JP2006032045A - Vehicular lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular lighting fixture of which appearance at the time of lighting can be made novel. <P>SOLUTION: Six light emitting diodes 20 of the vehicular lighting fixture are divided into two light emitting groups A and B, and at the time of controlling light emission of respective light emitting diodes 20, the light emission quantities of the respective light emitting groups A and B are changed periodically with distinct values respectively keeping the total light emission quantity from a plurality of the light emitting diodes 20 constant. Therefore lighting way of respective light emitting diodes 20 look swinging or slow flowing. Consequently the appearance of the vehicular lighting fixture becomes novel. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicular lamp, and more particularly, to a vehicular lamp configured to be used as a marker lamp such as a tail lamp or a stop lamp.

  2. Description of the Related Art Conventionally, a vehicular beacon lamp is known that includes a light source, a reflector that reflects light from the light source forward, and a lens provided in front of the reflector. In this kind of vehicle sign lamp, not only the reflected light from the reflector but also the direct light from the light source is irradiated forward, so when the lamp is turned on, the appearance when the lamp is observed from the outside is ordinary. The appearance is not so good.

  Then, the lamp | ramp using an indirect illumination effect was proposed (refer patent document 1). As shown in FIG. 9, the lamp includes a plurality of LED light sources 1, a Fresnel lens 2 that converts light from each LED light source 1 into parallel light, and reflects the parallel light from the Fresnel lens 2 toward the front of the lamp. And a translucent cover 4 provided on the front side of the reflector 3. In this lamp, the light from each LED light source 1 is converted into parallel light by the Fresnel lens 2, the parallel light is reflected by the reflector 3 toward the front of the lamp, and only the reflected light is irradiated to the front of the lamp. Therefore, the appearance when the lamp is lit can be improved by the indirect illumination effect.

JP 2003-59313 A

  In the prior art, since the indirect illumination effect is used, it is possible to improve the appearance when the lamp is turned on, compared to the direct illumination. However, no consideration is given to controlling the light emission amount of each LED light source 1, and since the entire lamp is always lit in a constant state, the appearance at the time of lighting is mediocre.

  The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is to make the appearance at the time of lighting innovative.

  In order to achieve the object, the vehicle lamp according to claim 1 includes a plurality of light sources, and a lighting control circuit that controls the lighting by dividing the plurality of light sources into a plurality of light emitting groups. The control circuit is configured such that the light emission amounts from the plurality of light sources are constant, and the light emission amounts of the respective light emission groups are periodically changed with different values.

  (Operation) When turning on a plurality of light sources, the light emission amounts from the plurality of light sources are made constant, that is, the light emission amounts emitted from the lamps are made constant by taking into account the reflectance and transmission efficiency of the light source light. Since the light emission amount of the group is changed periodically with different values, the light emission amount is different for each light emission region corresponding to each light emission group, and it seems that the light emission method fluctuates in the whole light emission region, It can be seen as if the light is flowing slowly, and it has a novel appearance.

  The vehicle lamp according to claim 2 is the vehicle lamp according to claim 1, wherein the light guide is disposed on the front lens side among the front lens and the plurality of light sources and the front lens. The light guide is configured to enter and guide light from a light source belonging to a first light emitting group among the plurality of light emitting groups, and to irradiate the guided light toward the front lens. In this configuration, light from a light source belonging to a light emitting group different from the first light emitting group among the plurality of light emitting groups is transmitted toward the front lens.

  (Operation) Light from a light source belonging to the first light emitting group is incident on the light guide to guide the light, and the guided light is irradiated toward the front lens, and the light emitting group is different from the first light emitting group. When light from a light source belonging to the light enters the light guide and is transmitted toward the front lens, the light emission amount from the plurality of light sources is constant and the light emission amounts of the respective light emission groups are periodically different from each other. As a result, the light fluctuates in the depth direction or the front-rear direction of the lamp, resulting in a more innovative appearance.

  The vehicle lamp according to claim 3 is the vehicle lamp according to claim 1, wherein the light guide is disposed on the front lens side among the front lens and the plurality of light sources and the front lens. And a reflector disposed on the rear side of the lamp relative to the light guide, wherein the light guide receives light from a light source belonging to the first light emitting group among the plurality of light emitting groups. The light guides and irradiates the guided light toward the front lens and transmits the light from the reflector. The reflector is a first light-emitting group among the plurality of light-emitting groups. Light from light sources belonging to different light emitting groups is incident, and the incident light is reflected toward the front lens.

