Vehicle lighting fixtures

The vehicular lamp addresses moiré interference by using plate materials with distinct light transmitting and non-transmitting parts of varying sizes and shapes, enhancing design quality and visibility.

JP7604962B2Active Publication Date: 2024-12-24ICHIKOH IND LTD
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Patent Information

Application Number
JP2021040634
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-03-12
Publication Date
2024-12-24
Estimated Expiration
2041-03-12

AI Technical Summary

Technical Problem

Vehicle lamps with semi-transparent parts featuring minute light transmitting dots experience moiré interference, leading to a decline in design quality and visibility of the light chamber configuration.

Method used

A vehicular lamp design incorporating first and second plate materials with specific light transmitting and non-transmitting parts, where the second plate's transmitting parts have larger areas and different shapes than the first, and the shortest distances between non-transmitting parts are longer, preventing moiré and enhancing design quality.

Benefits of technology

The design effectively suppresses moiré interference and maintains design quality by ensuring significant differences in light transmitting part areas and shapes, allowing for improved shading and visibility when the light source is on or off.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a lamp for a vehicle which can suppress the lowering of design performance caused by moire.SOLUTION: A lamp 1 for a vehicle comprises: a first plate material 10 having a plurality of light permeation parts allowing the permeation of light, and light non-permeation parts not allowing the permeation of light between and among the first light permeation parts; a second plate material 20 laminated on the first plate material 10, and having a plurality of light permeation parts allowing the permeation of light, and light non-permeation parts not allowing the permeation of light between and among the light permeation parts; and a light source LS for emitting light via the plurality of light permeation parts of the first plate material 10 and the plurality of light permeation parts of the second plate material 20. The plurality of light permeation parts of the second plate material 20 are set larger than the plurality of light permeation parts of the first plate material 10 in areas.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present invention relates to a vehicle lamp. [Background technology]

[0002] Conventionally, a decorative lighting device has been proposed in which a semi-transmitting portion, which is a plate material having light-transmitting portions such as tiny dots and other portions being non-light-transmitting portions, and a design portion, which is a plate material having an opening with a specific design shape, are laminated together, and light can be irradiated from behind them (see, for example, Patent Document 1). With this decorative lighting device, for example, when the light source is turned on, the user can recognize the design shape corresponding to the opening (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-6026 A Summary of the Invention [Problem to be solved by the invention]

[0004] Here, the applicant is researching the application of the decorative lighting device described above to vehicle lamps, and is particularly considering forming a light-transmitting portion in the shape of a minute dot for the design portion as well. This is because both of the two plate materials will have a light-transmitting portion in the shape of a minute dot, making it difficult to see the lamp chamber configuration when the light source is not lit, thereby improving the design.

[0005] However, in such vehicle lighting fixtures, tiny light-transmitting parts can interfere with each other, causing moire fringes, which makes it difficult to see the lamp chamber configuration and improves the design, but on the other hand, the moire fringes can degrade the design.

[0006] The present invention has been made to solve such conventional problems, and an object of the present invention is to provide a vehicle lamp that can suppress deterioration of design due to moire. [Means for solving the problem]

[0007] According to one aspect of the present disclosure A vehicle lamp includes a first plate having a plurality of first light-transmitting portions that transmit light and a first light-opaque portion between the first light-transmitting portions that does not transmit light, a second plate laminated on the first plate having a plurality of second light-transmitting portions that transmit light and a second light-opaque portion between the second light-transmitting portions that does not transmit light, and a light source that emits light through the plurality of first light-transmitting portions of the first plate and the plurality of second light-transmitting portions of the second plate, wherein the plurality of second light-transmitting portions have an area larger than that of the plurality of first light-transmitting portions. The light transmitting portion has a plurality of dot-shaped light transmitting portions each having a dot shape, and a plurality of irregular-shaped light transmitting portions each having a shape different from the dot shape. .

