JP2013161656A - Vehicle lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that in a conventional vehicle lamp it is difficult to secure both outside visibility and prevention of misidentification of colored light of an LED.SOLUTION: A vehicle lamp is provided with a semiconductor light source 8, an inner lens 10 as a light guide member, and an inner housing 12 integrated with an installation member and a light absorption member. The semiconductor light source 8 emits red light L1. The inner lens 10 makes the red light L1 from the semiconductor light source 8 incident to an incident surface 18 and guides to an emission surface 20 to be emitted from the emission surface 20 to the outside. The inner housing 12 absorbs red light L2 which is emitted from a surface other than the emission surface 20. As a result, it is possible with the lamp to compatibly secure visibility of the outside and prevention of misidentification of red light L1, L2 of the semiconductor light source 8.

Description

  The present invention relates to a vehicular lamp. In particular, the present invention relates to a vehicular lamp that uses a semiconductor-type light source that emits colored light.

  This type of vehicular lamp is conventionally known (for example, Patent Document 1). Hereinafter, a conventional vehicle lamp will be described. A conventional vehicle lamp includes an LED that emits colored light, a light guide that causes the colored light from the LED to be incident on an incident surface, led to the exit surface, and emitted to the outside from the exit surface, and the LED and the light guide. And a lamp housing in which is disposed. When the LED is turned on, colored light from the LED enters the light guide from the incident surface of the light guide, is guided to the output surface, and is emitted to the outside from the output surface.

JP 2006-313681 A

  In the conventional vehicular lamp, since the lamp housing is composed of a light-impermeable member, even if colored light from the LED is emitted from a surface other than the exit surface of the light guide, it is emitted to the outside by the lamp housing. Can be prevented. However, since the lamp housing is made of a light-impermeable member, it is impossible to secure an external field of view through the lamp housing and the light guide. That is, it is impossible for the driver to visually recognize the outside through the lamp housing and the light guide.

  Here, if the lamp housing is configured as a light transmissive member, an external field of view can be secured through the lamp housing and the light guide. However, since the lamp housing is composed of a light transmissive member, the colored light from the LED is emitted from a surface other than the light exit surface of the light guide, passes through the lamp housing, and exits to the outside. For this reason, the colored light of the LED that is emitted from a surface other than the emission surface of the light guide is mistaken as the colored light of the LED that is emitted from the emission surface of the light guide.

  As described above, in the conventional vehicular lamp, it is difficult to secure both an external field of view and to prevent misunderstanding of the colored light of the LED.

  The problem to be solved by the present invention is that it is difficult for a conventional vehicular lamp to ensure both an external field of view and prevention of erroneous recognition of colored light from an LED.

  The present invention (the invention according to claim 1) is a semiconductor-type light source that emits colored light, and a light guide that causes the colored light from the semiconductor-type light source to be incident on the incident surface, guided to the output surface, and output to the outside from the output surface. A member, a mounting member made of a light transmissive member, to which the light guide member is attached, and a light absorbing member that absorbs colored light emitted from a surface other than the light emitting surface of the light guide member. It is characterized by.

  This invention (the invention according to claim 2) is characterized in that the mounting member and the light absorbing member are integrally formed as a lamp housing.

  In this invention (the invention according to claim 3), the mounting member is constituted by a part of the vehicle body, and the light absorbing member is constituted by a filter provided separately from the mounting member. Features.

  This invention (the invention according to claim 4) is characterized in that the light absorbing member covers a surface other than the exit surface of the light guide member.

  According to this invention (the invention according to claim 5), the colored light from the semiconductor light source is red light or amber light, and the light absorbing member is a light absorbing member that absorbs red light or amber light. Features.

  The present invention (invention according to claim 6) is a semiconductor-type light source that emits colored light, and a light guide that causes the colored light from the semiconductor-type light source to be incident on the incident surface, guided to the output surface, and output to the outside from the output surface. A reflection member that is provided on a part of the surface other than the incident surface and the exit surface of the light guide member and reflects colored light incident on the light guide member from the incident surface to the exit surface side, A surface other than the incident surface and the exit surface of the light guide member, other than the surface on which the reflecting member is provided, is parallel or substantially parallel to the optical path of the colored light incident from the incident surface. To do.

  This invention (the invention according to claim 7) is characterized in that an antireflection member is provided on the exit surface.

  This invention (the invention according to claim 8) is characterized in that the colored light from the semiconductor-type light source is red light or amber light.