  (Operation) With the front lens arranged in front of the lamp as a reference, the reflector and the light guide are arranged in the depth direction or the front-rear direction of the lamp to guide light from the light sources belonging to the first light emitting group. The light is incident on the body and guided, and the guided light is irradiated toward the front lens, and the light from the light source belonging to the light emitting group different from the first light emitting group is reflected by the reflector, and the reflected light is reflected. When irradiating the front lens, the amount of light emitted from the plurality of light sources is constant, and the amount of light emitted from each light emitting group periodically changes with a different value. Light is emitted with different light emission amounts, and light fluctuation occurs in the depth direction or the front-rear direction of the lamp, resulting in a more innovative appearance.

  The vehicle lamp according to claim 4 is the vehicle lamp according to claim 1, wherein the light guide is disposed on the front lens side among the front lens and the plurality of light sources and the front lens. And a second light guide disposed on the rear side of the lamp relative to the light guide, wherein the light guide emits light from a light source belonging to the first light emission group among the plurality of light emission groups. Incident light is guided, and the guided light is irradiated toward the front lens, and the light from the second light guide is transmitted. In the light emitting group, light from a light source belonging to a light emitting group different from the first light emitting group is incident and guided, and the guided light is irradiated toward the front lens.

  (Operation) The light guide and the second light guide are stacked in the depth direction or the front-rear direction of the lamp with reference to the front lens arranged on the front side of the lamp, and the light source belonging to the first light emitting group Light is incident on the light guide and guided to the front lens, and the light from the second light guide is transmitted, and the light emission is different from that of the first light emitting group. When the light from the light sources belonging to the group is incident on the second light guide and guided to the front lens, the amount of light emitted from the plurality of light sources is constant in each state. Since the light emission amount of the light emission group changes periodically with different values, the light emission amount in the light guide and the light emission amount in the second light guide are different, and light is emitted in the depth direction or the front-rear direction of the lamp. Fluctuations occur, resulting in a more innovative appearance.

  In the vehicular lamp according to a fifth aspect, in the vehicular lamp according to any one of the first, second, third, and fourth aspects, each of the plurality of light sources includes a light emitting diode.

  (Function) By configuring each light source with a light emitting diode, the responsiveness can be improved as compared with the case where an incandescent bulb or a neon tube is used as the light source.

  In the vehicular lamp according to a sixth aspect, in the vehicular lamp according to the fifth aspect, the lighting control circuit emits light from the light-emitting diode by driving a current flowing through the light-emitting diode with an ON / OFF pulse. It was set as the structure which controls quantity.

  (Operation) The amount of light emitted from the light emitting diode can be arbitrarily controlled in accordance with the pulse by driving the current flowing through the light emitting diode with the ON / OFF pulse.

  As is clear from the above description, the vehicular lamp according to claim 1 can have a novel appearance.

  According to claim 2, it is possible to make the appearance more innovative.

  According to claim 3, it is possible to make the appearance more innovative.

  According to the fourth aspect, a more innovative appearance can be achieved.

  According to the fifth aspect, the responsiveness can be improved more than when an incandescent bulb or a neon tube is used as the light source.

  According to the sixth aspect, the light emission amount of the light emitting diode can be arbitrarily controlled according to the pulse.

  Next, embodiments of the present invention will be described based on examples. 1 is a front view of an essential part of a vehicular lamp according to an embodiment of the present invention, FIG. 2 is a sectional view of an essential part taken along line II-II in FIG. 1, and FIG. 3 is a circuit configuration diagram of a lighting control circuit. 4A is a waveform diagram of a PWM signal for controlling the light emitting diodes belonging to one light emitting group (first light emitting group), and FIG. 4B is the other light emitting group (first light emitting group). FIG. 5A is a waveform diagram showing a change in brightness of the light emitting diodes belonging to one light emitting group, and FIG. 5B is a waveform diagram of PWM signals for controlling the light emitting diodes belonging to a different light emitting group). FIG. 6C is a waveform diagram showing a change in brightness of a light emitting diode belonging to the other light emitting group, FIG. 6C is a waveform diagram showing a change in brightness of the entire light emitting diode, and FIG. 6 shows a plurality of light emitting diodes in three groups. Vehicle lamps when they are divided into It is a schematic diagram, (a) is a front schematic diagram when there are six light emitting diodes, (b) is a front schematic diagram when there are fifteen light emitting diodes, and (c) is eighteen light emitting diodes. FIG. 7 is a waveform diagram for explaining the change in brightness of each group when the light-emitting diodes are divided into three groups, and FIG. 8 is an indirect illumination optical system and light guide optics. It is principal part sectional drawing which shows the Example when a system is used.

