Windshield display system for two wheeled vehicle
The motorcycle windshield display system addresses issues of low light efficiency and driver dazzle by using a reflector and light-shielding design with specific materials and structures to guide light effectively towards the rider, ensuring safe and clear visibility.
Patent Information
- Application Number
- JP2024101717
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2026-01-14
AI Technical Summary
Existing motorcycle windshield display systems either require higher brightness for outdoor visibility but suffer from low light utilization efficiency due to reflections in various directions, or they efficiently emit light from the periphery but can dazzle the driver with unnecessary irradiation, hindering safe driving.
A motorcycle windshield display system with a light source, reflector, insertion portion, and light-shielding portion that guides and reflects light towards the rider while blocking unnecessary emissions, using materials like white or metallic resin for reduced glare and a two- or three-layer windshield structure for enhanced visibility and durability.
The system prevents driver dazzle by efficiently guiding light towards the rider while minimizing reflections, maintaining visibility and reducing glare, and enhancing the system's durability and marketability through improved materials and structures.
Smart Images

Figure 2026003711000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to an improved technology for a windshield display system for a motorcycle. [Background technology]
[0002] Among the devices mounted on motorcycles are devices that issue warnings based on information about the surroundings of the vehicle and information about the vehicle itself. Prior art for such devices includes the technologies disclosed in Patent Document 1 and Patent Document 2, for example.
[0003] The technology disclosed in Patent Document 1 is a vehicle instrument device that includes a light source and a control means in a case that turns on the light source or changes the color of the light source when issuing a warning. When the light source is turned on, light from the light source is guided through a light-guiding member and emitted toward a diffuse reflector that is provided in a vehicle windshield cowl (equivalent to a windshield) that covers the space above the vehicle instrument device and diffuses and reflects the light toward the driver. The light-guiding member is molded integrally with the transparent portion of the case.
[0004] The technology disclosed in Patent Document 2 is a lighting device for a motorcycle windshield, which has a light entrance section and a light exit section provided on the peripheral edge of the windshield of a motorcycle, a light source arranged corresponding to the light entrance section, and light emitted from this light source guided from the light entrance section to the windshield and emitted to the outside from the light exit section. [Prior art documents] [Patent documents]
[0005] [Patent Document 1] Patent No. 6273772 [Patent Document 2] Japanese Patent Publication No. 63-270296 Summary of the Invention [Problem to be solved by the invention]
[0006] However, the vehicle instrument device for motorcycles disclosed in Patent Document 1 is used outdoors, and higher brightness is required from the perspective of visibility for the driver.However, when light is reflected on the windshield, the light is reflected in various directions at the reflective part, resulting in low light utilization efficiency.
[0007] In contrast, the motorcycle windshield lighting device disclosed in Patent Document 2 has a light entrance section on the periphery of the windshield, and light from a light source is introduced into this light entrance section and emitted more efficiently from a light exit section on the periphery.However, since the light exit section is located around the top of the windshield, depending on the size of the windshield, unnecessary light may be irradiated on the driver, dazzling them and hindering safe driving.
[0008] The present invention has been made to solve the above problems, and an object of the present invention is to provide a windshield display system for motorcycles that does not dazzle the rider with light emission. [Means for solving the problem]
[0009] The motorcycle windshield display system in the first aspect includes a light source, a control means for turning on the light source or changing the lighting color of the light source when issuing a warning, a windshield for the windshield that guides light from the light source, a reflector that is installed on the surface of the windshield and reflects the light from the light source toward the rider, an insertion portion that is installed on the windshield and formed to surround the periphery of the reflector, and a shading portion that is inserted into the insertion portion.
[0010] In a second aspect of the motorcycle windshield display system that can be dependent on the first aspect, the insertion portion and the light-shielding portion have reflective surfaces that reflect the light from the light source toward the rider.
[0011] In a third aspect of the motorcycle windshield display system that can be dependent on the first or second aspect, the light blocking portion is made of a white or metallic material.
[0012] In a fourth aspect of the motorcycle windshield display system that can be dependent on the first aspect, the insertion portion and the light-shielding portion have reflective surfaces that reflect the light from the light source toward the side opposite the rider.
[0013] In a fifth aspect of the motorcycle windshield display system that can be dependent on the fourth aspect, the light blocking portion is made of a black material.
[0014] In a sixth aspect of the motorcycle windshield display system that can be dependent on any one of the first to fifth aspects, the windshield is made of two types of material: a colored member and a colorless transparent material; The colorless and transparent material is used for the windshield in the area surrounded by the insertion portion and the light-shielding portion.
