Light-emitting emblem

Abstract

To provide a light-emitting emblem from which a mark is clearly visible when a light source is illuminated.SOLUTION: A light-emitting emblem 13 includes: a light source; a housing; and a cover part 40 including a translucent part 61 for transmitting light from the light source therethrough and a light-shielding part for shielding light from the light source. A groove part 42 constituting a mark is formed in a rear surface 41b of a cover body part 41. An outer peripheral-side translucent part 63 of the translucent part 61 includes: a principal surface 42a; and a side surface 42b on an outer peripheral side of a pair of side surfaces 42b. The shading part includes a part other than the groove part 42 of the rear surface 41b. A decorative layer 50 including a half-mirror-like metal layer 52 extending along the principal surface 42a and the pair of side surfaces 42b is laminated in the groove part 42.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a luminous emblem. [Background technology]

[0002] Patent Document 1 describes an illuminating emblem that is attached to a vehicle such as an automobile and displays the manufacturer's name or mark, the vehicle name, grade, etc. (hereinafter simply referred to as the mark). This illuminating emblem has a housing with a peripheral wall that forms a recess, a light source that is placed inside the recess, and a lid that is joined to the peripheral wall to seal the light source inside the recess.

[0003] In addition, a light guide plate is disposed between the light source and the cover, which guides the incident light from the light source toward the cover. The lid is transparent to visible light. The inner surface of the lid is engraved with a pattern of the luminous emblem. A decorative layer that is transparent to visible light is printed on the inner surface.

[0004] In such luminous emblems, when the light source is off, the markings are visible from the outside in a three-dimensional manner due to the engraving. When the light source is on, the light from the light source emitted from the light guide plate toward the lid passes through the decorative layer, undergoes a color conversion, and then passes through the lid and is emitted to the outside of the luminous emblem. This causes the luminous emblem to emit light in the color converted by the decorative layer. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2017-224414 Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, it is desirable for such luminous emblems to have marks that are clearly visible even when the light source is turned on. [Means for solving the problem]

[0007] Various aspects of the luminous emblem for solving the above problems will be described below. [Aspect 1] An illuminating emblem that is attached to a vehicle and displays a mark, comprising: a light source; a housing that houses the light source and has an opening that opens toward the outside of the vehicle; and a cover portion that covers the opening from the outside and has a light-transmitting portion that transmits light from the light source and a light-shielding portion that blocks the light from the light source, wherein a groove portion that forms the mark is formed on the inner surface of the cover portion, and the groove portion has a main surface that extends along the outer surface of the cover portion and a pair of side surfaces that rise from one end and the other end of the main surface in the width direction of the groove portion, the light-transmitting portion includes the main surface and at least one of the pair of side surfaces, and the light-shielding portion includes a portion of the inner surface other than the groove portion, and wherein the groove portion is laminated with a half-mirror style metal layer that extends along the main surface and the pair of side surfaces.

[0008] When the light source is turned on, light emitted from the light source passes through the light-transmitting portion and is emitted outside the vehicle. Meanwhile, the light-shielding portion blocks the light. Here, the light-transmitting portion includes the main surface and side surfaces of the groove portion that constitutes the mark. The light-shielding portion also includes the portion of the inner surface of the cover portion other than the groove portion. Therefore, in the luminous emblem, the light-transmitting portion emits light, causing the main surface to be illuminated.

[0009] In the case of the above-mentioned luminous emblem, in addition to the main surface emitting light, the side surfaces connected to the main surface also emit light in the same manner as the main surface. Therefore, the side surfaces emit light so strongly that the boundaries of the mark tend to become unclear.

[0010] In this regard, according to the above configuration, a half-mirror metal layer is laminated on the groove portion. Therefore, light transmitted through the metal layer is incident on the main surface and side surfaces of the groove portion. Here, the optical path length of light passing through the metal layer laminated on the side surfaces is likely to be longer than the optical path length of light passing through the metal layer laminated on the main surface. Since the longer the optical path length, the more light is attenuated, the amount of light that enters the side surfaces and is emitted outward can be made smaller than the amount of light that enters the main surface and is emitted outward. As a result, the boundary of the mark tends to be clearer.