  In the vehicular lamp according to the present invention (the invention according to claim 1), since the mounting member to which the light guide member is mounted is composed of a light transmissive member, an external field of view is provided via the mounting member and the light guide member. Can be secured. That is, the driver can visually recognize the outside through the mounting member and the light guide member. On the other hand, the vehicular lamp of the present invention (the invention according to claim 1) absorbs colored light emitted from a surface other than the exit surface of the light guide member by the light absorbing member. It is possible to prevent the colored light emitted from the surface from being transmitted through the mounting member and irradiated to the outside. As described above, the vehicular lamp of the present invention (the invention according to claim 1) can achieve both securing an external field of view and preventing misidentification of colored light from a semiconductor light source.

  The vehicular lamp according to the present invention (the invention according to claim 2) uses a lamp housing in which an attachment member and a light absorbing member are integrally formed as a lamp housing, thereby ensuring external visibility and a semiconductor mold. Both misprediction of colored light from the light source can be prevented. In addition, the number of parts can be reduced, the number of assembling steps can be reduced, and the cost can be reduced.

  The vehicular lamp according to the present invention (the invention according to claim 3) has a light guide member attached to an attachment member formed of a part of a vehicle body, and a filter is provided on the attachment member. Both securing and prevention of misidentification of colored light of the semiconductor light source can be achieved.

  In the vehicular lamp of the present invention (the invention according to claim 4), the light absorbing member covers a surface other than the light exiting surface of the light guide member, so that the colored light emitted from the surface other than the light exiting surface of the light guide member is absorbed. It can be completely absorbed by the member. Thereby, the misidentification of the colored light of a semiconductor type light source can be prevented reliably.

  In the vehicular lamp of the present invention (the invention according to claim 5), since the light absorbing member absorbs the red light or amber light of the semiconductor light source, the turn using the tail lamp, the stop lamp or the amber light using the red light. Ideal for signal lamps.

  The vehicular lamp of the present invention (the invention according to claim 6) can transmit light at a location corresponding to a surface other than the surface of the light guide member where the reflective member is provided. It is possible to secure an external field of view through a portion corresponding to a surface other than the surface being provided. That is, it is possible for the driver to visually recognize the outside through a portion corresponding to a surface other than the surface where the reflecting member is provided in the light guide member. On the other hand, in the vehicular lamp of the present invention (the invention according to claim 6), the colored light that has entered the light guide member from the incident surface is reflected by the reflecting member toward the light exit surface, so that the light from the incident surface into the light guide member. It is possible to prevent the colored light incident on the light from exiting from a surface other than the exit surface. Moreover, the vehicular lamp of the present invention (the invention according to claim 6) is a surface other than the incident surface and the exit surface of the light guide member, and the surface other than the surface on which the reflecting member is provided is from the incident surface. Since it is parallel or almost parallel to the optical path of the incident colored light, it is possible to prevent the colored light from being emitted to the outside from the surface other than the surface provided with the reflecting member, and even if the colored light is emitted to the outside. The amount of emission is extremely small. As described above, the vehicular lamp of the present invention (the invention according to claim 6) can achieve both securing an external field of view and preventing misidentification of colored light from a semiconductor light source.

  The vehicular lamp according to the present invention (the invention according to claim 7) is incident on the light guide member from the incident surface and reflected by the reflecting member toward the output surface side by the antireflection member provided on the output surface. The colored light is emitted from the emission surface to the outside without being reflected on the emission surface (the boundary surface between the light guide member and the external space). As a result, it is possible to prevent the colored light of the semiconductor-type light source from being reflected by the exit surface of the light guide member, entering the light guide member again, and exiting from the surface other than the exit surface to the outside. It is possible to reliably prevent misidentification of colored light from the light source.

  Since the vehicular lamp of the present invention (the invention according to claim 8) uses a semiconductor-type light source that emits red light or amber light, a tail signal that uses red light, a stop lamp, or a turn signal lamp that uses amber light Ideal for.

FIG. 1 is a rear view of a rear portion of a vehicle in which a vehicular lamp according to a first embodiment of the present invention is mounted. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 3 is an enlarged cross-sectional view of the main part. FIG. 4 is an explanatory diagram showing the spectral transmittance of the inner lamp housing. FIG. 5 is a sectional view showing Embodiment 2 of the vehicular lamp according to the present invention. FIG. 6 is an enlarged cross-sectional view of a main part showing Embodiment 3 of the vehicular lamp according to the present invention. FIG. 7 is an enlarged cross-sectional view of the essential parts showing Embodiment 4 of the vehicular lamp according to the present invention.

