projected image 9 closer to the projection module 1.

[0044] In some embodiments, the concave reflective surface may be formed only on the cross-section of the direction in which the projection position is closer to the projection module. If the first projection position is closer to the projection module than the preset projection position in all directions, then each cross-section of the concave reflective surface along the direction of the beam emitted from the projection module 1 may be a concave reflective surface. This application is not limited to this; if the reflective surface is a concave reflective surface only on one cross-section along the direction of the beam emitted from the projection module 1, the reflective surface may also be considered a concave reflective surface.

[0045] The above is merely an illustrative description of one implementation method that brings the projection distance closer. This application is not intended to limit the scope of the invention, and other methods that bring the projection distance closer are also within the scope of protection of this application.

[0046] In some variations, the projection image 9 obtained by the projection system provided in this application at the first projection position 2 on the ground 13 has a large image size and a close distance. Specifically, the projection image 9 has a larger projection size than the preset projection image size 10, and the first projection position 2 is closer to the projection module 1 than the preset projection position 6. That is, the optical components include both convex and concave reflective surfaces, such as... Figure 9 , Figure 10 and Figure 12 It can increase the brightness of the projected image, make the projection position closer to the projection module 1, and adjust the size of the projected image 9.

[0047] In some embodiments, at least one reflective surface of the optical component is a convex curved reflective surface, so that the size of the projected image 9 can be adjusted at the same time as the sharpness of the projected image 9.

[0048] For some examples of variations, please refer to [link / reference]. Figures 7-12 When there are multiple reflective surfaces, such as Figure 7-8 and Figure 11 As shown, the optical component includes a first reflecting surface 11 and a second reflecting surface 12, wherein the first reflecting surface 11 is a planar reflecting surface and the second reflecting surface 12 is a convex curved reflecting surface; as Figure 9-10 and Figure 12As shown, the optical component includes a first reflective surface 11 and a second reflective surface 12, wherein the first reflective surface 11 is a concave reflective surface and the second reflective surface 12 is a convex reflective surface. In the above embodiment, in the optical path from the projection module 1 to the first projection position 2, the convex reflective surface is close to the first projection position 2. The convex reflective surface is positioned near or in the last reflection in the projection optical path. In the later section before the projection display, the size of the projection image is adjusted by the convex reflective surface to obtain a clear and larger first projection image, avoiding brightness loss caused by beam diffusion during beam transmission.

[0049] In some other implementations, such as Figures 7-12 As shown, the optical component includes multiple reflective surfaces, at least one of which is either a planar reflective surface or a concave reflective surface that alters the direction of the beam from projection module 1. The concave reflective surface is a curved reflective surface recessed in the direction of reflection away from the projector. The concave reflective surface can be used to converge the beam and increase projection brightness.

[0050] For example, such as Figure 7 , Figure 8 and Figure 11 As shown, the optical component includes a first reflecting surface 11 and a second reflecting surface 12 arranged sequentially along the optical path direction. The first reflecting surface 11 is a planar reflecting surface, and the second reflecting surface 12 is a curved reflecting surface. The light beam from the projection module 1 is first reflected by the first reflecting surface 11, then by the second reflecting surface 12, and projected onto the first projection position 2 on the ground 13 to form a clear first projected image 9. Figure 7-8 and Figure 11 As shown, the second reflective surface 12 in each optical component is a convex curved reflective surface. In the optical path from the projection module 1 to the first projection position 2, the convex curved reflective surface is close to the first projection position 2 to diffuse the light beam near the first projection position 2, expand the image area, and avoid brightness loss caused by the diffused light beam in the previous optical path process.

[0051] For example Figures 9-10 and Figure 12 As shown, the optical component includes a first reflecting surface 11 and a second reflecting surface 12 arranged sequentially along the optical path direction. The first reflecting surface 11 is a concave curved reflecting surface, and the second reflecting surface 12 is a convex curved reflecting surface. The light beam from the projection module 1 can first be reflected by the concave curved reflecting surface 1202, and then reflected by the convex curved reflecting surface 1201, and projected onto the ground 13 to form a projected image with a first projection frame.

[0052] Preferably, such as Figure 9 , Figure 10 and Figure 12As shown, in the optical path from the projection module 1 to the first projection position 2, the concave curved reflective surface is close to the projection module 1. The light beam emitted from the projection module 1 is divergent. It is first received by the concave curved reflective surface. By utilizing its light-converging characteristic, the divergent light beam is made more concentrated, which increases the brightness of the projection beam and reduces the projection optical path, making the projection position closer to the projection module 1.

