Vehicular lighting fixture

Abstract

To provide a vehicular lighting fixture whose design can be enhanced when it is lit, and when it is unlit.SOLUTION: A vehicular lighting fixture (100) comprises a light source part (10) for emitting light, a light transmitting part (20) for transmitting the light, and a light blocking layer (40) formed on the light transmitting part (20). The light blocking layer (40) comprises a first light blocking region and a second light blocking region having different colors. A plurality of opening parts (40a) are formed in the light blocking layer (40). The opening parts (40a) have different opening ratios between a first opening region and a second opening region.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] Conventionally, vehicle lamps such as headlights and taillights have been proposed that use light-emitting elements such as light-emitting diodes (LEDs) as light sources. Since these vehicle lamps constitute a part of the vehicle's exterior, they are required to have high design quality in various external shapes and lighting conditions. In recent years, the demand for design quality in vehicle lamps has been increasing year by year, and there is a demand for them to express not only linear designs but also a wide variety of planar designs (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-096462 A [Patent Document 2] Patent Publication No. 2021-005496 Summary of the Invention [Problem to be solved by the invention]

[0004] However, such conventional vehicle lamps have limitations in the design expressions that are possible when the lamp is turned on and off, making it difficult to express more complex and diverse designs.

[0005] SUMMARY OF THE PRESENT DISCLOSURE ... The present invention has been made in consideration of the above-mentioned problems of the conventional lamp, and has an object to provide a vehicle lamp that can improve the design when the lamp is lit and when the lamp is not lit. [Means for solving the problem]

[0006] In order to solve the above problems, the vehicle lamp of the present invention comprises a light source unit that irradiates light, a light-transmitting unit that transmits the light, and a light-shielding layer formed on the light-transmitting unit, the light-shielding layer having first and second light-shielding areas of different colors, a plurality of openings formed in the light-shielding layer, and the openings have different aperture ratios in the first opening area and the second opening area.

[0007] In such a vehicle lamp of the present invention, the first shading area and the second shading area have different colors, and the first opening area and the second opening area have different opening rates, which makes it possible to improve the design when the lamp is lit and when it is not lit.

[0008] In addition, in one aspect of the present invention, a first design is formed by the first opening area and the second opening area, a second design is formed by the first shading area and the second shading area, and the first design and the second design have corresponding shapes.

[0009] In addition, in one aspect of the present invention, a first design is formed by the first opening area and the second opening area, a second design is formed by the first shading area and the second shading area, and the first design and the second design have different shapes.

[0010] In one aspect of the present invention, the opening ratio of the first opening region and the second opening region is in the range of 0% to 50%.

[0011] In addition, in one aspect of the present invention, the light blocking layer is formed on a light exit surface of the light transmitting portion.

[0012] In addition, in one aspect of the present invention, the light blocking layer is formed on a light incident surface of the light transmitting portion.

[0013] In one aspect of the invention, the light transmitting portion is a light guide plate that receives the light from one end face, reflects the light on a back face, and emits the light from a light exit face.

[0014] In one aspect of the present invention, the light transmitting portion is an inner lens into which the light enters from a light incident surface on the rear side and which emits the light from a light exit surface on the front side. Effect of the Invention

[0015] The present invention can provide a vehicle lamp that can improve the design when the lamp is lit and when it is not lit. [Brief description of the drawings]