[0008] In addition, the vehicle lamp of the present invention is a vehicle lamp comprising: a first plate material having a plurality of first light opaque portions that do not transmit light and first light transmitting portions that transmit light between the first light opaque portions; a second plate material laminated to the first plate material and having a plurality of second light opaque portions that transmit light and second light transmitting portions that transmit light between the second light opaque portions; and a light source that emits light through the first light transmitting portions of the first plate material and the second light transmitting portions of the second plate material, wherein the shortest distance between the plurality of second light opaque portions is longer than the shortest distance between the plurality of first light opaque portions. Effect of the Invention

[0009] According to the present invention, it is possible to provide a vehicle lamp capable of suppressing deterioration of design due to moire. [Brief description of the drawings]

[0010] [Figure 1] 1 is a front view of a vehicle to which a vehicle lamp according to an embodiment of the present invention is applied; [Diagram 2] FIG. 2 is a front view showing one of the vehicular lamps shown in FIG. [Diagram 3] 3 is a cross-sectional view of the vehicle lamp shown in FIG. 2 taken along line III-III. [Figure 4] 4A and 4B are plan views of the first plate material shown in FIG. 3, where (a) shows an overall view and (b) shows a partially enlarged view. [Diagram 5] 4 is a plan view of the second plate material shown in FIG. 3, where (a) shows an overall view, (b) shows a first partially enlarged view, and (c) shows a second partially enlarged view. [Figure 6] FIG. 4 is a plan view for explaining the operation of the vehicle lamp according to the embodiment. [Figure 7] 5A and 5B are plan views of a first plate material according to a second embodiment, where (a) is an overall view and (b) is a partially enlarged view. [Figure 8] 5A, 5B, and 5C are plan views of a second plate material according to a second embodiment, where (a) shows an overall view, (b) shows a first partially enlarged view, and (c) shows a second partially enlarged view. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The present invention will be described below along with preferred embodiments. Note that the present invention is not limited to the embodiments shown below, and can be modified as appropriate within the scope of the present invention. In addition, in the embodiments shown below, some configurations are omitted from illustration and description, but it goes without saying that publicly known or well-known technologies are appropriately applied to the details of the omitted technologies within the scope of the contents described below.

[0012] Fig. 1 is a front view of a vehicle to which a vehicle lamp according to this embodiment is applied. As shown in Fig. 1, the vehicle lamp 1 according to this embodiment is provided, for example, in a front grill G between the headlights in front of the vehicle V. In this embodiment, the vehicle lamp 1 has, for example, a bracket shape when viewed from the front, and is arranged so that four of them are paired (symmetrically) on the left and right.

[0013] Fig. 2 is a front view showing one of the vehicular lamps 1 shown in Fig. 1, and Fig. 3 is a cross-sectional view taken along line III-III of the vehicular lamp 1 shown in Fig. 2. Note that Fig. 2 omits the illustration of some components such as a case (see symbol Ca) described later.

[0014] 2 and 3, the vehicle lamp 1 includes a substrate PCB on which a light source LS is mounted, a reflector R, a shield S, an inner lens IL, a first plate member 10, a second plate member 20, an outer lens OL, and a case Ca. The substrate PCB, the reflector R, the shield S, and the inner lens IL are housed in the case Ca.

[0015] As shown in Figures 2 and 3, the substrate PCB is arranged so that its normal direction is toward the side of the vehicle (including a diagonal side slightly facing upward or downward). The light source LS mounted on the substrate PCB is also arranged so that its optical axis faces toward the side (particularly toward the inside of the vehicle), and is configured to emit light toward the inside of the vehicle. The reflector R has an aluminum or silver-based reflective surface formed by deposition, painting, or the like. The reflective surface is formed by an ellipsoid of revolution or a free-form surface so as to reflect the light from the light source LS toward the front of the vehicle.

[0016] The shield S is for guiding the light reflected by the reflector R to the inner lens IL. This shield S is provided on both the inside and outside of the inner lens IL. In addition, the surface of the shield S facing the inner lens IL is formed of, for example, white color. Therefore, the shield S guides the light reflected by the reflector R to the inner lens IL while reflecting it on its inner surface. Note that the shield S is not limited to white color, but may be formed of black color to suppress the light reflected by the reflector R from leaking out to the outside.

[0017] The inner lens IL is provided on the vehicle front side relative to the reflector R, and functions as a diffusion plate that receives and diffuses the light guided by the shield S. The inner lens IL is formed of, for example, a milky white color.