  Hereinafter, four examples of an embodiment (example) of a vehicular lamp according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the first embodiment. In FIG. 2, FIG. 3, and FIG. 5 to FIG. 7, hatching of the inner lens 10 (light guide portion 16) and the light guide members 26 and 29 is omitted in order to clarify the optical path indicated by the solid line arrow. It is.

(Description of Configuration of Embodiment 1)
1 to 4 show Embodiment 1 of a vehicular lamp according to the present invention. Hereinafter, the configuration of the vehicular lamp 1 according to the first embodiment will be described. As shown in FIG. 1, a vehicular lamp 1 according to the first embodiment includes a tail lamp, a stop lamp, or a tail that constitutes a rear combination lamp 2 that is mounted on both left and right ends of a rear portion of a vehicle (automobile) C. Stop lamp.

  As shown in FIG. 2, the rear combination lamp 2 includes an outer housing 4 and an outer lens 5 that define a lamp chamber 3, and the vehicle lamp (tail lamp, stop lamp, or tail stop lamp) 1 , And other vehicle lamps (turn signal lamps, etc.) 6. The rear combination lamp 2 is attached to the fixed body panel 7 on both the left and right sides of the movable back door D of the vehicle C.

  In this example, the vehicular lamp 1 is a tail lamp, a stop lamp, or a tail stop lamp. The other vehicle lamp 6 is a turn signal lamp or a stop lamp when the vehicle lamp 1 is a tail lamp, and is a turn signal lamp or a tail lamp when the vehicle lamp 1 is a stop lamp. When the lamp 1 is a tail stop lamp, it is a turn signal lamp.

  Each of the vehicular lamp 1 and the other vehicular lamps 6 includes separate semiconductor-type light sources 8 and 9, separate inner lenses 10 and 11, and a common inner housing 12. The vehicular lamp 1 and the other vehicular lamps 6 are disposed in the lamp chamber 3. The inner housing 12 of the vehicle lamp 1 and the other vehicle lamp 6 is attached to the outer housing 4.

  When the semiconductor light source 8 is turned on via a lighting circuit (not shown), the inner lens 10 and the outer lens 5 are moved so that light (red light) L1 from the semiconductor light source 8 is indicated by a solid arrow. The light passes through and is irradiated to the outside. Further, when the semiconductor-type light source 9 is turned on via a lighting circuit (not shown), light (not shown) from the semiconductor-type light source 9 passes through the inner lens 11 and the outer lens 5 to the outside. Irradiated.

  As shown in FIG. 3, the vehicle lamp 1 includes the semiconductor light source 8, the inner lens 10 as a light guide member, the inner housing 12 as a mounting member, and a light absorbing member. It is.

  In this example, the semiconductor light source 8 emits the red light (having a wavelength of about 620 to 750 nm) L1. The semiconductor light source 8 includes a light emitting unit 13 and a substrate unit 14. The substrate portion 14 is attached to the inner housing (attachment member) 12 via an attachment bracket 15.

  The inner lens 10 as a light guide member includes a light guide portion 16 and an attachment portion 17. The attachment portion 17 is attached to the inner housing 12. The light guide 16 is provided with an incident surface 18, a reflective surface 19, and an exit surface 20.

  The incident surface 18 is a surface (an incident surface of a Fresnel lens) that allows the red light L1 emitted from the semiconductor light source 8 to enter the light guide unit 16 as parallel light or substantially parallel light.

  The reflection surface 19 enters the light guide portion 16 from the incident surface 18 and is guided in the light guide portion 16 so that the red light L1 is totally reflected or nearly totally reflected on the emission surface 20 side. It is a surface (step inclined surface) to be reflected by. The reflection surface 19 is inclined with respect to the optical path of the red light L1 incident from the incident surface 18 into the light guide unit 16. The reflecting surface 19 is provided in a plurality of steps (three steps in FIG. 2 and two steps in FIG. 3) on the surface facing the entrance surface 18 and the exit surface 20. A surface 21 between the reflecting surfaces 19 is parallel or substantially parallel to the optical path of the red light L1 that has entered the light guide 16 from the incident surface 18.

  The emission surface 20 is a surface that emits the red light L1 reflected by the reflection surface 19 and guided through the light guide unit 16 to the outside.

  The inner housing 12 as an attachment member is composed of a light transmissive member. The semiconductor housing light source 8 and the inner lens 10 are attached to the inner housing 12.

