JP2017084529A - Composite connector and lighting fixture for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent leakage of light to the outside reliably.SOLUTION: A composite connector includes a pair of connectors attached to the ends of electric cables and optical fibers, and connected each other so as to interconnect the electric cables and optical fibers, and a housing for holding the circumference near each connection end in the connection state of the connector. One connector has a male electric terminal projecting in the axial direction and a first fiber holding part. Axial length of the first fiber holding part is longer than the axial length of the male electric terminal, and the other connector has a female electric terminal and a second fiber holding part corresponding to the male electric terminal and the second fiber holding part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a composite connector for relay that simultaneously connects an electric cable and an optical cable, and a vehicular lamp including the composite connector.

In a composite connector that simultaneously connects an optical fiber and an electrical cable, a technology to prevent leakage of optical signals from the optical fiber when the composite connector is attached or detached is proposed from the viewpoint of ensuring safety for human eyes. Has been.
For example, Patent Document 1 discloses a laser light leakage prevention device including a plurality of connector portions for connecting an electric / optical composite wiring that transmits an electric signal and laser light. In the laser light leakage prevention device of Patent Document 1, laser light is emitted when all the connector portions are connected, and any one of the electric cables is disconnected or any connector portion is disconnected. In such a case, the leakage of the laser beam is prevented by blocking the emission of the laser beam. Further, even when only the optical fiber is disconnected due to the optical connector being pulled inadvertently or the like, the electric cable is also cut at the same time, thereby preventing the leakage of the laser beam.

JP 2004-260027 A

  However, in the technique of Patent Document 1, for example, when a worker accidentally removes the connector part while continuing to supply power to the light source during manufacturing or maintenance, the electrical connection in the connector part is released. There is a possibility that the end face of the connector portion is exposed and the laser light leaks to the outside before being emitted, that is, before the emission of the laser light is interrupted. Leakage of laser light to the outside is undesirable even for a moment.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to reliably prevent leakage of light to the outside and improve safety when disconnecting electrical / optical composite wiring.

One aspect of the present invention is a pair of first cables that are attached to ends of an electric cable and an optical fiber and are connected to each other so as to electrically connect the electric cables to each other and optically connect the optical fibers to each other. A connector and a second connector; and a housing that holds a peripheral edge in the vicinity of the connection end in the connected state of the first connector and the second connector, the connection side end surface of the first connector being connected to the connection side end surface first fiber holding portion and the male electrical terminal projecting in the axial direction is formed from, than the axial length L _E of the axial length of the first fiber holder L _L is the male electrical terminals A long composite connector in which a second fiber holding portion and a female electric terminal corresponding to the first fiber holding portion and the male electric terminal are formed on the connection side end surface of the second connector. To provide the data.

  According to the present invention, it is possible to reliably prevent leakage of light to the outside and to improve safety when releasing connection in the electrical / optical composite wiring.

It is sectional drawing of the axial direction which shows schematic structure of the composite connector which concerns on this invention. It is sectional drawing of the axial direction which shows schematic structure of the composite connector which concerns on this invention. In the composite connector which concerns on this invention, it is sectional drawing of the axial direction which shows schematic structure of a ferrule and a ferrule holding | maintenance part. In the composite connector which concerns on this invention, it is sectional drawing of the axial direction which shows schematic structure of a ferrule and a ferrule holding | maintenance part. In the composite connector which concerns on this invention, it is sectional drawing of the axial direction at the time of inserting a ferrule front-end | tip in a ferrule holding | maintenance part. In the composite connector which concerns on this invention, it is sectional drawing of the axial direction at the time of rotating the connector 11 or the connector 12 from the state which inserted the ferrule tip into the ferrule holding | maintenance part. In the composite connector which concerns on this invention, it is sectional drawing of the axial direction which shows the connection state of the connectors 11 and 12. FIG. FIG. 6A is a plan view of the connectors 11 and 12 constituting the composite connector according to the present invention, FIG. 6A is a plan view seen from the connection end side of the connector 12, and FIG. It is the top view seen from the end side. It is explanatory drawing which shows schematic structure which concerns on 1st Embodiment of the vehicle lamp which concerns on this invention. It is explanatory drawing which shows schematic structure which concerns on 2nd Embodiment of the vehicle lamp which concerns on this invention. It is explanatory drawing which shows schematic structure which concerns on 3rd Embodiment of the vehicle lamp which concerns on this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings shown below, hatching is appropriately omitted even in a cross-sectional view for easy understanding and improved visibility. Further, in the following description, even in the case of different embodiments and modifications, the same components are denoted by the same reference numerals, and the description thereof is omitted.

