JP4206943B2 - Vehicle lighting device - Google Patents

Description

  The present invention relates to a vehicle lighting device. In detail, it is related with the apparatus utilized for illumination of a license plate.

  In order to improve the visibility of the license plate of the vehicle at night, the surface thereof is irradiated with light. In such a front-light type illumination method, the license plate is directly irradiated with light from a light source installed either above, below or on the side of the license plate. In order to better irradiate the license plate, a method using a reflecting plate has been proposed (see Patent Document 1). According to this method, not only the light from the light source is directly irradiated to the license plate, but also the light reflected by the reflecting plate is irradiated to an area away from the light source. As a result, light is evenly applied to the entire surface of the license plate, and unevenness in illuminance is reduced.

Japanese Utility Model Publication No. 2-54745

  Currently, various efforts are being made to improve the design of the entire vehicle and each part. Also in the license plate portion, not only the visibility of the license plate at night etc. but also the improvement of the design or decoration is required.

  As a result of examination in view of the above problems, it has been considered that providing a light emitting portion around the license plate in addition to illuminating the license plate is effective in improving the design and the like of the license plate portion. For example, if a light emitting part having a shape such as a character or a logo mark is provided on the observation surface of a garnish that houses the light source for the license plate and this is made to emit light at night, the license plate part is decorated by the light emitting part. be able to. However, a separate light source for supplying light to the light emitting portion provided in the garnish is necessary. Considering that the space in the garnish is limited, it is difficult to install another light source in addition to the light source for the license plate, which is not preferable from the viewpoint of garnish design. In addition, installing two types of light sources in a limited space complicates the installation work.

In order to solve the above problems, the present invention provides a lighting device shown below. That is,
A light source installed around the license plate;
A garnish that includes a light transmission portion and houses the light source;
A spectroscopic member that generates, from the light of the light source, first light that irradiates the license plate and second light that irradiates the garnish;
It is a vehicle lighting device comprising

  In the vehicular illumination device of the present invention, two types of light are generated from the light of the light source, that is, the light of the license plate illumination and the light to the garnish light transmitting portion, so that the license plate illumination and the garnish light transmitting portion are transmitted. The light supply can be performed simultaneously. Therefore, it is not necessary to provide separate light sources for the license plate illumination and the garnish light transmitting portion, so that the space for the light source can be reduced. Furthermore, by sharing the light source for illuminating the license plate and the light source for the garnish light transmitting portion, the number of parts is reduced, and the cost is reduced and the mounting workability is improved. In addition, the design property of a license plate part can be effectively improved by making a garnish light transmission part into desired shapes, such as a character and a logo mark.

Hereinafter, the components of the vehicular lighting device according to the present invention will be described in detail.
(light source)
The type of the light source is not particularly limited, and for example, an LED, a light bulb (bulb), a fluorescent lamp, a cold cathode tube, or the like can be used as the light source here. Among them, it is preferable to use an LED. Since the LED is small, it has the advantage of requiring less space for the light source. In addition, LEDs are in line with the demand for energy saving because of their low power consumption. In addition, LEDs have the advantage of having a small amount of heat generation and little impact on surrounding members. In addition, since LEDs have a long life, they are advantageous from the standpoint of maintenance. Furthermore, since LEDs are resistant to vibrations and shocks, they have the advantage that a highly reliable light source can be constructed. The type of LED is not particularly limited, and various types such as a shell type and a chip type can be adopted. A plurality of LEDs may be used as the light source. In that case, the LEDs are preferably arranged at substantially equal intervals along the license plate. This is because uneven illuminance on the whole is reduced, and it becomes possible to illuminate brightly and uniformly.

  The emission color of the LED is not particularly limited, and an LED that generates light in the visible region such as white, red, green, and blue can be employed. Preferably, an LED that emits white light is employed. This is because, if a white light emitting LED is adopted, numbers and letters displayed on the license plate can be observed (visually recognized) in their original colors.