[0011] Therefore, the mark can be clearly seen when the light source is turned on. Furthermore, with the above configuration, when the light source is turned off, the grooves that make up the mark are visually recognized as a three-dimensional convex shape. Here, a metal layer is laminated on the grooves. Therefore, the metal layer gives the mark a glossy appearance and a more three-dimensional appearance. This improves the design of the luminous emblem even when the light source is turned off.

[0012] [Embodiment 2] A luminous emblem as described in [Embodiment 1], in which a pressing layer is laminated on the inner surface of the metal layer to prevent the metal layer from peeling off from the cover portion, and the pressing layer is formed from a resin material that is transparent to visible light and has a diffusing material dispersed therein.

[0013] According to the above configuration, the pressing layer prevents the metal layer from peeling off from the cover portion. Furthermore, with the above configuration, the light emitted from the light source is diffused by the pressing layer before it enters the metal layer, which allows the light to be transmitted uniformly through the metal layer and, ultimately, the light-transmitting portion, thereby allowing the light-transmitting portion to emit light uniformly.

[0014] [Aspect 3] An illuminating emblem as described in [Aspect 1] or [Aspect 2], in which a light guide is provided between the light source and the cover portion to guide the light emitted from the light source toward the translucent portion, and a recess having a reflective surface is provided on the outer surface of the light guide at a position overlapping with the light source in the thickness direction of the cover portion, and the reflective surface is configured to reflect the light from the light source toward the outer periphery of the recess.

[0015] According to this configuration, a recess having a reflective surface is provided on the outer surface of the light guide. Therefore, the light is reflected by the reflective surface and diffused toward the outer periphery of the recess. The diffused light is then reflected one or more times inside the light guide before being guided toward the light-transmitting portion. Therefore, light from the light source can be efficiently transmitted through the light-transmitting portion.

[0016] Furthermore, according to the above configuration, the light source can be positioned in a position that does not overlap with the translucent portion in the thickness direction of the cover portion, so that even when a point light source is used as the light source, it is possible to prevent the light source from appearing as a point light through the translucent portion and to reduce the number of light sources.

[0017] [Aspect 4] When the reflective surface and the recess are defined as a first reflective surface and a first recess, the inner surface of the light guide is provided with a plurality of second recesses having second reflective surfaces at positions overlapping with the translucent portions in the thickness direction, and the plurality of second reflective surfaces are configured to reflect light from the light source that is reflected inside the light guide toward the translucent portions, in an illuminating emblem as described in [Aspect 3].

[0018] According to the above configuration, the light from the light source is reflected inside the light guide and then incident on the second reflecting surfaces of the second recesses, and is reflected toward the light-transmitting portion, thereby allowing the light from the light source to be transmitted through the light-transmitting portion more efficiently.

[0019] [Aspect 5] An illuminating emblem as described in [Aspect 4], wherein the translucent portion includes an outer peripheral translucent portion provided on the outer peripheral side of the cover portion, and the light guide has a third reflecting surface at a position overlapping the outer peripheral translucent portion in the thickness direction, which reflects light reflected from the first reflecting surface toward the outer peripheral translucent portion.

[0020] According to the above configuration, light from the light source that is reflected by the first reflecting surface of the light guide and then incident on the third reflecting surface is reflected toward the outer peripheral transparent portion. This allows the light emitted from the light source to be efficiently guided toward the outer peripheral transparent portion. Therefore, the light from the light source can be efficiently transmitted through the outer peripheral transparent portion. [Effects of the Invention]

[0021] According to the present invention, the mark can be clearly seen when the light source is turned on. [Brief explanation of the drawings]

[0022] [Figure 1] FIG. 1 is a front view showing one embodiment of a light-emitting emblem. [Figure 2] FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. [Figure 3] FIG. 3 is an enlarged cross-sectional view of the main part of the cover part 40 of FIG. [Figure 4] FIG. 4 is a schematic diagram showing the path of light emitted from a light source. DETAILED DESCRIPTION OF THE INVENTION

[0023] An embodiment of the luminous emblem will now be described with reference to Figures 1 to 4. In this embodiment, the present invention is embodied as a luminous emblem 13 attached to the front of a vehicle 10.