[0016] [Figure 1] 1 is a schematic cross-sectional view showing a configuration of a vehicle lamp 100 according to a first embodiment. [Diagram 2] 2A to 2C are schematic diagrams showing examples of design patterns of the light-shielding layer 40 according to the first embodiment. [Diagram 3] 3A and 3B are schematic diagrams showing a case where a plurality of patterns of the light-shielding layer 40 shown in FIG. 2 are arranged, with FIG. 3A showing how it appears when not lit, and FIG. 3B showing how it appears when lit. [Figure 4] 11A to 11C are schematic diagrams showing examples of design patterns of a light-shielding layer 40 according to a second embodiment. [Diagram 5] 5A and 5B are schematic diagrams showing the case where the pattern of the light-shielding layer 40 shown in FIG. 4 is used in a front grille, where FIG. 5A shows the overall appearance when the light is not lit, FIG. 5B shows the overall appearance when the light is lit, FIG. 5C shows the appearance of individual patterns when the light is not lit, and FIG. 5D shows the appearance of individual patterns when the light is lit. [Figure 6] 13A to 13C are schematic diagrams showing examples of design patterns of a light-shielding layer 40 according to a third embodiment. [Figure 7] 7A and 7B are schematic diagrams showing the case where the pattern of the light-shielding layer 40 shown in FIG. 6 is used in a front grille, where FIG. 7(a) shows the overall appearance when the light is not lit, and FIG. 7(b) shows the overall appearance when the light is lit. [Figure 8] FIG. 11 is a schematic cross-sectional view showing a configuration of a vehicle lamp 100 according to a fourth embodiment. [Figure 9] FIG. 11 is a schematic cross-sectional view showing a configuration of a vehicle lamp 100 according to a fifth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] (First embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The same or equivalent components, members, and processes shown in each drawing are given the same reference numerals, and duplicated descriptions are omitted as appropriate. FIG. 1 is a schematic cross-sectional view showing the configuration of a vehicle lamp 100 according to this embodiment. As shown in FIG. 1, the vehicle lamp 100 of this embodiment includes a light source unit 10, a light transmission unit 20, an uneven portion 30, a light-shielding layer 40, an outer lens 50, and a housing unit 60. In addition, a plurality of openings 40a are formed in the light-shielding layer 40. In FIG. 1, an arrow L drawn from the inside of the light transmission unit 20 to the outside typically shows the path of light that is guided through the light transmission unit 20 from the light source unit 10 and irradiated.

[0018] The light source unit 10 is a part that emits light of a predetermined wavelength in response to power and a control signal supplied from the outside. The specific configuration of the light source unit 10 is not limited, but a light emitting element such as a light emitting diode can be used. The light source unit 10 may also include a light guiding member, and the light from the light emitting diode may be guided within the light guiding member to irradiate the light in a planar or linear manner.

[0019] The light guide member is an optical member that is made of a material that transmits light, guides light along the extension direction, and irradiates the guided light from the side. A light entrance portion is provided at one end of the light guide member, and a light emitting element is arranged opposite the light entrance portion. The light guide member has uneven steps formed along the side, and light guided inside is reflected by the uneven steps and irradiated from the side to the outside of the light guide member. The light source unit 10 shown in FIG. 1 uses a rod-shaped light guide member that is extended in a direction perpendicular to the paper surface, and the rod-shaped light guide member is arranged opposite one end face of the light transmission unit 20, and light is guided inside the light transmission unit 20. In the example shown in FIG. 1, a light pipe with a substantially cylindrical shape is shown as the light guide member, but it may be a plate shape, and the specific shape is not limited.

[0020] The light transmitting section 20 is an optical member that is made of a material that transmits the light emitted from the light source section 10 and emits the light from the light source section 10 from the light exit surface toward the outer lens 50. In FIG. 1, the light transmitting section 20 is shown as a light guide plate that receives light from one end face, reflects the light on the back face, and emits the light from the light exit surface. In addition, a light shielding layer 40 is formed on the light exit surface on the front side of the light transmitting section 20, and an uneven section 30 is provided on the back side. In FIG. 1, an example of a curved shape is shown as the light transmitting section 20, but the shape is not limited and may be a flat shape or a polygonal shape.

[0021] The uneven portion 30 is an optical member provided on the back side of the light transmitting portion 20 and irradiates the light propagating through the light transmitting portion 20, which is a light guide plate, toward the outer lens 50. The specific shape and pitch of the uneven portion 30 are not limited, and the uneven portion 30 is formed with a required inclination and size according to the shape of the light transmitting portion 20 and the desired light distribution characteristics. Although FIG. 1 shows an example in which the uneven portion 30 is integrated with the light transmitting portion 20, the uneven portion 30 may be configured as a separate body and disposed on the back side of the light transmitting portion 20. In this embodiment, the uneven portion 30 reflects a part of the light propagating through the light transmitting portion 20 and irradiates it toward the outer lens 50.

