Vehicle projection device

JP2026142586APending Publication Date: 2026-09-08NIPPON SEIKI CO LTD
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Patent Information

Application Number
JP2025029635
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-09-08

AI Technical Summary

Benefits of technology

【0007】 本発明によれば、共通の製品の車両用投影装置を車両の室内の左右両側に利用できるようにすることで、1つの製品の利用範囲を拡大することができる。

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Abstract

By making the vehicle projection device, a common product, usable on both the left and right sides of the vehicle's interior, the range of applications for a single product is expanded. [Solution] A projector 8 installed inside a vehicle C comprises a light source 11 that emits light, a pattern lens 13 on which a pattern portion 12 is formed and which emits light corresponding to the pattern portion 12 based on the light incident from the light source 11, a projection lens 14 that projects an image corresponding to the pattern portion 12 onto the interior of the vehicle C based on the light incident from the pattern lens 13, and a housing 15 that houses the light source 11, the pattern lens 13, and the projection lens 14. The housing 15 is configured to accommodate the pattern lens 13 with its orientation reversed in the left-right direction perpendicular to the optical axis direction and the vertical direction.
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Description

Technical Field

[0001] The present invention relates to a vehicle projection device installed in a vehicle cabin and configured to project an image onto the interior of the vehicle. Background Art

[0002] Conventionally, for example, the projector described in Patent Document 1 is known. This projector is mainly used in vehicle cabins, and is attached to, for example, side panels, instrument panels, and doors of vehicle interiors, and projects images onto decorative panels and decorative ornaments included in doors, floor mats, ceilings, instrument panels, door trims, and the like. Prior Art Documents Patent Documents

[0003] Patent Document 1 Japanese Unexamined Patent Application Publication No. 2023-70359 Summary of the Invention Problems to be Solved by the Invention

[0004] However, in the above-mentioned conventional technology, the projected image is reversed when an image is projected onto the left interior of the vehicle compared to when an image is projected onto the right interior of the vehicle. For this reason, there has been a problem that a common projector product cannot be used for both the left and right sides of a vehicle cabin.

[0005] Accordingly, the present invention has been made in view of the above-described problems. An object of the present invention is to provide a vehicle projection device that can expand the application range of a single product by enabling a common vehicle projection device product to be used on both the left and right sides of a vehicle cabin. Means for Solving the Problems

[0006] The present invention relates to a vehicle projection device 8 installed inside a vehicle C, comprising: a light source 11 that emits light; a pattern lens 13 having a pattern portion 12 formed thereon that emits light corresponding to the pattern portion 12 based on light incident from the light source 11; a projection lens 14 that projects an image corresponding to the pattern portion 12 onto the interior of the vehicle C based on light incident from the pattern lens 13; and a housing 15 that houses the light source 11, the pattern lens 13, and the projection lens 14, wherein the housing 15 is configured to accommodate the pattern lens 13 with its orientation reversed in the left-right direction perpendicular to the optical axis direction and the vertical direction. [Effects of the Invention]

[0007] According to the present invention, by making a common vehicle projection device usable on both the left and right sides of the vehicle's interior, the range of use for a single product can be expanded. [Brief explanation of the drawing]

