JP2008147042A - Marker lamp for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a marker lamp for vehicle which is constructed so as to reflect light from a plurality of light-emitting diodes toward the front of the lamp by a reflector, and in which the reflection surface of the reflector is made to look brightly lighted at the time of lighting of the lamp, and the light-emitting area is secured as large as possible, while further thinness of the lamp and reduction of the number of components are achieved. <P>SOLUTION: Formation of seventeen pieces of projection parts 14b are carried out at the portions in the vicinity of the outer periphery of a reflection surface 14a of a reflector 14 at equal intervals mutually in the circumference direction regarding the optical axis Ax, the light-emitting diodes 12 are respectively arranged at the rear in the vicinity of these. Then, the light from these light-emitting diodes 12 is irradiated toward the optical axis Ax through windows 14c formed at each projection part 14b and made to enter into a fan-shape region 14aA located on the opposite side to the light-emitting diodes 12 regarding the optical axis Ax. Thereby, the portion of each projection parts 14b on the reflection surface 14a is made to look brightly lighted upto the outer periphery. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicular marker lamp configured to reflect light from a plurality of light emitting diodes toward the front of a lamp by a reflector.

  2. Description of the Related Art Conventionally, many vehicular marker lamps use a light emitting diode as a light source. As a lamp configuration, a plurality of light emitting diodes and light from each of the light emitting diodes are reflected toward the front of the lamp. A thing provided with a reflector is known.

  For example, “Patent Document 1” describes a vehicular marker lamp in which a plurality of light emitting diodes are arranged in the vicinity of the outer peripheral edge of a reflector at equal intervals in the circumferential direction with respect to an optical axis extending in the front-rear direction of the lamp. .

JP 2000-40410 A

  Like the vehicle lamp described in the above-mentioned “Patent Document 1”, a plurality of light emitting diodes are arranged in the vicinity of the outer peripheral edge of the reflector, so that the lamp is made thin, and the reflecting surface of the reflector when the lamp is lit Can be made to appear bright and shining.

  However, in the vehicular marker lamp described in the above-mentioned “Patent Document 1”, the plurality of light emitting diodes are arranged so as to surround the reflector in the vicinity of the front of the reflector, and thus have the following problems.

  That is, if a plurality of light emitting diodes are arranged so as to surround the reflector, the size of the reflector is reduced by the space for the arrangement, so the light emitting area of the reflector is also reduced accordingly, and the driver of the following vehicle There is a problem that the visibility with respect to, etc. is reduced.

  In addition, when a plurality of light emitting diodes are arranged so as to surround the reflector in this way, an annular shielding member that covers the plurality of light emitting diodes from the front side is arranged to ensure the appearance when the lamp is not lit. There is also a problem that the number of parts increases accordingly.

  Further, since the plurality of light emitting diodes are arranged in the vicinity of the front of the reflector, the depth dimension of the lamp requires a depth dimension corresponding to the space for arranging each light emitting diode in addition to the depth dimension of the reflector. There is also a problem that there is a limit in reducing the thickness.

  The invention of the present application has been made in view of such circumstances, and in a vehicle marker lamp configured to reflect light from a plurality of light emitting diodes toward the front of the lamp by the reflector, the reflector when the lamp is lit An object of the present invention is to provide a vehicular beacon lamp that makes it possible to make the light-reflecting surface look bright and shining, to secure the light emitting area as large as possible, and to make the lamp thinner and reduce the number of parts. It is what.

  The present invention is intended to achieve the above object by devising the configuration of the reflector and the arrangement of the plurality of light emitting diodes.

