Optical assembly and head-up display system

Abstract

The invention relates to the technical field of optics, and discloses an optical assembly, a first light path intersects with a first light splitting surface and a second light splitting surface, the first light splitting surface intersects with a first split light to refract the first split light and form a second light path projecting along a second direction, and the second light splitting surface intersects with a second split light to form a second light path projecting along a second direction. The second light beam is refracted, and a third light path projected in the second direction is formed; the two first lens assemblies are arranged on the second light path and the third light path respectively so as to amplify and rotate the first split light and then project the first split light to the first area to form a first pattern, and to amplify and rotate the second split light and then project the second split light to the second area to form a second pattern. The transverse resolution of the first pattern and the second pattern is larger than the longitudinal resolution, and the first pattern and the second pattern are combined to form a long-strip-shaped picture. The invention provides an optical assembly for improving transverse resolution and picture and a head-up display system.

Description

Technical Field

[0001] This application relates to the field of optical technology, and in particular to optical components and head-up display systems. Background Technology

[0002] In the current field of automotive head-up displays, LCD screens are widely used to display information. This solution uses the reflection of the windshield to provide drivers with key driving information, such as vehicle speed and navigation instructions.

[0003] As the level of intelligence in automobiles continues to increase, drivers are demanding greater richness and clarity of information displayed on head-up displays. Traditional LCD screen solutions are struggling to meet the demands for high resolution and large image size, making it difficult to satisfy the growing need for driver information display. Summary of the Invention

[0004] This application primarily addresses the technical problems of insufficient resolution and image size in existing head-up display technologies. It provides an optical component and head-up display system for improving horizontal resolution and image size.

[0005] To address the aforementioned technical problems, this application provides an optical component, wherein the optical component includes, A light source, wherein the light source forms a first light beam projected along a first direction and forms a first light path projected along the first direction; A first beam splitter is located at one end of the light source along the first direction. The first beam splitter intersects with the first optical path. The first beam splitter includes a first beam splitting surface and a second beam splitting surface. A first angle is formed between the first beam splitting surface and the second beam splitting surface. The first optical path intersects with the first beam splitting surface and the second beam splitting surface respectively, splitting the first beam into a first beam splitter and a second beam splitter. The lateral resolution of the first beam splitter and the second beam splitter is less than the longitudinal resolution. The first beam splitting surface intersects with the first beam splitter to refract the first beam splitter and form a second optical path projected along the second direction. The second beam splitting surface intersects with the second beam splitter to refract the second beam splitter and form a third optical path projected along the second direction. The first lens assembly comprises two lenses, which are respectively disposed on the second optical path and the third optical path to amplify and rotate the first beam and project it onto the first region to form a first pattern, and to amplify and rotate the second beam and project it onto the second region to form a second pattern. The horizontal resolution of the first pattern and the second pattern is greater than the vertical resolution. The first pattern and the second pattern are combined to form an elongated image.

[0006] In one embodiment, the first beam splitter has a first reference surface at one end along the first direction, the first reference surface is horizontally arranged along a third direction, the first beam splitter has a second included angle with the first reference surface, the second beam splitter has a third included angle with the first reference surface, and the second included angle and the third included angle are equal.

[0007] In one embodiment, the first included angle is 90°, and the second included angle and the third included angle are 45°.

[0008] In one possible embodiment, the light source is composed of a DLP optical mechanism, and the light source includes, A light source device, the light source device being used to generate illumination light; The DMD chip forms a first beam by rapidly flipping and reflecting the irradiated light. The second lens assembly, comprising the light source device, the DMD chip, and the second lens assembly arranged sequentially along the first direction, is used to collimate and focus the first light beam.

[0009] In one possible implementation, the first lens assembly includes, A magnifying glass component is disposed on the second optical path and the third optical path to perform focusing and magnification processing on the first beam splitter and the second beam splitter; A reflector component is disposed on the second optical path and the third optical path, and is located after the magnifying lens component, so as to perform rotation processing on the first beam splitter and the second beam splitter to increase the lateral resolution of the first pattern and the second pattern.

