TW201741587A - Lighting device installed on a frame body of a vehicle and can be assembled as one device suitable for being applied as different lamp tools - Google Patents

Abstract

The issue of this invention is to provide a lighting device, which can be assembled as one device suitable for being applied as different lamp tools, and the lighting device is easy to be installed within a limited space, so that the freedom of designing is greater and the production cost can be significantly reduced. The solution of this invention is that a lighting device (10), which is installed on a frame body of a vehicle and has a plurality of light emitting diodes (21) emitting different colors, is provided with a lens array (30) capable of receiving one unit of the lights emitted by each of the light emitting diodes (21), the lens array (30) includes: a light projecting part (32) corresponding to a while light emitting diode (21A) of the light emitting diodes (21) and used for projecting the incident white light forward, and an identifying part (33) corresponding to a red light emitting diode (21B) and capable of diffusing the incident red light which can be identified from the exterior.

Description

Lighting device

The present invention relates to a vehicle body that is mounted on a vehicle body and has a plurality of light-emitting elements that emit light of different colors, and more particularly relates to an illumination device that combines a headlight and a taillight of a railway vehicle.

Conventionally, as such a lighting device for a vehicle, for example, it is known that it is equipped with a front light or a tail light of a railway vehicle. Here, the headlights are referred to as front sign lights in the related regulations on railways, and at night, the front of the vehicle is illuminated, the visibility of the driving is improved, and the point can be confirmed from the front of the night vehicle. The composition of the lights. In addition, the taillights are referred to as rear marker lights in the related regulations on railways, and the rear of the vehicle is displayed by light or reflection, and the presence of other vehicles traveling behind is informed. Such headlights and taillights are completely different in function.

The headlights or taillights differ in their function, and the main light distribution characteristics or light color are also different. That is, in the headlights, the light distribution characteristics for the long distance in front of the remote are required, and the light color system is generally set to white. In addition, in the taillights, the degree of identification from the outside can be The light distribution characteristics of the distance are sufficient, and the light color is set to red. Accordingly, each of the headlights and the taillights is configured via an individual lamp (for example, refer to Patent Documents 1, 2).

However, in a railway vehicle, after reaching the terminal station, in order to change the traveling direction, there is a case where the foremost vehicle and the last vehicle are switched. In order to cope with such a situation, there is also a front (rear) end of the foremost (final tail) vehicle, as shown in Fig. 14 (a), each of which mounts both headlights 1 and taillights 2, depending on the direction of travel. At the front and rear of the vehicle, one of the headlights 1 or the taillights 2 is selectively illuminated.

[Previous Technical Literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2013-141953

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2013-010467

However, as in the prior art disclosed in the above Patent Documents 1 and 2, the headlights and the taillights are completely different in configuration, and in the limited outer space of the vehicle, the arrangement space of the headlights and the taillights must be individually ensured. Therefore, there is a review of the space of the car body equipment, and there are problems in design restrictions. In addition, as a result of the preparation of individual lamps, the number of components or the number of installations has also increased, and there has been a problem of incurring high costs.

However, it is considered convenient to switch between the front vehicle and the last vehicle, such as the function of both the headlights and the taillights. However, as shown in FIG. 14(b), in the method of combining the headlights 1 and the taillights 2, the result is that the arrangement space of each of the lamps must be prepared, and the number of components is not reduced. Therefore, it is desirable to realize the functions of the headlights and the taillights as one device with a simple configuration.

The present invention has been made in view of the problems of the prior art as described above, and its object is to provide a lamp that includes different headlights or taillights as a simple device. In a limited space, it is also easy to install, and the degree of freedom in design is also increased, and the lighting device can be greatly reduced in cost.

As the content of the present invention for achieving the above object, the following inventions are available.

[1] A lighting device (10) for a vehicle, which is mounted on a vehicle body of a vehicle, and has an illumination device (10) formed by a plurality of light-emitting elements (21) that emit different colors, and is characterized in that: The plurality of light-emitting elements (21) are optical members (30) configured to receive one of the emitted light rays, and the optical member (30) includes: the plurality of light-emitting elements (21) corresponding to the emission a light-emitting element (21A) of a certain color of light, a light projecting portion (32) that emits light of the one color incident toward the front, and a light-emitting element that corresponds to light that emits other colors (21B), which can diffuse the identification portion (33) of the incident light of the other color from the outside.

