KR20180078019A - Automotive lamp - Google Patents

Abstract

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a lamp for a vehicle, and more particularly, to a lamp for a vehicle that forms a high-luminance region using laser light by a laser diode.
The lamp for a vehicle according to the embodiment of the present invention includes a main light source for emitting main light, an auxiliary light source for emitting auxiliary light, an auxiliary light source for changing a posture to block a part of the main light, And a reflector for reflecting the incident light to guide the main light and the auxiliary light guided by the shield part and guiding the incident light to the lens part, wherein the reflector The main light source is disposed at a first focus, and the shield portion has a front end adjacent to a second focus of the reflector and extending rearward from the front end.

Description

[0001]

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a lamp for a vehicle, and more particularly, to a lamp for a vehicle that forms a high-luminance region using laser light by a laser diode.

2. Description of the Related Art [0002] Generally, a vehicle is equipped with various types of vehicle lamps having a lighting function for easily identifying an object located in the vicinity of the vehicle at nighttime, and a signal function for notifying other vehicles or road users of the running state of the vehicle.

For example, head lamps and fog lamps are mainly aimed at lighting functions, while turn signal lamps, tail lamps, brake lamps, side markers and the like are mainly used for signal functions. In addition, such vehicle lamps are prescribed by laws and regulations on installation standards and specifications so that each function can be fully utilized.

Meanwhile, when a light emitting diode (Light Emitting Diode) or a bulb is used as a light source of a vehicle lamp, when the light source is used, the light is diffused and illuminated, have.

Therefore, the emergence of an invention which provides a sufficient luminance to a point of interest of the driver is required.

Japanese Unexamined Patent Application, First Publication No. H11-64323 (Apr. 28, 2011)

A problem to be solved by the present invention is to form a high illuminance region by using laser light by a laser diode.

The objects of the present invention are not limited to the above-mentioned problems, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

The lamp for a vehicle according to the embodiment of the present invention includes a main light source for emitting main light, an auxiliary light source for emitting auxiliary light, an auxiliary light source for changing a posture to block a part of the main light, And a reflector for reflecting the incident light to guide the main light and the auxiliary light guided by the shield part and guiding the incident light to the lens part, wherein the reflector The main light source is disposed at a first focus, and the shield portion has a front end adjacent to a second focus of the reflector and extending rearward from the front end.

The details of other embodiments are included in the detailed description and drawings.

According to the vehicle lamp according to the embodiment of the present invention as described above, since the high-illuminance region is formed using the laser light by the laser diode, there is an advantage of providing sufficient luminance for the driver's point of interest.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a view illustrating a lamp for a vehicle according to an embodiment of the present invention.
2 is a view illustrating a shield unit according to an embodiment of the present invention.
3 is a view illustrating a shield unit with a reflection plate according to an embodiment of the present invention.
4 is a view showing a change in attitude of a shield portion with a reflection plate according to an embodiment of the present invention.
5 is a view showing an optical path in the case where a low beam pattern is formed according to an embodiment of the present invention.
6 is a diagram illustrating an auxiliary light path in the case where a low beam pattern is formed according to an embodiment of the present invention.
7 is a view illustrating a low beam pattern according to an embodiment of the present invention.
FIG. 8 is a view illustrating formation of a high-contrast region in a low beam pattern according to an embodiment of the present invention.
9 is a view showing an optical path in the case where a high beam pattern is formed according to an embodiment of the present invention.
10 is a view illustrating an auxiliary light path in the case where a high beam pattern is formed according to an embodiment of the present invention.
11 is a diagram illustrating a high beam pattern according to an embodiment of the present invention.
FIG. 12 is a view showing a high contrast region formed on a high beam pattern according to an embodiment of the present invention.
13 is a view illustrating a shield portion in which a phosphor according to an embodiment of the present invention is disposed.
FIG. 14 and FIG. 15 are diagrams showing auxiliary light paths by shield portions in which phosphors are arranged according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

FIG. 1 is a view illustrating a lamp for a vehicle according to an embodiment of the present invention. FIG. 2 is a view of a shield unit according to an embodiment of the present invention, and FIG. 3 is a view illustrating a shield unit having a reflector according to an embodiment of the present invention. And FIG. 4 is a view showing a change of the posture of the shield portion according to the embodiment of the present invention.