That is, the vehicle marker lamp according to the present invention is
In a vehicle marker lamp comprising a plurality of light emitting diodes and a reflector that reflects light from each of the light emitting diodes toward the front of the lamp,
The plurality of light emitting diodes are arranged in the vicinity of the outer peripheral edge of the reflector at substantially equal intervals in the circumferential direction with respect to the optical axis extending in the front-rear direction of the lamp,
The reflecting surface of the reflector is configured to reflect the light from each of the light emitting diodes toward the front of the lamp in a reflection region located on the opposite side of the light emitting diode with respect to the optical axis,
Projections as many as the number of the plurality of light emitting diodes arranged in the vicinity of the outer peripheral edge of the reflecting surface of the reflector are formed at substantially equal intervals in the circumferential direction with respect to the optical axis. Each light emitting diode is arranged in the vicinity of the rear of the
A window for irradiating light from each light emitting diode toward the optical axis is formed in each protrusion.

  The plurality of “projections” are formed in the vicinity of the outer peripheral edge of the reflecting surface of the reflector in the same number as the number of the plurality of light emitting diodes arranged and at substantially equal intervals in the circumferential direction with respect to the optical axis. If it is a thing, the specific shape will not be specifically limited.

  As long as the “window” of each protrusion is formed so as to allow light from each light-emitting diode to pass toward the optical axis, the specific shape and size thereof are particularly limited. In addition, each of these “window portions” may be an opening or a translucent portion made of a transparent member.

  The specific arrangement number of the “plurality of light emitting diodes” is not particularly limited. Further, the specific configuration for irradiating the light from each of these “light emitting diodes” toward the optical axis through the window portion of each protruding portion is not particularly limited. Arrange the diode toward the optical axis and irradiate the emitted light toward the optical axis directly or via a lens or the like, or arrange each light emitting diode in a direction other than the optical axis, and A configuration in which the emitted light is reflected by a mirror, a reflector, or the like and irradiated toward the optical axis can be employed.

  As shown in the above configuration, the vehicle marker lamp according to the present invention is configured to reflect the light from the plurality of light emitting diodes toward the front of the lamp by the reflector. The reflectors are arranged in the vicinity of the outer peripheral edge of the reflector at substantially equal intervals in the circumferential direction with respect to the optical axis extending in the front-rear direction, and the reflecting surface of the reflector transmits light from each light-emitting diode with respect to the optical axis. It is configured to reflect toward the front of the lamp in the reflection area located on the opposite side of the lamp, so that the reflector should be made thin and the reflector's reflective surface will appear bright and shiny when the lamp is lit. Can do.

  In addition, in the vehicular marker lamp according to the present invention, the same number of protrusions as the number of the plurality of light emitting diodes arranged in the vicinity of the outer peripheral edge of the reflecting surface of the reflector are substantially equally spaced in the circumferential direction with respect to the optical axis. The light emitting diodes are arranged in the vicinity of the rear of each protrusion, and the light from each light emitting diode is irradiated to the protrusion toward the optical axis. Since the window is formed, the following effects can be obtained.

  That is, the light from each light emitting diode is irradiated toward the optical axis through the window portion of each projecting portion, and is reflected toward the front of the lamp in the reflection region located on the opposite side of the light emitting diode with respect to the optical axis. However, since each of these reflection regions is formed so as to extend between the protrusions adjacent to each other, the reflected light from the portion located between these protrusions is also forward of the lamp. It will be irradiated. For this reason, even when a plurality of light emitting diodes are arranged in the vicinity of the outer peripheral edge of the reflecting surface of the reflector, when the lamp is turned on, the portion between the protrusions on the reflecting surface reaches the outer peripheral edge of the reflecting surface. As a result, the light emitting area of the reflector can be sufficiently secured, and the visibility of the driver of the following vehicle can be improved.

  In addition, when a plurality of light emitting diodes are arranged so as to surround the reflector as in the prior art, an annular shape covering the plurality of light emitting diodes from the front side, which is necessary to ensure the appearance when the lamp is not lit. Therefore, the number of lamp parts can be reduced accordingly.

