Sun visor for a vehicle
By directly attaching the diffuser components to the back of the mirror panel to form an integral structure, the problems of light blocking and polarization caused by the gaps in the light shield are solved, achieving uniform light diffusion and reducing the number of parts, thus avoiding glare.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KYOWA SANGYO
- Filing Date
- 2021-12-01
- Publication Date
- 2026-07-21
AI Technical Summary
In existing vehicle sunshades, the gap between the light guide plate for lighting and the light guide plate for mirrors can easily cause light to be blocked or polarized by air or debris, resulting in glare.
The diffuser is directly attached to the back of the mirror panel to form an integral structure between the diffuser and the mirror panel, avoiding the formation of gaps. The combination of the diffuser and the reflective film ensures that light is diffused at the appropriate angle.
It effectively prevents light from being blocked or polarized by air or debris in the gaps, reduces the number of parts, improves the bonding strength, and ensures that light diffuses at the appropriate angle to avoid glare.
Smart Images
Figure CN116490727B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a vehicle sunshade equipped with a mirror. Background Technology
[0002] Patent Document 1 discloses a lighting device used in automotive instrument clusters and the like. This lighting device includes a light source and a light guide plate, the light guide plate having a reflective surface at its ends. The light source is configured such that only the half of the light from the optical axis on the side closest to the light guide plate is reflected towards the reflective surface. The light reflected on the reflective surface travels within the light guide plate and is reflected and diffused by the corrugated surface in the bottom surface of the light guide plate.
[0003] Patent Document 2 discloses an illumination device included in a mirror unit of a vehicle sun visor. This illumination device includes an LED as a light source, and the LED is adjacent to the side edge of a light guide plate constituting the mirror. However, since the light guide plate is relatively thin, it is difficult to ensure that the LED is adjacent to the side edge of the light guide plate. Therefore, it is considered to apply the illumination device described in Patent Document 1 to the back side of the light guide plate. That is, the illumination light guide plates are arranged side-by-side on the back side of the mirror light guide plate. The illumination light guide plates reflect and diffuse light using the corrugated surface of their bottom surface. The diffused light is incident on the light-emitting area of the mirror light guide plate.
[0004] Prior art literature
[0005] Patent documents
[0006] Patent Document 1: Japanese Patent No. 3838187
[0007] Patent Document 2: Japanese Patent Application Publication No. 2011-183958 Summary of the Invention
[0008] The problem that the invention aims to solve
[0009] However, a gap exists between the light guide plate for lighting and the light guide plate for the mirror, which acts as an air layer. Debris can easily get into this gap. Therefore, there is a possibility that light may be blocked by the air or debris in the gap, or that the light may be deflected in an unwanted direction. Therefore, there has been a need for a vehicle light visor that has a light source disposed on the back side of a mirror plate (light guide plate) constituting a mirror, and has a structure capable of emitting light from the light source at an appropriate angle.
[0010] Methods for solving problems
[0011] According to one feature of this disclosure, a vehicle sun visor equipped with a mirror and a light source has a plate-shaped sun visor body and a light source disposed within the sun visor body. A light guide plate is disposed on the surface side of the light source, allowing light from the light source to pass through. One end face of the light guide plate is a first emitting surface that reflects light incident from the back side of the light guide plate onto the light guide plate. A second emitting surface is formed on the back side of the light guide plate that reflects light passing along the light guide plate toward the surface side. A mirror plate is disposed side-by-side on the surface side of the light guide plate. The mirror plate has a mirror area that covers the first emitting surface of the light source and the light guide plate from the surface side. A reflective film constituting a mirror is installed on the back side of the mirror area of the mirror plate. The mirror plate has a light-emitting area that covers the second emitting surface of the light guide plate from the surface side. A diffuser is directly attached to the back side of the light-emitting area of the mirror plate, and the diffuser diffuses light from the light guide plate toward the surface side.
