JP6846718B2 - Light device - Google Patents

Description

The present disclosure relates to an in-vehicle light device.

Conventionally, an in-vehicle light device in which a millimeter-wave radar (hereinafter, also referred to as a “radar device”) is integrally arranged with a lamp (for example, a headlight or a backlight) that illuminates the outside of a vehicle is known (for example). , Patent Document 1).

Such an in-vehicle light device is suitable in that it saves space for mounting a millimeter-wave radar and contributes to improving the design of the vehicle body.

Japanese Unexamined Patent Publication No. 2008-186741

By the way, in this type of in-vehicle light device, a radar device and a reflector of a lamp (a reflecting member that collects light emitted by a light source and adjusts the irradiation range of the light) are arranged in close proximity to each other. Become. Therefore, in this type of in-vehicle light device, the electromagnetic wave transmitted from the radar device, reflected by the target, and returned may be re-reflected by the reflector and reach the antenna portion of the radar device.

In particular, the reflector reflects not only the light emitted from the light source but also the radio waves used in the radar device and the like. The reflector is a reflecting member having a planar spread, but when the radar device and the reflector are arranged close to each other, the reflection at the end of the reflector has the greatest effect. Therefore, the reflector is an antenna portion. May cause multiple reflections with the radar device or the like on which the antenna is arranged, and generate a standing wave between itself and the antenna unit. Then, such a standing wave causes fading in the electromagnetic wave arriving at the antenna portion, which deteriorates the detection performance of the target in the reception characteristics of the antenna portion.

The present disclosure has been made in view of the above problems, and provides an in-vehicle light device capable of suppressing deterioration of radar performance due to multiple reflections while integrally configuring a radar device and a lamp. The purpose.

Primary aspect of the present disclosure to solve the problems described above, a write device mounted on a vehicle, a light source for emitting light, and are arranged around the light source, irradiating the light to a predetermined region including the first direction arranged and including the lamp unit the cylindrical reflector front end is open, in the lower or upper side of the lamp unit, the circuit board substrate surface is substantially arranged horizontally, and the substrate surface of the circuit board is to send an electromagnetic wave in a second direction, and a radar unit comprising an array antenna, for receiving from the second direction a reflected wave from an object existing outside of the vehicle, said array antenna, the reflector the including a plurality of antenna elements arranged on the outside of the vehicle than the front end, the plurality of antenna elements are arranged in the fourth direction perpendicular to said second direction, is the front end of the front Symbol reflector , The fourth direction extends along a third direction different from the first direction and the second direction, and the fourth direction on the substrate surface is a direction intersecting with the first direction and the third direction. non-parallel directions der respect is, if the first direction and the second direction is the same direction, the front end of the reflector comprises a convex portion in the first direction is the La site equipment ..

According to the in-vehicle light device according to the present disclosure, it is possible to suppress deterioration of radar performance due to multiple reflections while integrally configuring the radar device and the lamp.

A perspective view showing an arrangement state of the light device according to the first embodiment in a vehicle. The plan view which shows the arrangement state in the vehicle of the light device which concerns on 1st Embodiment. Front view showing the arrangement state of the light device according to the first embodiment in a vehicle. Side sectional view showing an example of the configuration of the light device according to the first embodiment. Top view showing the positional relationship between the radar unit and the lamp unit of the light device according to the first embodiment. An upward perspective view showing the positional relationship between the radar unit and the lamp unit of the light device according to the first embodiment. The figure which shows the arrangement position of the antenna part in the light apparatus which concerns on modification 1. The figure which shows the arrangement position of the antenna part in the light apparatus which concerns on modification 2. Overall view showing an example of the configuration of the light device according to the second embodiment. Side sectional view showing an example of the configuration of the light device according to the second embodiment. Perspective view showing an example of the structure of the garnish material according to the second embodiment. Top view of the radar unit according to the second embodiment

Preferred embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the present specification and the drawings, components having substantially the same function are designated by the same reference numerals, so that duplicate description will be omitted.