(Garnish)
A light source is stored in the garnish. The garnish includes a main body (hereinafter also referred to as a garnish main body in this specification) and a light transmission portion (hereinafter also referred to as a garnish light transmission portion) provided on the main body observation surface. The material of the garnish body is not particularly limited, but is usually made of a resin such as polypropylene resin or acrylonitrile butadiene styrene (ABS) resin, or a metal such as aluminum or stainless steel in consideration of moldability and durability. The shape of the garnish main body is not particularly limited, and a desired shape can be adopted in consideration of unity with the vehicle main body and design.
The material of the garnish light transmissive part is not particularly limited as long as it is light transmissive, and synthetic resin such as acrylic resin, polyethylene terephthalate (PET) resin, polycarbonate resin, silicone resin, epoxy resin, or inorganic material such as glass is adopted. be able to. The shape of the garnish light transmitting portion is not particularly limited, and a desired shape can be adopted in consideration of the sense of unity and design with the vehicle body, such as a geometric figure or a geometric pattern made up of characters, logo marks, straight lines or curves. .

(Spectral member)
The spectroscopic member is not particularly limited as long as the spectroscopic member can generate the first light and the second light from the light of the light source. The 1st light here is the light irradiated to a license plate, and the 2nd light is the light irradiated to a garnish light transmission part.
In one aspect of the vehicle lighting device according to the present invention, the spectroscopic member is constituted by a light guide made of a light-transmitting material. The material of the light guide is not particularly limited as long as it is light transmissive, and synthetic resins such as acrylic resin, polyethylene terephthalate (PET), polycarbonate resin, silicone resin, and epoxy resin, and inorganic materials such as glass can be adopted. it can. The light guide includes a light incident surface on which light from a light source is incident, a first light emitting surface that emits first light generated from a portion of incident light, and a first light generated from a portion of incident light. And a second light emitting surface that emits the second light. Light incident from the light incident surface is reflected in the light guide or transmitted through the light guide, and is emitted in a predetermined direction from the first light emission surface and the second light emission surface.

In another aspect of the vehicular illumination device according to the present invention, the spectroscopic member generates a first light from a part of the light from the light source, and a second light from the part from the light from the light source. And a second reflecting surface. Examples of the form of the first reflecting surface and the second reflecting surface include a reflecting surface made of a white resin and a reflecting surface made of a metal such as Al or Ag. The shapes of the first reflecting surface and the second reflecting surface are not particularly limited as long as the received light can be reflected in a predetermined direction, and examples thereof include a parabolic shape. You may comprise a 1st reflective surface and a 2nd reflective surface integrally. That is, you may comprise so that a 1st reflective surface and a 2nd reflective surface may share a part and may continue.
Note that the spectral member may generate only the first light or the second light. That is, the spectroscopic member is provided with a reflecting surface that reflects received light in the direction of the license plate (garnish light transmitting portion), and a part of the light of the light source is directly advanced in the direction of the garnish light transmitting portion (license plate). Also good.

  In still another aspect of the vehicular lighting device according to the present invention, an LED is used as a light source, and the LED includes a sealing member that generates first light and second light from light emitted from the light emitting element. As the LED, the LED disclosed in International Publication No. 03/049207 can be suitably used. In one embodiment of the light emitting diode disclosed in the publication, light emitted from the light emitting element of the LED is substantially perpendicular to the optical axis of the emitted light and the light emitted from the light emitting element of the LED is separated by the interface formed by the LED sealing member. Light substantially parallel to the optical axis is generated. Light substantially perpendicular to the optical axis of the emitted light can be used as the first light, and light substantially parallel to the optical axis of the emitted light can be used as the second light.

  The vehicular lighting device according to the present invention is used by being mounted around the license plate. Hereinafter, the configuration of the present invention will be described in more detail using examples.