[0022] The light-shielding layer 40 is a portion formed in the light-transmitting portion 20 and blocks at least a portion of the light from the light source portion 10. Here, blocking a portion of the light means that a predetermined proportion of the light that reaches the light-shielding layer 40 is blocked, and includes the case where a certain proportion of the light is transmitted. However, when the difference in expression between the design when the light is turned on and when the light is not turned on is large, it is preferable to block most of the light. In addition, the light-shielding layer 40 is divided into a plurality of regions as described below, and the colors in each region are different. Here, the different colors of the light-shielding layer 40 include not only different hues but also different shades and brightness of the colors, including a black and white gray scale. In addition, a plurality of openings 40a are formed in the light-shielding layer 40. FIG. 1 shows an example in which the light-shielding layer 40 is formed on the front surface (light exit surface) of the light-transmitting portion 20. The material constituting the light-shielding layer 40 and the method of forming the light-shielding layer 40 are not limited, and the light-shielding layer 40 may be patterned by applying a dye material using a printing technique or a painting technique, or may be patterned by forming a film of a metal material using a deposition technique or a plating technique.

[0023] The openings 40a are a plurality of openings provided in the light-shielding layer 40, and are portions that transmit light from the light source unit 10. As described later, the light-shielding layer 40 has a different pattern of openings 40a in a plurality of regions, and the aperture ratio in each region is different. Here, the regions of the light-shielding layer 40 with different colors and the regions with different aperture ratios of the openings 40a may be the same or different. The light-shielding layer 40 and the pattern of openings 40a will be described in detail later.

[0024] The outer lens 50 is a member made of a material that transmits at least a part of light. The outer lens 50 is provided so as to cover the front opening of the housing part 60, the periphery of which is fixed, and is an optical member that extracts light from the light transmitting part 20 to the outside of the vehicle lamp 100. Examples of materials that constitute the outer lens 50 include glass, acrylic resin, epoxy resin, polycarbonate, etc., and polycarbonate is most preferable from the viewpoints of weight reduction, impact resistance, weather resistance, translucency, etc.

[0025] The housing 60 is a housing portion that holds each component of the vehicle lamp 100, and is made of a light-blocking material that blocks light. A front opening is formed in the housing 60, and an outer lens 50 is provided to cover the front opening. The housing 60 may be provided with a connector portion, a harness, internal wiring, and the like (not shown) that transmits power supplied from the outside of the vehicle lamp 100 to the inside.

[0026] In the vehicle lamp 100 shown in Fig. 1, light emitted by the light source unit 10 enters the light transmitting unit 20 from an end face, and propagates in an in-plane direction while repeatedly reflecting inside the light transmitting unit 20. A part of the light propagating inside the light transmitting unit 20 is reflected by the uneven portion 30 provided on the back side, and is irradiated in the direction of the outer lens 50. At this time, a part of the irradiated light is blocked by the light blocking layer 40, and the light that has passed through the opening 40a is transmitted through the outer lens 50 and is irradiated in the light emission direction of the vehicle lamp 100.

[0027] FIG. 2 is a schematic diagram showing an example of a design pattern of the light-shielding layer 40 according to this embodiment. As shown in FIG. 2, the light-shielding layer 40 has a plurality of light-shielding regions 41-44, and openings 41a-44a of different sizes are formed. In FIG. 2, the light-shielding regions 41-44 and the openings 41a-44a are shown typically, and are shown on a scale different from the actual size. The light-shielding regions 41-44 are formed by the light-shielding layer 40 having different colors, and a light-shielding design is formed by combining the light-shielding regions 41-44. Here, the light-shielding design corresponds to the second design in the present invention.

[0028] The difference in color in the light-shielding layer 40 in the light-shielding regions 41 to 44 includes the case where the colors are different, the case where the shades are different, the case where the brightness is different, and the case where there is no color and the shades are different in gray scale. In the example shown in Fig. 2, the difference in color is shown by the shades, and the case where the light-shielding region 41 is the darkest, the lightest, and the light-shielding regions 42 and 43 are intermediate colors is shown. In the light-shielding design as shown in Fig. 2, the colors of the light-shielding regions 41 to 44 are the same, and the colors are changed by the shades or brightness, so that a design can be created in which a three-dimensional impression is expressed by the difference in color.