(First Embodiment)
Hereinafter, an example of the configuration of the vehicle-mounted light device (hereinafter, abbreviated as “light device”) according to the present embodiment will be described with reference to FIGS. 1A, 1B, 1C, 2, 3 and 4. .. The light device according to the present embodiment is applied to a headlight that illuminates the front of the vehicle. Here, only the configuration of the headlight on the right side in front of the vehicle will be described.

In each figure, in order to clarify the positional relationship of each configuration, the direction in which the radar device (corresponding to the radar unit of the present invention) transmits an electromagnetic wave to the outside of the device is used as a reference (that is, the direction in which the object is detected). Indicates a common Cartesian coordinate system (X, Y, Z). In the following, the positive direction of the X-axis represents the forward direction in which the radar device transmits an electromagnetic wave to the outside of the device (hereinafter, abbreviated as "forward direction" or "first direction"), and the positive direction of the Y-axis is the positive direction of the radar device. It will be described as representing the left side direction (hereinafter, abbreviated as "left direction"), and the positive direction of the Z axis represents the upward direction of the radar device (hereinafter, abbreviated as "upward direction").

In the following, the plus Z direction corresponds to the upward direction of the vehicle, and the direction toward the plus Y direction side by about 30 degrees from the plus X direction corresponds to the traveling direction of the vehicle.

FIG. 1A is a perspective view showing an arrangement state of the light device U according to the present embodiment in a vehicle. FIG. 1B is a plan view showing an arrangement state of the light device U according to the present embodiment in the vehicle. FIG. 1C is a front view showing an arrangement state of the light device U according to the present embodiment in the vehicle.

The light device U according to the present embodiment includes a radar unit 10, a lamp unit 20a, 20b, 20c, and a housing 30.

In the light device U according to the present embodiment, three lamp units 20a, 20b, 20c are arranged adjacent to each other along the left-right direction, and the radar unit 10 is the lamp unit 20a, 20b, 20c. It is arranged on the lower side.

The radar unit 10 according to the present embodiment transmits an electromagnetic wave diagonally to the right (plus X direction) with respect to the traveling direction of the vehicle, and detects an object existing in the direction. Then, a radar unit (not shown) built in the headlight on the left side detects an object existing diagonally to the left with respect to the traveling direction of the vehicle.

FIG. 2 is a side sectional view of the light device U according to the present embodiment. FIG. 3 is a plan view showing the positional relationship between the radar unit 10 of the light device U and the lamp units 20a, 20b, and 20c according to the present embodiment. FIG. 4 is an upward perspective view showing the positional relationship between the radar unit 10 of the light device U and the lamp units 20a, 20b, and 20c according to the present embodiment.

The housing 30 forms a storage space in the front end region of the vehicle, and stores the radar unit 10 and the lamp units 20a, 20b, and 20c in the storage space. Further, the housing 30 has a front cover 30a that covers the front surface of the storage space. The housing 30 is made of, for example, a resin material (for example, polycarbonate or the like). Further, the front cover 30a is formed of, for example, a resin material having transparency to light (for example, polycarbonate or the like).

The lamp unit 20a includes a light source 21a and a reflector 22a.

The light source 21a is, for example, an LED lamp, an incandescent lamp, or the like, and emits light toward the front (here, a direction directed toward the minus Y direction by about 30 degrees from the plus X direction). The light source 21a is attached to the side wall on the rear side of the housing 30. As the light source 21a, a light source having a condenser lens may be used.

The reflector 22a is arranged so as to surround the periphery of the light source 21a, collects the light emitted by the light source 21a, and adjusts the irradiation range of the light. The reflector 22a is composed of, for example, a quadrangular pyramid-shaped tubular member having an opening directed to the front side and an opening diameter increasing toward the front side. The reflector 22a is formed of, for example, a metal member such as an aluminum material. Further, the reflector 22a may be formed by metallizing the resin member.

The lamp units 20b and 20c have the same configuration as the lamp unit 20a, and are composed of light sources 21b and 21c and reflectors 22b and 22c surrounding the light sources 21b and 21c, respectively. The lamp units 20a, 20b, and 20c are equipped with, for example, a system called an adaptive high beam system that automatically shifts the irradiation area of the headlight.

