A graded optical thick-walled structure, vehicle lamp and vehicle
By designing an obstacle avoidance groove at the rear end of the optical thick-walled component and connecting it with an optical diffuser, the interference problem caused by the limited X-axis depth of the through-lamp was solved, achieving transparency and uniformity of the optical thick-walled component and improving the user experience.
Patent Information
- Application Number
- CN202310456912.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2043-04-25
AI Technical Summary
Due to the limited range of the movement space envelope of the hood lock, the X-direction depth of the through light is limited. The use of a pure thick-walled structure leads to interference with the hood lock envelope. In addition, the light uniformity of the LED light source is not good, which can easily cause uneven local brightness and affect the safe driving of the vehicle.
The design features a gradient optical thick-walled structure. An obstacle groove is opened at the rear end of the optical thick-walled component and connected to an optical diffuser. The depth of the obstacle groove gradually increases, and the thickness of the optical diffuser gradually increases, in order to avoid the hood lock and improve the uniformity of light.
It achieves transparency and uniformity of optical thick-walled components, eliminates graininess during light emission, improves user experience, and solves the positional interference problem between optical thick-walled components and the housing lock.
Smart Images
Figure CN116447537B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive lighting technology, and in particular to a gradient optical thick-walled structure, a headlight, and a vehicle. Background Technology
[0002] With the rapid development of society and the economy, people's production and living standards are constantly improving, and vehicles have become an indispensable means of transportation in people's lives and work. During safe driving, vehicle lights play a crucial role. They serve two purposes: illumination, increasing the driver's visibility, such as lighting the road ahead at night; and warning, such as alerting other vehicles to the need to turn or the presence of oncoming vehicles when turning or driving in fog.
[0003] Currently, most vehicle lighting devices use LED light sources, which have fast response, low energy consumption, and stable color. However, the uniformity of light from LED light sources is not very good, which can easily cause problems such as high brightness in some areas and low brightness in others. This may affect the vision of people in oncoming vehicles or people in vehicles behind, and may also affect the visibility of people inside the vehicle itself, thus affecting the safe driving of the vehicle.
[0004] In related technologies, to prevent localized light spots, thick-walled components are generally placed in the light-emitting direction of the light source. These thick-walled components can reduce localized light spots to a certain extent. In particular, through-type lights and car logo lights have become new design hotspots. The widespread adoption of through-type lights and the pursuit of a refined look have led to through-type lights using thick-walled components becoming mainstream. However, due to the limited space envelope of the hood lock, the X-axis depth of through-type lights is limited. Using a purely thick-walled structure to eliminate particle effects can lead to interference problems with the hood lock envelope. Summary of the Invention
[0005] This application provides a gradient optical thick-walled structure, a vehicle lamp, and a vehicle to solve the problem in related technologies where the limited movement space envelope of the hood lock results in a limited X-direction depth for the penetrating lamp, and the use of a pure thick-walled structure to eliminate particle effects leads to interference with the hood lock envelope.
[0006] The first aspect of this application provides a gradient optical thick-walled structure, including:
[0007] An optical thick-walled component, wherein the optical thick-walled component is a long strip structure, and a clearance groove is provided at the rear end of the optical thick-walled component, the depth of which gradually increases from both ends to the middle of the optical thick-walled component;
[0008] An optical diffuser is attached to the wall of a clearance groove, and the thickness of the optical diffuser gradually increases from both ends to the middle of the optical thick-walled member.
[0009] In some embodiments: the front end of the optical thick-walled component is the light-emitting surface, and the rear end of the optical diffuser is the light-incident surface;
[0010] For every 10mm increase in length from both ends of the optical thick-walled component towards the middle, the distance between the light-emitting surface and the light-receiving surface decreases by 1mm-3mm.
[0011] In some embodiments: for every 1mm-3mm decrease in the thickness of the optical thick-walled component from both ends toward the middle along its length, the thickness of the optical diffuser increases by 0.5mm-1.5mm.
[0012] In some embodiments: when the thickness of the optical thick-walled component is less than 70mm, for every 10mm increase in the length direction from both ends of the optical thick-walled component towards the middle, the distance between the light-emitting surface and the light-incident surface decreases by 1mm.
