JP2017134908A - Vehicular lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular lighting fixture capable of masking along an inclined cutoff line.SOLUTION: A vehicular lighting fixture 2 includes first, second excitation light sources 11, 12, and first, second light deflectors 13, 14. By laser beams radiated from the first, second excitation light sources 11, 12, elliptical laser spots are formed. The first excitation light source 11 is arranged so that the longer direction of the elliptical laser spots becomes the lateral direction. The second excitation light source 12 is arranged so that the longer direction of the elliptical laser spots inclines with respect to the horizontal direction and the vertical direction, and is along a cutoff line. The laser beam radiated from the first excitation light source 11 is scanned in a first scan range SR1. The laser beam radiated from the second excitation light source 12 is scanned in a second scan range SR2. When mask processing is performed by a laser spot unit in the second scan range SR2, masking is performed along the cutoff line.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a vehicular lamp including an optical deflector that scans light.

  As a vehicle lamp mounted on a vehicle, light from a light source such as a laser is scanned by an optical deflector such as MEMS (Micro Electro Mechanical Systems) to draw a two-dimensional image on a fluorescent screen, and this two-dimensional image is arranged. Some light patterns are projected forward.

  For example, in the illuminating device described in Patent Document 1, the irradiation area is changed by irradiating light from a light source, rotating a light deflection mirror, and scanning the light. In addition, the illumination device of Patent Document 1 includes a camera and an object detection unit that analyzes a moving image captured by the camera and detects an object in the moving image, and in which the object is detected by the object detection unit Is masked so that light from the light source is not irradiated.

  When traveling on a vehicle equipped with a vehicular lamp, a process for masking a predetermined area is performed so that a low beam is not irradiated far away from the opposite lane. At this time, the mask processing is performed so that the boundary line between the irradiation region and the mask region is along the cut-off line defined by the law. Generally, the cut-off line is a line inclined about 15 ° to 45 ° with respect to the horizontal direction (left-right direction).

JP 2014-017094 A

  In the illumination device of Patent Document 1, lighting and mask control are performed for each block in a predetermined region. The block has a rectangular shape parallel to the horizontal direction and the vertical direction, and cannot be masked along the inclined cut-off line.

  An object of the present invention is to provide a vehicular lamp that can be masked along an inclined cut-off line.

  The vehicular lamp of the present invention is a vehicular lamp that forms a predetermined light distribution pattern, and irradiates light that becomes an elliptical spot, and the longitudinal direction of the elliptical spot is in the horizontal and vertical directions. A first light source provided so as to be inclined, a first light deflector that scans light emitted from the first light source, and the predetermined light distribution pattern by light scanned by the first light deflector. And an optical system to be formed.

  According to the present invention, a predetermined light distribution pattern is formed by scanning light emitted from the first light source and whose longitudinal direction of the elliptical spot is inclined with respect to the horizontal direction and the vertical direction. You can set a cut-off line that matches your needs.

  In the present invention, light that becomes an elliptical spot is irradiated, and a second light source provided so that a longitudinal direction of the elliptical spot is parallel to a horizontal direction or a vertical direction, and irradiation from the second light source. A second optical deflector that scans the emitted light, and the optical system distributes the predetermined light distribution by the light scanned by the first optical deflector and the light scanned by the second optical deflector. It is preferable to form a pattern.

  According to this configuration, a range that does not need to be masked by the inclined cut-off line can be formed by light whose longitudinal direction of the elliptical spot is parallel to the horizontal direction or the vertical direction. Thereby, for example, the left and right ends and the lower end of the predetermined light distribution pattern can be formed by light whose longitudinal direction of the elliptical spot is parallel to the horizontal direction or the vertical direction.

  In the present invention, the light from the second light source is preferably such that the longitudinal direction of the elliptical spot is parallel to the horizontal direction.

  According to this configuration, the end lines such as the left and right ends and the lower end of the predetermined light distribution pattern can be made into straight lines.

  In the present invention, a control means for controlling driving of the first light source is provided, the first light source emits light for irradiating a low beam from a vehicle, and the control means uses an irradiation region and a mask at the time of light irradiation. It is preferable to control driving of the first light source so as to form a mask area to be turned off, and to set a boundary line between the irradiation area and the mask area based on information from the outside.

  According to this configuration, the boundary line between the irradiation region and the mask region can be formed based on information from the outside.