[0053] In some other preferred embodiments, at least one reflective surface may have a semi-transparent, semi-reflective function. For example... Figure 4 , Figure 6 , Figure 8 , Figures 10-12 As shown, the reflective surface reflects the light beam emitted by the projection component while also allowing the light beam emitted by the projection component to pass through the reflective surface. Thus, in addition to the projection image 9 being projected at the first projection position 2, a projection image 9 can also be projected at the position after the light beam passes through the reflective surface, thereby forming projection images 9 at multiple projection positions simultaneously.

[0054] In some of these implementations, such as Figure 4 and Figure 6 As shown, the optical component includes a reflective surface, which is a curved reflective surface 100. The light beam from the projection module 1, after being reflected by this reflective surface, forms a projected image 9 at the first projection position 2. Simultaneously, when the light beam from the projection module 1 is projected onto the curved reflective surface 100, a clear projected image 9 can also be formed at the projection position along the extension line of the light beam through the curved reflective surface 100. In this embodiment, the projection position along the extension line of the light beam through the curved reflective surface 100 is the fourth projection position 7. The fourth projection position 7 can be located directly in front of the projection module 1 or on the ground 13, depending on the emission angle of the projection module 1 or the arrangement of multiple reflective surfaces. For example, in... Figure 4 In the middle, the projection module 1 can form a projected image 9 at the fourth projection position 7 directly in front of it. Figure 6 By adjusting the angle of the projection module 1, in addition to forming the projected image 9 at the first projection position, the projected image 9 can also be formed at the fourth projection position 7 on the ground 13. The distance between the fourth projection position 7 and the position where the projection module 1 is projected onto the ground 13 is greater than the distance between the first projection position 2 and the position where the projection module 1 is projected onto the ground 13.

[0055] In some embodiments, in the optical path direction of the beam emitted from the projection module 1, the optical component may include at least a first reflecting surface 11 and a second reflecting surface 12 arranged sequentially. At least one of the first reflecting surface 11 and the second reflecting surface 12 may be a curved reflecting surface; this is not a limitation. Preferably, at least one of the first reflecting surface 11 and the second reflecting surface 12 is a convex curved reflecting surface, and the convex curved reflecting surface is located close to the first projection position 2 in the optical path from the projection module 1 to the first projection position 2. Figure 8 , Figure 10 , Figures 11-12 As shown, the light beam emitted from the projection module 1 is reflected sequentially by the first reflecting surface 11 and the second reflecting surface 12, and then projected onto the first projection position 2 of the ground 13 to form a projected image 9.

[0056] The first reflective surface 11 can have a semi-transparent and semi-reflective function. The light beam from the projection module 1 is projected onto the first reflective surface 11, and a projected image 9 is formed at the second projection position 3 along the extension line of the light beam passing through the first reflective surface 11. Thus, a projected image 9 is formed simultaneously at both the first projection position 2 and the second projection position 3. The second projection position 3 can be located directly in front of the projection module 1 or on the ground 13, depending on the exit angle of the projection module 1 or the arrangement of multiple reflective surfaces. For example, in... Figure 8 and Figure 10 In the middle, the second projection position 3 is located directly in front of the projection module 1, as shown below. Figures 11-12 The angle of the projection module 1 is adjusted so that the second projection position 3 is located on the ground 13. The distance between the first projection position 2 and the position where the projection module 1 is projected onto the ground 13 is less than the distance between the second projection position and the position where the projection module 1 is projected onto the ground 13. In other words, the first projection position 2 is closer to the projection module 1 than the second projection position 3.

[0057] In some variations, in the optical path direction of the beam emitted from the projection module 1, the optical components may include at least a first reflecting surface 11 and a second reflecting surface 12 arranged sequentially. At least one of the first reflecting surface 11 and the second reflecting surface 12 may be a curved reflecting surface; this is not a limitation. Preferably, the convex curved reflecting surface is located close to the first projection position 2 in the optical path from the projection module 1 to the first projection position 2. After the beam emitted from the projection module 1 is reflected sequentially by the first reflecting surface 11 and the second reflecting surface 12, it is projected onto the first projection position 2 of the ground 13 to form a projected image 9.

