JP2017174726A - Window panel with vehicular lighting fixture and rear panel for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a window panel with vehicular lighting fixture capable of reducing thickness of a light guide part for guiding light from a light source while securing the thickness of the window panel, and capable of protecting the light guide part.SOLUTION: In a window panel 1 with vehicular lighting fixture, a window panel 2 and a vehicular lighting fixture 3 are integrated. The window panel 2 is constituted in such a manner that at least a first translucent panel 4 and a second translucent panel 5 are laminated. The vehicular lighting fixture 3 includes: a light source 6; and a light guide part 7 provided at one of translucent panels 4 out of a first translucent panel 4 and a second translucent panel 5, and for guiding light L from the light source 6.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a window panel with a vehicle lamp and a vehicle rear panel.

  In recent years, a window panel with a vehicle lamp in which a window panel and a vehicle lamp are integrated has been proposed (see, for example, Patent Document 1). Such a window panel with a vehicle lamp, for example, as a vehicle rear panel in which a rear window, a tail lamp / brake lamp, and a blinker lamp are integrally arranged, is formed integrally with the vehicle rear panel, or this It is configured to be integrally attached to the vehicle rear panel.

  In such a vehicle rear panel, for the purpose of reducing the weight of the vehicle, the entire panel is made of resin, and a part of the panel is used as a light guide plate (light guide unit) for guiding light from a light source. Yes. The light guide plate allows light emitted from the light source to enter the inside from one end surface (incident surface), reflects the light with a plurality of reflection cuts provided on one main surface (reflective surface), and then the other main surface The light is emitted from the (exit surface) to the outside.

  Thereby, the light emission surface (outgoing surface) provided on the front surface of the light guide plate can be made to emit light while guiding the light from the light source inside the light guide plate. In a vehicle rear panel, such a light guide plate (part) is arranged around the rear window (window panel), so that, for example, a vehicle lamp such as a tail lamp, a brake lamp, a blinker lamp, a back lamp, and a high-mount stop lamp. It is possible to function as.

JP 2014-8876 A

  By the way, in the conventional vehicle rear panel, it is necessary to increase the thickness of the panel in order to increase the strength of the resinized panel. On the other hand, when the thickness of the panel is increased, the thickness of the light guide plate is also increased. In this case, as the thickness of the light guide plate increases, it becomes difficult to efficiently guide light while repeatedly reflecting light from the light source inside the light guide unit. As a result, it is known that the emission efficiency of light from the emission surface decreases. Furthermore, as the thickness of the panel is increased, it becomes more difficult to form the panel integrally with the light guide plate.

  Moreover, in the conventional vehicle rear panel, the reflection surface of the light guide plate (part) can be directly touched from the inside of the vehicle. For this reason, when dust, dirt, or the like adheres to a plurality of reflection cuts provided on the reflection surface, the light emission efficiency from the emission surface decreases. In addition, even when the light guide plate (part) is damaged, unexpected light emission, reduction in emission efficiency, and the like are caused.

  Furthermore, in the conventional vehicle rear panel, the window panel and the light source are arranged separately. In this case, the entire rear window is increased in size.

  The present invention has been proposed in view of such a conventional situation, and the thickness of the light guide part for guiding the light from the light source can be reduced while ensuring the thickness of the window panel. And it aims at providing the rear panel for vehicles provided with the window panel with a vehicle lamp which made it possible to protect this light guide part, and such a window panel with a vehicle lamp.

  In order to achieve the above object, the invention according to claim 1 is a window panel with a vehicle lamp in which a window panel and a vehicle lamp are integrated, and the window panel includes at least a first light-transmitting light. The vehicle lamp has a light source and a light guide part that guides light from the light source, and the light guide part has a structure in which a conductive panel and a second translucent panel are laminated. Is a window panel with a vehicular lamp, which is provided on any one of the first translucent panel and the second translucent panel.

  In the invention according to claim 1, the window panel having a structure in which at least the first translucent panel and the second translucent panel are laminated, the strength of the window panel is secured while securing the thickness. It is possible to increase. Moreover, the thickness of this light guide part can be made thin by providing a light guide part in any one of a 1st translucent panel and a 2nd translucent panel. Thereby, it is possible to guide light efficiently while repeatedly reflecting light from the light source inside the light guide unit. Furthermore, it is possible to protect the light guide part provided in one translucent panel with the other translucent panel facing this light guide part.

