KR20190081774A - lamp for vehicle - Google Patents

Abstract

According to an embodiment of the present invention, a lamp for a vehicle comprises a light source unit, and a light guide unit including an incident unit allowing a light generated by the light source unit to enter the same and an exit unit from which the light incident upon the incident unit exits, and transferring light. An optical axis of the light source unit is longitudinally inclined in comparison to a direction in which the light exits from the exit unit. The light guide unit includes: a first area including a first reflection unit to reflect light entering forwards with respect to the optical axis of the light source unit in the light incident upon the incident unit to the exit unit; and a second area which is positioned behind the first area, and includes a second reflection unit to reflect light entering behind the optical axis of the light source unit in the light incident upon the incident unit to the exit unit. The light reflected by the first reflection unit and the light reflected by the second reflection unit may form different areas of beam patterns.

Description

Lamp for vehicle

Field of the Invention [0002] The present invention relates to a vehicle headlamp, and more particularly, to a lamp for a vehicle that forms different areas of a beam pattern through a first reflecting portion and a second reflecting portion of a light guide portion.

2. Description of the Related Art Generally, a vehicle has various types of lamps having a lighting function for easily confirming 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, a head lamp and a fog lamp, which are mainly used for a lighting function function, a turn signal lamp, a tail lamp, a brake lamp, Lamps (Brake lamp), side markers (side markers), and the like. These lamps are regulated by the laws and regulations for their installation standards and specifications so that each function can be fully utilized.

Among the lamps for a vehicle, the headlamp forms a low beam pattern or a high beam pattern so as to ensure the driver's front view when the vehicle is traveling in a dark environment such as at night, and plays a very important role in safety operation .

Such a headlamp is required to maintain a low beam pattern in normal operation so as to prevent the driver of the opposed vehicle traveling in the opposite direction or the driver of the preceding vehicle from being glare-induced in normal operation, A high beam pattern is formed in accordance with the present invention to ensure safe operation.

However, there is a case where a high beam pattern is formed in a state in which the opposite vehicle or the preceding vehicle can not be recognized. In such a case, there is a problem in that safety accidents are caused by causing glare to the opposite vehicle driver or the lead vehicle driver.

Accordingly, in recent years, when a vehicle or a preceding vehicle is detected while driving in a state in which a high beam pattern is formed, the angle of light illumination, brightness, width, and length of the lamp are automatically adjusted so that the opponent vehicle or the lead- An adaptive driving beam (ADB) headlamp, that is, an adaptive headlamp is provided.

The adaptive headlamp is a dynamic type in which a dark zone is formed in a space where the opposing vehicle or the preceding vehicle is located by changing the angle of the ramp by the swivel actuator when the opposing vehicle or the preceding vehicle is sensed. And a matrix type in which a light block is formed in a space in which the opposing vehicle or the preceding vehicle is located by selectively turning on or off a plurality of light sources.

Here, in the case of the adaptive headlamp of the matrix type, the adaptive headlamp includes a lens in which a plurality of light sources are densely arranged so that a plurality of divided patterns formed by the lights emitted from the respective light sources are spaced from each other,

In the case of such an adaptive headlamp, as described above, the driver or the driver of the opposed vehicle traveling in the opposite direction mainly maintains the low beam pattern during normal operation so as to prevent the occurrence of the glare, In the case of traveling in a dark place, a high beam pattern is formed as needed to ensure safe operation.

Korean Patent No. 10-1461550

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lamp for a vehicle which increases the efficiency of transmitted light through a single light guide portion and forms a beam pattern for a vehicle without any special device.

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

The lamp for a vehicle according to an embodiment of the present invention includes a light source unit, a light guide unit for transmitting light generated by the light source unit, and a light guide unit for transmitting light, the light source unit being located forward and including an output unit for emitting light incident on the light source unit, The optical axis of the light source unit is inclined in the longitudinal direction with respect to the direction in which the light is emitted from the emitting unit, and the light guide unit excites the light incident forward on the basis of the optical axis of the light source unit, And a second reflector which is positioned behind the first area and reflects light incident on the light incident on the light incident part rearward beyond the optical axis of the light incident part to the exit part Wherein the light reflected by the first reflecting portion and the light reflected by the second reflecting portion are reflected by a portion of the beam pattern Other regions can be formed.