[0008] [Figure 1] A schematic diagram showing the internal configuration of a vehicle equipped with a projector according to the embodiment. [Figure 2] A schematic diagram showing the internal configuration of a vehicle equipped with a conventional vehicle projection device. [Figure 3] A perspective view showing the external configuration of a projector according to this embodiment. [Figure 4] A top view showing the projector's configuration with the top case removed. [Figure 5] A horizontal cross-sectional view showing a horizontal cross-section of the projector according to the embodiment. [Figure 6] A vertical cross-sectional view showing a vertical cross-section of the projector according to the embodiment. [Figure 7] A perspective view showing a configuration in which a projector with markings formed on its side is positioned on the driver's side. [Figure 8] A perspective view showing a configuration in which a projector with markings formed on its side is positioned on the passenger side. [Figure 9] A perspective view from the opposite side of the passenger door, showing a projector enclosure with a cover, positioned on the passenger side. [Figure 10] A perspective view from the passenger side door showing a projector enclosure with a cover, positioned on the passenger side. [Figure 11] A perspective view from the opposite side of the passenger door, showing a projector positioned on the passenger side with a slidable cover on its upper case. [Figure 12] A perspective view from the passenger side door of a projector located on the passenger side, with a sliding cover attached to the upper case. [Figure 13] A perspective view of the projector configuration, which is positioned on the passenger side according to a modified configuration, as seen from the opposite side of the passenger door. [Figure 14] A perspective view from the passenger side door of the projector configuration located on the passenger side in a modified configuration. [Figure 15] A top view showing the configuration of the projector with the upper case removed, in the modified state. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below with reference to the drawings.

[0010] <Vehicle Interior Configuration> Figure 1 is a schematic diagram showing the internal configuration of a vehicle equipped with a projector according to the embodiment. Figure 2 is a schematic diagram showing the internal configuration of a vehicle equipped with a conventional vehicle projection device.

[0011] As shown in FIG. 1, a vehicle C includes a windshield 1, a driver's door 2, a front passenger door 3, and the like. In the cabin of the vehicle C, a steering wheel 4, an instrument panel 5 on which various instruments and switches are arranged, and the like are arranged on the driver's seat side, and a glove box 6 and the like are arranged on the front passenger seat side. Further, a dashboard 7 is arranged below the windshield 1 so as to straddle the driver's seat and the front passenger seat. Projectors 8 are respectively arranged on the driver's seat side and the front passenger seat side at lower portions of left and right ends of the dashboard 7. The projector 8 (vehicle projection device) on the driver's seat side projects an image IR onto an indoor surface 2a (vehicle interior) of the driver's door 2. The projector 8 (vehicle projection device) on the front passenger seat side projects an image IL onto an indoor surface 3a (vehicle interior) of the front passenger door 3.

[0012] In FIG. 2, a projector 8' having a conventional structure is installed in a vehicle C having the same configuration as that in FIG. 1. The projector 8' incorporates a pattern lens 13' having a pattern portion 12 formed thereon, and projects images IR and IL corresponding to the pattern portion 12. The pattern portion 12 is a pattern that is symmetrical in the vertical direction and asymmetrical in the left-right direction. In the present embodiment, the pattern is, for example, a horizontally oriented fan-shaped pattern. As shown in FIG. 2, when the conventional projector 8' is installed on the driver's seat side and the front passenger seat side, the orientation of the image IR projected onto the surface 2a of the driver's door 2 and the orientation of the image IL projected onto the surface 3a of the front passenger door 3 are opposite to each other in the front-rear direction, and one of the images (the image IL in this example) becomes an unintended image. For this reason, the commonly used product projector 8' cannot be used for both left and right sides in the cabin of the vehicle C.

[0013] On the other hand, as shown in Fig. 1, the projector 8 of the present embodiment incorporates a pattern lens 13 having a pattern portion 12 formed thereon, and is configured such that the orientation of the pattern lens 13 can be reversed in the left-right direction. This allows the orientation of the image IR projected onto the surface 2a of the driver's seat door 2 and the orientation of the image IL projected onto the surface 3a of the passenger seat door 3 to be the same in the front-rear direction, enabling the intended images to be projected on both the left and right sides. Therefore, the common product projector 8 can be used for both the left and right sides of the interior of the vehicle C, and the application range of one product can be expanded. The detailed structure of the projector 8 according to the embodiment will be described below.

[0014] <Configuration of Projector> Fig. 3 is a perspective view showing an external configuration of the projector according to the embodiment. Fig. 4 is a top view showing the configuration of the projector in a state where an upper case is removed. Fig. 5 is a horizontal cross-sectional view showing a horizontal cross-section of the projector according to the embodiment. Fig. 6 is a vertical cross-sectional view showing a vertical cross-section of the projector according to the embodiment.