FIG. 1 is a perspective view of a vehicle lighting device 1 (hereinafter also referred to as a lighting device 1) in use according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line AA in FIG. The illumination device 1 includes six LEDs 2 as light sources. LED2 is a bullet-type white light emitting LED. The six LEDs 2 are arranged at equal intervals so as to face the upper end surface of the light guide 4 described later. The LED 2 is mounted on a substrate (not shown). A wiring pattern and a power supply line (not shown) are formed on the surface of the substrate, and power is supplied to the LED 2 through the wiring pattern and the like. Further, the lighting control of the LED 2 is performed by a controller (not shown) connected via a control line (not shown).
The illumination device 1 includes a light guide 4 as a spectral member. The light guide 4 is made of a colorless and transparent acrylic resin. The light guide 4 has a plate shape, and the width thereof is substantially the same as the width of the license plate 5. The light guide 4 is installed substantially along the upper side of the license plate 5. The upper end surface of the light guide 4 faces the LED 2 and serves as a light incident surface 41 for the light of the LED 2. The lower end surface of the light guide 4 facing the license plate 5 is the first light emitting surface 43. The surface of the light guide 4 on the vehicle main body side is subjected to aluminum vapor deposition and becomes a light guide reflecting surface 44. On the other hand, the surface opposite to the light guide reflecting surface 44 is the second light emitting surface 42. Note that aluminum is deposited on the surface of the light guide 4 other than the portion corresponding to the garnish light transmitting portion 32 (described later) of the light incident surface 41, the first light emitting surface 43, and the second light emitting surface 42. .
The LED 2 and the light guide 4 having the above configuration are accommodated in the garnish 3. The garnish 3 includes a garnish main body portion 31 and a garnish light transmitting portion 32. The garnish main body portion 31 is made of ABS, and the garnish light transmitting portion 32 is made of a transparent acrylic resin. The light transmission part 32 has a planar view shape in the form of a desired character or the like (ABCDE in this example). The lower part of the garnish 3 is opened so that the light emitted from the first light emitting surface 43 of the light guide 4 can be applied to the license plate 5.

Next, the illumination aspect of the illuminating device 1 is demonstrated. First, the LED 2 is lit in conjunction with the lighting of the vehicle width lamp. The light from the LED 2 is introduced into the light guide 4 through the light incident surface 41. A part of the introduced light is reflected directly or inside the light guide 4 and then emitted from the first light emitting surface 43. The light emitted from the first light emitting surface 43 irradiates the license plate 5. On the other hand, a part of the light introduced into the light guide 4 is emitted from the second light emission surface 42. The light emitted from the second light emitting surface 42 irradiates the inner surface of the garnish light transmitting portion 32. The light passes through the garnish light transmitting portion 32 and is emitted from the outer surface. Therefore, when viewed from the outside, the garnish light transmitting portion 32 appears to emit light. As a result, a desired character or the like is displayed by light emission, and the design of the license plate portion is improved.
The second light emitting surface 42 emits only the light necessary for causing the garnish light transmitting portion 32 to emit light by performing aluminum deposition on portions other than the portion corresponding to the garnish light transmitting portion 32. Released from the surface 42. As a result, most of the light introduced into the light guide 4 is emitted from the first light emitting surface 43, and the license plate 5 can be effectively illuminated.

Here, in the illumination of the license plate 5 by the light emitted from the first light emitting surface 43, the illumination intensity becomes smaller as the area is farther from the LED 2. Therefore, it is preferable to irradiate more light on the lower part of the license plate that is far from the LED 2. Therefore, if the light guide light reflecting surface 44 is parallel to the optical axis of the LED 2, light can be actively emitted from the first light emitting surface 43 while appropriately emitting light from the second light emitting surface 42. it can. The shape of the first light emitting surface 43 of the illumination device 1 is a plane substantially parallel to the light incident surface 41. However, considering the position of the license plate 5 and the like, the shape of the first light emitting surface 43 is appropriately set so that the license plate 5 is well illuminated. Can be set.
As described above, in the illumination device 1, since the light of the LED 2 is applied to both the license plate 5 and the garnish light transmission unit 32, it is necessary to install a light source for each of the license plate 5 and the garnish light transmission unit 32. In addition, the installation space for the light source can be reduced. In addition, since the number of parts is small, the mounting work efficiency is also improved.

