CN107435882A - Lighting device - Google Patents

Abstract

The present invention provides a lighting device, which can form different lighting fixtures into a simple device, which can be easily installed even in a limited space, and the degree of freedom in appearance design is also increased, and can be greatly improved. reduce costs. A lighting device (10) which is mounted on a vehicle body of a vehicle and has a plurality of LEDs (21) emitting lights of different colors, and has a unit configured to receive light emitted by each LED (21). A lens array (30) having a light projecting part (32) corresponding to the white LED (21A) of each LED (21) to emit the incident white light toward the front, and a light projecting part (32) corresponding to the red LED (21B) Correspondingly, the incident red light is diffused into a marking portion (33) that can be visually recognized from the outside.

Description

lighting device

technical field

The present invention relates to a lighting device that is mounted on a body of a vehicle and includes a plurality of light emitting elements that emit light of different colors, and more particularly relates to a lighting device that doubles as a headlight and a taillight of a railway vehicle.

Background technique

Conventionally, as such lighting devices for vehicles, for example, headlights, taillights, and the like equipped on railway vehicles are known. Here, headlights are referred to as front marker lights in the relevant laws and regulations related to railways, and illuminate the direction of travel of the vehicle at night, that is, the front, so as to improve the visibility of the driver. In addition, it can be seen from the vehicle at night. The front confirmation lights up. In addition, the tail light is called a rear marker light in relevant laws and regulations related to railways, and indicates the rear of the vehicle by light or reflection, and notifies the existence of itself to other vehicles running behind. As mentioned above, the respective functions of the headlights and the taillights are completely different.

Headlights and taillights also have different light distribution characteristics and light colors as main components due to the difference in the above-mentioned functions. That is, in a headlamp, a long-distance light distribution characteristic is required for illuminating the light far ahead, and the light color is usually specified as white. In addition, in the tail lamp, as long as it has short-distance light distribution characteristics to the extent that it can be visually recognized from the outside, the light color is defined as red. Therefore, headlights and taillights are composed of different lighting fixtures (for example, refer to Patent Documents 1 and 2).

However, railroad vehicles sometimes switch between the leading vehicle and the rearmost vehicle in order to change the direction of travel after arriving at a terminal station. In order to cope with the above-mentioned situation, as shown in Figure 14 (a), the front (rear) end of the front (most rear) vehicle is respectively installed in advance. Either one of the headlamp 1 or the tail lamp 2 is selectively illuminated.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2013-141953

Patent Document 2: Japanese Unexamined Patent Publication No. 2013-010467

Contents of the invention

However, as in the prior art disclosed in the above-mentioned Patent Documents 1 and 2, when the headlights and taillights have completely different structures, it is necessary to ensure the arrangement of the headlights and taillights separately in the limited exterior space of the vehicle. space. Therefore, there is a problem that it is difficult to study the vehicle body equipment space, and constraints on the appearance design arise. In addition, since different lighting fixtures are prepared, the number of parts and the man-hours for installation also increase, and there is also a problem that the cost increases.

However, in the case of switching between the leading vehicle and the rearmost vehicle, it is considered that it is convenient to have functions of both headlights and taillights. However, as shown in FIG. 14( b ), in a plan to combine only the headlight 1 and the taillight 2 so as to be close to each other, the result is that the arrangement space for different lighting fixtures needs to be prepared does not change. In addition, the number of parts has not been reduced. Therefore, it is expected how to realize the functions of the headlight and the taillight by one device with a simple structure.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a lighting device that can compose mutually different lighting fixtures including headlights and taillights into a simple one device, and it is easy to use even in a limited space. This can be easily mounted, and the degree of freedom in appearance design is also increased, and the cost can be significantly reduced.

The gist of the present invention for achieving the above objects resides in the following aspects.