[0013] In some embodiments, the clearance groove is a "V" shaped groove or a "C" shaped groove.
[0014] In some embodiments, the optical diffuser is a polycarbonate molded part mixed with an optical diffuser or a polymethyl methacrylate molded part mixed with an optical diffuser, wherein the optical diffuser is a light-transmitting optical diffuser.
[0015] In some embodiments, the optical thick-walled component is a polycarbonate molded component or a polymethyl methacrylate molded component, and the bottom surface of the optical thick-walled component is plated with an aluminum layer.
[0016] In some embodiments: the optical thick-walled component includes an intermediate optical thick-walled component located in the middle, and end optical thick-walled components located at both ends of the intermediate optical thick-walled component, the clearance groove is located on the intermediate optical thick-walled component, and the intermediate optical thick-walled component and the end optical thick-walled component are separate structures.
[0017] A second aspect of this application provides a vehicle lamp that uses the gradient optical thick-walled structure described in any of the above embodiments.
[0018] A third aspect of this application provides a vehicle that uses the aforementioned vehicle lights.
[0019] The beneficial effects of the technical solution provided in this application include:
[0020] This application provides a gradient optical thick-walled structure, a vehicle lamp, and a vehicle. The gradient optical thick-walled structure of this application is provided with an optical thick-walled component, which is a long strip structure. The rear end of the optical thick-walled component has a clearance groove, the depth of which gradually increases from both ends to the middle of the optical thick-walled component. An optical diffuser is connected to the groove wall of the clearance groove, and the thickness of the optical diffuser gradually increases from both ends to the middle of the optical thick-walled component.
[0021] Therefore, the gradient optical thick-walled structure of this application has a clearance groove at the rear end of the optical thick-walled component. The depth of the clearance groove gradually increases from both ends to the middle of the optical thick-walled component, and this clearance groove is used to avoid the cover lock. Furthermore, an optical diffuser is connected to the groove wall. The thickness of the optical diffuser gradually increases from both ends to the middle of the optical thick-walled component. The optical diffuser ensures that the optical thick-walled component meets the requirements of transparency and uniformity in thick-walled operation, eliminating the graininess during light emission and improving the user experience. This application achieves both transparency when the optical thick-walled component is lit and addresses the spatial limitations imposed on the size of the optical thick-walled component. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a top view of the structure of an embodiment of this application.
[0024] Figure label:
[0025] 1. Optical thick-walled component; 2. Optical diffuser; 3. Housing lock; 11. Intermediate optical thick-walled component; 12. End optical thick-walled component; 11a. Light-emitting surface; 11b. Light-receiving surface. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, 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.
[0027] This application provides a gradient optical thick-walled structure, a vehicle lamp, and a vehicle, which can solve the problem in related technologies where the limited movement space envelope of the hood lock results in a limited X-direction depth for the penetrating lamp, and the use of a pure thick-walled structure to eliminate particle effects leads to interference with the hood lock envelope.
[0028] See Figure 1 As shown, the first aspect of this application provides a gradient optical thick-walled structure, including:
[0029] The optical thick-walled component 1 is an elongated strip structure. Since a depth of 70mm in the X-axis direction is required to eliminate graininess, the optical thick-walled component 1 occupies a significant amount of space in this direction. To address the positional interference between the optical thick-walled component 1 and the hood lock 3, this application provides a clearance groove at the rear end of the optical thick-walled component 1 to avoid the hood lock 3. This clearance groove resolves the positional interference between the optical thick-walled component 1 and the hood lock 3 in the X-axis direction, and the depth of the clearance groove gradually increases from both ends to the middle of the optical thick-walled component 1.
[0030] An optical diffuser 2 is attached to the wall of the clearance groove, and the thickness of the optical diffuser 2 gradually increases from both ends to the middle of the optical thick-walled component 1. Because the rear end of the optical thick-walled component 1 has a clearance groove for avoiding the machine cover lock 3, this clearance groove reduces the thickness of the optical thick-walled component 1, resulting in a heavier grainy appearance of the light effect in the area of the clearance groove. Therefore, this application attaches an optical diffuser 2 to the wall of the clearance groove of the optical thick-walled component 1. The thickness of the optical diffuser 2 gradually increases from both ends to the middle of the optical thick-walled component 1. The optical diffuser 2 enables the optical thick-walled component 1 to meet the requirements of thick-wall transparency and uniformity, eliminating the grainy appearance during light emission and improving the user experience.