  In these drawings, the vehicular lamp 10 includes a lamp unit 12 as a tail lamp among the marker lamps provided at the left corner portion or the right corner portion of the vehicle rear end, and the lamp unit 12 includes a lamp body 14. And a front lens (or front cover) 16.

  The lamp unit 12 includes a reflector 18, a plurality of light emitting diodes 20, and a board 22, and the reflector 18 is fixed around the lamp body 14. A plurality of (six) concave small reflectors 24 are formed at a substantially central position in the up-down direction of the reflector 18 at equal pitches in the left-right direction, and the light-emitting diodes 20 are housed in the small reflectors 24, respectively. ing. Each light emitting diode 20 is disposed so as to protrude forward from a small hole of each small reflector 24, and a terminal is connected to the board 22. That is, each light-emitting diode 20 is disposed behind the front lens 16 as a direct-light source, and is disposed along a direction intersecting with the optical axis of each light-emitting diode. A light source group distributed linearly along the line is configured. The board 22 is fixed to the lamp body 14, and each light emitting diode 20 mounted on the board 22 is connected to the lighting control circuit 26 via a lead wire.

  As shown in FIG. 3, the lighting control circuit 26 includes a microcomputer 28 having a function as a pulse generator that generates a PWM (pulse width modulation) signal as a pulse signal, and a transistor (MOSFET) 30 as a switching element. , 32.

  Here, when controlling lighting of the plurality of light emitting diodes 20, the six light emitting diodes 20 are divided into a plurality of light emitting groups, for example, a light emitting group A and a light emitting group B, and the light emission amounts from the plurality of light emitting diodes 20. Is constant, and the light emission amounts of the light emission groups A and B are periodically changed with different values.

  The light emitting diodes 20 are alternately arranged in the light emitting groups A and B (see FIG. 1), and the light emitting diodes 20 belonging to the light emitting group A have a resistance (current limiting resistor) R1 on the anode side. Connected to the battery + B, the cathode side is connected to the drain terminal of the transistor 30, and the light emitting diodes 20 belonging to the light emitting group B have the anode side connected to the battery + B via the resistor (current limiting resistor) R1, and the cathode side It is connected to the drain terminal of the transistor 32 (see FIG. 3). The transistor 30 has a source terminal grounded and a gate terminal connected to the output terminal 28a of the microcomputer 28 via a resistor R2. The transistor 32 has a source terminal grounded and a gate terminal connected to the microcomputer 28 via a resistor R2. Are connected to the output terminal 28b. A PWM signal 100 as shown in FIG. 4A is output from the output terminal 28a of the microcomputer 28 to the transistor 30, and a PWM signal 102 as shown in FIG. 4B is output from the output terminal 28b. The signal is output to the transistor 32.

  In order to periodically change the light emission amounts of the respective light emitting groups A and B with different values, the PWM signals 100 and 102 are output as pulse signals having different duty ratios, but the light emission amounts from the plurality of light emitting diodes 20 Is set so that the sum of the ON period Ta in one period T of one PWM signal 100 and the ON period Tb in one period T of the other PWM signal 102 is always constant. Therefore, when the transistors 30 and 32 perform the switching operation according to the PWM signals 100 and 102, the brightness of the light emitting diodes 20 belonging to the light emitting group A is as shown in FIG. The brightness of the light emitting diodes 20 that change and belong to the light emitting group B changes as shown in FIG. For example, one of the light emitting diodes 20 becomes brighter by increasing the amount of light emission, while the other light emitting diode 20 becomes darker by decreasing the amount of light emission. On the other hand, the overall brightness of the light emitting diodes 20 belonging to the light emitting group A and the light emitting diodes 20 belonging to the light emitting group B is always a constant brightness as shown in FIG. Range). Moreover, the period when the brightness of each light emitting diode 20 changes is set to 2 to 3 seconds.