[0015] As shown in Figs. 5 and 6, the projector 8 includes a light source 11 that emits light, a pattern lens 13 on which a pattern portion 12 is formed and which emits light corresponding to the pattern portion 12 based on the light incident from the light source 11, a projection lens 14 that projects an image corresponding to the pattern portion 12 onto the interior of the vehicle C based on the light incident from the pattern lens 13, and a housing 15 that accommodates the light source 11, the pattern lens 13, and the projection lens 14. The light source 11 is, for example, an LED, an organic EL, or the like. The pattern lens 13 outputs parallel light corresponding to the pattern portion 12, and the projection lens 14 projects light such that an image corresponding to the pattern portion 12 is formed at the focal length. The pattern lens 13 and the projection lens 14 may be made of, for example, glass or transparent resin.

[0016] The housing 15 is configured to accommodate the shank lens 13 with its orientation reversed in the left-right direction perpendicular to the optical axis direction and the up-down direction (vertical direction). Specifically, as shown in Figure 3, the housing 15 has an upper case 15U located on the upper side and a lower case 15L located on the lower side. The upper case 15U and the lower case 15L are configured to be separable. The upper case 15U has a slit-shaped first opening 16 in the region facing the side surface 13a of the shank lens 13, opening in an angular range of approximately 180° from one side to the other in the left-right direction around the optical axis. The housing 15 is made of, for example, a light-shielding resin.

[0017] As shown in Figures 3 and 5, the pattern lens 13 has a first projection 13b that penetrates the first aperture 16 and protrudes to the outside of the upper case 15U. As shown in Figures 4 and 5, the pattern lens 13 has a first surface 13c located on the light source 11 side and a second surface 13d located on the opposite side of the first surface 13c in the optical axis direction, on which the pattern portion 12 is formed. The first projection 13b is positioned between the first surface 13c and the second surface 13d in the optical axis direction.

[0018] As shown in Figures 4 and 5, the first surface 13c of the shank lens 13 abuts against the rib 9 of the housing 15, and the second surface 13d of the shank lens 13 abuts against the end surface 14a of the projection lens 14 on the light source 11 side. The end surface 14b of the projection lens 14 opposite to the light source 11 abuts against the rib 10 of the housing 15. As a result, the shank lens 13 and the projection lens 14 are supported in the direction of the optical axis.

[0019] As shown in Figures 4 and 5, the handle lens 13 has a protrusion 13e on the side opposite the first projection 13b in the left-right direction, which does not protrude outside the upper case 15U. The vertical dimension of the protrusion 13e is formed to be approximately the same as that of the first projection 13b. The protrusion 13e protrudes toward the end of the first opening 16 that is not penetrated by the first projection 13b (the left end in Figures 4 and 5), thereby preventing foreign matter and external light from entering from the end of the first opening 16. The portion of the first opening 16 other than the first projection 13b and the protrusion 13e is covered by the cover 22 (see Figures 11 and 12), which will be described later.

[0020] The stylus lens 13 is rotatably housed in the housing 15 such that the first projection 13b moves (rotates approximately 180°) between one end and the other end of the first aperture 16. Specifically, as shown in Figure 6, the housing 15 has a plurality of ribs 17a to 17f that rotatably support the side surface 13a of the stylus lens 13 at multiple points (e.g., 6 points). The plurality of ribs 17a to 17f are provided at multiple locations (e.g., 2 locations) in the optical axis direction. In the example shown in Figure 6, the side surface 13a of the stylus lens 13 is supported by ribs 17a, 17b, and 17c at three points on the projection lens 14 side in the optical axis direction, and by ribs 17d, 17e, and 17f (not shown) at three points on the light source 11 side in the optical axis direction. A gap 18 is formed between the ribs 17a, 17b, and 17c and the ribs 17d, 17e, and 17f, thereby preventing interference with the protrusion 13e and ensuring that the rotation of the handle lens 13 is not hindered.