Hereinafter, any of the lamp unit 20a, the lamp unit 20b, and the lamp unit 20c will be abbreviated as "lamp unit 20", "light source 21", and "reflector 22" unless otherwise specified.

The radar unit 10 includes a circuit board 11, an antenna unit 12, and a signal processing IC 13.

The circuit board 11 is a board on which the antenna unit 12 and the signal processing IC 13 are mounted. As the circuit board 11, for example, a PCB (Printed Circuit Board) board, a semiconductor board having a signal processing IC 13 built-in, or the like is used.

From the viewpoint of miniaturization of the light device U, the circuit board 11 is arranged on the lower side of the reflector 22 so that the substrate surface extends along a substantially horizontal direction. Here, "along the substantially horizontal direction" includes a state in which the substrate surface is completely horizontal to the ground and a state in which the substrate surface is inclined with respect to the ground. The circuit board 11 may be arranged on the upper side of the reflector 22.

In other words, the radar unit 10 constitutes a horizontal millimeter-wave radar in which the circuit board 11 is horizontally arranged. As a result, the radar unit 10 is thinner than the lamp unit 20 in the ± Z direction.

The antenna portion 12 is arranged in the front region in the substrate surface of the circuit board 11, transmits an electromagnetic wave Ft toward the front (plus X direction), and reflects the electromagnetic wave reflected by the target and returned. Receives wave Fr.

The antenna unit 12 is, for example, an end-fire array antenna having a directivity in the direction toward the front end side of the circuit board 11. The end fire array antenna is configured to include a plurality of strip conductors arranged so as to be parallel in the longitudinal direction, and transmits and receives electromagnetic waves along the direction in which the plurality of strip conductors are arranged.

The antenna portion 12 is composed of, for example, six end fire array antennas (hereinafter, also referred to as “antenna elements”) 12a arranged in an array shape along the ± Y direction. The antenna unit 12 is configured as a phased array antenna by the six antenna elements 12a.

For example, the signal processing IC 13 sends a high-frequency drive signal to the antenna unit 12 to transmit an electromagnetic wave (for example, an electromagnetic wave in a millimeter wave band) from the antenna unit 12, or receives a reflected wave received by the antenna unit 12. Performs signal reception processing. Then, the reception process (for example, detection processing or frequency analysis processing) by the signal processing IC 13 detects the distance to the target (for example, a vehicle or a person), the direction in which the target exists, and the reflection intensity and speed of the target. Is done. Here, since the reception processing by the signal processing IC 13 is the same as the known configuration, detailed description here will be omitted.

The radar unit 10 according to the present embodiment is configured to be housed in the same housing 30 as the lamp unit 20, but is housed in a radar housing separate from the housing 30 and is housed in the housing 30. It may be configured to be attached to. Further, a resin separator or the like may be present between the radar unit 10 and the lamp unit 20.

Here, with reference to FIGS. 3 and 4, details of the arrangement position of the antenna portion 12 in the light device U according to the present embodiment will be described.

Normally, the reflected wave transmitted from the antenna unit 12 and reflected by the target and returned arrives not only at the arrangement position of the antenna unit 12 but also at various positions around the antenna unit 12. At this time, since the reflector 22 is composed of a metal member, the reflected wave arriving at the reflector 22 is re-reflected by the reflector 22 and heads in various directions (hereinafter, "multiple reflection component of the reflected wave"). Also called). In particular, the rereflection occurs at the front end portions 22aa, 22ba, 22ca of the reflector 22.

Here, if the reflecting surface of the reflector 22 and the substrate surface of the circuit board 11 on which the antenna portion 12 is arranged face each other, the multiple reflection components of the reflected wave are the reflector 22 and the antenna portion 12. Will cause a standing wave between. Then, the standing wave is superimposed on the reflected wave directly arriving from the target to the antenna unit 12, and the reception characteristic of the antenna unit 12 generates a blind spot region in which the target cannot be detected.