[0012] Therefore, the light guide plate and the mirror plate overlap in the thickness direction. This creates a mirror and light-emitting structure within a relatively thin framework. The diffuser is directly attached to the back of the mirror plate. Therefore, no gap is formed between the diffuser and the mirror plate. Thus, light passing through the diffuser is not blocked or polarized by air or debris entering the gap. Consequently, light emitted from the light-emitting area of the mirror plate is diffused towards the user at an appropriate angle. The first emitting surface of the light source and the light guide plate is covered by a reflective film. This prevents the first emitting surface of the light source and the light guide plate from directly entering the user's field of vision, thus preventing glare.
[0013] According to another feature of this disclosure, the diffuser is formed by an uneven shape on the back side of the light-emitting area of the mirror plate. That is, the diffuser is not a component independent of the mirror plate, but is formed on the mirror plate itself. As a result, the number of parts in the vehicle sun visor can be reduced. Furthermore, since the diffuser is formed on the mirror plate itself, no gap is formed between the mirror plate and the diffuser.
[0014] According to another feature of this disclosure, the diffuser has a smooth surface that directly contacts the back of the mirror panel, and a back surface with an uneven shape to diffuse light. Therefore, when the smooth surface of the diffuser is pressed against the back of the mirror panel, the area of the portion of the mirror panel in contact with the diffuser becomes larger. This more reliably suppresses the formation of gaps on the surfaces where the mirror panel and the diffuser are in contact. Consequently, light emitted from the light-emitting area of the mirror panel is diffused towards the user at an appropriate angle. Furthermore, the strength of the adhesion between the mirror panel and the diffuser is improved.
[0015] According to another feature of this disclosure, a planar coloring member containing a coloring material is provided on the back side of the diffuser. Therefore, light from the light guide plate is colored as it passes through the coloring member. This allows for arbitrary setting of the color of light emitted from the light-emitting area of the mirror plate. The coloring member is located upstream of the diffuser. Therefore, the coloring member can be made into a smaller shape. For example, if the coloring member is positioned downstream of the diffuser, the diffused light needs to be considered, thus enlarging the coloring member. Compared to this structure, the coloring member can be made into a smaller shape.
[0016] According to another feature of this disclosure, the vehicle sun visor has a second diffusing member that directly contacts the back surface of the diffusing member of the mirror panel. The second diffusing member has a smooth surface in contact with the diffusing member and a back surface with an uneven shape to diffract light. Therefore, light from the light guide plate is diffused by the second diffusing member. Light emitted from the second diffusing member is further diffused by the diffusing member of the mirror panel. Thus, light emitted from the light-emitting area of the mirror panel is diffused towards the user at a greater angle. Attached Figure Description
[0017] Figure 1 A three-dimensional view of a part of the vehicle interior and a sunshade mounted on the vehicle roof.
[0018] Figure 2 This is a perspective view of the light shield with the cover of the mirror unit open.
[0019] Figure 3 for Figure 2 A sectional view along line III-III.
[0020] Figure 4 This is an exploded stereoscopic view of the mirror unit.
[0021] Figure 5 This is a three-dimensional view of the back of the mirror panel.
[0022] Figure 6 for Figure 4 A sectional view along line VI-VI.
[0023] Figure 7 for Figure 2 A sectional view along line VII-VII.
[0024] Figure 8 for Figure 7 A magnified view of section VIII.
[0025] Figure 9 Equivalent to other implementations Figure 6 A cross-sectional view of the mirror panel and the diffuser components.
[0026] Figure 10 Equivalent to other implementations Figure 6 A cross-sectional view of the mirror panel and the diffuser components.
[0027] Figure 11 Equivalent to other implementations Figure 6 A cross-sectional view of the mirror panel.
[0028] Figure 12 for Figure 11 A magnified view of section XII. Detailed Implementation
[0029] use Figures 1 to 8 An embodiment of the present invention will now be described. For example... Figure 1 As shown, a vehicle sun visor 1 is installed inside the vehicle compartment on the roof surface 21 adjacent to the upper edge of the windshield 20. The vehicle sun visor 1 includes a plate-shaped sun visor body 10 and a mirror unit 2 disposed on one side of the sun visor body 10. The sun visor body 10 includes a first flat outer shell 10a and a second outer shell 10b that overlap in the thickness direction. A skin 10c is covered on the surface of the sun visor body 10 (see reference). Figure 7 ).