[0015] In a seventh aspect of the motorcycle windshield display system, which can be dependent on the first to sixth aspects, the windshield in the area surrounded by the insertion portion and the light-shielding portion has a two-layer structure of light-transmitting polycarbonate resin and acrylic resin.
[0016] In an eighth aspect of the motorcycle windshield display system that can be dependent on the seventh aspect, the acrylic resin is disposed on the driver's side of the windshield, Between the acrylic resin and the polycarbonate resin, there is provided a light transmitting layer having a refractive index lower than that of the acrylic resin.
[0017] In a ninth aspect of the motorcycle windshield display system that may be dependent on the seventh aspect, the polycarbonate resin is disposed on the driver's side of the windshield.
[0018] In a tenth aspect of the motorcycle windshield display system that can be dependent on the seventh aspect, the windshield in the area surrounded by the insertion portion and the shading portion has a three-layer structure in which the acrylic resin is arranged on the front and back surfaces of the polycarbonate resin. [Effects of the Invention]
[0019] According to the present invention, it is possible to provide a windshield display system for a motorcycle that does not dazzle the rider with light emission. [Brief explanation of the drawings]
[0020] [Figure 1] 1 is a side view of a motorcycle equipped with a motorcycle windshield display system according to a first embodiment. [Figure 2] 2 is a view of the windshield and motorcycle windshield display system shown in FIG. 1 as seen from the rider's side. [Figure 3] FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 2. [Figure 4] FIG. 4 is an enlarged view of part 4 in FIG. 3. [Figure 5] 5 is a diagram showing a modified example of the insertion section, the light blocking section, and the reflecting surface shown in FIG. 4. [Figure 6] FIG. 10 is a cross-sectional view of the first shield portion and its surroundings of the motorcycle windshield display system according to the second embodiment. [Figure 7] FIG. 10 is a cross-sectional view of the first shield portion and its surroundings of the motorcycle windshield display system according to the third embodiment. [Figure 8] FIG. 8 is a first modified view of the first shield part and its surroundings shown in FIG. 7. [Figure 9] FIG. 8 is a second modified view of the first shield part and its surroundings shown in FIG. 7. [Figure 10] FIG. 8 is a third modified view of the first shield part and its surroundings shown in FIG. 7. DETAILED DESCRIPTION OF THE INVENTION
[0021] An embodiment of the present invention will be described below with reference to the accompanying drawings. In the description, left and right refer to the left and right relative to the rider of the motorcycle, and front and rear refer to the front and rear relative to the direction of travel of the motorcycle. In the drawings, Fr indicates the front, Rr indicates the rear, Le indicates the left from the rider's perspective, Ri indicates the right from the rider's perspective, Up indicates the top, and Dn indicates the bottom.
[0022] Example 1 A motorcycle windshield display system 20 according to a first embodiment will be described with reference to FIGS.
[0023] As shown in FIGS. 1 and 2, a motorcycle windshield display system 20 according to the first embodiment is mounted on a motorcycle 10 (motorcycle 10).
[0024] 1 and 3, when the motorcycle windshield display system 20 issues a warning to the driver Dr, the control means 22 causes the light source 21 to light up in a predetermined color or to flash, thereby guiding light DL from the light source 21 toward the windshield 11 and emitting it from the windshield 11 to the driver's side Rr. This allows the driver Dr riding the motorcycle 10 to easily understand the warning from the control means 22.
[0025] Hereinafter, the motorcycle windshield display system 20 may be abbreviated as the "display system 20." Furthermore, the light DL from the light source 21 may be referred to as the "display light DL."
[0026] Examples of warning information for the driver Dr include information on the presence of an obstacle on the road (e.g., a vehicle ahead or a vehicle approaching from behind) provided by the external sensor 12. The warning information from this external sensor 12 is output to a vehicle ECU 13 (Electronic Control Unit) mounted on the motorcycle 10. The external sensor 12 detects the contents and positions of objects such as people, structures, and other vehicles present in the external environment around the motorcycle 10. The external sensor 12 is configured, for example, by a stereo camera that captures images of the scenery around the motorcycle 10, a distance measurement sensor such as LIDAR (Laser Imaging Detection And Ranging) that measures the distance from the motorcycle 10 to an object, and a sonar, ultrasonic sensor, or millimeter-wave radar that detects objects located around the motorcycle 10.