[0010] In one possible implementation, the first lens assembly further includes, A light-diffusing plate is provided. The first beam splitter is reflected by the mirror component to form a fourth light path, and the second beam splitter is reflected by the mirror component to form a fifth light path. The light-diffusing plate is provided on both the fourth and fifth light paths. The first surface of the light-diffusing plate is used to receive and reflect light. The first surface is densely covered with scattering particles. The light-diffusing plate in the first lens assembly of the same group forms a fourth angle with the mirror component.

[0011] In one possible implementation, the fourth included angle is 45°.

[0012] In one embodiment, the first pattern and the second pattern are spaced apart in the lateral direction.

[0013] In one embodiment, the first pattern and the second pattern are connected in the lateral direction.

[0014] Another aspect of this application provides a head-up display system, which includes the optical components described in Embodiment 1, wherein the light-diffusing plate is located at the bottom of the windshield and scatters the first beam to form a first pattern in front of the windshield, and scatters the second beam to form a second pattern in front of the windshield, and a fifth angle is formed between the light-diffusing plate and the windshield.

[0015] Compared to existing technologies, the optical components and head-up display of this application split a first beam into a first beam splitter and a second beam splitter using a first beam splitter. The lateral resolution of the first and second beam splitters is less than their lateral resolution. The first beam splitter intersects with the first beam splitting surface to refract the first beam and form a second light path projected along a first direction. The second beam splitter intersects with the second beam splitting surface to refract the second beam and form a third light path projected along a second direction. The first lens assembly magnifies and rotates the first beam splitter before projecting it onto a first area to form a first pattern. The lateral resolution of the first pattern is equal to the lateral resolution of the first beam splitter. The first lens assembly magnifies and rotates the second beam splitter before projecting it onto a second area to form a second pattern. The lateral resolution of the second pattern is equal to the lateral resolution of the second beam splitter. The first and second patterns combine to form a strip-shaped image. The lateral resolution of the strip-shaped image doubles with the further combination of the first and second patterns, and the strip-shaped image can also display more information. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the structure of an optical component of this application; Appendix Figure 2 This is a schematic diagram of the structure of the first beam splitter in this application; Appendix Figure 3 This is a schematic diagram of one structure of the first lens assembly of this application; Appendix Figure 4 This is a schematic diagram of the first change between the first and second spectral splits in this application; Appendix Figure 5 This is a schematic diagram of the second change between the first and second spectral splits in this application; Appendix Figure 6 This is a schematic diagram of the third change between the first and second spectral splits in this application.

[0017] Explanation of the labels in the diagram: X, first direction; Y, second direction; Z, third direction; a. First included angle; b. Second included angle; c. Third included angle; d. Fourth included angle; 10. Optical components; 100. Light source component; 110. DMD chip; 120. Second lens assembly; 121. TIR lens; 122. Relay lens; 200, First beam splitter; 210, First beam splitting surface; 220, Second beam splitting surface; 230, First reference surface; 300. First lens assembly; 310. Magnifying glass assembly; 320. Reflecting mirror assembly; 330. Light-diffusing plate; 20. First beam; 21. First beam split; 22. Second beam split; 30. Optical path; 31. First optical path; 32. Second optical path; 33. Third optical path; 34. Fourth optical path; 35. Fifth optical path. Detailed Implementation

[0018] To make the objectives, features, and advantages of this application more apparent and understandable, 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. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] The existing head-up display technology has technical problems with insufficient resolution and image size.