[0030] like Figure 1 As shown, a support shaft 11 and a bearing shaft 13 are mounted on the main body 10 of the sunshade. The support shaft 11 is a generally L-shaped rod with a horizontal axis 11a and a vertical axis 11b. The horizontal axis 11a is a long axis and is straight, and is rotatably inserted into the upper part of the main body 10 of the sunshade. The vertical axis 11b extends upward from the top of the horizontal axis 11a in a manner generally orthogonal to the horizontal axis 11a. The top of the vertical axis 11b is rotatably mounted on a bracket 12. The bracket 12 is mounted on the roof surface 21 of the carriage.
[0031] like Figure 1 As shown, the support shaft 13 is generally cylindrical and is detachably held in place by a hook 23 fixed to the headliner 21. By mounting the support shaft 13 to the hook 23, the sun visor body 10 can rotate about the support shaft 13 and the horizontal axis 11a between its operating position P along the windshield 20 and its storage position K along the headliner 21. Furthermore, by removing the support shaft 13 from the hook 23, the sun visor body 10 can rotate about its longitudinal axis 11b. Thus, the sun visor body 10 can rotate between its operating position P along the windshield 20 and its side position S along the side window 22.
[0032] like Figure 2 and Figure 3As shown, the mirror unit 2 has an openable and closable cover 2b. Hereinafter, with the light-shielding body 10 in the use position P, the directions will be defined as up / down, left / right, and back / front, based on the state observed by the user. On a single surface of the light-shielding body 10, a rectangular mirror storage portion 10d is formed, recessed inwards in the thickness direction by a first outer shell 10a. The mirror unit 2 is embedded in the mirror storage portion 10d.
[0033] like Figure 4 As shown, the mirror unit 2 has a rectangular mirror frame 2a. A cover 2b is installed on the surface of the mirror frame 2a in an openable and closable manner. On the back side of the mirror frame 2a, a mirror plate 3, a reflector 6, and a unit platform 5 are sequentially installed. A light source 4 is provided on the unit platform 5. By closing the cover 2b, the mirror plate 3 can be covered. Figure 5 As shown, a diffuser plate 7 (diffuser component) is disposed on the back of the mirror plate 3.
[0034] like Figure 4 As shown, the unit 5 has a base 5a, with a cutout 5d formed in the center of the base 5a. Substrates 5b are arranged on the left and right sides of the base 5a. Multiple, for example, three, light sources 4 are arranged on each substrate 5b. The light sources 4 are, for example, LEDs (light-emitting diodes). A switch 5c for switching the power supply to and from the light sources 4 is arranged on the upper side of the cutout 5d.
[0035] like Figure 4 and Figure 8 As shown, a reflector 6 with a light guide plate 6a is disposed on the unit 5. The reflector 6 is disposed on the left and right sides of the base 5a and covers the substrate 5b on which the light source 4 is mounted. The light guide plate 6a is rectangular in shape and covers the substrate 5b. The surface of the light guide plate 6a other than its surface is surrounded by the reflector 6. The reflector 6 has a reflector plate 6d on the surface that contacts the back of the light guide plate 6a.
[0036] like Figure 4 As shown, flat, plate-shaped mirror plates 3 are arranged side-by-side on the surface of the light guide plate 6a. The mirror plates 3 are mounted in the mirror frame 2a and cover the left and right reflectors 6. Thus, the left and right light guide plates 6a are covered by a single mirror plate 3. The top of a cover 2b is rotatably mounted on the mirror frame 2a. Therefore, as... Figure 3 As shown, by rotating the cover 2b upwards, the mirror plate 3 is exposed.