[0021] With the above configuration, by moving the first projection 13b of the pattern lens 13 from one end to the other end of the first aperture 16, the pattern lens 13 can be rotated approximately 180° around the optical axis, thereby reversing the orientation of the pattern lens 13 in the left-right direction. In this case, as shown in Figure 1, the housing 15 of the projector 8 is attached to the vehicle C such that the side opposite to the direction in which the first projection 13b protrudes faces the interior side onto which the IR and IL images are projected.

[0022] Furthermore, markings resembling the design portion 12 may be formed on both the left and right sides of the housing 15. Figure 7 is a perspective view showing a configuration in which the projector 8 with markings formed on its side is positioned on the driver's side. Figure 8 is a perspective view showing a configuration in which the projector 8 with markings formed on its side is positioned on the passenger side. As shown in Figure 7, the projector 8 projects an image IR onto the interior surface 2a of the driver's side door 2. The marking 20 is formed on the side 15a of the housing 15 of the projector 8 opposite to the driver's side door 2, in a orientation corresponding to the orientation of the image IR projected onto the surface 2a of the driver's side door 2. The housing 15 of the projector 8 is mounted on the vehicle C such that the side 15b opposite to the direction in which the first projection 13b protrudes faces the driver's side door 2, which projects the image IR. As shown in Figure 8, the projector 8 projects an image IL onto the interior surface 3a of the passenger side door 3. The marking 20 is formed on the side 15b of the projector 8 housing 15 opposite to the passenger door 3, in an orientation corresponding to the orientation of the image IL projected onto the surface 3a of the passenger door 3. The projector 8 housing 15 is mounted on the vehicle C such that the side 15a opposite to the direction from which the first projection 13b protrudes faces the passenger door 3, onto which the image IL is projected. The marking 20 may be formed, for example, as a sticker, or by painting or creating an uneven surface.

[0023] Furthermore, the housing 15 may be provided with a cover that covers the first opening 16. Figure 9 is a perspective view of a projector 8 located on the passenger side with a cover provided on the housing 15, as seen from the opposite side of the passenger door 3. Figure 10 is a perspective view of a projector 8 located on the passenger side with a cover provided on the housing 15, as seen from the passenger door 3 side. As shown in Figures 9 and 10, the housing 15 has a cover 21 that covers the first opening 16. The cover 21 is detachable from the housing 15. The cover 21 has an upper plate portion 21a, a side plate portion 21b extending downward from one end of the upper plate portion 21a, and a side plate portion 21c extending downward from the other end of the upper plate portion 21a. As shown in Figure 10, the side plate portion 21c is formed to cover the entire side of the first opening 16. On the other hand, as shown in Figure 9, the side plate portion 21b is formed to be shorter than the side plate portion 21c by the height of the first projection 13b, and a locking portion 21d is formed at its lower end to engage with the upper end of the first projection 13b.

[0024] The cover 21 is attached to the housing 15 such that the side plate portion 21b and the locking portion 21d face the first projection 13b. That is, as shown in Figures 9 and 10, in the case of a projector 8 located on the passenger side, the first projection 13b protrudes to the side 15b opposite to the passenger door 3, so the cover 21 is attached to the housing 15 such that the side plate portion 21b and the locking portion 21d face the side 15b. On the other hand, in the case of a projector 8 located on the driver's side, the first projection 13b protrudes to the side 15a opposite to the driver's door 2, so the cover 21 is attached to the housing 15 such that the side plate portion 21b and the locking portion 21d face the side 15a.

[0025] The cover may also be slidably attached to the upper case 15U of the housing 15. Figure 11 is a perspective view from the opposite side of the passenger door 3 of a configuration in which the cover is slidably attached to the upper case 15U of the projector 8 located on the passenger side. Figure 12 is a perspective view from the passenger door 3 side of a configuration in which the cover is slidably attached to the upper case 15U of the projector 8 located on the passenger side. As shown in Figures 11 and 12, the cover 22 is slidably attached to the upper case 15U. The cover 22 has an upper plate portion 22a, a side plate portion 22b extending downward from one end of the upper plate portion 22a, and a side plate portion 22c extending downward from the other end of the upper plate portion 22a.

