Optical element, optical system, and vehicle
By setting multiple translucent and reflective unit surfaces on the translucent surface and reflector of the headlight, the problem that plastic parts cannot simulate the texture of crystal gems is solved, and a low-cost, lightweight headlight styling surface with brilliant light effects and a sense of luxury is achieved.
Patent Information
- Application Number
- CN202421923725.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-08-08
AI Technical Summary
In the existing technology, the use of plastic parts to manufacture the styling surface of the headlights cannot effectively simulate the texture of crystal gems, and the cost is high, which does not meet the lightweight requirements.
An optical element and an optical system are designed. By arranging multiple light-transmitting unit surfaces on a light-transmitting surface and a reflective unit surface on a reflector, light is emitted in different directions, forming a brilliant light effect like a crystal gem.
It achieves a low-cost, lightweight headlight styling surface with a brilliant light effect like a crystal gem, enhancing the luxury of the headlight.
Smart Images
Figure CN223306747U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamps, in particular to an optical element, and further to an optical system and a vehicle. Background Art
[0002] Car lights are devices that can be used for nighttime lighting, and their special shape and lighting effects can provide good decoration for the vehicle.
[0003] Generally, headlight components with a crystal gem texture can bring a luxurious feel to a vehicle, meeting the demands of the current high-end vehicle market. However, genuine jewelry materials are expensive and heavy, which does not conform to the concept of lightweighting. Even if glass is used instead of jewelry materials, while it can achieve a better crystal gem texture, it is also expensive and does not conform to the concept of lightweighting.
[0004] In the prior art, plastic parts are often used to replace real jewelry or glass materials to manufacture the styling surface of the headlights. However, the styling surface of the plastic parts has a weak crystal gem texture in the light emitted by the headlights themselves and in the sunlight, and lacks a dazzling light effect.
[0005] Therefore, how to use low-cost materials to create a car lamp styling surface with a crystal gem texture so that the car lamp has a brilliant light effect is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0006] Firstly, the technical problem to be solved by the present invention is to provide an optical element, so as to solve the problem of using low-cost materials to create a car lamp styling surface with a crystal gem texture, so that the car lamp has a brilliant light effect.
[0007] Secondly, the technical problem to be solved by the present invention is to provide an optical system. Since it has the optical elements in the above-mentioned technical solution, it also has all the technical effects of the above-mentioned optical elements, and can present a crystal gem-like brilliant light effect under the illumination of the optical system's own light and external light sources such as sunlight.
[0008] Finally, the technical problem to be solved by the present invention is to provide a vehicle which, because it has the optical element or optical system in the above technical solution, also has all the technical effects of the above optical element or optical system.
[0009] In order to solve the above technical problems, the first aspect of the present invention provides an optical element, the optical element comprising a first light-transmitting surface and a second light-transmitting surface arranged in sequence along a front-to-back direction, wherein the first light-transmitting surface is provided with a plurality of first light-transmitting unit surfaces, and the normal directions of adjacent first light-transmitting unit surfaces are inconsistent; the second light-transmitting surface is provided with a plurality of second light-transmitting unit surfaces, and the normal directions of adjacent second light-transmitting unit surfaces are inconsistent;
[0010] In the front-to-back direction, the first light-transmitting unit surface partially overlaps with the second light-transmitting unit surface in the corresponding area, and the normal directions of the two are inconsistent.
[0011] Furthermore, the side length of the first light-transmitting unit surface is greater than or equal to 3 mm and less than or equal to 30 mm, and the first light-transmitting unit surface is a plane or a nearly plane.
[0012] Furthermore, some of the first light-transmitting unit surfaces are polygonal surfaces, and some of the first light-transmitting unit surfaces are triangular surfaces, and the number of the first light-transmitting unit surfaces that are triangular surfaces accounts for at least 98% of the total number of the first light-transmitting unit surfaces; or, the projection area of the first light-transmitting unit surfaces that are triangular surfaces in the front-to-back direction accounts for at least 98% of the projection area of the first light-transmitting surface in the front-to-back direction.
[0013] Furthermore, the side length of the second light-transmitting unit surface is greater than or equal to 3 mm and less than or equal to 30 mm, and the second light-transmitting unit surface is a plane or a nearly plane.