[0018] The first plate 10, the second plate 20, and the outer lens OL are stacked in contact with each other and are provided on the vehicle front side of the inner lens IL. The first plate 10, the second plate 20, and the outer lens OL are arranged so as to close the open portion of the case Ca. The light diffused by the inner lens IL passes through the second plate 20, the first plate 10, and the outer lens OL in this order and is emitted forward of the vehicle.

[0019] The first plate 10 and the second plate 20 have a light-transmitting portion and a light-non-transmitting portion as described below. Light that reaches the first plate 10 and the second plate 20 from the light source LS via the inner lens IL reaches the outer lens OL via the light-transmitting portions of the first plate 10 and the second plate 20. The outer lens OL is made of, for example, a transparent resin, and emits the light that has passed through the light-transmitting portions of the first plate 10 and the second plate 20 forward of the vehicle.

[0020] FIG. 4 is a plan view of the first plate material 10 shown in FIG. 3, where (a) shows an overall view and (b) shows a partial enlarged view. As shown in FIG. 4(a), the first plate material 10 has a bracket shape when viewed from above. As shown in FIG. 4(b), this first plate material 10 is entirely made of an opaque plate material that does not transmit light, and a plurality of dot-shaped through holes (e.g., 1.0 mm 2 ) are formed in this opaque plate material. 2 The area where the through holes are formed becomes a light transmitting section (first light transmitting section) 11. On the other hand, the area where the through holes are not formed (i.e., between the light transmitting sections 11) becomes a light non-transmitting section (first light non-transmitting section) 12 that does not transmit light.

[0021] The light-transmitting portion 11 is not limited to being formed by through holes, and may be formed by filling through holes with a light-transmitting resin, for example. Furthermore, in the above, the first plate material 10 is configured by providing through holes in an impermeable plate material, but the present invention is not limited to this, and may be formed by printing a mesh-like impermeable paint or the like on a light-transmitting plate material that transmits light.

[0022] FIG. 5 is a plan view of the second plate 20 shown in FIG. 3, where (a) shows an overall view, (b) shows a first partially enlarged view, and (c) shows a second partially enlarged view. As shown in FIG. 5(a), the second plate 20 also has a bracket shape when viewed from above. In particular, the outer shape of the second plate 20 coincides with the outer shape of the first plate 10. The second plate 20, like the first plate 10, is entirely made of an opaque plate material that does not transmit light, and a plurality of through holes are formed in this opaque plate material. In this embodiment, the second plate 20 is divided into three areas: a dot portion 20a, a line portion 20b, and a large portion 20c.

[0023] As shown in Fig. 5(b), the dot portion 20a is an area where a plurality of dot-shaped through holes are formed in the non-transmissive plate material. The area where the through holes are formed becomes the light-transmitting portion (second light-transmitting portion, dot-shaped light-transmitting portion) 21a. On the other hand, the area where the through holes are not formed (i.e., between the light-transmitting portions 21a) becomes the light-opaque portion (second light-opaque portion) 22a that does not transmit light.

[0024] As shown in Fig. 5(c), the line portion 20b is an area in which a plurality of line-shaped through holes (one example of a shape different from a dot shape) are formed in the non-transparent plate material. The portion in which the through holes are formed becomes the light-transmitting portion (second light-transmitting portion, irregularly shaped light-transmitting portion) 21b. On the other hand, the portion in which the through holes are not formed (i.e., between the light-transmitting portions 21b) becomes the light-opaque portion (second light-opaque portion) 22b that does not transmit light.

[0025] The light-transmitting portions 21a and 21b are not limited to those formed by through holes, and may be, for example, through holes filled with a light-transmitting resin. Furthermore, in the above, the second plate 20 is configured by providing through holes in an impermeable plate, but is not limited thereto, and may be a light-transmitting plate on which an impermeable paint or the like that blocks light is printed in a mesh pattern or the like.

[0026] In this embodiment, each of the plurality of light transmitting portions 21a, 21b of the second plate member 20 has an area larger than each of the plurality of light transmitting portions 11 of the first plate member 10. Preferably, each of the plurality of light transmitting portions 21a, 21b has an area larger than each of the plurality of light transmitting portions 11 of the first plate member 10 by 9 times or more.