[0026] As shown in Figure 11, the side plate portion 22b is formed to a length such that its lower end is close to the upper end of the first projection 13b. On the inside of the lower end of the side plate portion 22b, there is a locking portion (not shown) that engages with a groove 15Ub formed on the side surface 15b of the housing 15 on the upper case 15U side, and the locking portion is movable along the groove 15Ub. As shown in Figure 12, the side plate portion 22c is formed to the same length as the side plate portion 22b. As a result, the end of the first opening 16 on the side through which the first projection 13b does not penetrate is exposed, but the aforementioned protrusion 13e closes the exposed portion of the first opening 16, preventing foreign matter and external light from entering. On the inside of the lower end of the side plate portion 22c, there is a locking portion (not shown) that engages with a groove 15Ua formed on the side surface 15a of the housing 15 on the upper case 15U side, and the locking portion is movable along the groove 15Ua. With the above configuration, the cover 22 slides between a first position that covers the first opening 16 and a second position that exposes the first opening 16 and allows the first projection 13b to move. Figures 11 and 12 show the cover 22 in the first position. Although not shown in the illustration, when the cover 22 is in the second position, the entire first opening 16 is exposed. As a result, by moving the first projection 13b of the shank lens 13 from one end to the other end of the first opening 16, the shank lens 13 can be rotated approximately 180° around the optical axis, thereby reversing the orientation of the shank lens 13 in the left-right direction.

[0027] <Effects of the Embodiment> As described above, in the projector 8 of this embodiment, the housing 15 is configured to accommodate the pattern lens 13 with its orientation reversed in the left-right direction perpendicular to the optical axis and vertical direction. This allows the projector to be used with the pattern lens 13 oriented to one side in the left-right direction when projecting onto the interior of the left side of the vehicle C, and to be used with the pattern lens 13 oriented to the other side in the left-right direction when projecting onto the interior of the right side of the vehicle C. In this way, the projector 8 of the same product can be used on both the left and right sides of the interior of the vehicle C, thereby expanding the range of use of a single product.

[0028] Furthermore, in this embodiment in particular, by moving the first projection 13b from one end to the other end of the first opening 16, the handle lens 13 can be rotated approximately 180° around the optical axis, thereby reversing the orientation of the handle lens 13 in the left-right direction. Since the first projection 13b can be rotated without separating the housing 15 into the upper case 15U and the lower case 15L, the orientation of the handle lens 13 can be easily changed.

[0029] Furthermore, in this embodiment, markings 20 that mimic the pattern portion 12 of the pattern lens 13 are formed on both the left and right sides 15a and 15b of the housing 15, and the markings 20 are formed in an orientation corresponding to the orientation of the images IR and IL projected onto the interior of the vehicle C. As a result, the user can recognize the orientation of the projected image simply by looking at the markings 20, and can easily determine whether the pattern lens 13 (the orientation in which the first projection 13b protrudes) should be to the left or right.

[0030] Furthermore, in this embodiment, the housing 15 has a plurality of ribs 17a to 17f that rotatably support the side surface 13a of the handle lens 13 at multiple points, and the plurality of ribs 17a to 17f are provided at multiple locations in the direction of the optical axis. This makes it possible to easily rotate the handle lens 13 while maintaining the optical axis in the same direction.

[0031] Furthermore, in this embodiment, the first projection 13b of the handle lens 13 is positioned between the first surface 13c and the second surface 13d. This allows the user to stably rotate the handle lens 13 using the first projection 13b, thereby improving operability.

[0032] Furthermore, in this embodiment, the housing 15 has covers 21 and 22 that cover the first opening 16. Since the first opening 16 is a slit-shaped opening that is open in an angular range of approximately 180°, it remains open except for the portion through which the first projection 13b penetrates. According to this embodiment, by covering the first opening 16 with covers 21 and 22, it is possible to prevent foreign matter and external light from entering through the first opening 16.