[2] The illuminating device (10) for a vehicle according to [1], wherein the optical member (30) has a base body (31); the light projecting portion (32) and the marking portion ( 33) is arranged integrally with the base body (31) in accordance with a specific layout of each of the corresponding light-emitting elements (21).

[3] The illuminating device (10) for a vehicle according to the above [2], wherein each of the light-emitting elements (21) is disposed on one of the substrates, and the optical axis is oriented in the same direction; The member (30) is arranged such that the base body (31) is arranged in parallel in front of the substrate.

[4] The illuminating device (10) for a vehicle according to [3], wherein the light-emitting surface of each of the light projecting portion (32) and the marking portion (33) is formed at least on the base body (31). ) on the same plane on the surface side.

[5] The illuminating device (10) for a vehicle according to the above [1], wherein the light projecting unit (32) is formed by a lens, and the aforementioned mark The part (33) is made up of a light guide.

Next, the action of the solution according to the foregoing will be explained.

The illumination device (10) according to the above [1] has a plurality of light-emitting elements (21) that emit different colors, but the optical member (30) that receives the light emitted from each of the light-emitting elements (21) is used as a unit. Constructed, and this The optical member (30) is provided with a light projecting portion (32) and a marking portion (33) that realize different light distribution characteristics. Therefore, it is possible to use not only various lighting devices but also various lighting devices for one lighting device (10).

In particular, the direction in which the light projecting unit (32) and the indicator portion (33) emit light is not completely different. The light projecting unit (32) emits light incident from the light emitting element (21A) that emits light of a certain color toward the front, and the marking portion (33) is diffused from the outside to emit other colors. The light incident on the light-emitting element (21B) of the light has completely different functions including the light distribution characteristics, but can be realized in one unit.

Such an optical member (30) is, for example, as described in the above [2], and has one base body (31), and is provided on the base body (31) to match each of the corresponding light-emitting elements (21). The light projecting unit (32) and the indicator portion (33) may be arranged in a row in a specific layout. Here, the light projecting unit (32) and the indicator portion (33) may be formed as a single unit in combination with each other, for example, but when the unit body (31) is integrally arranged in advance, the member can be reduced. The number of pieces or the number of assembly workers.

Further, the portion or arrangement in which the plurality of light-emitting elements (21) are mounted is not particularly limited. For example, as described in the above [3], the optical axes are arranged to be the same on each of the substrates. The state of the direction can be handled as a light source substrate for one piece. Further, in the substrate itself, all of the light-emitting elements (21) are also in the same direction, and can be easily assembled and assembled, and can be easily fabricated. Further, the optical member (30) is such that its base body (31) is arranged as in each of the light-emitting elements (21). The front side of the substrate may be arranged in parallel.

Further, as described in the above [4], when the light exiting surface of each of the light projecting portion (32) and the marking portion (33) is formed at least on the same plane on the surface side of the base body (31), The configuration of the optical member (30) of the unit itself, as well as the arrangement of the relative to the light source substrate, can be further simplified.

Specifically, for example, as described in the above [5], the light projecting unit (32) adopts a lens, and the above-described light-receiving unit (32) When the light guide body is used as the indicator portion (33), it is possible to easily realize the function including the light distribution characteristics, and the cost can be further reduced.

According to the illuminating device according to the present invention, the lamps including the headlights or the taillights can be configured as a simple device, and the design can be easily installed in a limited space. The degree is also large, and the cost can be greatly reduced.

10‧‧‧Lighting device

11‧‧‧Light body

12‧‧‧ Storage Department

12a‧‧‧ outer periphery

13‧‧‧ Heat sink

14‧‧‧heat plate

20‧‧‧LED substrate

20A‧‧‧LED substrate

20B‧‧‧LED substrate

21‧‧‧LED

21A‧‧‧White LED

21B‧‧‧Red LED

30‧‧‧ lens array

30A‧‧ lens array

30B‧‧‧Lens Array

30C‧‧‧ lens array

31‧‧‧ base

32‧‧‧Projecting Department

33‧‧‧ Identification Department

33A‧‧‧Marking Department

33B‧‧‧Marking Department

321‧‧‧Outlet

322‧‧‧ Hole Department

323‧‧‧ recess

324‧‧‧ outer perimeter

figure 1

An exploded perspective view of a lighting device according to a first embodiment of the present invention is shown.

figure 2

A perspective view of a lighting device according to a first embodiment of the present invention is shown.

image 3

A perspective view showing the layout of the illumination device according to the first embodiment of the present invention from the back side is shown.