  Furthermore, in the vehicular marker lamp according to the present invention, each light emitting diode is arranged in the vicinity of the rear of each protrusion formed in the vicinity of the outer peripheral edge of the reflecting surface of the reflector. The depth dimension for the space for arranging each light-emitting diode, which is necessary when the light-emitting diode is arranged near the front of the reflector, becomes unnecessary, and the depth dimension of the reflector itself can be the depth dimension of the lamp. As a result, it is possible to further reduce the thickness of the lamp.

  As described above, according to the present invention, in the vehicular marker lamp configured to reflect the light from the plurality of light emitting diodes toward the front of the lamp by the reflector, the reflecting surface of the reflector appears to shine brightly when the lamp is turned on. In addition, it is possible to secure the light emitting area as large as possible and to further reduce the thickness of the lamp and reduce the number of parts.

  In the above-described configuration, each of the reflection areas on the reflection surface of the reflector is formed as a fan-shaped area centered on the optical axis in front view of the lamp, and the plurality of fan-shaped areas are discretely arranged in the circumferential direction with respect to the optical axis. In this way, when the lamp is lit, the reflecting surface of the reflector can appear to shine discretely in the circumferential direction, and reflection control for light from each light emitting diode can be easily performed with high accuracy. Thus, the visibility when the lamp is turned on can be further improved.

  At this time, if each of the fan-shaped regions is formed in a stepped shape in the radial direction with respect to the optical axis, the reflecting surface of the reflector can be seen not only in the circumferential direction but also in the radial direction when the lamp is turned on. In addition, reflection control for light from each light emitting diode can be easily performed with higher accuracy.

  In this case, the intermediate regions located between the sector regions on the reflecting surface of the reflector are also formed in a step shape in the radial direction with respect to the optical axis, and the uppermost step portion in each intermediate region is If formed by the protrusions, the shape of each of the protrusions can be made uncomfortable with the surface shape of the other part of the reflection surface, and thus the design of the reflection surface can be harmonized as a whole. Can be.

  In the above configuration, the number of the plurality of light emitting diodes is set to an odd number, and the emitted light from each of the light emitting diodes is passed through the window portion of each projecting portion as substantially parallel light directed to the optical axis in a front view of the lamp. If the optical member that performs control for this is arranged in the vicinity of the rear of each protrusion, light from each light-emitting diode can be efficiently incident on each reflection region. Can be made to shine brighter. Here, as the “optical member”, for example, a lens, a reflector, or a combination thereof can be used.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing a vehicular marker lamp 10 according to an embodiment of the present invention. Also, FIG. 2 shows II-II in FIG.
FIG. 3 is a detailed sectional view taken along line III of FIG.

  As shown in these drawings, the vehicle marker lamp 10 according to the present embodiment is a tail lamp provided at the rear end of the vehicle, and includes 17 light emitting diodes 12, a reflector 14, a translucent cover 16, A light source holder 18 and a condensing lens 20 are provided, and an optical axis Ax extending in the front-rear direction of the lamp is provided.

  The reflector 14 has a circular outer shape centered on the optical axis Ax when viewed from the front of the lamp, and the 17 light emitting diodes 12 are arranged at regular intervals in the circumferential direction with respect to the optical axis Ax. 14 is arranged in the vicinity of the outer peripheral edge.

  The reflecting surface 14a of the reflector 14 reflects the light from each light emitting diode 12 toward the front of the lamp in each of 17 reflecting regions located on the opposite side of the light emitting diode 12 with respect to the optical axis Ax. It is configured.

  Each of these reflection areas is formed as a sector area 14aA centered on the optical axis Ax in the lamp front view, and is discretely arranged in the circumferential direction with respect to the optical axis Ax.

  Each of the sector regions 14aA is formed in a step shape in the radial direction with respect to the optical axis Ax. At this time, the plurality of reflecting elements 14aAs constituting each of the fan-shaped regions 14aA project so as to diffusely reflect the light from each light emitting diode 12 in the radial direction and the circumferential tangential direction with respect to the optical axis As toward the front of the lamp. It is formed in a curved surface shape.