[0033] Furthermore, in this embodiment, the cover 22 is slidably attached to the upper case 15U. This allows the first projection 13b to be moved within the first opening 16 without removing the cover 22, making it easy to change the orientation of the handle lens 13. Also, after determining the orientation of the handle lens 13, the cover 22 covers the first opening 16, preventing foreign matter and external light from entering through the first opening 16.

[0034] Furthermore, in this embodiment in particular, the housing 15 is attached to the vehicle C such that the sides 15a and 15b opposite to the direction in which the first projection 13b protrudes face the interior side onto which the image is projected. This prevents the first projection 13b protruding from the housing 15 from interfering with the interior onto which the image is projected.

[0035] <Variation> It should be noted that the present invention is not limited to the embodiments described above, and various modifications are possible without departing from its spirit and technical concept.

[0036] For example, instead of providing a slit-shaped first opening 16 to allow the handle lens 13 to rotate as in the embodiment, the upper case 15U and lower case 15L of the housing 15 may be separated to reverse the orientation of the handle lens 13 in the left-right direction. Figure 13 is a perspective view of the configuration of the projector 8 arranged on the passenger side according to a modified example, viewed from the opposite side of the passenger door 3. Figure 14 is a perspective view of the configuration of the projector 8 arranged on the passenger side according to a modified example, viewed from the passenger door 3 side. Figure 15 is a top view showing the configuration of the projector 8 with the upper case removed according to a modified example.

[0037] As shown in Figures 13 and 14, in the modified projector 8, the housing 15 has two second openings 23 formed by the upper case 15U and the lower case 15L on each of the side surfaces 15a and 15b in the left-right direction. In the example shown in Figures 13 and 14, the second openings 23 are formed by cutting out only the upper case 15U, but the second openings 23 may be formed by cutting out only the lower case 15L, or by cutting out both the upper case 15U and the lower case 15L.

[0038] As shown in Figures 13 and 15, the handle lens 13 has a second projection 13f that penetrates one of the two second openings 23 and protrudes to the outside of the upper case 15U, instead of the aforementioned first projection 13b. Also, as shown in Figures 14 and 15, the handle lens 13 has a third projection 13g that replaces the aforementioned convex portion 13e, and is inserted into the second opening 23 that the second projection 13f does not penetrate, and does not protrude to the outside of the upper case 15U. The second openings 23, the second projection 13f, and the third projection 13g are each formed to be approximately the same size. In the example shown in Figures 14 and 15, the tip of the third projection 13g is configured to be approximately flush with the side surface 15a of the housing 15, but the length of the third projection 13g is sufficient as long as at least a portion of it is inserted into the second opening 23. The configuration other than that is the same as in the embodiment described above.

[0039] The housing 15 of the projector 8 is mounted on the vehicle C such that the side opposite to the direction in which the second projection 13f protrudes faces the interior side onto which the IR and IL images are projected. That is, as shown in Figures 13 and 14, in the case of a projector 8 positioned on the passenger side, the second projection 13f protrudes on the side 15b opposite to the passenger door 3, so the projector 8 is mounted so that the side 15a of the housing 15 faces the passenger door 3. On the other hand, in the case of a projector 8 positioned on the driver's side, the second projection 13f protrudes on the side 15a opposite to the driver's door 2, so the projector 8 is mounted so that the side 15b of the housing 15 faces the driver's door 2.