[0027] Furthermore, the area of ​​each of the plurality of light transmitting portions 21a, 21b of the second plate member 20 is less than 150 times, preferably less than 50 times, and more preferably less than 20 times that of each of the plurality of light transmitting portions 11 of the first plate member 10.

[0028] The area of ​​each light transmitting portion 21b in the line portion 20b is set to be larger than the area of ​​each light transmitting portion 21a in the dot portion 20a.

[0029] The large portion 20c is an area in which through holes having areas larger than the multiple dot-shaped light transmitting portions 21a and the multiple line-shaped light transmitting portions 21b are formed. The area in which the through holes are formed becomes the light transmitting portion (large light transmitting portion) 21c (see FIG. 5(a)). The area of ​​this light transmitting portion 21c is 150 times or more larger than each of the multiple light transmitting portions 11 of the first plate member 10.

[0030] Next, the operation of the vehicle lamp 1 according to this embodiment will be described. Fig. 6 is a plan view for explaining the operation of the vehicle lamp 1 according to this embodiment. Fig. 6 shows plate materials A to C, and plate materials A and B have through holes of the same size. On the other hand, plate material C has a through hole 9 times larger than plate materials A and B.

[0031] When plate materials A and B, which have the same area of ​​through holes, are stacked, moire fringes are generated, as shown in Figure 6. In contrast, when plate material C, which has a through hole nine times larger than plate material A, is stacked, moire fringes are prevented, as shown in Figure 6.

[0032] Therefore, when the area of ​​the light-transmitting portions 21a, 21b of the second plate material 20 is made larger than the area of ​​the light-transmitting portion 11 of the first plate material 10, as in the above embodiment, the occurrence of moire is suppressed more than when plate material A and plate material B are overlapped, and when the area of ​​the former is made 9 times or more larger than the area of ​​the latter, the occurrence of moire is extremely suppressed.

[0033] 5(a), the light transmitting portions 21a, 21b of the second plate 20 are different in shape, one being dot-shaped and the other being line-shaped. Therefore, when the light source LS is turned on, there is a difference in the appearance of the light passing through the two light transmitting portions 21a, 21b, which is expressed as a difference in shading.

[0034] In addition, since the large portion 20c of the second plate member 20 has the light transmitting portion 21c formed therein, which has a larger area than the dot-shaped light transmitting portion 21a and the line-shaped light transmitting portion 21b, it is also possible to express three levels of shading.

[0035] In addition, although it depends on the area of ​​the light-transmitting portion 11 of the first plate material 10, the area of ​​the light-transmitting portions 21a, 21b of the second plate material 20 is less than 150 times, preferably less than 50 times, and more preferably less than 20 times the area of ​​the light-transmitting portion 11 of the first plate material 10, so that it is difficult to see the inside of the lamp chamber from the outside when the light source LS is not lit, thereby preventing a decrease in design.

[0036] In this way, according to the vehicle lamp 1 of this embodiment, the multiple light-transmitting portions 21a, 21b have a larger area than the multiple light-transmitting portions 11, so that it is possible to prevent the area of ​​the light-transmitting portions 11, 21a, 21b from becoming the same, which would make moire more likely to occur, and it is possible to provide a vehicle lamp 1 that can prevent deterioration of design due to moire.

[0037] Furthermore, since the areas of the multiple light-transmitting portions 21a, 21b are made nine times larger than the areas of the multiple light-transmitting portions 11, the areas of the light-transmitting portions 11 and the light-transmitting portions 21a, 21b differ greatly, and the occurrence of moire can be extremely suppressed.

[0038] In addition, since the light transmitting portions 21a and 21b have a plurality of light transmitting portions 21a in a dot shape and a plurality of light transmitting portions 21b formed in a line shape different from the dot shape, the shape patterns through which light passes can be made different between the light transmitting portions 21a and 21b, thereby expressing a difference in shading between the two. Therefore, the design can be improved.

[0039] Next, a vehicle lamp according to a second embodiment will be described. The vehicle lamp according to the second embodiment is similar to that of the first embodiment, but has a partially different configuration. The differences from the first embodiment will be described below.

[0040] The vehicle lamp 1 according to the second embodiment includes a first plate member 30 and a second plate member 40 which are different from those in the first embodiment.