[0031] The gradient optical thick-walled structure of this application embodiment has a clearance groove at the rear end of the optical thick-walled component 1. The depth of the clearance groove gradually increases from both ends to the middle of the optical thick-walled component 1. This clearance groove is used to avoid the cover lock 3. Furthermore, an optical diffuser 2 is connected to the groove wall. The thickness of the optical diffuser 2 gradually increases from both ends to the middle of the optical thick-walled component 1. The optical diffuser 2 enables the optical thick-walled component 1 to meet the requirements of thick-walled transparency and uniformity, eliminating the graininess when emitting light and improving the user experience. This application can achieve the transparency effect of the optical thick-walled component 1 when it is lit, while also taking into account the limitation of the size of the optical thick-walled component 1 due to spatial arrangement.
[0032] See Figure 1As shown, this application embodiment provides a gradient optical thick-walled structure. The front end of the optical thick-walled component 1 is a light-emitting surface 11a, and the rear end of the optical diffuser 2 is a light-incident surface 11b. Light emitted from the light source enters the optical thick-walled component 1 and the optical diffuser 2 through the light-incident surface 11b and exits from the light-emitting surface 11a. For every 10mm increase in length from both ends to the middle of the optical thick-walled component 1, the distance between the light-emitting surface 11a and the light-incident surface 11b decreases by 1mm-3mm. Specifically, when the thickness of the optical thick-walled component 1 is less than 70mm, for every 10mm increase in length from both ends to the middle of the optical thick-walled component 1, the distance between the light-emitting surface 11a and the light-incident surface 11b decreases by 1mm, and for every 1mm-3mm decrease in thickness from both ends to the middle of the optical thick-walled component 1, the thickness of the optical diffuser 2 increases by 0.5mm-1.5mm.
[0033] For example, the maximum depth of the optical thick-walled component 1 for the headlights on both sides of the vehicle starts at 100mm. The specific depth is adjusted according to the internal space size of the lamp. Based on the width of the vehicle, the maximum limit width of the optical thick-walled component 1 in the Y direction is 1600mm. The design follows the principle of reducing the thickness by 1mm in the X direction for every 10mm in the Y direction. At point Y0, the thickness of the optical thick-walled component 1 can be reduced to 20mm. At this point, the light effect achieved by the thickness of the optical thick-walled component 1 has a relatively heavy grainy feel.
[0034] Therefore, to address this issue, this application will begin by reducing the thickness of the transparent region of the optical thick-walled component 1 to less than 70mm. For every 1mm-3mm reduction in the thickness of the optical thick-walled component 1, the thickness of the optical diffuser 2 will be increased by 0.5-1.5mm. For example, when the depth of the transparent portion of the optical thick-walled component 1 is reduced to 70mm, the design follows a 1mm reduction in the X direction for every 10mm in the Y direction. The next step is to reduce the depth of the gradient optical thick-walled structure to 69mm. At this point, the thickness of the optical diffuser 2 will be increased by 0.5mm, resulting in a gradient optical thick-walled structure depth of 69mm (where 68.5mm is the thickness of the optical thick-walled component 1 and 0.5mm is the thickness of the optical diffuser 2). The next step is to reduce the depth of the gradient optical thick-walled structure to 68mm, and the thickness of the optical diffuser 2 will be increased by another 0.5mm, resulting in a gradient optical thick-walled structure depth of 68mm (where 67mm is the thickness of the optical thick-walled component 1 and 1mm is the thickness of the optical diffuser 2), and so on.