The perspective view which shows the vehicle lamp of this embodiment. Sectional drawing which shows a vehicle lamp. The block diagram which shows the structure of a vehicle lamp. The perspective view which shows an optical deflector. The figure explaining operation | movement of the piezoelectric actuator which has a meander structure. Schematic which shows the 1st, 2nd scanning range in the virtual vertical screen S. FIG. Schematic which shows the state which scanned the laser spot in the virtual vertical screen S in the 1st, 2nd scanning range. Schematic which shows the irradiation range in a straight road. Schematic which shows the irradiation range in the state which approached the curved part of the road. Schematic which shows the state which scanned the inclined laser spot in all the scanning ranges.

  As shown in FIG. 1, the vehicular lamp 2 includes a projection lens 3, a lens holder 4 that holds the projection lens 3, a main body cylinder 5 attached to the rear end of the lens holder 4, and a rear of the main body cylinder 5. And a bottom lid 6 for closing the opening on the side. In the present embodiment, the vehicular lamp 2 is used as a headlight of a vehicle, for example.

  As shown in FIG. 2, the vehicular lamp 2 scans the first and second excitation light sources 11 and 12 and the excitation light from the first excitation light source 11 two-dimensionally (horizontal direction and vertical direction). An optical deflector 13 and a second optical deflector 14 that two-dimensionally scans the excitation light from the second excitation light source 12 are provided. The driving of the first and second excitation light sources 11 and 12 and the first and second optical deflectors 13 and 14 is controlled by a control device 16 (see FIG. 3) described later in detail. The numbers of excitation light sources and optical deflectors can be changed as appropriate.

  The vehicular lamp 2 includes a phosphor 18 (projector) on which a two-dimensional image corresponding to a predetermined light distribution pattern is drawn by light scanned by the first and second light deflectors 13 and 14. The two-dimensional image drawn on the phosphor 18 is projected forward by the projection lens 3.

  The first and second excitation light sources 11 and 12, the first and second light deflectors 13 and 14, and the phosphor 18 are disposed inside the main body cylinder 5 and fixed by a fixing member (not shown). . In addition, you may provide the fin for heat radiation in the outer peripheral surface of the main body cylinder 5. FIG.

  The first excitation light source 11 collects light from the semiconductor light emitting element 11a and a semiconductor light emitting element 11a such as a laser diode (LD) that emits laser light in a blue region (for example, emission wavelength is 450 nm) as excitation light. And a condensing lens 11b for collimating light.

  Similar to the first excitation light source 11, the second excitation light source 12 includes a semiconductor light emitting element 12a and a condenser lens 12b. Each of the semiconductor light emitting elements 11a and 12a may be a semiconductor light emitting element such as a laser diode that emits laser light in the near ultraviolet region (for example, the emission wavelength is 405 nm). Each semiconductor light emitting element 11a, 12a may be an LED. Further, a laser irradiator that irradiates laser beams mixed in RGB may be used.

  The first excitation light source 11 and the second excitation light source 12 irradiate the laser beam toward the rotation center of the optical deflection mirror 20 of the first and second optical deflectors 13 and 14, which will be described in detail later.

  The phosphor 18 receives laser light two-dimensionally scanned by the first and second optical deflectors 13 and 14 and converts at least a part of the laser light into light having a different wavelength. Is formed in a rectangular plate shape (or layer shape). The phosphor 18 is disposed in the vicinity of the focal point of the projection lens 3. In FIG. 2, the thickness of the phosphor 18 is exaggerated.

  For example, when a laser diode (LD) that emits a blue laser beam is used as the semiconductor light emitting elements 11a and 12a of the first and second excitation light sources 11 and 12, the phosphor 18 may be a blue laser beam. Those that emit yellow light when excited are used. On the phosphor 18, a two-dimensional image corresponding to a predetermined light distribution pattern is drawn as a white image by laser light in a blue region scanned two-dimensionally by the first optical deflector 13. The two-dimensional image is drawn as a white image when the laser beam in the blue region is irradiated, the phosphor 18 emits light by the laser beam in the blue region and the laser beam in the blue region that is transmitted (passed) therethrough. This is due to the emission of white light (pseudo white light) by color mixing with (yellow light).

  On the other hand, when a laser diode (LD) that emits near-ultraviolet laser light is used as the semiconductor light emitting elements 11a and 12a, the phosphor 18 is excited by the near-ultraviolet laser light to emit red, green, and blue light. Those that emit light of three colors are used. On the phosphor 18, a two-dimensional image corresponding to a predetermined light distribution pattern is drawn as a white image by two-dimensional scanning by the first optical deflector 13 and laser light in the near ultraviolet region. The two-dimensional image is drawn as a white image when the near-ultraviolet laser light is irradiated, the phosphor 18 emits light by the near-ultraviolet laser light (light of three colors red, green, and blue). ) To emit white light (pseudo white light). Note that white light may be emitted by exciting a blue phosphor and a yellow phosphor with near-ultraviolet laser light.

