JP6816539B2 - Vehicle lighting - Google Patents

Description

The present invention relates to a vehicle lighting device having a plurality of lamp functions.

Examples of vehicle lighting devices having a plurality of lamp functions are those shown in Patent Document 1 and Patent Document 2. The vehicle lighting device of Patent Document 1 is provided with a light emitting body on the vehicle interior side of the vehicle door, and when the vehicle door is closed by the light emitting body control means, the irradiation direction of the light emitting body is seated. When the vehicle door is open, the illuminant is directed toward the rear of the vehicle toward the person's feet. This vehicle lighting device has a foot lamp function that illuminates the feet of the seated person and a warning lamp function that illuminates the rear of the vehicle to notify the open state of the vehicle door. And the warning lamp can be shared.

Further, in the lighting structure of Patent Document 2, a door pocket is provided in the door trim of the vehicle door, a courtesy lamp is provided in the lower board of the door trim, and the light from the courtesy lamp is guided to the inside of the door pocket in the door pocket. A light guide unit is provided. This lighting structure has a courtesy lamp function that illuminates the feet of occupants when getting on and off the vehicle or opening and closing the door, and a lamp function for door pocket lighting that guides the light from the courtesy lamp to the inside of the door pocket. The light source of each courtesy lamp can be shared between the courtesy lamp and the door pocket lighting lamp.

JP-A-2007-112251 Japanese Unexamined Patent Publication No. 2008-114694

However, in the vehicle lighting device of Patent Document 1, the light emitting body is moved by the light emitting body control means, and the irradiation direction of the light emitting body is switched between the feet of the seated person and the rear of the vehicle. Therefore, the vehicle lighting device can switch between the foot lamp function and the warning lamp function, but requires a large space for moving the light emitter, and the device tends to be large in size. Further, the lighting structure of Patent Document 2 is a light source of one courtesy lamp, and shares the courtesy lamp and the door pocket lighting lamp. Therefore, although this lighting structure can be miniaturized, the courtesy lamp function and the door pocket lighting lamp function cannot be switched.

An object to be solved by the present invention is to provide a vehicle lighting device capable of switching a plurality of lamp functions and being miniaturized.

The vehicle lighting device of the present invention is arranged so as to be movable and switchable between a light source, a light guide member, and a first position and a second position in a vehicle lighting device having a plurality of lamp functions, and is guided from the light source. The light guide member includes an optical path switching member that switches the optical path to the optical member, and a driving member that moves the optical path switching member from the first position to the second position and from the second position to the first position. , A first light guide unit, a second light guide unit, and a bypass light guide unit, and the first light guide unit is from a first incident surface and a first incident surface on which light from a light source is incident. It has a first emitting surface that emits a part of the incident first incident light to the outside, and a first reflecting surface that reflects at least a part of the remaining first incident light and guides it to the second light guide portion. , The bypass light guide portion has a bypass incident surface for incident light from the light source, guides the bypass incident light incident from the bypass incident surface to the second light guide portion, and the second light guide portion receives the second light guide. It has a second exit surface that emits the first incident light and the bypass incident light guided to the unit to the outside, and when the optical path switching member is located at the first position, the light from the light source advances to the first incident surface. It is characterized in that it is an optical path, and when it is located at the second position, it is an optical path in which the light from the light source travels to the bypass incident surface.

In the vehicle lighting device of the present invention, it is preferable that the optical path switching member is a movable reflector, and when the movable reflector is located at the second position, the light from the light source is reflected on the bypass incident surface.

In the vehicle lighting device of the present invention, when the optical path switching member is a movable light guide and the movable light guide is located at the second position, the light from the light source is incident and totally reflected on the bypass incident surface. , Is preferable.

The vehicle lighting device of the present invention is equipped on a door, and when the door is open, the optical path switching member is located at the first position, and a courtesy lamp function for emitting the first emission light from the first emission surface to the road surface. And it acts as a warning lamp function to emit the second emission light from the second emission surface to the rear of the vehicle, and when the door is closed, the optical path switching member is located at the second position and the second emission surface from the second emission surface. 2 It is preferable that it acts as an ambient lamp function that emits emitted light into the vehicle.