  The light absorbing member absorbs part of the red light L2 of the red light L1 emitted from the semiconductor-type light source 8, as indicated by a solid line in FIG. The light absorbing member is provided in the inner housing 12. That is, the mounting member and the light absorbing member are integrally configured as a lamp housing, that is, the inner housing 12. The inner housing 12 is composed of a colored (blue-green) transparent member that absorbs the red light L1. The light absorbing member of the inner housing 12 covers a surface other than the emission surface 20 of the inner lens 10 and absorbs the red light L2 emitted from a surface other than the emission surface 20 of the inner lens 10.

  Openings 22 and 23 are provided at locations corresponding to the light guide portion 16 of the inner lens 10 in the outer housing 4 and the fixed body panel 7. A blindfold 24 such as a film, paint, or vapor deposition is provided on the inner surface of the mounting portion 17 of the inner lens 10 corresponding to the mounting bracket 15.

(Description of action)
The vehicular lamp 1 according to the first embodiment is configured as described above, and the operation thereof will be described below.

  The semiconductor-type light source 8 is turned on via a lighting circuit. Then, red light L1 is emitted from the semiconductor-type light source 8. The red light L1 enters the light guide 16 from the incident surface 18 of the inner lens 10, is reflected by the reflecting surface 19 of the inner lens 10, and is irradiated from the exit surface 20 of the inner lens 10 to the outside. The light is transmitted to the outside through the lens 5.

  At this time, a part of the red light L2 of the red light L1 incident on the light guide portion 16 of the inner lens 10 is reflected by the reflecting surface 19 of the inner lens 10 and its reflection, as indicated by the broken-line arrows in FIG. In some cases, the light is emitted from the surface 21 between the surfaces 19, that is, from a surface other than the incident surface 18 and the emitting surface 20 of the inner lens 10. A part of the red light L <b> 2 emitted from the surface other than the emission surface 20 is absorbed by the light absorbing member of the inner housing 12.

  Further, the semiconductor light source 9 is turned on via a lighting circuit (not shown). Then, the light from the semiconductor-type light source 9 passes through the inner lens 11 and the outer lens 5 and is irradiated to the outside.

(Explanation of effect)
The vehicular lamp 1 according to the first embodiment is configured and operated as described above, and the effects thereof will be described below.

  In the vehicular lamp 1 according to the first embodiment, since the inner housing 12 of the mounting member to which the inner lens 10 of the light guide member is mounted is composed of a light transmissive member, the opening of the inner housing 12 and the outer housing 4 It is possible to secure an external field of view through the portion 22 and the opening 23 of the vehicle body panel 7 on the fixed side. That is, the driver has an opening 23 of the vehicle body panel 7 on the fixed side, hereinafter, an opening 22 of the outer housing 4 of the vehicular lamp 1, an inner housing 12 composed of a light transmissive member, and an inner lens of the light guide member 10. It is possible to visually recognize the outside of the left and right sides of the rear portion of the vehicle C through the outer lens 5. Here, since the vehicular lamp 1 according to the first embodiment is incorporated in the rear combination lamp 2, a portion that is particularly likely to become a blind spot, in this example, a lower portion behind the vehicle C (corresponding to the height of a small child). Can be ensured, and can contribute to traffic safety.

  On the other hand, the vehicular lamp 1 according to the first embodiment is configured such that the light absorbing member of the inner housing 12 causes the reflecting surface 19 of the inner lens 10 and the surface 21 between the reflecting surfaces 19, that is, the incident surface 18 of the inner lens 10 and Since the red light L2 emitted to the outside from a surface other than the emission surface 20 is absorbed, the red light L2 emitted from the reflection surface 19 of the inner lens 10 and the surface 21 between the reflection surfaces 19 is absorbed by the inner housing 12 and the outer housing 4. Irradiation to the outside through the opening 22 and the opening 23 of the fixed body panel 7 can be prevented. This prevents the red light L2 emitted outside from the surfaces other than the entrance surface 18 and the exit surface 20 of the inner lens 10 from being mistaken for the red light L1 emitted from the exit surface 20 of the inner lens 10 to the outside. Can do. As described above, the vehicular lamp 1 according to the first embodiment can achieve both securing an external field of view and preventing misidentification of the red lights L1 and L2 of the semiconductor light source 8.

  The vehicular lamp 1 according to the first embodiment uses an inner housing 12 of a lamp housing in which a mounting member and a light absorbing member are integrally formed, thereby securing an external field of view and red light of the semiconductor light source 8. In addition, it is possible to reduce both the number of parts, the number of assembling steps, and the cost.

