JP4300941B2 - Vehicle lighting - Google Patents

Description

  The present invention relates to a vehicular lamp that uses an LED as a light source and has a plurality of reflecting surfaces. Specifically, the present invention relates to a vehicular lamp in which a first light-emitting portion that emits light from a first LED and a second light-emitting portion that emits light from a second LED are obtained in a common area.

  This type of vehicular lamp is conventionally known (for example, Patent Document 1). The vehicular lamp includes a first LED (A1) arranged on the lower side of the lamp, a second LED (A2) arranged on the right side of the lamp, and the first LED ( A plurality of first reflecting surfaces (22s1) for reflecting light from A1) in a predetermined direction, that is, the light transmitting cover (14) side in front of the lamp, and the second LED irradiated from the right side to the left side of the lamp A plurality of second reflecting surfaces (22s2) for reflecting light from (A2) in substantially the same direction as the light reflecting direction of the plurality of first reflecting surfaces (22s1).

Hereinafter, the operation of the vehicle lamp will be described. When the first LED (A1) emits light, the light from the first LED (A1) is reflected by the plurality of first reflecting surfaces (22s1), passes through the translucent cover (14), and is emitted forward of the lamp. Further, when the second LED (A2) emits light, the light from the second LED (A2) is reflected by the plurality of second reflecting surfaces (22s2) and is transmitted through the light-transmitting cover (14) and forward of the lamp. Exit. As a result, the vehicular lamp has the first light emitting portion (the plurality of first reflecting surfaces (22s1) and the first light emitting surface by the light emission of the first LED (A1) in the common area, that is, the translucent cover (14)). A light emitting part substantially corresponding) and a second light emitting part (light emitting part substantially corresponding to the plurality of second reflecting surfaces (22s2)) by light emission of the second LED (A2) can be obtained.
JP 2003-68115 A

  The problem to be solved by the present invention is that in the above-mentioned vehicular lamp, when the first LED and the second LED emit light at the same time, a bright part and a dark part are generated in the light emitting part of the common area. That is, the vehicular lamp includes the light from the first LED (A1) and the second LED (A2) between the plurality of first reflection surfaces (22s1) and between the plurality of second reflection surfaces (22s2). There are provided a plurality of step portions (22r) where light from the light is not incident. For this reason, even if the said vehicle lamp light-emits 1st LED (A1) and 2nd LED (A2) simultaneously, the light from 1st LED (A1) and the light from 2nd LED (A2) are several. The plurality of step portions (22r) between the first reflecting surfaces (22s1) and between the plurality of second reflecting surfaces (22s2) are not incident. As a result, in the vehicle lamp, when the first LED (A1) and the second LED (A2) emit light at the same time, a plurality of first reflection surfaces (22s1) and a plurality of A bright portion of the second reflecting surface (22s2) and a dark portion of the plurality of step portions (22r) are generated.

According to the present invention (the invention according to claim 1) , a plurality of first reflection surfaces and a plurality of second reflection surfaces are alternately provided over the entire area in a common area, and the first LED and A first linear Fresnel prism element group is provided between the plurality of first reflecting surfaces, and a second linear Fresnel prism element group is provided between the second LED and the plurality of second reflecting surfaces. The first linear Fresnel prism element group transmits light from the first LED as it is in a cross section including the first LED and the plurality of first reflection surfaces, and reflects light from the plurality of first reflection surfaces. In the cross section orthogonal to the direction, the light from the first LED is refracted and transmitted as substantially parallel light, and the second linear Fresnel prism element group includes the second LED and a plurality of second reflecting surfaces. of Almost to directly transmit, and, in a cross section perpendicular to the optical reflection direction of the second reflecting surface of the plurality, it is refracted transmitted light from the first 2LED as substantially parallel light, among the inner lens, a plurality of second In a portion substantially corresponding to the range in which the reflected light from one reflection surface is incident, there are a plurality of concave portions recessed on the opposite side to the first reflection surface side or a plurality of convex portions protruding on the first reflection surface side. A plurality of inner lenses are provided, and a portion of the inner lens substantially corresponding to a range in which the reflected light from the plurality of second reflecting surfaces is incident protrudes toward the plurality of second reflecting surfaces. Or a plurality of concave portions recessed on the opposite side to the second reflecting surface side, and a plurality of concave portions and a plurality of convex portions of the inner lens are formed by the plurality of first reflecting surfaces. And a plurality of second reflecting surfaces, respectively. That provided alternately throughout substantially at in the A, characterized in that.

In the vehicular lamp according to the present invention (the invention according to claim 1) , for example, when the first LED is caused to emit light, there are a plurality of locations substantially corresponding to the plurality of concave portions or the convex portions of the inner lens and the plurality of first reflecting surfaces. Since the light is emitted in a stripe shape, the outline of the stripe-like light emission range at a plurality of locations of the inner lens becomes clear, and lighting as a lamp is clearly conspicuous. For this reason, the vehicular lamp according to the present invention (the invention according to claim 1) is preferable in terms of traffic safety because it allows other drivers and people around to recognize the presence of the lamp. Then, the vehicle lighting device of the present invention (the invention according to claim 1), when the first 1LED and Ru simultaneously emit light and a second 2LED, incident on the first reflecting surface light of the plurality of the first 1LED, and, Since the light from the second LED is incident on the plurality of second reflection surfaces, bright portions of the plurality of first reflection surfaces and the plurality of second reflection surfaces are obtained in the light emitting portion in the common area, and dark portions Does not occur. That is, in the vehicular lamp of the present invention (the invention according to claim 1), when the first LED and the second LED are caused to emit light at the same time, the plurality of recesses or projections of the inner lens and the plurality of first reflection surfaces are substantially the same. A plurality of corresponding portions emit light in a stripe shape, and a plurality of portions substantially corresponding to the plurality of convex portions or concave portions of the inner lens and the plurality of second reflecting surfaces emit light in a stripe shape. The stripe-shaped light emitting portions at the location and the stripe-shaped light emitting portions at the plurality of locations by the light emission of the second LED are combined, and the common area emits light over the entire surface. Thus, since the vehicular lamp of the present invention (the invention according to claim 1) can obtain only a bright portion in the light emitting portion of the common area, a bright portion and a dark portion are generated in the light emitting portion of the common area. The appearance is improved compared to the vehicular lamp. In the vehicle lamp of the present invention (the invention according to claim 1) , the light from the first LED and the second LED is sufficiently effectively used by the first linear Fresnel prism element group and the second linear Fresnel prism element group. Can do.