[1] A lighting device 10 that is mounted on a body of a vehicle and includes a plurality of light emitting elements 21 that emit lights of different colors. The lighting device 10 is characterized in that:

has an optical component 30 configured to receive light emitted by the plurality of light emitting elements 21 respectively,

The optical member 30 includes a light projecting unit 32 that emits incident light of one color toward the front corresponding to the light emitting element 21A that emits light of a certain color among the plurality of light emitting elements 21 , and a light projecting unit 32 that emits light of another color. The light emitting element 21B correspondingly diffuses the incident light of the other color into the marking portion 33 that can be visually recognized from the outside.

[2] The vehicle lighting device 10 according to the above [1], wherein:

The above-mentioned optical component 30 is formed with a base body 31,

The light projecting part 32 and the marking part 33 are arranged integrally on the base body 31 in a predetermined layout matched with the respective corresponding light emitting elements 21 .

[3] The vehicle lighting device 10 according to the above [2], wherein:

The above-mentioned light emitting elements 21 are respectively arranged on one substrate with their optical axes facing the same direction,

The base 31 of the optical component 30 is arranged in parallel in front of the substrate.

[4] The vehicle lighting device 10 according to the above [3], wherein:

The output surfaces of the light projecting part 32 and the marker part 33 are formed on at least the same plane on the front side of the base body 31 .

[5] The lighting device 10 for a vehicle according to any one of [1], [2], [3], or [4] above, wherein:

The light projecting unit 32 is formed of a lens, and the marking unit 33 is formed of a light guide.

Next, the effect brought by the above-mentioned technical solution will be described.

In the lighting device 10 described in [1] above, although there are a plurality of light emitting elements 21 that emit light of different colors, the optical component 30 that receives the light emitted by each light emitting element 21 constitutes a unit, and the optical component 30 It includes a light projection unit 32 and a marker unit 33 that realize different light distribution characteristics. Therefore, instead of simply combining different lighting devices, one lighting device 10 can also serve as various lighting fixtures.

In particular, the light projecting part 32 and the marking part 33 are not only different in the direction of the emitted light. The light projecting part 32 emits the light incident from the light-emitting element 21A emitting light of a certain color toward the front, while the marking part 33 diffuses the light incident from the light-emitting element 21B emitting light of another color so that it can be seen from the outside. It was confirmed that although the functions including the respective light distribution characteristics are completely different, they can be realized in one unit.

As the above-mentioned optical component 30, for example, as described in the above [2], it may also be configured to have a base 31, and be provided on the base 31 so that the light projecting part 32 and the marking part 33 respectively correspond to each other. The light emitting elements 21 are arranged in a predetermined layout. Here, besides the light projecting part 32 and the marking part 33, for example, components formed separately can also be combined to form a unit, but if they are arranged to be integrally arranged in advance on the base body 31, the number of components can be reduced, Assembly hours.

In addition, the mounting position and arrangement of the plurality of light-emitting elements 21 are not particularly limited, but, for example, as described in [3] above, if they are respectively arranged on one substrate so that the optical axes face the same direction, it is possible to Treated as one light source substrate. In addition, since all the light emitting elements 21 are oriented in the same direction regarding the substrate itself, they can be collectively and easily mounted, and can be easily produced. In addition, the optical component 30 only needs to arrange the base body 31 in parallel in front of the substrate on which the light emitting elements 21 are arranged.

In addition, as described in the above [4], if the respective emission surfaces of the light projecting part 32 and the marking part 33 are formed on at least the same plane on the surface side of the above-mentioned base 31, then the optical component 30 as a unit Both the structure itself and the arrangement relative to the light source substrate can be further simplified.

Regarding the configuration of the above-mentioned light projecting part 32 and the above-mentioned marking part 33, specifically, as described in [5] above, if a lens is used for the above-mentioned light projecting part 32 and a light guide is used for the above-mentioned marking part 33, then Functions including respective light distribution characteristics can be easily realized, and further cost reduction can be achieved.

The effects of the present invention are as follows.

According to the lighting device of the present invention, mutually different lighting fixtures including headlights and taillights can be constituted as a simple one device, which can be easily installed even in a limited space, and the degree of freedom in design Also increased, and can significantly reduce costs.

Description of drawings

Fig. 1 is an exploded perspective view showing a lighting device according to a first embodiment of the present invention.