[0014] Furthermore, some of the second light-transmitting unit surfaces are polygonal surfaces, and some of the second light-transmitting unit surfaces are triangular surfaces, and the number of the second light-transmitting unit surfaces that are triangular surfaces accounts for at least 98% of the total number of the second light-transmitting unit surfaces; or, the projection area of the second light-transmitting unit surfaces that are triangular surfaces in the front-to-back direction accounts for at least 98% of the projection area of the second light-transmitting surface in the front-to-back direction.
[0015] Furthermore, the thickness of the optical element is greater than or equal to 1.5 mm and less than or equal to 8 mm.
[0016] Furthermore, the optical element is a plastic molded part.
[0017] Furthermore, at least part of the first light-transmitting unit surface has at least two second light-transmitting unit surfaces partially overlapping with it in the front-back projection direction to form a light-returning unit, so that light emitted from the first light-transmitting unit surface is reflected toward one of the second light-transmitting unit surfaces and then reflected toward the first light-transmitting unit surface via the other second light-transmitting unit surface.
[0018] A second aspect of the present invention provides an optical system, comprising an optical element, a light source, and a reflector, wherein the optical element comprises a first light-transmitting surface and a second light-transmitting surface sequentially arranged in a front-to-rear direction, at least one of the first light-transmitting surface and the second light-transmitting surface being provided with a plurality of light-transmitting unit surfaces, the light source being configured to emit light toward the reflector, the reflective surface of the reflector being configured with a plurality of reflective unit surfaces configured to reflect the light toward the optical element, and the normal directions of adjacent reflective unit surfaces being inconsistent;
[0019] In the front-to-back direction, the reflective unit surface partially overlaps with the light-transmitting unit surface of the corresponding area, and is inconsistent with the normal direction of the light-transmitting unit surface of the corresponding area.
[0020] Furthermore, the first light-transmitting surface is provided with a plurality of first light-transmitting unit surfaces, and the normal directions of adjacent first light-transmitting unit surfaces are inconsistent; the second light-transmitting surface is provided with a plurality of second light-transmitting unit surfaces, and the normal directions of adjacent second light-transmitting unit surfaces are inconsistent;
[0021] In the front-to-back direction, the first light-transmitting unit surface partially overlaps with the second light-transmitting unit surface of the corresponding area, and the normal directions of the two are inconsistent; the reflecting unit surface partially overlaps with the first light-transmitting unit surface and the second light-transmitting unit surface of the corresponding area, and the normal directions of the reflecting unit surface and the first light-transmitting unit surface and the second light-transmitting unit surface of the corresponding area are inconsistent.
[0022] Furthermore, the minimum side of the reflective unit surface is greater than 1 / 2 of the minimum side length of the corresponding first light-transmitting unit surface and the second light-transmitting unit surface, and the second light-transmitting unit surface is a plane or a nearly plane.
[0023] Furthermore, some of the reflection unit surfaces are polygonal surfaces, and some of the reflection unit surfaces are triangular surfaces, and the number of the reflection unit surfaces in the form of triangular surfaces accounts for at least 98% of the total number of the reflection unit surfaces; or, the projection area of the reflection unit surfaces in the form of triangular surfaces in the front-to-back direction accounts for at least 98% of the projection area of the reflector in the front-to-back direction.
[0024] Furthermore, a plurality of rows of reflection unit surfaces are formed on the reflection surface of the reflector, and two adjacent rows of reflection unit surfaces can form a step structure, and grooves recessed away from the optical element are formed on the edges of the step structure protruding toward the optical element.
[0025] A third aspect of the present invention provides a vehicle, which includes the optical element or optical system in the above technical solution.
[0026] Through the above technical solution, the beneficial effects of the utility model are as follows:
[0027] The first aspect of the present invention provides an optical element, wherein when light passes through the optical element, after passing through the second light-transmitting unit surface, the light will be emitted toward the first light-transmitting unit surface in various different directions; there are multiple first light-transmitting unit surfaces with different normal directions on the first light-transmitting unit surface, so that the light will eventually be emitted from each first light-transmitting unit surface, so that when observing the car light, the light can be seen to be emitted from different observation angles, so as to form a brilliant light effect with the texture of crystal gemstone, thereby enhancing the luxury of the car light. In addition, because the corresponding first light-transmitting unit surface and the second light-transmitting unit surface partially overlap in the front-to-back direction, and the normal directions of any two are inconsistent, the light emitted from the second light-transmitting unit surface can be emitted toward at least one first light-transmitting unit surface, thereby dividing the light into multiple beams and emitting them in different directions from the first light-transmitting unit surface, which can enhance the brilliant texture of the light and make the car light more luxurious.