The vehicle lighting device of the present invention can provide a vehicle lighting device that can switch a plurality of lamp functions and can be miniaturized.

FIG. 1 is a schematic front view showing the first embodiment of the vehicle lighting device according to the present invention. FIG. 2 is a schematic front view showing a state when the optical path switching member is located at the first position and an optical path at that time. FIG. 3 is a schematic cross-sectional view showing a state when the optical path switching member is located at the first position and an optical path at that time. FIG. 4 is a schematic cross-sectional view showing a state when the optical path switching member is located at the second position and an optical path at that time. FIG. 5 is a schematic bottom view (V arrow view in FIG. 3) showing an optical path when the optical path switching member is located at the first position. FIG. 6 is a schematic plan view (VI arrow view in FIG. 4) showing an optical path when the optical path switching member is located at the second position. FIG. 7 is an explanatory diagram showing a usage state when the door is open. FIG. 8 is an explanatory diagram showing a usage state when the door is closed. FIG. 9 is a schematic cross-sectional view (a schematic cross-sectional view taken along line IX-IX in FIG. 7) showing a state in which the first emitted light from the first emitting surface is emitted to the road surface. FIG. 10 is a schematic cross-sectional view showing a state in which the second emitted light from the second emitting surface is emitted to the rear of the vehicle or into the vehicle interior (schematic sectional view taken along line XX in FIGS. 7, 8 and 9). Is. FIG. 11 is a schematic cross-sectional view (schematic cross-sectional view taken along the line XI-XI in FIGS. 7 and 9) showing a state in which the first emitted light from the first emitting surface is emitted to the road surface. FIG. 12 is a schematic cross-sectional view showing a state in which the second emitted light from the second emitting surface is emitted to the rear of the vehicle or into the vehicle interior (schematic cross-sectional view taken along the line XII-XII in FIGS. 7, 8 and 9). Is. FIG. 13 shows the second embodiment of the vehicle lighting device according to the present invention, and is a schematic cross-sectional view showing a state when the optical path switching member is located at the first position and an optical path at that time. FIG. 14 is a schematic cross-sectional view showing a state when the optical path switching member is located at the second position and an optical path at that time.

Hereinafter, two examples of the embodiment (example) of the vehicle lighting device according to the present invention will be described in detail with reference to the drawings. In this specification, front, rear, upper, lower, left, and right are front, rear, upper, lower, left, and right when the vehicle lighting device according to the present invention is installed in the vehicle. Since the drawings are schematic views, the main parts are shown, and the parts other than the main parts are not shown. Further, in the light guide member 3, in order to make it easier to understand the structure and optical path of the light guide member 3 (see the solid line arrow in the drawing), the main part is illustrated, and the parts other than the main part are omitted. Moreover, the illustration of the cross section and the hatching of the cross section are omitted.

(Explanation of the configuration of the first embodiment)
1 to 12 show the first embodiment of the vehicle lighting device according to the present invention. Hereinafter, the configuration of the vehicle lighting device according to the first embodiment will be described. In the figure, reference numeral 1 is a vehicle lighting device according to the first embodiment.

(Explanation of vehicle lighting device 1)
As shown in FIGS. 7 to 12, the vehicle lighting device 1 is installed in the armrest A on the passenger compartment R side of the door D of the vehicle C in this example. The vehicle lighting device 1 has a plurality of lamp functions, in this example, a courtesy lamp function, a warning lamp function, and an ambient lamp function. As shown in FIGS. 1 to 12, the vehicle lighting device 1 includes a lamp housing 10, a first lamp lens 11, a second lamp lens 12, a decorative panel 13, a light source 2, a light guide member 3, and the like. It includes an optical path switching member 4 and a driving member 5.