[0058] The second reflective surface 12 has a semi-transparent and semi-reflective function, so as to simultaneously form a projected image 9 at the first projection position 2 and the third projection position 4. The second reflective surface 12 is located between the first projection position 2 and the third projection position 4.

[0059] For example, with Figure 17 For example, the second reflective surface 12 has a semi-transparent and semi-reflective function, while the first reflective surface 11 only has a reflective function. Therefore, in addition to forming a projected image 9 at the first projection position 2, a projected image 9 is also formed at the third projection position 4 on the extended light path of the projected beam reflected by the first reflective surface 11. Thus, the second reflective surface 12 is located between the first projection position 2 and the third projection position 4. When applied to a vehicle, the third projection position 4 can be located on the vehicle body, thereby simultaneously projecting the desired image onto both the vehicle body and the ground 13.

[0060] In some embodiments, the transmission region and the reflection region of the reflective surface with semi-transparent and semi-reflective function are independent of each other, partially overlap or overlap each other, wherein the transmission region and the reflection region are independent of each other or partially overlap each other so that the projected images formed at multiple projection positions at the same time are different.

[0061] by Figures 22 to 25 Taking the curved reflective surface 100 as an example, the curved reflective surface 100 includes a transmission region 100A and a reflection region 100B.

[0062] Figure 23 In the process, the transmission region 100A and the reflection region 100B of the curved reflective surface 100 are independent of each other. The projection image 902 of the transmission region 100A at the fourth projection position 7 and the projection image 901 of the reflection region 100B at the first projection position 2 are complementary based on the complete projection image 9.

[0063] Figure 24 In the projection image 9, the transmission region 100A and the reflection region 100B of the curved reflective surface 100 partially overlap. Therefore, the corresponding regions of the projection image 902 of the transmission region 100A at the fourth projection position 7 and the projection image 901 of the reflection region 100B at the first projection position 2 also partially overlap in the complete projection image 9.

[0064] Figure 25 In the projection image 902 of the projection area 100A of the curved reflective surface 100, which includes the reflection area 100B, the projection image 902 of the projection area 100A at the fourth projection position 7 is a complete projection image 9, while the projection image 901 of the reflection area 100B at the first projection position 2 is only a partial projection image 9.

[0065] The above is merely an illustrative example of a curved reflective surface 100. This application is not intended to limit it. Planar reflective surfaces and multi-reflective surfaces with semi-transparent and semi-reflective functions may also have the above-mentioned transmission area and reflection area, so as to project different projection images at different projection positions at the same time. Moreover, the different projection images may be partial images of different regions in the complete projection image 9.

[0066] Furthermore, the overlapping portion of the transmission and reflection regions can be achieved by depositing a semi-transparent, semi-reflective film layer (such as a translucent aluminum coating) on ​​the light-transmitting element. The portion of the transmission region that does not overlap with the reflection region is the fully transparent portion of the light-transmitting element. The portion of the reflection region that does not overlap with the transmission region is achieved by depositing a reflective layer (reflective aluminum coating) on ​​the light-transmitting element. This application can achieve mutually independent, partially overlapping, or fully overlapping transmission and reflection regions in various different ways, which will not be elaborated here.

[0067] In some embodiments, the optical components of the projection system described above may include: an optical element. At least one reflective surface is provided by the same optical element; for example, one optical element can provide one reflective surface, such as... Figures 3-4 and Figure 6 , Figure 13 , Figure 15 As shown. The same optical element can also provide multiple reflective surfaces, for example, a light guide element with multiple total reflection surfaces.

[0068] In some variations, the optical assembly may also include multiple optical elements, with at least one reflecting surface provided by different optical elements. For example, each optical element may be a mirror providing a reflecting surface.

[0069] In some embodiments, at least one reflective surface can be driven to switch at different positions. The reflective surface is used to change the transmission direction of the beam emitted from the projection module 1. Adjusting the position of the reflective surface adjusts the projection position of the beam emitted from the projection module 1, so as to form a projected image 9 at different projection positions.

[0070] Preferably, at least one reflective surface is driven by translation (e.g., Figure 19 ), rotation (such as Figure 18 ) and slip (such as Figure 20 One or more of the following. While adjusting the position of the reflective surface, the angle of the beam emitted from the projection module 1 can also be adjusted to adjust the projection position on the ground 13 and directly in front of the projection module 1 (e.g., Figure 20 and Figure 21 ).