1 to 4, a vehicle lamp 10 according to an embodiment of the present invention includes main light sources 110 and 120, an auxiliary light source 200, reflectors 310 and 320, a shield unit 400, (500).

The main light sources 110 and 120 serve to irradiate the main light. Various types of light sources such as a bulb, a light emitting diode (LED), or a high intensity discharge (HID) bulb may be used as the main light sources 110 and 120 according to an embodiment of the present invention.

The reflectors 310 and 320 serve to reflect the incident light. Specifically, the reflectors 310 and 320 may reflect the incident light and guide the light to the front lens unit 500. To this end, the reflectors 310 and 320 may have an elliptical curved shape or a free curved shape with at least one side being open.

A reflective layer (not shown) may be provided on the inner surfaces of the reflectors 310 and 320, such as aluminum or chrome, formed by vapor deposition or coating with a material having a high reflectance. The reflective layer may reflect at least a part of the main light generated from the main light sources 110 and 120 located near the focus or focus of the reflectors 310 and 320 forward.

Here, the reflectors 310 and 320 reflect the incident light forward, which means that the light is reflected from the vehicle lamp 10 in the direction in which the light is irradiated. However, the meaning of the front direction may vary depending on the use, installation position, installation direction, etc. of the lamp 10 for a vehicle of the present invention.

In the present invention, the main light sources 110 and 120 may include a first main light source 110 and a second main light source 120. The first main light source 110 may irradiate the first main light in the upward direction and the second main light source 120 may irradiate the second main light in the downward direction.

Also, in the present invention, the reflectors 310 and 320 may include a first reflector 310 and a second reflector 320. The first reflector 310 reflects the first main light to guide the first main light to the lens unit 500 and the second reflector 320 reflects the second main light to guide the second main light to the lens unit 500.

The first main light may form a low beam pattern, and the second main light may form a high beam pattern. To this end, a shield unit 400 for selectively shielding the light reflected by the reflectors 310 and 320 may be provided.

The shield part 400 can be changed in posture so as to block or pass a part of the main light. The main light sources 110 and 120 are disposed at the first focus of the reflectors 310 and 320 and the shield portion 400 is disposed such that the front end thereof is adjacent to the second focus of the reflectors 310 and 320 and extends rearward at the front end thereof A part of the main light may be cut off or passed as it is according to the attitude of the shield part 400. [

Referring to FIG. 2, the shield portion 400 includes a shield body 410 and a support portion 420.

The shield body 410 selectively shields incident light. That is, some of the light incident from the reflectors 310 and 320 may be blocked by the shield body 410 and may not be transmitted to the lens unit 500. The shape of the light incident on the land portion is changed by the shield body 410 so that a certain predetermined beam pattern can be formed.

In addition, the shield body 410 serves to guide the auxiliary light emitted by the auxiliary light source 200 in a specific direction. The shield body 410 has an upper surface F parallel to the optical axis of the auxiliary light irradiated by the auxiliary light source 200 and a rear end portion of the shield body 410 has a predetermined angle A plurality of inclined surfaces S1 and S2 may be provided. Here, the angles a and b between each of the plurality of slopes S1 and S2 and the top surface F may be different from each other.

A reflector for reflecting the auxiliary light irradiated by the auxiliary light source 200 may be disposed on each of the plurality of slopes S1 and S2 or a phosphor for converting the auxiliary light irradiated by the auxiliary light source 200 into fluorescence may be disposed have. Hereinafter, a description will be made mainly on the case where the reflection plates are disposed on the plurality of slopes S1 and S2.

The support portion 420 serves to change the position and posture of the shield body 410. The support portion 420 may rotate about the rotation axis 440. The position and attitude of the shield body 410 coupled to the support portion 420 may be changed as the support portion 420 rotates.

However, according to some embodiments of the present invention, the position and attitude of the shield body 410 may be changed not only by the rotational movement of the support portion 420 but also by the motion such as linear motion and translational motion. Hereinafter, the position and posture of the shield body 410 are changed in accordance with the rotation of the support part 420. FIG.