Figure 4

A perspective view showing the layout of the illumination device according to the first embodiment of the present invention from the front side is shown.

Figure 5

A perspective view showing a light-emitting state of the illumination device according to the first embodiment of the present invention is shown.

Figure 6

A perspective view showing the layout of the illumination device according to the second embodiment of the present invention from the front side is shown.

Figure 7

An exploded perspective view of a lamp body and an LED substrate of an illumination device according to a third embodiment of the present invention is shown.

Figure 8

A perspective view showing a light-emitting state of the illumination device according to the third embodiment of the present invention.

Figure 9

An exploded perspective view of a lamp body and an LED substrate of an illumination device according to a fourth embodiment of the present invention is shown.

Figure 10

A perspective view showing the layout of the illumination device according to the fourth embodiment of the present invention from the back side is shown.

Figure 11

A perspective view showing the layout of the illumination device according to the fourth embodiment of the present invention from the front side is shown.

Figure 12

A perspective view showing a light-emitting state of the illumination device according to the fourth embodiment of the present invention is shown.

Figure 13

A perspective view showing the layout of the illumination device according to the fifth embodiment of the present invention from the front side is shown.

Figure 14

An explanatory view showing the arrangement of the headlights and taillights of the conventional railway vehicles.

Hereinafter, various embodiments representing the present invention will be described based on the drawings.

1 to 5 show a first embodiment of the present invention.

The illuminating device 10 according to the present embodiment has a plurality of light-emitting elements that are attached to a vehicle body of a vehicle and that emit light in different colors. Hereinafter, a lamp that is applied to a railway vehicle front light and a tail light as a vehicle will be described as an example.

The illuminating device 10 is attached, for example, to the illustration. Among the railway vehicles, there is a vehicle body at the front (rear) of the front (last) vehicle of the cab. In the frontmost vehicle, the mounting portions for arranging the illuminating device 10 are provided on both sides of the front wall below the driver's cab. In the mounting portion, the illuminating device 10 is attached to the left and right in a state of being facing forward. The size of the mounting portion here is not required to be aligned with the lamps of two general headlights and taillights, and it is sufficient to provide a space for one lamp.

As shown in FIG. 1, the illuminating device 10 has a lamp body 11 having a heat dissipation plate, an LED substrate 20 of an LED 21 in which a plurality of light-emitting elements are mounted, and an optical member configured to receive a unit of light from each of the LEDs 21. Lens array 30. The illuminating device 10 is mainly assembled by means of these three members, and each member is previously unitized.

The lamp body 11 is integrally molded, for example, by a metal such as an aluminum alloy, and a cylindrical storage portion 12 for accommodating the lens array 30 while accommodating the LED substrate 20 is provided on the front side. The accommodating portion 12 is an opening in the front, and the outer peripheral edge 12a is formed in a flange shape. The bottom of the accommodating portion 12 constitutes a flat mounting surface. Although the illustration is shown, an insertion hole through a wiring for supplying power from a power source of the vehicle is provided at an appropriate position. Further, on the back side of the lamp body 11, a heat dissipation plate 14 provided with a plurality of fins 13 extending in parallel with each other is provided.

The LED board 20 is circularly fitted to the mounting surface of the bottom of the housing portion 12, and a wiring circuit is formed on the surface thereof, and a plurality of LEDs 21 are mounted on the wiring circuit. Here, the LED21 system is an example. In the case of a surface mount type LED chip, the detailed description is omitted for the sake of generality. However, the optical axis perpendicular to the wafer surface is centered, and light is emitted in a radiation range of a specific angle. The illuminating color of the LED 21 can be arbitrarily selected. However, in the present embodiment, the white LED 21A that emits white light is used as the light of one color, and the red LED 21B that emits red light is used as the light of the other color.