[0071] Furthermore, Figures 19 to 21 An embodiment is shown in which the beam emitted from projection module 1 is projected at a relatively distant location without passing through a reflective surface; however, this application is not intended to limit this embodiment. In some variations, by adjusting the position of the reflective surface using one or more of the aforementioned driving methods, the beam emitted from projection module 1 can be reflected by a reflective surface at a first position for projection at a closer location (e.g., the first projection position); and reflected by a reflective surface at a second position for projection at a more distant location. Such variations are also within the scope of protection of this application. Furthermore, the projection at the first projection position can be referred to as near-field projection, while the projection at a location farther from the first projection position (e.g., the first projection position) can be referred to as near-field projection. Figure 20 and 21 The projection of near-field projection can be referred to as far-field projection. Near-field projection can be used to project dynamic images for welcoming guests or other interactive projections such as projection games. Near-field projection can also be used for vehicle low-beam headlight functionality. Far-field projection can be used to project dynamic images for welcoming guests, movie playback, or other interactive projections such as projection games from a distance. Far-field projection can also be used for vehicle low-beam headlight functionality and / or high-beam headlight functionality. This application is not intended to be limiting.

[0072] The projection system provided in the second aspect of this application includes a projection module 1 and an optical component. The optical component includes at least one reflective surface, at least one of which has a semi-transparent and semi-reflective function. The light beam emitted from the projection module 1 passes through the reflective surface with the semi-transparent and semi-reflective function and is reflected to form an image at the first projection position 2. At the same time, the projection position on the extension line of the light beam passing through the reflective surface forms a projection image 9. Therefore, while changing the projection position, projection images 9 can also be formed simultaneously at multiple projection positions.

[0073] In some implementations, such as Figure 4 , Figure 6 , Figure 13 and Figure 15 As shown, the optical component includes a reflective surface that has a semi-transparent and semi-reflective function. The light beam from projection module 1, after being reflected by this reflective surface, forms a projected image 9 at the first projection position 2. Simultaneously, when the light beam from projection module 1 is projected onto the reflective surface, it passes through the reflective surface, forming the projected image 9 at the projection position on the extension line of the light beam. For example... Figure 4 and Figure 13 As shown, light passing through the reflective surface is projected onto the fourth projection position 7 to form a projected image. The fourth projection position 7 can be located directly in front of the projection module 1 or on the ground 13, depending on the emission angle of the projection module 1 or the arrangement of multiple reflective surfaces. For example... Figure 4 and Figure 13 As shown, the fourth projection position 7 is located directly in front of the projection module 1. For example... Figure 6 and Figure 15 As shown, by adjusting the angle of the projection module 1, the fourth projection position 7 can be located on the ground 13.

[0074] The reflecting surface can be a curved reflecting surface 100 ( Figure 4 and 6 As shown), it can also be a planar reflecting surface 101 (as shown). Figure 13 and Figure 15 The curved reflective surface 100 can also be a convex or concave-convex reflective surface, without any restrictions. The curved reflective surface 100 can also adjust the clarity of the projected image 9.

[0075] In some preferred embodiments, such as Figure 8 , Figures 10-12 , Figure 14 , Figure 16 As shown, In some embodiments, in the optical path direction of the beam emitted from the projection module 1, the optical component may include at least a first reflecting surface 11 and a second reflecting surface 12 arranged sequentially. Preferably, at least one of the first reflecting surface 11 and the second reflecting surface 12 is a convex curved reflecting surface, and the convex curved reflecting surface is located close to the first projection position 2 in the optical path from the projection module 1 to the first projection position 2, such as... Figure 8 , Figure 10 , Figures 11-12 As shown, the light beam emitted from the projection module 1 is reflected sequentially by the first reflecting surface 11 and the second reflecting surface 12, and then projected onto the first projection position 2 of the ground 13 to form a projected image 9.

[0076] The first reflective surface 11 can have a semi-transparent and semi-reflective function. The light beam from the projection module 1 is projected onto the first reflective surface 11, and a projected image 9 is formed at the second projection position 3 along the extension line of the light beam passing through the first reflective surface 11. Thus, a projected image 9 is formed simultaneously at both the first projection position 2 and the second projection position 3. The second projection position 3 can be located directly in front of the projection module 1 or on the ground 13, depending on the exit angle of the projection module 1 or the arrangement of multiple reflective surfaces. For example, in... Figure 8 and Figure 10 In the middle, the second projection position 3 is located directly in front of the projection module 1, as shown below. Figures 11-12 The angle of the projection module 1 is adjusted so that the second projection position 3 is located on the ground 13. The distance between the first projection position 2 and the position where the projection module 1 is projected onto the ground 13 is less than the distance between the second projection position and the position where the projection module 1 is projected onto the ground 13. In other words, the first projection position 2 is closer to the projection module 1 than the second projection position 3.