Fig. 2 is a perspective view showing a lighting device according to a first embodiment of the present invention.

3 is a perspective view of the lens array of the lighting device according to the first embodiment of the present invention viewed from the back side.

4 is a perspective view of the lens array of the lighting device according to the first embodiment of the present invention viewed from the front side.

5 is a perspective view showing a light emitting state of the lighting device according to the first embodiment of the present invention.

6 is a perspective view of the lens array of the lighting device according to the second embodiment of the present invention viewed from the front side.

7 is an exploded perspective view showing a lamp body and an LED substrate of a lighting device according to a third embodiment of the present invention.

Fig. 8 is a perspective view showing a light emitting state of an illumination device according to a third embodiment of the present invention.

9 is an exploded perspective view showing a lamp body and an LED board of a lighting device according to a fourth embodiment of the present invention.

10 is a perspective view of the lens array of the lighting device according to the fourth embodiment of the present invention viewed from the back side.

11 is a perspective view of the lens array of the lighting device according to the fourth embodiment of the present invention viewed from the front side.

Fig. 12 is a perspective view showing a light emitting state of a lighting device according to a fourth embodiment of the present invention.

13 is a perspective view of the lens array of the lighting device according to the fifth embodiment of the present invention viewed from the front side.

Fig. 14 is an explanatory diagram showing the arrangement of headlights and taillights of a conventional railway vehicle.

In the figure: 10—lighting device, 11—lamp body, 12—accommodating part, 12a—outer periphery, 13—radiating fin, 14—radiator, 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—substrate, 32—light projection part, 33—marking part, 33A—logo Part, 33B—identification portion, 321—exit surface, 322—hole portion, 323—recess, 324—outer peripheral surface.

detailed description

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

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

The lighting device 10 of the present embodiment is mounted on a vehicle body of a vehicle and includes a plurality of light emitting elements that emit lights of different colors. Hereinafter, a lighting fixture serving as a headlight and a taillight applied to a railway vehicle as a vehicle will be described as an example.

The lighting device 10 is attached, for example, to the vehicle body at the front (rear) of the front (rear) vehicle including a cab among railway vehicles not shown. On both sides of the front wall under the driver's cab of the leading vehicle, mounting portions for mounting the lighting devices 10 are respectively provided, and the lighting devices 10 are mounted in pairs on the right and left facing forward. The size of the mounting portion here does not need to be a space for arranging two general lighting fixtures such as headlights and taillights to fit together, but only needs to be a space where one lighting fixture can be installed.

As shown in FIG. 1 , the lighting device 10 has a lamp body 11 also serving as a heat sink, an LED substrate 20 on which LEDs 21 as a plurality of light emitting elements are mounted, and a lens that is an optical component that is a unit configured to receive light from each LED 21. array30. The lighting device 10 is mainly assembled from these three components, and each component is unitized in advance.

The lamp body 11 is integrally formed of, for example, metal such as aluminum alloy, and a cylindrical housing portion 12 for housing the LED substrate 20 and for mounting the lens array 30 is provided on the front side. The accommodating part 12 is opened forward, and the outer peripheral edge 12a protrudes like a flange. The bottom of the accommodating portion 12 forms a flat mounting surface, and although not shown, insertion holes and the like through which wirings supplied with electric power from a power supply mounted on the vehicle pass are provided at appropriate positions. In addition, a heat sink 14 is provided on the back side of the lamp body 11, and the heat sink 14 is provided with a plurality of cooling fins 13 extending rearward in parallel.

The LED board 20 has a circular shape with a size matching the mounting surface of the bottom of the housing portion 12, and a wiring circuit is formed on the surface, and a plurality of LEDs 21 are mounted on the wiring circuit. Here, the LED 21 is, for example, a surface-mounted LED chip, and its structure is a general structure, so detailed description is omitted, but it is a type that emits light within a radiation range at a predetermined angle around the optical axis perpendicular to the chip surface. . The light emission color of LED21 can be selected arbitrarily, but in this embodiment, white LED21A which emits white light which is light of one color, and red LED21B which emits red light which is light of another color are used.