Referring to FIGS. 3 and 4, a first reflector 431 and a second reflector 432 may be disposed on the plurality of inclined surfaces S1 and S2 provided on the shield body 410. FIG. The first reflector 431 and the second reflector 432 reflect the incident auxiliary light.

The auxiliary light may be reflected by one of the first reflector 431 and the second reflector 432. The reflector reflecting the auxiliary light can be determined by the position and posture of the shield body 410.

The position and posture of the shield body 410 may be changed as the support portion 420 rotates about the rotation axis 440. [ 3, the auxiliary light is reflected by the first reflecting plate 431, and when the shield portion 400 has the attitude as shown in FIG. 4, the auxiliary light is reflected by the first reflecting plate 431, and when the shield portion 400 has the attitude as shown in FIG. May be reflected by the second reflecting plate 432. [

In addition, as the position and posture of the shield body 410 are changed, the light shielding pattern may be changed. For example, a low beam pattern can be formed or a high beam pattern can be formed according to the position and posture of the shield body 410. [

3 shows the posture of the shield part 400 for forming the low beam pattern, and FIG. 4 shows the posture of the shield part 400 for forming the high beam pattern. Hereinafter, the attitude of the shield portion 400 for forming the low beam pattern is referred to as a first attitude, and the attitude of the shield portion 400 for forming a high beam pattern is referred to as a second attitude.

The auxiliary light source 200 serves to irradiate the auxiliary light. In the present invention, the auxiliary light includes laser light. That is, the auxiliary light source 200 may be a laser diode for generating a laser beam. However, the auxiliary light source 200 of the present invention is not limited to the laser diode, and various light sources such as an LED may be used.

However, in the present invention, the auxiliary light source 200 is preferably capable of irradiating light having a relatively high straightness. In the present invention, the auxiliary light forms a high contrast pattern that reinforces a specific area of a low beam pattern or a high beam pattern, and the auxiliary light may have a relatively high linearity so that light is concentrated in the corresponding area.

A condenser lens 210 may be provided on the light irradiation path of the auxiliary light. The condenser lens 210 serves to focus the auxiliary light emitted from the auxiliary light source 200. [ As the auxiliary light is concentrated, the light transmitted through the condenser lens 210 can be irradiated at a longer distance in a state in which optical loss is reduced.

The auxiliary light irradiated by the auxiliary light source 200 may be transmitted to the shield unit 400. [ The shield part 400 can guide the auxiliary light in different directions according to the changed attitude. For example, when the first main light source 110 is turned on, the shield unit 400 guides the auxiliary light emitted by the auxiliary light source 200 to the first reflector 310, The shield unit 400 may guide the auxiliary light irradiated by the auxiliary light source 200 to the second reflector 320. In this case,

As described above, the shield body 410 may include a first reflector 431 and a second reflector 432. The first reflector 431 reflects the auxiliary light to guide the first reflector 310 to the second reflector 432 and the second reflector 432 reflects the auxiliary light to guide the second reflector 320 to the second reflector.

When the shield portion 400 is in the first posture, the auxiliary light irradiated by the auxiliary light source 200 is incident on the first reflector 431, and the first reflector 431 reflects the incident auxiliary light, (310). Similarly, when the shield portion 400 is in the second posture, the auxiliary light emitted by the auxiliary light source 200 is incident on the second reflecting plate 432, and the second reflecting plate 432 reflects the incident auxiliary light And can be guided by the second reflector 320.

When a laser diode is used as the auxiliary light source 200, the auxiliary light source 200 can generate laser light in a blue region having a peak wavelength in a wavelength range of 440 nm to 490 nm. Since the blue laser light is irradiated with a high energy concentration, the phosphors 610 and 620 may be used to disperse the blue laser light.

The auxiliary light source 200 may be disposed between the first focus and the second focus of the reflectors 310 and 320 to irradiate the auxiliary light toward the shield part 400. [ Thus, interference between the main light and the auxiliary light of the main light sources 110 and 120 can be prevented.