[0077] In some variations, in the optical path direction of the beam emitted from the projection module 1, the optical components may include at least a first reflecting surface 11 and a second reflecting surface 12 arranged sequentially. Preferably, the convex curved reflecting surface is located close to the first projection position 2 in the optical path from the projection module 1 to the first projection position 2; after the beam emitted from the projection module 1 is reflected sequentially by the first reflecting surface 11 and the second reflecting surface 12, it is projected onto the first projection position 2 of the ground 13 to form a projected image 9.

[0078] The second reflective surface 12 has a semi-transparent and semi-reflective function, so as to simultaneously form a projected image 9 at the first projection position 2 and the third projection position 4. The second reflective surface 12 is located between the first projection position 2 and the third projection position 4.

[0079] For example, with Figure 17For example, the second reflective surface 12 has a semi-transparent and semi-reflective function, while the first reflective surface 11 only has a reflective function. Therefore, in addition to forming a projected image 9 at the first projection position 2, a projected image 9 is also formed at the third projection position 4 on the extended light path of the projected beam reflected by the first reflective surface 11. Thus, the second reflective surface 12 is located between the first projection position 2 and the third projection position 4. When applied to a vehicle, the third projection position 4 can be located on the vehicle body, thereby simultaneously projecting the desired image onto both the vehicle body and the ground 13.

[0080] In the above embodiments, at least one reflecting surface is: a planar reflecting surface 101 and / or a curved reflecting surface 100. The curved reflecting surface 100 is not limited to a convex or concave curved reflecting surface, for example... Figure 4 , Figure 6 , Figure 13 and Figure 15 This demonstrates that when an optical component has a reflecting surface, the reflecting surface can be a planar reflecting surface. Figure 13 and Figure 15 ) or curved reflective surface ( Figure 4 and Figure 6 ), Figure 8 , Figure 10 , Figure 11 , Figure 12 , Figure 14 , Figure 16 The optical assembly shown has a first reflecting surface 11 and a second reflecting surface 12, wherein the first reflecting surface 11 is a planar reflecting surface and the second reflecting surface 12 is a curved reflecting surface. Figure 8 , Figure 11 The first reflecting surface 11 is a curved reflecting surface, and the second reflecting surface 12 is a curved reflecting surface. Figure 10 and Figure 12 The first reflecting surface 11 and the second reflecting surface 12 are both planar reflecting surfaces. Figure 14 and Figure 16 ).

[0081] More preferably, in the optical path from the projection module 1 to the first projection position 2, the convex curved reflective surface is closer to the first projection position 2, and the concave curved reflective surface is closer to the projection module 1.

[0082] In some embodiments, the transmission region and the reflection region of the reflective surface with semi-transparent and semi-reflective function are independent of each other, partially overlap or overlap each other, wherein the transmission region and the reflection region are independent of each other or partially overlap each other so that the projected images formed at multiple projection positions at the same time are different.

[0083] by Figures 22 to 25 Taking the curved reflective surface 100 as an example, the curved reflective surface 100 includes a transmission region 100A and a reflection region 100B.

[0084] Figure 23In the process, the transmission region 100A and the reflection region 100B of the curved reflective surface 100 are independent of each other. The projection image 902 of the transmission region 100A at the fourth projection position 7 and the projection image 901 of the reflection region 100B at the first projection position 2 are complementary based on the complete projection image 9.

[0085] Figure 24 In the projection image 9, the transmission region 100A and the reflection region 100B of the curved reflective surface 100 partially overlap. Therefore, the corresponding regions of the projection image 902 of the transmission region 100A at the fourth projection position 7 and the projection image 901 of the reflection region 100B at the first projection position 2 also partially overlap in the complete projection image 9.

[0086] Figure 25 In the projection image 902 of the projection area 100A of the curved reflective surface 100, which includes the reflection area 100B, the projection image 902 of the projection area 100A at the fourth projection position 7 is a complete projection image 9, while the projection image 901 of the reflection area 100B at the first projection position 2 is only a partial projection image 9.