[0028] The second aspect of the present invention provides an optical system, in which the light emitted by the light source will first be emitted to the reflector, and then reflected to the optical element by the reflector. Since there are multiple reflection unit surfaces on the reflector, and the normals of each reflection unit surface are inconsistent, the light will be emitted to the optical element at various angles after being reflected by the reflector. Since the optical element includes a first light-transmitting surface and a second light-transmitting surface arranged in sequence along the front-to-back direction, and a plurality of light-transmitting unit surfaces are provided on at least one of the first light-transmitting surface and the second light-transmitting surface, the light will eventually be emitted from the first light-transmitting surface in different directions, so that when observing the car lights, light can be seen being emitted from different observation angles, so as to form a dazzling light effect like the texture of a crystal gem, thereby enhancing the luxury of the car lights.
[0029] A third aspect of the present invention provides a vehicle that, because it has the optical system in the above technical solution, also has all the technical effects of the optical element or optical system.
[0030] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:
[0032] Figure 1 It is a front view of the optical element of the present utility model;
[0033] Figure 2 It is a rear view of the optical element of the present invention;
[0034] Figure 3It is a front view of the reflector in the optical system of the utility model;
[0035] Figure 4 It is a cross-sectional view of the optical system of the present invention after being cut along the longitudinal direction;
[0036] Figure 5 This is a schematic diagram of the correct positional relationship between the first light-transmitting unit surface and the second light-transmitting unit surface in the optical element of the present invention in the front-back projection direction;
[0037] Figure 6 This is a schematic diagram of the incorrect positional relationship between the first light-transmitting unit surface and the second light-transmitting unit surface in the optical element of the present invention in the front-back projection direction;
[0038] Figure 7 It is a schematic diagram of the principle of the optical element of the utility model reflecting the external light of the headlight.
[0039] Description of Reference Numerals
[0040] 1. Light source; 2. Reflector; 21. Reflecting unit surface; 22. Groove; 3. Optical element; 31. First light-transmitting surface; 311. First light-transmitting unit surface; 311′, light-transmitting surface A; 311″, light-transmitting surface B; 311″′, light-transmitting surface C; 32. Second light-transmitting surface; 321, second light-transmitting unit surface; 321′, light-transmitting surface D; 321″, light-transmitting surface E. DETAILED DESCRIPTION
[0041] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the specific embodiments described below.
[0042] It should be noted that the front, back, left and right in this article are all determined with the vehicle as the reference system.
[0043] The first aspect of the present invention provides an optical element. The optical element 3 can be made of plastic (PC or PMMA), and as Figures 1 to 5 As shown, the optical element 3 specifically includes a first light-transmitting surface 31 transmission portion and a second light-transmitting surface 32 sequentially arranged along the front-to-back direction. The first light-transmitting surface 31 is provided with a plurality of first light-transmitting unit surfaces 311, and the normal directions of adjacent first light-transmitting unit surfaces 311 are inconsistent; the second light-transmitting surface 32 is provided with a plurality of second light-transmitting unit surfaces 321, and the normal directions of adjacent second light-transmitting unit surfaces 321 are inconsistent; in the front-to-back direction, the first light-transmitting unit surfaces 311 partially overlap with the second light-transmitting unit surfaces 321 in the corresponding area, and the normal directions of the two are inconsistent, wherein, as shown in FIG. Figure 5 and Figure 6As shown, partial overlap means that in the front-to-back projection direction, at least two edges of the first light-transmitting unit surface 311 and the second light-transmitting unit surface 321 intersect, and do not include a containing or completely overlapping relationship.
[0044] Based on the above design, when light is emitted toward the second light-transmitting surface 32 of the optical element 3, since there are multiple second light-transmitting unit surfaces 321 with different normals on the second light-transmitting surface 32, after passing through the second light-transmitting unit surface 321, the light will be emitted toward the first light-transmitting surface 31 in various directions, and there are multiple first light-transmitting unit surfaces 311 with different normals on the first light-transmitting surface 31. Therefore, the light will eventually be emitted from each first light-transmitting unit surface 311, so that when observing the car lights, light can be seen emitted from different observation angles, so as to form a dazzling light effect like the texture of a crystal gem, thereby enhancing the luxury of the car lights, and the optical element 3 has low manufacturing cost and light weight, so that the car lights can also have lighter weight and lower cost.