  The projection lens 3 includes four lenses 3 a to 3 d, and each lens 3 a to 3 d is held by a lens holder 4. In each of the lenses 3a to 3d, the aberration (field curvature) is corrected so that the image surface is flat, and the chromatic aberration is corrected. In this case, the phosphor 18 has a flat plate shape and is arranged along the image plane (plane).

  The focal point of the projection lens 3 is located in the vicinity of the phosphor 18. The projection lens 3 can remove the influence of aberration on the predetermined light distribution pattern as compared with the case of using a single convex lens. In addition, since the phosphor 18 has a flat plate shape, the manufacture thereof becomes easier as compared with the case where the phosphor 18 has a curved surface shape. Furthermore, since the phosphor 18 has a flat plate shape, a two-dimensional image can be easily drawn as compared with the case where the phosphor 18 has a curved surface shape.

  The projection lens 3 may be configured as a projection lens made up of a single aspherical lens whose aberration (field curvature) is not corrected so that the image plane is flat. In this case, the phosphor 18 has a curved shape corresponding to the curvature of field, and is arranged along the curvature of field.

  The projection lens 3 projects a two-dimensional image drawn on the phosphor 18 forward, and is disposed at a position of a virtual vertical screen S (approximately 25 m ahead of the vehicle lamp 2) facing the vehicle lamp 2. ) As a predetermined light distribution pattern, for example, a low beam light distribution pattern is formed.

  The first and second optical deflectors 13 and 14 scan the excitation light collected by the condenser lenses 11b and 12b of the first and second excitation light sources 11 and 12 in the horizontal direction and the vertical direction.

  An elliptical laser spot is formed on the virtual vertical screen S by the laser light emitted from the first excitation light source 11. The first excitation light source 11 is arranged so that the longitudinal direction of the elliptical laser spot is horizontal (parallel to the horizontal direction) (see FIG. 6A). Note that the laser beam may be irradiated so that the longitudinal direction of the elliptical shape of the laser spot is vertical (parallel to the vertical direction).

  An elliptical laser spot is formed on the virtual vertical screen S by the laser light emitted from the second excitation light source 12. The second excitation light source 12 is arranged so that the longitudinal direction of the elliptical laser spot is inclined with respect to the horizontal direction and the vertical direction (see FIG. 6B). In the present embodiment, the laser spot from the second excitation light source 12 has an elliptical longitudinal direction inclined by 45 ° with respect to the horizontal direction. The inclination angle can be changed as appropriate, and is preferably adjusted to a cut-off line angle defined by laws and regulations, and is about 15 ° to 45 °.

  As shown in FIG. 3, the first and second excitation light sources 11 and 12 and the first and second optical deflectors 13 and 14 are connected to a control device 16 that comprehensively controls the vehicular lamp 2, and the control device The drive is controlled by 16.

  The first and second optical deflectors 13 and 14 are, for example, MEMS scanners. The driving method of the optical polarizer is roughly classified into a piezoelectric method, an electrostatic method, and an electromagnetic method, and any method may be used. In the present embodiment, a piezoelectric optical polarizer will be described as a representative.

  As shown in FIG. 4A, the first optical deflector 13 is a biaxial optical deflector, which is manufactured by using a semiconductor process or MEMS (Micro Electro Mechanical Systems) technology, and receives light incident from a certain direction. The light is reflected by the light deflecting mirror 20 as a rotating micromirror and emitted as reflected light (laser light).

  The first optical deflector 13 includes a first support portion 21. The first support portion 21 includes an optical deflection mirror 20, semi-annular piezoelectric actuators 23a and 23b, torsion bars 24a and 24b, and the like. Laser light from the first and second excitation light sources 11 and 12 is reflected by the light deflection mirror 20, and the reflected light (laser light) scans on the virtual vertical screen S through the phosphor 18 and the projection lens 3.

  At this time, the control device 16 transmits a control signal to the first optical deflector 13 and the first excitation light source 11. The semi-annular piezoelectric actuators 23a and 23b of the first optical deflector 13 are driven by the control signal, and the torsion bars 24a and 24b coupled to the semi-annular piezoelectric actuators 23a and 23b are twisted to rotate the light deflection mirror 20. . Further, on and off of the laser light and the luminance are controlled in the first and second excitation light sources 11 and 12 by the control signal.