[0029] As shown in FIG. 2, the openings 41a-44a are formed in a pattern to form an opening region, and the opening ratio (total opening area / area of ​​the region) is different in each region. Here, an example is shown in which circular openings of different sizes are arranged at equal intervals as the openings 41a-44a, but they may be in other shapes such as stripes, and may be arranged at different intervals. In addition, the openings 41a-44a may be of the same size, and the interval or density of the arrangement may be changed to make the opening ratio in each opening region different. The opening design is formed by a combination of the opening regions in which the openings 41a-44a are formed. Here, the opening design corresponds to the first design in the present invention.

[0030] The aperture ratio in the aperture region is not limited, but is preferably in the range of 0% to 50%. If the aperture ratio exceeds 50%, the openings 41a to 44a stand out too much when the vehicle lamp 100 is not lit, and the visibility of the design expressed by the light-shielding layer 40 in the light-shielding regions 41 to 44 decreases. The size of the openings 41a to 44a is also not limited, but it is preferable that the width of each opening is in the range of 1 μm to 1 mm. As an example, the width of the openings 41a to 44a is the diameter in the case of a circle, and the line width in the case of a stripe shape. If the width of the openings 41a to 44a is less than 1 μm, it is not preferable because it may become a slit of about the wavelength of light and cause interference fringes like a diffraction grating. If the width of the openings 41a to 44a is more than 1 mm, the openings 41a to 44a can be individually viewed, and the design when not lit decreases.

[0031] As an example, the openings 41a to 44a have diameters of 0.3 μm, 0.2 μm, 0.12 μm, and 0.08 μm, respectively, and a pitch of 0.5 μm, etc. Therefore, the opening ratio of each opening region in which the openings 41a to 44a are formed decreases in the order of the openings 41a to 44a. Since the opening ratios of the opening regions are different, the amount of light irradiated when the vehicle lamp 100 is turned on is bright in the opening regions with a large opening ratio and dark in the opening regions with a small opening ratio.

[0032] FIG. 3 is a schematic diagram showing a case where a plurality of patterns of the light-shielding layer 40 shown in FIG. 2 are arranged, and FIG. 3(a) shows how it looks when it is not lit, and FIG. 3(b) shows how it looks when it is lit. The up-down direction in the figure corresponds to the up-down direction of the vehicle on which the vehicle lamp 100 is mounted, and the left-right direction in the figure corresponds to the horizontal direction. When the vehicle lamp 100 is not lit, as shown in FIG. 3(a), external light reaches the light-shielding layer 40 from the outside of the vehicle lamp 100 through the outer lens 50, and the light-shielding design composed of each color of the light-shielding layer 40 can be seen as it is. When the vehicle lamp 100 is lit, as shown in FIG. 3(b), light from the light source unit 10 is irradiated through the openings 41a to 44a, so that the opening design can be seen with the amount of light according to the opening ratio of the opening area.

[0033] 2 and 3, in the vehicle lamp 100 of this embodiment, the opening design formed by the arrangement of the openings 41a to 44a and the shading design formed by the shading regions 41 to 44 are shaped to correspond to each other. This makes it possible to express a design in which the shading design when the vehicle lamp 100 is not lit is closely related to the opening design when it is lit.

[0034] 2 and 3, in the unlit light-shielding design, the light-shielding areas 41 to 44 change from dark to light in that order, whereas in the lit opening design, the light-shielding areas 41 to 44 change from light to dark in that order. Therefore, even if the shapes of the opening design and the light-shielding design correspond to each other, the expression in the light-shielding design and the expression in the opening design can be made different.