[0037] Mirror panel 3, for example, uses a glass semi-mirror. Figure 4As shown, the mirror plate 3 has a mirror area 3a at its center in the left-right direction, which functions as a mirror, and light-emitting areas 3b on both the left and right sides, which function as lighting devices. Figure 7 and Figure 8 As shown, the mirror region 3a covers the first emitting surface 6b of the light source 4 and the light guide plate 6a from the surface side. The light-emitting region 3b covers the second emitting surface 6c of the light guide plate 6a from the surface side. A silver film is installed on the back side of the mirror region 3a as a reflective film 8 constituting the mirror.
[0038] like Figure 5 As shown, the reflective film 8 is mounted on the back of the mirror plate 3. Specifically, a silver film is printed onto the back of the mirror plate 3, extending from the center to both sides, excluding the left and right ends of the mirror plate 3. The portion of the mirror plate 3 with the silver film mounted becomes a mirror surface and reflects light incident from the surface side of the mirror plate 3. That is, it functions as a mirror area 3a.
[0039] On the back side 3d of the light-emitting area 3b in mirror plate 3, as... Figure 5 and Figure 6 The diffuser 7 is directly attached to the mirror plate 3. For example, the diffuser 7 is mounted on the mirror plate 3 by adhesive or double-sided tape. The diffuser 7 has a smooth surface 7a and a concave-convex surface 7b. The smooth surface 7a, as the surface of the diffuser 7, is in direct contact with the back surface of the mirror plate 3. The concave-convex surface 7b, as the back surface of the diffuser 7, has a concave-convex shape to diffuse light. The concave-convex shape is alternately arranged in the left-right direction and extends in the up-down direction. The diffuser 7 diffuses light to the surface side by changing the angle of light from the light guide plate 6a towards the surface side. By bonding the back surface 3d of the light-emitting area 3b to the smooth surface 7a of the diffuser 7, the formation of gaps between the mirror plate 3 and the diffuser 7 is suppressed.
[0040] like Figure 8 As shown, the light guide plate 6a is formed of a material through which light from the light source 4 can pass. For example, an acrylic resin is used. The light guide plate 6a has an end face on the central side of the unit 5, and the end face has a first emitting surface 6b on its back side that is inclined from the center of the unit 5 in the left-right direction toward the end side. The first emitting surface 6b is inclined toward the base 5a of the unit 5. The first emitting surface 6b is configured to overlap with the light from the light source 4. The first emitting surface 6b causes light incident on the light guide plate 6a from the back side of the light guide plate 6a to be reflected along the light guide plate 6a. The light guide plate 6a is patterned so that the light reflected by the first emitting surface 6b exits from the surface of the light guide plate 6a. The back side of the light guide plate 6a is in contact with the reflector 6d of the reflector 6. On the back side of the light guide plate 6a, a second emitting surface 6c is formed to reflect light passing along the light guide plate 6a toward the surface side.
[0041] like Figure 3 As shown, a switch 5c is provided on the mirror unit 2. The switch 5c is turned on when the cover 2b is opened and turned off when the cover 2b is closed. The switch 5c electrically connects the base plate 5b to the vehicle's power supply by being turned on, or electrically disconnects them by being turned off. The power supply wires from the vehicle pass through the support shaft 11 and the light shield body 10 from the roof surface 21 and are connected to the switch 5c and the base plate 5b. Thus, power is supplied to the light source 4, causing the light source 4 to emit light.
[0042] like Figure 8 As shown, light emitted from the light source 4 enters the light guide plate 6a from the back side and is reflected by the first exit surface 6b. The reflected light from the first exit surface 6b travels within the light guide plate 6a while being reflected along it, or travels directly within the light guide plate 6a. Because the light source 4 is arranged separately from the light-emitting area 3b, the light emitted by the light source 4 and the reflected light from the first exit surface 6b are prevented from directly entering the user's field of vision. The light within the light guide plate 6a is reflected by the second exit surface 6c on the back side of the light-emitting area 3b. The reflected light from the second exit surface 6c enters the light-emitting area 3b of the mirror plate 3 via the diffuser 7.