<Embodiment related to composite connector>
An embodiment according to the composite connector of the present invention will be described.

1 and 2 are axial sectional views showing a schematic configuration of the composite connector 1 according to the present embodiment.
The composite connector 1 includes a pair of connectors 11 and 12 (first connector and second connector) that are attached to the ends of the electric cable 2 and the optical fiber 3 and a housing 13 that holds the peripheral edges of the connectors 11 and 12. I have.

The connector 11 houses the electric cable 2 and the optical fiber 3 on the base end side 11b, and protrudes in the axial direction from the end surface 11a on the connection side with the connector 12 and a ferrule (first fiber holding portion) 16. have. The male electrical terminal 15 is connected to the tip of the electrical cable 2, and the ferrule 16 is connected to the optical fiber 3. The length L _L of the axial direction of the ferrule is made longer than the axial length L _E of the male electrical terminal 15.

Relationship between the axial length L _E of the axial length L _L and the male electrical terminals 15 of the ferrule, the connection between the connector 11 and the connector 12 is released, the two connectors 11, 12 axially When moving, even if the male electrical terminal 15 is first removed from the female electrical terminal 17 (described later), the tip of the ferrule 16 is still long enough not to be removed from the ferrule holding portion 18 (described later). .
Setting of the axial length L _E of the axial length L _L and the male electrical terminals 15 of the ferrule can be suitably determined according to a light source light is incident to the optical fiber 3.

  For example, when the light source emits laser light such as a laser diode (LD), at least the male electrical terminal 15 and the female electrical terminal 17 are disconnected, and then the ferrule 16 and the ferrule holding unit 18 are The time until release is set to such a length as to keep the overlapping portion between the ferrule 16 and the ferrule holding unit 16 so as to ensure an exposure time that conforms to at least the intensity of the laser light in accordance with JIS C 6802. It is preferable.

  The connector 12 accommodates the electric cable 2 and the optical fiber 3 on the base end side 12b, and the female electric terminal 17 and the ferrule holding part corresponding to the male electric terminal 15 and the ferrule on the end surface 12a on the connection side with the connector 11. (Second fiber holding portion) 18 is provided. The female electrical terminal 17 is connected to the tip of the electrical cable 2, and the ferrule holding part 18 is connected to the optical fiber 3.

  The housing 13 supports the movement in the axial direction when the connectors 11 and 12 are connected and disconnected, and holds the peripheral edges of the connectors 11 and 12 in the connected state.

In the composite connector 1 configured as described above, the connectors 11 and 12 are connected and disconnected as follows.
When connecting the composite connector 1, one or both of them are brought close to each other with the axes of the connectors 11 and 12 aligned, and the connectors 11 and 12 are connected along the housing 13. At this time, the ferrule 16 is first connected to the ferrule holding part 18, and then the male electric terminal 15 and the female electric terminal 17 are connected.

  Next, when the connection of the composite connector 1 is released, the connection is released by moving the connectors 11 and 12 in the axial direction along the housing 13 and separating them. At this time, first, the male electrical terminal 15 is detached from the female electrical terminal 17, and then the ferrule 16 is detached from the ferrule holding part 18.

Here, for example, the electric cable 3 connected to the male electric terminal 15 and the female electric terminal 17 is connected to the optical fiber 3, and the electric power supply part of the drive circuit of the light source or the electric power supply part of the circuit that controls the drive circuit If the male electrical terminal 15 and the female electrical terminal 17 are disconnected, the output of the light source is stopped and light is not emitted.
In this state, when the connectors 11 and 12 are further moved away from each other, the ferrule 16 and the ferrule holding part 18 are detached, and the ferrule is exposed to the outside. However, since the output of the light source is stopped, the light is outside. Will not be injected.

  The housing 13 has such a length that one end in the axial direction of the housing 13 is attached to the outer peripheral edge of the connector 11 in the vicinity of the connection side end, and the other end in the axial direction of the housing 13 reaches at least the tip of the ferrule 16. ing. Further, the housing 13 is formed in a cylindrical shape so as to hold the entire periphery of the connection ends of the connectors 11 and 12, and the inner peripheral surface of the housing 13 and the outer periphery of the connectors 11 and 12 are close enough to be detachable. doing.