The phosphors 610 and 620 serve to convert the auxiliary light irradiated by the auxiliary light source 200 into fluorescence. The phosphors 610 and 620 may be transmissive phosphors. For example, the phosphors 610 and 620 can transmit blue laser light to generate fluorescence. The fluorescence transmitted by the phosphors 610 and 620 may be white light having a peak wavelength in the wavelength range of 560 nm to 590 nm. For this, the phosphors 610 and 620 may be yellow phosphors.

However, in the embodiment of the present invention, when the blue laser light is irradiated by the auxiliary light source 200, the yellow phosphors are used as the phosphors 610 and 620 are merely examples for helping understanding of the present invention. The phosphors 610 and 620 of the present invention are not limited thereto and can be realized by a combination of blue, green and red phosphors depending on the color region of the auxiliary light source 200.

When the reflection plates 431 and 432 are disposed on the inclined surfaces S1 and S2 of the shield unit 400, the phosphors 610 and 620 may be spaced apart from the shield unit 400. The auxiliary light reflected by the reflection plates 431 and 432 may be incident on the phosphor.

The phosphors 610 and 620 may include a first phosphor 610 and a second phosphor 620. The first phosphor 610 converts the auxiliary light incident on the first reflector 310 into fluorescence and the second phosphor 620 converts the auxiliary light incident on the second reflector 320 into fluorescence. The first phosphor 610 and the second phosphor 620 are provided on the optical path of the auxiliary light formed in accordance with the posture of the shield part 400 so that the incident auxiliary light can be converted into fluorescence.

The fluorescence converted by the phosphors 610 and 620 may be transmitted to the first reflector 310 or the second reflector 320 and reflected therefrom.

The lens unit 500 transmits the main light passing through the shield unit 400 and the auxiliary light guided by the shield unit 400.

The main light generated by the main light sources 110 and 120 is reflected by the reflectors 310 and 320 and the reflected light passes through the shield part 400 and is transmitted through the lens part 500.

The auxiliary light generated by the auxiliary light source 200 may be guided by the shield unit 400 and transmitted to the reflectors 310 and 320 to be reflected. The auxiliary light reflected by the reflectors 310 and 320 can be transmitted through the lens unit 500 by being irradiated forward.

Although the above description has been made with the fluorescent lamps 610 and 620 on the vehicle lamp 10, according to some embodiments of the present invention, the lamp 10 for a vehicle may not include the fluorescent materials 610 and 620. For example, if the auxiliary light generated by the auxiliary light source 200 has enough energy that it does not damage the human body, and if it has appropriate straightness and diffusion to form a high contrast pattern, (500).

When the phosphors 610 and 620 are provided, the auxiliary light is converted into fluorescence and transmitted to the reflectors 310 and 320, and the lens unit 500 can transmit fluorescence.

FIG. 5 is a view showing an optical path when a low beam pattern is formed according to an embodiment of the present invention, FIG. 6 is a view illustrating an auxiliary optical path when a low beam pattern is formed according to an embodiment of the present invention FIG. 7 is a view showing a low beam pattern according to an embodiment of the present invention, and FIG. 8 is a view showing a high-intensity region formed in a low beam pattern according to an embodiment of the present invention.

Referring to FIGS. 5 and 7, the first main light ML1 generated by the first main light source 110 may be reflected by the first reflector 310 and transmitted to the lens unit 500. FIG.

Some of the light reflected by the first reflector 310 may be prevented from being transmitted to the lens unit 500 by being blocked by the shield unit 400. [ The light transmitted through the lens unit 500 can form the low beam pattern P1 shown in FIG.

The shield part 400 having the first attitude according to the embodiment of the present invention is disposed in front of the first main light source 110 and includes a part of the first main light ML1 generated from the first main light source 110 Off line CL of the low beam pattern P1. The low beam pattern P1 may have different heights from each other with respect to the line parallel to the optical axis Ax of the lens unit 500 according to the shape of the cutoff line CL.

6 and 8, the auxiliary light EL generated by the auxiliary light source 200 is reflected by the first reflection plate 431 disposed in the shield portion 400 and is transmitted to the first phosphor 610 .