[0035] As an example, the case of a light-shielding design and an opening design in the shape of a square divided into four right-angled isosceles triangles as shown in Fig. 2 and Fig. 3 will be described. As shown in Fig. 3(a), when the upper part is a dark color (dark color) and the lower part is a light color (light color), an optical illusion gives the impression of a shape that is recessed toward the back. As shown in Fig. 3(b), when the upper part is a light color (light color) and the lower part is a dark color (dark color), an optical illusion gives the impression of a shape that protrudes toward the front. Here, when the relationship between the shading and the light and dark is reversed, the recognition of the unevenness due to the optical illusion is also reversed. Therefore, by making the shape of the opening design and the light-shielding design correspond to each other and making the relationship between the shading and the light and dark different, the three-dimensional expression of the light-shielding design and the three-dimensional expression of the opening design can be made different, and the impression when the light is turned on and when the light is not turned on can be greatly different.

[0036] As described above, in the vehicle lamp 100 of this embodiment, the light blocking areas 41 to 44 have different colors, and the aperture ratios of the respective open areas are different, which makes it possible to improve the design when the lamp is lit and when it is not lit.

[0037] Second embodiment Next, a second embodiment of the present invention will be described with reference to Figs. 4 and 5. Descriptions of contents overlapping with those of the first embodiment will be omitted. Fig. 4 is a schematic diagram showing an example of a design pattern of a light-shielding layer 40 according to this embodiment. In the example shown in Fig. 4, a rectangular light-shielding design is formed by light-shielding areas 41-44, and opening areas are provided in shapes corresponding to the light-shielding areas 41-44, and openings 41a-44a are formed in each opening area. The light-shielding areas 41 and 44 are trapezoidal in shape with the long side of the rectangle as the base, and the light-shielding areas 42 and 43 are isosceles triangular in shape with the short side of the rectangle as the base.

[0038] The shading (light and dark) of the light-shielding layer 40 is such that the light-shielding region 41 is a dark color, the light-shielding region 44 is a light color, and the light-shielding regions 42 and 43 are intermediate colors. The diameters of the openings 41a to 44a formed in each opening region are large for the opening 41a, small for the opening 44a, and medium for the openings 42a and 43a. Therefore, the aperture ratio and brightness of each opening region are large for the opening 41a, small for the opening 44a, and medium for the openings 42a and 43a.

[0039] FIG. 5 is a schematic diagram showing the case where the pattern of the light-shielding layer 40 shown in FIG. 4 is used in a front grille, where FIG. 5(a) shows the overall appearance when the light is not lit, FIG. 5(b) shows the overall appearance when the light is lit, FIG. 5(c) shows the appearance of individual patterns when the light is not lit, and FIG. 5(d) shows the appearance of individual patterns when the light is lit.

[0040] As shown in Fig. 5(a)(c), the upper part of the light-shielding design is dark and the lower part is light, so that when the vehicle lamp 100 is not lit, the vehicle lamp 100 is given an impression of a recessed shape due to an optical illusion. As shown in Fig. 5(b)(d), the opening design has a large opening ratio at the top and a small opening ratio at the bottom, so that when the vehicle lamp 100 is lit, the vehicle lamp 100 is given an impression of a protruding shape due to an optical illusion. Here, if the relationship between shading and light and darkness is reversed, the recognition of the unevenness due to the optical illusion is also reversed. Therefore, by making the shape of the opening design and the light-shielding design correspond to each other and making the relationship between shading and light and darkness different, the three-dimensional expression of the light-shielding design and the three-dimensional expression of the opening design can be made different, and the impression when the vehicle lamp 100 is lit and when it is not lit can be greatly different.

[0041] Third embodiment Next, a third embodiment of the present invention will be described with reference to FIG. 6. Descriptions of contents overlapping with the first embodiment will be omitted. FIG. 6 is a schematic diagram showing an example of a design pattern of a light-shielding layer 40 according to this embodiment. In the example shown in FIG. 6, the light-shielding design is composed of stripe-shaped light-shielding regions 41, 42 extending in the horizontal direction and a light-shielding region 41 connecting both sides in the vertical direction. The light-shielding region 41 is a deep color (dark color), and the light-shielding region 42 is a light color (light color). In addition, a vertical stripe-shaped opening design is provided at a position different from the light-shielding design, and an opening 43a is formed in the opening region.

[0042] FIG. 7 is a schematic diagram showing the case where the pattern of the light-shielding layer 40 shown in FIG. 6 is used in a front grille, where FIG. 7(a) shows the overall appearance when the light is not lit, and FIG. 7(b) shows the overall appearance when the light is lit.