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, different regions of the beam pattern can be formed through the first region and the second region of the light guide portion.

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

1 to 3 are views showing a lamp for a vehicle according to an embodiment of the present invention.
4 is a view illustrating a first reflector of a lamp for a garage according to an embodiment of the present invention.
5 and 6 are views showing the optical path of a lamp for a vehicle according to an embodiment of the present invention.
7 is a view showing a beam pattern of a vehicle lamp according to an embodiment of the present invention.
8 to 10 are views showing a lamp for a vehicle according to another embodiment of the present invention.
11 and 12 are views showing a light path reflected by a second reflector of a vehicle lamp according to another embodiment of the present invention.
13 is a view showing a light distribution diagram of a vehicle lamp according to an embodiment of the present invention.
FIG. 14 is a view showing a light distribution diagram of a vehicle lamp according to another embodiment of the present invention. FIG.
Figs. 15 to 17 are views showing an emission unit of a vehicle lamp according to an embodiment of the present invention. Fig.

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 become apparent with reference to the embodiments described in detail below with reference to 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.

The lamp for a vehicle according to the embodiment of the present invention is used for a headlamp which is installed on both sides of the front side of the vehicle so as to ensure the front view of the vehicle by irradiating light in the running direction when the vehicle is traveling in a dark place But the present invention is not limited to this. The vehicle lamp of the present invention can be used not only for a head lamp but also for a tail lamp, a brake lamp, a fog lamp, a position lamp, A turn signal lamp, a daytime running lamp, a backup lamp, and the like.

When the vehicle lamp of the present invention is used for a headlamp, the vehicle lamp of the present invention can form a low beam pattern having a predetermined cutoff line so as not to cause glare to the driver of the preceding vehicle or the opponent vehicle.

Hereinafter, preferred embodiments of a vehicle lamp according to the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 1 to 3 are views showing a lamp for a vehicle according to an embodiment of the present invention, and FIG. 4 is a view illustrating a first reflector of a lamp for a vehicle according to an embodiment of the present invention.

 1 to 3, a vehicle lamp according to an embodiment of the present invention may include a light source unit 10 and a light guide unit 20.

The light source unit 10 may include at least one light source for generating light having a light quantity or color suitable for the use of the vehicle lamp of the present invention. In the present invention, for example, when light is generated in a downward direction, However, the direction in which light is emitted from the light source unit 10 may vary depending on the position of the light guide unit 20, which is one example for facilitating understanding of the present invention. Although the light guide unit 20 is positioned above the light source unit 10 and the light is generated in the upward direction by the light source unit 10, . Therefore, the optical axis Ax1 of the light source portion may be inclined in the longitudinal direction as compared with the direction in which the light is emitted from the emitting portion.

The light guide portion 20 may include an incident portion 100, a first region 200, a second region 300, and an output portion 400.

The incident part 100 receives the light generated from the light source part 10. The first area 200 may include a first reflector 210 for forwardly reflecting the light incident forward on the optical axis Ax1 of the light source unit 10 among the light incident on the incidence unit 100 The second area 300 is located behind the first area 100 and reflects light incident backward from the optical axis Ax1 of the light source part 10 among the light incident on the incident part 100 forward And the outgoing portion 400 may be positioned forward of the first region so that light reflected by the first and second reflectors 210 and 310 may be emitted .

Also, the light reflected by the first reflector 210 and the light reflected by the second reflector 310 may form beam patterns in different regions.

The distance from the light source 10 to the first reflector 210 and the distance from the light source 10 to the second reflector 310 are different from each other. When the distance from the light source unit 10 to the first reflector 210 is longer than the distance from the light source unit 10 to the second reflector 310, 2, the light reflected by the first reflecting portion 210 is more effective than the light reflected by the second reflecting portion 310 to form a cut-off of the beam pattern.

Therefore, in the embodiment of the present invention, the light reflected by the first reflecting portion 210 is emitted from the emitting portion 400 to form a light collecting region of the beam pattern, and the light reflected by the second reflecting portion is emitted from the emitting portion A diffusion region of the beam pattern can be formed.

In the embodiment of the present invention, the light emitted from the light guide portion 20 means that the light is emitted from the vehicle lamp of the present invention in the direction in which the light is irradiated. The direction that the front means according to the direction and the like may be different.