  When the vehicular lamp 10 having the above-described configuration is mounted on a vehicle and enters the tail lamp lighting mode, the microcomputer 28 outputs PWM signals 100 and 102 having different duty ratios to the transistors 30 and 32, and the transistors 30 and 32. With the switching operation, a rectangular wave current synchronized with the PWM signal 100 flows through the light emitting diodes 20 belonging to the light emitting group A, and a rectangular wave synchronized with the PWM signal 102 flows through the light emitting diodes 20 belonging to the light emitting group B. Current flows. As a result, the brightness of the light emitting diodes 20 belonging to the light emitting group A periodically changes according to the PWM signal 100, and the brightness of the light emitting diodes 20 belonging to the light emitting group B changes periodically according to the PWM signal 102. The drive period for each light emitting diode 20 is set to 10 mS (100 Hz), for example, and the amount of light emission is controlled visually as continuous light. At this time, the light emitting regions associated with the lighting of the light emitting diodes 20 belonging to each light emitting group are alternately formed along the surface of the front lens 16, and belong to the light emitting regions associated with the light emission of the light emitting diodes 20 belonging to the light emitting group A and the light emitting group B. Since the brightness of the light emitting area changes alternately when the light emitting diodes 20 are turned on, when the light emitting diodes 20 are turned on, the light emitting diodes 20 appear to be swaying or light is slowly flowing. Can be innovative.

  In the present embodiment, the six light-emitting diodes 20 are divided into two light-emitting groups A and B. However, as shown in FIG. The lighting groups A, B, and C can be divided and the lighting thereof can be controlled.

  Further, when dividing the plurality of light emitting diodes 20 into three light emitting groups A, B, and C, for example, as shown in FIG. The upper light emitting diode 20 is A, B, C, A, B, the middle light emitting diode 20 is C, A, B, C, A, and the lower light emitting diode 20 is B, C, A, B, C. It is also possible to adopt a configuration that divides. Further, as the grouping of the 15 light emitting diodes 20, the light emitting diodes 20 belonging to the respective light emitting groups A, B, and C can be randomly arranged.

  In addition, as shown in FIG. 6C, 18 light emitting diodes 20 are arranged around a backup lamp 34 that lights when the vehicle moves backward and a turn signal lamp 36 that blinks when the vehicle turns right or left. Assuming that each light emitting diode 20 belongs to the light emitting groups A, B, and C, the light emitting diodes 20 can be divided in order as A, B, C, A, B, C,.

  When the plurality of light emitting diodes 20 are divided into three light emitting groups A, B, and C and the lighting thereof is controlled, in addition to the transistors 30 and 32 that drive the switching of the light emitting diodes 20 belonging to the light emitting groups A and B, the light emission is performed. A transistor for switching and driving the light emitting diodes 20 belonging to the group C is provided, and this transistor is connected to the output terminal of the microcomputer 28, and PWM signals having different duty ratios are output from the three output terminals to the three transistors. A configuration in which the brightness of the light emitting diodes 20 belonging to the light emitting groups A, B, and C is sequentially controlled can be employed. In this case, in order to periodically change the light emission amounts of the respective light emitting groups A, B, and C with different values while setting the light emission amounts from the plurality of light emitting diodes 20 as shown in FIG. By shifting the phase at which the brightness of the light emitting diodes 20 belonging to A, B, and C is maximum or minimum by 120 degrees, the light emission amount of each light emitting group can be changed periodically with different values.

  In this embodiment, since the plurality of light emitting diodes 20 are divided into three light emitting groups A, B, and C and the lighting thereof is controlled, the light emission of each light emitting diode 20 appears to be shaking, You can make it look like it is flowing slowly, and it will look innovative.

  Next, an embodiment using an indirect illumination optical system and a light guide optical system will be described with reference to FIG.