[0035] See Figure 1As shown, this application embodiment provides a gradient optical thick-walled structure, where the clearance groove of the gradient optical thick-walled structure is a "V"-shaped groove or a "C"-shaped groove. The depth of the clearance groove gradually increases to prevent abrupt changes in light effect caused by sudden changes in the depth of the clearance groove. The optical diffuser 2 is a polycarbonate molded part mixed with an optical diffusing agent or a polymethyl methacrylate molded part mixed with an optical diffusing agent. The optical diffusing agent is a light-transmitting optical diffusing agent, such as acrylic acid or styrene. Using a light-transmitting optical diffusing agent can not only achieve the purpose of diffusing light, making the light dispersed and preventing problems such as excessively high or low local brightness, but also improve the utilization efficiency of light energy. Most of the light emitted by the point light source can pass through the optical diffuser 2. The optical diffuser 2 utilizes the difference between the refractive index of the material itself and the refractive index of the substrate. After multiple refractions, the light passing through the substrate becomes bright and soft, thereby converting the light emitted by the point light source into the light emitted by the surface light source. The light is more uniform and has less impact on the light transmittance of the material.
[0036] The optical thick-walled component 1 is a polycarbonate molded component or a polymethyl methacrylate molded component. An aluminum layer is plated on the bottom surface of the optical thick-walled component 1. This aluminum layer reflects the light emanating from the bottom of the optical thick-walled component 1, so that the light is emitted from the light-emitting surface 11a of the optical thick-walled component 1. The optical thick-walled component 1 of this application includes an intermediate optical thick-walled component 11 located in the middle, and end optical thick-walled components 12 located at both ends of the intermediate optical thick-walled component 11. A clearance groove is located on the intermediate optical thick-walled component 11. The intermediate optical thick-walled component 11 and the end optical thick-walled components 12 are separate structures, which facilitates the processing and molding of the optical thick-walled component 1.
[0037] See Figure 1 As shown, a second aspect of this application provides a vehicle lamp that uses the gradient optical thick-walled structure, light source, and lampshade described in any of the above embodiments. The gradient optical thick-walled structure includes:
[0038] The optical thick-walled component 1 is an elongated strip structure. Since a depth of 70mm in the X-axis direction is required to eliminate graininess, the optical thick-walled component 1 occupies a significant amount of space in this direction. To address the positional interference between the optical thick-walled component 1 and the hood lock 3, this application provides a clearance groove at the rear end of the optical thick-walled component 1 to avoid the hood lock 3. This clearance groove resolves the positional interference between the optical thick-walled component 1 and the hood lock 3 in the X-axis direction, and the depth of the clearance groove gradually increases from both ends to the middle of the optical thick-walled component 1.
[0039] An optical diffuser 2 is attached to the wall of the clearance groove, and the thickness of the optical diffuser 2 gradually increases from both ends to the middle of the optical thick-walled component 1. Because the rear end of the optical thick-walled component 1 has a clearance groove for avoiding the machine cover lock 3, this clearance groove reduces the thickness of the optical thick-walled component 1, resulting in a heavier grainy appearance of the light effect in the area of the clearance groove. Therefore, this application attaches an optical diffuser 2 to the wall of the clearance groove of the optical thick-walled component 1. The thickness of the optical diffuser 2 gradually increases from both ends to the middle of the optical thick-walled component 1. The optical diffuser 2 enables the optical thick-walled component 1 to meet the requirements of thick-wall transparency and uniformity, eliminating the grainy appearance during light emission and improving the user experience.
[0040] The gradient optical thick-walled structure of this application embodiment has a clearance groove at the rear end of the optical thick-walled component 1. The depth of the clearance groove gradually increases from both ends to the middle of the optical thick-walled component 1. This clearance groove is used to avoid the cover lock 3. Furthermore, an optical diffuser 2 is connected to the groove wall. The thickness of the optical diffuser 2 gradually increases from both ends to the middle of the optical thick-walled component 1. The optical diffuser 2 enables the optical thick-walled component 1 to meet the requirements of thick-walled transparency and uniformity, eliminating the graininess when emitting light and improving the user experience. This application can achieve the transparency effect of the optical thick-walled component 1 when it is lit, while also taking into account the limitation of the size of the optical thick-walled component 1 due to spatial arrangement.