[0024] In the following description, the fore-and-aft direction of the vehicle 10 will be simply referred to as the fore-and-aft direction X, and the front and rear in the fore-and-aft direction X will be simply referred to as the front and rear. The outside and inside of the vehicle 10 coincide with the front and rear in the fore-and-aft direction X. Therefore, in the following description, "outside" and "outer" will be referred to as "front" and "forward," and "inside" and "inner" will be referred to as "rear" and "rear."

[0025] <Luminous Emblem 13> 1 and 2, a window portion 12 that opens forward is formed in an exterior panel 11 that forms the outer shell at the front of a vehicle 10. A luminous emblem 13 is fitted in the window portion 12.

[0026] The luminous emblem 13 has an elliptical shape when viewed from the front (see FIG. 1), and is disposed so as to be perpendicular to the front-rear direction X as a whole (see FIG. 2). The design surface 13a of the luminous emblem 13 is provided with a display area 14 that displays a mark facing forward, and a background area 17 that is the portion other than the display area 14. Note that the "mark" here includes, for example, designed characters (logotype) indicating the vehicle manufacturer name, model name, grade name, etc., a figure (symbol mark) that symbolizes the vehicle manufacturer, or a logo mark formed by combining the above characters and figures. In this embodiment, the display area 14 has a main portion 15 that displays the English letter "A" and an annular portion 16 that extends along the outer periphery of the luminous emblem 13 and surrounds the main portion 15.

[0027] The luminous emblem 13 has a light source 20, a housing 30, a cover portion 40, and a light guide 70. Each component will be described in detail below.

[0028] <Light source 20> 1 and 2, a plurality of light sources 20 (four in this embodiment) are mounted on a flat substrate 21. The light sources 20 are attached to a front surface 21a of the substrate 21 and emit visible light (hereinafter simply referred to as light) forward. The light sources 20 are arranged at intervals from one another in positions overlapping the background region 17 in the front-rear direction X. For example, light-emitting diodes (LEDs) can be used as the light sources 20.

[0029] <Housing 30> As shown in FIG. 2, the housing 30 is made of a synthetic resin material. The housing 30 has a flat bottom wall 31, a peripheral wall 32 rising from the outer periphery of the bottom wall 31, and a first flange portion 34 extending from a tip end portion 32a of the peripheral wall 32 in a bent state.

[0030] A substrate 21 on which a light source 20 is mounted is attached to a front surface 31a of the bottom wall 31. A mounting structure (not shown) for mounting the luminous emblem 13 on the vehicle 10 is provided on the rear surface 31b of the bottom wall 31.

[0031] The distal end 32a of the peripheral wall 32 forms an opening 33 that opens forward. The first flange portion 34 extends from the tip end portion 32a toward the outside in the radial direction of the opening 33. The first flange portion 34 is provided over the entire circumferential direction of the opening 33.

[0032] <Cover part 40> 2 and 3, the cover portion 40 is in the form of a plate having a thickness in the front-rear direction X. That is, the thickness direction of the cover portion 40 in this embodiment coincides with the front-rear direction X.

[0033] The cover portion 40 has a cover main body portion 41 that covers the opening portion 33 from the front, a second flange portion 47, and a decorative layer 50. In this embodiment, the cover main body portion 41 corresponds to the cover portion according to the present invention.

[0034] (Cover body 41) The cover body 41 has a base material layer 43 and a light-shielding layer 46 . The base material layer 43 is made of a transparent resin material. In this embodiment, the base material layer 43 is made of polycarbonate (PC). Note that "transparent" in this embodiment includes colored transparency (colored transparency) as well as colorless transparency.

[0035] The front surface 43 a of the base layer 43 forms the entire front surface 41 a of the cover main body portion 41 . A groove main body 44 that constitutes the mark is formed on the rear surface 43b of the base layer 43. The light-shielding layer 46 is a resin layer configured to block visible light, and is formed from a mixed material obtained by mixing a resin material such as PC with a black pigment such as carbon black.