[0020] Therefore, this application provides an optical component, wherein the optical component includes, A light source, wherein the light source forms a first light beam projected along a first direction and forms a first light path projected along the first direction; A first beam splitter is located at one end of the light source along the first direction. The first beam splitter intersects with the first optical path. The first beam splitter includes a first beam splitting surface and a second beam splitting surface. A first angle is formed between the first beam splitting surface and the second beam splitting surface. The first optical path intersects with the first beam splitting surface and the second beam splitting surface respectively, splitting the first beam into a first beam splitter and a second beam splitter. The lateral resolution of the first beam splitter and the second beam splitter is less than the longitudinal resolution. The first beam splitting surface intersects with the first beam splitter to refract the first beam splitter and form a second optical path projected along the second direction. The second beam splitting surface intersects with the second beam splitter to refract the second beam splitter and form a third optical path projected along the second direction. The first lens assembly comprises two lenses, which are respectively disposed on the second optical path and the third optical path to amplify and rotate the first beam and project it onto the first region to form a first pattern, and to amplify and rotate the second beam and project it onto the second region to form a second pattern. The horizontal resolution of the first pattern and the second pattern is greater than the vertical resolution. The first pattern and the second pattern are combined to form an elongated image.

[0021] Another aspect of this application provides a head-up display system, which includes the optical components described in Embodiment 1. The light-diffusing plate is located at the bottom of the windshield and scatters the first beam to form a first pattern in front of the windshield and scatters the second beam to form a second pattern in front of the windshield. A fifth angle is formed between the light-diffusing plate and the windshield.

[0022] Example 1: The current widely used LCD screen solution in the automotive head-up display field generates the original driving image through a high-brightness custom LCD screen, relies on a high-brightness LED backlight for supplemental lighting, and then transmits and adjusts the light through optical systems such as freeform surface mirrors or lens groups. After being reflected by a special windshield, it forms a virtual image 2-10 meters in front of the driver, thus displaying key information such as vehicle speed and navigation. However, this solution is based on the passive imaging principle of backlight transmission, which has inherent shortcomings in pixel physical structure, brightness and power consumption, optical adaptation, and high-temperature stability. When facing the demand for high horizontal resolution, small-sized screens are difficult to use. Stacking enough pixels results in limited pixel density, low yield, and high cost. When facing the demand for large-format displays, the brightness needs to be greatly increased, leading to a surge in power consumption. Contrast is prone to collapse under strong light, and a large field of view will exacerbate image distortion and ghosting. This forces the optical housing to become uncontrollable and causes the LCD screen to work under high load, resulting in reliability issues such as image retention and ghosting. The cost of supporting high-precision optical components and customized windshields also increases sharply. Therefore, it is inadequate for the demand for high horizontal resolution and large-format displays, and it is difficult to meet the growing demand of drivers for richer and clearer display information in the context of intelligent vehicles.

[0023] Please refer to the attached document. Figure 1 To be continued Figure 6 As shown, in this embodiment, the first direction X refers to the height direction of the optical component 10, that is, the direction from top to bottom or from bottom to top. In this embodiment, the light source 100 is positioned lower than the first beam splitter 200, and the first beam splitter 200 is positioned higher than the light source 100. The second direction Y refers to the length direction of the optical component 10, that is, the direction from left to right or from right to left. In this embodiment, the first beam splitter 210 is positioned to the left of the second beam splitter 220, and the second beam splitter 220 is positioned to the right of the first beam splitter 210. The third direction Z refers to the width direction of the optical component 10, that is, the direction from front to back or from back to front. In this embodiment, the reflector 320 is positioned forward of the light-diffusing plate 330, and the light-diffusing plate 330 is positioned backward of the reflector 320.

[0024] Furthermore, in this embodiment, the path that the light travels is called the optical path 30. The optical path 30 is divided into the first optical path 31, the second optical path 32, the third optical path 33, the fourth optical path 34 and the fifth optical path 35 according to the different directions of operation. The first optical path 31 to the fifth optical path 35 will be further introduced later.

[0025] Appendix Figure 1 This is a schematic diagram of one structure of the optical component 10 of this application. Please refer to the attached diagram. Figure 1 As shown, the optical component 10 of this embodiment includes a light source 100, which is used to emit a first light beam 20. The first light beam 20 is projected along a first direction X and forms a first optical path 31 projected along the first direction X. After being projected by the light source 100, the first light beam 20 has lateral resolution in the second direction Y and longitudinal resolution in the third direction Z.