From this point of view, the antenna portion 12 according to the present embodiment is arranged on the front side (that is, the vehicle outer side) of the reflector 22. That is, the antenna portion 12 is arranged so as not to overlap the reflector 22 in a plan view.

As a result, the state in which the antenna unit 12 and the reflector 22 face each other is avoided, and the generation of a standing wave between the antenna unit 12 and the reflector 22 is suppressed.

Further, the array direction of the plurality of antenna elements 12a constituting the antenna portion 12 according to the present embodiment is a direction non-parallel to the extending direction of the front end portions 22aa, 22ba, 22ca of the reflector 22 in a plan view, and It is a direction that intersects the front (± Y direction). More preferably, the array direction of the antenna portion 12 is an angle of 9 degrees or more and 171 degrees or less with respect to the extending direction of the front end portions 22aa, 22ba, 22ca of the reflector 22 in a plan view (θ in FIG. 3). ) Is set to have.

As a result, the reflected wave arriving at the front end portions 22aa, 22ba, 22ca of the reflector 22 can be reflected so as to be directed in the plus Y direction or the minus Y direction, and the reflected wave can be reflected at the arrangement position of the antenna portion 12. It is possible to diffuse in the direction away from. In other words, this makes it possible to suppress the amount of the multiple reflection component of the reflected wave that arrives at the antenna unit 12.

Further, the positional relationship between the antenna portion 12 and the reflector 22 is such that the contour formed by the front end portions 22aa, 22ba, 22ca of the reflector 22 is convex with respect to the front in the region where the circuit board 11 and the reflector 22 overlap in a plan view. (In FIG. 3, the position of the edge portion 22bb of the reflector 22b) is the position where the contour formed by the front end portions 22aa, 22ba, 22ca of the reflector 22 is concave with respect to the front (in FIG. 3, the position of the reflector 22b). The center position of the element group of the plurality of antenna elements 12a (in FIG. 3, the vicinity of the third antenna element 12a from the leftmost antenna element 12a among the six antenna elements 12a) rather than the edge portions (positions of the edge portions 22cc and 22bc). It is set to be close to (one position).

As a result, when the reflected wave arriving at the front end portions 22aa, 22ba, 22ca of the reflector 22 is re-reflected at the front end portions 22aa, 22ba, 22ca of the reflector 22, the direction away from the arrangement position of the antenna portion 12 (here). Then, it diffuses in the plus Y direction or the minus Y direction). The reflected wave arriving at the front end portions 22aa, 22ba, 22ca of the reflector 22 is reflected so as to be directed in the plus Y direction or the minus Y direction, and the reflected wave is suppressed from arriving at the antenna portion 12.

[effect]
As described above, the vehicle-mounted light device U according to the present embodiment includes a light source 21 that emits light forward (first direction) and a lamp unit 20 including a reflector 22 that surrounds the periphery of the light source 21. , A circuit board 11 arranged so that the substrate surface extends horizontally on the lower side or the upper side of the lamp unit 20, and a region in the first direction arranged in the substrate surface of the circuit board 11. It includes a radar unit 10 including a plurality of antenna elements 12a that transmit and receive electromagnetic waves between them. The plurality of antenna elements 12a are arranged in an array shape on the front side of the reflector 22 in a plan view, and the array directions of the plurality of antenna elements 12a are in a direction intersecting the front in a plan view. Moreover, the direction is non-parallel to the extending direction of the front end portions 22aa, 22ba, 22ca of the reflector 22.

Therefore, according to the vehicle-mounted light device U according to the present embodiment, the reflector 22 and the circuit board 11 are caused by the electromagnetic wave (multiple reflection component of the reflected wave) re-reflected by the reflector 22 among the reflected waves from the target. It is possible to suppress a situation in which a standing wave is generated between the antenna portion 12 and the portion of the antenna portion 12. As a result, it is possible to suppress a situation in which the multiple reflection component of the reflected wave is superimposed on the reflected wave directly arriving from the target to the antenna unit 12 to deteriorate the reception characteristics of the antenna unit 12. That is, this makes it possible to suppress deterioration of radar performance due to multiple reflections.