Here, the white LED 21A and the red LED 21B are the same configuration in which only the illuminating colors are different. Hereinafter, the case where the white LED 21A and the red LED 21B are collectively referred to as the LED 21 will be described. Each of the LEDs 21 is disposed on the surface of the LED substrate 20 in a state in which the optical axis is oriented in the same direction orthogonal to the surface. In other words, even if it is a luminescent color from the surface side of the LED substrate 20, it is set to be all straight rays that are directed toward the front.

The white LED 21A corresponds to a function as a "headlight", and the white light from the white LED 21A is directly emitted toward the front via the lens array 30 to be described later. On the other hand, the red LED 21B corresponds to the function as a "tail light", and similarly, the red light from the red LED 21B can be diffused from the outside through the lens array 30.

The specific layout of each of the LEDs 21 on the surface of the LED substrate 20 is a design option that can be appropriately selected. However, in the present embodiment, the functions of the white LED 21A and the red LED 21B are considered, and the number and arrangement of the LEDs 21A are determined. In other words, the white LEDs 21A are as far as possible to project bright light to a wide extent as far as possible, and in FIG. 1, eight are arranged at equal intervals along the outer circumference of the LED substrate 20 in the circumferential direction. Further, in the center of the LED substrate 20, two are arranged in the vertical direction, and a total of ten are mounted.

On the other hand, the red LED 21B is sufficient as long as it can be externally recognized, and is disposed on the surface of the LED substrate 20 in the margin portion of the arrangement of the respective white LEDs 21A. In detail, in FIG. 1, four white LEDs 21A on the center of the LED substrate 20 are arranged in a row, and three of them are arranged in each of the upper and lower sides, and a total of six are mounted. Thus, the number (light amount) of the red LEDs 21B is sufficient even if it is smaller than the white LEDs 21A.

As shown in FIGS. 3 and 4, the lens array 30 is provided with a disk-shaped one base 31 that is fitted to the mounting surface of the bottom of the housing portion 12. The base 31 includes a light projecting portion 32 corresponding to the white LED 21A among the LEDs 21 and an identification portion 33 corresponding to the red LED 21B. Such a lens array 30 is integrally molded, for example, with a transparent material such as acrylic or polycarbonate. The lens array 30 is attached to the front side of the LED substrate 20 attached to the bottom of the accommodating portion 12 in a state of being aligned in parallel so as to be in a state of covering the opening of the accommodating portion 12.

The light projecting unit 32 is formed by a lens body provided corresponding to each of the white LEDs 21A, and the white light from the white LED 21A is incident on the portion that is emitted toward the front. As shown in FIG. 4, the lens system of the light projecting unit 32 includes a bottomed hole portion 322 that is opened to the side of the exit surface 321 of the surface of the base 31 and is recessed at the center thereof, and the bottom surface of the hole portion 322 is formed as Specific lens shape.

The light projecting portion 32 is bulged in a bowl shape around the hole portion 322 to be rearward of the back surface of the base member 31, and a concave portion 323 from which white light from the opposite white LED 21A is incident is formed on the tip end portion. Each of the light projecting portions 32 is in a state in which the base 31 and the LED substrate 20 are opposed to each other, and the optical axis of each of the white LEDs 21A on the LED substrate 20 is at the center of the concave portion 323 (the axial center of the light projecting portion 32). The cross is arranged vertically on the base 31.

The bottom surface of the concave portion 323 also faces the bottom surface of the hole portion 322 to constitute a specific lens shape. Further, the bowl-shaped outer peripheral surface 324 which is bulged into the light projecting portion 32 serves as a critical reflection surface for causing the light incident from the concave portion 323 to be totally reflected toward the emission surface 321 through the curved shape or the inclination angle thereof. The totally reflected light is set in the desired direction or light distribution characteristics from the exit surface.