  Embodiments of a vehicular lamp according to the present invention will be described below in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments. In the following embodiments, “upper” and “lower” refer to “upper” and “lower” when the vehicular lamp is mounted on the vehicle.

  The accompanying drawings show an embodiment of a vehicular lamp according to the present invention. In this example, an example of a tail and stop lamp will be described. In the figure, reference numeral 1 denotes a vehicular lamp in this embodiment, which is a tail and stop lamp.

  As shown in FIG. 5, the tail and stop lamp 1 is combined with a turn signal lamp TL and a back lamp BL to constitute a rear combination lamp RCL. The front surface of the rear combination lamp RCL including the tail and stop lamp 1 is curved from the vehicle center side C to the vehicle side S and from the vehicle rear side B to the vehicle front side F as shown in FIGS. It is inclined. Further, the rear combination lamp RCL including the tail and stop lamp 1 is attached to the vehicle body 11 by means of attachment means (not shown) such as bolts and nuts via the packing 10, as shown in FIGS. As a result, the vehicle (not shown) is equipped on each of the left and right sides of the rear part. The tail and stop lamp 1 in the illustrated example is provided on the right side of the rear part of the vehicle.

  The tail and stop lamp 1 includes a lamp housing 2, an inner housing 3, an inner lens 4, a substantially transparent outer lens 5, first LED 6 and second LED 7 as a light source, and a plurality of first reflecting surfaces 8. A plurality of second reflecting surfaces 9 are provided.

  The lamp housing 2 is made of synthetic resin, for example. As shown in FIGS. 1 to 4 and FIGS. 6 to 8, the lamp housing 2 has a hollow structure in which a front surface 20 and a rear surface 21 are opened, and a peripheral side portion is closed. The inner housing 3 is fixed to the edge of the rear opening 21 of the lamp housing 2 by a screw 22. The inner lens 4 and the outer lens 5 are fixed to the edge of the front opening 20 of the lamp housing 2 by welding or the like. As a result, in the tail and stop lamp 1, the lamp chamber 12 is partitioned by the lamp housing 2, the inner housing 3, the inner lens 4, and the outer lens 5. In addition, the code | symbol 13 in FIG. 7 is a resin-made cover provided in the rear surface side of the said inner housing 3. In FIG.

  The plurality of, in this example, six first LEDs 6 are arranged on the first substrate 60 as shown in FIG. The first substrate 60 is fixed to the lamp housing 2 above the lamp chamber 12. As a result, the six first LEDs 6 are arranged on the upper side of the lamp chamber 12 of the tail and stop lamp 1, that is, on one side of the lamp. The six first LEDs 6 are tail and stop light sources and use LEDs that emit red light. Further, as shown in FIGS. 3 and 4, the six first LEDs 6 irradiate light L1 and LH1 from the upper side of one side of the lamp to the lower side of the other side.

  On the other hand, a plurality of the second LEDs 7 in this example, as in this example, are arranged on the second substrate 70 as shown in FIG. The second substrate 70 is fixed to the lamp housing 2 below the lamp chamber 12. As a result, the six second LEDs 7 are disposed below the lamp chamber 12 of the tail and stop lamp 1, that is, on the other side of the lamp. The six second LEDs 7 are light sources for stop and use LEDs that emit red light. Moreover, as shown in FIG. 4, the six second LEDs 7 irradiate light L2 and LH2 from the lower side of the other side of the lamp to the upper side of the one side.

  The six first LEDs 6 and the six second LEDs 7 are electrically connected to a power source (not shown) such as a battery. Further, as shown in FIG. 1, the 0 ° axes (O1-O1) of the six first LEDs 6 are inclined toward the first reflecting surface 8 with respect to optical axes Z1-Z1 described later. On the other hand, the 0 ° axis (O2-O2) of the six second LEDs 7 is inclined toward the second reflecting surface 9 with respect to an optical axis Z2-Z2 described later, as shown in FIG.

  As the six first LEDs 6 and the six second LEDs 7, general and standard LEDs (generally available LEDs) are used. That is, the LEDs 6 and 7 have a directivity angle (diffusion angle) of irradiation light of 30 ° to 35 ° with respect to the 0 ° axis (O1-O1, O2-O2), and the maximum luminous intensity (1.0) of the irradiation light. The LED having a standard directivity having an irradiation angle of 20 ° to 25 ° with respect to the 0 ° axis (O1-O1, O2-O2) is used. The directivity angle includes a line segment connecting the point of luminous intensity (0.5) and the point of luminous intensity (0) (light emitting sources 61 and 71) and the 0 ° axis (O1-O1, O2-O2). ) And directional characteristics (half-value angle). The irradiation angle of the maximum luminous intensity (1.0) of the irradiation light is a line segment connecting the point of the maximum luminous intensity (1.0) of the irradiation light and the point of luminous intensity (0) (light emission sources 61 and 71), It is an angle formed with the 0 ° axis (O1-O1, O2-O2).

  An inner surface of the inner housing 3 is subjected to aluminum vapor deposition, silver coating, or the like, and the plurality of first reflection surfaces 8 and the plurality of second reflection surfaces 9 are respectively formed. As shown in FIGS. 3 and 4, the plurality of first reflecting surfaces 8 emit light L1 and LH1 from the first LED 6 irradiated from the upper side of one side of the lamp to the lower side of the other side in a predetermined direction. That is, the light is reflected toward the inner lens 4 and the outer lens 5 side. On the other hand, as shown in FIG. 4, the plurality of second reflecting surfaces 9 receive the light L2 and LH2 from the second LED 7 irradiated from the lower side of the other side of the lamp to the upper side of the one side. The light is reflected in substantially the same direction as the light reflection direction of the first reflecting surface 8, that is, toward the inner lens 4 and the outer lens 5.

The plurality of first reflecting surfaces 8 are formed from a part of a paraboloid of revolution, and in this example, four first reflecting surfaces 8 are formed above and below the one first LED 6. That is, the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) respectively, as shown in FIG. 1, each of the light emitting sources 61 of the one first LED 6 (substantially regarded as point light sources). The focal lengths f11, f12, f13, and f14 are longer from a part of the rotating paraboloids F11, F12, F13, and F14 as they become the focal point and go from the top to the bottom (away from the one first LED 6). Is formed. The four upper and lower first reflecting surfaces 8 (81, 82, 83, 84) are substantially arranged within the range of the irradiation angles of the light L1, LH1 from the first LED 6. This irradiation angle range substantially coincides with the directivity angle (diffusion angle) range of the first LED 6. Further, the optical axes Z1-Z1 (rotary parabolas) of the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) formed from part of the rotary paraboloids F11, F12, F13, F14. The directions of the rotation axes of the surfaces F11, F12, F13, and F14 are substantially the same. The upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) may have different optical axes.

