KR101987286B1 - A lamp for vehicle - Google Patents

Abstract

A vehicle lamp according to an embodiment of the present invention includes a first light source, a second light source, and a lens for refracting light emitted from the first light source and light emitted from the second light source and irradiating the light toward the front of the vehicle, The lens includes an incidence portion in which light emitted from the first light source and the second light source is incident, and an exit portion in which light from the first light source and the second light source incident into the lens through the incidence portion is refracted and emitted Wherein the exit portion includes a plurality of facets each having an independent curvature and each of the plurality of facets refracts light emitted from the first light source to generate a main beam pattern.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp for a vehicle, and more particularly to a lamp for a vehicle that irradiates a beam pattern toward the front of the vehicle.

2. Description of the Related Art [0002] Generally, a vehicle is equipped with various types of vehicle 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 vehicle or road users of the running state of the vehicle.

For example, a low beam, a high beam, a turn signal, and a position lamp are installed in a head lamp installed in front of a vehicle, and a daytime running light (DRL) is recently added.

Each lamp is regulated by laws and regulations for its installation and specifications so that each function can be fully utilized, and the lenses of each lamp are designed separately so that beam patterns satisfying the regulations are irradiated.

In particular, in the case of a low beam, a beam pattern must be formed below a predetermined cut-off line so as not to interfere with the field of view of a driver of an opposite vehicle, unlike other beam patterns. In order to form a beam pattern in which a cut-off line is formed, a method of implementing a cut-off line by shielding a part of light emitted from a light source by providing a shield between a light source and a lens is widely used.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle lamp capable of implementing various beam patterns using a single lens.

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.

According to an aspect of the present invention, there is provided a lamp for a vehicle, comprising: a first light source, a second light source, and a light source for emitting light emitted from the first light source and light emitted from the second light source, Wherein the lens includes an incidence portion through which light emitted from the first light source and the second light source is incident and a light source that reflects light emitted from the first light source and the second light source incident into the lens through the incidence portion, Wherein the output portion includes a plurality of facets each having an independent curvature and each of the plurality of facets refracts light emitted from the first light source to generate a main beam pattern.

The main beam pattern may be a low beam pattern forming a cut-off line.

The facets of at least some of the plurality of facets may include an inclined surface formed downward toward the front of the vehicle.

The first light source may be located on the optical axis of the lens.

The second light source may be positioned below the first light source.

The light emitted from the second light source is refracted by the plurality of facets and may form a beam pattern formed on the upper and lower portions of the cut-off line.

The beam pattern formed by the light emitted from the second light source may be at least one of a static bendig light (SBL) pattern, a dynamic bending light (DBL) pattern, a cornering beam pattern, a high beam pattern, a daytime running beam pattern, and a position beam pattern .

The second light source may be dimming-controlled when a beam pattern formed by light emitted from the second light source is used as the position beam pattern.

The total reflection section may include a light source that emits a part of the light emitted from the first light source or the second light source and incident into the lens through the light incidence section, And total reflection toward the plurality of facets.

The total reflection part may be formed with a curvature that reflects light incident on the total reflection part of the light emitted from the first light source in parallel to the optical axis of the lens.

The exit portion may form a front surface of the lens, the entrance portion may form a rear surface of the lens, and the total reflection portion may connect the exit portion and the entrance portion to form a side surface of the lens.

The total internal reflection part totally reflects external light incident into the lens through at least a part of the plurality of facets at least two times inside the lens so as to exit the outside of the vehicle through the plurality of facets.

The plurality of facets may include an exit surface formed of at least two kinds of polygons.

The incident portion may be formed so as to be gradually reduced in diameter toward the inside of the lens.

The main beam pattern may be a high beam pattern.

Other specific details of the invention are included in the detailed description and drawings.

The embodiments of the present invention have at least the following effects.

A variety of beam patterns can be implemented using a single lens.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the specification.