[0026] In one embodiment, the light source 100 is composed of a DLP optical mechanism. The light source 100 includes a light source device located on one side of the TIR lens 121 along a first direction. The light source device is used to form illumination light projected along a second direction Y. Figure 1 Not shown in the diagram, the light source device is generally composed of an LED lamp, a laser, or a xenon lamp. The light source 100 also includes a DMD chip 110, which forms a first beam 20 by rapidly reversing and reflecting light. The light source 100 also includes a second lens assembly 120. The light source device, DMD chip 110, and second lens assembly 120 are arranged sequentially along a first direction X, with the second lens assembly 120 positioned close to the first beam splitter 200. Furthermore, the second lens assembly 120 includes a TIR lens 121 and a relay lens 122. The light source 100 in this embodiment, composed of a DLP optical engine, is only one specific implementation of this application; the light source 100 of this application can also be composed of other light sources.

[0027] In specific implementation, the light source device forms an illumination light projected along the second direction Y. The illumination light is incident on the TIR lens 121, and the incident angle is greater than the critical angle, resulting in total internal reflection. The illumination light is reflected to the DMD chip 110. The DMD chip 110 forms a first beam 20 by rapidly reversing the reflection of the illumination light. The first beam 20 reaches the TIR lens 121 again. At this time, the incident angle of the TIR lens 121 is less than the critical angle. The first beam 20 is projected by the TIR lens 121 to be further projected onto the relay lens 122. The relay lens 122 collimates and focuses the first beam 20.

[0028] Please refer to the attached document. Figure 1As shown, the optical component 10 of this application further includes a first beam splitter 200. The first beam splitter 200 is located at one end of the light source 100 along the first direction X. The first optical path 31 intersects with the first beam splitter 200, that is, the first beam 20 is formed by the light source 100 and then projected toward the first beam splitter 200, intersecting with the first beam splitter 200. The first beam splitter 200 includes a first beam splitting surface 210 and a second beam splitting surface 220. The splitting of the first beam splitting surface 210 and the second beam splitting surface 220 is to further split the first beam 21 into a first beam splitter 21 and a second beam splitter 22. The first beam splitter 21 and the second beam splitter 22 are split according to physical dimensions. The ratio between the first beam splitter 21 and the second beam splitter 22 is achieved by adjusting the relative position between the light source 100 and the first beam splitter 200. In this embodiment, the portion where the first beam 20 intersects with the first beam-splitting surface 210 is the first beam splitter 21, and the portion where the first beam 20 intersects with the second beam-splitting surface 220 is the second beam splitter 22. The first beam-splitting surface 210 intersects with the first beam splitter 21 to refract the first beam splitter 21 and form a second optical path 32 projected along the second direction Y. The second beam-splitting surface 220 intersects with the second beam splitter 22 to refract the second beam splitter 22 and form a third optical path 33 projected along the second direction Y. Please refer to the appendix. Figure 4 As shown, with a fixed pixel density, the physical size of the first beam 20 determines the resolution. The lengths of the first beam splitter 21 and the second beam splitter 22 in the second direction Y are less than the lengths in the third direction Z. Therefore, the lateral resolution of the first beam splitter 21 and the second beam splitter 22 at the first beam splitter 200 is less than the longitudinal resolution.

[0029] Furthermore, in this embodiment, the method of splitting the first beam 20 into a first beam splitter 21 and a second beam splitter 22 by the first beam splitter 200 saves the use of the light source 100. In the prior art, if the projection of the first beam splitter 21 and the second beam splitter 22 needs to be achieved simultaneously, two light source 100s are required. Therefore, the optical component 10 of this application reduces the use of the light source 100, thereby further reducing the cost of the optical component 10, and the overall space occupied is also further reduced, making it more suitable for vehicle use.

[0030] In one embodiment, the first beam-splitting surface 210 and the second beam-splitting surface 220 are two reflective surfaces on the first beam-splitting element 200, and the reflective surfaces of the first beam-splitting surface 210 and the second beam-splitting surface 220 are arranged facing the light source element 100.