(Explanation of the lamp housing 10, the first lamp lens 11, the second lamp lens 12, and the decorative panel 13)
The lamp housing 10 and the decorative panel 13 are made of, for example, a light-impermeable member (resin member or the like). As shown in FIGS. 9 to 12, the lamp housing 10 has a hollow shape in which a portion corresponding to the bottom surface (lower surface) and the front surface of the armrest A is open and the portion corresponding to the other surface is closed. The decorative panel 13 has a plate shape that covers the opening of the lamp housing 10, and has a design on the surface. The edge of the opening of the lamp housing 10 and the edge of the decorative panel 13 are fixed. As a result, the opening of the lamp housing 10 is covered with the decorative panel 13.

The first lamp lens 11 and the second lamp lens 12 are composed of, for example, a light-transmitting member (resin member or the like). The first lamp lens 11 is provided on the decorative panel 13 corresponding to the bottom surface of the armrest A. Further, the second lamp lens 12 is provided on the decorative panel 13 corresponding to the front surface of the armrest A. The first lamp lens 11, the second lamp lens 12, and the decorative panel 13 are along the design surface of the bottom surface and the front surface of the armrest A. The first lamp lens 11 and the second lamp lens 12 are provided with optical elements such as a prism for diffusing light (fish-eye prism, cylindrical surface prism, etc.) and grain processing.

The lamp chamber 14 is partitioned by the lamp housing 10, the first lamp lens 11, the second lamp lens 12, and the decorative panel 13. A light source 2, a light guide member 3, an optical path switching member 4, and a drive member 5 are arranged in the light chamber 14, respectively. The light source 2, the light guide member 3, and the drive member 5 are attached to the lamp housing 10 via an attachment member such as a bracket. The optical path switching member 4 is attached to the lamp housing 10 via the drive member 5.

(Explanation of light source 2)
The light source 2 has a light emitting unit 20 and a substrate 21 as shown in FIGS. 1 to 4, 9 and 11. In this example, the light emitting unit 20 is a self-luminous semiconductor type light emitting element (semiconductor light emitting element) such as an LED, OEL or OLED (organic EL), and is composed of one or a plurality of elements. The light emitting unit 20 is mounted on the substrate 21, and the surface opposite to the surface mounted on the substrate 21 forms the light emitting surface. The surface of the substrate 21 opposite to the surface on which the light emitting portion 20 is mounted is attached to the inner surface (lower surface) of the upper plate of the lamp housing 10. As a result, the light emitting surface of the light emitting unit 20 (hereinafter, simply referred to as “light emitting surface”) is directed downward, and light (see the solid line arrows in FIGS. 2 to 4 and 6) is emitted downward. The light emitted from the light source 2 is hereinafter referred to as "light source light". The light source 2 has an optical axis Z. The optical axis Z passes through the center of the light emitting surface or its vicinity, and is vertically or substantially perpendicular to the light emitting surface. The light emitting unit 20 is turned on and off by operating the ignition switch (not shown) or the dedicated switch (not shown) of the vehicle C.

(Explanation of light guide member 3)
In this example, the light guide member 3 is made of a colorless transparent resin material such as acrylic resin, PC (polycarbonate), and PMMA (polymethyl methacrylate, methacrylic resin). The light guide member 3 is attached to the lamp housing 10. As shown in FIGS. 1 to 6 and 9 to 12, the light guide member 3 has a first light guide unit 31, a second light guide unit 32, and a bypass light guide unit 33.

(Explanation of the first light guide unit 31)
As shown in FIGS. 1 to 6 and 9 to 11, the first light guide unit 31 has a disk shape or a substantially disk shape. Therefore, the first light guide unit 31 has an upper surface (a surface facing the light source 2), a lower surface (a surface opposite to the surface facing the light source 2), and an upwardly inclined side surface and a downwardly inclined side surface (upper surface). It is a side surface between the lower surface and is hereinafter simply referred to as a "side surface"). The first light guide unit 31 has a first incident surface 310, 311 and a first exit surface 312, and a first reflecting surface 313, 314, 315.