[0087] The above is merely an illustrative example of a curved reflective surface 100. This application is not intended to limit it. Planar reflective surfaces and multi-reflective surfaces with semi-transparent and semi-reflective functions may also have the above-mentioned transmission area and reflection area, so as to project different projection images at different projection positions at the same time. Moreover, the different projection images may be partial images of different regions in the complete projection image 9.

[0088] In some embodiments, the optical components of the projection system described above may include: an optical element. At least one reflective surface is provided by the same optical element; for example, one optical element can provide one reflective surface, such as... Figures 3-4 and Figure 6 , Figure 13 , Figure 15 As shown. The same optical element can also provide multiple reflective surfaces, for example, a light guide element with multiple total reflection surfaces.

[0089] In some variations, the optical assembly may also include multiple optical elements, with at least one reflecting surface provided by different optical elements. For example, each optical element may be a mirror providing a reflecting surface.

[0090] In some embodiments, at least one reflective surface can be driven to switch at different positions. The reflective surface is used to change the transmission direction of the beam emitted from the projection module 1. Adjusting the position of the reflective surface adjusts the projection position of the beam emitted from the projection module 1, so as to form a projected image 9 at different projection positions.

[0091] Preferably, at least one reflective surface is driven by translation (e.g., Figure 19 ), rotation (such as Figure 18 ) and slip (such as Figure 20 One or more of the following. While adjusting the position of the reflective surface, the angle of the beam emitted from the projection module 1 can also be adjusted to adjust the projection position on the ground 13 and directly in front of the projection module 1 (e.g., Figure 20 and Figure 21 ).

[0092] Furthermore, Figures 19 to 21 An embodiment is shown in which the beam emitted from projection module 1 is projected at a relatively distant location without passing through a reflective surface; however, this application is not intended to limit this embodiment. In some variations, by adjusting the position of the reflective surface using one or more of the aforementioned driving methods, the beam emitted from projection module 1 can be reflected by a reflective surface at a first position for projection at a closer location (e.g., the first projection position); and reflected by a reflective surface at a second position for projection at a more distant location. Such variations are also within the scope of protection of this application. Furthermore, the projection at the first projection position can be referred to as near-field projection, while the projection at a location farther from the first projection position (e.g., the first projection position) can be referred to as near-field projection. Figure 20 and 21 The projection of near-field projection can be referred to as far-field projection. Near-field projection can be used to project dynamic images for welcoming guests or other interactive projections such as projection games. Near-field projection can also be used for vehicle low-beam headlight functionality. Far-field projection can be used to project dynamic images for welcoming guests, movie playback, or other interactive projections such as projection games from a distance. Far-field projection can also be used for vehicle low-beam headlight functionality and / or high-beam headlight functionality. This application is not intended to be limiting.

[0093] A third aspect of this application provides a vehicle light that includes the projection system of any of the above embodiments, and has the technical effects of the above projection system.

[0094] The fourth aspect of this application provides a vehicle including the aforementioned vehicle lights, which have the same technical effects as vehicle lights.

[0095] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A projection system, characterized in that, The system includes a projection module and an optical component. The optical component includes at least one reflective surface, at least one of which is a curved reflective surface. The light beam emitted from the projection module is reflected by the curved reflective surface and projected onto a first projection position on the ground to form a projected image. The curved reflective surface is used to adjust the image distance of the projection module to control the light beam emitted from the projection module to form a clear image at the first projection position.

2. The projection system according to claim 1, characterized in that, The projected image has a first projection area, which is larger than a preset projection area. The preset projection area is the projection area of ​​the projected image formed when the optical component provides a planar reflective surface, and the light beam emitted from the projection module is reflected by the planar reflective surface and projected onto the ground; and / or The distance between the first projection position and the position where the projection module is projected onto the ground is less than the distance between the preset projection position and the position where the projection module is projected onto the ground. The preset projection position is the projection position where the beam emitted by the projection module is reflected by the planar reflective surface of the optical component and then projected onto the ground to form the projection image.

3. The projection system according to claim 2, characterized in that, At least one of the reflecting surfaces is a convex curved reflecting surface, which protrudes in the direction of reflection of the reflecting surface.

4. The projection system according to claim 3, characterized in that, In the optical path from the projection module to the first projection position, the convex curved reflective surface is close to the first projection position.