[0041] See Figure 1 As shown, this application embodiment provides a vehicle lamp. The front end of the optical thick-walled component 1 is a light-emitting surface 11a, and the rear end of the optical diffuser 2 is a light-incident surface 11b. The light emitted by the light source enters the optical thick-walled component 1 and the optical diffuser 2 through the light-incident surface 11b and then exits from the light-emitting surface 11a. For every 10mm increase in length from both ends to the middle of the optical thick-walled component 1, the distance between the light-emitting surface 11a and the light-incident surface 11b decreases by 1mm-3mm. Specifically, when the thickness of the optical thick-walled component 1 is less than 70mm, for every 10mm increase in length from both ends to the middle of the optical thick-walled component 1, the distance between the light-emitting surface 11a and the light-incident surface 11b decreases by 1mm, and for every 1mm-3mm decrease in thickness from both ends to the middle of the optical thick-walled component 1, the thickness of the optical diffuser 2 increases by 0.5mm-1.5mm.
[0042] For example, the maximum depth of the optical thick-walled component 1 for the headlights on both sides of the vehicle starts at 100mm. The specific depth is adjusted according to the internal space size of the lamp. Based on the width of the vehicle, the maximum limit width of the optical thick-walled component 1 in the Y direction is 1600mm. The design follows the principle of reducing the thickness by 1mm in the X direction for every 10mm in the Y direction. At point Y0, the thickness of the optical thick-walled component 1 can be reduced to 20mm. At this point, the light effect achieved by the thickness of the optical thick-walled component 1 has a relatively heavy grainy feel.
[0043] Therefore, to address this issue, this application will begin by reducing the thickness of the transparent region of the optical thick-walled component 1 to less than 70mm. For every 1mm-3mm reduction in the thickness of the optical thick-walled component 1, the thickness of the optical diffuser 2 will be increased by 0.5-1.5mm. For example, when the depth of the transparent portion of the optical thick-walled component 1 is reduced to 70mm, the design follows a 1mm reduction in the X direction for every 10mm in the Y direction. The next step is to reduce the depth of the gradient optical thick-walled structure to 69mm. At this point, the thickness of the optical diffuser 2 will be increased by 0.5mm, resulting in a gradient optical thick-walled structure depth of 69mm (where 68.5mm is the thickness of the optical thick-walled component 1 and 0.5mm is the thickness of the optical diffuser 2). The next step is to reduce the depth of the gradient optical thick-walled structure to 68mm, and the thickness of the optical diffuser 2 will be increased by another 0.5mm, resulting in a gradient optical thick-walled structure depth of 68mm (where 67mm is the thickness of the optical thick-walled component 1 and 1mm is the thickness of the optical diffuser 2), and so on.
[0044] See Figure 1 As shown, this application embodiment provides a vehicle lamp with a clearance groove that is either a "V" shaped groove or a "C" shaped groove. The depth of the clearance groove gradually increases to prevent abrupt changes in light effect caused by sudden changes in depth. The optical diffuser 2 is a polycarbonate molded part mixed with an optical diffusing agent or a polymethyl methacrylate molded part mixed with an optical diffusing agent. The optical diffusing agent is a light-transmitting optical diffusing agent, such as acrylic acid or styrene. Using a light-transmitting optical diffusing agent can achieve the purpose of diffusing light, dispersing the light and preventing problems such as excessively high or low local brightness, and can also improve the utilization efficiency of light energy. Most of the light emitted by the point light source can pass through the optical diffuser 2. The optical diffuser 2 utilizes the difference between the refractive index of the optical diffusing agent material and the refractive index of the substrate. After multiple refractions, the light passing through the substrate becomes bright and soft, thereby converting the light emitted by the point light source into the light emitted by the surface light source. The light is more uniform and has less impact on the light transmittance of the material.
[0045] The optical thick-walled component 1 is a polycarbonate molded component or a polymethyl methacrylate molded component. An aluminum layer is plated on the bottom surface of the optical thick-walled component 1. This aluminum layer reflects the light emanating from the bottom of the optical thick-walled component 1, so that the light is emitted from the light-emitting surface 11a of the optical thick-walled component 1. The optical thick-walled component 1 of this application includes an intermediate optical thick-walled component 11 located in the middle, and end optical thick-walled components 12 located at both ends of the intermediate optical thick-walled component 11. A clearance groove is located on the intermediate optical thick-walled component 11. The intermediate optical thick-walled component 11 and the end optical thick-walled components 12 are separate structures, which facilitates the processing and molding of the optical thick-walled component 1.