[0031] Appendix Figure 2 This is a schematic diagram of one structure of the first beam splitter 200 of this application. Please refer to the attached diagram. Figure 2As shown, the first beam splitter 200 has a first reference surface 230 at one end along the first direction X, and the first reference surface 230 is located on the side close to the light source 100. The first reference surface 230 is horizontally arranged along the third direction Z, that is, the first reference surface 230 is a plane formed by the second direction Y and the third direction Z. In this embodiment, the first reference surface 230 does not exist. The first reference surface 230 is provided to further describe the first beam splitter 210 and the second beam splitter 220. The first beam splitter 210 and the second beam splitter 220 form a first included angle α. The formation of the first included angle α indicates that the first beam splitter 210 and the second beam splitter 220 are not arranged in parallel. The extension line of the first beam splitter 210 intersects the extension line of the second beam splitter 220, or the first beam splitter 210 and the second beam splitter 220 intersect directly. This ensures that the first beam splitter 21, after passing the first beam splitter surface 210, and the second beam splitter 22, after passing the second beam splitter surface 220, continue to run in opposite directions, preparing for the subsequent combination of the first and second patterns. Furthermore, a second included angle b is formed between the first beam splitter surface 210 and the first reference surface 230, and a third included angle c is formed between the second beam splitter surface 220 and the second reference surface, with the second included angle b and the third included angle c being equal. In this embodiment, the sum of the first included angle a, the second included angle b, and the third included angle c is 180°.

[0032] In one embodiment, the first included angle a is 90°, the second included angle b and the third included angle c are 45°. The specific values ​​of the first included angle a, the second included angle b and the third included angle c are only a specific allocation method in this embodiment.

[0033] Please refer to the attached document. Figure 1As shown, the optical component 10 of this application also includes a first lens component 300. Two first lens components 300 are respectively disposed on the second optical path 32 and the third optical path 33. The first lens component 300 disposed on the second optical path 32 magnifies and rotates the first beam splitter 21 and projects it onto the first region to form a first pattern. The first lens component 300 disposed on the third optical path 33 magnifies and rotates the second beam splitter 22 and projects it onto the second region to form a second pattern. Further, after rotation, the lateral resolution of the first pattern is equal to the original vertical resolution of the first beam splitter 21, and the vertical resolution of the first pattern is equal to the original vertical resolution of the first beam splitter 21. Since the lateral resolution of the first beam splitter 21 is less than its vertical resolution, it can be concluded that the lateral resolution of the first pattern is greater than its vertical resolution. Similarly, it can be concluded that the lateral resolution of the second pattern is greater than its vertical resolution. Furthermore, under the magnification and rotation of the optical component 10 in this embodiment, the lateral area of ​​the first beam splitter 21 and the second beam splitter 22 is further expanded, forming the first pattern and the second pattern. When the first and second patterns are combined, they form a long, narrow image, doubling both its horizontal resolution and width to display more information more clearly. The increased width does not obstruct the driver's view.

[0034] Furthermore, the elongated image, composed of the first and second patterns, is located between the left and right pillars A and B.

[0035] In one embodiment, the first pattern and the second pattern are spaced apart in the lateral direction.

[0036] In one embodiment, the first pattern and the second pattern are connected in the lateral direction.

[0037] Please refer to the attached document. Figure 1 As shown, the first lens assembly 300 of this embodiment includes a magnifying lens component 310, which is disposed on the second optical path 32 and the third optical path 33 to perform focusing and magnification processing of the first beam splitter 21 and the second beam splitter 22. Furthermore, after passing through the magnifying lens component 310, the patterns of the first beam splitter 21 and the second beam splitter 22 are rotated compared to the first beam splitter 21 and the second beam splitter 22 emitted by the first beam splitter 200.