  According to a second aspect of the present invention, in the window panel with a vehicle lamp according to the first aspect, the window panel includes at least the first light transmissive panel and the second light transmissive panel of the light guide section. It has an inner surface reflection layer which is located between the light transmissive panels and reflects light between the one light transmissive panel.

  In the invention according to claim 2, by providing an inner surface reflection layer at least between the first translucent panel and the second translucent panel of the light guide portion, Can efficiently reflect light.

  The invention according to claim 3 is the window panel with a vehicle lamp according to claim 2, wherein the inner surface reflection layer is formed of an adhesive having a lower refractive index than the one translucent panel. It is characterized by being.

  In the invention according to claim 3, by using an adhesive for the inner surface reflection layer, the first translucent panel and the second translucent panel can be laminated and integrated via the inner surface reflection layer. . In addition, by using an adhesive having a lower refractive index than that of one translucent panel, it is possible to guide light efficiently while repeatedly reflecting light from the light source inside the light guide part. It is.

  According to a fourth aspect of the present invention, in the window panel with a vehicle lamp according to the third aspect, the adhesive has light shielding properties.

  In invention of Claim 4, since the adhesive agent has light-shielding property, the inner surface reflection layer side of a light guide part can be light-shielded.

  According to a fifth aspect of the present invention, in the window panel with a vehicle lamp according to the second aspect of the present invention, the inner reflective layer is formed of air.

  In the invention according to claim 5, by using air for the inner reflection layer, it is possible to efficiently guide light while repeatedly reflecting light from the light source inside the light guide section.

  According to a sixth aspect of the present invention, in the window panel with a vehicle lamp according to any one of the first, second, third, or fifth aspect, the window panel includes at least light emitted from the light guide section. It has the light-shielding film which light-shields.

  In invention of Claim 6, it can prevent that the light radiate | emitted from the light guide part injects into a vehicle because a light shielding film light-shields the light radiate | emitted from the light guide part.

  The invention according to claim 7 is the window panel with a vehicle lamp according to any one of claims 1, 2, 3 or 5, wherein the window panel is emitted from at least the light guide section. It has the reflective film which reflects light, It is characterized by the above-mentioned.

In the seventh aspect of the invention, the light emitted from the light guide unit is reflected by the reflective film, so that the light emitted from the light guide unit is prevented from entering the vehicle interior and reflected toward the outside of the vehicle. be able to.
be able to.

  The invention according to claim 8 is the window panel with a vehicle lamp according to any one of claims 1 to 7, wherein the light source has a structure mounted on a substrate, The light source is fixed in a state of being sandwiched between the first translucent panel and the second translucent panel in a state where the light source is opposed to the light guide unit. .

  In the invention according to the eighth aspect, the window panel and the light source can be integrally arranged, and the window panel with a vehicle lamp can be reduced in size and thickness.

  The invention according to claim 9 is a vehicle rear panel attached to a rear portion of the vehicle, and includes the window panel with a vehicle lamp according to any one of claims 1 to 8. This is a vehicle rear panel.

  According to the ninth aspect of the present invention, it is possible to constitute a vehicle rear panel integrally formed with a window panel with a vehicle lamp or a vehicle rear panel to which a window panel with a vehicle lamp is integrally attached.

  As described above, according to the present invention, it is possible to reduce the thickness of the light guide unit that guides light from the light source while securing the thickness of the window panel, and to protect the light guide unit. It is possible to provide a window panel with a vehicular lamp that makes it possible, and a vehicle rear panel including such a window panel with a vehicular lamp.

It is a front view which shows the structure of the rear panel for vehicles provided with the window panel with a vehicle lamp which concerns on one Embodiment of this invention. It is sectional drawing to which the principal part of the window panel with a vehicle lamp shown in FIG. 1 was expanded. It is a perspective view which shows the structure of the some optical cut provided in the light guide part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In the drawings used in the following description, in order to make each component easy to see, the scales of the dimensions may be different depending on the component, and the dimensional ratio of each component is not always the same as the actual. Absent. In addition, the materials, dimensions, and the like exemplified in the following description are merely examples, and the present invention is not necessarily limited thereto, and can be appropriately modified and implemented without departing from the scope of the invention. .