The first phosphor 610 can convert the incident auxiliary light EL into the fluorescent light FL1 and the fluorescent light FL1 can be reflected by the first reflector 310 and transmitted to the lens unit 500 .

The irradiation range of the fluorescent light FL1 transmitted through the lens unit 500 in the present invention may be smaller than the irradiation range of the first main light ML1 transmitted through the lens unit 500. [ That is, the size of the beam pattern due to the fluorescent light FL1 can be smaller than that of the low beam pattern P1 by the first main light ML1.

As shown in FIG. 8, the beam pattern by the fluorescence FL1 may be a high illuminance pattern HP1 mapped to a specific area of the low beam pattern P1.

8 shows that the high contrast pattern HP1 is formed in the vicinity of the cutoff line CL but the high contrast pattern HP1 is formed depending on the reflection angle of the auxiliary light EL reflected by the shield portion 400, May be different.

The high contrast pattern HP1 having a relatively high illuminance is formed in a specific area of the low beam pattern P1 so that the driver can secure an improved view of the area.

FIG. 9 is a view showing an optical path when a high beam pattern is formed according to an embodiment of the present invention, FIG. 10 is a view illustrating an auxiliary light path in the case where a high beam pattern is formed according to an embodiment of the present invention FIG. 11 is a view showing a high beam pattern according to an embodiment of the present invention, and FIG. 12 is a view showing that a high illuminance region is formed in a high beam pattern according to an embodiment of the present invention.

Referring to FIGS. 9 and 11, the second main light ML2 generated by the second main light source 120 may be reflected by the second reflector 320 and transmitted to the lens unit 500. FIG.

Some of the light reflected by the second reflector 320 may be prevented from being transmitted to the lens unit 500 by being blocked by the shield unit 400. The light transmitted through the lens unit 500 can form the high beam pattern P2 shown in FIG.

10 and 12, the auxiliary light EL generated by the auxiliary light source 200 is reflected by the second reflection plate 432 disposed in the shield portion 400 and is transmitted to the second phosphor 620 .

The second phosphor 620 can convert the incident auxiliary light EL into fluorescence FL2 and the fluorescence FL2 can be reflected by the second reflector 320 and transmitted to the lens unit 500 .

The irradiation range of the fluorescent light FL2 transmitted through the lens unit 500 in the present invention may be smaller than the irradiation range of the second main light ML2 transmitted through the lens unit 500. [ That is, the size of the beam pattern by the fluorescence FL2 can be smaller than the high beam pattern P2 by the second main light ML2.

As shown in Fig. 12, the beam pattern by the fluorescence FL2 may be a high illuminance pattern HP2 mapped to a specific region of the high beam pattern P2.

12 shows that the high contrast pattern HP2 is formed in the vicinity of the optical axis Ax but the position of the high contrast pattern HP2 depends on the reflection angle of the auxiliary light EL reflected by the shield portion 400 It can be different.

The high contrast pattern HP2 having a relatively high illuminance is formed in a specific area of the high beam pattern P2 so that the driver can secure an improved view of the area.

Although it has been described above that the phosphors 610 and 620 are provided apart from the shield part 400, according to another embodiment of the present invention, the phosphor may be provided in the shield part.

FIG. 13 is a view showing a shield part in which a phosphor according to an embodiment of the present invention is disposed, and FIGS. 14 and 15 are diagrams showing an auxiliary light path by a shield part in which a phosphor according to an embodiment of the present invention is disposed.

13,

Phosphors 810 and 820 may be disposed on a plurality of inclined surfaces S1 and S2 provided on the shield body 410. [

The phosphors 810 and 820 may be reflection type phosphors. That is, the phosphors 810 and 820 are capable of reflecting the incident light to generate fluorescence FL1 and FL2. Hereinafter, the fluorescent substance disposed on the first inclined plane S1 is referred to as a first reflective fluorescent substance 810, and the fluorescent substance disposed on the second inclined plane S2 is referred to as a second reflective fluorescent substance 820. [

As shown in FIG. 14, when the shield portion 400 is in the first posture, the auxiliary light EL irradiated by the auxiliary light source 200 may be incident on the first reflective fluorescent material 810. The first reflective fluorescent material 810 can convert the incident auxiliary light EL into fluorescence FL1 and guide the auxiliary light EL to the first reflector 310. [ Thus, the first reflector 310 reflects the incoming fluorescence FL1 and emits it forward, and the lens unit 500 can transmit the fluorescence FL1.