Next, the indicator portion 33 corresponds to the red LED 21B, and the red light from the red LED 21B is incident, and the light guide that is diffused from the outside is identifiable. Specifically, the indicator portion 33 is on the front and back surfaces of the base 31, and the remaining white portion other than the light projecting portion 32 is completely equivalent, and the remaining white portion is coated or the like, or coated with a light diffusing material. The incident red light is diffused and set. In other words, in the back surface of the base 31, for example, the entire white portion of the outer peripheral surface 324 of the bulging portion of each of the light projecting portions 32 is processed to diffuse light such as texture or printing.

The processing system for diffusing the light by the marking portion 33 is not limited to the back side of the base 31, but is implemented on the surface side in addition to the respective light projecting portions 32. The remaining white portion of the face 321 can also be used. The exit surface of the indicator portion 33 is basically on the surface side of the base 31 except for the margin portion of the exit surface 321 of each of the light projecting portions 32. However, the red light from the red LED 21B is also guided to the light projecting portion 32 side that is integrally connected to the indicator portion 33, and the light projecting portion 32 (one portion) can be used together with the indicator portion 33.

The light projecting unit 32 and the indicator unit 33 are integrally arranged on the base body 31 in a specific layout of the LEDs 21 corresponding to the respective fittings. In other words, each of the light projecting portions 32 is arranged such that its respective axes are arranged to overlap the optical axis of the white LED 21A. On the other hand, the marking portion 33 is provided on the base 31 so as to be diffused from the entire white portion of each of the light projecting portions 32 so as to receive light from any of the red LEDs 21B. In the present embodiment, the light exiting portions of the light projecting portions 32 and the indicator portions 33 are formed on the surface side of the base member 31, and are formed continuously on the same plane.

Next, the operation of the illumination device 10 of the present embodiment will be described.

In the illumination device 10, a white LED 21A that emits light as a headlight, and a red LED 21B that emits light as a taillight are mounted on one LED substrate 20, and the lens array 30 that receives the light emitted by the LEDs 21 also serves as a Units are constructed. In particular, the lens array 30 is such that the light projecting portion 32 and the indicator portion 33 that realize different light distribution characteristics are integrated, and the number of components constituting the lens array 30 is small, and the entire device can also be used as a miniaturizer.

Thus, for a limited space in the exterior of the vehicle It is also easy to set up the front wall below the bridge. In addition, the lighting device 10 does not need to obtain an extra arrangement space, and the degree of freedom in design is also increased, and the change can be increased. Further, in order to provide the structure of the mounting portion of the vehicle exterior of the lighting device 10 or the wiring of the wiring, the wiring can be simplified, and the manufacturing cost of the vehicle can be reduced. Although the illuminating device 10 is not shown in the figure, the front wall of the foremost vehicle is attached as a pair of right and left, and the rear wall of the last vehicle is similarly attached as a pair of right and left.

The illuminating device 10 is powered by a power source mounted on the vehicle, and each of the LEDs 21 on the LED board 20 is turned on in response to an operation of a switch or the like provided in a driver's seat in the cab. Further, the control means is configured to control the illuminance or the like in addition to the lighting of each of the LEDs 21 or the like. However, the heat radiated at the time of lighting of the LED 21 is directly transmitted to the bottom surface of the housing portion 12 that the LED substrate 20 is immediately in contact with, and the heat sink 13 of the heat dissipation plate 14 located on the back side of the lamp body 11 is efficiently performed. Heat it to the outside.

In the lighting device 10 of the foremost vehicle, among the LEDs 21 on the LED substrate 20, the white LEDs 21A corresponding to the headlights are turned on. The white light from the white LED 21A is incident on the concave portion 323 which is located at the center of the bowl-shaped outer peripheral surface 324 of the light projecting portion 32 of the lens body from the lens array 30. The white light incident on the concave portion 323 is collected by the curved shape of the inner circumferential surface of the concave portion 323, and is emitted from the emission surface 321 as a specific direction or light distribution characteristic defined by the headlight.

Specifically, it is incident into the white light of the concave portion 323, and is oriented A part of the axial direction is parallelized by the lens shape of the bottom surface of the concave portion 323 and the bottom surface of the corresponding hole portion 322, and is straight out from the bottom surface of the hole portion 322 to the front. Further, the white light of the other part of the self-axial diffusion is totally reflected by the bowl-shaped outer peripheral surface 324, and is emitted from the exit surface 321 slightly downward toward the front.