  By doing in this way, since the other axial end of the housing 13 has a length that reaches at least the tip of the ferrule 16, the male electrical terminal 15 can be disconnected from the female electrical terminal 17. The end portion of the housing 13 and the end portion of the connector 12 are held in an overlapping state. That is, even if the male electrical terminal 15 is detached from the female electrical terminal 17, the overlap between the housing 13 and the connector 12 is maintained until the ferrule 16 is completely removed from the ferrule holding portion 18, and the housing 13 and the connector 11, In this state, a gap that does not communicate with the outside is formed.

  Therefore, even when light is emitted from the tip of the ferrule 16 or when there is a gap between the outer wall of the ferrule 16 and the inner wall of the ferrule holding unit 18, the outer wall of the ferrule 16 and the ferrule holding unit 18 The light reflected from the inner wall of the housing is reflected by the inner wall of the housing 13 and stays in this gap, so that it can be prevented from leaking to the outside.

  As the optical fiber 3, either a single mode fiber or a multimode fiber can be applied, and a configuration using a plurality of fibers can condense light from a plurality of light sources into a single fiber. It can also be set as the structure which carried out. In addition, the diameters of the optical fibers on the incident side and the emission side can be made different.

Furthermore, in general, the loss of light can be reduced by making the incident-side optical fiber diameter larger than the outgoing-side optical fiber diameter. As shown in FIG. 3, particularly in this case, a gap is formed between the outer wall 16a of the ferrule 16 and the inner wall 18a of the ferrule holding portion 18, and light leakage is likely to occur (arrow in FIG. 3).
Even in this case, the end of the housing 13 has such a length as to reach the tip of the ferrule 16 so that light leakage to the outside can be prevented.

  Further, as shown in FIG. 4, a positioning pin 20 can be provided at the distal end portion of the ferrule 16, and a positioning hole 21 corresponding to the positioning pin 20 can be formed at the proximal end portion of the ferrule holding portion 18. By doing in this way, the output side optical fiber and the incident side optical fiber can be appropriately positioned, and light loss can be reduced.

(Modification)
Next, as a modification of the present embodiment, a composite connector having a structure in which at least one of the connectors 11 and 12 inhibits movement in the axial direction when the connectors 11 and 12 are separated when the connection between the connectors 11 and 12 is released will be described. .
In this modification, when connecting and disconnecting the connectors 11 and 12, not only a parallel movement of the connectors 11 and 12 in the axial direction but also a rotational movement around the ferrule 16 is used.

5A is a cross-sectional view in the axial direction when the tip of the ferrule 16 is inserted into the ferrule holding portion 18, and FIG. 5B is a diagram illustrating the rotation of the connector 11 or the connector 12 from the state where the tip of the ferrule 16 is inserted into the ferrule holding portion 18. FIG. 5C is a sectional view in the axial direction showing a connection state of the connectors 11 and 12. 6A is a plan view seen from the connection end side of the connector 12, and FIG. 6B is a plan view seen from the connection end side of the connector 11.
As shown in FIGS. 5A to 5C and FIG. 6, the ferrule 16 and the ferrule holding portion 18 are provided at the center of the connectors 11 and 12 in the axial direction.

A protrusion 25 protruding in the inner diameter direction is formed at the open end of the ferrule holding portion 18.
Further, a notch 26 corresponding to the protrusion 25 and a groove 27 for sliding the protrusion 25 around the axis of the ferrule 16 and restricting the sliding of the ferrule 16 in the axial direction are formed at the tip of the ferrule 16. Has been.

  In the composite connector configured as described above, when the connectors 11 and 12 are connected, the ferrule 16 and the ferrule holding portion 18 are aligned with the notch 26 of the ferrule 16 and the protrusion 25 of the ferrule holding portion 18 being aligned. The connectors 11 and 12 are translated so as to be inserted into the connector (FIG. 5A). When the protrusion 25 of the ferrule holding part 18 reaches the groove 27 of the ferrule 16 (FIG. 5B), the connector 11 or the connector 12 is rotated to align the male electrical terminal 1 and the female electrical terminal 17, and again the connector 11 And the connector 12 are moved in the axial direction to connect them (FIG. 5C).