  As one embodiment of the present invention, for example, a vehicle rear panel 100 including a vehicle lamp-equipped window panel 1 shown in FIGS. 1 and 2 will be described. FIG. 1 is a front view showing a configuration of a vehicle rear panel 100 including the window panel 1 with a vehicle lamp. FIG. 2 is an enlarged cross-sectional view of a main part of the window panel 1 with a vehicle lamp shown in FIG.

  As shown in FIG. 1, the window panel 1 with a vehicle lamp of the present embodiment is configured integrally with the vehicle rear panel 100 at the rear portion of the vehicle (not shown), for example, or the vehicle rear panel 100. It is the structure attached to the.

  Specifically, in the present embodiment, the window panel 1 with a vehicle lamp is integrally attached to a window frame WF that opens an upper portion of the vehicle rear panel 100.

  In the following description, “front”, “rear”, “left”, “right”, “upper”, and “lower” refer to when the vehicle rear panel 100 is viewed from the front (rear side of the vehicle) unless otherwise specified. Means the respective directions. Therefore, each direction when the vehicle is viewed from the front (front of the vehicle) is a direction in which front, rear, left and right are reversed.

  The vehicle rear panel 100 according to the present embodiment includes a rear window RW located at the rear of the vehicle, a pair of tail lamps TL and brake lamps BL that emit red light, and left and right sides of the rear window RW. A pair of blinker lamps WL that emits orange light and a high-mount stop lamp HSL that emits red light and is positioned above the rear window RW are integrally disposed on both sides.

  The window panel 1 with a vehicle lamp is integrated with a window panel 2 that forms a rear window RW and a plurality of vehicle lamps 3 that respectively form a tail lamp TL / brake lamp BL, a blinker lamp WL, and a high-mount stop lamp HSL. It has the structure which was made.

  The window panel 2 is attached so as to cover the opening of the window frame WF. On the other hand, the some vehicle lamp 3 is arrange | positioned around the window panel 2 along each position mentioned above.

  As shown in FIG. 2, the window panel 2 has a structure in which a first translucent panel 4 and a second translucent panel 5 are laminated. Among these, the 1st translucent panel 4 comprises the surface (front surface) 2a of the vehicle outer side of the window panel 2. As shown in FIG. On the other hand, the second translucent panel 5 constitutes a vehicle inner surface (rear surface) 2 b of the window panel 2.

  In the window panel 2, the outer peripheral edge of the second translucent panel 5 is attached to the window frame WF via a packing (seal material) P disposed along the inner peripheral edge of the window frame WF. The first translucent panel 4 is arranged in a non-contact state with the window frame WF. Thereby, vibration, external force, etc. transmitted from the window frame WF to the window panel 2 can be prevented from being directly transmitted to the light guide portion 7 of the first translucent panel 4 described later.

  As the first translucent panel 4 and the second translucent panel 5, a transparent resin panel made of, for example, polycarbonate (PC) or acrylic (PMMA) can be used. In the present embodiment, as the first translucent panel 4 and the second translucent panel 5, PCs each having a higher strength than PMMA are preferably used.

  The first translucent panel 4 and the second translucent panel 5 are bonded to each other with a film adhesive S between the opposing surfaces. As the adhesive S, it is preferable to use an adhesive having a lower refractive index than the first translucent panel 4 and the second translucent panel 5. Specifically, in this embodiment, for example, polyvinyl butyral (PVB) is used as the adhesive S. The refractive index of PC is about 1.585, and the refractive index of PVB is about 1.485. Further, the adhesive S is not limited to a film-like one, and a paste-like one may be used.

  The plurality of vehicular lamps 3 have basically the same structure except that the arrangement, shape, emission color, and the like differ depending on the function. Therefore, in the present embodiment, the structure of the vehicle lamp 3 will be specifically described by taking the tail lamp TL / brake lamp BL on the right side of the vehicle shown in FIG. 2 as an example.