Hereinafter, the incident portion, the first optical element, the second optical element, and the emitting portion of the light guide portion of the vehicle lamp according to the embodiment of the present invention will be described in detail.

The incidence portion 100 of the lamp for a vehicle according to the embodiment of the present invention includes a first incidence portion 110 through which light is incident in front of the optical axis Ax1 of the light source portion 10, And a second incident portion 120 through which light is incident from behind.

The first incidence part 110 is positioned ahead of the second incidence part 120 with respect to the optical axis Ax1 of the light source part 10 and is arranged so that the light generated in the light source part 10 is reflected And the second incident portion 120 may transmit the light generated from the light source portion 10 to the second reflection portion 310 of the second region 300. [

The first incident portion 110 is formed with a first incident surface 112 through which the light of the light source unit 10 is incident and the second incident portion 120 is formed with a second incident surface The light incident on the third incident surface 124 and the light incident on the third incident surface 124 may be reflected to the second region 300. [

The first incident surface 112 may be positioned closer to the light source unit 10 than the second reflective surface 122 in order to efficiently transmit the light incident from the light source unit 10 to the first reflector 210 , The area of the first incident surface 112 may be smaller than the area of the second reflection surface 122.

The reason why the first incident surface 112 has a small area is that the distance from the light source unit 10 to the first reflector 210 of the first region 200 is smaller than the distance from the light source unit 10 2 region 300 to the second reflecting portion 310 to increase the brightness of light incident on the first incident surface 112.

The second incident surface 122 may be spaced apart from the first incident surface 112 in the direction of the optical axis Ax of the light source unit as described above and the light incident from the light source unit 10 The third incident surface 124 protrudes toward the light source unit 10 from the outer peripheral edge of the second incident surface 122 and is transmitted to the second reflector 310 of the second area 300, And the light reflecting surface 126 is formed so as to increase the separation distance apart from the optical axis Ax1 of the light source unit 10 as the distance from the light source unit 10 increases along the optical axis direction of the light source unit 10, The light incident on the incident surface 124 can be reflected to the second reflecting portion 310 of the second region 300.

Accordingly, as described above, the light reflected by the second reflection surface of the second region forms a diffusion region of the beam pattern, and therefore, the second incident surface 122 and the third incident surface 124 of the second incident portion The beam incident from the front light source unit 10 is transmitted to the second reflecting unit 310 as much as possible, so that a beam pattern can be efficiently formed.

In addition, some of the first incident surface 112 and the second incident surface 122 may be formed to have different curvatures from the other partial surfaces. For example, at least a portion of the first incident surface 112 may be formed with a curvature formed or recessed inward of the first incident portion 200, and at least a portion of the second incident surface 122 may be formed A curvature may be formed in the direction of the light source 10.

The first region 200 of the lamp for a vehicle according to the embodiment of the present invention includes a first reflector 210 for forwardly reflecting light incident forward of the optical axis Ax1 of the incident portion 100 And the second region 300 may include a second reflective portion 310 for forwardly reflecting the light incident on the rear side of the optical axis Ax1 of the incident portion 100. The first reflective portion 210 And the light reflected by the second reflecting portion 310 may form different regions of the beam pattern.

3 and 4, the first reflector 210 includes a plurality of reflective surfaces 212, 214, and 216 that reflect the light incident from the incident portion 100 toward the front emission portion And at least one of the plurality of reflection surfaces may be formed with different curvature, and the focal lengths F1, F2, and F3 of the respective reflection surfaces may be formed according to the curvature. The curvature is formed forward from the optical axis Ax1 of the light source unit 10 to be away from the light source unit 10. The focal length is a line formed in the forward direction in the light source unit 10 perpendicular to the optical axis Ax1 of the light source unit 10 Ax2 represents the distance from the light source 10 to the contact point when there is a contact point where an extension line formed according to the curvature of each of the reflective surfaces F1, F2 and F3 meets.

The first reflection unit 210 includes a first reflection surface 212 having a first focal length F1, a second reflection surface 214 having a second focal length F2, and a third focal distance F3 The distance D1 from the light source unit 10 to the first reflecting surface 216 is the shortest and the distance from the light source unit 10 to the second reflecting surface 214 is the shortest, D2 is longer than D1 and D3, which is the distance from the light source unit 10 to the third reflecting surface 216, is longer than D2.