(Modified example of the first embodiment)
The arrangement position of the antenna portion 12 can be variously changed according to the shape of the reflector 22 and the like.

FIG. 5A is a diagram showing the arrangement position of the antenna portion 12 in the light device U according to the first modification. FIG. 5B is a diagram showing the arrangement position of the antenna portion 12 in the light device U according to the second modification. Note that, in FIGS. 5A and 5B, only the lamp unit 20a is shown among the lamp units 20a, 20b, and 20c.

The light device U according to the first modification and the light device U according to the second modification have an embodiment in which the direction in which the radar unit 10 transmits / receives electromagnetic waves is set to be the same as the direction in which the lamp unit 20a irradiates light.

In such an embodiment, if the quadrangular pyramid-shaped reflector 22a described in the above embodiment is used, the array direction of the antenna portion 12 and the extending direction of the front end portion 22aa of the reflector 22a become parallel, and multiple reflections of the reflected wave are performed. Most of the components will reach the antenna unit 12.

From this point of view, in both the light device U according to the modification 1 and the light device U according to the modification 2, the extending direction of the front end portion 22aa of the reflector 22a is not parallel to the array direction of the antenna portion 12. As described above, the front end portion 22aa of the reflector 22a has a shape having a convex portion in the plus X direction.

Specifically, the front end portion 22aa of the reflector 22a according to the first modification has a triangular shape having an apex in the plus X direction in a plan view, and the array direction of the antenna portion 12 is a plan view of the reflector 22a. It is set to have an angle of 9 degrees or more (θ in FIG. 5A) with respect to the extending direction of the front end portion 22aa of the above.

Further, the front end portion 22aa of the reflector 22a according to the second modification has an arc shape convex in the plus X direction in a plan view.

Therefore, in both the light device U according to the first modification and the light device U according to the second modification, the reflected wave arriving at the front end portion 22aa of the reflector 22a is transmitted in the same manner as the light device U according to the first embodiment. , Can be reflected so as to be directed in the plus Y direction or the minus Y direction.

The same effect can be expected when the front end portion 22aa of the reflector 22a has a concave shape with respect to the plus X direction in a plan view. For example, the concave shape may be an arc shape or a saw shape, and may have a meander line shape or a slit at the end.

(Second embodiment)
Next, the configuration of the light device U according to the second embodiment will be described with reference to FIGS. 6 to 9. The light device U according to the present embodiment is different from the first embodiment in that it has a garnish material 40. The description of the configuration common to the first embodiment will be omitted.

FIG. 6 is an overall view showing an example of the configuration of the light device U according to the present embodiment. FIG. 7 is a side sectional view showing an example of the configuration of the light device U according to the present embodiment. FIG. 8 is a perspective view showing an example of the configuration of the garnish material 40 according to the present embodiment. FIG. 9 is a plan view of the radar unit 10 according to the present embodiment as viewed from above.

The garnish material 40 is a design member, and surrounds the outer periphery of the region through which the light emitted from the light source 21 passes on the front side of the lamp unit 20 and the radar unit 10 to form a part of the appearance of the vehicle. It is arranged in. The garnish material 40 is formed, for example, on the front surface of the vehicle body as a substantially rectangular frame member surrounding the outer periphery of the front cover 30a (see FIG. 8). In FIG. 6, the shape of the garnish material 40 is a shape that surrounds the entire circumference of the front cover 30a, but it may be a shape that partially surrounds the circumference of the front cover 30a.

Further, the garnish material 40 has a lens unit 40a that collects or diffuses (here, condenses) the electromagnetic waves in a region through which the electromagnetic waves transmitted and received by the antenna unit 12 pass (that is, a region in front of the antenna unit 12). .. The lens unit 40a typically narrows the beam of the electromagnetic wave transmitted by the antenna unit 12 and sends it forward, and at the same time, collects the reflected wave returned by the electromagnetic wave reflected by the target on the antenna unit 12.