  The intermediate region 14aB located between the sector regions 14aA on the reflecting surface 14a of the reflector 14 is formed in a step shape in the radial direction with respect to the optical axis Ax. Further, 17 projecting portions 14b are formed at equal intervals in the circumferential direction with respect to the optical axis Ax in the vicinity of the outer peripheral edge of the reflecting surface 14a of the reflector 14. Then, the uppermost step portion in each intermediate region 14aB is formed by each projecting portion 14b.

  Each light emitting diode 12 is disposed in the vicinity of the rear of each protrusion 14b.

  Each of these light emitting diodes 12 is a red light emitting diode. The light emitting chip 12a supported by the substrate 12b is covered with a sealing resin member 12c in a hemispherical shape, and the light emitting chip 12a is slightly directed toward the optical axis Ax. The light source holder 18 is fixedly supported in a state of being inclined forward.

  The light source holder 18 is composed of an annular metal member centered on the optical axis Ax, and fixedly supports each light emitting diode 12 at 17 points in the circumferential direction. The light source holder 18 is fixedly supported on the rear surface of the outer peripheral edge of the reflector 14 on the front surface of the outer peripheral edge.

  The translucent cover 16 is made of a red transparent synthetic resin member, and is formed in a transparent shape. The translucent cover 16 has a circular outer shape centered on the optical axis Ax in the front view of the lamp, and is fixedly supported on the outer peripheral edge of the reflector 14 at the outer peripheral edge.

  The reflector 14 is made of a colorless and transparent synthetic resin member, and the front surface thereof is subjected to a mirror surface treatment such as aluminum vapor deposition except for the rising surfaces on the optical axis Ax side of the 17 protruding portions 14b. . As a result, a reflecting surface 14a is formed on the front surface of the reflector 14, and light from each light emitting diode 12 is irradiated toward the optical axis Ax on the wall surface portion on the optical axis Ax side of each protruding portion 14b. Window portions 14c are formed respectively.

  The condensing lens 20 is disposed between each light emitting diode 12 and each window portion 14c in the vicinity of the rear of each projecting portion 14b of the reflector 14. Each of these condenser lenses 20 is composed of a Fresnel lens whose optical axis is an axis Ax1 extending in a direction slightly inclined forward with respect to a direction orthogonal to the optical axis Ax, and is fixedly supported by the light source holder 18. ing. Thus, each of these condensing lenses 20 constitutes an optical member that performs control for allowing the emitted light from each light emitting diode 12 to pass through each window portion 14c as parallel light directed to the optical axis Ax in the front view of the lamp. is doing.

  The window 14c of each protrusion 14b has a surface shape formed in a concave curve shape in which the cross-sectional shape along the plane including the optical axis Ax gradually increases in thickness from the front edge to the rear edge. Thus, the light from each light emitting diode 12 that has passed through each condenser lens 20 is diffused somewhat toward the rear side of the lamp, and on the opposite side of each light emitting diode 12 with respect to the optical axis Ax on the reflecting surface 14a of the reflector 14. It is made to enter in the whole area of each fan-shaped area | region 14aA located. In addition, the window part 14c of each protrusion part 14b is formed so that it may extend in the circumferential tangent direction with respect to the optical axis Ax, and the light from each light emitting diode 12 that has passed through each condenser lens 20 can be obtained. Are made incident on each fan-shaped region 14aA as parallel light.

  As a result, as shown in FIG. 1, when the light emitting diode 12 positioned immediately below the optical axis Ax is turned on, a plurality of reflecting elements constituting the fan-shaped region 14aA positioned directly above the optical axis Ax when viewed from the front of the lamp 14aAs appear to shine discretely brightly in the radial direction with respect to the optical axis Ax.

  FIG. 4 is a front view showing the vehicular marker lamp 10 according to the present embodiment in a state where the 17 light emitting diodes 12 are simultaneously turned on.