The plurality of second reflecting surfaces 9 are formed from a part of a paraboloid of revolution, similarly to the plurality of first reflecting surfaces 8. In this example, the plurality of second reflecting surfaces 9 are formed with respect to the one second LED 7. Four pieces are formed at the top and bottom. That is, the four upper and lower second reflecting surfaces 9 (91, 92, 93, 94) respectively constitute the light emitting sources 71 (substantially regarded as point light sources) of the one second LED 7 as shown in FIG. The focal lengths f21, f22, f23, and f24 are longer from a part of the rotating paraboloids F21, F22, F23, and F24 as they become the focal point and go from the top to the bottom (away from the one second LED 7). Is formed. The four upper and lower second reflecting surfaces 9 (91, 92, 93, 94) are substantially disposed within the range of the irradiation angles of the light L2, LH2 from the second LED 7. The range of the irradiation angle substantially coincides with the range of the directivity angle (diffusion angle) of the second LED 7. Further, the optical axes Z2-Z2 (rotary parabolas) of the upper and lower second reflecting surfaces 9 (91, 92, 93, 94) formed from a part of the rotary paraboloids F21, F22, F23, and F24. The directions of the surfaces F21, F22, F23, and F24) are substantially the same. The upper and lower four second reflecting surfaces 9 (91, 92, 93, 94) may have different optical axes.

  The upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) and the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94) are as shown in FIGS. In addition, the inner housing 3 is alternately formed on the inner surface. That is, from the top to the bottom of the inner housing 3, the upper first reflective surface 81 of the first reflective surface 8, the lower fourth reflective surface 94 of the second reflective surface 9, and the first The upper second-stage reflecting surface 82 of the first reflecting surface 8, the lower-third reflecting surface 93 of the second reflecting surface 9, the upper-third reflecting surface 83 of the first reflecting surface 8, A lower second reflective surface 92 of the second reflective surface 9, an upper fourth reflective surface 84 of the first reflective surface 8, and a lower first reflective surface 91 of the second reflective surface 9 are provided. It is continuously formed alternately up and down.

The upper first reflective surface 81 of the first reflective surface 8 is an arbitrary first boundary location 31 on the first paraboloid F11 of the first reflective surface 8 on the inner surface of the inner housing 3. And the second boundary part 32 where the first stage paraboloid F11 of the first reflecting surface 8 and the fourth stage paraboloid F24 of the second reflecting surface 9 intersect. Yes. The lower fourth reflective surface 94 of the second reflective surface 9 is the first parabolic surface F11 of the first reflective surface 8 and 4 of the second reflective surface 9 on the inner surface of the inner housing 3. A second boundary location 32 where the rotational paraboloid F24 of the step intersects, a second parabolic surface F12 of the first reflecting surface 8 and a fourth parabolic surface of the second reflecting surface 9. It is formed between the third boundary portion 33 where F24 intersects. The upper second reflective surface 82 of the first reflective surface 8 is formed on the inner surface of the inner housing 3 such that the second parabolic surface F12 of the first reflective surface 8 and the second reflective surface 9 are four. A third boundary portion 33 where the rotational paraboloid F24 of the step intersects, a second parabolic surface F12 of the first reflecting surface 8, and a third parabolic surface of the second reflecting surface 9. It is formed between the fourth boundary portion 34 where F23 intersects. The lower third reflective surface 93 of the second reflective surface 9 is the inner surface of the inner housing 3, the second parabolic surface F 12 of the first reflective surface 8 and the second reflective surface 9 . A fourth boundary portion 34 where the staged paraboloid F23 intersects, a third stage paraboloid F13 of the first reflecting surface 8, and a third stage paraboloid of the second reflecting surface 9. It is formed between the fifth boundary portion 35 where F23 intersects. The reflecting surface 83 of the third stage on the first reflecting surface 8, said the inner surface of the inner housing 3, 3 of the a paraboloid F13 of the third stage the second reflecting surface 9 of the first reflecting surface 8 A fifth boundary point 35 where the stepped paraboloid F23 intersects, a third step paraboloid F13 of the first reflecting surface 8, and a second stepped paraboloid of the second reflecting surface 9. It is formed between the sixth boundary portion 36 where F22 intersects. The lower second reflecting surface 92 of the second reflecting surface 9 is formed on the inner surface of the inner housing 3, the second parabolic surface F 13 of the first reflecting surface 8 and the second reflecting surface 9 . A sixth boundary portion 36 where the rotational paraboloid F22 of the step intersects, a rotational parabolic surface F14 of the fourth step of the first reflecting surface 8, and a second parabolic surface of the second reflecting surface 9. It is formed between the seventh boundary point 37 where F22 intersects. On the inner surface of the inner housing 3, the upper fourth reflective surface 84 of the first reflective surface 8 is a second parabolic surface F 14 of the first reflective surface 8 and 2 of the second reflective surface 9 . A seventh boundary portion 37 where the rotational paraboloid F22 of the step intersects, a fourth parabolic surface F14 of the first reflecting surface 8, and a first rotating paraboloid of the second reflecting surface 9. It is formed between the eighth boundary point 38 where F21 intersects. The reflecting surface 91 of the lower first level of the second reflecting surface 9, the the inner surface of the inner housing 3, 1 of the fourth-stage rotary parabolic F14 second reflecting surface 9 of the first reflecting surface 8 It is formed between an eighth boundary point 38 where the stepped paraboloid F21 intersects and an arbitrary ninth boundary point 39 on the first step paraboloid F21 of the second reflecting surface 9. Yes.