As a result, the third focal length F3 is formed to be longest according to the curvature of the third reflection surface and D3, and the second focal distance F2 is formed to be shortest next to the curvature of the second reflection surface and D2 , The first focal length F1 may be formed to be the smallest according to the curvature of the first reflecting surface 212 and D1.

Accordingly, as described above, since the third reflection surface is preferable to form the cutoff region according to D3 and the third focal distance, the spot region of the beam pattern can be formed, and the second reflection surface can be formed by D2 and the second focal distance Off region of the beam pattern, and the third reflection surface can form an intermediate diffusion region of the beam pattern. Again, this will be described later.

2 and 3, a plurality of third reflecting surfaces 216 are provided inside the plurality of first reflecting surfaces 212, and a plurality of second reflecting surfaces 216 are provided inside the plurality of third reflecting surfaces 216. [ And the first reflection surface 212 is provided on the inner side of the plurality of second reflection surfaces 214. However, the present invention is not limited to such a structure, and it is possible to change it as much as required according to the design.

The first reflection surface, the second reflection surface, and the third reflection surface may be formed as a parabolic reflection surface in order to efficiently reflect the light transmitted from the incident portion forward, but the present invention is not limited thereto.

The first region 200 may further include an outer surface 218 and the incident portion 100 may further include a connecting surface 114 connected to the outer surface 218 and the connecting surface 114 may include a light source portion 10 The distance from the optical axis Ax1 of the light source unit 10 increases as the distance from the light source unit 10 increases in the optical axis direction of the light source unit 10. [

When one side of at least one of the plurality of reflection surfaces of the first reflection surface 212 is connected to one side or the other side of the outer surface 218, the inclination of the connection surface 114 is inclined with respect to the first reflection surface 218 connected to one side of the outer surface 218, And the focal length of the reflecting surface connected to one side of the outer surface.

For example, when the front end position of one side of the reflecting surface connected to the outer surface 218 is referred to as an intermediate point M, a first point P1 and a middle point M A second point P2 spaced rearward by a focal distance F1 is formed so that one side 114a of the connecting surface 114 has an outer surface 218 between the first point P1 and the second point P2 Lt; / RTI > The reason for this is to prevent the glare formed on the beam pattern and to increase the light efficiency.

1 to 4, one side of the plurality of first reflection surfaces 212 can be connected to one side and the other side of the outer side 218, and each middle point M of the plurality of first reflection surfaces can be connected And may be formed so that one side 114a of the connecting surface 114 is positioned near an imaginary line or a virtual line. Here, the neighborhood may be formed with the first focal length F1 of the first reflection surface 212 as described above. Accordingly, in the range formed from the imaginary line connecting the plurality of first points P1 formed in front of each middle point M to each virtual point connecting the respective second points P2 formed behind the respective middle points, One of the sides 114a of the base plate 110 may be connected to the outer surface 218. [

If the one side 114a of the connection surface is located further forward than the predetermined range, light not incident on the first reflector 210 may be emitted from the light incident on the first incident portion 110, When this light is output through the output portion, a glare can be formed in the upper region of the beam pattern. The amount of light transmitted from the first incident portion 110 to the first reflector 210 is reduced so that the light emitted from the exit portion 400 Can be reduced.

The second region 300 according to the embodiment of the present invention may include a second reflective portion 310 and the second reflective portion may be formed of at least one reflective surface 312.

As shown in FIGS. 1 to 4, in order to forwardly reflect the light incident on the second incident portion, the fourth reflection surface 312 is formed so that the closer to the light source portion 10 in the direction of the optical axis Ax1 of the light source portion 10, 10 so as to increase the distance from the optical axis Ax1 of the second lens group 10. Accordingly, the fourth reflection surface 312 can reflect the light transmitted from the second incident surface 122 and the light reflection surface 126 of the second incident portion forward.

In order to efficiently reflect the light transmitted from the incident portion forward like the first reflection surface, the second reflection surface, and the third reflection surface of the first region 200 described above, Type reflection surface, but the present invention is not limited thereto.

Hereinafter, the optical path of the vehicle lamp according to the embodiment of the present invention will be described. 5 and 6 are views showing a light path of a vehicle lamp according to an embodiment of the present invention, and FIG. 7 is a view showing a beam pattern of a lamp for a vehicle according to an embodiment of the present invention.