[0045] In addition, since the corresponding first light-transmitting unit surface 311 and the second light-transmitting unit surface 321 partially overlap in the front-to-back direction and their normal directions are inconsistent, the light can be directed toward at least one first light-transmitting unit surface 311 when passing through the second light-transmitting unit surface 321 and emitted from the second light-transmitting unit surface 321, thereby dividing the light into multiple beams and emitting them in different directions from the first light-transmitting surface 31, which can enhance the bright texture of the light and make the car lights more luxurious.
[0046] Specifically, if Figure 2As shown, the first light-transmitting unit surface 311 can be set to a triangular surface or a polygonal surface such as a quadrilateral surface or a pentagonal surface, and the specific shape of the first light-transmitting unit surface 311 is not limited. The side length of the first light-transmitting unit surface 311 in the front-to-back projection direction is greater than or equal to 3 mm and less than or equal to 30 mm (preferably, the side length of most of the first light-transmitting unit surfaces 311 in the front-to-back projection direction is greater than or equal to 15 mm and less than or equal to 30 mm), so as to facilitate the cutting of the first light-transmitting unit surface 311. At the same time, due to the partial overlap of the first light-transmitting unit surface 311 and the second light-transmitting unit surface 321, a brilliant effect can still be achieved, and the first light-transmitting unit surface 311 is a plane or an approximately plane. Specifically, taking a horizontally arranged headlight as an example, part of the headlight faces forward, and the other part faces the side of the vehicle body, and there is an arc-shaped transition portion between the two portions. The first light-transmitting unit surface 311 in the portions of the headlight facing forward and facing the side of the vehicle body can preferably be set as a plane, and the first light-transmitting unit surface 311 in the arc-shaped transition portion of the headlight can preferably be set as an approximate plane, that is, the first light-transmitting unit surface 311 is set to be slightly convex in the direction away from the vehicle to facilitate the arc-shaped transition of the optical element 3, and the curvature radius of the first light-transmitting unit surface 311 can be set to be consistent with the curvature radius of the arc-shaped transition portion of the headlight.
[0047] It should be noted that the first light-transmitting unit surfaces 311 can be set to be mainly triangular surfaces, and the number of first light-transmitting unit surfaces 311 with triangular surfaces accounts for at least 98% of the total number of first light-transmitting unit surfaces 311; or, the projection area of the first light-transmitting unit surfaces 311 with triangular surfaces in the front-to-back direction accounts for at least 98% of the projection area of the first light-transmitting surface 31 in the front-to-back direction. On the premise of the same area, more first light-transmitting unit surfaces 311 with triangular surfaces are set on the first light-transmitting surface 31, so that the number of first light-transmitting unit surfaces 311 is greater, so that the light emitted by the light source 1 can be emitted in more directions under the action of the first light-transmitting surface 31, so as to enhance the bright effect of the light. In addition, the first light-transmitting unit surfaces 311 with polygonal surfaces can be set to be evenly distributed on the first light-transmitting surface 31, so that the brightness of the light is more uniform, and it is less likely to have local insufficient or excessive brightness.
[0048] Similar, such as Figure 1As shown, the second light-transmitting unit surface 321 can be set to a triangular surface or a polygonal surface such as a quadrilateral surface or a pentagonal surface, and the specific shape of the second light-transmitting unit surface 321 is not limited. The side length of the second light-transmitting unit surface 321 in the front-to-back projection direction is greater than or equal to 3 mm and less than or equal to 30 mm (preferably, the side length of most of the second light-transmitting unit surfaces 321 in the front-to-back projection direction is greater than or equal to 15 mm and less than or equal to 30 mm), so as to facilitate the cutting of the second light-transmitting unit surface 321. At the same time, due to the partial overlap of the first light-transmitting unit surface 311 and the second light-transmitting unit surface 321, a brilliant effect can still be achieved, and the second light-transmitting unit surface 321 is a plane or an approximately plane. Specifically, taking a horizontally arranged headlight as an example, part of the headlight faces forward, and the other part faces the side of the vehicle body, and there is an arc-shaped transition portion between the two portions. The second light-transmitting unit surface 321 in the portion of the headlight facing forward and facing the side of the vehicle body can preferably be set as a plane, and the second light-transmitting unit surface 321 in the arc-shaped transition portion of the headlight can preferably be set as an approximate plane, that is, the second light-transmitting unit surface 321 is set to be slightly convex in the direction away from the vehicle to facilitate the arc-shaped transition of the optical element 3, and the curvature radius of the second light-transmitting unit surface 321 can be set to be consistent with the curvature radius of the arc-shaped transition portion of the headlight.