[0036] The light-shielding layer 46 is laminated on a portion 45 of the rear surface 43b surrounded by the groove main body portion 44. A groove portion 42 is formed on the rear surface 41b of the cover body portion 41. The groove portion 42 is composed of a groove main portion 44 and a light-shielding layer 46. The groove portion 42 has a central groove portion 42A that constitutes the portion of the mark that is displayed on the main portion 15, and an outer peripheral groove portion 42B that constitutes the portion of the mark that is displayed on the annular portion 16 (see FIG. 1).

[0037] As shown in Figures 3 and 4, the groove portion 42 has a main surface 42a extending along the front surface 41a of the cover main body portion 41 and a pair of side surfaces 42b rising from both ends of the main surface 42a in the width direction of the groove portion 42 (the up-down direction in Figure 3).

[0038] The main surface 42 a is included in the groove main body 44 . As shown in FIG. 4, in the central groove portion 42A, a pair of side surfaces 42b are formed by a light-shielding layer 46.

[0039] In the outer circumferential groove portion 42B, the inner circumferential side surface 42b is formed by the light-shielding layer 46, while the outer circumferential side surface 42b is formed by the base material layer 43. (Second flange portion 47) As shown in FIG. 2, the second flange portion 47 is joined to the outer peripheral edge of the cover main body portion 41 and extends along the first flange portion .

[0040] The second flange portion 47 is preferably a resin layer configured to block visible light. In this embodiment, the second flange portion 47 is made of the same material as the light-blocking layer 46.

[0041] The rear surface 47b of the second flange portion 47 is joined to the front surface 34a of the first flange portion 34. This makes the luminous emblem 13 waterproof between the first flange portion 34 and the second flange portion 47. Examples of joining methods include welding such as ultrasonic welding, laser welding, and hot plate welding, or bonding methods using hot melt or adhesive.

[0042] (Decorative layer 50) 2 and 3, a decorative layer 50 is laminated on the rear surface 41b of the cover main body 41. The decorative layer 50 is laminated over the entire rear surface 41b. That is, the decorative layer 50 is laminated in the groove portion 42 along the main surface 42a and the pair of side surfaces 42b, and is also laminated on the light-shielding layer 46.

[0043] As shown in FIG. 3, the decorative layer 50 has a base layer 51, a metal layer 52, and a pressing layer 53, and is transparent to visible light as a whole. The base layer 51 bonds the metal layer 52 to the cover body 41, and is formed by applying an undercoating agent to the rear surface 41b of the cover body 41. As the undercoating agent, for example, an acrylic or silicone-based undercoating agent can be used.

[0044] The metal layer 52 is a half-mirror aluminum thin film, and is formed by laminating it on the base layer 51 using a vapor deposition method such as vacuum deposition or sputtering. In this embodiment, the thickness of the metal layer 52 in the lamination direction is set to be constant throughout.

[0045] The pressing layer 53 is formed by applying a top coating agent in which a diffusing material is dispersed to the base layer 51 and the rear surface 52b of the metal layer 52. For example, an acrylic top coating agent can be used as the top coating agent. For example, titanium oxide, silica, etc. can be used as the diffusing material.

[0046] The outer peripheral end of the pressing layer 53 is joined to the base layer 51. That is, the metal layer 52 is sandwiched between the pressing layer 53 and the base layer 51. This prevents the metal layer 52 from peeling off from the base layer 51 and, ultimately, from the cover body 41.

[0047] (Transparent part 61, light shielding part 64) 1 to 4, the display area 14 is an area in which the groove main body 44 and the decorative layer 50 laminated on the groove main body 44 are visible from the front through the transparent base layer 43, and is transparent to visible light as a whole. That is, the display area 14 forms a light-transmitting portion 61 that transmits light from the light source 20.

[0048] The light-transmitting portion 61 has a central light-transmitting portion 62 corresponding to the main portion 15 and an outer light-transmitting portion 63 provided on the outer periphery of the cover portion 40 and corresponding to the annular portion 16 . As shown in FIG. 4, the central translucent portion 62 includes the main surface 42a of the central groove portion 42A.

[0049] 3 and 4, the outer periphery side light-transmitting portion 63 includes the main surface 42a and the outer periphery side surface 42b of the outer periphery side groove portion 42B. In other words, the outer periphery side light-transmitting portion 63 corresponds to the light-transmitting portion according to the present invention.