[0027] As shown in Figure 3, the display system 20 includes a light source 21, a control means 22 that turns on the light source 21 or changes the lighting color of the light source 21 when issuing a warning, a windshield 11 (windshield cowl 11) that guides the display light DL from the light source 21, a reflector 23 that is installed on the surface 11a (front surface 11a) of the windshield 11 and reflects the display light DL toward the driver's side Rr, an insertion portion 24 that is provided on the windshield 11 and formed to surround the periphery of the reflector 23, and a shading portion 25 that is inserted into the insertion portion 24.
[0028] The light source 21 is configured by, for example, an LED (Light Emitting Diode). This light source 21 may be configured to emit a single light tone (lighting color), or may be configured to emit multiple light tones (lighting colors) each different from the other, or may be configured to change the color tone by combining light sources of the three primary colors.
[0029] The control means 22 is made up of a microcomputer equipped with a CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory), etc., which are mounted on a circuit board. The control means 22 acquires various information about the motorcycle 10 from the vehicle ECU 13 of the motorcycle 10 equipped with the display system 20, and determines whether or not a warning is necessary based on the acquired information. If it determines that a warning is necessary, the control means 22 turns on (including blinking) the light source 21, changes the lighting color, or changes the lighting interval of the light source 21 according to the content of the warning.
[0030] Furthermore, the control means 22 controls the display of the TFT type liquid crystal panel 31 based on various information acquired from the vehicle ECU 13. The display on this liquid crystal panel 31 can be seen through a light-transmitting plate 32.
[0031] The display light DL from the light source 21 is guided to the windshield 11 by a light-transmitting light guide section 33. This light guide section 33 is made of, for example, an injection-molded product of transparent acrylic resin (PMMA), and is formed integrally with the light-transmitting plate 32 or is formed as a separate member.
[0032] The light source 21 and the control means 22 are housed in a waterproof and dustproof case 34. The case 34 is, for example, an injection-molded product made of black AES resin, and holds a light-transmitting plate 32 and a light-guiding section 33.
[0033] The windshield 11 is an injection-molded product made of, for example, optically transparent polycarbonate resin (PC), and is disposed forward Fr and above Up from the liquid crystal panel 31 to ensure forward visibility while controlling the wind blowing on the driver Dr (see FIG. 1). The windshield 11 has a light introducing portion 11b that introduces display light DL via a light guiding portion 33. The display light DL introduced from the light introducing portion 11b can pass through the interior of the windshield 11.
[0034] The reflecting portion 23 is made of, for example, a printed layer, and is partially installed on the surface 11a (front surface 11a) of the windshield 11, and reflects the display light DL introduced into the inside of the windshield 11 to the driver's side Rr.
[0035] 1 and 2, the reflecting portion 23 is disposed, for example, in a corner (for example, the lower left or lower right corner) of the windshield 11. The display light DL reflected by the reflecting portion 23 is emitted from the windshield 11 to the driver's side Rr. As a result, the driver Dr riding on the two-wheeled vehicle 10 can see the display light DL emitted from the windshield 11.
[0036] 2 and 4, the insertion portion 24 is provided in the windshield 11 and is arranged so as to surround the periphery of the reflecting portion 23 when viewed from the rear surface 11c of the windshield 11, that is, the driver Dr side (see FIG. 1). The insertion portion 24 is formed, for example, in the shape of a slit that opens into the rear surface 11c of the windshield 11.
[0037] The light-shielding portion 25 is a light-shielding member made of resin that is inserted into the insertion portion 24. As an example, the light-shielding portion 25 is inserted into the insertion portion 24 and fixed therein.
[0038] In the windshield 11, an area 41 surrounded by the insertion portion 24 and the light-shielding portion 25 is referred to as the "first shield portion 41." In the windshield 11, an area 42 other than the first shield portion 41 is referred to as the "second shield portion 42."
[0039] The light-shielding portion 25 is a plate-like member that extends from the front surface 11a to the rear surface 11c of the windshield 11, and separates the first shielding portion 41 from the second shielding portion 42. For example, the light-shielding portion 25 is composed of a first light-shielding portion 25a that extends linearly from the front surface 11a to the rear surface 11c of the windshield 11, and a second light-shielding portion 25b that extends from the tip of the first light-shielding portion 25a further toward the rear surface 11c while slanting toward the second shielding portion 42 side and reaching the rear surface 11c.