5 to 7, a lamp for a vehicle according to an embodiment of the present invention includes a first light L1 incident on a first incident surface 112 of a first incident portion 110 of a light source 10, The light reflected by the first reflector 210 is transmitted through the first reflector 210 of the first area 200 to the front of the first reflector 210, Regions.

As described above, the light reflected by the third reflecting surface 216 forms the spot region H including the cut-off region of the beam pattern of the present invention, and the light reflected by the second reflecting surface 216 is reflected And the light reflected by the first reflection surface 214 can form the intermediate diffusion region M. [0156]

The second light L2 incident on the second incident surface 122 of the second incident portion 120 in the light source unit 10 is reflected by the fourth reflection surface 312 of the second region 300, And the third light L3 incident on the third incident surface 124 of the second incident portion 120 is reflected by the light reflecting surface 126 to be incident on the second incident surface 124 of the second incident portion 120, And may be forwardly reflected at the fourth reflection surface 312 and may be output to the output unit 400 through the first area 200. [ Accordingly, the second light L2 and the third light L3 reflected from the second region 300 can form the diffusion region S of the beam pattern as shown in FIG.

Meanwhile, the second reflector 310 of the vehicle lamp according to another embodiment of the present invention may be formed of a plurality of reflective surfaces, and may be formed so that light transmitted from the incident portion can be reflected forward.

8 to 10 are views showing a second reflector of a lamp for a vehicle according to another embodiment of the present invention.

Referring to FIGS. 8 to 10, the second reflecting portion 310 includes a fifth reflecting surface 314 for reflecting the light incident on the second incident surface 212 of the second incident portion 300 forward, At least one sixth reflective surface 316 that reflects light transmitted from the light reflection portion 126 of the incident portion 120 and at least one reflective surface that reflects the light reflected by the sixth reflective surface 316 forward And may further include a seventh reflecting surface 318.

The fifth reflector 314 may reflect the light incident on the second incident surface 122 of the second incident portion 120 in a similar manner to the fourth reflector 312, The distance from the optical axis Ax1 of the light source unit 10 increases toward the light source unit 10 in the direction of the optical axis Ax1 of the light source unit 10. [

The sixth reflecting surface 316 is located behind the fifth reflecting portion 314 and extends from the optical axis Ax1 of the light source portion 10 away from the light source portion 10 along the optical axis Ax1 direction of the light source portion 10 The spaced distance is inclined so as to increase in at least one of the right and left directions which is one of the directions perpendicular to the optical axis Ax1 of the light source unit 10 so that the light transmitted from the light reflecting surface 216 is transmitted to the left or right direction As shown in FIG.

The seventh reflection surface 318 may be inclined to form a predetermined angle with a line Ax2 perpendicular to the optical axis Ax1 of the light source unit 10 and may be inclined with respect to the optical axis Ax1 The light reflected in the left or right direction can be reflected forward.

10, the plurality of sixth reflection surfaces and the plurality of seventh reflection surfaces may be positioned behind the fifth reflection surface and may be formed to be symmetrical with respect to the optical axis Ax1 of the light source unit 10. [

Hereinafter, the optical path of the second reflector of the vehicle lamp according to another embodiment of the present invention will be described.

11 and 12 are views showing a light path reflected by a second reflector of a vehicle lamp according to another embodiment of the present invention.

The light L1 incident on the first incident surface 112 of the first incident portion 110 in the light source unit 10 is transmitted to the first reflector 210 of the first region 200, The light reflected by the first reflecting portion 210 forms a light collecting region of the vehicle beam pattern through the emitting portion 400. [

The fourth light L4 incident on the second incident surface 122 of the second incident portion 120 in the light source portion 10 is reflected by the fifth reflection surface of the second region 300 and is emitted through the first region The fifth light L5 emitted from the light source unit 400 and incident on the third incident surface 124 is transmitted to the sixth reflecting surface 316 by the light reflecting surface, And the fifth light 5L reflected by the sixth reflection surface 318 is again reflected forward by the seventh reflection surface 318 and is emitted through the first region 200 (400). ≪ / RTI >

The light reflected by the fifth reflection surface 314, the sixth reflection surface 316 and the seventh reflection surface 318 forms a diffusion region of the vehicle beam pattern shown in FIG. 7 similarly to the fourth reflection surface 312 However, there are differences as follows.