Here, each of the light projecting portions 32 may be uniform for the light distribution characteristics of the emitted light to all of the same directions, but a part of the light distribution characteristics may be set to different light distribution characteristics. For example, among the light projecting units 32, only four of the white LEDs 21A arranged in the vertical direction in the center of the LED substrate 20 are used as low beam, and are oriented obliquely below the optical axis of the white LED 21A. On the other hand, the other light projecting portion 32 arranged on both sides of the LED substrate 20 is used as a high beam, and may be a lens shape that emits light toward the front side of the white LED 21A.

On the other hand, in the illumination device 10 of the last tail vehicle, among the LEDs 21 on the LED substrate 20, the red LED 21B corresponding to the tail light is turned on. The red light from the red LED 21B is incident on the lens array 30 as the indicator portion 33 of the light guide, that is, on the back surface of the base 31, and the remaining portion of the light projecting portion 32. The red light incident on the marking portion 33 is reflected in various directions by processing for diffusing light such as texture or printing, and is emitted as light that can be diffused from the outside on the surface of the base 31, and the marking portion 33 is emitted. The whole is illuminated in red.

Thus, for a lens array 30, the system also has The light-emitting portion 32 of the lens for the backlight is usually used, and the remaining portion of the active substrate 31 is the indicator portion 33 of the light guide for the tail light. The illumination device 10 functions as both the headlight and the taillight. Here, the directions in which the light projecting unit 32 and the indicator portion 33 each emit light are not completely different. In other words, the light projecting unit 32 emits the light incident from the white LED 21A toward the front, and the indicator portion 33 diffuses the light incident on the red LED 21B from the outside.

In particular, in a railway vehicle, there is a case where the foremost vehicle and the last vehicle are switched in response to the arrival of the terminal or the destination. At this time, in the case where the foremost vehicle is the last-end vehicle, the red LED 21B is turned on instead of the white LED 21A, and next time, the illumination device 10 functions as a tail light. On the other hand, in the case where the last-end vehicle is the front-most vehicle, the white LED 21A is turned on instead of the red LED 21B, and the illuminating device 10 functions as a headlight next time.

As described above, the illuminating device 10 is not a simple combination of different types of illuminating devices, and one illuminating device 10 realizes various luminaires in one unit. However, as described above, each of the LEDs 21 is not only simply switched on (turned on) or turned off (off), but as for example, the white LED 21A of the headlight is improved in illuminance, etc., and is also adjusted in accordance with the adjustment of the illuminance. can.

Further, as a feature of the configuration of the illumination device 10, in the lens array 30, the light-emitting surfaces of the light-emitting portions 32 and the indicator portions 33 are formed on the same plane on the surface side of the substrate 31, The configuration of the lens array 30 of one unit itself can also be simplified as far as the arrangement with respect to the LED substrate 20 is made. Further, a lens is used for the light projecting unit 32, and a light guide body is used for the indicator portion 33, whereby the function of including each light distribution characteristic can be easily realized, and the cost can be reduced. However, the lens array 30 also functions as a cover member for covering the accommodating portion 12, but the lens array 30 may be covered with a separate cover.

Further, each of the LEDs 21 is not particularly limited to the portion or arrangement to be mounted. However, in the present embodiment, since the optical axes are arranged in the same direction on each of the LED boards 20, the optical axis can be used as the same direction. One component and the processor. Further, in the LED board 20 itself, all of the LEDs 21 are in the same direction, and it is possible to easily mount the LEDs 21 in a simple manner.

Fig. 6 shows a second embodiment of the present invention.

In the present embodiment, the configuration of the lens array 30A is different from that of the lens array 30 of the first embodiment, and the light projecting unit 32 is common, but the specific configuration of the indicator portion 33A is different. In other words, the indicator portion 33A is not on the back surface of the base 31 but on the surface side, and in addition to the remaining portion of the exit surface 321 of the light projecting portion 32, the ridge-shaped ridges of the circular arc-shaped cross section are closely arranged. Arrange and attach the bumps.

According to the unevenness of the marking portion 33A as described above, the red light emitted from the red LED 21B can be more efficiently diffused to a wide range. The same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.