[0041] FIG. 7 is a plan view of the first plate material 30 according to the second embodiment, where (a) shows an overall view and (b) shows a partially enlarged view. As shown in FIG. 7(a), the first plate material 30 has a bracket shape in plan view. As shown in FIG. 7(b), the first plate material 30 is entirely made of a light-transmitting plate material. The first plate material 30 is printed with a light-transmitting opaque paint or the like in the form of multiple dots on the light-transmitting plate material. The areas where the opaque paint or the like is printed become light-transmitting parts (first light-transmitting parts) 31. On the other hand, the areas where the opaque paint or the like is not printed (i.e., between the light-transmitting parts 31) become light-transmitting parts (first light-transmitting parts) 32 that transmit light.

[0042] The first plate material 30 may be formed by gluing together a transmissive plate material that transmits light and an opaque plate material that does not transmit light, and then partially removing the opaque material so that dot-shaped light-opaque portions 31 remain.

[0043] FIG. 8 is a plan view of the second plate 40 according to the second embodiment, where (a) shows an overall view, (b) shows a first partially enlarged view, and (c) shows a second partially enlarged view. As shown in FIG. 8(a), the second plate 40 also has a bracket shape when viewed from above. In particular, the outer shape of the second plate 40 coincides with the outer shape of the first plate 30. The second plate 40, like the first plate 30, is entirely made of a light-transmitting plate material, and a light-opaque paint or the like is printed on the light-opaque plate material. In the second embodiment, the second plate 40 is divided into three areas: a dot portion 40a, a line portion 40b, and a large portion 40c.

[0044] As shown in Fig. 8(b), the dot portion 40a is an area where a plurality of dot shapes that do not transmit light are printed on the transparent plate material. The dot-shaped printed areas become light-opaque areas (second light-opaque areas, dot-shaped light-opaque areas) 41a. On the other hand, the areas where the dot shapes are not printed (i.e., between the light-opaque areas 41a) become light-transmitting areas (second light-transmitting areas) 42a that transmit light.

[0045] As shown in Fig. 8(c), the line portion 40b is an area where a plurality of line shapes (an example of a shape different from a dot shape) that do not transmit light are printed on the transparent plate material. The printed areas of the line shapes become light-opaque areas (second light-opaque areas, irregularly shaped light-opaque areas) 41b. On the other hand, the areas where the line shapes are not printed (i.e., between the light-opaque areas 41b) become light-transmitting areas (second light-transmitting areas) 42b that transmit light.

[0046] Similarly to the first plate 30, the second plate 40 may be formed by laminating a transmissive plate material and an impermeable plate material, with the impermeable member being partially removed.

[0047] In this embodiment, the shortest distances L2, L3 (see FIGS. 8(b) and 8(c)) between the multiple light-opaque portions 41a, 41b of the second plate member 40 are longer than the shortest distance L1 (see FIG. 7(b): for example, 1 mm or less) between the multiple light-opaque portions 31 of the first plate member 30. Preferably, the shortest distances L2, L3 between the multiple light-opaque portions 41a, 41b are each three or more times longer than the shortest distance L1 between the multiple light-opaque portions 31 of the first plate member 10.

[0048] In addition, the shortest distances L2, L3 between the multiple light-opaque portions 41a, 41b of the second plate material 40 are each less than 150 times, preferably less than 50 times, and more preferably less than 20 times the shortest distance L1 between the multiple light-transmitting portions 11 of the first plate material 10.

[0049] The shortest distance L3 between the light non-transmitting portions 41b in the line portion 40b is set to be larger than the shortest distance L2 between the light non-transmitting portions 41a in the dot portion 40a.

[0050] The large portion 40c (see FIG. 8(a)) is an area in which a large through hole is formed. The portion in which the through hole is formed becomes a light-transmitting portion (large light-transmitting portion) 41c. In this light-transmitting portion 41c, the shortest distance L4 within the light-transmitting portion 41c is 150 times or more longer than the shortest distance L1 between the multiple light-non-transmitting portions 31 of the first plate member 30.