1 is a front perspective view showing a lens of a vehicle lamp according to a first embodiment of the present invention.
Fig. 2 is a plan view showing the lens of Fig. 1. Fig.
3 is a side view showing the lens of Fig.
4 is a rear perspective view showing the lens of Fig.
5 is a schematic sectional view showing a lamp for a vehicle according to the first embodiment of the present invention.
6 is a view showing a low beam pattern realized by the first light source of the vehicle lamp according to the first embodiment of the present invention.
7 is a diagram illustrating a DRL pattern implemented by the second light source of the vehicle lamp according to the first embodiment of the present invention.
8 is a front perspective view showing a lens of a vehicle lamp according to a second embodiment of the present invention.
Fig. 9 is a plan view showing the lens of Fig. 2. Fig.
10 is a rear perspective view showing the lens of FIG. 2. FIG.
11 is a front perspective view showing a lens of a vehicle lamp according to a third embodiment of the present invention.
12 is a front view showing a lens of a vehicle lamp according to a fourth embodiment of the present invention.
13 is a schematic cross-sectional view taken along the line BB in Fig.

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. To fully disclose 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.

Further, the embodiments described herein will be described with reference to cross-sectional views and / or schematic drawings that are ideal illustrations of the present invention. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. In addition, in the drawings of the present invention, each component may be somewhat enlarged or reduced in view of convenience of explanation. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for explaining a vehicle lamp according to embodiments of the present invention.

FIG. 1 is a front perspective view showing a lens of a vehicle lamp according to a first embodiment of the present invention, FIG. 2 is a plan view showing the lens of FIG. 1, FIG. 3 is a side view showing the lens of FIG. 1, 4 is a rear perspective view showing the lens of Fig. 1, and Fig. 5 is a schematic sectional view showing a lamp for a vehicle according to the first embodiment of the present invention.

5, the vehicle lamp according to the first embodiment of the present invention includes a lens 1, a first light source 41, and a second light source 42. [ The vehicle lamp according to the first embodiment of the present invention may be one of the lamps constituting the headlamp of the vehicle and the lens 1 may transmit light emitted from the first light source 41 and the second light source 42 (See Figs. 6 and 7) which is refracted and irradiated to the front of the vehicle.

As shown in Figs. 1 to 5, the lens 1 includes an incident portion 10, an output portion 30, and a total reflection portion 20. The incident part 10 forms the rear surface of the lens 1 and the output part 30 forms the front surface of the lens 1. The total reflection part 20 forms the output part 30 and the incident part 10 And forms the side surface of the lens 1.

As shown in Figs. 1 to 3, the emitting unit 30 is constituted by a plurality of facets 31. Fig. Each facet 31 has an independent curvature. Thus, the plurality of facets 31 may all have different sizes and curvatures, and the plurality of facets 31 may be composed of a plurality of groups of similar size or curvature.

The size and curvature of each facet 31 are designed such that the combination of light emitted from the first light source 41 and passing through each facet 31 forms a low beam pattern (see FIG. 6) forming a cut-off line . Or the size and curvature of each facet 31 may be designed such that the combination of light emitted from the first light source 41 and passing through each facet 31 forms a high beam pattern. Hereinafter, for convenience of explanation, the case where a low beam pattern is implemented by the light emitted from the first light source 41 will be described.

As shown in Figs. 4 and 5, the incidence portion 10 is recessed into the lens 1. As shown in FIG. 5, the incident portion 10 may be formed so as to gradually decrease in diameter toward the inside of the lens 1.

The incident portion 10 includes a first incident surface 11 facing the emitting portion 30 and a second incident surface 12 extending from the first incident surface 11 toward the rear of the lens 1 do.

The first incident surface 11 may be formed to be convex curved toward the rear of the lens 1 and the second incident surface 12 may be formed to be a curved surface whose diameter gradually decreases toward the first incident surface 11 Respectively.

The total reflection portion 20 connects the outer periphery of the emitting portion 30 and the outer periphery of the incident portion 10 and forms a side portion of the lens 1. The diameter of the rear end of the second incident surface 12 may be smaller than the diameter of the outermost portion of the output portion 30 and the total reflection portion 20 connecting the output portion 30 and the incident portion 10 may be formed in the outgoing portion It is possible to form a curved body having a shape gradually increasing in diameter toward the center of the curved surface.