  The vehicular lamp 3 includes a plurality of light sources 6 and a light guide unit 7. Among these, the light guide part 7 is either one of the 1st translucent panel 4 and the 2nd translucent panel 5 (1st translucent panel 4 in this embodiment). Is used as a light guide plate for guiding the light L from the light source 6.

  The plurality of light sources 6 are LED modules in which LEDs are mounted in a package. An LED that emits red light is used for the LED module. Moreover, the high output type thing for vehicle illumination is used for LED. Each light source 2 emits light L emitted from the respective LED module radially in a direction parallel to each other. The light source 6 can be a light emitting element such as a laser diode (LD) in addition to the LED described above.

  The plurality of light sources 6 are integrally attached to the rear surface 2 b side of the window panel 2. Specifically, in the present embodiment, the light source mounting portion 8 is provided at the end portions of the first translucent panel 4 and the second translucent panel 5. The light source mounting portion 8 includes a flange portion 9 in which a through hole 9a is formed on the first translucent panel 4 side, and a pedestal portion 10 in which a screw hole 10a is formed on the second translucent panel 5 side. Have. The plurality of light sources 6 are mounted on a circuit board (substrate) 11 in which a through hole 11a is formed. Then, in a state where the circuit board 11 is sandwiched between the pedestal portion 10 and the flange portion 9, the bolt 12 is screwed into the screw hole 11a through the through holes 9a and 11a.

  Thereby, the plurality of light sources 6 are integrally attached to the window panel 2. Further, the plurality of light sources 6 are arranged in a space K between the first translucent panel 4 and the second translucent panel 5. As described above, in the window panel 1 with a vehicle lamp of the present embodiment, it is possible to reduce the size and thickness of the entire rear window by arranging the plurality of light sources 6 and the window panel 2 integrally. .

  The plurality of light sources 6 are arranged in the vertical direction along the one end surface 4a of the first translucent panel 4 located in the vicinity of the light source mounting portion 8 (flange portion 8) (in FIG. 2). Only one light source 6 is shown.) In addition, each light source 6 is disposed with a space between the one end surface 4a of the first translucent panel 4 so as to emit light L toward the front surface 2a side of the window panel 2. . Thereby, since the light source 6 does not contact the 1st translucent panel 4 directly, the influence on the light guide part 7 by the heat which the light source 6 emits can be avoided.

  The portion of the window panel 2 where the light source mounting portion 8 is provided is disposed inside the window frame WF. Thereby, when the vehicle rear panel 100 is viewed from the front (rear side of the vehicle), each light source 6 is positioned on the back surface (rear surface) side of the window frame WF.

  The light guide unit 7 includes a light incident unit 13, an optical path conversion unit 14, and a light emitting unit 15. Further, the window panel 2 is located between the first translucent panel 4 and the second translucent panel 5 of the light guide unit 7, and light is transmitted between the window panel 2 and the first translucent panel 4. An internal reflection layer 16 that reflects L is provided. The inner surface reflection layer 16 is formed of an adhesive S having a refractive index lower than that of the first translucent panel 4 described above.

  The light incident portion 13 has a plurality of incident surfaces 13 a that are located on one end surface 4 a of the first light transmissive panel 4 and that are respectively opposed to the plurality of light sources 6. In the light incident part 13, the light L emitted from each light source 6 enters the light guide part 7 (first translucent panel 4) from each incident surface 13a.

  The optical path conversion unit 14 has an inclined reflection surface 14 a that is inclined toward the light emitting unit 15 side (the vehicle left side) at a position facing the incident surface 13 a of the first translucent panel 4. In the optical path conversion unit 14, the light L incident from each incident surface 13a is reflected (totally) toward the left side of the vehicle by entering the inclined reflecting surface 14a.

  The light L traveling toward the left side of the vehicle is (totally) reflected between the front surface 4b and the rear surface 4c of the first translucent panel 4. As a result, the light guide unit 7 guides the light L traveling toward the left side of the vehicle toward the light emitting unit 15 in the traveling direction of the light L while repeatedly reflecting the light L inside the first translucent panel 4. Can be lighted.

  The light emitting portion 15 includes a reflection surface 17 provided on one main surface (rear surface 4c in the present embodiment) side of the first translucent panel 4 and the other main surface (front surface 4b in the present embodiment) side. And an exit surface 18 provided on the surface.