[0040] As is clear from the above description, the display system 20 includes an insertion portion 24 that is provided in the windshield 11 and is formed to surround the periphery of the reflector 23, and a light-shielding portion 25 that is inserted into the insertion portion 24. As a result, the display light DL that is incident from the light introducing portion 11b of the first shield portion 41 is blocked by the light-shielding portion 25 and does not (is less likely to) reach the second shield portion 42. Therefore, it is possible to prevent the display light DL from being emitted from the end portion 11d (see FIG. 1) of the second shield portion 42 that is separated from the first shield portion 41 and being viewed (dazzled) by the driver Dr (see FIG. 1).
[0041] 4, the insertion portion 24 has a reflecting surface 24a that reflects the display light DL guided inside the windshield 11 toward the driver's side Rr. In addition, the light-shielding portion 25 has a reflecting surface 25c that reflects the display light DL guided inside the windshield 11 toward the driver's side Rr. As a result, the reflecting surface 25c has the function of blocking the display light DL incident from the light introducing portion 11b of the first shield portion 41 so that it does not reach the second shield portion 42, as the light-shielding portion 25 described above, and can also efficiently emit the display light DL toward the driver's side Rr for visibility.
[0042] The light-shielding portion 25 is made of a white resin or a metallic material. Here, the term "metallic material" refers to a material that has an appearance similar to that of metal or metal plating, such as a metallic resin material to which a metal powder such as aluminum is added. Because the light-shielding portion 25 is made of a white resin or a metallic material, the color of the display light DL can be easily distinguished and the display light DL can be efficiently emitted to the driver's side Rr for improved visibility.
[0043] 5, the insertion portion 24 and the light-shielding portion 25 may be configured to have reflection surfaces 24a and 25c that reflect the display light DL from the light source 21 toward the side Fr (front side Fr) opposite the driver's side Rr. Specifically, the second light-shielding portion 25b of the light-shielding portion 25 of the modified example extends from the tip of the first light-shielding portion 25a toward the back surface 11c while inclining toward the first shield portion 41 side.
[0044] This makes it possible to make the display light DL less visible from the driver's side Rr on the reflecting surfaces 24a and 25c. Therefore, it is possible to further reduce the glare caused by the reflection of the display light DL to the driver's side Rr on the reflecting surfaces 24a and 25c.
[0045] 5, the light-shielding portion 25 may be made of a black material (e.g., resin). By making the light-shielding portion 25 of a black material, it is possible to further reduce the glare caused by the reflection of the display light DL on the reflective surface 25c toward the driver's side Rr.
[0046] <Example 2> A motorcycle windshield display system 120 according to the second embodiment will be described with reference to Fig. 6. Fig. 6 shows a cross-sectional configuration of the motorcycle windshield display system 120 according to the second embodiment, and corresponds to Fig. 4 described above.
[0047] The motorcycle windshield display system 120 (display system 120) of the second embodiment is characterized in that the windshield 11 is made of two types of material: a colored material and a colorless transparent material. Of the windshield 11, a colorless transparent material is used for the material of an area 41 (first shield part 41) surrounded by the insertion part 24 and the light-shielding part 25, and a colored transparent material is used for the other area 42 (second shield part 42). The other basic configuration is the same as that of the display system 20 of the first embodiment. The same reference numerals are used for parts that are the same as those of the first embodiment, and detailed explanations will be omitted.
[0048] More specifically, the first shield portion 41 of the windshield 11 is configured as a so-called colorless and transparent portion, which is made of a colorless and transparent material that does not contain any colorant and does not have a colored layer on its surface. The first shield portion 41 is made of, for example, polycarbonate resin (PC) that is optically transparent. As described above, the first shield portion 41 has a light introducing portion 11b that introduces the display light DL from the light source 21 and propagates the introduced display light DL. With this configuration, the color of the display light DL from the light source 21 can be visually recognized by the driver Dr without being changed by the colorant of the windshield 11.
[0049] The second shield portion 42 of the windshield 11 is a so-called colored portion made of a colored material, for example, light-transmitting polycarbonate resin (PC) with a blue colorant added, to make color changes due to ultraviolet rays less noticeable. The second shield portion 42 can be set to any color, such as blue or yellow. Alternatively, the second shield portion 42 may be configured such that a colored layer is formed on the surface by painting, vapor deposition, film insert molding, or the like, instead of adding a colorant to the inside.
[0050] The motorcycle windshield display system 120 described above also achieves the same effects as the motorcycle windshield display system 20 described in the first embodiment shown in FIGS.