[0043] Reference Figure 6 Light passing through the diffuser 7 is diffused by the uneven surface 7b. Specifically, the reflected light from the second emitting surface 6c in the light guide plate 6a is refracted and reflected by the uneven shape of the uneven surface 7b, thereby being uniformly diffused in multiple directions. As a result, when viewed from the user's side, the pattern of the reflected light from the second emitting surface 6c is hidden, and it emits light with uniform brightness.
[0044] Reference Figure 6 and Figure 8 Light diffused by the uneven surface 7b enters the light-emitting area 3b from the back of the mirror plate 3 via the smooth surface 7a. Since the smooth surface 7a is in close contact with the back of the mirror plate 3, no or almost no air layer is formed. Therefore, the diffused light is not polarized and exits from the surface of the light-emitting area 3b at an appropriate angle. Thus, the light-emitting area 3b functions as a lighting device.
[0045] As mentioned above, Figure 2 As shown, the vehicle sun visor 1 has a plate-shaped sun visor body 10 and a light source 4 disposed within the sun visor body 10. For example... Figure 4 and Figure 8As shown, the mirror unit 2 has a light guide plate 6a through which light from the light source 4 can pass on the surface side of the light source 4. One end face of the light guide plate 6a is a first exit surface 6b that reflects light incident from the back of the light guide plate 6a along the light guide plate 6a. On the back of the light guide plate 6a, a second exit surface 6c is formed that reflects light passing along the light guide plate 6a toward the surface side (see reference). Figure 8 A mirror plate 3 is arranged side-by-side on the surface side of the light guide plate 6a. The mirror plate 3 has a mirror region 3a that covers the light source 4 and the first emission surface 6b of the light guide plate 6a from the surface side. A reflective film 8 constituting a mirror is installed on the back side of the mirror region 3a of the mirror plate 3. The mirror plate 3 has a light-emitting region 3b that covers the second emission surface of the light guide plate 6a from the surface side. A diffuser (e.g., a diffuser sheet 7) is directly attached to the back side 3d of the light-emitting region 3b of the mirror plate 3, and the diffuser (diffuser sheet 7) diffuses the light from the light guide plate 6a toward the surface side.
[0046] Therefore, the light guide plate 6a and the mirror plate 3 overlap in the thickness direction. This creates a mirror and a light-emitting structure within a relatively thin structure. The diffuser (diffuser 7) is directly attached to the back of the mirror plate 3. Therefore, no gap is formed between the diffuser (diffuser 7) and the mirror plate 3. Thus, light passing through the diffuser (diffuser 7) will not be blocked or polarized by air or debris entering the gap. Therefore, light emitted from the light-emitting area 3b of the mirror plate 3 will be diffused towards the user at an appropriate angle. The light source 4 and the first emitting surface 6b of the light guide plate 6a are covered by the reflective film 8. Therefore, the light source 4 and the first emitting surface 6b of the light guide plate 6a are prevented from directly entering the user's field of vision. This prevents glare for the user.
[0047] like Figure 6 As shown, the diffuser (e.g., diffuser plate 7) has a smooth surface (e.g., smooth surface 7a) that directly contacts the back surface of the mirror plate 3, and a back surface (e.g., uneven surface 7b) with an uneven shape to diffuse light. Therefore, when the smooth surface (smooth surface 7a) of the diffuser (diffuser plate 7) is pressed against the back surface of the mirror plate 3, the contact area between the mirror plate 3 and the diffuser (diffuser plate 7) becomes larger. This allows for more reliable suppression of gaps forming on the contact surfaces of the mirror plate 3 and the diffuser (diffuser plate 7). Consequently, light emitted from the light-emitting area 3b of the mirror plate 3 is diffused towards the user at an appropriate angle. Furthermore, the strength of the contact between the mirror plate 3 and the diffuser (diffuser plate 7) can be improved.