  The reflection surface 17 has a plurality of reflection cuts 17 a on the rear surface 4 c of the first translucent panel 4. The plurality of reflection cuts 17a are provided over a region corresponding to the tail lamp TL / brake lamp BL on the right side of the vehicle described above.

  In addition, since the first translucent panel 4 and the second translucent panel 5 are bonded with the film-like adhesive S, a space (air) is formed inside the reflective cut 17a. Is provided. That is, in the inner surface reflection layer 16 formed of the adhesive S described above, a portion facing the reflection cut 17a is formed of air. In addition, about the inner side of the reflective cut 17a, it is good not only as a structure provided with such space (air) but as the structure provided with the adhesive agent S.

  The reflection surface 17 reflects the light L incident on each reflection cut 17a toward the emission surface 18 side with respect to the front surface 4b of the first translucent panel 4 at an angle (incident angle) that is less than the critical angle. . The reflection cut 17a only needs to reflect the light L at such an angle, and the shape, size, number, and the like are not particularly limited. For example, in the present embodiment, the reflection cut 17a is configured by a groove portion having a substantially triangular cross section.

  The emission surface 18 constitutes a light emission surface of the light guide unit 7. The light emitting surface is an area corresponding to the tail lamp TL / brake lamp BL on the right side of the vehicle. That is, the emission surface 18 is provided over a region facing the reflection surface 17 (a plurality of reflection cuts 17a) of the front surface 4b. On the emission surface 18, the light L reflected by the reflection surface 17 (the plurality of reflection cuts 17 a) is emitted to the outside of the light guide unit 7 (first translucent panel 4). Thereby, in the vehicle lamp 3, the light emission surface of the light guide part 7 can be made to emit red light.

  By the way, the area | regions other than the light guide part 7 of the window panel 2 form the area | region (see-through area | region) visible behind a vehicle. On the other hand, in the light guide part 7, it is necessary to block the light emitted from the light emitting part 15 toward the rear surface 2b side (inside the vehicle) of the window panel 2 to prevent the driver from being dazzled.

  Therefore, a light shielding film 19 is disposed between the adhesive S and the second translucent panel 5. The light shielding film 19 is attached to the second translucent panel 5 side. A conventionally used smoke film or the like can be used for the light shielding film 19. In the light guide portion 7, the light emitted from the light emitting portion 15 toward the rear surface 2 b of the window panel 2 can be shielded by the light shielding film 19.

  When the light shielding film 19 is attached to the second light transmissive panel 5, a concave portion having a shape corresponding to the light shielding film 19 may be provided in the second light transmissive panel 5. In this case, since the light shielding film 19 is affixed according to a recessed part, the sticking operation | work of this light shielding film 19 can be made easy. Moreover, the first light-transmissive panel 4 and the second light-transmissive panel 5 are maintained while keeping the thickness of the adhesive S constant by preventing a step from occurring in the portion where the light shielding film 19 is attached. It is possible to prevent a gap or the like from being generated between the two.

  The light shielding film 19 is not limited to the front side of the second translucent panel 5 described above, but can be attached to the rear side of the second translucent panel 5. Further, the light shielding film 19 is not limited to a part of the window panel 2 described above, and can be disposed on the entire surface of the window panel 2 for the purpose of ensuring privacy in the vehicle as in the case of the conventional smoke film. is there.

  As described above, in the window panel 1 with a vehicle lamp according to the present embodiment, the window panel 2 having a structure in which the first translucent panel 4 and the second translucent panel 5 are laminated is used for this window. The strength of the panel 2 can be increased while securing the thickness.

  Moreover, in the window panel 1 with a vehicle lamp of the present embodiment, the thickness of the light guide 7 can be reduced by providing the light guide 7 on the first translucent panel 4. Thereby, it is possible to guide light efficiently while repeatedly reflecting the light L from the plurality of light sources 6 inside the light guide unit 7.

  Furthermore, in the window panel 1 with a vehicle lamp of the present embodiment, the light guide portion 7 provided on the first light transmissive panel 4 is replaced by the second light transmissive panel 5 facing the light guide portion 7. It is possible to protect.