  As shown in the figure, on the reflecting surface 14a of the reflector 14, a plurality of reflecting elements 14aAs constituting each fan-shaped region 14aA appear to shine discretely and brightly in the radial direction and the circumferential direction with respect to the optical axis As. At that time, the reflective elements 14aAs located at the outermost peripheral edge of each sector area 14aA appear to shine brightly between the protrusions 14b located on both sides thereof.

  Further, since the surfaces of the plurality of step portions 14aBs and the window portion 14c constituting each intermediate region 14aB located between the respective sector regions 14aA also reflect light from each light emitting diode 12 incident as stray light, the optical axis Ax appears discretely and slightly bright in the radial direction. And the other area | region in the reflective surface 14a of the reflector 14 is shining thinly with the said stray light, and the front side surface of each protrusion part 14b is hardly visible.

  As described above in detail, the vehicle marker lamp 10 according to the present embodiment is configured to reflect the light from the 17 light emitting diodes 12 toward the front of the lamp by the reflector 14. The light emitting diodes 12 are arranged in the vicinity of the outer peripheral edge of the reflector 14 at equal intervals in the circumferential direction with respect to the optical axis Ax extending in the front-rear direction of the lamp, and the reflecting surface 14 a of the reflector 14 is arranged on each light emitting diode 12. Is reflected in the reflection area located on the opposite side of the light-emitting diode 12 with respect to the optical axis Ax, so that the lamp is made thin and the lamp is turned on. It is possible to make the reflecting surface 14a of the reflector 14 look bright and shiny.

  In addition, the vehicular marker lamp 10 according to the present embodiment has 17 protrusions 14b at equal intervals in the circumferential direction with respect to the optical axis Ax in the vicinity of the outer peripheral edge of the reflecting surface 14a of the reflector 14. Each of the light emitting diodes 12 is disposed in the vicinity of the rear of each of the protrusions 14b, and the light from each of the light emitting diodes 12 is irradiated toward the optical axis Ax. Since the window part 14c for this is formed, the following effects can be obtained.

  That is, the light from each light emitting diode 12 is irradiated toward the optical axis Ax through the window portion 14c of each projecting portion 14b, and the lamp in the reflection region located on the opposite side of the light emitting diode 12 with respect to the optical axis Ax. Reflecting toward the front, these reflection regions are formed so as to extend also between the protrusions 14b and 14b adjacent to each other, and therefore the portions located between the protrusions 14b. Reflected light from the lamp is also irradiated forward of the lamp. For this reason, even though the 17 light emitting diodes 12 are arranged in the vicinity of the outer peripheral edge of the reflecting surface 14a of the reflector 14, when the lamp is turned on, the portions between the projecting portions 14b on the reflecting surface 14a are As a result, the outer peripheral edge of the reflecting surface 14a appears to shine, thereby ensuring a sufficient light emitting area of the reflector 14 and improving the visibility of the driver of the following vehicle.

  In addition, when a plurality of light emitting diodes are arranged so as to surround the reflector as in the prior art, an annular shape covering the plurality of light emitting diodes from the front side, which is necessary to ensure the appearance when the lamp is not lit. Therefore, the number of lamp parts can be reduced accordingly.

  Further, in the vehicular marker lamp 10 according to the present embodiment, each light emitting diode 12 is disposed in the vicinity of the rear of each protrusion 14b formed in the vicinity of the outer peripheral edge of the reflecting surface 14a of the reflector 14. As described above, the depth dimension corresponding to the space for arranging each light emitting diode, which is necessary when a plurality of light emitting diodes are disposed near the front of the reflector, becomes unnecessary, and the depth dimension of the reflector 14 itself is the depth dimension of the lamp. As a result, it is possible to further reduce the thickness of the lamp.

  As described above, according to the present embodiment, when the lamp is turned on, the reflecting surface 14a of the reflector 14 appears to shine brightly, and the light emission area is ensured as large as possible, and the lamp is further reduced in thickness and its components. The number of points can be reduced.