[0043] As shown in Fig. 7(a), when the vehicle lamp 100 is not lit, the dark-colored light-shielding area 41 and the light-colored light-shielding area 42 form a horizontal stripe light-shielding design, so that a stripe-shaped design shape extending in the horizontal direction can be seen. As shown in Fig. 7(b), when the vehicle lamp 100 is lit, the opening 43a formed in the opening area forms a vertical stripe opening design, so that a stripe-shaped design shape extending in the vertical direction can be seen. Here, if the relationship between light and dark and light is reversed, the recognition of the unevenness due to the optical illusion will also be reversed.

[0044] As described above, in the vehicle lamp 100 of this embodiment, the opening design formed by the opening area in which the opening 43a is formed and the shading design formed by the shading areas 41, 42 have different shapes, so that the design shapes when the lamp is lit and when it is not lit can be made different to express a variety of designs, thereby improving the design.

[0045] (Fourth embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIG. 8. The description of the contents overlapping with the first embodiment will be omitted. FIG. 8 is a schematic cross-sectional view showing the configuration of a vehicle lamp 100 according to this embodiment. As shown in FIG. 8, the vehicle lamp 100 of this embodiment includes a light source unit 10, a light transmission unit 20, a light-shielding layer 40, an outer lens 50, a reflector 70, and a diffusion lens 80. In addition, a plurality of openings 40a are formed in the light-shielding layer 40. The arrow L drawn in FIG. 8 shows a schematic path of light emitted from the light source unit 10 and reflected by the reflector 70. In this embodiment, the light-shielding layer 40 is formed on the back side of the light transmission unit 20, and the light source unit 10 irradiates light toward the reflector 70, which is different from the first embodiment.

[0046] The light transmitting portion 20 of this embodiment is an inner lens in which light is incident from a light incident surface on the back side and exits from a light exit surface on the front side. A light shielding layer 40 is formed on the light incident surface of the light transmitting portion 20, and a plurality of openings 40a are formed in the light shielding layer 40.

[0047] The reflector 70 is an optical member having a reflective surface that reflects light, and reflects the light emitted from the light source unit 10 toward the light transmission unit 20. In Fig. 8, an example in which the reflector 70 has a reflective surface of a concave mirror is shown, but the shape of the reflector 70 is not limited as long as the light distribution characteristics required for the vehicle lamp 100 can be realized. In addition, the housing unit 60 may be separately provided on the back side of the reflector 70, or a reflective surface may be formed on the inner surface of the housing unit 60 and integrated with the reflector 70.

[0048] The diffusion lens 80 is an optical member disposed between the rear surface of the light transmission section 20 and the reflector 70, and transmits and diffuses light. Fig. 8 shows an example of the diffusion lens 80 having an uneven shape formed on the surface facing the rear surface of the light transmission section 20, but the uneven shape may be formed on the surface facing the reflector 70. Fig. 8 shows an example of the reflector 70 having a flat plate-like portion and an uneven portion formed integrally, but the uneven shape may be provided separately from the flat surface.

[0049] In this embodiment, the light emitted from the light source unit 10 is reflected by the reflector 70, passes through the diffusion lens 80, the light transmitting unit 20, and the outer lens 50, and is emitted to the outside of the vehicle lamp 100. In addition, a light blocking layer 40 and an opening 40a are formed in the light transmitting unit 20, and the design shape of the vehicle lamp 100 when it is turned on and when it is not turned on is expressed by the light blocking design and the opening design.

[0050] In the vehicle lamp 100 of this embodiment as well, the light blocking areas 41 to 44 have different colors, and the aperture ratios of the respective open areas are different, so that the design can be improved when the lamp is lit and when it is not lit.