[0051] In addition, the windshield 11 is made of two types of material: a colored material and a colorless, transparent material. The material of the windshield 11 in the area 41 (first shield portion 41) surrounded by the insertion portion 24 and the shading portion 25 is a colorless, transparent material. Therefore, the colored material, that is, the coloring agent added inside the material or the colored layer formed on the surface, allows the driver Dr to see the light without changing the emitted color of the light source 21. Therefore, even with a windshield 11 that uses a colored material, it is possible to prevent a decrease in visibility while limiting the emitting area.
[0052] Example 3 A motorcycle windshield display system 220 according to the third embodiment will be described with reference to Figures 7 to 10. Figure 7 shows a cross-sectional configuration of a motorcycle windshield display system 220 according to the third embodiment, and corresponds to Figure 4 above.
[0053] As shown in Fig. 7, a motorcycle windshield display system 220 (display system 220) according to the third embodiment is characterized in that the first shield portion 41 of the windshield 11 has a two-layer structure. The other basic configurations are the same as those of the display system 20 according to the first embodiment. The same reference numerals are used for the parts that are the same as those of the first embodiment, and detailed descriptions thereof will be omitted.
[0054] The area 41 (first shield portion 41) of the windshield 11 surrounded by the insertion portion 24 and the light-shielding portion 25 is configured as a two-layer structure consisting of a layer 221 (first layer 221) of optically transparent polycarbonate resin (PC) and a layer 222 (second layer 222) of optically transparent acrylic resin (PMMA).
[0055] For example, the first layer 221 made of polycarbonate resin constitutes the windshield 11 itself. The second layer 222 made of acrylic resin is laminated on and integrated with the rear surface 11c of the first layer 221 (the rear surface 11c of the windshield 11). The reflecting section 23 is interposed between the first layer 221 and the second layer 222. Display light DL from the light source 21 (see FIG. 4) is guided from the light guiding section 33 to the second layer 222.
[0056] The insertion portion 24 and the light-shielding portion 25 extend in a straight line from the front surface 11a of the windshield 11 to the rear surface 11c.
[0057] The motorcycle windshield display system 220 described above also achieves the same effects as the motorcycle windshield display system 20 described in the first embodiment shown in FIGS.
[0058] In addition, the material of the windshield 11 in the light-emitting area (first shield portion 41) surrounded by the shading portion 25 has a two-layer structure of light-transmitting polycarbonate resin and acrylic resin, and since acrylic resin with a relatively high surface hardness is placed on at least one side, it is less likely to get scratched, and the ultraviolet absorption effect of the acrylic resin reduces yellowing of the polycarbonate resin layer, making it possible to suppress changes in the light color of the light source 21, making it possible to provide a motorcycle windshield display system 220 that is less likely to lose its marketability.
[0059] Furthermore, as in the first modified example shown in Figure 8, the motorcycle windshield display system 220 can be configured to have a light-transmitting layer 223 (low refractive index layer 223) between the first layer 221 and the second layer 222, which has a refractive index lower than that of acrylic resin.
[0060] That is, the second layer 222 of acrylic resin is disposed on the driver's side Rr, and a low-refractive index layer 223 having a lower refractive index than the acrylic resin is provided between the first layer 221 of polycarbonate resin and the second layer 222 of acrylic resin. The reflective portion 23 is interposed between the second layer 222 and the low-refractive index layer 223. This reflective portion 23 is intended to reflect (diffuse reflection) light toward the driver's side Rr rather than reflect (specular reflection) light to guide it inside the windshield 11. For this reason, it is preferable to interpose the low-refractive index layer 223 between the first layer 221 and the second layer 222.
[0061] By doing so, the light guide efficiency of the components on the driver's side Rr can be increased, and a motorcycle windshield display system 220 can be provided that is brighter and more visible, is less prone to scratches, and is less susceptible to deterioration in marketability due to changes in the emitted color of the light source 21 caused by yellowing due to ultraviolet rays.
[0062] 9, in a motorcycle windshield display system 220, a second layer 222 made of acrylic resin can be laminated and integrated with the front surface 11a of the first layer 221. The reflector 23 is interposed between the first layer 221 and the second layer 222. In other words, the first layer 221 made of polycarbonate resin is a component of the windshield 11 itself, and is disposed on the rider's side (Rr). Display light DL from the light source 21 (see FIG. 4) is guided to the first layer 221 from the light guide 33.