5, the total reflection part 20 reflects light emitted from the first light source 41 and the second light source 42 and incident on the total reflection part 20 into a plurality of facets 31).

The total reflection part 20 is formed with a curvature such that light emitted from the first light source 41 and incident on the total reflection part 20 can be reflected substantially parallel to the optical axis A of the lens 1. For this, the total reflection part 20 may include a parabolic surface focusing on the first light source 41.

5, the first light source 41 and the second light source 42 are provided adjacent to the incidence portion 10 of the lens 1. As shown in FIG. 5 shows an example in which the first light source 41 and the second light source 42 are located outside the lens 1 but the first light source 41 and the second light source 42 At least one may be located within the incidence 10.

The first light source 41 may be located on the optical axis A of the lens 1. [ At the same time, the first light source 41 may be positioned on the focal point of the lens 1.

A part L2 or L3 of light L1, L2, L3 or L4 emitted from the first light source 41 is incident on the first incident surface 11 and passes through the emission unit 30 without passing through the total reflection unit 20. [ Through the facets 31 of the housing. Part of the lights L1, L2, L3 and L4 emitted from the first light source 41 are incident on the second incident surface 12 and totally reflected by the total reflection section 20, Can pass through the facets (31) of the housing (30).

As described above, since the second incident surface 12 forms a curved surface whose diameter progressively decreases toward the first incident surface 11, as shown in FIG. 5, the incident surface 12 is incident on the second incident surface 12, The light L1 and L4 are further refracted toward the outside of the lens 1 and are incident into the lens 1. [ Therefore, the lights L1 and L4 emitted from the first light source 41 can be more efficiently incident on the total reflection section 20. [

The facets 31 of the output section 30 are designed to form a low beam pattern in which light emitted from the first light source 41 passes through each facet 31 to form a cut-off line in front of the vehicle. Therefore, in the vehicle lamp according to the first embodiment of the present invention, the low beam pattern is formed using the facets 31 having independent curvatures and sizes, respectively, without using a separate shield.

5, facets 31a and 31b of at least some of the facets 31 are arranged on the optical axis A of the lens 1 such that light L2 and L3 are emitted downward to form a low beam pattern, As shown in Fig.

6 is a view showing a low beam pattern realized by the first light source of the vehicle lamp according to the first embodiment of the present invention. 6 is a beam pattern expressed on a 25m screen installed in front of the vehicle.

As shown in FIG. 6, each facet 31 is designed to have a curvature, shape, and size so as to refract light of the first light source 41 incident on the facet 31 to be located in the low beam pattern of FIG.

Meanwhile, as shown in FIG. 5, the second light source 42 may be located below the first light source 41. Therefore, the second light source 42 can be positioned below the optical axis A of the lens 1. [

5, a part (L5, L6) of light L5, L6, L7 emitted from the second light source 42 is incident on the first incident surface 11 and passes through the total reflection section 20 It is possible to pass through the facets 31 of the emitting unit 30 without passing through. A portion L7 of the lights L5, L6 and L7 emitted from the second light source 42 is incident on the second incident surface 12 and totally reflected by the total reflection portion 20, Can pass through the facets 31.

The light L7 incident on the second incident surface 12 is further refracted toward the outer side of the lens 1 and is incident into the lens 1. [ Therefore, the light L7 emitted from the second light source 42 can be more efficiently incident on the total reflection section 20. [

When the total reflection part 20 is designed to include a parabolic surface focusing on the first light source 41, the total reflection part 20 of the lights L1, L2, L3 and L4 emitted from the first light source 41 The light beams L5, L6 and L7 emitted from the second light source 42 are totally reflected by the total reflection part 20 by the total reflection part 20, The light L7 can be reflected not in parallel with the optical axis A in most cases.

Each of the facets 31 is designed so that the light emitted from the first light source 41 located on the optical axis A forms a low-beam pattern which forms a cut-off line and is distributed below the cut-off line A part of the light emitted from the second light source 42 located below the optical axis A is irradiated to the upper portion of the cut-off line beyond the cut-off line by the facets 31.