[0038] The first lens assembly 300 in this embodiment also includes a reflector component 320. The reflector component 320 is disposed on the second optical path 32 and the third optical path 33, and is located after the magnifying lens component 310. That is, the first beam splitter 21 and the second beam splitter 22 pass through the magnifying lens component 310 and the reflector component 320 in sequence, so as to rotate the first beam splitter 21 and the second beam splitter 22 and present the original vertical resolution of the first beam splitter 21 and the second beam splitter 22 through the horizontal resolution after rotation, so as to increase the horizontal resolution of the first pattern and the second pattern.

[0039] Appendix Figure 4 This is a schematic diagram illustrating the first change between the first beam splitter 21 and the second beam splitter 22 in this embodiment. Figure 5 This is a schematic diagram illustrating the second change between the first beam splitter 21 and the second beam splitter 22 in this embodiment. Figure 6 This is a schematic diagram illustrating the third change between the first beam splitter 21 and the second beam splitter 22 in this embodiment. Please refer to the attached diagram. Figure 4 As shown, the first beam 20 is in the stage after projection from the light source 100, and under the splitting of the first beam splitter 200, the first beam 20 is split into a first beam splitter 21 and a second beam splitter 22. When the first beam splitter 21 and the second beam splitter 22 come into contact with the first beam splitter 200, the first beam splitter 21 and the second beam splitter 22 are arranged along the second direction Y and the third direction Z, and form projection along the first direction X. In this state, the second direction Y of the first beam splitter 21 and the second beam splitter 22 is its lateral direction, that is, the layout direction of the lateral resolution. In this state, the third direction Z of the first beam splitter 21 and the second beam splitter 22 is its longitudinal direction, that is, the layout direction of the longitudinal resolution. Please refer to the appendix. Figure 5 The diagram shown illustrates the rotation between the first beam splitter 21 and the second beam splitter 22. The relative rotation of the first beam splitter 21 and the second beam splitter 22 can form the following pattern: Figure 6 The final state is shown, and the relative rotation between the first beam splitter 21 and the second beam splitter 22 is a three-dimensional rotation. Please refer to the appendix. Figure 6 As shown, this is the relative state of the first beam splitter 21 and the second beam splitter 22 after rotation. The first beam splitter 21 and the second beam splitter 22 are arranged along the first direction X and the second direction Y, and projected along the third direction Z. In this state, the second direction Y of the first beam splitter 21 and the second beam splitter 22 is its transverse direction, i.e., attached... Figure 1 The longitudinal direction of the first beam splitter 21 and the second beam splitter 22 is, in this state, the first direction X of the first beam splitter 21 and the second beam splitter 22 is its longitudinal direction, that is, the attached... Figure 1 The horizontal direction of the first beam splitter 21 and the second beam splitter 22. As can be seen from the above figures, after rotation and splicing, the horizontal width of the elongated image formed by the first pattern and the second pattern increases significantly, and its horizontal resolution also increases simultaneously.

[0040] Please refer to the attached document. Figure 1As shown, the first lens assembly 300 in this embodiment also includes a light-diffusing plate 330. The first beam splitter 21, after being reflected by the mirror component 320, forms a fourth light path 34. The second beam splitter 22, after being reflected by the mirror component 320, forms a fifth light path 35. Both the fourth light path 34 and the fifth light path 35 are equipped with light-diffusing plates 330. The first surface of the light-diffusing plate 330 is used to receive and reflect light. The first surface is densely covered with scattering particles to transform the uneven incident light into uniform and soft outgoing light, while simultaneously adjusting the direction of the light as needed. Please refer to the appendix. Figure 3 As shown, the light-diffusing plate 330 and the reflector component 320 in the first lens assembly 300 of the same group form a fourth included angle d.

[0041] In one embodiment, the fourth included angle d is 45°, and the size of the fourth included angle d is determined according to the direction that the light needs to be adjusted.

[0042] The optical component 10 in this embodiment can be applied to various scenarios, such as projection scenarios and lighting scenarios.