Here, white LED21A and red LED21B are LEDs of the same structure which differ only in light emission color, respectively, and when white LED21A and red LED21B are collectively called hereafter, these are described as LED21. Each of these LEDs 21 is arranged on the surface of the LED board 20 with its optical axis facing the same direction perpendicular to the surface. That is, when viewed from the front side of the LED board 20 , even in any luminous color, all light is set to be emitted straight forward.

The white LED 21A corresponds to a function as a “headlight”, and white light from the white LED 21A is emitted forward as it is through a lens array 30 described later. On the other hand, red LED 21B corresponds to the function of "tail light", and similarly, red light from red LED 21B is diffused by lens array 30 so that it can be visually recognized from the outside.

The specific layout of the LEDs 21 on the surface of the LED board 20 is a design item that can be selected appropriately, but in this embodiment, the respective numbers and arrangements are determined considering the functions of the white LEDs 21A and the red LEDs 21B. That is, eight white LEDs 21A are arranged at equal intervals in the circumferential direction along the outer periphery of the LED substrate 20 in FIG. Two LED substrates 20 are also placed in a vertical arrangement in the approximate center of the LED substrate 20 , and a total of ten LED substrates are mounted.

On the other hand, since the red LED 21B is only required to be always visible from the outside, it is arranged on the surface of the LED board 20 in a blank portion of the arrangement position of each of the above-mentioned white LEDs 21A. Specifically, in FIG. 1 , three white LEDs 21A arranged in a row in the center of the LED board 20 are arranged three above and below each other, and a total of six are mounted. As mentioned above, the number (light quantity) of red LED21B may be less than white LED21A.

As shown in FIGS. 3 and 4 , the lens array 30 includes a disk-shaped one base 31 of a size that matches the mounting surface of the bottom of the housing portion 12 . The light projection part 32 corresponding to white LED21A among the said LED21, and the indicator part 33 corresponding to red LED21B are contained in this base body 31. As shown in FIG. The aforementioned lens array 30 is integrally formed of transparent materials such as acrylic and polycarbonate, for example. The lens array 30 is mounted so as to cover the opening of the housing portion 12 in a state of facing in parallel in front of the LED board 20 mounted on the bottom of the housing portion 12 .

The light projecting part 32 is comprised by the lens body provided so that it may correspond to each white LED21A, and is a member which injects the white light from white LED21A, and emits toward the front. As shown in FIG. 4 , the lens body as the light projecting portion 32 has a bottomed hole portion 322 that opens and is recessed toward the emission surface 321 side connected to the surface of the base body 31 at its center, and the bottom surface of the hole portion 322 is formed to a predetermined Lens shape.

The light projecting portion 32 bulges further rearward in a bowl shape from the back surface of the base 31 so as to surround the hole portion 322 , and a concave portion 323 into which white light from the opposing white LED 21A enters is formed at the tip end thereof. In the state where the base body 31 and the above-mentioned LED substrate 20 are opposed in parallel, the optical axes of the white LEDs 21A on the LED substrate 20 are perpendicular to the center of the concave portion 323 (the axis of the light projecting portion 32 ) of each light projecting portion 32 . It is arranged on the base body 31 in a manner of crossing the ground.

The bottom surface of the concave portion 323 is also formed in a predetermined lens shape so as to face the bottom surface of the hole portion 322 . In addition, the bowl-shaped outer peripheral surface 324 of the light projecting part 32 is set so as to become a critical reflection surface that totally reflects the light incident from the concave part 323 toward the output surface 321, and according to its curved shape and inclination angle, Totally reflected light is emitted from the exit surface in the desired direction and light distribution characteristics.

Next, the indicator part 33 is a light guide body which makes the red light from this red LED 21B enter and diffuse|diffused so that it may be visually recognized from the exterior corresponding to red LED 21B. Specifically, the marking portion 33 is equivalent to all of the blank portion on the front and back of the substrate 31 other than the above-mentioned light projecting portion 32, and is provided so that the incident light can be suppressed by embossing or printing, or coating of a light-diffusing material, etc. in the blank portion. red light diffuser. That is, on the back surface of the base body 31 , for example, processing for diffusing light such as embossing and printing is performed on the entire blank area except the bulging outer peripheral surface 324 of each light projecting portion 32 .