[0049] It should be noted that the second light-transmitting unit surfaces 321 can be set to be mainly triangular surfaces, and the number of second light-transmitting unit surfaces 321 with triangular surfaces accounts for at least 98% of the total number of second light-transmitting unit surfaces 321; or, the projection area of the second light-transmitting unit surfaces 321 with triangular surfaces in the front-to-back direction accounts for at least 98% of the projection area of the second light-transmitting surface 32 in the front-to-back direction. On the premise of the same area, more second light-transmitting unit surfaces 321 with triangular surfaces are set on the second light-transmitting surface 32, so that the number of second light-transmitting unit surfaces 321 is greater, so that the light emitted by the light source 1 can be emitted in more directions under the action of the second light-transmitting surface 32, so as to enhance the bright effect of the light. In addition, the second light-transmitting unit surfaces 321 with polygonal surfaces can be set to be evenly distributed on the second light-transmitting surface 32, so that the brightness of the light is more uniform, and it is less likely to have local insufficient or excessive brightness.
[0050] Further, if Figure 4 As shown, the optical element 3 is a non-uniform wall thickness part, and its thickness can be set to be greater than or equal to 1.5 mm and less than or equal to 8 mm to ensure sufficient strength and good light transmittance. The cooperation between the first light-transmitting surface 31 and the second light-transmitting surface 32 enables the present application to achieve a brilliant effect on a thinner optical element, which can save costs.
[0051] In addition, at least part of the first light-transmitting unit surface 311 has at least two second light-transmitting unit surfaces 321 partially overlapping with it in the front-to-back projection direction. The second light-transmitting unit surfaces 321 partially overlapping with the first light-transmitting unit surface 311 in the front-to-back projection direction can form a light-reflecting unit, so that after light is emitted from the first light-transmitting unit surface 311 to the light-reflecting unit, it can be reflected by the light-reflecting unit and emitted to the first light-transmitting unit surface 311. Specifically, Figure 7 As shown, in the up-down direction, a first light-transmitting unit surface 311 is denoted as a light-transmitting surface A 311′, and the upper and lower first light-transmitting unit surfaces 311 adjacent to the light-transmitting surface A 311′ are denoted as light-transmitting surface B 311″ and light-transmitting surface C 311″′, respectively. The two second light-transmitting unit surfaces 321 corresponding to the light-transmitting surface A 311′ in the front-to-back direction are denoted as light-transmitting surface D 321′ and light-transmitting surface E 321″, respectively. The included angle α between the light-transmitting surface D 321′ and the light-transmitting surface B 311″ can be set to be greater than or equal to 70° and less than or equal to 90°, and the included angle α between the light-transmitting surface E 321″ and the light-transmitting surface C 311′ can be set to be greater than or equal to 70° and less than or equal to 90°, and it can be further preferred that the light-transmitting surface D 321′ and the light-transmitting surface A 311′ are denoted as light-transmitting surface E 321′ and the light-transmitting surface C 311′′ are denoted as light-transmitting surface D 321′ and light-transmitting surface A 311′. 1′ and the angle between the E light-transmitting surface 321″ and the A light-transmitting surface 311′ are set to be greater than or equal to 40° and less than or equal to 50°. The specific angle is determined according to the refractive index and reflectivity of the material used to make the optical element 3, so that when part of the sunlight enters from the A light-transmitting surface 311′ and is emitted toward the D light-transmitting surface 321′, it can be totally reflected on the D light-transmitting surface 321′ and emitted toward the E light-transmitting surface 321″, and then be totally reflected on the E light-transmitting surface 321″ to be emitted toward the A light-transmitting surface 311′ and emitted from the A light-transmitting surface 311′, so that the car lamp can achieve both active bright light effects when the light source 1 is lit, and passive bright light effects under external light irradiation, so that the car lamp has all-weather bright light effects and is more luxurious.