[0043] Example 2 This embodiment further explains the application of the optical components in Embodiment 1 in a projection scenario. The head-up display system of this embodiment includes the optical components of Embodiment 1, and the optical components will not be described in detail here. In the head-up display of this embodiment, the light-diffusing plate is located at the bottom of the windshield, and it scatters the first beam to form a first pattern in front of the windshield, and scatters the second beam to form a second pattern in front of the windshield. A fifth angle is formed between the light-diffusing plate and the windshield.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0045] 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 at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An optical component, characterized in that, The optical components include, A light source, wherein the light source forms a first light beam projected along a first direction and forms a first light path projected along the first direction; A first beam splitter is located at one end of the light source along the first direction. The first beam splitter intersects with the first optical path. The first beam splitter includes a first beam splitting surface and a second beam splitting surface. A first angle is formed between the first beam splitting surface and the second beam splitting surface. The first optical path intersects with the first beam splitting surface and the second beam splitting surface respectively, splitting the first beam into a first beam splitter and a second beam splitter. The lateral resolution of the first beam splitter and the second beam splitter is less than the longitudinal resolution. The first beam splitting surface intersects with the first beam splitter to refract the first beam splitter and form a second optical path projected along the second direction. The second beam splitting surface intersects with the second beam splitter to refract the second beam splitter and form a third optical path projected along the second direction. The first lens assembly comprises two lenses, which are respectively disposed on the second optical path and the third optical path to amplify and rotate the first beam and project it onto the first region to form a first pattern, and to amplify and rotate the second beam and project it onto the second region to form a second pattern. The horizontal resolution of the first pattern and the second pattern is greater than the vertical resolution. The first pattern and the second pattern are combined to form an elongated image.

2. The optical component according to claim 1, characterized in that, The first beam splitter has a first reference surface at one end along the first direction. The first reference surface is horizontally arranged along the third direction. The first beam splitter and the first reference surface have a second included angle. The second beam splitter and the first reference surface have a third included angle. The second included angle and the third included angle are equal.

3. The optical component according to claim 2, characterized in that, The first included angle is 90°, and the second included angle and the third included angle are 45°.

4. The optical component according to claim 1, characterized in that, The light source is composed of a DLP optical mechanism, and the light source includes, A light source device, the light source device being used to generate illumination light; The DMD chip forms a first beam by rapidly flipping and reflecting the irradiated light. The second lens assembly, comprising the light source device, the DMD chip, and the second lens assembly arranged sequentially along the first direction, is used to collimate and focus the first light beam.

5. The optical component according to claim 4, characterized in that, The first lens assembly includes, A magnifying glass component is disposed on the second optical path and the third optical path to perform focusing and magnification processing on the first beam splitter and the second beam splitter; A reflector component is disposed on the second optical path and the third optical path, and is located after the magnifying lens component, so as to perform rotation processing on the first beam splitter and the second beam splitter to increase the lateral resolution of the first pattern and the second pattern.

6. The optical component according to claim 5, characterized in that, The first lens assembly also includes, A light-diffusing plate is provided. The first beam splitter is reflected by the mirror component to form a fourth light path, and the second beam splitter is reflected by the mirror component to form a fifth light path. The light-diffusing plate is provided on both the fourth and fifth light paths. The first surface of the light-diffusing plate is used to receive and reflect light. The first surface is densely covered with scattering particles. The light-diffusing plate in the first lens assembly of the same group forms a fourth angle with the mirror component.

7. The optical component according to claim 6, characterized in that, The fourth included angle is 45°.

8. The optical component according to claim 6, characterized in that, The first pattern and the second pattern are spaced apart in the horizontal direction.

9. The optical component according to claim 6, characterized in that, The first pattern and the second pattern are connected in the horizontal direction.

10. A head-up display system, characterized in that, The optical component includes any one of claims 6 to 9, wherein the light-diffusing plate is located at the bottom of the windshield and scatters the first beam to form a first pattern in front of the windshield, and scatters the second beam to form a second pattern in front of the windshield, wherein a fifth angle is formed between the light-diffusing plate and the windshield.

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