Here, the light guide reflecting surface 44 of the light guide 4 may be tapered so as to approach the second light emitting surface 42 from the light incident surface 41 to the first light emitting surface 43. This makes it possible to positively reflect the light introduced into the light guide 4 toward the second light emission surface 42. Further, since the light guide reflecting surface 44 approaches the optical axis of the LED 2 as the distance from the LED 2 increases, the amount of light received by the light guide reflecting surface 44 is averaged over the entire area. As a result, the garnish light transmitting portion 32 can emit light with little luminance unevenness.
The second light emitting surface 42 may be colored in an arbitrary color with a light-transmitting colorant. Alternatively, the surface of the garnish light transmitting portion 32 may be colored in an arbitrary color with a light transmitting colorant. By doing in this way, since the character which the garnish light transmissive part 32 follows can be made to shine with arbitrary colors, the design property of a license plate part can be improved further.

  A diffusion process may be performed on the surface of the garnish light transmitting portion 32. As the diffusion process, a known method such as embossing can be used. Or you may make the garnish light transmissive part 32 contain a light-diffusion material. As the light diffusing material, a known material such as a metal such as silica or aluminum can be used. By doing in this way, the brightness | luminance of the light discharge | released outside from the garnish light transmission part 32 can be equalize | homogenized.

FIG. 3 shows a perspective view of a use state of a vehicle lighting device 10 (hereinafter also referred to as a lighting device 10) which is another embodiment of the present invention. FIG. 4 is a sectional view taken along line BB in FIG. A perspective view of the reflecting member 40 is shown in FIG. In addition, in drawing used in the following description, the same code | symbol is attached | subjected to the same member as the above-mentioned illuminating device 1, and the description is abbreviate | omitted.
The lighting device 10 includes six LEDs 2. The LED 2 is installed so that emitted light is directed toward the vehicle body. The illumination device 10 further includes a spectral member 40. The spectroscopic member 40 has a uniform shape in the length direction (lateral direction), and includes a first reflecting surface 410 at a lower portion on the garnish 3 side and a second reflecting surface 420 at an upper portion. Each of the first reflecting surface and the second reflecting surface is a concave curved surface. In this embodiment, the cross sections of the first reflecting surface and the second reflecting surface are part of a parabola. The upper end of the first reflecting surface 410 and the lower end of the second reflecting surface 420 are connected by a boundary portion 430. The first reflecting surface 410 reflects the received light of the LED 2 in the direction of the license plate 5, and the second reflecting surface 420 reflects the received light of the LED 2 in the direction of the garnish light transmitting portion 32. Note that aluminum deposition is performed on the surfaces of the first reflecting surface 410 and the second reflecting surface 420. The spectral member 40 is installed between the LED 2 and the vehicle body so that the boundary portion 430 is positioned on the optical axis of the LED 2.

  Next, the illumination aspect of the illuminating device 10 is demonstrated. A part of the light of the LED 2 irradiates the first reflecting surface 410 and is reflected in the direction of the license plate 5 to illuminate the license plate 5. On the other hand, the other part of the light from the LED 2 is irradiated onto the second reflecting surface 420, reflected toward the garnish light transmitting portion 32, and radiated from the garnish light transmitting portion 32 to the outside. Thus, in the illuminating device 10, the light of LED2 can be simultaneously irradiated to both the license plate 5 and the garnish light transmission part 32. FIG. That is, the license plate light source and the garnish light transmitting portion light source are shared, and the installation space for the light source can be reduced. Further, since the number of parts is reduced, the installation work is not complicated. In addition, since the first reflecting surface 410 and the second reflecting surface 420 are integrally formed by the spectroscopic member 40, the number of parts can be further reduced, and the cost reduction and the improvement of the mounting work efficiency can be achieved. Is done.