As the material of the garnish material 40, for example, a resin material such as ABS resin or polypropylene resin is used. Further, the garnish material 40 is formed by, for example, resin molding (for example, injection molding), and the lens portion 40a is formed as a part of the shape of the garnish material 40. The garnish material 40 is made of an opaque material, unlike the front cover 30a, for example.

As the lens portion 40a, for example, a semi-cylindrical or parenchymal lens having a convex in the plus X direction and extending along the ± Y direction is used. Since the cross-sectional shape of the side surface of the semi-cylindrical or parenchymal lens portion 40a is substantially the same at any position in the ± Y direction (also referred to as a semi-cylindrical shape), ± Y It is preferable in that the refraction angles of the reflected waves arriving at different positions in different directions can be made the same. As a result, the situation in which the reflected wave arriving from the outside of the device is incident on the antenna portion 12 from various directions (for example, the plus Y direction side and the minus Y direction side with respect to the antenna portion 12) is suppressed. That is, this prevents deterioration of the accuracy of object detection (for example, deterioration of accuracy due to mutual interference or deterioration of accuracy due to a change in phase difference).

As described above, according to the in-vehicle light device U according to the present embodiment, the garnish material 40 is used as a cover member that protects the radar unit 10 and a dielectric lens that collects electromagnetic waves transmitted and received by the radar unit 10. Can be made to work.

As a result, it is possible to save space for arranging the vehicle-mounted light device U in the body of the vehicle and improve the radar performance of the radar unit 10 while maintaining the appearance design of the vehicle. Further, as a result, the radar unit 10 can transmit and receive electromagnetic waves without interposing other members (for example, bumpers) other than the garnish material 40. Therefore, other members arranged in front of the radar unit 10. It is possible to suppress deterioration of radar performance due to multiple reflections between the radar unit 10 and the radar unit 10.

(Other embodiments)
The present invention is not limited to the above embodiment, and various modifications can be considered.

In the above embodiment, the headlight is shown as an example of the application target of the light device U, but the light device U according to the present invention can also be applied to a tail light, a small light, or the like.

Further, in the above embodiment, as a preferable example of the positional relationship between the antenna unit 12 and the reflector 20, the case where the antenna unit 12 of the radar unit 10 is arranged in front of the reflector 20 has been described. However, the present invention is not limited to this aspect, and may be a case where the antenna portion 12 of the radar unit 10 is placed behind the tip portion of the reflector 20 in a plan view. Even in this case, the effect of suppressing the generation of multiple waves can be expected by arranging the tip of the reflector 20 and the antenna array direction of the radar unit 10 in a non-parallel relationship with each other.

Further, in the above embodiment, as an example of the light device U, an embodiment in which a horizontal radar unit 10 using an end fire array antenna is used is shown. However, the light device U according to the present invention is not limited to the horizontal radar unit 10, but is a vertical radar unit (that is, ± X) using a patch antenna or the like having a directional characteristic in the normal direction of the substrate surface. It can also be applied to radar units with short directional lengths).

Further, in the above embodiment, the end fire array antenna is shown as an example of the antenna element constituting the antenna unit 12. However, the antenna portion 12 may be formed by a conductor pattern formed on the circuit board 11, and in addition to the end fire array antenna, the Yagi array antenna, the Fermi antenna, the post wall waveguide antenna, or the post It may be configured by a wall horn antenna or the like.

Further, in the above embodiment, a semi-cylindrical lens is shown as an example of the shape of the lens portion 40a of the garnish material 40. However, as the shape of the lens portion 40a, a dome-shaped lens, a double-sided convex lens, a ball lens, a Fresnel lens, a combination thereof, a concave lens and a combination thereof, or the like may be applied. Further, as the lens unit 40a, a concave lens that diffuses electromagnetic waves transmitted from the antenna unit 12 may be applied.

Further, in the above embodiment, as an example of the light device U, an embodiment having three lamp units 20 is shown. However, the light device U according to the present invention may have a configuration having only one lamp unit 20.