  In the present embodiment, in the two-axis orthogonal coordinate system, a horizontal rotation axis passing through the center of the circular light deflection mirror 20 is defined as an X axis, and a vertical rotation axis is defined as a Y axis. In FIG. 4, the X-axis is the left-right direction, the Y-axis is the up-down direction, and the thickness direction of the light deflection mirror 20 is the front-rear direction.

  The first optical deflector 13 includes a rectangular annular second support portion 22, and the first support portion 21 is disposed at the center of the second support portion 22. Further, bellows-shaped piezoelectric actuators 31 a and 31 b are arranged symmetrically with respect to the Y axis passing through the center of the first support portion 21, and are coupled to the lower end of the side portion of the first support portion 21 and the second support portion 22. doing. In FIG. 3, the first and second support portions 21 and 22 and the piezoelectric actuators 31a and 31b are collectively referred to as MEMS.

  The piezoelectric actuators 31a and 31b are formed in a meander structure in which a plurality of cantilevers are arranged in the direction in which the longitudinal directions are adjacent to each other and folded at the end portions in the vertical direction and coupled in series. Although details will be described later, by driving the piezoelectric actuators 31a and 31b by the control signal, the first support portion 21 reciprocally rotates in the horizontal direction, that is, around the X axis passing through the center of the light deflection mirror 20 in the drawing. To do.

  Further, as described above, by driving the semi-annular piezoelectric actuators 23a and 23b, the light deflection mirror 20 coincides with the axes of the torsion bars 24a and 24b, and rotates around the Y axis passing through the center of the light deflection mirror 20 in the figure. Reciprocally rotate.

  As a result, when the first optical deflector 13 reflects the laser beam by the optical deflection mirror 20, the first optical deflector 13 emits the light to the front of the first optical deflector 13, and further in two directions, the X-axis direction and the Y-axis direction. Can be scanned.

  Below the second support portion 22, electrode pads 32 a to 32 e (hereinafter referred to as electrode pads 32) and electrode pads 33 a to 33 e (hereinafter referred to as electrode pads 33) are disposed. The electrode pads 32 and 33 are electrically connected so that a drive voltage can be applied to each electrode of the piezoelectric actuators 31a and 31b and the semi-annular piezoelectric actuators 23a and 23b.

  In addition, even if there is no part of the piezoelectric actuators 31a and 31b, it can function as an optical deflector. In this case, the portion of the first support portion 21 serves as a support, and the uniaxial optical deflector in which the light deflection mirror 20 reciprocates around the Y axis is configured.

  FIG. 4B is a diagram showing the second optical deflector 14. The second optical deflector 14 is configured in the same manner as the first optical deflector 13, and a detailed description thereof is omitted. In FIG. 4A and FIG. 4B, the elliptical dotted line of the light deflection mirror 20 indicates the laser spot output from the first and second excitation light sources 11 and 12. The second optical deflector 14 differs from the first optical deflector 13 only in the direction of the laser spot on the optical deflection mirror 20. In the first optical deflector 13, the longitudinal direction of the laser spot is along the X axis, but in the second optical deflector 14, the laser spot is inclined with respect to the X axis and the Y axis.

  Next, the operation will be described with reference to FIG. 5 using the piezoelectric actuator 31a as an example. As described above, the first optical deflector 13 allows the optical deflection mirror 20 to reciprocate around the X-axis by operating the piezoelectric actuators 31a and 31b.

  FIG. 5A is a diagram in which the piezoelectric actuator 31a disposed on the left side is cut out when the first optical deflector 13 is viewed from the front side. The piezoelectric actuator 31a has a shape in which four piezoelectric cantilevers are arranged, and the piezoelectric cantilevers 31a (1), 31a (2), 31a (3), and 31a (4) are arranged in order from the side away from the first support portion 21. is there.

  For example, in the piezoelectric actuator 31a, a first voltage is applied to the odd-numbered piezoelectric cantilevers 31a (1) and 31a (3). A second voltage having a phase opposite to that of the first voltage is applied to the even-numbered piezoelectric cantilevers 31a (2) and 31a (4).

  By applying the voltage in this way, as shown in FIG. 5B, the odd-numbered piezoelectric cantilevers 31a (1) and 31a (3) are bent and displaced upward in FIG. 5B, and the even-numbered piezoelectric cantilevers 31a ( 2), 31a (4) can be bent and displaced downward in FIG. 5B.