[0051] Fifth embodiment Next, a fifth embodiment of the present invention will be described with reference to FIG. 9. The description of the contents overlapping with the first embodiment will be omitted. FIG. 9 is a schematic cross-sectional view showing the configuration of a vehicle lamp 100 according to this embodiment. As shown in FIG. 9, the vehicle lamp 100 of this embodiment includes a light source unit 10, a light transmission unit 20, a concave-convex unit 30, a light-shielding layer 40, an outer lens 50, and a reflector 70. In addition, a plurality of openings 40a are formed in the light-shielding layer 40. The arrow L depicted in FIG. 9 shows a schematic representation of the path of light emitted from the light source unit 10 and reflected by the reflector 70. In this embodiment, the light-shielding layer 40 is formed on the front side of the light transmission unit 20, and the concave-convex unit 30 is formed on the back side of the light transmission unit 20, which is different from the fourth embodiment.

[0052] The light transmitting portion 20 of this embodiment is an inner lens in which light is incident from a light incident surface on the back side and exits from a light exit surface on the front side. A light shielding layer 40 is formed on the light exit surface of the light transmitting portion 20, and a plurality of openings 40a are formed in the light shielding layer 40.

[0053] The uneven portion 30 is an optical member provided on the back side of the light transmitting portion 20 and irradiates the light incident on the light transmitting portion 20, which is an inner lens, toward the outer lens 50. The specific shape and pitch of the uneven portion 30 are not limited, and the uneven portion 30 is formed with a required inclination and size according to the shape of the light transmitting portion 20 and the desired light distribution characteristics. Although FIG. 9 shows an example in which the uneven portion 30 is integrated with the light transmitting portion 20, the uneven portion 30 may be formed as a separate body and disposed on the back side of the light transmitting portion 20. In this embodiment, the uneven portion 30 diffuses a part of the light transmitted through the light transmitting portion 20 and irradiates it toward the outer lens 50.

[0054] In this embodiment, the light emitted from the light source unit 10 is reflected by the reflector 70, passes through the uneven portion 30, the light transmitting portion 20, and the outer lens 50, and is emitted to the outside of the vehicle lamp 100. In addition, a light blocking layer 40 and an opening 40a are formed in the light transmitting portion 20, and the design shape of the vehicle lamp 100 when it is turned on and when it is not turned on is expressed by the light blocking design and the opening design.

[0055] In the vehicle lamp 100 of this embodiment as well, the light blocking areas 41 to 44 have different colors, and the aperture ratios of the respective open areas are different, so that the design can be improved when the lamp is lit and when it is not lit.

[0056] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. [Explanation of symbols]

[0057] 100...Vehicle lighting fixtures 10...Light source section 20...Light transmission part 30...Uneven part 40...Light blocking layer 50…Outer lens 60…Housing section 70…Reflector 80...Diffusion lens 41~44…shading area 40a, 41a~44a...opening

Claims

1. A light source unit that irradiates light; A light transmitting portion that transmits the light; A light-shielding layer is formed on the light-transmitting portion, the light-shielding layer has a first light-shielding region and a second light-shielding region of different colors; A plurality of openings are formed in the light-shielding layer, The opening has a first opening region and a second opening region, the opening having different opening ratios.

2. 2. The vehicular lamp according to claim 1, A first design is configured by the first opening region and the second opening region, A second design is formed by the first light-shielding area and the second light-shielding area, A vehicular lamp, wherein the first design and the second design have corresponding shapes.

3. 2. The vehicular lamp according to claim 1, A first design is configured by the first opening region and the second opening region, A second design is formed by the first light-shielding area and the second light-shielding area, A vehicular lamp, wherein the first design and the second design have different shapes.

4. 2. The vehicular lamp according to claim 1, The vehicle lamp according to claim 1, wherein an aperture ratio of the first opening region and the second opening region is in a range of 0% to 50%.

5. 2. The vehicular lamp according to claim 1, The light-shielding layer is formed on a light exit surface of the light-transmitting portion.

6. 2. The vehicular lamp according to claim 1, The light-shielding layer is formed on a light incident surface of the light-transmitting portion.

7. 2. The vehicular lamp according to claim 1, The light transmitting portion is a light guide plate that receives the light from one end face, reflects the light from a back face, and emits the light from a light exit face.

8. 2. The vehicular lamp according to claim 1, The light transmitting portion is an inner lens into which the light enters from a light entrance surface on a rear side and which emits the light from a light exit surface on a front side.

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