[0048] like Figure 6As shown, the diffuser component (e.g., diffuser sheet 7) is directly and tightly attached to the back of the mirror plate 3 by adhesive. Therefore, the mirror plate 3 and the diffuser component (diffuser sheet 7) are in a state where they are tightly attached to each other on their contact surfaces. As a result, it is possible to create a structure in which the diffuser component (diffuser sheet 7) is difficult to peel off from the mirror plate 3.
[0049] like Figure 7 and Figure 8 As shown, by tilting the reflector 6 and the light guide plate 6a at the same angle on the end face of the central side of the unit stage 5, the first emission surface 6b is formed (see reference). Figure 8 Furthermore, the first emitting surface 6b is configured to overlap with the light from the light source 4. Therefore, it is possible to allow the light emitted by the light source 4 to enter the light guide plate 6a while concealing the light source 4 from the user's field of vision.
[0050] like Figure 7 As shown, in mirror unit 2, the respective planes of mirror plate 3 and substrate 5b are arranged in parallel. This structure allows for the arrangement of mirror plate 3 and substrate 5b without depending on the thickness of the light-shielding plate body 10. Furthermore, the mounting surface of the substrate can be used extensively. Therefore, electronic components other than light source 4 can be mounted on a single substrate, reducing the number of components and assembly time, thereby achieving cost reduction.
[0051] This disclosure is not limited to the appearance and structure described in the above embodiments, and various changes, additions, and deletions can be made without changing the main idea.
[0052] For example, such as Figure 11 and Figure 12 As shown, a diffuser can also be formed by an uneven shape on the back 3d of the light-emitting area of the mirror plate 3. Specifically, the uneven shape is formed at both ends of the mirror plate 3 in the left and right directions by mechanically cutting the reflective film (see reference). Figure 12 The uneven shape can be formed into striped patterns, grids, wrinkles, etc., for example, by laser processing. Depressions can also be locally formed by shot peening. That is, the diffuser (the uneven shape of the 3D back surface of the light-emitting area) is not a component independent of the mirror plate 3, but is formed on the mirror plate 3 itself. This reduces the number of parts in the vehicle sunshade 1. Furthermore, since the diffuser (the uneven shape of the 3D back surface of the light-emitting area) is formed on the mirror plate 3 itself, no gap is formed between the mirror plate 3 and the diffuser (the uneven shape of the 3D back surface of the light-emitting area).
[0053] Figure 11The mirror plate 3 shown can also be configured to have a second diffuser (e.g., diffuser sheet 7) that is in direct contact with the back side of the diffuser (the uneven shape of the back side 3d of the light-emitting area). Both the surface and back side of the second diffuser (diffuser sheet 7) are made smooth. A planar coloring component containing coloring material (e.g., a milky white raw material) is printed onto the back side of the second diffuser (diffuser sheet 7). Therefore, light from the light guide plate 6a is colored by passing through the coloring component. Thus, the color of the light emitted from the light-emitting area 3b of the mirror plate 3 can be arbitrarily set. The coloring component is located upstream of the second diffuser (diffuser sheet 7). Therefore, the coloring component can be made into a smaller shape. For example, if the coloring component is positioned downstream of the second diffuser (diffuser sheet 7), it is necessary to consider the light diffusion and thus enlarge the coloring component. Compared to such a structure, the coloring component can be made into a smaller shape. The coloring component can also be mounted in a sheet state instead of being printed.
[0054] like Figure 6 As shown, the second diffuser (diffuser 7) can also be configured to have a smooth surface (smooth surface 7a) in contact with the diffuser (diffuser 7) and a back surface (undulating surface 7b) with an uneven shape to diffuse light. Light from the light guide plate 6a is diffused by the second diffuser (diffuser 7). Light emitted from the second diffuser (diffuser 7) is further diffused by the uneven shape formed on the back surface 3d of the light-emitting area. As a result, light emitted from the light-emitting area 3b of the mirror plate 3 will be diffused toward the user at a greater angle.