  The upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) are respectively formed with respect to the one first LED 6, and therefore when the number of the first LEDs 6 is six, 4 × 6 = 24, that is, 24 first reflecting surfaces 8 (81, 82, 83, 84) are respectively formed on the inner surface of the inner housing 3. On the other hand, since the four upper and lower second reflecting surfaces 9 (91, 92, 93, 94) are respectively formed for the one second LED 7, when the number of the second LEDs 7 is six, 4 × 6 = 24, that is, 24 second reflecting surfaces 9 (91, 92, 93, 94) are formed on the inner surface of the inner housing 3, respectively. As shown in FIGS. 11 and 12, the 24 first reflecting surfaces 8 (81, 82, 83, 84) and the 24 second reflecting surfaces 9 (91, 92, 93, 94) In the common area, that is, in the light emitting portions of the inner lens 4 and the outer lens 5 (the hatched portions in FIGS. 11 and 12), they are alternately provided over almost the entire area. As a result, the 24 first reflecting surfaces 8 (81, 82, 83, 84) and the 24 second reflecting surfaces 9 (91, 92, 93, 94) are alternately arranged as a common area. It is an area that is disposed and corresponds to the light emitting portions of the inner lens 4 and the outer lens 5.

  Between the first LED 6 of each unit and the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84), as shown in FIGS. A prism element group 40 is provided. The first linear Fresnel prism element group 40 is integrally provided at the upper end of the inner lens 4. As shown in FIGS. 3 and 4, the first linear Fresnel prism element group 40 includes the first LED 6 and the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84). The light L1 from the first LED 6 is transmitted almost as it is. Further, as shown in FIG. 9, the first linear Fresnel prism element group 40 includes light (lights in FIGS. 3 and 4) of the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84). LR1) Light L1 from the first LED 6 is refracted and transmitted as substantially parallel light LH1 in a cross section orthogonal to the reflection direction (optical axis Z1-Z1 direction).

  Between the second LED 7 of each unit and the four upper and lower second reflection surfaces 9 (91, 92, 93, 94), as shown in FIGS. A prism element group 41 is provided. The second linear Fresnel prism element group 41 is integrally provided at the lower end of the inner lens 4. As shown in FIG. 4, the second linear Fresnel prism element group 41 is formed from the second LED 7 in a cross section including the second LED 7 and the four upper and lower second reflecting surfaces 9 (91, 92, 93, 94). The light L2 is transmitted almost as it is. Further, as shown in FIG. 10, the second linear Fresnel prism element group 10 reflects light (light LR2 in FIG. 4) of the four upper and lower second reflecting surfaces 9 (91, 92, 93, 94). In a cross section orthogonal to the direction (optical axis Z2-Z2 direction), the light L2 from the second LED 7 is refracted and transmitted as substantially parallel light LH2.

  The one first LED 6, the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84), the one first linear Fresnel prism element group 40, the one second LED 7, The four upper and lower second reflecting surfaces 9 (91, 92, 93, 94) and the one second linear Fresnel prism element group 41 are set as one unit. Therefore, the tail and stop lamp 1 of this example has six units. As shown in FIGS. 6 to 8, the six units are arranged so as to be displaced in the front-rear direction along the curved slope of the front surface of the tail and stop lamp 1. That is, the first LED 6 and the first reflecting surface 8 (81, 82, 83, 84), the second reflecting surface 9 (91, 92, 93, 94) and the second LED 7 (from FIG. 6) of the unit on the vehicle center side C Although not shown in FIG. 8, the first linear Fresnel prism element group 40 and the second linear Fresnel prism element group 41) are arranged on the vehicle rear side B, and the first LED 6 and the second LED of the unit on the vehicle side S are arranged. 1 reflective surface 8 (81, 82, 83, 84), 2nd reflective surface 9 (91, 92, 93, 94) and 2nd LED7 (It is not illustrated in FIGS. 6-8, but 1st The linear Fresnel prism element group 40 and the second linear Fresnel prism element group 41) are disposed on the vehicle front side F. The number of units is six in this example, but may be one or a plurality other than six. The six units are arranged so as to be displaced in the front-rear direction, but may be arranged linearly in the left-right direction (lateral direction). Furthermore, the light irradiation directions of the plurality of units (lights LR1 and LR2 in FIGS. 3 and 4), that is, the direction parallel to the optical axis Z1-Z1 of the first reflecting surface 8 and the second reflecting surface 9 The direction parallel to the optical axis Z2-Z2 may be aligned in the same direction, or may be shifted vertically and horizontally.

  The light (light LR1 in FIGS. 3 and 4) of the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84) in the reflection direction (optical axis Z1-Z1 direction) side, and the upper and lower four The inner lens 4 is disposed on the light (light LR2 in FIG. 4) reflection direction (optical axis Z2-Z2 direction) side of the second reflection surface 9 (91, 92, 93, 94). A portion of the inner lens 4 that substantially corresponds to a range in which reflected light (light LR1 in FIGS. 3 and 4) from the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84) is incident. Each of the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) is provided with four concave portions 42 that are recessed on the opposite side. Further, in the inner lens 4, a portion substantially corresponding to a range in which reflected light (light LR <b> 2 in FIG. 4) from the four upper and lower second reflecting surfaces 9 (91, 92, 93, 94) is incident. Are provided with four convex portions 43 that protrude toward the four upper and lower second reflecting surfaces 9 (91, 92, 93, 94). Further, the four concave portions 42 and the four convex portions 43 of the inner lens 4 are formed by the four upper and lower first reflecting surfaces 8 (81, 82, 83, and 84) and the upper and lower four fourth portions. 2 corresponding to each of the reflecting surfaces 9 (91, 92, 93, 94), that is, a common area, that is, a light emitting portion of the inner lens 4 and the outer lens 5 (in FIG. 11 and FIG. Are provided alternately almost throughout.

  The concave portion 42 and the convex portion 43 may be provided in reverse. That is, a convex portion is provided in a portion of the inner lens 4 substantially corresponding to a range in which the reflected light LR1 from the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84) is incident, You may provide a recessed part in the part substantially corresponding to the range in which the reflected light LR2 from the four 2nd reflective surfaces 9 (91, 92, 93, 94) injects.

  The upper and lower horizontal walls forming the boundary between the four concave portions 42 and the four convex portions 43 are the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) and the upper and lower four walls. It substantially corresponds to the first boundary portion 31 to the ninth boundary portion 39 that form a boundary between the second reflecting surfaces 9 (91, 92, 93, 94). That is, the first boundary portion 31 to the ninth boundary portion 39 are substantially located on the extension line of the horizontal wall.