[0052] Furthermore, the second aspect of the present invention provides an optical system, comprising an optical element 3, a light source 1 and a reflector 2, wherein the optical element 3 comprises a first light-transmitting surface 31 and a second light-transmitting surface 32 arranged in sequence along the front-to-back direction, and at least one of the first light-transmitting surface 31 and the second light-transmitting surface 32 is provided with a plurality of light-transmitting unit surfaces, the light source 1 is used to emit light toward the reflector 2, and a plurality of reflection unit surfaces 21 are provided on the reflection surface of the reflector 2 for reflecting light to the optical element 3, and the normals of adjacent reflection unit surfaces 21 are inconsistent; in the front-to-back direction, the reflection unit surface 21 partially overlaps with the light-transmitting unit surface of the corresponding area, and is inconsistent with the normal of the light-transmitting unit surface of the corresponding area.
[0053] Based on the above design, the light emitted by the light source 1 will first be emitted toward the reflector 2, and then reflected toward the optical element 3 by the reflector 2. Since there are multiple reflective unit surfaces 21 on the reflector 2, and the normals of each reflective unit surface 21 are inconsistent, the light will be emitted toward the optical element 3 at various angles after being reflected by the reflector 2. Since the optical element 3 includes a first light-transmitting surface 31 and a second light-transmitting surface 32 arranged in sequence along the front-to-back direction, and at least one of the first light-transmitting surface 31 and the second light-transmitting surface 32 is provided with a plurality of light-transmitting unit surfaces, the light will eventually be emitted from the first light-transmitting surface 31 in different directions, so that when observing the car lights, light can be seen being emitted from different observation angles, so as to form a dazzling light effect like the texture of a crystal gem, thereby enhancing the luxury of the car lights.
[0054] Furthermore, the reflector 2 can be specifically made of plastic (PC or PMMA), and aluminum or silver can be plated on its surface as a reflecting surface, and a number of first light-transmitting unit surfaces 311 are provided on the first light-transmitting surface 31, and the normals of adjacent first light-transmitting unit surfaces 311 are inconsistent; a number of second light-transmitting unit surfaces 321 are provided on the second light-transmitting surface 32, and the normals of adjacent second light-transmitting unit surfaces 321 are inconsistent; in the front-to-back direction, the first light-transmitting unit surface 311 partially overlaps with the second light-transmitting unit surface 321 of the corresponding area, and the normals of the two are inconsistent, and the reflecting unit surface 21 partially overlaps with the first light-transmitting unit surface 311 and the second light-transmitting unit surface 321 of the corresponding area, and is inconsistent with the normals of the first light-transmitting unit surface 311 and the second light-transmitting unit surface 321 of the corresponding area.
[0055] Based on the above design, the light emitted by the light source 1 will first be emitted toward the reflector 2, and then reflected by the reflector 2 toward the second light-transmitting surface 32 of the optical element 3. Since there are multiple reflective unit surfaces 21 on the reflector 2, and the normals of each reflective unit surface 21 are inconsistent, the light will be emitted toward the second light-transmitting surface 32 at various angles after being reflected by the reflector 2; there are also multiple second light-transmitting unit surfaces 321 with different normals on the second light-transmitting surface 32, so after passing through the second light-transmitting unit surface 321, the light will be emitted toward the first light-transmitting surface 31 in various directions; there are multiple first light-transmitting unit surfaces 311 with different normals on the first light-transmitting surface 31, so the light will eventually be emitted from each first light-transmitting unit surface 311, so that when observing the car lights, light can be seen being emitted from different observation angles, so as to form a dazzling light effect like the texture of a crystal gem, thereby enhancing the luxury of the car lights.
[0056] like Figure 3As shown, the reflective unit surface 21 can be configured as a triangular surface or a polygonal surface such as a quadrilateral or pentagonal surface. The specific shape of the reflective unit surface 21 is not limited. The minimum side of the reflective unit surface 21 in the front-to-back projection direction is greater than 1 / 2 of the minimum side length of the corresponding first light-transmitting unit surface 311 and the second light-transmitting unit surface 321, so as to ensure the bright quality of the light while preventing excessive fragmentation. The reflective unit surface 21 is flat or approximately flat. Specifically, taking a horizontally arranged vehicle lamp as an example, where one portion of the lamp faces forward and another portion faces the side of the vehicle body, with a curved transition portion between the two portions, the reflective unit surface 21 in the portions of the lamp facing forward and facing the side of the vehicle body can preferably be flat, while the reflective unit surface 21 in the curved transition portion of the lamp can preferably be approximately flat, that is, the reflective unit surface 21 is configured to be slightly convex away from the vehicle to facilitate the curved transition of the reflector 2. The curvature radius of the reflective unit surface 21 can be configured to be consistent with the curvature radius of the curved transition portion of the lamp.