[0046] A third aspect of this application provides a vehicle that uses the aforementioned headlights, which extend across the front end of the vehicle.
[0047] Working principle
[0048] This application provides a gradient optical thick-walled structure, a vehicle lamp, and a vehicle. The gradient optical thick-walled structure of this application includes an optical thick-walled component 1, which is an elongated structure. The rear end of the optical thick-walled component 1 has a clearance groove, the depth of which gradually increases from both ends to the middle of the optical thick-walled component 1. An optical diffuser 2 is connected to the groove wall of the clearance groove, and the thickness of the optical diffuser 2 gradually increases from both ends to the middle of the optical thick-walled component 1.
[0049] Therefore, the gradient optical thick-walled structure of this application has a clearance groove at the rear end of the optical thick-walled component 1. The depth of the clearance groove gradually increases from both ends to the middle of the optical thick-walled component 1. This clearance groove is used to avoid the cover lock 3. Furthermore, an optical diffuser 2 is connected to the groove wall. The thickness of the optical diffuser 2 gradually increases from both ends to the middle of the optical thick-walled component 1. The optical diffuser 2 enables the optical thick-walled component 1 to meet the requirements of thick-walled transparency and uniformity, eliminating the graininess when emitting light and improving the user experience. This application can achieve the transparency effect of the optical thick-walled component 1 when it is lit, while also taking into account the limitation of the size of the optical thick-walled component 1 due to spatial arrangement.
[0050] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0051] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0052] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A gradient optical thick-walled structure, characterized in that, include: An optical thick-walled component (1) is a long strip structure. An obstacle groove is provided at the rear end of the optical thick-walled component (1). The depth of the obstacle groove gradually increases from both ends to the middle of the optical thick-walled component (1). An optical diffuser (2) is connected to the wall of the clearance groove, and the thickness of the optical diffuser (2) gradually increases from both ends to the middle of the optical thick-walled member (1). The front end of the optical thick-walled component (1) is the light-emitting surface (11a), and the rear end of the optical diffuser (2) is the light-incident surface (11b). The optical thick-walled component (1) includes an intermediate optical thick-walled component (11) located in the middle, and end optical thick-walled components (12) located at both ends of the intermediate optical thick-walled component (11). The clearance groove is located on the intermediate optical thick-walled component (11). The intermediate optical thick-walled component (11) and the end optical thick-walled component (12) are separate structures.
2. The graded optical thick-walled structure as described in claim 1, characterized in that: For every 10mm increase in length from both ends of the optical thick-walled component (1) towards the middle, the distance between the light-emitting surface (11a) and the light-incident surface (11b) decreases by 1mm-3mm.
3. The graded optical thick-walled structure as described in claim 2, characterized in that: For every 1mm-3mm decrease in thickness from both ends of the optical thick-walled component (1) towards the middle along its length, the thickness of the optical diffuser (2) increases by 0.5mm-1.5mm.
4. The graded optical thick-walled structure as described in claim 2, characterized in that: After the thickness of the optical thick-walled component (1) is less than 70 mm, for every 10 mm increase in the length direction from both ends of the optical thick-walled component (1) towards the middle, the distance between the light-emitting surface (11a) and the light-incident surface (11b) decreases by 1 mm.
5. The graded optical thick-walled structure as described in claim 1, characterized in that: The clearance groove is a "V" shaped groove or a "C" shaped groove.
6. The graded optical thick-walled structure as described in claim 1, characterized in that: The optical diffuser (2) is a polycarbonate molded part mixed with an optical diffuser or a polymethyl methacrylate molded part mixed with an optical diffuser, wherein the optical diffuser is a light-transmitting optical diffuser.
7. The graded optical thick-walled structure as described in claim 1, characterized in that: The optical thick-walled component (1) is a polycarbonate molded component or a polymethyl methacrylate molded component, and the bottom surface of the optical thick-walled component (1) is plated with an aluminum layer.
8. A vehicle light, characterized in that, The vehicle headlight uses the gradient optical thick-walled structure as described in any one of claims 1 to 7.
9. A vehicle, characterized in that, The vehicle uses the headlights as described in claim 8.
Citation Information
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