  When the connection between the connectors 11 and 12 is released, the connector 11 and the connector 12 are moved in the axial direction in a direction to separate them, and the protrusion 25 of the ferrule holding portion 18 reaches the groove 27 of the ferrule 16 (FIG. 5B). Then, the connector 11 or the connector 12 is rotated to align the notch 26 of the ferrule 16 with the protrusion 25 of the ferrule holding portion 18. In this state, the connectors 11 and 12 are moved in the axial direction so that the ferrule 16 is detached from the ferrule holding part 18 (FIG. 5A).

  As described above, in either case of connection or release of connection, the protrusion 25 is brought into contact with the groove 27 to restrict the movement of the connectors 11 and 12 in the axial direction. Therefore, after the male electric terminal 15 is detached from the female electric terminal 17, it takes time for the ferrule 16 to move from the ferrule holding part 18, and it takes time to rotate, and the leakage of light to the outside more reliably. Can be prevented.

  In this modification, when the connectors 11 and 12 are connected and disconnected, the connectors 11 and 12 are moved around the ferrule 16 so as to inhibit the movement in the axial direction (parallel movement). The necessary configuration has been described.

  The configuration that inhibits the parallel movement of the connectors 11 and 12 in the axial direction is not limited to the configuration that requires the rotational movement described above. That is, by applying some load during the parallel movement of the connectors 11 and 12, the parallel movement of the connectors 11 and 12 in the axial direction is hindered, and the time required for the ferrule 16 to be disengaged from the ferrule holding unit 18 becomes long. Any configuration may be used. Thereby, leakage of light to the outside can be prevented more reliably. For example, a protrusion can be provided on the outer peripheral edge of one connector, and a groove corresponding to the protrusion can be provided on the peripheral edge of the other connector.

<Embodiment related to vehicle lamp>
Hereinafter, an embodiment of a vehicle lamp to which the above-described composite connector is applied will be described.
(First embodiment)
Hereinafter, a first embodiment according to a vehicle lamp will be described. FIG. 7 is an explanatory diagram showing a schematic configuration of the vehicular lamp 30 according to the present embodiment.
The vehicular lamp 30 includes a composite connector 1, a light source unit 32 that emits laser light, a power source 33 that supplies power to the light source drive circuit 31, an optical fiber 3 that guides laser light from the light source unit 32, and a wavelength conversion member 34. And an optical system 37 having a reflector 35 and an optical member 36 for reflecting the wavelength-converted light.

The light source unit 32 includes a light emitting element such as a laser diode (LD), is driven by the light source driving circuit 31, and emits laser light having a predetermined wavelength to the incident end of the optical fiber 3.
The light source driving circuit 31 is electrically connected to the power source 33 via the power cable 2 and the composite connector 1, and controls the driving of the light source unit 32 by being supplied with a voltage from the power source 33.

  The light source unit 32 is optically connected to the wavelength conversion member by the optical fiber 3 and the composite connector 1. The optical fiber 3 guides the laser beam emitted from the light source unit 32 to the emission end via the composite connector 1 and causes the laser beam to enter the wavelength conversion member.

  In addition, the light source unit 32 is converted by a wavelength conversion member disposed at the exit end of the optical fiber 3 to obtain light having a desired wavelength, for example, a blue region (for example, an emission wavelength is 450 nm), a near ultraviolet region, or the like. (For example, the emission wavelength is 405 nm) or light of other wavelengths is emitted.

  The wavelength conversion member 34 is disposed at the exit end of the optical fiber 3 and is held together with the optical fiber 3 by a housing 38. The wavelength conversion member 34 converts at least a part of the laser light emitted from the light source unit 32 and emitted from the emission end of the optical fiber 3 to a desired wavelength. As the wavelength conversion member 34, for example, a phosphor that generates fluorescence using a part of laser light from the light source unit 32 as excitation light can be applied.

  The optical system 37 includes a reflector 35 and an optical member 36, reflects light that has been wavelength-converted by the wavelength conversion member 34, and projects the reflected light from the reflector 35 forward of the vehicle by the optical member 36.