[0050] 1 to 4, the background region 17 is a region in which the light-shielding layer 46 is visible from the front through the transparent base layer 43, and as a whole forms a light-shielding portion 64 that blocks light from the light source 20. In other words, the light-shielding portion 64 includes the part of the rear surface 41b of the cover main body portion 41 other than the groove portion 42.

[0051] <Light guide 70> As shown in FIGS. 2 and 4, a light guide 70 is disposed between the light source 20 and the cover portion 40.

[0052] The light guide 70 transmits and diffuses the incident light from the light source 20, and is made of a transparent resin material. Examples of the transparent resin material that can be used include PC and polymethyl methacrylate (PMMA). In this embodiment, the light guide 70 is made of PC. Note that "transparent" here includes colored transparency (colored transparency) as well as colorless transparency.

[0053] The light guide 70 has an outer edge shape that conforms to the opening 33 (see FIG. 2). The light guide 70 has a light entrance portion 71, a first recess 72, and a second recess 73. The light entrance portion 71 is provided as a protrusion on the rear surface 70b of the light guide 70 at a position facing the plurality of light sources 20 in the front-rear direction X.

[0054] 4, the light entrance portion 71 has a convex surface 71a and an annular convex portion 71b that extends in an annular shape so as to surround the convex surface 71a. The light entrance portion 71 is configured to convert light incident from the light source 20 into parallel light that travels parallel along the front-rear direction X inside the light guide 70, as indicated by the arrows in FIG. 4 (see, for example, light C and D).

[0055] 2 and 4, the first recesses 72 are provided on the front surface 70a of the light guide 70 at positions that overlap with the plurality of light sources 20 in the front-rear direction X. The first recesses 72 form conical convex portions inside the light guide 70.

[0056] As shown in FIG. 4, inside the light guide 70, the first recess 72 has a first reflecting surface 72a that is inclined so as to approach the radially outer side of the first recess 72 (hereinafter, outer periphery side) toward the front.

[0057] The first reflecting surface 72a is configured to reflect light from the light source 20 that enters through the light entrance portion 71 toward the outer periphery of the first recess 72, as shown by the arrow in Figure 4 (see, for example, light C and D).

[0058] 4, a plurality of second recesses 73 are provided on the rear surface 70b of the light guide 70 at positions that overlap with the light-transmitting portions 61 in the front-rear direction X. The second recesses 73 form conical convex portions inside the light guide 70. Inside the light guide 70, the second recesses 73 have second reflecting surfaces 73a that are inclined so as to approach the radially outer side of the second recesses 73 (hereinafter, referred to as the outer periphery side) as they extend further rearward.

[0059] The second reflecting surface 73a is configured to reflect light reflected inside the light guide 70 toward the light-transmitting portion 61 at an overlapping position in the front-to-rear direction X, as shown by the arrow in Figure 4 (see, for example, light E and F).

[0060] As shown in FIGS. 2 and 4, the outer peripheral surface 70c of the light guide 70 forms a third reflecting surface 74 that is inclined so as to approach the outer peripheral side as it goes forward inside the light guide 70. The third reflecting surface 74 is positioned so as to overlap with the outer peripheral side light-transmitting portion 63 in the front-to-rear direction X, and is configured to reflect light reflected from the first reflecting surface 72a toward the outer peripheral side light-transmitting portion 63, as shown by the arrow in Figure 4 (see, for example, light C).

[0061] <Operation of this embodiment> Next, the operation of this embodiment will be described. When the light source 20 is turned on, light emitted from the light source 20 passes through the light-transmitting portion 61 and is emitted forward of the vehicle 10. On the other hand, the light-shielding portion 64 blocks the light. Here, the central light-transmitting portion 62 includes the main surface 42a of the central groove portion 42A of the groove portion 42 that constitutes the mark. Furthermore, the outer peripheral light-transmitting portion 63 includes the main surface 42a and outer peripheral side surface 42b of the outer peripheral groove portion 42B of the groove portion 42. Furthermore, the light-shielding portion 64 includes the part of the rear surface 41b of the cover main body portion 41 other than the groove portion 42. Therefore, in the luminous emblem 13, the light-transmitting portion 61 emits light, causing the main surface 42a to be illuminated.