[0063] By doing so, the light guide efficiency of the components on the driver's side Rr can be increased, and a motorcycle windshield display system 220 can be provided that is brighter, has improved visibility, is less prone to scratches, and is less susceptible to a decrease in marketability due to changes in the light emission color of the light source 21 caused by yellowing due to ultraviolet rays.
[0064] 10, in a motorcycle windshield display system 220, a second layer 222 made of acrylic resin can be laminated and integrated onto both surfaces 11a, 11b (front surface 11a and rear surface 11c) of a first layer 221 made of polycarbonate resin. In other words, the first layer 221 made of polycarbonate resin is a component of the windshield 11 itself. In this way, in the third modification, the windshield 11 in the area 41 (first shield portion 41) surrounded by the insertion portion 24 and the light-shielding portion 25 has a three-layer structure in which two second layers 222, 222 made of acrylic resin are disposed on the front surface 11a and rear surface 11c of the first layer 221 made of polycarbonate resin. The reflector 23 is interposed between the first layer 221 and the second layer 222 on the front side Fr. Display light DL from the light source 21 (see FIG. 4) is guided from the light guide section 33 to the first layer 221.
[0065] This makes it possible to provide a motorcycle windshield display system 220 that is even more scratch-resistant and less susceptible to loss of marketability due to changes in the emitted color of the light source 21 caused by yellowing due to ultraviolet rays.
[0066] It should be noted that the present invention is not limited to the examples provided that the functions and effects of the present invention are achieved. For example, the light blocking portion 25 may be configured to be fixed to the windshield 11 by insert molding at the position of the insertion portion 24 . [Industrial Applicability]
[0067] The motorcycle windshield display systems 20, 120, 220 of the present invention are suitable for installation on motorcycles. [Explanation of symbols]
[0068] 10 Motorcycles 11 Windshield 11a Windshield surface (front) 11b Light introduction part 11c Back of windshield 11d Windshield edge 20 Motorcycle Windshield Display System 21 Light source 22 Control Means 23 Reflector 24 Insertion section 24a Reflective surface 25 Light blocking section 25a Reflective surface 33 Light guide section 41 First shield part (area surrounded by the insertion part and the light-shielding part) 42 Second shield part (other area excluding the first shield part) 120 Motorcycle Windshield Display System 220 Motorcycle Windshield Display System 221 1st layer (light-transmitting polycarbonate resin layer) 222 Second layer (light-transmitting acrylic resin layer) 223 Low refractive index layer (light transmitting layer with low refractive index) Dr. Driver DL Light from a light source; display light Rr Driver's side
Claims
1. A windshield display system for a motorcycle comprising: a light source; a control means for turning on the light source or changing the lighting color of the light source when issuing a warning; a windshield for guiding light from the light source; a reflector installed on the surface of the windshield for reflecting the light from the light source toward the rider; an insertion portion provided on the windshield and formed to surround the periphery of the reflector; and a light-shielding portion inserted into the insertion portion.
2. The motorcycle windshield display system according to claim 1, wherein the insertion portion and the light blocking portion have reflective surfaces that reflect the light from the light source toward the rider.
3. 3. The motorcycle windshield display system according to claim 2, wherein the light-shielding portion is made of a white or metallic material.
4. The motorcycle windshield display system according to claim 1, wherein the insertion portion and the light blocking portion have reflective surfaces that reflect the light from the light source toward a side opposite to the rider.
5. 5. The motorcycle windshield display system according to claim 4, wherein the light-shielding portion is made of a black material.
6. The windshield is made of two materials: a colored material and a colorless transparent material.
2. The motorcycle windshield display system according to claim 1, wherein the colorless and transparent material is used for the windshield material in the area surrounded by the insertion portion and the light-shielding portion.
7. 2. The motorcycle windshield display system according to claim 1, wherein the windshield in the area surrounded by the insertion portion and the light-shielding portion has a two-layer structure of a light-transmitting polycarbonate resin and an acrylic resin.
8. the acrylic resin is disposed on the driver's side of the windshield, 8. The motorcycle windshield display system according to claim 7, further comprising a light-transmitting layer between the acrylic resin and the polycarbonate resin, the light-transmitting layer having a refractive index lower than that of the acrylic resin.
9. The motorcycle windshield display system according to claim 7, wherein the polycarbonate resin is disposed on the rider's side of the windshield.
10. 8. The motorcycle windshield display system according to claim 7, wherein the windshield in the area surrounded by the insertion portion and the light-shielding portion has a three-layer structure in which the acrylic resin is disposed on the front and back surfaces of the polycarbonate resin.
Citation Information
Patent Citations
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