[0057] It should be noted that the reflecting unit surfaces 21 can be set to be mainly triangular surfaces, and the number of reflecting unit surfaces 21 with triangular surfaces accounts for at least 98% of the total number of reflecting unit surfaces 21; or, the projection area of the reflecting unit surfaces 21 with triangular surfaces in the front-to-back direction accounts for at least 98% of the projection area of the reflecting surface in the front-to-back direction. Under the premise of equal area, setting more reflecting unit surfaces 21 with triangular surfaces on the reflecting surface can increase the number of reflecting unit surfaces 21, so that the light emitted by the light source 1 can be emitted in more directions under the action of the reflecting surface, so as to enhance the bright effect of the light. In addition, the reflecting unit surfaces 21 with polygonal surfaces can be set to be evenly distributed on the reflecting surface, so that the brightness of the light is more uniform, and it is less likely to have local insufficient or excessive brightness.
[0058] In addition, if Figure 3 As shown, several rows of transversely arranged reflective unit surfaces 21 are formed on the reflective surface of the reflector 2, and the reflective unit surfaces 21 of two adjacent rows can form a step structure. The edges of the step structure protruding toward the optical element 3 can be formed with grooves 22 recessed away from the optical element 3 to weaken the step structure, avoid seeing obvious reflective boundaries through the optical element, and optimize the lighting effect.
[0059] It is understood that, although the specific shapes of the first light-transmitting unit surface 311, the second light-transmitting unit surface 321, and the reflective unit surface 21 are not specifically limited, a horizontal reference plane can be set at the height of the headlight, and a vertical reference plane can be set in the middle of the headlight, and the vertical reference plane is parallel to the front-to-back direction. Then, the normal direction of the first light-transmitting unit surface 311, the second light-transmitting unit surface 321, and the reflective unit surface 21 can be set to an angle of -60° with the front-to-back direction on the horizontal reference plane (i.e., a deviation of -60°). The angle between the first light-transmitting unit surface 311, the second light-transmitting unit surface 321 and the reflecting unit surface 21 and the front-rear direction on the vertical reference plane is -20° (i.e. 20° downward) to 70° (i.e. 80° upward), so that people within a range of 120° in the left and right directions in front of the vehicle can observe the brilliant light effect of the headlights.
[0060] Furthermore, the third aspect of the present invention provides a vehicle, which includes the optical system in the above technical solution and therefore also has all the technical effects of the above optical system.
[0061] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.
[0062] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not further describe various possible combinations.
[0063] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.
Claims
1. An optical element, characterized by, The optical element (3) comprises a first light-transmitting surface (31) and a second light-transmitting surface (32) arranged in sequence in the front-rear direction, the first light-transmitting surface (31) is provided with a plurality of first light-transmitting unit surfaces (311), the normals of adjacent first light-transmitting unit surfaces (311) are inconsistent; the second light-transmitting surface (32) is provided with a plurality of second light-transmitting unit surfaces (321), the normals of adjacent second light-transmitting unit surfaces (321) are inconsistent. In the front-rear direction, the first light-transmitting unit surface (311) partially overlaps the corresponding area of the second light-transmitting unit surface (321), and the normals of the two are inconsistent.
2. The optical element according to claim 1, characterized in that The side length of the first light-transmitting unit surface (311) is greater than or equal to 3mm and less than or equal to 30mm, and the first light-transmitting unit surface (311) is a plane or an approximately plane.
3. The optical element according to claim 1, characterized by Part of the first light-transmitting unit surface (311) is a polygonal surface, and part of the first light-transmitting unit surface (311) is a triangular surface. The number of the first light-transmitting unit surface (311) in the form of a triangular surface accounts for at least 98% of the total number of the first light-transmitting unit surface (311); or, The projection area of the first light-transmitting unit surface (311) in the form of a triangular surface in the front-rear direction accounts for at least 98% of the projection area of the first light-transmitting surface (31) in the front-rear direction.