As shown in FIGS. 1 to 4, on the outer surface of the four concave portions 42 of the inner lens 4 (surface facing the outer lens 5), a cylindrical light diffusion prism element (so-called so-called axial direction) is provided. Each of the six horizontal prisms 44) is provided. Also, on the outer surface of the four convex portions 43 of the inner lens 4, as shown in FIGS. 1 to 4, two cylindrical light diffusing prism elements (so-called lateral kamaboko prisms) 45 whose axes are in the horizontal direction are provided. Each one is provided. The light diffusing prism element group may be other than the cylindrical type described above. Further, as shown by a two-dot chain line in FIG. 1 , the shafts are vertically arranged on the four concave portions 42 of the inner lens 4 and the inner surface of the four convex portions 43 (surface opposite to the outer lens 5). One or a plurality of directional cylindrical light diffusion prism elements (so-called vertical prismatic prisms) 46 and 47 may be provided. Furthermore, conversely, the vertical prismatic prisms 46 and 47 may be provided on the outer surfaces of the concave portion 42 and the convex portion 43, and the horizontal prismatic prisms 44 and 45 may be provided on the inner surface of the concave portion 42 and the convex portion 43, respectively. Furthermore, the horizontal and vertical prisms 44 and 45 and the vertical and vertical prisms 46 and 47 may not be provided on the outer and inner surfaces of the concave portion 42 and the convex portion 43.

  The tail and stop lamp 1 which is a vehicular lamp according to this embodiment is configured as described above, and the operation thereof will be described below.

  For example, when a light switch (not shown) is turned on, the first LED 6 emits light. Then, as shown in FIG. 3, the light L1 from the first LED 6 passes through the first linear Fresnel prism element group 40 almost as it is, and enters the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84). Incident. Further, as shown in FIG. 9, the light L1 from the first LED 6 is refracted and transmitted through the first linear Fresnel prism element group 40 to form substantially parallel light LH1, and the four upper and lower first reflecting surfaces 8 (81, 82, 83). , 84). Lights L1 and LH1 incident on the four upper and lower first reflecting surfaces 8 (81, 82, 83, and 84) are optical axes Z1- in the upper and lower four first reflecting surfaces 8 (81, 82, 83, and 84). The reflected light LR1 substantially parallel to Z1 is reflected to the inner lens 4 and outer lens 5 side. The reflected light LR1 substantially parallel to the optical axis Z1-Z1 becomes upper and lower four light beams corresponding to the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84). The upper and lower four reflected lights LR1 substantially parallel to the optical axis Z1-Z1 are transmitted through the upper and lower concave portions 42 of the inner lens 4 and are diffused in the vertical direction by the light diffusion prism element group 44. The reflected light LR1 diffused in the vertical direction passes through the outer lens 5 and is irradiated to the outside.

  At this time, when the tail and stop lamp 1 which is a vehicle lamp according to this embodiment is viewed from the front surface (vehicle rear side B), the inner lens 4 and the outer lens 5 have the inner lens 4 as shown in FIG. Four portions (the hatched portions in FIG. 11) substantially corresponding to the upper and lower concave portions 42 and the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) are in a horizontal stripe shape. Emits light. Here, since the first LED 6 is a light source that emits red light for tail and stop, the tail and stop lamp 1 emits red light at the four locations of the horizontal stripe as the tail LED when the first LED 6 emits light. Function.

  Further, for example, when a brake switch (not shown) is turned on while the light switch is ON, the second LED 7 emits light while the first LED 6 is in the light emitting state. Then, as described above, the light L1 from the first LED 6 passes through the outer lens 5 as reflected light LR1, and is irradiated to the outside. On the other hand, as shown in FIG. 4, the light L2 from the second LED 7 passes through the second linear Fresnel prism element group 41 almost as it is and enters the upper and lower second reflecting surfaces 9 (91, 92, 93, 94). Incident. Further, as shown in FIG. 10, the light L2 from the second LED 7 is refracted and transmitted through the second linear Fresnel prism element group 41 to form substantially parallel light LH2, and the upper and lower second reflecting surfaces 9 (91, 92, 93). , 94). Lights L2 and LH2 incident on the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94) are optical axes Z2− on the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94). The reflected light LR2 that is substantially parallel to Z2 is reflected to the inner lens 4 and the outer lens 5 side. The reflected light LR2 substantially parallel to the optical axis Z2-Z2 becomes upper and lower four light beams corresponding to the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94). The upper and lower four reflected lights LR2 substantially parallel to the optical axis Z2-Z2 are transmitted through the upper and lower four convex portions 43 of the inner lens 4 and diffused in the vertical direction by the light diffusion prism element group 45. The reflected light LR2 diffused in the vertical direction passes through the outer lens 5 and is irradiated to the outside.

  At this time, when the tail and stop lamp 1 which is a vehicle lamp according to this embodiment is viewed from the front (vehicle rear side B), the inner lens 4 and the outer lens 5 emit light over the entire surface as shown in FIG. (In FIG. 12, the hatched portions are the light emitting portions of the inner lens 4 and the outer lens 5). That is, when the second LED 7 emits light, the upper and lower four convex portions 43 and the upper and lower four second reflecting surfaces 9 (91, 92, 93) of the inner lens 4 are substantially the same as in the case of the light emission of the first LED 6 described above. , 94) substantially emits light in a horizontal stripe shape. Four horizontal stripe light emitting portions (reference numerals 43, 9, 91, 92, 93, 94 in FIG. 12) by the light emission of the second LED 7 and four horizontal stripe light emitting portions by the light emission of the first LED 6 ( In FIG. 12, reference numerals 42, 8, 81, 82, 83, 84) are combined, and the inner lens 4 and the outer lens 5 emit light over the entire surface. Here, since the first LED 6 is a light source that emits red light for tail and stop, while the second LED 7 is a light source that emits red light for stop, the tail and stop lamp 1 is connected to the first LED 6. When the second LED 7 emits light, the entire surface emits red light and functions as a stop lamp.

  The tail and stop lamp 1 which is a vehicular lamp according to this embodiment is configured as described above, and the effects thereof will be described below.

  In the tail and stop lamp 1 which is a vehicle lamp according to this embodiment, when the first LED 6 and the second LED 7 emit light at the same time, the light L1 and LH1 from the first LED 6 are four first reflecting surfaces 8 (81 and 82). , 83, 84), and the light L2, LH2 from the second LED 7 enters the upper and lower second reflecting surfaces 9 (91, 92, 93, 94). For this reason, the tail-and-stop lamp 1 which is a vehicle lamp according to this embodiment has a common area, that is, a light emitting portion of the inner lens 4 and the outer lens 5 (in FIG. 11 and FIG. Bright portions of the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) and the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94). Is obtained, and dark portions do not occur. Thus, since the tail and stop lamp 1 which is the vehicle lamp according to this embodiment can obtain only a bright part in the light emitting part in the common area, the bright part and the dark part in the light emitting part in the common area are obtained. The appearance is improved as compared with the generated vehicular lamp.