[0062] In the case of the above-mentioned luminous emblem 13, in addition to the main surface 42a emitting light, the outer peripheral side surface 42b connected to the main surface 42a also emits light in the same manner as the main surface 42a in the outer peripheral translucent portion 63. For this reason, the outer peripheral side surface 42b emits light strongly, which tends to make the boundary of the mark unclear.

[0063] In this regard, according to the above embodiment, as shown in FIG. 3, a decorative layer 50 including a half-mirror-like metal layer 52 is laminated on the groove 42. Therefore, light A and light B transmitted through the metal layer 52 are incident on the main surface 42a and the outer peripheral side surface 42b of the outer peripheral groove 42B, respectively. Here, the optical path length L2 of light B transmitted through the metal layer 52 laminated on the outer peripheral side surface 42b is likely to be longer than the optical path length L1 of light A transmitted through the metal layer 52 laminated on the main surface 42a. Since the longer the optical path length, the more light is attenuated, the amount of light B incident on the outer peripheral side surface 42b and emitted forward can be made smaller than the amount of light A incident on the main surface 42a and emitted forward. As a result, the boundary of the mark is likely to be clearly defined.

[0064] Furthermore, when the light source 20 is turned off, the grooves 42 that make up the mark are visible from the front as a convex shape in a three-dimensional manner. Here, a metal layer 52 is laminated on the grooves 42. Therefore, the metal layer 52 gives the mark a glossy appearance and a more three-dimensional appearance. This improves the design of the luminous emblem 13 even when the light source 20 is turned off.

[0065] <Effects of this embodiment> Next, the effects of this embodiment will be described. (1) The luminous emblem 13 includes a light source 20, a housing 30 that accommodates the light source 20, and a cover portion 40 that covers the opening 33 from the front and has a light-transmitting portion 61 that transmits light from the light source 20 and a light-shielding portion 64 that blocks the light from the light source 20. A groove portion 42 that constitutes a mark is formed on the rear surface 41b of the cover main body portion 41 of the cover portion 40. The groove portion 42 has a main surface 42a and a pair of side surfaces 42b that rise from both ends of the main surface 42a in the width direction of the groove portion 42. An outer peripheral light-transmitting portion 63 of the light-transmitting portion 61 includes the main surface 42a and the outer peripheral side surface 42b of the pair of side surfaces 42b. The light-shielding portion 64 includes a portion of the rear surface 41b other than the groove portion 42. A decorative layer 50 including a half-mirror-like metal layer 52 that extends along the main surface 42a and the pair of side surfaces 42b is layered on the groove portion 42.

[0066] This configuration provides the above-mentioned effects, and therefore the mark can be clearly seen when the light source 20 is turned on. (2) A pressing layer 53 is laminated on the rear surface 52b of the metal layer 52 to prevent the metal layer 52 from peeling off from the cover body 41. The pressing layer 53 is made of a resin material having visible light transparency and in which a diffusing material is dispersed.

[0067] According to this configuration, the pressing layer 53 prevents the metal layer 52 from peeling off from the cover main body 41 . Furthermore, with the above configuration, the light emitted from the light source 20 is diffused by the pressing layer 53 before entering the metal layer 52. This allows the light to be uniformly transmitted through the metal layer 52 and, ultimately, the light-transmitting portion 61. Therefore, the light-transmitting portion 61 can emit light uniformly.

[0068] (3) A light guide 70 is provided between the light source 20 and the cover portion 40 to guide the light emitted from the light source 20 toward the light-transmitting portion 61. A first recess 72 having a first reflecting surface 72a is provided on the front surface 70a of the light guide 70 at a position overlapping with the light source 20 in the front-rear direction X. The first reflecting surface 72a is configured to reflect the light from the light source 20 toward the outer periphery of the first recess 72.

[0069] According to this configuration, the front surface 70a of the light guide 70 is provided with a first recess 72 having a first reflecting surface 72a. Therefore, the light is reflected by the first reflecting surface 72a and diffused toward the outer periphery of the first recess 72. The diffused light is then reflected one or more times inside the light guide 70 and guided toward the light-transmitting portion 61. Therefore, the light from the light source 20 can be efficiently transmitted through the light-transmitting portion 61.