A truncated cone-shaped convex portion 316 having the optical axis Z or substantially the optical axis Z as the center line is integrally provided on the upper surface of the first light guide portion 31. The convex portion 316 is provided with a concave portion. This recess is a truncated cone-shaped recess that is upside down with respect to the convex portion 316 and has the optical axis Z or substantially the optical axis Z as the center line. The surface of the recess forms the first incident surface 310, 311. That is, the circular bottom surface of the recess forms the central first incident surface 310. The inclined side surface of the recess forms a peripheral first incident surface 311. The first incident surfaces 310 and 311 make the light source light incident on the first light guide unit 31.

A dome-shaped convex portion 317 having the optical axis Z or substantially the optical axis Z as the center line is integrally provided on the lower surface of the first light guide portion 31. The surface of the convex portion 317 forms the first exit surface 312. That is, the first exit surface 312 forms a convex lens surface. The first exit surface 312 causes a part of the first incident light L1 incident from the first incident surfaces 310 and 311 to be emitted downward to the outside as the first emitted light L11.

The side surface and the lower surface of the first light guide portion 31 form the first reflection surface 313, 314, 315. That is, half or almost half of the side surface of the first light guide portion 31 forms an elliptical first reflecting surface 313 based on an ellipse. The first focal point F1 of the elliptical first reflecting surface 313 is located on the optical axis Z or substantially on the optical axis Z, at a position deviated from the center of the light emitting surface or its vicinity toward the first incident surface 310 and 311. This deviation is a deviation of the refraction component when the light source light is incident on the first incident surfaces 310 and 311. The second focal point F2 of the elliptical first reflecting surface 313 is located at the second light guide unit 32. The rest of the side surface of the first light guide unit 31 forms a circular first reflecting surface 314 based on a circle centered on or near the first focal point F1. The lower surface between the first exit surface 312 and the downwardly inclined side surface of the first light guide unit 31 forms an annular first reflection surface 315. The first reflecting surfaces 313, 314, and 315 reflect at least a part of the remaining first incident light L1 and guide it to the second light guide unit 32.

(Explanation of Bypass Light Guide Unit 33)
As shown in FIGS. 1 to 4, 6, 9, and 10, the bypass light guide portion 33 has a round bar shape having a circular cross section or a substantially circular cross section. The bypass light guide unit 33 has a bypass incident surface 330. That is, one end surface of the bypass light guide portion 33 forms a bypass incident surface 330. The bypass incident surface 330 is located between the light emitting surface and the first incident surfaces 310 and 311 and at a position deviated from the optical path (light path) of the light source light to the first incident surfaces 310 and 31. To do. The bypass incident surface 330 causes the bypass light guide unit 33 to receive the light source light whose optical path is switched from the optical path to the first incident surfaces 310 and 31 to the optical path to the bypass incident surface 330 by the optical path switching member 4. The bypass light guide unit 33 guides the bypass incident light L3 incident from the bypass incident surface 330 to the second light guide unit 32.

(Explanation of the second light guide unit 32)
As shown in FIGS. 1 to 6, 9 and 10, the second light guide portion 32 has a circular bar shape having a circular cross section or a substantially circular cross section having a diameter larger than that of the bypass light guide portion 33. The second light guide unit 32 has a second exit surface 320, and a large number of reflection surfaces 321 and stepped surfaces 322. One end of the second light guide unit 32 is integrally connected to an intermediate or substantially intermediate portion of the circular first reflecting surface 314 of the first light guide unit 31. The other end surface of the bypass light guide unit 33 is integrally connected to the upper surface of one end portion of the second light guide unit 32. As a result, the reflected light L2 from the first reflecting surface 313, 314, 315 of the first light guide unit 31 and the bypass incident light L3 from the bypass light guide 33 are guided to the second light guide unit 32.