[0055] Figure 11 The uneven shape of the back surface 3d of the light-emitting area of the mirror plate 3 functions as a diffuser. Thus, even if the back surface of the mirror plate 3 is mechanically processed, a structure can be constructed where the second diffuser (diffuser 7) is not mounted on the back surface 3d of the light-emitting area. Alternatively, a structure can be constructed where a planar coloring component (e.g., raw material of milky white, orange, etc.) containing coloring material is printed on the uneven shape of the back surface 3d of the light-emitting area. The coloring component can also be mounted in other sheet forms.
[0056] It can also be in Figure 6 and Figure 9The back surfaces of the diffuser sheets 7 and 30 shown are provided with planar coloring components containing coloring material (e.g., raw materials such as milky white or orange). Light from the light guide plate 6a is colored by passing through the coloring components. Therefore, the color of the light emitted from the light-emitting area 3b of the mirror plate 3 can be arbitrarily set. The coloring components are located upstream of the diffuser sheets 7 and 30. Therefore, the coloring components can be made in a smaller shape. The mounting method of the coloring components can be appropriately selected, such as formation by printing or bonding in a sheet state.
[0057] Figure 6 The smooth surface 7a of the diffuser 7 shown is mounted on the mirror plate 3, and the concave and convex surfaces 7b face in the opposite direction to the mirror plate 3. Alternatively, it can be configured as follows: Figure 9 The diffuser sheet 30 is shown. The uneven surface 30b of the diffuser sheet 30 is bonded to the back surface 3d of the luminous area 3b of the mirror plate 3. The smooth surface 30a faces the opposite direction to the mirror plate 3. Alternatively, it can be configured as follows: Figure 10 The diffuser sheet 31 shown is formed from raw material 31a containing a material that reflects light, such as glass beads.
[0058] Figure 6 The diffuser sheet 7 shown is mounted on the mirror plate 3 using adhesive or tape. Alternatively, the diffuser component can be printed onto the mirror plate 3 using inkjet or screen printing. This allows for a structure where the diffuser component is difficult to peel off from the mirror plate 3. The diffuser component can be a separate sheet or can be printed thinly on the back of the mirror plate 3.
[0059] Figure 3 The mirror shown is a semi-mirror, and has a mirror plate 3 made of a light-transmitting material and a reflective film 8 for reflecting light (see reference). Figure 5 Alternatively, a regular mirror can be used instead in mirror area 3a. Figure 3 The mirror panel 3 shown can be formed from glass or from a light-permeable material such as acrylic resin. Figure 5 The reflective film 8 shown is a silver film printed on the mirror plate 3. Alternatively, aluminum can be installed on the mirror plate 3 by means of vapor deposition or other methods instead of a silver film.
[0060] Figure 2 The light-shielding panel body 10 shown is configured to have two outer shells. Alternatively, the light-shielding panel body 10 can be formed into a single piece from foam beads or the like.
[0061] Figure 4 The light source 4 shown is an LED. However, other types of light sources can also be used instead. The number and configuration of the light sources 4 can be appropriately changed. Figure 4The light guide plate 6a shown is formed of acrylic resin. Alternatively, the light guide plate 6a can be formed of other materials such as polycarbonate or glass.
[0062] Figure 8 The first exit surface 6b shown is configured as a plane inclined toward the base 5a. The inclination angle is arbitrarily set. The first exit surface 6b is configured as a plane with a straight cross-sectional shape. Alternatively, the first exit surface 6b can be formed as a curved surface, a bent shape, etc.
[0063] exist Figure 8 The light guide plate 6a shown has a second emission surface 6c formed on its back side. The second emission surface 6c can be produced by various methods, such as printing dot patterns or cutting grooves.