The process of diffusing light by the marking portion 33 is not limited to the back side of the base body 31 , and may be performed on the blank portion on the front side other than the exit surface 321 of each light projecting portion 32 . The emission surface of the marker portion 33 is basically a blank portion on the surface side of the base body 31 except for the emission surface 321 of each light projecting portion 32 . However, since the red light from the red LED 21B is also guided to the light projection unit 32 integrally connected to the indicator unit 33 , (a part of) the light projection unit 32 may also be used as the indicator unit 33 .

Such light projecting parts 32 and marking parts 33 are provided so as to be integrally arranged on the base body 31 in a predetermined layout matched with the corresponding LEDs 21 . That is, each light projecting part 32 is arrange|positioned so that each axial center may arrange|position in the position which overlaps with the optical axis of white LED21A. On the other hand, the marking part 33 is provided on the base body 31 over the entire area of the blank part except the light projecting part 32, and is arranged so as to receive and diffuse light from any one of the red LEDs 21B. In the present embodiment, the output surfaces of the light projecting portion 32 and the marking portion 33 are formed so as to be continuous on the same plane as the front surface side of the base body 31 .

Next, the action of the lighting device 10 of this embodiment will be described.

In this lighting device 10 , white LEDs 21A that emit light as headlights and red LEDs 21B that emit light as tail lights are mounted on one LED substrate 20 , and a lens array 30 that receives light from these LEDs 21 is also configured as a single unit. In particular, in the lens array 30 , the light projecting unit 32 and the marking unit 33 that realize different light distribution characteristics are integrated, so that the number of components constituting the lens array 30 is small, and the entire device can also be miniaturized.

This also facilitates installation of the front wall below the cab, which is a limited space on the exterior of the vehicle. In addition, since the illuminating device 10 does not require an extra space for arrangement, the degree of freedom in design increases, and further modifications can be made. In addition, the structure of the mounting portion of the vehicle exterior for installing the lighting device 10 and the drawing of wiring can also be simplified, thereby reducing the manufacturing cost of the vehicle. Although not shown in the figure, the lighting device 10 is mounted as a pair of left and right when viewed from the front wall of the leading vehicle, and is similarly mounted as a pair of left and right on the rear wall of the rearmost vehicle.

When power is supplied to the lighting device 10 from a power source mounted on the vehicle, each LED 21 on the LED board 20 lights up in accordance with the operation of a switch or the like provided on a driver's seat in the cab. In addition, the control mechanism may be used so that in addition to the control from lighting to flickering of each LED 21 , it is also possible to control the illuminance and the like. In addition, the heat generated when the LED 21 is turned on is directly transferred to the bottom surface of the housing portion 12 directly connected to the LED substrate 20 , and is efficiently dissipated to the outside from the heat sink 13 of the heat sink 14 on the back side of the lamp body 11 .

In the lighting device 10 of the leading vehicle, the white LED 21A corresponding to the headlight among the LEDs 21 on the LED board 20 is turned on. White light from white LED 21A enters from concave portion 323 at the center of bowl-shaped outer peripheral surface 324 of light projecting portion 32 that is a lens body in lens array 30 . The white light incident on the concave portion 323 is condensed by the corner shape of the inner peripheral surface of the concave portion 323 , and emitted from the output surface 321 in a predetermined direction and light distribution characteristic as a headlight.

Specifically, a portion of the white light incident on the concave portion 323 directed toward the axial direction is collimated by the lens shape of the bottom surface of the concave portion 323 and the bottom surface of the opposing hole portion 322 , and is straight forward from the bottom surface of the hole portion 322 . to shoot. In addition, the other part of the white light diffused from the axis is totally reflected by the bowl-shaped outer peripheral surface 324 , and is emitted slightly forward and downward from the emission surface 321 .