Fig. 7 and Fig. 8 show a third embodiment of the present invention.

In the present embodiment, the configuration of the LED board 20A is different from that of the LED board 20 of the first embodiment. In the LED board 20A, the white LEDs 21A are arranged in a total of three on the outer circumference of the substrate, and three of them are arranged on the both sides. In addition, the red LEDs 21B are disposed in the middle of the respective white LED substrates 21A on both sides, and are arranged in the center of the LED substrate 20A, and are arranged in a total of four in a row.

In the layout of the LEDs 21 as described above, the red LEDs 21B are omitted from the LED substrate 20 of the first embodiment, and the white LEDs 21A arranged in the center column are replaced with the red LEDs 21B. In the white LED 21A which is reduced in number compared with the first embodiment, each of the white light beams passes through the corresponding light projecting portion 32, as a result of considering the necessary brightness, the irradiation distance, and the range as the headlights. When it is cast, it can be realized as a function of the headlights.

Further, the red LEDs 21B are arranged in a vertical row, but the red light from each of the red LEDs 21B passes through the corresponding light projecting portion 32, and is diffused from the outside. In the light projecting portion 32 corresponding to each of the red LEDs 21B, it is necessary to diffuse light and diffuse it, and the light diffusing agent is sealed inside the lens body of the light projecting portion 32, and on the exit surface 321 In the same manner as the margin portion described above, the light is diffused by texture, printing, or unevenness, and the entire light is red.

9 to 12 show a fourth embodiment of the present invention.

In the present embodiment, the configuration of the lens array 30B and the LED substrate 20 or the lens array of the first embodiment are not limited to the LED substrate 20B. The 30 series is different. As shown in FIG. 9, the LED board 20B has five white LEDs 21A, one of which is arranged in the center of the substrate, and four of them are arranged at equal intervals along the outer periphery of the substrate. In addition, the red LEDs 21B are arranged in the center of the substrate from the white LEDs 21A arranged on the outer periphery of the substrate, and are arranged at four equal intervals in the circumferential direction.

The base 31 of the lens array 30B is provided with a light projecting portion 32 formed of a lens body similarly to the above-described light projecting portion 32 at a position corresponding to the four white LEDs 21A. Further, on the back surface of the base 31, the rib portion of the light guide body is integrally formed as the indicator portion 33A on the remaining portion between the light projecting portions 32. As shown in FIG. 10, the ribs of the indicator portion 33A are formed in a lattice shape along the longitudinal and lateral directions, and are formed as a frame that is partially connected in an arc shape along the outer circumference of the substrate. The intersection of the ribs corresponds to the position of the four red LEDs 21B, and from this intersection, the red light from the red LED 21B is incident. However, the ribs of the indicator portion 33A are housed inside the housing portion 12 of the lamp body 11.

As shown in FIG. 12, the red light incident on the indicator portion 33A is partially brightly illuminated from the surface side of the base 31 to which the edge of the rib is connected, and can also be red as the entire surface of the base 31. By. Here, in the same manner as the above-described indicator portion 33, the margin portion of the exit surface 321 of each of the light projecting portions 32 may be subjected to processing for diffusing light passing through the texture or printing. According to the fourth embodiment as described above, the white light can be emitted from the entire surface of the lens array 30B, and the red light can be uniformly illuminated. However, for the first embodiment The same reference numerals are attached to the same parts, and the repeated description is omitted.

Fig. 13 is a view showing a fifth embodiment of the present invention.

In the present embodiment, the configuration of the lens array 30C is different from that of the lens array 30 of the first embodiment, and the light projecting unit 32 and the indicator portion 33 (see FIG. 3) are common, but are additionally provided along the substrate 31. The outer peripheral portion is protruded into a flange-shaped marking portion 33B. The same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.

The mark portion 33B having such a flange shape protrudes from the outside of the housing portion 12 of the lamp body 11, and the red light from the red LED 21B is guided by the indicator portion 33, and is entirely illuminated in red. As a result, the illuminator who can easily recognize the indicator portion 33B from the vehicle side is thereby obtained. However, in the lens array 30C of the fifth embodiment, the indicator portion 33B is added to the lens array 30 of the first embodiment, but the lens arrays 30, 30A, and 30B of the other second, third, and fourth embodiments are also It is also possible to add the indicator portion 33B.