A large number of reflecting surfaces 321 and stepped surfaces 322 are alternately formed on the back surface of the second light guide unit 32 (the surface opposite to the surface facing the second lamp lens 12). In FIG. 10, a part of the reflecting surface 321 and the stepped surface 322 are shown, and the rest are shown by a two-dot chain line. The reflecting surface 321 reflects the light guided by the second light guide unit 32 toward the second emitting surface 320. The stepped surface 322 connects the reflecting surface 321 and the reflecting surface 321. One reflecting surface 321 and one stepped surface 322 form one prism. The front surface of the second light guide unit 32 (the surface facing the second lamp lens 12) forms a line-shaped second exit surface 320. The second exit surface 320, the reflection surface 321 and the step surface 322 face each other. The second exit surface 320 laterally uses the reflected light L2 and the bypass incident light L3 of the first incident light L1 guided by the second light guide unit 32 and reflected by the reflecting surface 321 as the second emitted light L12. Is emitted to. The second exit surface 320 may be provided with an optical control element such as a prism (fisheye prism, cylindrical surface prism, etc.) or grain processing.

(Explanation of Optical Path Switching Member 4)
The optical path switching member 4 is arranged so as to be movable and switchable between the first position (positions shown in FIGS. 1 to 3 and 9) and the second position (positions shown in FIGS. 4 and 6) from the light source 2. The optical path to the light guide member 3 is switched. In this example, the optical path switching member 4 is a movable reflector having a reflecting surface 40. The reflection surface 40 is a reflection surface based on a parabola whose focal point F is at or near the center of the light emitting surface when the optical path switching member 4 is located at the second position. When the optical path switching member 4 is located at the first position, the light source light is incident on the first incident surface 310 and 311, and when located at the second position, the light source light is reflected by the reflecting surface 40 on the bypass incident surface 330. ..

(Explanation of drive member 5)
The drive member 5 is a solenoid in this example. The drive member 5 has a drive shaft (plunger) 50 and a return spring (not shown). An optical path switching member 4 is fixed to the drive shaft 50. The drive member 5 moves the optical path switching member 4 from the first position to the second position and from the second position to the first position. The drive member 5 is connected to a detector (not shown) that detects the opening / closing of the door D via a control device (not shown). When the door D is in the open state (when the door D is in the state shown in FIG. 7), the drive member 5 is energized and retracts the drive shaft 50 against the elastic force of the return spring. As a result, the optical path switching member 4 located at the second position can be moved to the first position. As a result, the optical path switching member 4 is located at the first position. When the door D is closed (in the state shown in FIG. 8), the drive member 5 is cut off from energization and advances the drive shaft 50 by the elastic return force of the return spring. As a result, the optical path switching member 4 located at the first position can be moved to the second position. As a result, the optical path switching member 4 is located at the second position.

(Explanation of operation of Embodiment 1)
The vehicle lighting device 1 according to the first embodiment has the above configuration, and its operation will be described below.

The case where the light emitting unit 20 of the light source 2 is lit and the door D of the vehicle C is open will be described first. At this time, the drive member 5 is energized, the drive shaft 50 is retracted against the elastic force of the return spring, and the optical path switching member 4 is located at the first position. Therefore, the light source light is directly incident on the first light guide unit 31 from the first incident surface 310 and 311. A part of the first incident light L1 incident on the first light guide unit 31, that is, the first incident light L1 incident on the first light guide unit 31 from the central first incident surface 310 is the first from the first emission surface 312. 1 The emitted light L11 is emitted downward to the outside. The first emitted light L11 is transmitted to the road surface through the first lamp lens 11 and acts as a courtesy lamp function for illuminating the feet of passengers getting on and off the vehicle C.