  The piezoelectric actuator 31b is composed of four piezoelectric cantilevers as in the piezoelectric actuator 31a, and is the first, second, third, and fourth piezoelectric cantilevers in order from the one closer to the first support portion 21. The two piezoelectric cantilevers can be bent and displaced rearward in FIG. 4, and the even two piezoelectric cantilevers can be bent and displaced forward in FIG.

  4 from the upper side (torsion bar 24a side) of the light deflection mirror 70 in FIG. 4 to the front side in FIG. 4 (upper side is FIG. 5). The light deflection mirror 20 can be displaced so as to move in the U direction.

  Also, by applying a second voltage to the odd-numbered piezoelectric cantilevers 31a (1) and 31a (3) and applying a first voltage to the even-numbered piezoelectric cantilevers 31a (2) and 31a (4). 4 so that the upper side (torsion bar 24a side) in FIG. 4 of the light deflection mirror 20 is the front side in FIG. 4 from the lower side (torsion bar 24b side) of the light deflection mirror 20 in FIG. Can be displaced. By continuously performing these controls, the light deflection mirror 20 can be rotated (swinged) about the X axis.

  As a method of applying the first voltage and the second voltage, there is a method of applying an antiphase voltage changing on a sine curve or a comb tooth to an odd-numbered piezoelectric cantilever and an even-numbered piezoelectric cantilever. Further, the present invention is not limited to the case where the cantilever is alternately bent in the vertical direction, and any one of the upper and lower bending and the state where the cantilever is not bent may be alternately repeated.

  When the vehicular lamp 2 is driven to form a low beam light distribution pattern on the virtual vertical screen S, the control device 16 firstly includes the first and second excitation light sources 11 and 12 and the first and second light deflections. A control signal is transmitted to the devices 13 and 14.

  In response to the control signal, laser light is output from the first and second excitation light sources 11 and 12, and the first and second optical deflectors 13 and 14 are driven so that the respective optical deflection mirrors 20 are rotated around the X axis and It rotates around the Y axis.

  As shown in FIG. 2, the laser light output from the first excitation light source 11 is incident on the rotation center of the light deflection mirror 20 of the first optical deflector 13, and is rotated in the horizontal direction by the rotating light deflection mirror 20. Scans vertically.

  The laser light output from the second excitation light source 12 enters the rotation center of the light deflection mirror 20 of the second optical deflector 14 and is scanned in the horizontal and vertical directions by the rotating light deflection mirror 20.

  As shown in FIG. 6A, the laser light emitted from the first excitation light source 11 is scanned in the first scanning range SR1 of the virtual vertical screen S via the first optical deflector 13, the phosphor 18 and the projection lens 3. (A two-dimensional image is projected). In the first scanning range SR1, the upper center portion is a mask region that is not irradiated with light. In order to form this mask region, the control device 16 performs control so as not to irradiate light from the first excitation light source 11 when scanning the mask region. The control signal also includes information on the mask area. When the first excitation light source 11 is driven by the control signal, the laser light emitted from the first excitation light source 11 is scanned in the first scanning range SR1.

  As shown in FIG. 6B, the laser light emitted from the second excitation light source 12 passes through the second optical deflector 14, the phosphor 18 and the projection lens 3, and the second scanning range SR2 at the upper center of the virtual vertical screen S. Is scanned. In addition, each range of 1st scanning range SR1 and 2nd scanning range SR2 can be changed suitably. 6 to 9, the size of the laser spot is exaggerated.

  As shown in FIG. 7, the light combining the laser beam scanned in the first scanning range SR1 by the first optical deflector 13 and the laser beam scanned in the second scanning range SR2 by the second optical deflector 14. However, irradiation from the vehicular lamp 2 is possible.

  When the vehicle lamp 2 is mounted and driven on the vehicle, the control device 16 acquires road information based on a camera (not shown) mounted on the vehicle, a handle operation amount of the vehicle, and the like, and the acquired road information. To determine whether or not the vehicle is approaching the curve. And when it determines with the control apparatus 16 not having reached the curve (it determines with the vehicle drive | working the straight road), as shown in FIG. 8, so that a low beam may not be irradiated to the far lane of an oncoming lane The driving of the first and second excitation light sources 11 and 12 is controlled. In this case, the control device 16 masks a part of the first scanning range SR1 and a part of the second scanning range SR2. By this mask process, a cutoff line (boundary line between the irradiation region and the mask region) inclined with respect to the horizontal direction and the vertical direction is formed in the second scanning range SR2. In FIG. 8 and FIG. 9, the portion where the laser spot is not drawn is a mask region. 8 and 9 show the irradiation range during low beam irradiation.