  In the vehicular lamp 1 according to the first embodiment, the inner housing 12 of the light absorbing member has the reflecting surface 19 of the inner lens 10 of the light guide member and the surface 21 between the reflecting surfaces 19, that is, the incident surface 18 of the inner lens 10. Since the surfaces other than the exit surface 20 are covered, the red light L2 emitted from the surfaces other than the entrance surface 18 and the exit surface 20 of the inner lens 10 can be completely absorbed by the inner housing 12. Thereby, the misidentification of the red lights L1 and L2 of the semiconductor light source 8 can be reliably prevented.

  In the vehicular lamp 1 according to the first embodiment, the inner housing 12 of the light absorbing member absorbs part of the red light L2 of the red light L1 emitted from the semiconductor light source 8, so that the tail lamp that uses the red light L1; Ideal for stop lamps.

(Description of Embodiment 2)
FIG. 5 shows Embodiment 2 of the vehicular lamp according to the present invention. Hereinafter, the vehicular lamp in the second embodiment will be described. In the figure, the same reference numerals as those in FIGS. 1 to 4 denote the same components.

  The vehicular lamp 1 according to the first embodiment has a double lens structure of an outer lens 5 and an inner lens 10. On the other hand, the vehicular lamp 100 according to the second embodiment has a single lens structure of the outer lens 500. The outer lens 500 as a light guide member includes a light guide portion 16 and an attachment portion 17 in the same manner as the inner lens 10 as a light guide member. The attachment portion 17 is attached to the outer housing 4. The inner housing 12 is attached to the outer housing 4. As a result, the outer lens 500 is attached to the inner housing 12 via the outer housing 4. The light guide part 16 has the incident surface 18, the reflection surface 19, the emission surface 20, and the surface 21 between the reflection surfaces 19 (incident in the light guide unit 16. And a plane that is parallel or substantially parallel to the optical path of the red light L1).

  Since the vehicular lamp 100 according to the second embodiment is configured as described above, it is possible to achieve substantially the same operational effects as the vehicular lamp 1 according to the first embodiment. In particular, since the vehicular lamp 100 of the second embodiment has a single lens structure of the outer lens 500, the number of parts can be reduced, the number of assembling steps can be reduced, and the manufacturing cost can be reduced. be able to.

(Description of Embodiment 3)
FIG. 6 shows Embodiment 3 of the vehicular lamp according to the present invention. Hereinafter, the vehicular lamp in the third embodiment will be described. In the figure, the same reference numerals as those in FIGS. 1 to 5 denote the same components.

  In the vehicular lamps 1 and 100 according to the first and second embodiments, the mounting member is the inner housing 12 through the inner housing 12 and the outer housing 4. On the other hand, in the vehicular lamp 101 according to the third embodiment, the mounting member is a part of the vehicle body, in this example, the glass plate of the light transmissive member of the back door D (or the resin plate of the light transmissive member) 25. It is.

  In the vehicular lamps 1 and 100 of the first and second embodiments, the light guide member is integrally formed with the inner lens 10 and the outer lens 500. On the other hand, in the vehicular lamp 101 of the third embodiment, the light guide member 26 is configured separately from the inner lens 10 and the outer lens 500. The light guide member 26 has the incident surface 18, the reflective surface 19, the output surface 20, and the surface 21 between the reflective surfaces 19 (incident in the light guide member 26. And a plane that is parallel or substantially parallel to the optical path of the red light L1).

  Furthermore, the vehicular lamps 1 and 100 of the first and second embodiments are the inner housing 12 in which the light absorbing member is configured integrally with the mounting member. On the other hand, the vehicular lamp 101 according to the third embodiment includes a filter 27 in which a light absorbing member is separately provided on an attachment member, that is, the glass plate 25. The filter 27 covers a surface other than the entrance surface 18 and the exit surface 20 of the light guide member 26. The filter 27 is a surface of the red light L1 emitted from the semiconductor-type light source 8 other than the entrance surface 18 and the exit surface 20 of the light guide member 26, that is, between the reflection surface 19 and the reflection surface 19. The red light L2 emitted from the surface 21 is absorbed and light other than the red light L2 is transmitted.

  The glass plate 25 is provided with a storage recess 28. The semiconductor light source 8, the light guide member 26, and the filter 27 are attached to the wall surface of the storage recess 28 via the attachment bracket 15.