At least a part of the remaining first incident light L1 incident on the first light guide unit 31, that is, the first incident light L1 incident on the first light guide unit 31 from the surrounding first incident surface 311 is a first reflecting surface. It is reflected by 313, 314, and 315, and is guided to the second light guide unit 32 as reflected light L2. Here, the reflected light L2 reflected by the elliptical first reflecting surface 313 advances to the second focal point F2 of the second light guide unit 32. Further, the reflected light L2 reflected by the circular first reflecting surface 314 advances to the elliptical first reflecting surface 313, is reflected by the elliptical first reflecting surface 313, and proceeds to the second focal point F2 of the second light guide unit 32. Further, the reflected light L2 reflected by the annular first reflecting surface 315 proceeds to the elliptical first reflecting surface 313, is reflected by the elliptical first reflecting surface 313, and proceeds to the second focal point F2 of the second light guide unit 32. .. The reflected light L2 guided to the second light guide unit 32 is reflected by the reflecting surface 321 and is emitted laterally from the second emitting surface 320 as the second emitted light L12. The second emitted light L12 passes through the second lamp lens 12 and is emitted to the rear of the vehicle C, and acts as a warning lamp function to notify other people behind the vehicle C that the door D is open. To do.

Next, a state when the door D of the vehicle C is closed will be described. At this time, the energization of the drive member 5 is cut off, the drive shaft 50 is advanced by the elastic return force of the return spring, and the optical path switching member 4 is located at the second position. Therefore, the light source light is reflected by the reflection surface 40 of the optical path switching member 4 and is incident on the bypass light guide unit 33 from the bypass incident surface 330. The bypass incident light L3 incident on the bypass light guide unit 33 is guided to the second light guide unit 32. The bypass incident light L3 guided to the second light guide unit 32 is reflected by the reflection surface 321 and is emitted laterally from the second emission surface 320 as the second emission light L12. The second emitted light L12 passes through the second lamp lens 12 and is emitted into the vehicle interior R to act as an ambient lamp function.

(Explanation of Effect of Embodiment 1)
The vehicle lighting device 1 according to the first embodiment has the above configuration and operation, and its effects will be described below.

The vehicle lighting device 1 according to the first embodiment can switch a plurality of lamp functions and can be miniaturized. That is, the vehicle lighting device 1 according to the first embodiment switches the optical path switching member 4 between the first position and the second position by the driving member 5, thereby performing a courtesy lamp function, a warning lamp function, and an ambient lamp. You can switch to the function. Moreover, the vehicle lighting device 1 according to the first embodiment does not switch the light source 2, but merely switches the optical path switching member 4 arranged between the light source 2 and the light guide member 3. Therefore, the optical path The space for switching the switching member 4 can be made smaller than the space for switching the light source 2. As a result, the vehicle lighting device 1 according to the first embodiment can be downsized as compared with the conventional vehicle lighting device.

The vehicle lighting device 1 according to the first embodiment uses as the optical path switching member 4 a movable reflector that reflects the light from the light source 2 to the bypass incident surface 330 when it is located at the second position. The optical path from the light source 2 can be reliably switched between an optical path that advances to the first incident surface 310 and 311 and an optical path that advances to the bypass incident surface 330. As a result, the vehicle lighting device 1 according to the first embodiment can effectively use the light from the light source 2.

(Explanation of Embodiment 2)
13 and 14 show the second embodiment of the vehicle lighting device according to the present invention. Hereinafter, the vehicle lighting device according to the second embodiment will be described. In the figure, the same reference numerals as those in FIGS. 1 to 12 indicate the same ones.

The vehicle lighting device 1 according to the first embodiment is a movable reflector in which the optical path switching member 4 has a reflecting surface 40. On the other hand, the vehicle lighting device 1A according to the second embodiment is a movable light guide body in which the optical path switching member 4A has a total reflection surface. When the optical path switching member 4A is located at the second position, the light from the light source 2 is incident and totally reflected by the bypass incident surface 330 on the total reflection surface. The total reflection surface of the optical path switching member 4A is similar to or substantially the same as the reflection surface 40 of the optical path switching member 4 of the first embodiment, and when the optical path switching member 4A is located at the second position, the center or the vicinity of the light emitting surface is formed. It is a reflective surface based on a parabola as the focal point F.