  Therefore, according to this embodiment, it is possible to provide the vehicle rear panel 100 including such a window panel 1 with a vehicle lamp.

  In addition, this invention is not necessarily limited to the thing of the said embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.

  Specifically, in the present invention, instead of the above-described reflection cut 17a, for example, an optical cut 20 as shown in FIG. FIG. 3 is a perspective view showing the configuration of the optical cut 20.

  The optical cut 20 is formed by a multi-faceted recess (dot), and reflects only the light L1 incident at a specific angle toward the exit surface 18 side. On the other hand, the optical cut 20 is configured to scatter the light L2 incident at an angle different from the specific angle.

  In the case of this configuration, for example, the light (red light) L1 from the tail lamp TL / brake lamp BL is disposed in the direction in which the optical cut 20 is directed, and the light (orange light) L2 from the blinker lamp WL is emitted. The optical cut 20 is disposed with the scattering side facing the incident direction. As a result, the light (orange light) L2 from the blinker lamp WL adjacent to the tail lamp TL / brake lamp BL enters the tail lamp TL / brake lamp BL side, and the light (red light) L1 from the tail lamp TL / brake lamp BL It is possible to prevent color mixing.

  Moreover, in this invention, you may give light-shielding property to the 2nd translucent panel 5 instead of arrange | positioning the light shielding film 19 mentioned above. It is also possible to give the adhesive S light-shielding properties. In order to provide light shielding properties, a conventionally known black dye or black pigment may be added to the second translucent panel 5 or the adhesive S. On the other hand, in the case of the 2nd translucent panel 5, you may paint with a black paint.

  Moreover, in this invention, it can also be set as the structure which has arrange | positioned the reflective film instead of the light shielding film 19 grade | etc., Mentioned above. In the case of this configuration, in the light guide portion 7, the light emitted from the light emitting portion 15 toward the rear surface 2 b side (inside the vehicle) of the window panel 2 is directed toward the front surface 2 a side (outside the vehicle) of the window panel 2 by the reflection film. Can be reflected.

  Moreover, in this invention, in addition to the structure of the window panel 2 in which the 1st translucent panel 4 and the 2nd translucent panel 5 which were mentioned above were laminated | stacked, it is the front surface 4b of the 1st translucent panel 4. It is good also as a structure by which the 3rd translucent panel is arrange | positioned at the side. That is, the window panel 2 can be configured such that the first light transmissive panel 4 is sandwiched between the second light transmissive panel 5 and the third light transmissive panel.

  As the third translucent panel, a resin panel made of the same material as the first translucent panel 4 and the second translucent panel 5 or a resin panel made of a different material may be used. Moreover, the 3rd translucent panel is bonded together with the 1st translucent panel 4 using the adhesive agent S whose refractive index is smaller than the 1st translucent panel 4 mentioned above.

  In the case of this configuration, the thickness of the light guide portion 7 provided in the first translucent panel 4 can be further reduced. Further, even when the thickness of the light guide 7 (first translucent panel 4) is reduced, it is possible to increase the strength while ensuring the thickness of the window panel 2. Furthermore, the light guide 7 provided on the first light transmissive panel 4 can be protected by the second light transmissive panel 5 and the third light transmissive panel that face the light guide 7. It is.

  In addition, about the 2nd translucent panel 5 and the 3rd translucent panel, it is also possible to comprise not only a single layer resin panel but a multilayer resin panel. In the case of this configuration, the balance between the strength and formability of the window panel 2 can be easily adjusted by changing the thickness and number of resin panels to be laminated. Moreover, it is also possible to give the 2nd translucent panel 5 and the 3rd translucent panel light-shielding property by coloring the resin panel in a layer. It is also possible to add functions such as ultraviolet (UV) cut and infrared (IR) cut.

  Moreover, in this invention, it is good also as a structure which provided the light guide part 7 in the 2nd translucent panel 5 instead of providing the light guide part 7 in the 1st translucent panel 4 mentioned above. In the case of this configuration, the thickness of the light guide 7 provided on the second translucent panel 5 can be reduced while securing the thickness of the window panel 2, and the light guide 7 It can be protected by the first translucent panel 4.