[0070] Furthermore, according to the above configuration, the light source 20 can be positioned at a position that does not overlap with the translucent portion 61 in the front-to-rear direction X, i.e., at a position that overlaps with the background region 17. Therefore, even when a point light source is used as the light source 20, it is possible to prevent the light source 20 from appearing as a point light through the translucent portion 61, and it is possible to reduce the number of light sources 20.

[0071] (4) The rear surface 70b of the light guide 70 is provided with a plurality of second recesses 73 each having a second reflecting surface 73a at a position overlapping the light-transmitting portion 61 in the front-rear direction X. The second reflecting surfaces 73a are configured to reflect, toward the light-transmitting portion 61, light from the light source 20 that is reflected inside the light guide 70.

[0072] According to this configuration, the light from the light source 20, which is reflected inside the light guide 70 and then incident on the second reflecting surfaces 73a of the plurality of second recesses 73, is reflected toward the light-transmitting portion 61. Therefore, the light from the light source 20 can be transmitted through the light-transmitting portion 61 more efficiently.

[0073] (5) The light guide 70 has a third reflecting surface 74 on the outer peripheral surface 70c, which is located at a position overlapping with the outer peripheral side translucent portion 63 in the front-to-rear direction X, and which reflects light reflected from the first reflecting surface 72a toward the outer peripheral side translucent portion 63.

[0074] According to this configuration, the light from the light source 20 that is reflected by the first reflecting surface 72a of the light guide 70 and incident on the third reflecting surface 74 is reflected toward the outer periphery side light-transmitting portion 63. This allows the light emitted from the light source 20 to be efficiently guided toward the outer periphery side light-transmitting portion 63. Therefore, the light from the light source 20 can be efficiently transmitted through the outer periphery side light-transmitting portion 63.

[0075] <Example of change> This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility.

[0076] The light guide 70 is not limited to having both the plurality of second recesses 73 and the third reflective surface 74 at a position overlapping the outer peripheral translucent portion 63 in the front-to-rear direction X, as exemplified in this embodiment, and may be one in which either one of them is omitted.

[0077] The second recesses 73 are not limited to being provided at positions overlapping the light-transmitting portions 61 in the front-to-rear direction X, but may be provided over the entire rear surface 70b of the light guide 70 except for the light-entering portions 71.

[0078] The second recesses 73 may be omitted from the light guide 70 altogether. The light guide 70 may be omitted from the luminous emblem 13. In this case, multiple light sources 20 may be arranged at intervals in positions that overlap the light-transmitting portion 61 in the front-rear direction X so that light is transmitted uniformly through the light-transmitting portion 61.

[0079] In the outer circumferential groove portion 42B, both of the pair of side surfaces 42b may be formed by the base material layer 43. In this case, the outer circumferential groove portion 42B includes the main surface 42a and the pair of side surfaces 42b of the outer circumferential groove portion 42B. That is, the light-transmitting portion of the present invention is not limited to the outer circumferential groove portion 42B including the main surface 42a and one of the pair of side surfaces 42b, as in the outer circumferential groove portion 42B of the present embodiment, but may include the main surface 42a and the pair of side surfaces 42b.

[0080] The light-transmitting portion according to the present invention is not limited to the outer peripheral light-transmitting portion 63, but may be the central light-transmitting portion 62. In this case, at least one of the pair of side surfaces 42b of the central groove portion 42A may be formed by the base material layer 43. In this case, the central light-transmitting portion 62 includes the main surface 42a and the one side surface 42b of the central groove portion 42A.

[0081] The pressing layer 53 is not limited to being made of a resin material in which a diffusion material is dispersed, but may be made of only a resin material. The pressing layer 53 may be omitted.

[0082] The decorative layer 50 is not limited to being laminated over the entire rear surface 41b of the cover body 41, but may be laminated over at least the main surface 42a and the pair of side surfaces 42b of the groove 42.