  The vehicular lamp 101 of the third embodiment is configured as described above, and the operation thereof will be described below.

  The semiconductor-type light source 8 is turned on via a lighting circuit. Then, red light L1 is emitted from the semiconductor-type light source 8. The red light L1 enters the light guide member 26 from the incident surface 18 of the light guide member 26, is reflected by the reflective surface 19 of the light guide member 26, and is irradiated to the outside from the output surface 20 of the light guide member 26. Is done.

  At this time, a part of the red light L2 out of the red light L1 incident on the light guide member 26 is reflected on the reflection surface 19 of the light guide member 26 and the reflection surface 19 as shown by broken line arrows in FIG. In some cases, the light is emitted from the intermediate surface 21, that is, the surface other than the incident surface 18 and the emitting surface 20 of the inner lens 10. Part of the red light L2 emitted from a surface other than the emission surface 20 is absorbed by the filter 27.

  Since the vehicular lamp 101 according to the third embodiment is configured and operated as described above, substantially the same functions and effects as those of the vehicular lamps 1 and 100 according to the first and second embodiments can be achieved. That is, the driver can visually recognize the outside of the left and right sides of the rear portion of the vehicle C through the glass plate 25, the filter 27, and the light guide member 26 as attachment members of the vehicular lamp 101.

  On the other hand, the vehicular lamp 101 according to the third embodiment is filtered by the filter 27 so that the reflection surface 19 of the light guide member 26 and the surface 21 between the reflection surfaces 19, that is, the incident surface 18 and the emission surface 20 of the light guide member 26. Since the red light L2 emitted to the outside from other surfaces is absorbed, the red light L2 emitted from the reflecting surface 19 of the light guide member 26 and the surface 21 between the reflecting surfaces 19 is irradiated to the outside through the glass plate 25. Can be prevented. Thereby, the red light L2 emitted to the outside from the surfaces other than the incident surface 18 and the emission surface 20 of the light guide member 26 is mistakenly recognized as the red light L1 emitted to the outside from the emission surface 20 of the light guide member 26. Can be prevented. As described above, the vehicular lamp 1 according to the first embodiment can achieve both securing an external field of view and preventing misidentification of the red lights L1 and L2 of the semiconductor light source 8.

  In particular, in the vehicular lamp 101 according to the third embodiment, since the mounting member is a part of the vehicle body, in this example, the glass plate 25 of the light transmitting member of the back door D, the number of parts can be reduced, and the number of assembling steps can be reduced. The manufacturing cost can be reduced. That is, the vehicular lamp 101 according to the third embodiment does not require the outer housing 4 or the outer lens 5 as compared with the vehicular lamps 1 and 100 according to the first and second embodiments.

(Description of Embodiment 4)
FIG. 7 shows Embodiment 4 of the vehicular lamp according to the present invention. Hereinafter, the vehicular lamp in the fourth embodiment will be described. In the figure, the same reference numerals as those in FIGS. 1 to 6 denote the same components.

  In the vehicular lamps 1 and 100 of the first and second embodiments, the light guide member is integrally formed with the inner lens 10 and the outer lens 500. On the other hand, in the vehicular lamp 102 according to the fourth embodiment, the light guide member 29 is configured separately from the inner lens 10 and the outer lens 500 independently of the vehicular lamp 101 according to the third embodiment. ing. The light guide member 29 has the incident surface 18, the reflective surface 19, the light exit surface 20, and the surface 21 between the reflective surfaces 19 (incident in the light guide member 29. And a plane that is parallel or substantially parallel to the optical path of the red light L1).

  On the reflective surface 19 of the light guide member 29, there is a reflective member 30 such as a reflective layer or a reflective film that reflects the red light L1 incident from the incident surface 18 into the light guide member 29 toward the light emitting surface 20 side. Provided (deposited). As a result, light may be transmitted through a portion of the light guide member 29 other than the reflection surface 19 where the reflection member 30 is provided, that is, a portion corresponding to the surface 21 between the reflection surfaces 19. it can.

  An antireflection member 31 such as an antireflection layer or an antireflection film is provided on the emission surface 20 of the light guide member 29 to prevent the red light L1 reflected by the reflection member 30 of the reflection surface 19 from being reflected. Provided (coated). Accordingly, the red light L1 is not reflected on the emission surface 20 when it is emitted from the emission surface 20 of the light guide member 29 to the outside.

  A mounting opening 32 is provided in the vehicle body panel 7 on the fixed side. The semiconductor light source 8 and the light guide member 29 are respectively attached to the wall surface of the attachment opening 32 via the attachment bracket 15.