  The second scanning range SR2 has a direction along the inclined cut-off line as compared with the case where mask processing is performed along the inclined cut-off line with respect to the laser light irradiated from the first excitation light source 11 and the laser spot is lateral. Since the laser beam of the laser spot having the longitudinal direction is scanned, the cut-off line can be made clearer.

  In addition, since the irradiation region that forms the boundary line with the lower end of the mask region is formed by laser light with the laser spot facing sideways (laser light from the first excitation light source 11), the end line of the irradiation range is clean. It becomes a straight line. In addition, without acquiring road information, a predetermined part of the first scanning range SR1 and a predetermined part of the second scanning range SR2 are masked to form an inclined cut-off line. It may be.

  When it is determined that the control device 16 is approaching the curve based on the road information, as shown in FIG. 9, the first and second excitation light sources 11 and 12 are irradiated so as to emit a low beam in accordance with the curve. Control the drive. In this case, the control device 16 performs control so that the cut-off line is shifted to the right in the second scanning range SR2 when traveling on a straight road. This is control when the vehicle reaches the right curve. When the vehicle reaches the left curve, the cut-off line is shifted to the left in the second scanning range SR2 when traveling on a straight road.

  In addition, as shown in FIG. 10, you may make it scan the whole scanning range with the laser beam output from the 2nd excitation light source 12. FIG. In this case, the first excitation light source 11 and the first optical deflector 13 are not necessary. In this embodiment, by performing the same mask processing as in the above embodiment, a cut-off line that is inclined with respect to the horizontal direction and the vertical direction can be easily formed in all scanning ranges.

  In the above embodiment, an excitation light source is used, but a light source that emits the color of the light source itself may be used. In this case, the phosphor (projector) is not necessary, and the light from the light source is irradiated as it is. Further, a light transmissive diffusion plate may be used instead of the phosphor. Furthermore, the light source may irradiate a single light beam, for example, the light may be guided by a fiber. The light guided to the fiber may be white light mixed with RGB.

  Moreover, in the said embodiment, although the rectangular-shaped fluorescent substance is used, it is not restricted to this, For example, an elliptical shape may be sufficient.

DESCRIPTION OF SYMBOLS 2 ... Vehicle lamp, 3 ... Projection lens, 4 ... Lens holder, 5 ... Main body cylinder, 6 ... Bottom cover, 11, 12 ... 1st, 2nd excitation light source, 11a, 12a ... Semiconductor light emitting element, 11b, 12b ... Condensing lenses 13, 14 ... first and second light deflectors, 16 ... phosphor, 18 ... control device, 20 ... light deflection mirror, 21,22 ... first and second support portions, 23a, 23b, half Annular piezoelectric actuator, 24a, 24b ... Torsion bar, 31a, 31b ... Piezoelectric actuator, 32a-32e ... Electrode pad, 33a-33e ... Electrode pad

Claims (4)

A vehicular lamp that forms a predetermined light distribution pattern,
Irradiating light that becomes an elliptical spot, and a first light source provided so that a longitudinal direction of the elliptical spot is inclined with respect to a horizontal direction and a vertical direction;
A first optical deflector that scans light emitted from the first light source;
An optical system for forming the predetermined light distribution pattern by the light scanned by the first optical deflector;
A vehicular lamp characterized by comprising: The vehicular lamp according to claim 1,
Irradiating light that becomes an elliptical spot, and a second light source provided so that a longitudinal direction of the elliptical spot is parallel to a horizontal direction or a vertical direction;
A second optical deflector that scans the light emitted from the second light source,
The vehicular lamp, wherein the optical system forms the predetermined light distribution pattern by light scanned by the first light deflector and light scanned by the second light deflector. The vehicular lamp according to claim 2,
The vehicular lamp characterized in that the light from the second light source has a longitudinal direction of the elliptical spot parallel to the horizontal direction. The vehicular lamp according to any one of claims 1 to 3,
Control means for controlling the driving of the first light source;
The first light source emits light for irradiating a low beam from a vehicle,
The control means controls the driving of the first light source so as to form an irradiation area and a mask area that is extinguished by a mask during light irradiation, and based on information from the outside, the irradiation area and the mask area A vehicle lamp characterized in that a boundary line is set.