  As described above, in the vehicular lamp 30 according to the present embodiment, the electric cable 2 is connected in series with the light source driving circuit for driving the light source unit 32 via the composite connector 1. For this reason, when the connection between the connectors 11 and 12 of the composite connector 1 is released, first, before the connection between the ferrule 16 and the ferrule holding portion 18 is released, the male electric terminal 15 and the female electric terminal 1 are firstly connected. Is released, and the driving of the light source unit 32 is stopped. Therefore, leakage of light to the outside can be reliably prevented when the connectors 11 and 12 are disconnected.

(Second Embodiment)
Hereinafter, a second embodiment according to the vehicle lamp will be described. FIG. 8 is an explanatory diagram showing a schematic configuration of the vehicular lamp 40 according to the present embodiment.
Unlike the vehicle lamp 30 described above, the light source drive circuit 31 in the vehicle lamp 40 is supplied with a voltage from a power source (not shown).

  The light source driving circuit 31 is connected to the electric cable 2 via the composite connector 1, and transmits / receives electric signals between the light source driving circuit 31 and the electric cable 2 to determine whether the composite connector 1 is connected. The composite connector 1 checks whether the light source driving circuit 31 and the electric cable 2 are connected. The light source drive circuit 31 determines that the light source drive circuit 31 and the electric cable 2 are not connected when the electrical signal cannot be transmitted and received, and stops driving the light source unit 32.

  As described above, in the vehicular lamp 40 according to the present embodiment, the electric cable 2 is connected in series with the light source driving circuit for driving the light source unit 32 via the composite connector 1, and the light source driving circuit 31 and the electric cable 2 are connected. Connection confirmation is performed as to whether the gap is connected by the composite connector 1 or not. For this reason, when the connection between the connectors 11 and 12 of the composite connector 1 is released, first, before the connection between the ferrule 16 and the ferrule holding portion 18 is released, the male electric terminal 15 and the female electric terminal 1 are firstly connected. Is disconnected. At this time, the light source driving circuit 31 determines that the electrical signal could not be transmitted and received, and stops driving the light source unit 32. Therefore, leakage of light to the outside can be reliably prevented when the connectors 11 and 12 are disconnected.

(Third embodiment)
Hereinafter, a third embodiment according to the vehicle lamp will be described. FIG. 9 is an explanatory diagram showing a schematic configuration of the vehicular lamp 50 according to the present embodiment.
The vehicular lamp 50 includes a reflected light detection unit 39 that detects reflected light from the reflector.

The light detection unit 39 is connected to the light source drive circuit 31 via the composite connector 1, detects light of a specific wavelength among the reflected light from the reflector 3, and outputs a detection signal to the light source drive circuit 31. The specific wavelength here refers to the wavelength of light after wavelength conversion by the wavelength converter 34.
The light source drive circuit 31 controls the drive of the light source unit 32 based on the detection signal from the reflected light detection unit 39.

  As described above, in the vehicular lamp 50, the reflected light detection unit 39 detects reflected light having a specific wavelength from the reflector 39 and transmits a detection signal based on the detected light to the light source driving circuit 31. That is, in the vehicular lamp 50, the reflected light detection unit 39 outputs a detection signal corresponding to the wavelength based on the reflected light of the specific wavelength, and the light source drive circuit 31 drives the light source unit 32 according to this detection signal.

  However, for example, when the wavelength conversion member 34 is detached from the output end of the optical fiber 3 due to some external load, the laser light is directly reflected by the reflector 3, and the reflected light detection unit 39 has a specific wavelength. The detection signal based on the reflected light cannot be output. In this case, the light source driving circuit 31 ensures the safety by stopping the driving of the light source unit 32.

  Similarly, when the connection between the connectors 11 and 12 of the composite connector 1 is released, the connection between the male electric terminal 15 and the female electric terminal 1 is first released. At this time, the light source drive circuit 31 cannot receive the detection signal based on the reflected light of the specific wavelength from the reflected light detection unit 39, and thus the drive of the light source unit 32 is stopped using this as a trigger. Therefore, when the connection between the connectors 11 and 12 is released, the drive of the light source unit 32 is stopped before the connection between the ferrule 16 and the ferrule holding unit 18 is released, so that leakage of light to the outside can be reliably prevented. .