The embodiments of the present invention have been described above with reference to the drawings. However, the specific configuration is not limited to the above-described embodiments, and modifications and additions may be made without departing from the scope of the invention. For example, in the above-described embodiment, the railway vehicle has been described as an example of the vehicle to which the present invention is applied. However, the present invention is not limited to the railway vehicle, and includes vehicles traveling on the road and the like for other various types of vehicles. Applicable. In addition, it is considered that it can be applied to a passenger such as a ship or an aircraft other than the vehicle.

Further, in the above embodiment, the lighting device 10, It is composed of a headlight and a taillight. However, the use of the lighting device is not limited to the headlights and the taillights. Others, for example, apply to brake lights, auxiliary lights (fog lights), and car width lights (stop lights). ), direction indicator (direction light), etc. Further, the headlights may be configured such that a headlight that can be switched to a long-distance light distribution characteristic and a near-light that has a light distribution characteristic at a close distance.

Further, the LED 21 of the light-emitting element is a white LED 21A and a red LED 21B each having a single color, but an LED of another luminescent color may be used. Furthermore, it is also possible to use a multi-color LED which can emit two or more colors by one element, and to illuminate them into mutually different colors. Needless to say, the LED 21 is not limited to the surface mount type LED chip, but may be an LED lamp in which the wafer is embedded in a cannonball type model, and other lamps or the like may be used as the light source.

In addition, all of the LEDs 21 are arranged on the same LED on one of the LED boards 20, and the LED boards 20 are not necessarily integrally molded, but may be combined into a plurality of components. In addition, the light projecting portion 32 of the lens array 30 and the indicator portion 33 are also integrally arranged on the base body 31 in a specific layout. However, other components may be formed as a single unit in combination.

Furthermore, the specific layout of each of the LEDs 21 on the LED substrate 20 is not limited to the configuration shown in each of the above embodiments, and is a design item that can be appropriately selected. In addition, with the arrangement of the LEDs 21, the specific portion of the light projecting portion 32 or the marking portion 33 on the base 31 of the lens array 30 The layout is not limited to the configuration shown in each of the above embodiments, and can be appropriately changed.

[Industrial use possibility]

The illuminating device according to the present invention is not limited to a lighting device that functions as a headlight or a taillight, and can be widely applied to a lighting device that realizes two different lighting patterns.

10‧‧‧Lighting device

11‧‧‧Light body

12‧‧‧ Storage Department

12a‧‧‧ outer periphery

13‧‧‧ Heat sink

14‧‧‧heat plate

20‧‧‧LED substrate

21A‧‧‧White LED

21B‧‧‧Red LED

30‧‧‧ lens array

31‧‧‧ base

32‧‧‧Projecting Department

33‧‧‧ Identification Department

322‧‧‧ Hole Department

Claims (5)

A lighting device for a vehicle, which is mounted on a vehicle body of a vehicle and has an illumination device formed by a plurality of light-emitting elements that emit different colors, and is characterized in that: the light emitted by each of the plurality of light-emitting elements is received An optical member configured by one unit, wherein the optical member includes a light-emitting element that emits light of a certain color among the plurality of light-emitting elements, and a light projecting portion that emits light of the one color incident toward the front, and emits the light. And the light-emitting element corresponding to the light emitting the other color, the visible portion of the light of the other color incident can be diffused from the outside. The illuminating device for a vehicle according to claim 1, wherein the optical member has a base body, and the light projecting portion and the indicator portion are arranged to match a specific layout of each of the corresponding light-emitting elements. The ones are arranged integrally on the base body. The illumination device for a vehicle according to claim 2, wherein each of the light-emitting elements is disposed on a single substrate, and the optical axis is oriented in the same direction; and the optical member is the substrate on the substrate. In the past, those who are configured in parallel. The illumination device for a vehicle according to claim 3, wherein each of the light-emitting portions and the light-emitting surface of the indicator portion is formed on at least the same plane on the surface side of the substrate. The illuminating device for a vehicle according to the first aspect of the invention, wherein the light projecting portion is formed by a lens, and the marking portion is formed by a light guide body. By.