[0051] Next, the operation of the vehicle lamp 1 according to the second embodiment will be described. First, when the shortest distances L2, L3 between the light non-transmitting parts 41a, 41b of the second plate 40 are made larger than the shortest distance L1 between the light non-transmitting parts 31 of the first plate 30, the occurrence of moire is suppressed as in the first embodiment, and when the former shortest distances L2, L3 are made three or more times larger than the latter shortest distance L1, the occurrence of moire is extremely suppressed.

[0052] In addition, the light non-transmitting portions 41a, 41b of the second plate 40 are different in shape, one being dot-shaped and the other being line-shaped. Therefore, when the light source LS is turned on, there is a difference in the appearance of light passing through the light transmitting portions 42a, 42b between the light non-transmitting portions 41a, 41b, which is expressed as a difference in shading.

[0053] In addition, since the large portion 40c of the second plate member 40 has a light-transmitting portion 41c whose shortest distance L4 is longer than the shortest distances L2, L3 between the light-impermeable portions 41a, 41b, it is also possible to express three levels of shading.

[0054] In addition, depending on the shortest distance L1 between the light-opaque portions 31 of the first plate material 30, the shortest distances L2, L3 between the light-opaque portions 41a, 41b of the second plate material 40 are less than 150 times, preferably less than 50 times, and more preferably less than 20 times the shortest distance L1, making it difficult to see the inside of the lamp chamber from the outside when the light source LS is not lit, thereby preventing a decrease in design.

[0055] In this way, according to the vehicle lamp 1 of the second embodiment, the shortest distances L2, L3 between the multiple light-opaque portions 41a, 41b are longer than the shortest distance L1 between the multiple light-opaque portions 31. This prevents the shortest distances L1-L3 between the two light-opaque portions 31, 41a, 41b from becoming close due to the shortest distances L1-L3 being the same, making it possible to provide a vehicle lamp 1 that can prevent deterioration of design due to moire.

[0056] Furthermore, the shortest distances L2, L3 between the multiple light-opaque parts 41a, 41b are more than three times longer than the shortest distance L1 between the multiple light-opaque parts 31. Therefore, by providing a large difference between the shortest distances L1 to L3 between the two, the areas of the two light-transmitting parts 32, 42a, 42b are made to differ greatly, and the occurrence of moire can be greatly suppressed.

[0057] In addition, the light-opaque parts 41a and 41b have a plurality of light-opaque parts 41a in a dot shape and a plurality of light-opaque parts 41b formed in a line shape different from the dot shape, so that by making the light-opaque parts 41a and 41b different from each other, the shapes of the light-transmitting parts 42a and 42b are also made different, and the light-transmitting shape patterns are made different to express the difference in shading between the two. Therefore, the design can be improved.

[0058] Although the present invention has been described above based on the embodiments, the present invention is not limited to the above-mentioned embodiments, and modifications may be made and known or well-known technologies may be combined without departing from the spirit of the present invention. Furthermore, technologies from the embodiments may be combined to the extent possible.

[0059] In the first embodiment, the dot-shaped light transmitting portions 11, 21a are arranged regularly, but they do not have to be arranged regularly. In the first embodiment, the longitudinal direction of the line-shaped light transmitting portions 21b is aligned in the vehicle inner side (inner side of the parentheses), but this is not limiting and the longitudinal direction does not have to be aligned regularly.

[0060] In addition, all of the light transmitting portions 11 of the first plate member 10 have the same area, but this is not particularly limited, and the areas do not have to be all the same. In this case, the average or median of the areas of the light transmitting portions 11 is used as a reference, and the largest and smallest areas may be within 50% to 150%, etc. of the reference value. The same applies to the light transmitting portions 21a of the second plate member 20.

[0061] In addition, when the areas of the multiple light transmitting portions 21a, 21b of the second plate material 20 are not uniform, the average value or median value may be larger, preferably 9 times or more larger, than the areas of the multiple light transmitting portions 11 of the first plate material 10. Similarly, when the areas of the multiple light transmitting portions 11 of the first plate material 10 are not uniform, the areas of the multiple light transmitting portions 21a, 21b of the second plate material 20 may be larger, preferably 9 times or more larger, than the average value or median value of the areas of the multiple light transmitting portions 11 of the first plate material 10.