[0064] Symbol Explanation
[0065] 1. Vehicle sunshade
[0066] 2 mirror units
[0067] 2a Mirror frame
[0068] 2b. Cover;
[0069] 3. Mirror panel
[0070] 3a Mirror area
[0071] 3b Light-emitting area
[0072] 3D luminous area back side
[0073] 4. Light source
[0074] 5-unit station
[0075] 5a Base
[0076] 5b base plate
[0077] 5c switch
[0078] 6. Reflectors
[0079] 6a light guide plate
[0080] 6b First Exit Surface
[0081] 6c Second exit surface
[0082] 7. Diffuser plate (diffuser component)
[0083] 7a Smooth surface (surface of diffused component)
[0084] 7b Undulated surface (back side of diffused component)
[0085] 8. Reflective film
[0086] 10. Main body of the light-shielding panel
Claims
1. A sunshade for a vehicle, characterized in that, have: Plate-shaped sunshade body (10); A light source (4) is disposed within the light-shielding plate body (10); A light guide plate (6a) is configured to include a first emitting surface (6b) and a second emitting surface (6c), and is disposed on the surface side of the light source (4), and is capable of allowing light from the light source (4) to pass through. The first emitting surface (6b) is one of the end faces of the light guide plate (6a), and is configured to reflect light incident from the back side of the light guide plate (6a) into the light guide plate (6a) along the light guide plate (6a). The second emitting surface (6c) is disposed on the back side of the light guide plate (6a) to reflect light passing through the light guide plate (6a) toward the surface side. A mirror plate (3) is arranged side by side on the surface side of the light guide plate (6a) and includes a mirror area (3a) and a light-emitting area (3b). The mirror area (3a) is the area that covers the light source (4) and the first emission surface (6b) of the light guide plate (6a) from the surface side, and the light-emitting area (3b) is the area that covers the second emission surface (6c) of the light guide plate (6a) from the surface side. A reflective film (8) is installed on the back of the mirror area (3a) of the mirror plate (3) and forms a mirror; The diffuser component (7) is configured such that it is directly attached to the back of the light-emitting area (3b) of the mirror plate (3) to diffuse the light from the light guide plate (6a) toward the surface side. The diffuse component (7) does not cover at least a portion of the reflective film (8) in the mirror region (3a).
2. The vehicle sunshade as described in claim 1, characterized in that, The diffuser component (7) is formed by the concave-convex shape of the back side of the light-emitting area (3b) of the mirror plate (3).
3. The vehicle sunshade as described in claim 1, characterized in that, The diffuser (7) has a smooth surface that is in direct contact with the back of the mirror plate (3) and a back surface that is formed in a concave-convex shape to diffuse light.
4. The vehicle sunshade as described in claim 2 or 3, characterized in that, A planar coloring component containing coloring material is provided on the back side of the diffuse component (7).
5. The vehicle sunshade as described in claim 2, characterized in that, It has a second diffuser component, which is in direct contact with the back of the diffuser component (7) of the mirror plate (3). The second diffuser has a smooth surface that contacts the diffuser (7) and a back surface that has an uneven shape formed in a manner that diffuses light.
6. A sunshade for a vehicle, characterized in that, have: Plate-shaped sunshade body (10); A light source (4) is disposed within the light-shielding plate body (10); A light guide plate (6a) is configured to include a first emitting surface (6b) and a second emitting surface (6c), and is disposed on the surface side of the light source (4), and is capable of allowing light from the light source (4) to pass through. The first emitting surface (6b) is one of the end faces of the light guide plate (6a) configured to overlap with the light from the light source (4), and is configured to reflect light incident from the back side of the light guide plate (6a) into the light guide plate (6a) along the light guide plate (6a). The second emitting surface (6c) is disposed on the back side of the light guide plate (6a) to reflect light passing through the light guide plate (6a) toward the surface side. A mirror plate (3) is arranged side by side on the surface side of the light guide plate (6a) and includes a mirror area (3a) and a light-emitting area (3b), wherein the light-emitting area (3b) is the area that covers the second emission surface (6c) of the light guide plate (6a) from the surface side; A reflective film (8) is installed on the back of the mirror area (3a) of the mirror plate (3) and forms a mirror; The diffuser component (7) is configured such that it is directly attached to the back of the light-emitting area (3b) of the mirror plate (3) to diffuse the light from the light guide plate (6a) toward the surface side. in, The light source (4) is configured to be separate from the light-emitting area (3b). The diffuse component (7) does not cover at least a portion of the reflective film (8) in the mirror region (3a).