Although specific examples of the present invention have been described in detail above, these are merely examples and do not limit the scope of claims. The techniques described in the claims include various modifications and modifications of the specific examples illustrated above.

According to the in-vehicle light device according to the present disclosure, it is possible to suppress deterioration of radar performance due to multiple reflections while integrally configuring the radar device and the lamp.

U In-vehicle light device 10 Radar unit 11 Circuit board 12 Antenna part 13 Signal processing IC
20a, 20b, 20c Lamp unit 21a, 21b, 21c Light source 22a, 22b, 22c Reflector 30 Housing 30a Front cover 40 Garnish material 40a Lens part

Claims (6)

It is a light device installed in a vehicle.
Is arranged a light source, and around the light source for emitting light, a lamp unit including a cylindrical Li Furekuta the front end portion you irradiation is open to the light in a predetermined region including the first direction,
Below or above the lighting equipment unit, a circuit board whose substrate surface is arranged in a substantially horizontal direction, and a circuit board which is arranged in the substrate surface of the circuit board and transmits electromagnetic waves in the second direction to the outside of the vehicle. A radar unit including an array antenna that receives reflected waves from an existing object from the second direction, and
With
The array antenna includes a plurality of antenna elements arranged outside the vehicle from the front end portion of the reflector.
The plurality of antenna elements are arranged in a fourth direction perpendicular to the second direction.
The front end portion of the reflector extends along the first direction and a third direction different from the second direction.
Said fourth direction in the substrate plane, in a direction intersecting the first direction, and, Ri non-parallel direction der to said third direction,
When the first direction and the second direction are the same direction, the front end portion of the reflector includes a convex portion in the first direction.
Light device. On the substrate surface, the fourth direction has an angle of 9 degrees or more and 171 degrees or less with respect to the third direction.
The light device according to claim 1. It is a light device installed in a vehicle.
A light source that emits light, and a lamp unit that includes a tubular reflector that is arranged around the light source and has a front end that irradiates a predetermined area including the first direction with the light.
Below or above the lighting equipment unit, a circuit board whose substrate surface is arranged in a substantially horizontal direction, and a circuit board which is arranged in the substrate surface of the circuit board and transmits electromagnetic waves in the second direction to the outside of the vehicle. A radar unit including an array antenna that receives reflected waves from an existing object from the second direction, and
With
The array antenna includes a plurality of antenna elements arranged outside the vehicle from the front end portion of the reflector.
The plurality of antenna elements are arranged in a fourth direction perpendicular to the second direction.
The front end portion of the reflector extends along the first direction and a third direction different from the second direction.
On the substrate surface, the fourth direction is a direction that intersects the first direction and is non-parallel to the third direction.
The array antenna is composed of an end fire array antenna .
La Ito apparatus. It is a light device installed in a vehicle.
A light source that emits light, and a lamp unit that includes a tubular reflector that is arranged around the light source and has a front end that irradiates a predetermined area including the first direction with the light.
Below or above the lighting equipment unit, a circuit board whose substrate surface is arranged in a substantially horizontal direction, and a circuit board which is arranged in the substrate surface of the circuit board and transmits electromagnetic waves in the second direction to the outside of the vehicle. A radar unit including an array antenna that receives reflected waves from an existing object from the second direction, and
A dielectric lens arranged in the second direction and transmitting the electromagnetic wave transmitted by the array antenna in the second direction, and a dielectric lens.
With
The array antenna includes a plurality of antenna elements arranged outside the vehicle from the front end portion of the reflector.
The plurality of antenna elements are arranged in a fourth direction perpendicular to the second direction.
The front end portion of the reflector extends along the first direction and a third direction different from the second direction.
On the substrate surface, the fourth direction is a direction that intersects the first direction and is non-parallel to the third direction.
La Ito apparatus. The dielectric lens is integrally formed with a garnish material disposed on at least a part of the outer periphery of a region through which the light passes in the lamp unit.
The light device according to claim 4. In the height direction of the vehicle, the radar unit is thinner than the lamp unit.
The light device according to claim 1.

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