  The vehicular lamp 102 according to the fourth embodiment is configured as described above, and the operation thereof will be described below.

  The semiconductor-type light source 8 is turned on via a lighting circuit. Then, red light L1 is emitted from the semiconductor-type light source 8. The red light L 1 enters the light guide member 29 from the incident surface 18 of the light guide member 29, is reflected by the reflective member 30 of the reflective surface 19 of the light guide member 29, and is emitted from the output surface 20 of the light guide member 29. From outside.

  Since the vehicular lamp 102 of the fourth embodiment is configured as described above, it is possible to achieve substantially the same operational effects as the vehicular lamps 1, 100, and 101 of the first, second, and third embodiments. That is, the driver corresponds to a surface other than the reflective surface 19 where the reflective member 30 is provided, that is, the surface 21 between the reflective surfaces 19 among the mounting opening 32 of the vehicle body panel 7 on the fixed side and the light guide member 29. The outside of the left and right sides of the rear portion of the vehicle C can be visually recognized through the antireflection member 31.

  On the other hand, in the vehicular lamp 102 according to the fourth embodiment, the red light L1 incident on the light guide member 29 from the incident surface 18 is reflected by the reflecting member 30 to the light emitting surface 20 side. It is possible to prevent the red light L <b> 1 incident in 29 from exiting from a surface other than the exit surface 20. In addition, the vehicular lamp 102 according to the fourth embodiment is a surface other than the incident surface 18 and the exit surface 20 of the light guide member 29 and is a surface other than the reflecting surface 19 on which the reflecting member 30 is provided, that is, the reflecting surface 19. Since the surface 21 between them is parallel or substantially parallel to the optical path of the red light L1 incident from the incident surface 18, the red light L1 is emitted to the outside from the surface 21 other than the reflective surface 19 where the reflecting member 30 is provided. Even if the red light L1 is emitted to the outside, the emission amount is extremely small. As described above, the vehicular lamp 102 according to the fourth embodiment can achieve both the securing of an external field of view and the prevention of misidentification of the red light L <b> 1 of the semiconductor light source 8.

  The vehicular lamp 102 according to the fourth embodiment is incident on the light guide member 29 from the incident surface 18 by the antireflection member 31 provided on the emission surface 20 and is reflected on the emission surface 20 side by the reflection member 30. The red light L1 is emitted from the emission surface 20 to the outside without being reflected on the emission surface 20 (the boundary surface between the light guide member 29 and the external space). As a result, the red light L <b> 1 of the semiconductor-type light source 8 is reflected by the emission surface 20 of the light guide member 29, enters the light guide member 29 again, and enters the surface other than the emission surface 20, that is, the surface 21 between the reflection surfaces 19. Since it can prevent emitting to the exterior, the misidentification of the red light L1 of the semiconductor-type light source 8 can be prevented reliably.

  In particular, the vehicular lamp 102 according to the fourth embodiment is formed by mounting the semiconductor light source 8 and the light guide member 29 on the wall surface of the mounting opening 32 of the vehicle body panel 7 on the fixed side via the mounting bracket 15. Therefore, the number of parts can be reduced, the number of assembly steps can be reduced, and the manufacturing cost can be reduced. That is, the vehicular lamp 102 according to the fourth embodiment does not require the outer housing 4 or the outer lens 5 as compared with the vehicular lamps 1 and 100 according to the first and second embodiments.

(Description of examples other than Embodiments 1, 2, 3, and 4)
In the first to fourth embodiments, the semiconductor light source 8 is disposed above the light guide unit 16 and the light guide members 26 and 29. However, in the present invention, the semiconductor-type light source 8 may be disposed on the lower side, the upper and lower sides, the left side, the right side, and the left and right sides of the light guide unit 16 and the light guide members 26 and 29.

  In the first to fourth embodiments, a semiconductor-type light source that emits red light L1 is used as the semiconductor-type light source 8, and is used for a tail lamp, a stop lamp, and a tail stop lamp. However, in the present invention, a semiconductor-type light source that emits amber light is used as the semiconductor-type light source, and may be used for a turn signal lamp. In this case, the light absorbing member absorbs amber light emitted from the semiconductor-type light source as indicated by a broken line in FIG.