  In particular, in the tail and stop lamp 1 which is a vehicle lamp according to this embodiment, the upper and lower first reflecting surfaces 8 (81, 82, 83, 84) each have a light emitting source 61 of one first LED 6. The focal lengths f11, f12, f13, and f14 are formed from a part of the long paraboloids F11, F12, F13, and F14 as the distance from the first LED 6 increases. Each of the second reflecting surfaces 9 (91, 92, 93, 94) is focused on the light emitting source 71 of one second LED 7, and the focal lengths f21, f22, f23 and f24 are formed from a part of long paraboloids F21, F22, F23, and F24.

  For this reason, the tail and stop lamp 1 which is a vehicle lamp according to this embodiment includes the light L1 and LH1 from the first LED 6 and the four upper and lower first reflecting surfaces 8 (81, 82, 83 and 84). ) Is reflected as parallel light parallel to the optical axis Z1-Z1 of the first reflecting surface 8, while the light L2 and LH2 from the second LED 7 includes four upper and lower second reflections. Since the reflected light LR2 reflected by the surface 9 (91, 92, 93, 94) is obtained as parallel light parallel to the optical axis Z2-Z2 of the second reflecting surface 9, the reflected light LR1, LR2 of the parallel light is obtained. Light control is easy. For example, as shown in this example, the light diffusing prism element groups 44 and 45 (46 and 47) facilitate light control for diffusing the parallel reflected light beams LR1 and LR2 in the vertical direction (left-right direction).

  In addition, the tail-and-stop lamp 1 which is a vehicle lamp according to this embodiment has one focal length f11, f12, f13, f14 of the upper and lower first reflecting surfaces 8 (81, 82, 83, 84). By elongating the distance from the first LED 6, the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) are directed obliquely upward. For this reason, the tail and stop lamp 1 which is a vehicle lamp according to this embodiment is configured such that, for example, when the first LED 6 is not emitting light such as daytime, external light (not shown) such as sunlight is emitted from the outer lens 5 and Since it passes through the inner lens 4 and is incident and reflected on the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84), a high-brightness glittering feeling and crystal feeling can be obtained. Thereby, this tail and stop lamp 1 can improve commercial value. In particular, as shown in this example, the first reflecting surface 8 (81, 82, 83, 84) of 4 upper and lower 4 left and right 6 in total gives a brighter glitter and crystal, Value will be improved.

  In addition, the tail and stop lamp 1 which is a vehicle lamp according to this embodiment has four first reflecting surfaces 8 which are different from each other in focal lengths f11, f12, f13, f14 and f21, f22, f23, f24. (81, 82, 83, 84) and the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94) are provided alternately, so the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) are different from each other. As a result, the tail and stop lamp 1 that is the vehicle lamp according to this embodiment has different directions in which external light is reflected by the upper and lower first reflecting surfaces 8 (81, 82, 83, 84). As a result, a high-brightness glittering feeling and crystal feeling can be surely obtained.

  Furthermore, as shown in FIG. 7, the tail and stop lamp 1 which is a vehicular lamp according to this embodiment includes six first and second first reflecting surfaces 8 (81, 82, 83, 84). Since the unit of is displaced in the front-rear direction, the range in which external light is incident on the first reflecting surface 8 (81, 82, 83, 84) is compared with the range when the unit is not displaced, Become wider. As a result, the tail and stop lamp 1 that is the vehicular lamp according to this embodiment can surely obtain a high-brightness glitter and crystal.

  Furthermore, in the tail and stop lamp 1 that is a vehicle lamp according to this embodiment, the upper and lower first reflecting surfaces 8 (81, 82, 83, 84) are divided into two or more upper and lower parts, or Further, when divided into left and right or obliquely, a high-brightness glittering feeling and crystal feeling due to external light from the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84) can be obtained.

  Furthermore, the tail-and-stop lamp 1 which is a vehicular lamp according to this embodiment has four upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) provided alternately. Since the external light is reflected by the two reflecting surfaces 9 (91, 92, 93, 94), the four reflective surfaces 9 (81, 82, 83, 84) of the upper and lower first reflecting surfaces 8 (81, 82, 83, 84) have a glittering feeling and a crystal feeling. As a result of this synergistic effect, it is possible to obtain a brighter glittering feeling and crystal feeling.

  Furthermore, the tail-and-stop lamp 1 which is a vehicle lamp according to this embodiment has one focal length f11, f12, f13, f14 of the upper and lower first reflecting surfaces 8 (81, 82, 83, 84). By making it longer as the distance from the first LED 6 becomes longer, the width in the front-rear direction of the lamp can be made smaller than the width in the case of a reflecting surface with a single focal length, so that the lamp can be downsized. it can.

  Furthermore, the tail and stop lamp 1 which is a vehicle lamp according to this embodiment has four upper and lower parts formed from part of the paraboloids F11, F12, F13, F14, F21, F22, F23, and F24. The first reflecting surface 8 (81, 82, 83, 84) and the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94) allow light L1, LH1, L2, Since four bundles of reflected light LR1 and LR2 which are LH2 and are substantially parallel to each other can be obtained, the tail lamp function and the stop lamp function can be sufficiently achieved.

  In particular, the tail-and-stop lamp 1 which is a vehicle lamp according to this embodiment includes a first linear Fresnel prism between the first LED 6 and the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84). An element group 40 is provided. The first linear Fresnel prism element group 40 includes a first LED 6 and upper and lower first reflecting surfaces 8 (81, 82, 83, 84). Light L1 is transmitted almost as it is, and light from the first LED 6 is substantially parallel light LH1 in a cross section orthogonal to the light reflection direction of the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84). On the other hand, a second linear Fresnel prism element group 41 is provided between the second LED 7 and the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94). In the cross section including the second LED 7 and the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94), the Fresnel prism element group 41 transmits the light L2 from the second LED 7 almost as it is, and the upper and lower four pieces. In the cross section perpendicular to the light reflection direction of the second reflection surface 9 (91, 92, 93, 94), the light from the second LED 7 is refracted and transmitted as substantially parallel light LH2.