4. The optical element according to claim 1, characterized by The side length of the second light-transmitting unit surface (321) is greater than or equal to 3mm and less than or equal to 30mm; and the second light-transmitting unit surface (321) is a plane or an approximately plane.
5. The optical element according to claim 1, characterized by Part of the second light-transmitting unit surface (321) is a polygonal surface, and part of the second light-transmitting unit surface (321) is a triangular surface. The number of the second light-transmitting unit surface (321) in the form of a triangular surface accounts for at least 98% of the total number thereof; or, The projection area of the second light-transmitting unit surface (321) in the form of a triangular surface in the front-rear direction accounts for at least 95% of the projection area of the second light-transmitting surface (32) in the front-rear direction.
6. The optical element according to any one of claims 1 to 5, characterized in that The thickness of the optical element (3) is greater than or equal to 1.5mm and less than or equal to 8mm.
7. The optical element according to any one of claims 1 to 5, characterized in that The optical element (3) is a plastic molded part.
8. The optical element according to any one of claims 1 to 3, characterized in that, At least part of the first light-transmitting unit surface (311) has at least two second light-transmitting unit surfaces (321) partially overlapping it in the front-rear projection direction to form a light returning unit, so that after being reflected from one of the second light-transmitting unit surfaces (321) towards the first light-transmitting unit surface (311), it is reflected from another second light-transmitting unit surface (321) towards the first light-transmitting unit surface (311).
9. An optical system characterized by comprising: The optical element (3) comprises a first light-transmitting surface (31) and a second light-transmitting surface (32) arranged in sequence along the front-rear direction, at least one of the first light-transmitting surface (31) and the second light-transmitting surface (32) is provided with a plurality of light-transmitting unit surfaces, the light source (1) is configured to emit light to the reflector (2), the reflecting surface of the reflector (2) is provided with a plurality of reflecting unit surfaces (21) for reflecting light to the optical element (3), and the normal directions of adjacent reflecting unit surfaces (21) are inconsistent. In the front-rear direction, the reflecting unit surface (21) partially overlaps the light-transmitting unit surface of the corresponding area, and the normal directions of the reflecting unit surface (21) and the light-transmitting unit surface of the corresponding area are inconsistent.
10. The optical system of claim 9, wherein, The first light-transmitting surface (31) is provided with a plurality of first light-transmitting unit surfaces (311), and the normal directions of adjacent first light-transmitting unit surfaces (311) are inconsistent; the second light-transmitting surface (32) is provided with a plurality of second light-transmitting unit surfaces (321), and the normal directions of adjacent second light-transmitting unit surfaces (321) are inconsistent. In the front-rear direction, the first light-transmitting unit surface (311) partially overlaps the second light-transmitting unit surface (321) of the corresponding area, and the normal directions of the first light-transmitting unit surface (311) and the second light-transmitting unit surface (321) are inconsistent, the reflecting unit surface (21) partially overlaps the first light-transmitting unit surface (311) and the second light-transmitting unit surfaces (321) of the corresponding area, and the normal directions of the reflecting unit surface (21) and the first light-transmitting unit surface (311) and the second light-transmitting unit (321) of the corresponding area are inconsistent.
11. The optical system of claim 10, wherein, The minimum side of the reflecting unit surface (21) is greater than 1 / 2 of the minimum side of the first light-transmitting unit surface (311) and the second light-transmitting surface (321) corresponding thereto, and the second light-transmitting surface (321) is a plane or an approximately plane.
12. The optical system of claim 11, wherein, The reflecting unit surface (21) is a polygonal surface, part of the reflecting unit surfaces (21) comprise triangular surfaces, and the number of the triangular reflecting unit surfaces (21) accounts for at least 98% of the total number of the reflecting unit surfaces (21); or, The projection area of the triangular reflecting unit surface (21) in the front-rear direction accounts for at least 98% of the projection area of the reflector (2) in the front-rear direction.
13. The optical system of claim 9, wherein, The reflecting surface of the reflector (2) is formed with a plurality of rows of reflecting unit surfaces (21), and adjacent two rows of reflecting unit surfaces (21) can form a stepped structure, and the groove (22) recessed away from the optical element (3) is formed on the edge of the stepped structure protruding towards the optical element (3).
14. A vehicle characterized by comprising: Comprise: The optical element of any one of claims 1 to 8; Or The optical system of any one of claims 9 to 13.