The fourth reflecting surface 312 of the rear light source element according to the embodiment of the present invention and the fifth reflecting surface 314, the sixth reflecting surface 316 and the seventh reflecting surface 318 according to another embodiment of the present invention The distribution of the reflected light is shown in FIGS. 13 and 14. FIG.

FIG. 13 is a distribution diagram of the light formed on the fourth reflection surface 312 of the vehicle lamp according to the embodiment of the present invention, and FIG. 14 is a view showing the fifth reflection surface 314 of the vehicle lamp according to another embodiment of the present invention, 6 is a distribution diagram of light formed by the sixth reflection surface 316 and the seventh reflection surface 318. Fig.

13, it can be seen that the light is distributed in a region close to the optical axis Ax1 of the light source unit 10 according to the shape of the fourth reflection surface 312. [ 14, depending on the shape of the fifth reflection surface 314, the sixth reflection surface 316, and the seventh reflection surface 318, the light is reflected in a region close to the optical axis Ax of the light source portion 10 And is also distributed in a region spaced apart from the optical axis Ax1 of the light source unit 10. [ Therefore, it is confirmed that the distribution of light according to the fifth reflection surface 314, the sixth reflection surface 316, and the seventh reflection surface 318 is uniformly formed as compared with the distribution of light along the fourth reflection surface.

Therefore, since the light reflected by the fourth reflection surface 312 is distributed only in an area close to the optical axis Ax1 of the light source unit 10, when the vehicle lamp is viewed from the outside when the lamp is turned on, The light reflected by the fifth reflection surface 314, the sixth reflection surface 316 and the seventh reflection surface 218 is incident on the optical axis Ax1 of the light source unit 10 and the optical axis Ax1, The illuminated image can be formed more uniformly than the illuminated image formed by the fourth reflector 312 because the illuminated zone is small when the vehicle lamp is viewed from the outside when the illuminated lamp is illuminated

Hereinafter, an emission unit of a vehicle lamp according to an embodiment of the present invention will be described.

Figs. 15 and 16 are views showing an emission unit of a vehicle lamp of the present invention. Fig.

The light outputting section 400 is formed of a plurality of light output surfaces and includes a light outputting area 410 formed at least at a part of the plurality of light output surfaces and a diffusion outputting area 420 formed at another part of the light outputting surface, And the condensed light outputting region 410 is a region where light reflected by the first reflecting portion 210 of the first region 200 is emitted and the diffusion outputting region 420 is a region where the light is reflected by the second region 300, The light emitted from the second reflective portion 310 of the light guide plate 310 may be emitted. Since the distance of the light transmitted from the light source unit 10 to the first reflector 210 is longer than the distance of the light reaching the second reflector 310 from the light source unit 10, 420 may be formed closer to the light source unit 10 than the second emission region. Here, the fact that the light-converging output area or the diffusion birth area is formed in a part of the plurality of exit surfaces means that each exit area may be formed not only on one exit surface but also on a part of the area of one exit surface. This can be similarly applied to the first to third reflection surfaces to be described later.

Again, the light collection output area 410 includes at least one first output area 412, at least one second output area 414, and at least one third output area 416, The light reflected by the first reflecting surface 212 of the first reflecting portion 210 is emitted and the light reflected by the second reflecting surface 214 is emitted to the second emitting region 414, 3 emission region 416 can emit the light reflected by the third reflection surface 216. [

As described above, a plurality of third reflecting surfaces 216 are located inside the plurality of first reflecting surfaces 212, and a plurality of second reflecting surfaces 214 are provided inside the plurality of third reflecting surfaces 216 At least one first reflection surface 212 is provided inside the plurality of second reflection surfaces 214 and a plurality of first reflection surfaces 212 provided at the outermost surface are provided on the inner side of the plurality of first reflection surfaces 212, At least one second outgoing region is located at least one of the left and right directions in the optical axis Ax1 of the light source unit 10 with respect to the first outgoing region, And at least one third emission area 416 is formed outside the first emission area 412 in at least one of the left and right directions on the optical axis Ax1 of the light source part 10, And at least one of the first outgoing radiation regions 412 is formed on the outer side of the third light source section 10 in the direction of the optical axis Ax of the light source section 10, It can be formed closer to the light source unit 10 than the emission area 416.