  Further, in the first and second embodiments, the vehicle lamps 1 and 100 are incorporated in the rear combination lamp 2 mounted on the fixed vehicle body panel 7 on the left and right sides of the rear portion of the vehicle C. However, in the present invention, the vehicular lamps 1 and 100 may be incorporated in the vehicle body panel on the movable side of the back door D of the vehicle C, as indicated by a two-dot chain line in FIG.

  Furthermore, in the said Embodiment 3, it is the vehicle lamp 101 attached to the glass plate 25 of the back door D of the vehicle C. FIG. However, in the present invention, the vehicular lamp 101 may be attached to the lenses of the rear combination lamp 2 mounted on the left and right sides of the rear portion of the vehicle C, as indicated by a two-dot chain line in FIG.

  Furthermore, in the fourth embodiment, the vehicle lamp 102 is attached to the fixed vehicle body panel 7 on the left and right sides of the rear portion of the vehicle C. However, in the present invention, the vehicular lamp 102 may be attached to the vehicle body panel on the movable side of the back door D of the vehicle C, as indicated by a two-dot chain line in FIG.

  Furthermore, in the first and second embodiments, the entire inner housing 12 of the mounting member that is integral with the light absorbing member is made of a light transmissive member. However, in the present invention, the inner housing may be formed in two colors, and only the portion corresponding to the light guide portion 16 in the inner housing may be used as the light transmissive member.

  Furthermore, in the first and second embodiments, the outer housing 4 is provided with the opening 22. However, in the present invention, the outer housing may be molded in two colors, and only the portion corresponding to the light guide portion 16 in the outer housing may be used as the light transmissive member.

  Furthermore, in the first, second, and fourth embodiments, the opening 23 and the mounting opening 32 are provided in the vehicle body panel 7 on the fixed side to ensure visibility. However, in the present invention, other means may be provided on the vehicle body panel 7 on the fixed side to ensure visibility.

DESCRIPTION OF SYMBOLS 1,100,101,102 Vehicle lamp 2 Rear combination lamp 3 Lamp chamber 4 Outer housing 5, 500 Outer lens 6 Other vehicle lamp 7 Fixed body panel 8 Semiconductor type light source 9 Semiconductor type light source 10 Inner lens Optical member)
11 Inner lens 12 Inner housing (mounting member, light absorbing member)
DESCRIPTION OF SYMBOLS 13 Light emission part 14 Board | substrate part 15 Mounting bracket 16 Light guide part 17 Mounting part 18 Incident surface 19 Reflective surface 20 Output surface 21 Surface 22 between reflective surfaces 19 Opening part 24 Blindfold part 25 Glass plate 26 Light guide member 27 Filter 28 Storage recess 29 Light guide member 30 Reflective member 31 Antireflection member 32 Mounting opening C Vehicle D Back door L1, L2 Red light

Claims (8)

A semiconductor-type light source that emits colored light;
A light guide member that causes the colored light from the semiconductor-type light source to be incident on an incident surface and guided to the output surface to be output to the outside from the output surface;
A mounting member that is made of a light transmissive member and to which the light guide member is mounted;
A light absorbing member that absorbs the colored light emitted from a surface other than the emitting surface of the light guide member;
A vehicular lamp characterized by comprising: The mounting member and the light absorbing member are integrally configured as a lamp housing.
The vehicular lamp according to claim 1. The mounting member is composed of a part of a vehicle body,
The light absorbing member is composed of a filter provided separately from the mounting member.
The vehicular lamp according to claim 1. The light absorbing member covers a surface other than the light exit surface of the light guide member;
The vehicular lamp according to any one of claims 1 to 3. The colored light from the semiconductor-type light source is red light or amber light,
The light absorbing member is a light absorbing member that absorbs red light or amber light.
The vehicular lamp according to any one of claims 1 to 4, wherein the vehicular lamp is provided. A semiconductor-type light source that emits colored light;
A light guide member that causes the colored light from the semiconductor-type light source to be incident on an incident surface and guided to the output surface to be output to the outside from the output surface;
A reflecting member that is provided on a part of the surface other than the entrance surface and the exit surface of the light guide member, and reflects the colored light that has entered the light guide member from the entrance surface to the exit surface side; ,
With
Surfaces other than the entrance surface and the exit surface of the light guide member other than the surface on which the reflection member is provided are parallel or substantially parallel to the optical path of the colored light incident from the entrance surface. is there,
A vehicular lamp characterized by the above. An antireflection member is provided on the emission surface,
The vehicular lamp according to claim 6. The colored light from the semiconductor-type light source is red light or amber light.
The vehicular lamp according to claim 6 or 7, wherein the vehicular lamp is provided.

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