  In the vehicle light emitting device 10, the first reflecting surface 410 and the second reflecting surface 420 are integrally configured, but the first reflecting surface 410 and the second reflecting surface 420 may be provided separately and independently. For example, as illustrated in FIG. 6, an illumination device is configured using a spectral member 401 including a first reflective surface 410 and a spectral member 402 including a second reflective surface 420. The spectroscopic member 401 is installed such that the first reflecting surface 410 faces the LED 2 and the upper end of the first reflecting surface 410 is positioned on the optical axis of the LED 2. On the other hand, the spectroscopic member 402 is installed such that the second reflecting surface 420 faces the LED 2 and the lower end of the second reflecting surface 420 is positioned on the optical axis of the LED 2. In the vehicle lighting device having the above-described configuration, the positions of the first reflecting surface 410 and the second reflecting surface 420 can be set. Therefore, the adjustment for illuminating the license plate 5 well and causing the garnish light transmitting portion 32 to emit light easily becomes easy.

FIG. 7 shows a perspective view of the vehicle lighting device 100 (hereinafter also referred to as the lighting device 100) in use, which is still another embodiment of the present invention. FIG. 8 shows a cross section taken along the line CC in FIG. An enlarged view of the light source is shown in FIG. 9, and a cross section taken along the line DD in FIG. 9 is shown in FIG. In the drawings used in the following description, the same members as those in the above-described lighting device 1 and lighting device 10 are denoted by the same reference numerals, and description thereof is omitted.
In the lighting device 100, a lamp assembly 7 including six LEDs 6 is accommodated in the garnish 3. In the longitudinal section of the LED 6 shown in FIG. 10, the ZZ axis passes through the center of the light emitting element 61 and is a line parallel to the optical axis of the emitted light of the light emitting element 61. The light emitting element 61 mounted on the lead frame 66 is wire-bonded to the lead frame 67 and sealed with a sealing member 62 made of epoxy resin. The LED 6 includes upper surface reflecting surfaces 63 a and 63 b and a central radiation surface 64 on the upper surface side of the light emitting element 61 of the sealing member 62, and includes side surface emitting surfaces 65 a and 65 b on the side surface side of the light emitting element 61. The upper surface reflecting surfaces 63a and 63b are formed in a shape in which a parabola whose symmetry axis is perpendicular to the ZZ axis is rotated around the ZZ axis with the central portion of the upper surface of the light emitting element 61 as a focal point. Is formed in a circular shape included in a plane substantially perpendicular to the ZZ axis. The side emission surfaces 65a and 65b are substantially parallel to the ZZ axis and have a cylindrical surface shape that is slightly tapered from the lower part to the upper part of the LED 6. The LED 6 is mounted on a substrate (not shown). A wiring pattern and a power supply line are formed on the surface of the substrate, and power is supplied to the LED 6 through the wiring pattern and the like. An element (not shown) such as a protective resistor is provided on the substrate.

  The lamp assembly 7 includes six LEDs 6 and a light guide 70 made of a light-transmitting acrylic resin. The six LEDs 6 are arranged at equal intervals, and the light guide 70 covers the upper surface reflection surfaces 63a and 63b, the central emission surface 64, and the side emission surfaces 65a and 65b of each LED 6 (see FIG. 10). The light guide 70 is radiated from the surfaces (light incident surfaces 70 a, 70 b and 70 c) facing the LED 6, the upper surface (reflector surface 71), the lower surface (first light emitting surface 73), and the central radiation surface 64 of the LED 6. And a surface (second light emitting surface 72) that emits light. The light incident surfaces 70a and 70b have a shape substantially along the side surface emitting surface 65b of the LED 6, and the light incident surface 70c has a circular shape included in a plane substantially perpendicular to the optical axis of the LED 6. The reflector surface 71 is a light reflecting surface on which aluminum is deposited, and has a shape substantially along the side surface emitting surface 65 b of the LED 6, and reflects the received light of the LED 6 toward the first light emitting surface 73. The second light emitting surface 72 is subjected to embossing as a light diffusion process. In the lamp assembly 7, the light of the LED 6 emitted from the first light emitting surface 73 is applied to the license plate 5, and the light of the LED 6 emitted from the second light emitting surface 72 is applied to the garnish light transmitting portion 32. It is arranged substantially along the upper end of the license plate 5.