  In particular, in the present embodiment, each of the reflection areas on the reflection surface 14a of the reflector 14 is formed as a sector area 14aA centered on the optical axis Ax in the front view of the lamp, and these 17 sector areas 14aA are Since the optical axis Ax is discretely arranged in the circumferential direction, the reflecting surface 14a of the reflector 14 can be seen to shine discretely in the circumferential direction when the lamp is turned on. Therefore, it is possible to easily perform the reflection control for the light from the lamp with high accuracy, thereby further improving the visibility when the lamp is turned on.

  Moreover, since each of the fan-shaped regions 14aA is formed in a stepped shape in the radial direction with respect to the optical axis Ax, when the lamp is lit, the reflecting surface 14a of the reflector 14 shines discretely not only in the circumferential direction but also in the radial direction. In addition, it is possible to easily control the reflection of light from each light emitting diode 12 with higher accuracy.

  Further, the intermediate region 14aB located between the sectoral regions 14aA on the reflecting surface 14a of the reflector 14 is also formed stepwise in the radial direction with respect to the optical axis Ax, and the uppermost step portion in each of the intermediate regions 14aB. Are formed by the protrusions 14b, the shapes of the protrusions 14b can be made uncomfortable with the surface shapes of the other parts of the reflection surface 14a. The design as a whole can be harmonized.

  Further, in the present embodiment, the number of arranged light emitting diodes 12 is set to an odd number of 17 and the emitted light from each of the light emitting diodes 12 is directed to the optical axis Ax in the front view of the lamp. Since the condensing lens 20 that performs control for passing through the window portion 14c of each protrusion 14b as parallel light is disposed in the vicinity of the rear of each protrusion 14b, the light from each light emitting diode 12 is reflected to the reflector 14. Can be efficiently incident on one sector region 14aA located on the opposite side of each light-emitting diode 12 with respect to the optical axis Ax of the reflecting surface 14a, thereby making each sector region 14aA shine brighter.

  Of course, it is also possible to use a plano-convex lens or the like instead of the condenser lens 20 in the above embodiment.

  In the above embodiment, the number of light emitting diodes 12 arranged is 17. However, if the number of light emitting diodes 12 is an odd number, the number of arranged light emitting diodes 12 is set to a number different from 17. In addition, it is possible to obtain the same effects as those of the above embodiment.

  Further, in the above-described embodiment, the 17 light emitting diodes 12 are described as being arranged at equal intervals in the circumferential direction with respect to the optical axis Ax. In this case, substantially the same operational effects as in the case of can be obtained.

  Next, a modification of the above embodiment will be described.

  First, a first modification of the above embodiment will be described.

  FIG. 5 is a view similar to FIG. 2 showing a vehicular marker lamp 110 according to this modification.

  As shown in the figure, the vehicular marker lamp 110 according to the present modification has the same configuration of the reflector 14 and the translucent cover 16 as in the above embodiment, and the configuration of the light emitting diode 12 itself and The number of arrangement is the same as in the above embodiment, but the following configuration is different from that in the above embodiment.

  In other words, in the present modification, each light emitting diode 12 is fixedly supported by the light source holder 118 in a state of being disposed substantially in front of the lamp near the rear of each protrusion 14b. The light source holder 118 is formed of an annular metal member, similar to the light source holder 18 of the above embodiment, but its cross-sectional shape is slightly different from that of the light source holder 18.

  Further, in this modified example, the light emitted from the light emitting diodes 12 near the front of each of the light emitting diodes 12 in the vicinity of the rear of each projecting portion 14b is the same as that of the condenser lens 20 of the above embodiment in the front view of the lamp. An auxiliary reflector 122 is disposed as an optical member that performs control for passing through the window portion 14c of each protruding portion 14b as parallel light traveling toward the optical axis Ax.

  The auxiliary reflector 122 has a reflecting surface 122a formed of a rotating paraboloid having an axis Ax2 extending in the direction slightly inclined forward toward the optical axis Ax and passing through the light emission center of the light emitting diode 12. Have.