DESCRIPTION OF SYMBOLS 1 ... Composite connector, 2 ... Electrical cable, 3 ... Optical fiber, 11, 12 ... Connector (1st connector, 2nd connector), 13 ... Housing, 15 ... Male type Electrical terminals, 16 ... ferrule (first fiber holding part), 17 ... female electrical terminal, 18 ... ferrule holding part (second fiber holding part), 20 ... positioning pins, 21 ..Positioning hole, 25 ... protrusion, 26 ... notch, 27 ... groove, 31 ... light source drive circuit, 32 ... light source section, 33 ... power source, 34 ... wavelength Conversion member, 35 ... reflector, 36 ... optical member, 37 ... optical system

Claims (9)

A pair of first and second connectors that are attached to the ends of the electrical cable and the optical fiber and electrically connect the electrical cables by being connected to each other and optically connect the optical fibers;
In the connection state between the first connector and the second connector, a housing that holds the peripheral edges near the connection ends of each other,
A first fiber holding portion and a male electrical terminal protruding in the axial direction from the connection side end surface are formed on the connection side end surface of the first connector, and an axial length L _{L of} the first fiber holding portion is longer than the axial length L _E of the male electrical terminals,
A composite connector in which a second fiber holding part and a female electric terminal respectively corresponding to the first fiber holding part and the male electric terminal are formed on the connection side end face of the second connector. One end in the axial direction of the housing is attached to the outer peripheral edge in the vicinity of the connection side end of the first connector,
The composite connector according to claim 1, wherein the other axial end of the housing is formed so as to reach at least a distal end portion of the first fiber holding portion.   3. The composite connector according to claim 1, wherein the housing is formed in a cylindrical shape that holds the entire periphery of the vicinity of the connection end between the first connector and the second connector. A positioning pin is provided at the tip of the first fiber holding portion,
The composite connector according to any one of claims 1 to 3, wherein a positioning hole corresponding to the positioning pin is formed in a proximal end portion of the second fiber holding portion.   2. The structure according to claim 1, wherein at least one of the first connector and the second connector has a structure that inhibits movement in an axial direction when the first connector and the second connector are separated from each other when the connection is released. The composite connector according to claim 1. The first fiber holding part and the second fiber holding part are respectively provided in the axial center of the first connector and the second connector;
A protrusion protruding in the inner diameter direction is formed at the opening end of the second fiber holding portion,
A notch corresponding to the protrusion and a groove that slides the protrusion around the axis at the distal end of the first fiber holding portion and restricts sliding in the axial direction at the distal end of the first fiber holding portion. The composite connector according to claim 5 formed. The composite connector according to any one of claims 1 to 6,
A light source unit that is driven by a light source driving circuit to emit laser light;
A power supply for supplying a voltage to the light source driving circuit via the composite connector;
An optical fiber for guiding the laser light from the light source unit through the composite connector;
A wavelength conversion member that converts at least part of the laser light emitted from the optical fiber into a desired wavelength;
A vehicle lamp comprising an optical system having a reflector that reflects light subjected to wavelength conversion and an optical member that projects light reflected by the reflector toward the front of the vehicle. The composite connector according to any one of claims 1 to 6,
A light source unit that is driven by a light source driving circuit to emit laser light;
An optical fiber for guiding the laser light from the light source unit through the composite connector;
A wavelength conversion member that converts at least part of the laser light emitted from the optical fiber into a desired wavelength;
An optical system having a reflector that reflects the wavelength-converted light and an optical member that projects the reflected light from the reflector to the front of the vehicle;
The light source drive circuit is connected to an electrical cable for connection confirmation via a composite connector, and an electrical signal is transmitted and received between the electrical cables from the light source drive circuit to check whether the composite connector is connected. A vehicular lamp that stops driving the light source unit when an electric signal cannot be transmitted and received. The composite connector according to any one of claims 1 to 6,
A light source unit that is driven by a light source driving circuit to emit laser light;
An optical fiber for guiding the laser light from the light source unit through the composite connector;
A wavelength conversion member that converts at least part of the laser light emitted from the optical fiber into a desired wavelength;
An optical system having a reflector that reflects the wavelength-converted light, and an optical member that projects the reflected light from the reflector toward the front of the vehicle;
A reflected light detection unit connected to the light source drive circuit via the composite connector, detecting a light of a specific wavelength among the reflected light from the reflector and outputting a detection signal to the light source drive circuit;
A vehicle lamp in which the light source driving circuit controls driving of the light source unit based on a detection signal from the reflected light detection unit.

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