  The vehicular lamp 10 according to the present embodiment includes a reflector 38 and a Fresnel lens 40 as an indirect illumination optical system for the plurality of light emitting diodes 20 arranged back and forth on the back side of the front lens 16. A light guide 42 is provided as a system, the light guide 42 is disposed on the back side of the front lens 16, and the reflector 38 is disposed above the Fresnel lens 40 and is disposed on the back side of the light guide 42. Has been. The reflector 38 is formed in a stepped shape on the front surface (surface facing the front lens 16), and is formed to extend obliquely upward and forward from the rear end portion of the Fresnel lens 40. In the reflector 38, a plurality of reflecting surfaces 38a by, for example, aluminum vapor deposition are formed at substantially equal intervals in the vertical direction on the surface of each end difference portion formed stepwise. The light from the light emitting diode 20 is incident on the front side of the reflector 38 via the Fresnel lens 40. In this case, the light emitted from the light emitting diode 20 is converted into parallel light by the Fresnel lens 40, and the parallel light is reflected at a substantially right angle by the reflecting surface 38a and emitted to the light guide 42 side. That is, the reflector 38 includes a reflection surface 38a that reflects the light from the light emitting diode 20 toward the front lens 16 in order to increase the irradiation area.

  The light guide 42 is made of, for example, acrylic resin as a light guide member, and is disposed above the light emitting diode 20 and substantially parallel to the reflector 38. The light guide 42 has a substantially stepped surface facing the reflector 38, and reflection surfaces 42a are formed at substantially equal intervals in the vertical direction inside the stepped portion. A transmissive portion 42b that transmits light from the reflector 38 is formed between the reflective surface 42a. Further, an incident portion 42 c for receiving light from the light emitting diode 20 is formed on the bottom side of the light guide 42. The light guide 42 receives the light from the light emitting diode 20 through the incident portion 42c and guides it, and reflects the guided light in a substantially right angle direction on the reflection surface 42a to irradiate the front lens 16 side. The reflected light reflected by the reflecting surface 38a of the reflector 38 is transmitted by the transmitting portion 42b, and the transmitted light is irradiated to the front lens 16 side. That is, the light guide 42 is formed with a reflective surface 42a that reflects incident light toward the front lens 16 in order to widen the irradiation area by using the light guide function, and a transmissive portion that transmits light from the reflector 38. 42b is formed, and an incident portion 42c for receiving light from the light emitting diode 20 is formed.

  When the vehicular lamp 10 according to the present embodiment is used as a tail lamp, the light emitting diode 20 disposed on the reflector 38 side is used as the light emitting diode belonging to the light emitting group A, and the light emitting diode 20 disposed on the bottom side of the light guide 42 is emitted. As the light emitting diodes belonging to the group B, when the light emission amounts from the plurality of light emitting diodes 20 are constant and the light emission amounts of the respective light emission groups A and B are periodically changed with different values, the light emission from the plurality of light emitting diodes 20 is performed. Since the light emission amount of each light emitting group periodically changes with a different value in a state where the amount is constant, fluctuation occurs in the front-rear direction or the depth direction of the lamp 10, and the light emission of each light emitting diode 20 is fluctuated. You can show it or make it look like the light is flowing slowly, and it is more innovative To become.

  In the present embodiment, the case where the reflector 38 as the reflector is disposed on the back side of the light guide 42 has been described. However, instead of the reflector 38, a light guide having the same configuration as that of the light guide 42 may be provided. Instead of 38, a configuration in which the light emitting diodes 20 are arranged as a direct subject can also be adopted.

  In the former case, the light guide 42 is disposed on the front lens 16 side between the plurality of light emitting diodes 20 and the front lens 16, and the second light guide is disposed on the rear side of the lamp with respect to the light guide 42. The light guide 42 receives and guides light from the light emitting diodes 20 belonging to the first light emitting group among the plurality of light emitting groups, irradiates the guided light toward the front lens 16, and The light from the second light guide is transmitted, and the second light guide receives light from the light emitting diodes 20 belonging to a light emitting group different from the first light emitting group among the plurality of light emitting groups. Then, the light can be guided, and the guided light can be irradiated toward the front lens 16.

  In the latter case, the light guide 42 receives and guides light from the light emitting diodes 20 belonging to a light emitting group different from the light emitting diodes 20 as a direct illuminant, and irradiates the guided light toward the front lens 16. In addition, it is possible to adopt a configuration in which light from the light emitting diode 20 as a direct illuminant is transmitted toward the front lens 16.

  Moreover, the structure of a present Example is applicable also to the vehicle lamp 10 shown in FIG. 1, FIG.

  In each of the above-described embodiments, the light emitting diode 20 is used as the light source. However, a white bulb, a neon tube, or the like can be used as the light source. However, the responsiveness to a change in brightness can be improved by using the light emitting diode 20 rather than using a white bulb or a neon tube as a light source.