7 is a diagram illustrating a DRL pattern implemented by the second light source of the vehicle lamp according to the first embodiment of the present invention. 7 is a beam pattern expressed on a 25 m screen installed in front of the vehicle.

7, the light emitted from the second light source 42 passes through the lens 1 to form a beam pattern formed on the upper and lower portions of the cut-off line formed in the row beam pattern of FIG. 6 do.

The light emitted from the second light source 42 can be used as a daytime running light (DRL) pattern, that is, a daytime running beam pattern. Or the second light source 42 may be dimmed to use the light emitted from the second light source 42 as the position beam pattern.

According to the light distribution pattern of an automobile, a low beam pattern must have a width ranging from 25L to 25R in a beam pattern irradiated on a screen located 25m ahead. In addition, the beam pattern of the daytime running beam and the position beam pattern must have a width ranging from 20L to 20R in the beam pattern irradiated on the screen located 25m ahead.

Since the width required for the daytime running beam pattern and the position beam pattern low beam pattern is similar to the width required for the low beam pattern, each beam pattern can be formed using the same lens 1.

As shown in FIGS. 6 and 7, it can be seen that the low beam pattern and the daytime traveling beam pattern realized in the vehicle lamp according to the first embodiment of the present invention are satisfied with the light distribution regulations.

In another embodiment, the light emitted from the second light source 42 may be used as a static bendig light (SBL) pattern, a dynamic bending light (DBL) pattern, a cornering beam pattern, a high beam pattern, or the like.

As described above, the vehicle lamp according to the first embodiment of the present invention is provided with a plurality of facets 31 each having a curvature and a size independent from each other in the exit portion 30 of the lens 1, It is possible to irradiate the low beam pattern toward the front of the vehicle.

Further, the same lens 1 can be used to illuminate the front of the vehicle with a static bendig light (SBL) pattern, a dynamic bending light (DBL) pattern, a cornering beam pattern, a daytime running beam pattern, a position beam pattern or a high beam pattern.

Therefore, it is possible to realize a plurality of beam patterns by only the vehicle lamp according to the first embodiment of the present invention, without needing to separately provide lamps for irradiating the respective function-specific beam patterns in the head lamp of the vehicle, Can be implemented.

Hereinafter, a vehicle lamp according to another embodiment of the present invention will be described. For convenience of description, the same reference numerals are used for the components similar to those of the first embodiment, and a description of components common to the first embodiment will be omitted.

FIG. 8 is a front perspective view showing a lens of a vehicle lamp according to a second embodiment of the present invention, FIG. 9 is a plan view showing the lens of FIG. 2, and FIG. 10 is a rear perspective view of the lens of FIG.

The vehicle lamp according to the first embodiment of the present invention is formed such that the facets 31 of the emitting portion 30 are formed so as to have a convex curvature as a whole outward of the lens 1 as shown in Figs. 1 and 2, The vehicle lamp according to the second embodiment of the present invention is formed such that the facets 131 of the emitting portion 130 have a concave curvature toward the inside of the lens 2 as a whole, as shown in Figs.

Alternatively, the facets of the exit portion may include facets having convex curvature, facets having concave curvature, and facets of the plane.

Since the facets of the lens according to the present invention are formed for the purpose of forming a low beam pattern that refracts light emitted from the first light source 41 to form a cut-off line, the light of the first light source 41 Each of the facets can be designed with convex, flat or concave curvatures, since each of the facets can have a respective independent curvature that can form a low beam pattern.

1 and 4, the lens 1 of the lamp for a vehicle according to the first embodiment of the present invention has the outer shape of the emitting portion 30 and the incident portion 10 formed in a circular shape On the other hand, in the lens 2 of the lamp for a vehicle according to the second embodiment of the present invention, as shown in FIGS. 8 and 10, the outer shape of the emitting part 130 and the incident part 110 is formed in an ellipse.

10, the first incidence surface 111 of the incidence portion 110 may also have an elliptical outline, and the second incidence surface 112 may extend toward the first incidence surface 111 It may be formed so as to gradually form a curved shape in which the major axis and the minor axis length of the ellipse become small.