As shown in FIG. 15, when the shield portion 400 is in the second posture, the auxiliary light EL irradiated by the auxiliary light source 200 may be incident on the second reflective fluorescent material 820. The second reflective fluorescent material 820 can convert the incident auxiliary light EL into fluorescence FL2 and guide the second auxiliary fluorescent light EL2 to the second reflector 320. [ Thus, the second reflector 320 reflects and irradiates the incident fluorescence FL2 forward, and the lens unit 500 can transmit the fluorescence FL2.

The fluorescence FL1 and FL2 transmitted through the lens unit 500 in this manner can provide a high visual field to the driver by forming a high contrast pattern in a specific area of the low beam pattern P1 or the high beam pattern.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10: Vehicle lamp
110: first main light source
120: second main light source
200: auxiliary light source
210: condenser lens
310: first reflector
320: Second reflector
400: shield part
410: Shield body
420: Support
431: first reflector
432: second reflector
440:
500:
610: First phosphor
620: Second phosphor
810: a first reflective phosphor
820: a second reflective phosphor

Claims (13)

A main light source for irradiating main light;
An auxiliary light source for emitting auxiliary light;
A shield portion changing its posture to block a part of the main light and guiding the sub light in different directions according to the changed attitude;
A lens unit transmitting the main light having passed through the shield unit and the auxiliary light guided by the shield unit; And
And a reflector for reflecting the incident light to guide the light to the lens unit,
Wherein the main light source is disposed at a first focus of the reflector,
Wherein the shield portion has a front end portion adjacent to the second focal point of the reflector and extending rearward from the front end portion. The method according to claim 1,
Wherein the shield portion has an upper surface parallel to the optical axis of the auxiliary light irradiated by the auxiliary light source,
And a rear end portion of the shield portion is provided with a plurality of inclined surfaces forming an angle with respect to the upper surface. 3. The method of claim 2,
Wherein an angle between each of the plurality of inclined surfaces and the upper surface is different from each other. 3. The method of claim 2,
And a reflector for reflecting the auxiliary light irradiated by the auxiliary light source is disposed in each of the plurality of inclined surfaces. 5. The method of claim 4,
Further comprising a phosphor for converting the auxiliary light irradiated by the auxiliary light source into fluorescence,
Wherein the phosphor is spaced apart from the shield portion,
And the auxiliary light reflected by the reflection plate is incident on the phosphor. 6. The method of claim 5,
Wherein the phosphor includes a transmissive phosphor. 3. The method of claim 2,
And each of the plurality of inclined planes is provided with a phosphor for converting auxiliary light irradiated by the auxiliary light source into fluorescence. 8. The method of claim 7,
Wherein the fluorescent material comprises a reflective fluorescent material. The method according to claim 1,
Wherein the auxiliary light source is disposed between the first focus and the second focus. The method according to claim 1,
The main light source includes:
A first main light source for irradiating the first main light in the upward direction; And
And a second main light source for irradiating the second main light in the downward direction,
The reflector includes:
A first reflector for reflecting the first main light and guiding the first main light to the lens unit; And
And a second reflector for reflecting the second main light and guiding the second main light to the lens portion. 11. The method of claim 10,
When the first main light source is turned on, the shield unit guides the auxiliary light irradiated by the auxiliary light source to the first reflector,
And the shield portion guides the auxiliary light irradiated by the auxiliary light source to the second reflector when the second main light source is on. 11. The method of claim 10,
The first main light forms a low beam pattern,
The second main light forms a high beam pattern,
Wherein the auxiliary light forms a high contrast pattern in a specific area of the low beam pattern or the high beam pattern. The method according to claim 1,
Wherein the auxiliary light irradiated by the auxiliary light source includes laser light.

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