Here, each light projecting unit 32 may be uniformly set to have a light distribution characteristic in which all emit light in the same direction, but a part may be set to have a different light distribution characteristic. For example, only four of the light projecting parts 32 corresponding to the four white LEDs 21A arranged in a row in the center of the LED board 20 are used for low beams, and they are directed downwards obliquely intersecting the optical axis of the white LEDs 21A. The lens shape of the emitted light may be a lens shape that emits light toward the front substantially parallel to the optical axis of the white LED 21A by using the other light projecting units 32 arranged on both sides of the LED board 20 for high beam.

On the other hand, in the lighting device 10 of the rearmost vehicle, among the LEDs 21 on the LED board 20 , the red LED 21B corresponding to the tail light is turned on. The red light from the red LED 21B enters the marking portion 33 serving as a light guide in the lens array 30 , that is, the blank portion on the rear surface of the base body 31 excluding the light projecting portion 32 . The red light incident on the marking portion 33 is reflected in various directions through processes such as embossing and printing that diffuse light, and is emitted as light that is diffused on the surface of the substrate 31 and can be visually recognized from the outside, so that the marking portion 33 The whole glows red.

As described above, one lens array 30 is provided not only with the light projecting portion 32 as a lens for a normal headlight, but also with a marker portion 33 as a light guide for a tail light by utilizing the blank portion on the base 31. This lighting device 10 Play the functions of both headlights and taillights. Here, the light projecting part 32 and the marking part 33 are not only different in the direction of emitting light respectively. That is, while the light projecting part 32 emits the light which entered from white LED21A toward the front, the indicator part 33 diffuses the light which entered from red LED21B so that it can be visually recognized from the outside.

In particular, among railway vehicles, there is a case where the front vehicle and the last vehicle are switched in accordance with the time of arrival at the terminal station and the destination. At this time, when the leading vehicle becomes the rearmost vehicle, the red LED 21B is turned on instead of the white LED 21A, and the lighting device 10 functions as a tail light next time. Conversely, when the rearmost vehicle becomes the leading vehicle, the red LED 21B is replaced and the white LED 21A is turned on, so that the lighting device 10 functions as a headlight next time.

As described above, the present lighting device 10 is not a simple combination of different types of lighting devices, and various lighting fixtures can be realized as a single unit with one lighting device 10 . In addition, as described above, each LED 21 is not only switched to be lit (ON) or extinguished (OFF), but also to increase the illuminance of the white LED 21A of the headlight, for example, in conjunction with the adjustment of the illuminance.

In addition, as a structural feature of the present lighting device 10, in the lens array 30, the respective emission surfaces of the light projecting portion 32 and the marking portion 33 are formed on the same plane on the surface side of the base 31, therefore, as a unit The structure of the lens array 30 itself and the arrangement relative to the LED substrate 20 can be further simplified. In addition, since a lens is used for the light projecting part 32 and a light guide is used for the above-mentioned indicator part 33, functions including respective light distribution characteristics can be easily realized, and cost reduction can be achieved. In addition, the lens array 30 also functions as a cover member covering the housing portion 12, but the lens array 30 may be covered with another cover.

In addition, the mounting position and arrangement of each LED 21 are not particularly limited, but they are arranged on one LED board 20 with their optical axes facing the same direction as in this embodiment, so they can be handled as one component. Moreover, since all LED21 are also in the same direction about the LED board|substrate 20 itself, each LED21 can be collectively and simply mounted, and can manufacture easily.

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

In this embodiment, the structure of the lens array 30A is different from the lens array 30 of the first embodiment, and the light projecting part 32 is common, but the specific structure of the marking part 33A is different. That is, the marking part 33A is not on the back surface of the base body 31, but on the front side except the exit surface 321 of the above-mentioned light projecting part 32, and is densely arranged with prism-standard ridges with a small arc-shaped cross-section. The form is uneven.

The red light emitted from the red LED 21B can be more effectively diffused over a wide range by the unevenness of the indicator portion 33A described above. In addition, the same code|symbol is attached|subjected to the part of the same type as 1st Embodiment, and overlapping description is abbreviate|omitted.