[0083] The shape of the mark displayed in the display area 14 of the luminous emblem 13 is not limited to that exemplified in this embodiment, and may be changed as appropriate to suit the specifications of the vehicle 10. In this case, the groove 42 may be formed on the rear surface 41b to match the shape of the mark.

[0084] The luminous emblem according to the present invention is not limited to being attached to the exterior panel 11 that constitutes the outer shell at the front of the vehicle 10. For example, the luminous emblem may be attached to an exterior vehicle part such as a back door garnish that constitutes the outer shell at the rear of the vehicle 10, or a side door garnish or pillar garnish that constitutes the outer shell at the side of the vehicle 10.

[0085] The luminous emblem according to the present invention is not limited to being attached to exterior vehicle parts, but can also be embodied as being attached to interior vehicle parts such as door handles and instrument panels. [Explanation of symbols]

[0086] A,B,C,D,E,F…light L1,L2…Optical path length X…Anteroposterior direction 10...Vehicle 11...Exterior panel 12...Window section 13...Luminous emblem 13a...Design surface 14...Display area 15...Main part 16...Annular section 17…Background area 20...Light source 21... Circuit board 21a...Front 30…Housing 31...Bottom wall 31a...Front 31b…Rear side 32...peripheral wall 32a...Tip 33...Opening 34...First flange 34a...Front 40...Cover part 41...Cover body 41a...Front 41b…Rear side 42...Groove 42A...Central drain 42B...Outer peripheral groove 42a…main surface 42b…side 43…base material layer 43a…front 43b…back 44…groove body 45…part 46…Light-shielding layer 47…Part 2 Furain 47b…back 50…Decorative layer 51…lower stratum 52…Metal layer 52b…back 53…Oshito floor 61…light-transmitting part 62…Central light-transmitting portion 63…Outer peripheral light-transmitting portion 64…Light shielding part 70…Light guide 70a…front 70b…back 70c…outer surface 71…Light entrance part 71a…convex 71b…annular convex portion 72…1st concave part 72a…first reflecting surface 73…2nd concave part 73a…Second reflecting surface 74…Third reflecting surface

Claims

1. A light-emitting emblem that is attached to a vehicle and displays a mark, A light source and a housing that includes an opening that opens toward the outside of the vehicle and that accommodates the light source; a cover portion that covers the opening from the outside and has a light-transmitting portion that transmits light from the light source and a light-shielding portion that blocks light from the light source, A groove portion that forms a mark is formed on the inner surface of the cover portion, the groove portion has a main surface extending along an outer surface of the cover portion and a pair of side surfaces rising from one end and the other end of the main surface in a width direction of the groove portion, the light-transmitting portion includes the main surface and at least one of the pair of side surfaces, the light-shielding portion includes a portion of the inner surface other than the groove portion, A half-mirror metal layer extending along the main surface and the pair of side surfaces is laminated in the groove portion. Luminous emblem.

2. a pressing layer is laminated on the inner surface of the metal layer to prevent the metal layer from peeling off from the cover portion; The pressing layer is formed of a resin material having visible light transparency and having a diffusing material dispersed therein. The luminous emblem according to claim 1 .

3. a light guide that guides the light emitted from the light source toward the light-transmitting portion is provided between the light source and the cover portion; a recess having a reflective surface is provided on an outer surface of the light guide at a position overlapping the light source in a thickness direction of the cover portion, The reflecting surface is configured to reflect light from the light source toward an outer periphery of the recess.

3. The luminous emblem according to claim 1 or 2.

4. When the reflecting surface and the recess are defined as a first reflecting surface and a first recess, a plurality of second recesses each having a second reflecting surface are provided on an inner surface of the light guide at positions overlapping with the light-transmitting portion in the thickness direction; The plurality of second reflecting surfaces are configured to reflect light from the light source and reflected inside the light guide toward the light-transmitting portion. The luminous emblem according to claim 3.

5. the light-transmitting portion includes an outer peripheral light-transmitting portion provided on an outer peripheral side of the cover portion, the light guide is provided with a third reflecting surface at a position overlapping with the outer peripheral light-transmitting portion in the thickness direction, the third reflecting surface being configured to reflect the light reflected from the first reflecting surface toward the outer peripheral light-transmitting portion; The luminous emblem according to claim 4.

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