Since the vehicle lighting device 1A of the second embodiment has the above configuration, it is possible to achieve the same or substantially the same effect as the vehicle lighting device 1 of the first embodiment.

(Explanation of Examples other than Embodiments 1 and 2)
In the above-described first and second embodiments, the plurality of lamp functions include a courtesy lamp function, a warning lamp function, and an ambient lamp function. However, in the present invention, the plurality of lamp functions may be a lamp function other than the courtesy lamp function, the warning lamp function, and the ambient lamp function, and the courtesy lamp function, the warning lamp function, the ambient lamp function, and the like. It may be a combination with the lamp function of.

In the first and second embodiments, a solenoid is used as the driving member 5. However, in the present invention, as the driving member 5, in addition to the solenoid, for example, a combination of a rack and a pinion, or an actuator such as a cylinder may be used.

The present invention is not limited to the above-described first and second embodiments.

1, 1A Vehicle lighting device 10 Lamp housing 11 1st lamp lens 12 2nd lamp lens 13 Decorative panel 14 Light room 2 Light source 20 Light emitting part 21 Substrate 3 Light guide member 31 1st light guide part 310 1st incident surface (center) 1st incident surface)
311 First incident surface (surrounding first incident surface)
312 First exit surface 313 First reflection surface (elliptical first reflection surface)
314 1st reflective surface (circular 1st reflective surface)
315 First reflective surface (annular first reflective surface)
316 Convex part 317 Convex part 32 Second light guide part 320 Second exit surface 321 Reflection surface 322 Step surface 33 Bypass light guide part 330 Bypass incident surface 4, 4A Light path switching member 40 Reflection surface 5 Drive member 50 Drive shaft A Armrest C Vehicle D Door F Focus F1 1st focus F2 2nd focus L1 1st incident light L2 Reflected light L3 Bypass incident light L11 1st emitted light L12 2nd emitted light R Interior Z Optical axis

Claims (4)

In a vehicle lighting device having multiple lamp functions
Light source and
Light guide member and
An optical path switching member that is arranged so as to be movable and switchable between the first position and the second position and that switches an optical path from the light source to the light guide member.
A driving member that moves the optical path switching member from the first position to the second position and from the second position to the first position.
With
The light guide member includes a first light guide unit, a second light guide unit, and a bypass light guide unit.
The first light guide unit includes a first incident surface on which light from the light source is incident, a first exit surface on which a part of the first incident light incident from the first incident surface is emitted to the outside, and the first light emitting surface. It has a first reflecting surface that reflects at least a part of the remaining incident light and guides it to the second light guide portion.
The bypass light guide portion has a bypass incident surface for incident light from the light source, and guides the bypass incident light incident from the bypass incident surface to the second light guide portion.
The second light guide portion has a second exit surface that emits the first incident light and the bypass incident light guided to the second light guide portion to the outside.
When the optical path switching member is located at the first position, the light path from the light source travels to the first incident surface, and when the optical path switching member is located at the second position, the light from the light source travels to the bypass incident surface. As an optical path to go to
A vehicle lighting device characterized by this. The optical path switching member is a movable reflector, and the movable reflector reflects light from the light source to the bypass incident surface when it is located at the second position.
The vehicle lighting device according to claim 1. The optical path switching member is a movable light guide body, and when the movable light guide body is located at the second position, the light from the light source is incident and totally reflected on the bypass incident surface.
The vehicle lighting device according to claim 1. Equipped on the door,
When the door is open, the optical path switching member is located at the first position, and a courtesy lamp function for emitting the first emission light from the first emission surface to the road surface and a second emission surface from the second emission surface. It acts as a warning lamp function that emits emitted light to the rear of the vehicle.
When the door is closed, the optical path switching member is located at the second position and acts as an ambient lamp function for emitting the second emission light from the second emission surface into the vehicle.
The vehicle lighting device according to any one of claims 1 to 3.

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