For this reason, in the cross section shown in FIGS. 9 and 10, the tail and stop lamp 1 which is a vehicle lamp according to this embodiment is configured such that the light L1 and L2 from the first LED 6 and the second LED 7 are the first linear Fresnel prism element group. 40, the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) and the upper and lower four second reflecting surfaces as substantially parallel lights LH1 and LH2 that are refracted and transmitted by the second linear Fresnel prism element group 41. 9 (91, 92, 93, 94) is incident and reflected. As a result, the tail-and-stop lamp 1 which is a vehicle lamp according to this embodiment is configured such that the light L1 and L2 from the first LED 6 and the second LED 7 are directly provided in the upper and lower four first reflecting surfaces 8 (81, 81) along the irradiation direction. 82, 83, 84), which is incident and reflected on the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94) (in the optical paths indicated by the two-dot chain arrows in FIGS. 9 and 10). Thus, the lights L1 and L2 from the first LED 6 and the second LED 7 can be used effectively.

Further, in the cross section shown in FIGS. 3 and 4, the tail and stop lamp 1 which is a vehicle lamp according to this embodiment is configured such that the light L1 and L2 from the first LED 6 and the second LED 7 are the first linear Fresnel prism element group 40, The light passes through the second linear Fresnel prism element group 41 almost as it is, and the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84) and the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94). As a result, the tail-and-stop lamp 1 which is a vehicle lamp according to this embodiment has a directivity angle (diffusion angle) of irradiation light of 30 ° to 35 ° with respect to the 0 ° axis (O1-O1, O2-O2). The first LED 6 having the standard directivity characteristic in which the irradiation angle of the maximum luminous intensity (1.0) of the irradiation light is an angle of 20 ° to 25 ° with respect to the 0 ° axis (O1-O1, O2-O2), Lights L1 and L2 from 2LEDs 7 are effective on the upper and lower four first reflecting surfaces 8 (81, 82, 83, and 84) and the upper and lower four second reflecting surfaces 9 (91, 92, 93, and 94), respectively. It is possible to use it by making it incident on.

  That is, the tail-and-stop lamp 1 which is a vehicular lamp according to this embodiment has four upper and lower first reflecting surfaces 8 arranged within the range of irradiation angles of the light L1 and L2 from the first LED 6 and the second LED 7. (81, 82, 83, 84), and the upper and lower four second reflecting surfaces 9 (91, 92, 93, 94), the light L1.L2 from the first LED 6 and the second LED 7 can be used sufficiently effectively. .

  More particularly, the tail-and-stop lamp 1 which is a vehicle lamp according to this embodiment is configured to receive reflected light LR1 from the upper and lower first reflecting surfaces 8 (81, 82, 83, 84) of the inner lens 4. Four concave portions 42 are provided in portions substantially corresponding to the incident range, and on the other hand, the reflected light LR2 from the upper and lower second reflecting surfaces 9 (91, 92, 93, 94) is incident and Four convex portions 43 are provided in substantially corresponding portions, and the four concave portions 42 and the four convex portions 43 are almost entirely covered in the inner lens 4 and the outer lens 5 in the common area. It is provided alternately.

For this reason, the tail and stop lamp 1 which is a vehicle lamp according to this embodiment has four upper and lower first reflecting surfaces 8 (81, 82, 83, 84) as shown in FIGS. Since the range of the reflected light LR1 substantially corresponds to the four concave portions 42 of the inner lens 4, the emission ranges of the four horizontal stripes in the inner lens 4 and the outer lens 5 (the hatched lines in FIG. 11 are given). The outline of the ranges 42, 8, 81, 82, 83, 84) becomes clear, and the lighting as a tail lamp becomes clearly conspicuous. For this reason, the tail-and-stop lamp 1 which is a vehicular lamp according to this embodiment is preferable in terms of traffic safety because the driver of the following vehicle and the surrounding people can recognize the presence of the tail lamp.

In addition, the tail and stop lamp 1 which is a vehicular lamp according to this embodiment has four upper and lower first reflecting surfaces 8 (81, 82, 83, 84) substantially corresponding to the four concave portions 42 of the inner lens 4. Is formed from a part of the rotary paraboloids F11, F12, F13, and F14 focusing on the light emission source 61 of one first LED 6, the upper and lower four first reflecting surfaces 8 (81, 82, 83, 84), four bundles of reflected light LR1 parallel to the optical axis Z1-Z1 can be reliably incident on the four concave portions 42 of the inner lens 4. Thus, the tail and stop lamp 1, the range hatched is applied in the emission range (in FIG. 11 of the four horizontal stripes in the inner lens 4 and the outer lens 5 42 This is a vehicle lamp according to an embodiment, 8, 81, 82, 83, 84), the contour becomes clearer, and the lighting as the tail lamp becomes more conspicuous.

  Further, the tail-and-stop lamp 1 as a vehicle lamp according to this embodiment connects the four upper and lower first reflecting surfaces 8 (81, 82, 83, 84) of six units linearly in the left-right direction. Therefore, as shown in FIG. 11, four straight light-emitting stripes in the left-right direction with clear outlines are obtained. In addition, the freedom degree of a light emission design will increase further by making this light emission stripe into a curve, an up-down direction, or slanting.

  Moreover, the tail-and-stop lamp 1 which is a vehicular lamp according to this embodiment includes four upper and lower first reflecting surfaces 8 (81, 82, 83, 84) and four upper and lower second reflecting surfaces 9 (91, 91). 92, 93, and 94) are disposed so as to be displaced forward and backward, so that the ranges and shapes of the light emitting portions in the inner lens 4 and the outer lens 5, that is, in the inner lens 4 and the outer lens 5, are arranged. This increases the degree of freedom of the light emitting design and the degree of freedom of light distribution design.

  Further, the tail and stop lamp 1 which is a vehicle lamp according to this embodiment includes four upper and lower first reflecting surfaces 8 (81, 82, 83, 84) and four upper and lower second reflecting surfaces 9 (91, 91). 92, 93, 94) by changing the directions of the optical axes Z1-Z1 and Z2-Z2, the reflection directions of the eight substantially parallel reflected lights LR1 and LR2 are changed. The degree of freedom of the design (the range and shape of the light emitting part in the inner lens 4 and the outer lens 5) and the degree of freedom of light distribution design are further increased.

  Furthermore, since the tail and stop lamp 1 which is a vehicular lamp according to this embodiment has a transparent outer lens 5, there is no possibility that the glittering feeling when the first LED 6 does not emit light is impaired.