The total reflection part 120 connecting the output part 130 and the incident part 110 can also form a curved surface having a shape in which ellipses having a longer length and a shorter length are gradually stacked toward the output part 130 .

Alternatively, the emitting unit 130 may be formed in an elliptical shape, and the incident unit 110 may be formed in a circular shape. Alternatively, the emitting unit 130 may be formed in a circular shape and the incident unit 110 may be formed in an elliptical shape .

The functions of the facets 131, incidence portion 110 and total reflection portion 120 of the emission portion 130 are the same as or similar to those of the first embodiment except for the above-described shape difference, A low beam pattern formed at the upper and lower portions of the cut-off line of the low beam pattern by transmitting light emitted from the second light source 42 by transmitting light emitted from the light source 41, The driving beam pattern or the position beam pattern is formed in the same manner as the vehicle lamp according to the first embodiment described above.

11 is a front perspective view showing a lens of a vehicle lamp according to a third embodiment of the present invention.

1, the lens 1 of the vehicle lamp according to the first embodiment of the present invention has the outer shape of the emitting portion 30 formed in a circular shape, and in the vehicle 1 according to the second embodiment of the present invention, The lens 2 of the lamp is formed in an elliptical shape in the outline of the output portion 130 as shown in Fig. 8, whereas the lens 3 of the lamp for a vehicle according to the third embodiment of the present invention is formed as shown in Fig. 11 The outgoing portion 230 may be formed to have a rectangular outer shape.

The incident portion 210 may be formed to have a circular outer shape similar to that of the first embodiment, or may have an outer shape of an ellipse similar to that of the second embodiment.

The total reflection part 220 may be formed as a curved surface that connects the outer shape of the quadrangular output part 230 with the outer shape of the circular or elliptical incidence part 210.

The functions of the facets 231, the incidence portion 210 and the total reflection portion 220 of the emission portion 230 are the same as or similar to those of the first and second embodiments except for the above-described shape difference, 3 form a low beam pattern by transmitting the light emitted from the first light source 41 and transmit the light emitted from the second light source 42 to form upper and lower portions of the cut- The high-beam pattern, the daytime running beam pattern, or the position beam pattern is formed in the same manner as the vehicle lamp according to the first and second embodiments described above.

12 is a front view showing a lens of a vehicle lamp according to a fourth embodiment of the present invention, and Fig. 13 is a schematic sectional view taken along the line BB of Fig.

As shown in Figs. 12 and 13, the lens 4 of the lamp for a vehicle according to the fourth embodiment of the present invention has a shape similar to that of a cut diamond.

As shown in FIGS. 12 and 13, the facets 331 and 332 constituting the emitting unit 330 include first facets 331 formed to correspond to the table surface of the cut diamond, And second facets 332 formed to correspond to the facet surfaces formed around the table surface in the first facets. Thus, the second facets 332 may be designed to form an obtuse angle with the first facets 331.

As shown in FIG. 12, the first facets 331 are composed of emitting faces having a triangular or pentagonal outline, and the second facets 332 are composed of emitting faces having a triangular or quadrangular outline . The shapes of the first facets 331 and the second facets 332 shown in Fig. 12 are an example, and the shapes of the first facets 331 and the second facets 332 may be designed in different shapes have.

Similar to the above embodiments, the facets 331 and 332 of the emitting portion 330 transmit light emitted from the first light source 41 to form a low beam pattern or a high beam pattern, and the second light source 42 A static bendig light (SBL) pattern, a dynamic bending light (DBL) pattern, a cornering beam pattern, a high beam pattern, a daytime running beam pattern (DBL) pattern formed at upper and lower portions of a cut-off line of a low beam pattern, Or a position beam pattern, and each facet 331, 332 may be formed of at least one of facets having a convex curvature, facets having concave curvature, and facets of a plane.

13, the lens 4 of the vehicle lamp according to the fourth embodiment of the present invention includes external light L8 incident into the interior of the lens 4 through at least some of the facets 331 and 332, Can be totally reflected within the lens 4 and emitted through the facets 331 and 332 of the output unit 330 again. The external light may be sunlight, light irradiated from another vehicle, light irradiated from a street lamp, and the like.