  Even in the case of adopting the configuration of the present modification, it is possible to obtain the same operational effects as in the case of the above embodiment.

  Next, a second modification of the above embodiment will be described.

  FIG. 6 is a view similar to FIG. 2 showing a vehicular marker lamp 210 according to this modification.

  As shown in the figure, the vehicular marker lamp 210 according to the present modification has the same configuration of the translucent cover 16, the configuration of the light emitting diodes 12 themselves, and the number of arrangement thereof as in the above embodiment. The following configuration is different from that of the above embodiment.

  That is, the basic structure of the reflector 214 of this modification is the same as that of the reflector 14 of the above embodiment, but the window 214c formed in each of the protrusions 214b is configured as an opening. This is different from the reflector 14 of the above embodiment. The reflector 214 is made of an opaque synthetic resin member.

  In the present modification, each light emitting diode 12 is disposed toward the optical axis Ax in the vicinity of the rear of each protrusion 214b, and is fixedly supported by the light source holder 218.

  Further, in this modification, a condensing lens 220 is disposed between each light emitting diode 12 and each window 214 c in the vicinity of the rear of each protrusion 214 b of the reflector 214, and is fixedly supported by the light source holder 218. Has been.

  Each of these condensing lenses 220 is not a Fresnel lens like the condensing lens 20 of the above-described embodiment, and an optical axis is an axis Ax3 extending in a direction slightly inclined rearward with respect to a direction orthogonal to the optical axis Ax. It consists of a plano-convex toroidal lens.

  Each condenser lens 220 converts the emitted light from each light-emitting diode 12 as parallel light toward the optical axis Ax when viewed from the front of the lamp, and in a cross section along the plane including the optical axis Ax. The parallel light traveling toward the optical axis Ax is allowed to pass through each window 214c as diffused light that slightly diffuses in the front-rear direction.

  The light source holder 218 is formed of an annular metal member, similar to the light source holder 18 of the above embodiment, but the cross-sectional shape thereof is slightly different from that of the light source holder 18.

  Even in the case of adopting the configuration of the present modification, it is possible to obtain the same operational effects as in the case of the above embodiment.

  In addition, in the vehicular marker lamp 210 according to this modification, the window 214c formed in each protrusion 214b of the reflector 214 is configured as an opening, so that the reflector 214 is made of a transparent synthetic resin member. This eliminates the need for construction, and the range of material selection can be expanded.

  Next, a third modification of the above embodiment will be described.

  FIG. 7 is a view similar to FIG. 1 showing a vehicular marker lamp 310 according to this modification.

  As shown in the figure, the vehicular marker lamp 310 according to this modification has the same basic configuration as that of the above embodiment, but the configuration of each protrusion 314b in the reflector 314 is the same as that of the above embodiment. It is different from the case.

  That is, the reflector 314 of this modification is formed such that the window 314c of each protrusion 314b extends with a constant thickness in the circumferential tangent direction with respect to the optical axis Ax, like the window 14c of the above embodiment. However, it is formed so that it gradually becomes thicker toward both ends. Specifically, as for the surface shape of each window portion 314c, a cross-sectional shape along a plane orthogonal to the optical axis Ax is set to a concave curve shape.

  As a result, the light from each light emitting diode 12 transmitted through each condenser lens 20 is diffused to some extent also in the circumferential tangent direction, and is opposite to each light emitting diode 12 with respect to the optical axis Ax on the reflecting surface 14a of the reflector 14. The light is incident not only on one sectoral region 14aA located on the side, but also on a pair of sectoral regions 14aA adjacent to both sides thereof. In addition, about the cross-sectional shape along the plane containing the optical axis Ax in these window parts 314c, it is the same as that of the case of the window part 14c of the said embodiment.