15, the plurality of first emission regions 412 may be formed in the vicinity of both side edges of the emission portion 400 close to the light source portion 10, and the plurality of third emission portions 416 may be formed in the vicinity of the light- A plurality of second emission regions 414 may be formed inside the plurality of third emission surfaces 416, and a plurality of second emission regions 414 may be formed in the plurality of third emission surfaces 416. In this case, A plurality of first outgoing regions 412 may be formed inside the second outgoing region 414 of FIG.

In addition, the size of each outgoing area may be changed according to the size, position, and curvature of the first and second reflectors.

On the other hand, at least one of the plurality of exit surfaces may be formed so as to protrude forward from the other exit surface.

16 and 17 are views showing an emitting unit according to the embodiment of the present invention.

16, the emitting unit includes at least one stepped surface 406 inclined so that the lower emitting surface 402 located at the lower one of the plurality of emitting surfaces protrudes forward than the upper emitting surface 404 located at the upper side .

When the light reflected by the first reflector 210 or the second reflector 310 is emitted from the stepped surface 406, the light is reflected by the stepped surface 406 as shown in FIG. 16 (a) The lower beam is refracted in accordance with the critical angle, so that the low beam pattern shown in FIG. 16 (b) can be formed. That is, since light emitted to the area A, which is the upper area of the low beam pattern, is less, glare formation can be prevented.

On the contrary, if the stepped surface 406 is formed so that the upper exit surface 404 located on the upper side protrudes forward than the lower exit surface 402 located on the lower side as shown in FIG. 17, The light can be refracted in the upward direction according to the critical angle of the stepped surface as shown in Fig. 17 (a), so that when the light reflected from the stepped surface 406 is emitted, Can be formed. That is, since light emitted to the A region, which is the upper region of the low beam pattern, is formed, glare can be formed.

Accordingly, it is preferable to form the emitting portion such that the lower emitting surface 402 located below the upper emitting surface 404 forming the effective low beam pattern protrudes forward than the upper emitting surface 404 located above.

In addition, the vehicle lamp according to the embodiment of the present invention may be generated in the upward direction in the light source unit 10 as described above, so that the light guide unit 20 can reflect the light generated from the lower side forward. At this time, the lower emission surface provided on the lower side can protrude forward from the upper emission surface provided on the upper side to prevent glare formation

However, when the high beam pattern is formed in the area A, at least one upper outgoing surface provided on the upper side of the plurality of outgoing parts protrudes forward from the lower outgoing surface provided on the lower side to allow light to be formed in the A area .

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: light source part 20: light guide part
100: incident part 110: first incident part
112: first incident surface 114: connecting surface
120: second incident portion 122: second incident surface
124: third incident surface 126: light reflecting surface
200: first region 210: first reflection portion
212: first reflection surface 214: second reflection surface
216: third reflection surface 218: outer surface
300: second region 310: second reflection portion
312: fourth reflection surface 214: fifth reflection surface
216: sixth reflection surface 218: seventh reflection surface
400: output unit 410: first output area
412: first emitting surface 414: second emitting surface
416: third emitting surface 420: second emitting region

Claims (16)