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

In this embodiment, the LED board 20A is different in structure from the LED board 20 of the first embodiment. In the LED board 20A, three white LEDs 21A are arranged on both sides along the outer peripheral edge of the board, and a total of six are arranged. Moreover, red LED21B is arranged in a row in the center of 20 A of LED board|substrates so that it may be located in the middle of each white LED21A of both sides, and is arrange|positioned four in total.

In the layout of each LED 21 described above, the red LED 21B is omitted from the LED substrate 20 of the first embodiment, and the white LED 21A arranged in a row in the center is replaced with the red LED 21B. This depends on the result of considering the brightness required as a headlight, the irradiation distance, and the range. Compared with the first embodiment, even if the number of white LEDs 21A is reduced, these white lights pass through the respective corresponding light projection parts 32 And the light is projected, so that the function as a headlight can be realized.

In addition, although red LED21B is arrange|positioned in a row, red light from each red LED21B is diffused through the said light projection part 32 respectively corresponding so that it can be visually recognized from the outside. In the above-mentioned light projecting part 32 corresponding to each red LED 21B, light does not need to be projected but needs to be diffused, so it is also possible to seal a light diffusing agent inside the lens body of the light projecting part 32 or to separate the light emitting surface 321 from the above-mentioned light emitting part. The blank portion is similarly processed to diffuse light by embossing, printing, embossing, or the like, so that the whole emits red light.

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

In this embodiment, not only the LED substrate 20B but also the structure of the lens array 30B is different from the LED substrate 20 and the lens array 30 of the first embodiment. As shown in FIG. 9 , in the LED board 20B, a total of five white LEDs 21A are arranged so that one is arranged at the center of the board and four are arranged at equal intervals along the outer periphery of the board. Moreover, red LED21B is arrange|positioned so that four may be arrayed at equal intervals in the circumferential direction rather than each white LED21A lined up on the board|substrate outer periphery closer to the board|substrate center.

On the base body 31 of the lens array 30B, the light projection part 32 which consists of a lens body similarly to the said light projection part 32 is provided in the position corresponding to said four white LED21A. In addition, a rib serving as a light guide is integrally projected as a marker portion 33A in a blank portion between the light projecting portions 32 on the back surface of the base body 31 . As shown in FIG. 10 , the reinforcing ribs serving as the marking portion 33A extend vertically and horizontally in a grid-like orthogonal manner, and form a frame skeleton partially connected in an arc along the outer periphery of the substrate. The intersecting position in the rib is a position corresponding to the above-mentioned four red LEDs 21B, and the red light from the red LED 21B enters from this intersecting position. In addition, a rib serving as the indicator portion 33A is housed inside the housing portion 12 of the lamp body 11 .

As shown in FIG. 12 , for the red light incident on the marking portion 33A, in addition to locally brightening and emitting light from the surface side of the base 31 connected to the edge of the rib, the entire surface of the base 31 can also emit red light. of light. Here, processing for diffusing light by embossing, printing, or the like may be performed on blank portions of each light projecting portion 32 other than the emission surface 321 in the same manner as the above-mentioned marking portion 33 . According to the fourth embodiment described above, white light can be projected from the entire surface of the lens array 30B, and red light can also be emitted substantially uniformly. In addition, the same code|symbol is attached|subjected to the part of the same type as 1st Embodiment, and overlapping description is abbreviate|omitted.

Fig. 13 shows a fifth embodiment of the present invention.

In this embodiment, the structure of the lens array 30C is different from the lens array 30 of the first embodiment, and the light projecting part 32 and the marking part 33 (see FIG. The marking portion 33B protrudes in a flange shape. In addition, the same code|symbol is attached|subjected to the part of the same type as 1st Embodiment, and overlapping description is abbreviate|omitted.