5. The projection system according to claim 2, characterized in that, The optical component includes multiple reflective surfaces, at least one of which is: Planar reflective surface; or A concave reflective surface, wherein the concave reflective surface is recessed in the direction opposite to the reflection direction of the reflective surface.

6. The projection system according to claim 5, characterized in that, In the optical path from the projection module to the first projection position, the concave reflective surface is close to the projection module.

7. The projection system according to any one of claims 1-6, characterized in that, At least one of the reflective surfaces has a semi-transparent and semi-reflective function to form projected images at multiple projection positions simultaneously.

8. The projection system according to claim 7, characterized in that, The optical component includes at least a first reflective surface and a second reflective surface. The light beam emitted from the projection module is reflected sequentially by the first reflective surface and the second reflective surface and then projected onto a first projection position on the ground to form a projected image. The first reflective surface has a semi-transparent and semi-reflective function, so as to form a projected image at both the first projection position and the second projection position simultaneously; The distance between the first projection position and the position where the projection module is projected onto the ground is less than the distance between the second projection position and the position where the projection module is projected onto the ground.

9. The projection system according to claim 7, characterized in that, The optical component includes at least a first reflective surface and a second reflective surface. The light beam emitted from the projection module is reflected sequentially by the first reflective surface and the second reflective surface and then projected onto a first projection position on the ground to form a projected image. The second reflective surface has a semi-transparent and semi-reflective function, so as to form a projected image at both the first projection position and the third projection position at the same time. The second reflective surface is located between the first projection position and the third projection position.

10. The projection system according to claim 7, characterized in that, The reflective surface with semi-transparent and semi-reflective function includes a transmission region and a reflection region, wherein the transmission region and the reflection region are independent of each other, partially overlap, or overlap. The transmission region and the reflection region are independent of each other or partially overlap so that the projected images formed at multiple projection positions at the same time are different.

11. A projection system, characterized in that, The system includes a projection module and an optical component. The optical component includes at least one reflective surface, at least one of which has a semi-transparent and semi-reflective function. The light beam emitted from the projection module passes through the semi-transparent and semi-reflective reflective surface to form a projected image at multiple projection positions simultaneously.

12. The projection system according to claim 11, characterized in that, The optical component includes at least a first reflective surface and a second reflective surface. The light beam emitted from the projection module is reflected sequentially by the first reflective surface and the second reflective surface and then projected onto a first projection position on the ground to form a projected image. The first reflective surface has a semi-transparent and semi-reflective function, so as to form a projected image at both the first projection position and the second projection position simultaneously; The distance between the first projection position and the position where the projection module is projected onto the ground is less than the distance between the second projection position and the position where the projection module is projected onto the ground.

13. The projection system according to claim 11, characterized in that, The optical component includes at least a first reflective surface and a second reflective surface. The light beam emitted from the projection module is reflected sequentially by the first reflective surface and the second reflective surface and then projected onto a first projection position on the ground to form a projected image. The second reflective surface has a semi-transparent and semi-reflective function, so as to form a projected image at both the first projection position and the third projection position at the same time. The second reflective surface is located between the first projection position and the third projection position.

14. The projection system according to any one of claims 11-13, characterized in that, At least one of the reflecting surfaces is a planar reflecting surface and / or a curved reflecting surface.

15. The projection system according to any one of claims 11-13, characterized in that, The reflective surface with semi-transparent and semi-reflective function includes a transmission region and a reflection region, wherein the transmission region and the reflection region are independent of each other, partially overlap, or overlap. The transmission region and the reflection region are independent of each other or partially overlap so that the projected images formed at multiple projection positions at the same time are different.

16. The projection system according to any one of claims 1-6 and 11-13, characterized in that, The optical components include: An optical element, at least one of the reflecting surfaces being provided by the same optical element; or Multiple optical elements, at least one of the reflecting surfaces is provided by different optical elements.

17. The projection system according to any one of claims 1-6 and 11-13, characterized in that, At least one of the reflective surfaces can be driven to switch between different positions to form the projected image at different projection positions.

18. The projection system according to claim 17, characterized in that, At least one of the reflective surfaces is driven by one or more of translation, rotation, and sliding.

19. A vehicle light, characterized in that, Includes the projection module as described in any one of claims 1-18.

20. A vehicle, characterized in that, Includes the vehicle light as described in claim 19.

Images