  Furthermore, the tail and stop lamp 1 which is a vehicular lamp according to this embodiment includes a light diffusion prism element group 44, 45 (46, 46) provided on the outer surface or inner surface of the concave portion 42 and the convex portion 43 of the inner lens 4. 47), the light emitting portions of the inner lens 4 and the outer lens 5 are enlarged, and the light emitting portions emit light uniformly, so that the lighting of the tail and stop lamp 1 becomes more conspicuous.

  Furthermore, in the tail and stop lamp 1 which is a vehicular lamp according to this embodiment, the 0 ° axis (O1-O1, O2-O2) of the first LED 6 and the second LED 7 is relative to the optical axes Z1-Z1, Z2-Z2. The first reflecting surface 8 and the second reflecting surface 9 are inclined. Thereby, the tail and stop lamp 1 which is a vehicle lamp according to this embodiment includes four first reflecting surfaces 8 (81, 82, 83, 84) on the upper and lower sides from the first LED 6 and the second LED 7; 2 Since the irradiation angles of the light L1 and L2 irradiated to the reflecting surface 9 (91, 92, 93, 94) substantially coincide with the irradiation angle of the maximum luminous intensity (1.0) of the irradiation light of the first LED 6 and the second LED 7, The luminous efficiency of the first LED 6 and the second LED 7 is improved.

  In the above-described embodiment, the vehicular lamp has been described with respect to the tail and stop lamp 1. However, the present invention is not limited to the tail and stop lamp 1, for example, a high-mount tail and stop lamp, a combination of a turn signal lamp and a tail lamp. A lamp or a combination lamp of a turn signal lamp and a stop lamp may be used.

It is sectional drawing which shows the Example of the vehicle lamp concerning this invention, Comprising: It is the А-A sectional view taken on the line in FIG. 5 which shows the structure of four upper and lower 1st reflective surfaces. Similarly, it is the А-A sectional view taken on the line in FIG. 5 which shows the structure of four upper and lower 2nd reflective surfaces. FIG. 6 is a cross-sectional view taken along the line A-A in FIG. FIG. 6 is a cross-sectional view taken along the line А-A in FIG. 5 showing the reflecting action of the upper and lower four first reflecting faces and the reflecting action of the upper and lower four second reflecting faces. Similarly, it is a front view showing a rear combination lamp including a tail and stop lamp. It is the VI-VI sectional view taken on the line in FIG. It is the VII-VII sectional view taken on the line in FIG. It is the VIII-VIII sectional view taken on the line in FIG. It is the IX-IX sectional view taken on the line in FIG. It is XX sectional drawing in FIG. It is explanatory drawing which shows the light emission state of four horizontal stripes of the inner lens and the outer lens at the time of light emission of 1st LED. It is explanatory drawing which shows the light emission state of the whole surface of an inner lens and an outer lens at the time of light emission of 1st LED and 2nd LED.

Explanation of symbols

1 Tail and stop lamp (vehicle lamp)
DESCRIPTION OF SYMBOLS 10 Packing 11 Car body 12 Lamp chamber 13 Cover 2 Lamp housing 20 Front opening 21 Rear opening 22 Screw 3 Inner housing 31-39 First to ninth boundary points 4 Inner lens 40 First linear Fresnel prism element group 41 Second linear Fresnel prism element group 42 Concave part 43 Convex part 44-47 Light diffusion prism element group 5 Outer lens 6 First LED
60 Substrate 61 Light source 7 Second LED
70 Substrate 71 Light-emitting source 8 (81, 82, 83, 84) Upper and lower four first reflecting surfaces 9 (91, 92, 93, 94) Upper and lower four second reflecting surfaces
R CL Rear combination lamp TL Turn signal lamp BL Back lamp L1, L2, LH1, LH2, LR1, LR2 Light

Claims (2)

In a vehicular lamp having an LED as a light source and having a plurality of reflecting surfaces,
A first LED disposed on one side of the lamp;
A second LED disposed on the other side of the lamp;
A plurality of first reflecting surfaces for reflecting light from the first LED irradiated from one side of the lamp to the other side in a predetermined direction;
A plurality of second reflecting surfaces for reflecting light from the second LED irradiated to one side from the other side of the lamp in substantially the same direction as the light reflecting direction of the plurality of first reflecting surfaces;
A first linear Fresnel prism element group provided between the first LED and the plurality of first reflecting surfaces;
A second linear Fresnel prism element group provided between the second LED and the plurality of second reflecting surfaces;
An inner lens disposed on the light reflection direction side of the plurality of first reflection surfaces and on the light reflection direction side of the plurality of second reflection surfaces;
With
The plurality of first reflection surfaces and the plurality of second reflection surfaces are alternately provided over almost the whole in a common area,
The first linear Fresnel prism element group transmits light from the first LED almost as it is in a cross section including the first LED and the plurality of first reflecting surfaces, and includes a plurality of first reflecting surfaces. In a cross section perpendicular to the light reflection direction, the light from the first LED is refracted and transmitted as substantially parallel light,
The second linear Fresnel prism element group transmits light from the second LED almost as it is in a cross section including the second LED and the plurality of second reflecting surfaces, and includes a plurality of second reflecting surfaces. In a cross section perpendicular to the light reflection direction, the light from the second LED is refracted and transmitted as substantially parallel light ,
Of the inner lens, a portion substantially corresponding to a range in which reflected light from the plurality of first reflecting surfaces is incident is a recess recessed on the side opposite to the plurality of first reflecting surfaces, or A plurality of convex portions projecting toward the plurality of first reflecting surfaces are provided, respectively.
In the inner lens, a portion that substantially corresponds to a range in which reflected light from the plurality of second reflecting surfaces is incident, or a plurality of convex portions protruding toward the plurality of second reflecting surfaces, or the plurality A plurality of concave portions recessed on the opposite side to the second reflecting surface side are provided,
The plurality of concave portions and the plurality of convex portions of the inner lens correspond to the plurality of first reflection surfaces and the plurality of second reflection surfaces, respectively, in a common area. that provided alternately throughout,
A vehicular lamp characterized by the above. Each of the plurality of first reflecting surfaces is formed from a part of a rotating paraboloid that focuses on the light emitting source of the first LED and has a longer focal length as the distance from the first LED increases.
Each of the plurality of second reflecting surfaces is formed from a part of a rotating paraboloid with the light emitting source of the second LED as a focal point and a focal length that is longer as the distance from the second LED is longer.
The vehicular lamp according to claim 1.

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