[0062] Furthermore, the above contents are the same in the second embodiment. The dot-shaped light non-transmitting parts 31, 41a may be arranged irregularly, and the linear light non-transmitting parts 41b may not be uniform in their longitudinal direction toward the inside of the vehicle. The shortest distance between the multiple light non-transmitting parts 31, 41a, 41b may not be uniform, and if the shortest distance is not uniform, it is sufficient that the shortest distance is within 50% to 150% of a reference value. If the shortest distance is not uniform, the average value or median value of the shortest distance is adopted, and it is sufficient that this is longer (three times or more).

[0063] In addition, in the vehicle lamp 1 according to this embodiment, the first plate material 10 and the second plate material 20 are stacked in a contacting state, but this is not limited thereto, and the plates may be stacked in a spaced-apart state with other components interposed therebetween or with an air gap therebetween.

[0064] Furthermore, the light-transmitting portions 21a and 21b shown in Fig. 5 and the light-opaque portions 41a and 41b shown in Fig. 8 can be arranged to have a specific design shape, allowing a viewer to visually recognize a specific design. For example, by arranging the light-transmitting portions 21a to have a rough arrow shape, the arrow shape can be visually recognized when the light source LS is turned on.

[0065] In addition, the vehicle lamp 1 according to this embodiment includes a light source LS, a reflector R, a shield S, an inner lens IL, etc., as shown in FIG. 3, but is not limited to this and may have other configurations as long as it can uniformly irradiate the light-emitting part as a design feature. [Explanation of symbols]

[0066] 1: Vehicle lighting fixtures 10: 1st plate material 11: Light transmitting part (first light transmitting part) 12: Light-opaque section (first light-opaque section) 20:Second plate material 21a: light transmitting portion (second light transmitting portion, dot-shaped light transmitting portion) 21b: Light transmitting part (second light transmitting part, irregularly shaped light transmitting part) 22a, 22b: Light-opaque section (second light-opaque section) 30: 1st plate material 31: Light-opaque section (first light-opaque section) 32: Light transmitting part (first light transmitting part) 40:Second plate material 41a: light-opaque portion (second light-opaque portion, dot-shaped light-opaque portion) 41b: Light-opaque section (second light-opaque section, irregularly shaped light-opaque section) 42a, 42b: Light transmitting section (second light transmitting section) L1~L4: Shortest distance LS: Light source

Claims

1. a first plate having a plurality of first light transmitting portions that transmit light and a first light non-transmitting portion between the plurality of first light transmitting portions that does not transmit light; a second plate member laminated on the first plate member and having a plurality of second light transmitting portions that transmit light and second light non-transmitting portions between the second light transmitting portions that do not transmit light; a light source that emits light through the plurality of first light transmitting portions of the first plate member and the plurality of second light transmitting portions of the second plate member, The second light transmitting portions have a larger area than the first light transmitting portions, and include a plurality of dot-shaped light transmitting portions each having a dot shape, and a plurality of irregular-shaped light transmitting portions each having a shape different from the dot shape. A vehicle lamp characterized by the above.

2. The second light transmitting portions have areas nine times or more larger than the areas of the first light transmitting portions.

2. The vehicle lamp according to claim 1.

3. a first plate having a plurality of first light non-transmitting portions that do not transmit light and a first light transmitting portion that transmits light between the plurality of first light non-transmitting portions; a second plate material laminated on the first plate material, the second plate material having a plurality of second light-opaque portions that do not transmit light and second light-transmitting portions that transmit light between the second light-opaque portions; a light source that emits light through the first light transmitting portion of the first plate member and the second light transmitting portion of the second plate member, The shortest distance between the plurality of second light-opaque portions is longer than the shortest distance between the plurality of first light-opaque portions. A vehicle lamp characterized by the above.

4. The shortest distance between the second light-opaque portions of the second plate is three times or more longer than the shortest distance between the first light-opaque portions of the first plate.

4. The vehicle lamp according to claim 3.

5. The plurality of second light-opaque portions include a plurality of dot-shaped light-opaque portions having a dot shape, and a plurality of irregular-shaped light-opaque portions formed in a shape different from the dot shape.

5. A vehicle lamp according to claim 3 or 4.

Citation Information

Patent Citations

  • Light emitting device

    JP2008243794A

  • Decorative lighting device

    JP2018006026A