[0040] According to this modified example, by separating the upper case 15U and the lower case 15L, and switching the second opening 23 through which the second projection 13f of the pattern lens 13 passes from one second opening 23 to the other, and then assembling the upper case 15U and the lower case 15L, the orientation of the pattern lens 13 can be reversed in the left-right direction. This allows the projector 8 of the same product to be used on both the left and right sides of the interior of the vehicle C, thereby expanding the range of use of a single product. In addition, the second opening 23 of the housing 15 through which the second projection 13f does not pass can be filled with the third projection 13g. This prevents foreign matter and external light from entering through the second opening 23 through which the second projection 13f does not pass. [Explanation of symbols]

[0041] 1. Windshield 2. Driver's side door 3. Passenger side door 4 handles 5. Instrument Panel 6. Glove box 7 Dashboard 8. Projector (vehicle projection device) 11 Light source 12. Design section 13 Patterned Lenses 13a side 13b 1st protrusion 13c page 1 13d 2nd side 13e protrusion 13f 2nd protrusion 13g 3rd protrusion 14 Projection lens 15 cabinets 15a side 15b Side 15L bottom case 15U Upper Case 15Ua groove 15Ub Groove 16. First opening 17a Rib 17b Rib 17c Rib 17d Rib 17e Rib 17f Rib 20 Markings 21 Cover 22 Cover 23. Second opening C Vehicle IL image IR image

Claims

1. A vehicle projection device installed inside a vehicle, A light source that emits light, A patterned lens having a patterned portion formed therein, which emits light corresponding to the patterned portion based on light incident from the light source, A projection lens that projects an image corresponding to the pattern onto the interior of the vehicle based on light incident from the pattern lens, The device comprises the light source, the pattern lens, and a housing that accommodates the projection lens. The aforementioned enclosure is The orientation of the aforementioned pattern lens is configured to be reversible and accommodated in the left-right direction perpendicular to the optical axis and the vertical direction. A vehicle projection device characterized by the following features.

2. The aforementioned enclosure is The upper case and It has a lower case and The above case is, The area facing the side surface of the aforementioned pattern lens has a slit-shaped first opening that opens in an angle range of approximately 180° around the optical axis, extending from one side to the other in the left-right direction. The aforementioned patterned lens is It has a first projection that penetrates the first opening and protrudes to the outside of the upper case, The first projection is rotatably housed in the housing such that it moves between one end and the other end of the first opening. The vehicle projection device according to claim 1, characterized in that it is a vehicle projection device.

3. The aforementioned enclosure is The upper case and The bottom case and It has two second openings formed by the upper case and the lower case on one side and the other side in the left-right direction, The aforementioned patterned lens is It has a second projection that penetrates one of the two second openings and protrudes to the outside of the upper case. The vehicle projection device according to claim 1, characterized in that it is a vehicle projection device.

4. The aforementioned patterned lens is The housing has a third projection which is inserted into the second opening of the housing that the second projection does not penetrate, and which does not protrude to the outside of the upper case. The vehicle projection device according to claim 3, characterized in that it is as described in the previous version.

5. The aforementioned enclosure is The left and right sides of the aforementioned side surface have markings that mimic the design portion, The aforementioned marking is, It is formed in an orientation corresponding to the orientation of the image projected onto the interior of the vehicle. The vehicle projection device according to claim 1, characterized in that it is a vehicle projection device.

6. The aforementioned enclosure is The aforementioned patterned lens has multiple ribs that rotatably support the side surface at multiple points, The aforementioned multiple ribs are Multiple locations in the optical axis direction are provided The vehicle projection device according to claim 2, characterized in that it is as described above.

7. The aforementioned patterned lens is The first surface located on the light source side, It has a second surface located on the opposite side of the first surface in the optical axis direction, on which the pattern portion is formed, The first projection is, Displaced between the first surface and the second surface The vehicle projection device according to feature 2.

8. The aforementioned enclosure is Having a cover that covers the first opening The vehicle projection device according to feature 2.

9. The aforementioned cover is It is slidably mounted on the upper case and slides between a first position that covers the first opening and a second position that exposes the first opening and allows the first projection to move. The vehicle projection device according to feature 8.

10. The aforementioned enclosure is The vehicle is mounted such that the side opposite to the direction in which the first or second projection protrudes faces the interior side onto which the image is projected. The vehicle projection device according to claim 2 or 3, characterized in that it is a vehicle projection device.

Citation Information

Patent Citations

  • Projector

    JP2023070359A