The total reflection part 320 totally reflects the external light L8 incident into the lens 4 through the facets 331 and 332 at least two times and emits the light through the facets 331 and 332 again.

13, the external light L8 incident into the lens 4 through the facets 331 and 332 is totally reflected by one side of the total reflection part 320 and then reflected by the other side of the total reflection part 320 again And may be output to the outside of the lens 4 through the facets 331 and 332 again.

The lens 4 according to the fourth embodiment of the present invention emits the external light L8 incident into the lens 4 through the facets 331 and 332 through the facets 331 and 332 again, And the effects of the gems are illuminated by the light. Therefore, regardless of whether or not the first light source 41 and the second light source 42 are turned on, the image of the shiny gemstone when observing the vehicle equipped with the lens 4 according to the fourth embodiment of the present invention is observed do.

According to the embodiment, the first facet 331 transmits light emitted from the first light source 41 to form a low beam pattern and transmits light emitted from the second light source 42 to form a cut- A second facet 332 is designed to have a curvature for forming a high beam pattern, a daytime running beam pattern or a position beam pattern formed on the upper and lower sides of the off line, Can be designed to have a curvature that can be totally reflected by the total reflection portion 320 and then emitted again to the second facet 332.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

1, 2, 3, 4: lens
10, 110 and 210:
11: First incident surface
12: second incident surface
20, 120, 220, 320:
30, 130, 230, and 330:
31, 31a, 31b, 131, 231, 331, 332:
41: first light source
42: second light source
A:

Claims (15)

A first light source;
A second light source; And
And a lens for refracting light emitted from the first light source and light emitted from the second light source and irradiating the light toward the front of the vehicle,
The lens,
An incidence portion through which light emitted from the first light source and the second light source is incident; And
And an exit portion through which light of the first light source and the second light source incident on the lens through the incident portion is refracted and emitted,
Wherein the exit portion includes a plurality of facets each having an independent curvature, each of the plurality of facets deflecting light emitted from the first light source to generate a main beam pattern,
The lens,
Further comprising a total reflecting portion provided between the incident portion and the emitting portion,
Wherein the total reflection section comprises:
And a second light source for totally reflecting part of the light emitted from the first light source or the second light source and incident into the lens through the light incidence portion toward the plurality of facets,
Wherein the total reflection section comprises:
The light incident on the total reflection portion of the light emitted from the first light source is reflected parallel to the optical axis of the lens,
Wherein the total reflection section comprises:
And a parabolic surface focusing on the first light source. The method according to claim 1,
Wherein the main beam pattern is a low beam pattern forming a cut-off line. 3. The method of claim 2,
Wherein the facets of at least some of the plurality of facets comprise an inclined surface formed downward toward the front of the vehicle. 3. The method of claim 2,
Wherein the first light source is located on the optical axis of the lens. 5. The method of claim 4,
And the second light source is located below the first light source. 6. The method of claim 5,
Wherein the light emitted from the second light source is refracted by the plurality of facets and forms a beam pattern formed at the top and bottom of the cut-off line. 6. The method of claim 5,
Wherein the beam pattern formed by light emitted from the second light source is at least one of a static bendig light (SBL) pattern, a dynamic bending light (DBL) pattern, a cornering beam pattern, a daytime running beam pattern, lamp. 8. The method of claim 7,
Wherein the second light source is dimming-controlled when a beam pattern formed by light emitted from the second light source is used as the position beam pattern. delete delete The method according to claim 1,
Wherein the exit portion forms a front surface of the lens, the entrance portion forms a rear surface of the lens, and the total reflection portion connects the exit portion and the entrance portion, and forms a side surface of the lens. The method according to claim 1,
Wherein the total reflection section totally reflects external light incident on the inside of the lens through at least a portion of the plurality of facets at least two times inside the lens and out of the vehicle through the plurality of facets. 13. The method of claim 12,
Wherein said plurality of facets comprise exit surfaces formed of at least two types of polygons. The method according to claim 1,
The light-
Wherein the lens is formed so as to gradually decrease in diameter toward the inside of the lens. The method according to claim 1,
Wherein the main beam pattern is a high beam pattern.

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