An illumination aspect of the illumination device 100 will be described. A part of the light emitted from the light emitting element 61 is reflected in a direction substantially perpendicular to the optical axis of the light emitting element 61 by the upper surface reflecting surface 63a. The reflected light is emitted from the side emission surface 65a and introduced into the light guide 70 from the light incident surface 70a. On the other hand, the light of the light emitting element 61 that has traveled directly in the direction of the side emission surface 65a is also emitted from the side emission surface 65a and introduced into the light guide 70 from the light incident surface 70a. The light introduced into the light guide 70 as described above is guided through the light guide 70, and then a part of the light is emitted from the first light emission surface 73 to illuminate the license plate 5. On the other hand, of the light emitted from the LED 6, the light reflected by the upper surface light emitting surface 63 b is emitted from the side surface emitting surface 65 b and introduced into the light guide 70 from the light incident surface 70 b. On the other hand, the light of the light emitting element 61 that has traveled directly in the direction of the side emission surface 65b is also emitted from the side emission surface 65b and introduced into the light guide 70 from the light incident surface 70b. The light introduced as described above is applied to the reflector surface 71, reflected by the reflector surface 71 in the direction of the first light emitting surface 73, emitted from the first light emitting surface 73, and then illuminates the license plate 5. To do. Further, the other part of the light emitted from the light emitting element 61 is emitted from the central radiation surface 64 in a direction substantially parallel to the optical axis of the light emitting element 61 and is introduced into the light guide 70 from the light incident surface 70c. The introduced light is irradiated from the second light emitting surface 72 to the garnish light transmitting portion 32 and is emitted to the outside. As described above, in the lighting device 100, the light that illuminates the license plate 5 and the light that is applied to the garnish light transmitting portion 32 by the upper surface reflecting surfaces 63 a and 63 b and the central radiation surface 64 provided on the sealing member 62 of the LED 6. Are generated at the same time. Therefore, it is not necessary to separately prepare the spectral member in the illumination device 100, and the installation space can be small. Furthermore, since the number of parts is small, the mounting operation is facilitated.
Here, a light-transmitting colorant of any color may be applied to the surface of the second light emitting surface 72 of the lamp assembly 7 in the lighting device 100. Or you may make the resin which comprises the 2nd light emission surface 72 contain a coloring agent. By doing in this way, since the light emitted from the garnish light transmission part 32 can be converted into arbitrary colors, the decorativeness by the lighting device 100 is further improved. In addition, the surface of the second light emitting surface 72 is textured as a light diffusion process, but a light diffusing material may be used as the light diffusion process. That is, the light diffusing material may be contained in the resin constituting the second light emission surface 72. As the light diffusing material, a known material such as silica, glass, aluminum or the like having a predetermined particle diameter can be adopted. By performing the light diffusion process on the second light emitting surface 72, the luminance of the light emitted from the garnish light transmitting portion 32 to the outside is made uniform, and the characters formed by the garnish light transmitting portion 32 are better observed. Thus, the design of the license plate portion can be improved.