  In the case of adopting the configuration of this modification, it is possible to efficiently make the light from each light emitting diode 12 enter one sectoral region 14aA located on the opposite side of the light emitting diode 12 with respect to the optical axis Ax. Although it becomes difficult to do so, the light from one light emitting diode 12 can be incident on the three fan-shaped regions 14aA, so that the variation in brightness between the fan-shaped regions 14aA can be reduced as a whole on the reflecting surface 14a. Can do.

  Further, when the configuration of this modification is employed, even when the number of light emitting diodes 12 is set to an even number, the light from each light emitting diode 12 is transmitted between the protrusions 14b on the reflecting surface 14a. It is possible to make this part brightly shine by entering the part.

  In the above-described embodiment and each modification, the vehicle marker lamps 10, 110, 210, and 310 have been described as being tail lamps. However, other types of vehicle marker lamps (for example, stop lamps, clearance lamps, etc.) Even in this case, the same effect can be obtained.

The front view which shows the marker lamp for vehicles which concerns on one Embodiment of this invention II-II sectional view of Fig. 1 Detailed view of part III in Fig. 2 The front view which shows the marker lamp for vehicles which concerns on the said embodiment in the state which lighted the some light emitting diode simultaneously. The figure similar to FIG. 2 which shows the marker lamp for vehicles which concerns on the 1st modification of the said embodiment. The figure similar to FIG. 2 which shows the marker lamp for vehicles which concerns on the 2nd modification of the said embodiment. The figure similar to FIG. 1 which shows the vehicle marker lamp which concerns on the 3rd modification of the said embodiment.

Explanation of symbols

10, 110, 210, 310 Vehicle light 12 Light-emitting diode 12a Light-emitting chip 12b Substrate 12c Sealing resin member 14, 214, 314 Reflector 14a, 122a Reflective surface 14aA Fan-shaped region 14aAs Reflective element 14aB Intermediate region 14aBs Stepped portion 14b, 214b 314b Projection 14c, 214c, 314c Window 16 Translucent cover 18, 118, 218 Light source holder 20, 220 Condensing lens 122 Auxiliary reflector Ax Optical axis Ax1, Ax2, Ax3 Axis

Claims (5)

In a vehicle marker lamp comprising a plurality of light emitting diodes and a reflector that reflects light from each of the light emitting diodes toward the front of the lamp,
The plurality of light emitting diodes are arranged in the vicinity of the outer peripheral edge of the reflector at substantially equal intervals in the circumferential direction with respect to the optical axis extending in the front-rear direction of the lamp,
The reflecting surface of the reflector is configured to reflect the light from each of the light emitting diodes toward the front of the lamp in a reflection region located on the opposite side of the light emitting diode with respect to the optical axis,
Projections as many as the number of the plurality of light emitting diodes arranged in the vicinity of the outer peripheral edge of the reflecting surface of the reflector are formed at substantially equal intervals in the circumferential direction with respect to the optical axis. Each light emitting diode is arranged in the vicinity of the rear of the
A vehicular marker lamp, wherein a window for irradiating light from each light emitting diode toward the optical axis is formed in each protrusion. Each of the reflection regions on the reflection surface of the reflector is formed as a fan-shaped region centered on the optical axis in the front view of the lamp,
2. The vehicular marker lamp according to claim 1, wherein the plurality of fan-shaped regions are discretely arranged in a circumferential direction with respect to the optical axis.   3. The vehicular marker lamp according to claim 2, wherein each of the fan-shaped regions is formed in a step shape in a radial direction with respect to the optical axis. An intermediate region located between each of the sector regions on the reflecting surface of the reflector is formed in a step shape in the radial direction with respect to the optical axis,
4. The vehicular marker lamp according to claim 3, wherein the uppermost portion in each of the intermediate regions is formed by each of the protrusions. The arrangement number of the plurality of light emitting diodes is set to an odd number,
An optical member is disposed in the vicinity of the rear of each projection so as to control the light emitted from each light-emitting diode to pass through each window as substantially parallel light traveling toward the optical axis in front view of the lamp. The vehicular marker lamp according to any one of claims 1 to 4, wherein:

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