  Moreover, in this invention, it is good also as a structure formed with the air (refractive index = 1) whose refractive index is lower than the 1st translucent panel 4 instead of forming the inner surface reflection layer 16 mentioned above with the adhesive agent S. . That is, the inner surface reflection layer 16 can be configured by providing a space (air) between the first light transmissive panel 4 and the second light transmissive panel 5 of the light guide section 7. Also in this configuration, it is possible to guide the light L toward the light emitting unit 15 while repeatedly reflecting the light L inside the light guide unit 7 (first translucent panel 4).

  Moreover, in this invention, it is good also as a structure which provided the some light-diffusion cut on the output surface 18 side instead of providing the some reflective cut 17a in the reflective surface 17 side mentioned above. The plurality of light diffusion cuts emit the light L to the outside of the light guide unit 7 while diffusing the light L incident on the emission surface 18. Thereby, the light emission surface of the light guide part 7 can be light-emitted.

  In the above embodiment, the case where the present invention is applied to the vehicle rear panel 100 including the window panel 1 with a vehicle lamp described above is illustrated. However, the vehicle rear panel 100 may be a vehicle body such as a notch back or a hatch back. The present invention can be applied without being limited to the format. Therefore, the vehicle rear panel 100 may be configured to be openable and closable with respect to the vehicle body like a tailgate (hatch gate).

  In addition to the vehicle rear panel 100 described above, the window panel with a vehicle lamp to which the present invention is applied includes, for example, a vehicle front panel provided with a front window and a vehicle side panel provided with a side window. It is also possible to apply to (including doors).

  DESCRIPTION OF SYMBOLS 1 ... Window panel with vehicle lamp 2 ... Window panel 3 ... Vehicle lamp 4 ... 1st translucent panel (one translucent panel) 5 ... 2nd translucent panel 6 ... Light source 7 ... Light guide Part 8 ... Light source attachment part 9 ... Flange part 10 ... Base part 11 ... Circuit board (board) 12 ... Bolt 13 ... Light incident part 13a ... Incident surface 14 ... Optical path conversion part 14a ... Inclined reflecting surface 15 ... Light emitting part 16 ... Inner surface reflection layer 17 ... Reflection surface 17a ... Reflection cut 18 ... Outgoing surface (light emitting surface) 19 ... Light shielding film 20 ... Optical cut S ... Adhesive P ... Packing (sealing material) 100 ... Vehicle rear panel RW ... Rear window WF ... Window Frame TL ... Tail lamp BL ... Brake lamp WL ... Winker lamp HSL ... High-mount stop lamp

Claims (9)

A window panel with a vehicle lamp in which a window panel and a vehicle lamp are integrated,
The window panel has a structure in which at least a first translucent panel and a second translucent panel are laminated,
The vehicular lamp includes a light source and a light guide unit that guides light from the light source,
The window panel with a vehicular lamp, wherein the light guide section is provided on one of the first light transmissive panel and the second light transmissive panel.   The window panel is positioned at least between the first light transmissive panel and the second light transmissive panel of the light guide and reflects light between the one light transmissive panel. The window panel with a vehicular lamp according to claim 1, further comprising an inner surface reflecting layer.   The window panel with a vehicular lamp according to claim 2, wherein the inner reflection layer is formed of an adhesive having a refractive index lower than that of the one translucent panel.   The window panel with a vehicular lamp according to claim 3, wherein the adhesive has light shielding properties.   The window panel with a vehicular lamp according to claim 2, wherein the inner reflection layer is formed of air.   6. The window panel with a vehicle lamp according to claim 1, wherein the window panel includes a light shielding film that shields at least light emitted from the light guide unit. .   6. The window panel with a vehicle lamp according to claim 1, wherein the window panel includes a reflective film that reflects at least light emitted from the light guide section. . The light source has a structure mounted on a substrate,
The substrate is fixed in a state of being sandwiched between the first translucent panel and the second translucent panel with the light source facing the light guide unit. The window panel with a vehicle lamp according to any one of claims 1 to 7, A vehicle rear panel attached to the rear of the vehicle,
A vehicle rear panel comprising the window panel with a vehicle lamp according to any one of claims 1 to 8.

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