The above-mentioned flange-shaped marking part 33B also protrudes to the outside of the housing part 12 of the lamp body 11, so that the red light from the red LED 21B is guided through the marking part 33, and the whole emits red light. Thereby, the light emission of the indicator part 33B can be visually confirmed easily also from the side of a vehicle. In addition, in the lens array 30C of the fifth embodiment, the marking portion 33B is added to the lens array 30 of the first embodiment, but in addition, the lens array 30 of the second embodiment and the lens array of the third embodiment may be configured as The array 30A and the lens array 30B of the fourth embodiment are provided with a marker 33B.

Embodiments of the present invention have been described above with reference to the drawings, but specific configurations are not limited to the above-described embodiments, and changes and additions within the scope of the present invention are included in the present invention. For example, in the above-mentioned embodiment, a railway vehicle was described as an example of a vehicle to which the present invention is applied, but it is not limited to a railway vehicle, and it can also be applied to other various types of vehicles including automobiles traveling on roads. vehicle. In addition, application to vehicles such as ships and airplanes is also conceivable in addition to vehicles.

In addition, in the above-mentioned embodiment, the lighting device 10 is configured to also serve as a headlight and a taillight, but the application of the lighting device is not limited to the headlight and the taillight, and can also be applied to, for example, brake lights, auxiliary lights ( Fog lights), car frame lights (small lights), direction indicators (signaling devices), etc. In addition, the headlight may be configured to be switchable between high beam having a light distribution characteristic for a long distance and low beam having a light distribution characteristic for a short distance.

In addition, although white LED21A and red LED21B which emit light of a single color are used for LED21 which are light emitting elements, LEDs of other light emission colors may be used. In addition, it is also possible to use a multi-color LED capable of emitting light of two or more colors from one element to emit light of mutually different colors. Of course, the LED 21 is not limited to a surface mount type LED chip, and may be a model LED lamp in which a chip is embedded, and another lamp or the like may be used as a light source.

In addition, all the LEDs 21 are arranged in the same direction on the same plane on one LED board 20 , but the LED board 20 does not need to be an integrally molded product, and may be combined with a plurality of divided parts. In addition, the light projecting portion 32 and the marking portion 33 of the lens array 30 are also integrally arranged in a predetermined layout on the base body 31 , but apart from this, separate components may be combined to form a single unit, for example.

In addition, the specific layout of each LED21 on the LED board 20 is not limited to the layout shown in each said embodiment, It is a design matter which can be selected suitably. In addition, the specific layout of the light projecting part 32 and the marking part 33 on the base body 31 of the lens array 30 is not limited to the layout shown in each of the above-mentioned embodiments, and can be appropriately changed in accordance with the arrangement of the LEDs 21 .

Industrial availability

The lighting device of the present invention is not limited to lighting devices that function as headlights and tail lights, and can be widely applied to lighting devices that realize two different light emission modes.

Claims (5)

1. a kind of lighting device, be installed on the car body of vehicle and multiple light-emitting components with the light for sending different colors and Into, above-mentioned lighting device is characterised by,

With optical component, a unit for receiving the light that the multiple light-emitting component is sent respectively is consisted of,

The optical component possesses：Light-projecting portion, it is luminous with the light for sending some color in the multiple light-emitting component Element accordingly makes the light of a color of incidence be emitted towards front；And mark part, its light with sending other colors Light-emitting component accordingly make the light of other colors of incidence be diffused as from external view to confirm.

2. for motor vehicle lighting device according to claim 1, it is characterised in that

There is the optical component matrix to form,

The light-projecting portion and the mark part are arranged to the defined cloth coordinated with each light-emitting component corresponding with difference Office integratedly arranges on the matrix.

3. for motor vehicle lighting device according to claim 2, it is characterised in that

Each light-emitting component is configured with the same directional state of optical axis on one substrate respectively,

The described matrix of the optical component abreast configures in the front of the substrate.

4. for motor vehicle lighting device according to claim 3, it is characterised in that

The respective exit facet of the light-projecting portion and the mark part is at least formed at the identical flat of the face side of described matrix On face.

5. according to for motor vehicle lighting device any one of claim 1,2,3 or 4, it is characterised in that

The light-projecting portion is made up of lens, and the mark part is made up of light conductor.