  Moreover, when controlling the brightness of each light emitting diode 20, the brightness of each light emitting diode 20 changes sinusoidally, but the maximum value of the brightness of the light emitting diode 20 is set to a set time, for example, several By adopting the configuration of holding for 10 ms, it is possible to give a change to the fluctuation accompanying the light emission of the light emitting diode 20.

  Further, in each of the embodiments, the lighting control circuit 26 is configured to control the light emission amount of each light emitting diode 20 by driving the current flowing through each light emitting diode 20 with an ON / OFF PWM pulse. Therefore, the light emission amount of each light emitting diode 20 can be arbitrarily controlled according to the PWM pulse.

It is a top view of the vehicular lamp which shows one Example of this invention. It is principal part sectional drawing in alignment with the II-II line | wire of the vehicle lamp shown in FIG. It is a circuit block diagram of a lighting control circuit. (A) is a waveform diagram of a PWM signal for controlling light emitting diodes belonging to one light emitting group, and (b) is a waveform diagram of a PWM signal for controlling light emitting diodes belonging to the other light emitting group. (A) is a waveform diagram showing a change in brightness of a light emitting diode belonging to one light emitting group, (b) is a waveform diagram showing a change in brightness of a light emitting diode belonging to the other light emitting group, and (c) is a waveform diagram showing. It is a wave form diagram which shows the change of the brightness of the whole light emitting diode. It is a front schematic diagram of a vehicle lamp when a plurality of light emitting diodes are divided into three groups, (a) is a front schematic diagram when there are six light emitting diodes, and (b) is 15 light emitting diodes. The front schematic diagram at the time of a piece, (c) is a front schematic diagram at the time of 18 light emitting diodes. It is a wave form chart for explaining change of the brightness of each group when a light emitting diode is divided into three groups. It is principal part sectional drawing which shows an Example when an indirect illumination optical system and a light guide optical system are used. It is a longitudinal cross-sectional view of the vehicle lamp of the conventional example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle lamp 12 Lamp unit 14 Lamp body 16 Front lens 18 Reflector 20 Light emitting diode 22 Board 26 Lighting control circuit 28 Microcomputer 30, 32 Transistor 38 Reflector 42 Light guide

Claims (6)

  A plurality of light sources, and a lighting control circuit that divides the plurality of light sources into a plurality of light emitting groups and controls lighting thereof, and the lighting control circuit sets the light emission amounts from the plurality of light sources to be constant, A vehicular lamp in which the light emission amount of a group is periodically changed with different values.   The vehicular lamp according to claim 1, further comprising: a front lens; and a light guide disposed on the front lens side among the plurality of light sources and the front lens; The light from the light source belonging to the first light emitting group is incident and guided, and the guided light is emitted toward the front lens, and the first of the plurality of light emitting groups is irradiated with the first light. A vehicle lamp characterized by transmitting light from a light source belonging to a light emitting group different from the light emitting group toward the front lens.   The vehicular lamp according to claim 1, wherein a front lens, a light guide disposed on the front lens side among the plurality of light sources and the front lens, and a rear side of the lamp from the light guide. The light guide is configured to receive and guide light from a light source belonging to the first light emitting group among the plurality of light emitting groups, and to guide the light guided to the front surface. Irradiates the lens and transmits light from the reflector, and the reflector receives light from a light source belonging to a light emitting group different from the first light emitting group among the plurality of light emitting groups. And the vehicle lamp characterized by reflecting the incident light toward the said front lens.   The vehicular lamp according to claim 1, wherein a front lens, a light guide disposed on the front lens side among the plurality of light sources and the front lens, and a rear side of the lamp from the light guide. A second light guide disposed in the light guide, wherein the light guide guides light from a light source belonging to the first light emitting group among the plurality of light emitting groups, and guides the light. Is emitted toward the front lens and transmits light from the second light guide, and the second light guide is coupled with the first light emitting group among the plurality of light emitting groups. A vehicle lamp, wherein light from light sources belonging to different light emitting groups is incident and guided, and the guided light is irradiated toward the front lens.   5. The vehicular lamp according to claim 1, wherein each of the plurality of light sources is formed of a light emitting diode. 6.   6. The vehicular lamp according to claim 5, wherein the lighting control circuit controls a light emission amount of the light emitting diode by driving a current flowing through the light emitting diode with an ON / OFF pulse. Light fixture.

Images