A light source; And
And a light guiding part including a light incidence part for receiving the light generated from the light source part and an emitting part for emitting light incident on the incidence part,
The optical axis of the light source unit is inclined in the longitudinal direction with respect to the direction in which the light is emitted from the emitting unit,
The light guide portion
A first region including a first reflection portion that reflects light incident forward on the basis of an optical axis of the light source portion to the emission portion among light incident on the incident portion; And
And a second reflecting portion located behind the first region and reflecting light incident on the incident portion rearward of the optical axis of the light source portion to the emitting portion,
Wherein the light reflected by the first reflecting portion and the light reflected by the second reflecting portion form different areas of the beam pattern. The method according to claim 1,
Wherein a distance of light transmitted from the light source unit to the first reflector is longer than a distance of light from the light source unit to the second reflector. The method according to claim 1,
The light reflected by the first reflecting portion is emitted from the emitting portion to form a light collecting region of the beam pattern
And the light reflected by the second reflecting portion is emitted from the emitting portion to form a diffusion region of the beam pattern. The method according to claim 1,
The incidence portion
A first incidence portion through which light is incident in front of the optical axis of the light source portion,
And a second incident portion through which light is incident from behind the optical axis of the light source portion,
The first incidence portion
A first incident surface through which light generated from the light source unit is incident; And
And a connection surface connected to the front light source element from the first incident surface,
The second incidence portion
A second incident surface through which light from the light source unit is incident;
A third incident surface protruding from the outer peripheral edge of the second incident surface toward the light source portion; And
And a light reflecting surface connected to the second region and reflecting light incident from the third incident surface. 5. The method of claim 4,
Wherein an area of the first incident surface is smaller than an area of the second incident surface. The method according to claim 1,
The first reflector
And a plurality of reflection surfaces for reflecting the light incident on the incident portion forward,
At least one of the plurality of reflection surfaces is formed with a different curvature,
Wherein the plurality of reflection surfaces form a focal distance according to a curvature,
Wherein the focal distance indicates a distance from a contact point where a line perpendicular to an optical axis of the light source unit formed on the position of the light source unit and an extension line formed according to a curvature of each reflection plane meet. The method according to claim 6,
The plurality of reflecting surfaces
The first reflection surface having the shortest focal length,
A second reflection surface having a longer focal distance than the first reflection surface,
And a third reflection surface having a longer focal distance than the second reflection surface,
Wherein the light reflected by the first reflective surface forms a spot area of the beam pattern, the light reflected by the second reflective surface forms a horizontal cut-off area of the beam pattern, A lamp for a vehicle that forms a diffusion region. The method according to claim 6,
The incidence portion includes a connection surface connected to an outer surface of the first region,
Wherein the connecting surface is inclined forward so as to increase a separation distance apart from an optical axis of the light source unit as the distance from the light source unit increases in an optical axis direction of the light source unit,
Wherein at least one of the plurality of reflection surfaces is connected to one side of the outer surface so that a slope of the connection surface is formed in accordance with a focal length of a front end of a reflection surface connected to one side of the outer surface and a reflection surface connected to one side of the outer surface, A vehicle lamp formed. The method of claim 8, wherein
A first point spaced apart by the focal distance forward and a second point spaced apart from the center point by the focal distance are formed at a midpoint, which is a front end position of a reflecting surface connected to the outer surface,
And one side of the connecting surface is connected to the outer surface between the first point and the second point. The method according to claim 1,
Wherein the second reflective portion includes at least one reflective surface,
Wherein the reflecting surface reflects the light incident from the incident portion forward. 11. The method of claim 10,
Wherein the reflecting surface is inclined such that a distance from the optical axis of the light source unit is increased as the light source unit is closer to the light source unit in the optical axis direction of the light source unit. 11. The method of claim 10,
And the other of the reflection surfaces reflects the light transmitted from the incident portion in one of the right and left directions with respect to the optical axis of the light source portion and transmits the reflected light to the reflection surface. The method according to claim 1,
The output unit
A light condensing emission area where light transmitted from the first reflecting part of the first area is emitted,
And a diffusion outputting region in which light transmitted from the second reflecting portion of the second region is emitted,
Wherein the diffusion outputting region is formed closer to the light source portion than the light converging / outputting region. 14. The method of claim 13,
In the condensed light output area
At least one first emission region through which light forming the intermediate diffusion region of the beam pattern emanates;
At least one second emission region through which light forming a horizontal cut-off region of the beam pattern emanates; And
And at least one third outgoing area through which light forming the spot region of the beam pattern is emitted. 15. The method of claim 14,
Wherein the at least one first emission region is formed at a position spaced apart from the first emission region in the light source portion with respect to an optical axis direction of the light source portion,
The at least one second outgoing area is formed outside the first outgoing area in a direction perpendicular to the optical axis of the light source part,
Wherein the at least one third outgoing area is formed outside the second outgoing area in a direction perpendicular to the optical axis of the light source part,
And the at least one other first outgoing area is formed closer to the light source part than the third outgoing area in the direction of the optical axis of the light source part. The method according to claim 1,
Wherein the emitting portion includes a plurality of emitting surfaces,
And an emission surface positioned below the plurality of emission surfaces is formed to protrude forward from an emission surface located on the upper side.

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