  In the illuminating device 100 described above, the lamp assembly 7 is used to simultaneously generate the light for illuminating the license plate 5 and the light applied to the garnish light transmitting portion 32. However, the lamp assembly 8 shown in FIG. 11 is used. Similarly, two types of light can be generated. In this configuration, the lamp assembly 8 includes a hollow, substantially prismatic casing 80 made of a light-transmitting acrylic resin. The casing 80 includes an upper surface (reflector surface 81), a lower surface (first light transmission surface 83), and the LED 6 The surface which irradiates the light radiated | emitted from the center radiation | emission surface 64 (2nd light transmissive surface 82) is provided. Inside the casing 80, the LEDs 6 are arranged at equal intervals, and the optical axis of the light emitting element 61 is substantially perpendicular to the second light transmission surface 82. The reflector surface 81 is a light reflecting surface on which aluminum vapor deposition has been performed, and has a shape substantially along the side surface emitting surface 65 b of the LED 6, and reflects the received light of the LED 6 toward the first light transmitting surface 83 side. The surface of the second light transmission surface 82 is subjected to embossing as a light diffusion process. The lamp assembly 8 irradiates the license plate 5 with light from the LED 6 emitted from the first light transmission surface 83 and irradiates the garnish light transmission unit 32 with light from the LED 6 emitted from the second light transmission surface 82. It is arranged substantially along the upper end of the license plate 5. According to such a configuration, the light that illuminates the license plate 5 and the light that is applied to the garnish light transmitting portion 32 by the upper surface reflecting surfaces 63 a and 63 b and the central radiation surface 64 provided on the sealing member 62 of the LED 6 and the casing 80. Are generated at the same time. Therefore, it is not necessary to separately prepare a spectral member, and the installation space for the illumination device can be small. Furthermore, since the number of parts is small, the mounting operation is facilitated.

  The present invention is not limited to the description of the embodiments and examples of the invention described above. Various modifications are also included in the present invention as long as those skilled in the art can easily conceive without departing from the scope of the claims.

  The vehicle illumination device of the present invention is used for illumination of a license plate of a vehicle and illumination of its surroundings. The present invention is not limited to automobiles but can be used for various vehicles.

FIG. 1 is a perspective view of a rear license plate portion to which a vehicle lighting device 1 according to one embodiment of the present invention is attached. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a perspective view of a vehicle light emitting device 10 according to another embodiment of the present invention. 4 is a sectional view taken along line BB in FIG. FIG. 5 is a perspective view of the spectral member 40 in the vehicle light emitting device 10. FIG. 6 is a longitudinal sectional view of a vehicle light emitting device 11 according to another embodiment of the present invention. FIG. 7 is a perspective view of a vehicle light emitting device 100 according to another embodiment of the present invention. 8 is a cross-sectional view taken along the line CC in FIG. FIG. 9 is a perspective view of the lamp assembly 7 in the vehicle light emitting device 100. 10 is a cross-sectional view taken along line DD in FIG. FIG. 11 is a longitudinal sectional view of a lamp assembly 8 of a light emitting device for a vehicle that is another embodiment of the present invention.

Explanation of symbols

1 10 11 100 Vehicle lighting system 2 6 LED
DESCRIPTION OF SYMBOLS 3 Garnish 32 Garnish light transmissive part 4 70 Light guide 41 Light incident surface 42 2nd light emission surface 43 1st light emission surface 410 1st light reflection surface 420 2nd light reflection surface 40 401 402 402 Spectral member 5 License plate 7 8 Lamp assembly 71 81 Reflector surface

Claims (5)

A light source composed of LEDs ;
A garnish having a light transmitting portion and an opening ;
A light-transmitting plate-shaped light guide installed along the upper side of the license plate, comprising a light incident surface consisting of an upper end surface facing the light source, and a lower end surface facing the license plate, The light transmission of the garnish comprises a first light emitting surface that emits light that irradiates the license plate through the opening of the garnish, and a surface opposite to the light guide reflecting surface that is a vehicle-side surface. A light guide having a second light emitting surface that emits light that irradiates the portion;
Equipped with a,
The vehicle illuminating device , wherein the garnish houses the light source and the light guide . 2. The vehicle lighting device according to claim 1, wherein the light guide reflecting surface is formed by performing aluminum deposition on a surface on the vehicle side. 3. The vehicular lighting device according to claim 2, wherein aluminum vapor deposition is performed on the second light emitting surface other than a portion corresponding to the light transmission portion of the garnish. The vehicle lighting device according to claim 3, wherein the light guide reflecting surface is parallel to an optical axis of the light source. The vehicle lighting device according to claim 4, wherein the light emitted from the first light emitting surface irradiates a lower portion of the license plate.

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