KR101851363B1 - Optical science device of headlamp - Google Patents

Abstract

The present invention discloses an optical device for a headlamp. The present invention is configured to realize functions of a conventional aspherical lens through a plurality of hemispherical lenses in which combinations are arranged in different directions or in the same direction, The headlamp optical system can be made slimmer, and various designs of headlamps applied to the vehicle can be made possible, and the optical efficiency of the conventional aspherical lens can be improved and the customer satisfaction can be improved.

Description

[0001] Optical apparatus for headlamp [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical apparatus for a headlamp, and more particularly, to an optical apparatus for a headlamp, And to provide an optical apparatus for a headlamp capable of designing and directing.

2. Description of the Related Art Generally, a headlamp for a vehicle is provided with a shield structure for partially limiting a traveling direction of light emitted from a light source and varying a pattern of light irradiated to the front of a vehicle, and the shield structure is provided with various lights such as an upward light or a downward light (Patent Publication No. 10-1997-0010184, published on June 23, 1997), Published Patent Application No. 10-2011-0084786 (Published on July 26, 2011), Published Patent Application No. 10-2012- 0003304 (published on January 10, 2012).

That is, in a conventional headlamp, a shield structure that moves up and down or rotates about a shaft portion is disposed on the front lower side of the lamp in a state where a hemispherical reflector is disposed on the rear side of the lamp, and on the front side of the shield structure When a circular or rectangular aspherical lens is combined, the light source is reflected through the reflector during the emission of the lamp, and the reflected light is irradiated to the front of the vehicle through a circular or square aspheric lens.

However, in the optical device of the conventional headlamp, the light source starting from the focus point has a light path that goes straight after passing through the spherical or aspherical aspherical lens, and its shape is monotonous. Design direction is bound to be limited.

In addition, the conventional aspherical lens has a disadvantage that the injection time for manufacturing the aspherical lens is long and the price rises due to its thickness, and also has a structural disadvantage that the slip-down headlamp can not be applied to the vehicle .

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an aspheric lens, It is an object of the present invention to provide an optical device for a headlamp that can slim down a headlamp optical device to enable various designs of a headlamp to be applied to a vehicle, and improve light efficiency compared to a conventional aspheric lens.

According to an aspect of the present invention, there is provided a headlamp optical apparatus comprising: a light source unit for emitting light; A reflector for reflecting the light emitted from the light source unit to a lens on the front side of the vehicle; A shield structure for guiding light reflected by the reflector to an upper end or a lower end of a front side upper side or a front side of the lens to rotate about a shaft portion to realize a light distribution pattern of a downward light or an upward light; The lens includes a first diffusion lens unit positioned at a front side of the light source unit and having a hemispherical structure for primarily diffusing light guided through the reflector; And a second diffusion lens unit located at a front side of the first diffusion lens unit and collecting light diffused from the first diffusion lens unit and emitting the light to the outside of the vehicle; .

The first diffusion lens unit is a vertical lens having a hemispherical structure for diffusing light guided from the reflector to a first optical path in a left and right direction.

The second diffusion lens unit is a horizontal lens having a hemispherical structure that collects the light diffused from the first diffusion lens unit to the first optical path, diffuses the light into the second optical path in the up-down direction, and outputs the diffused light to the outside of the vehicle.

The first diffusion lens unit is a horizontal lens having a hemispherical structure for diffusing light guided from the reflector into a second optical path in a vertical direction.

The second diffusion lens unit is a vertical lens having a hemispherical structure that collects the light diffused from the first diffusion lens unit to the second optical path and diffuses the light to the first optical path, .

The first diffusion lens unit may include a vertical first and second lenses having a hemispherical structure for diffusing light guided from the reflector into a first optical path in a left and right direction; A third lens disposed between the first lens and the second lens and having a hemispherical structure for diffusing light guided from the reflector into a second optical path in a vertical direction; .

Further, the first and second lenses provide a first focal point that is a true focus with respect to a focus of light blocked by the shield structure, and the third lens has a focal point with respect to a focal point of light blocked by the shield structure Thereby providing a second focal point.

The second diffusion lens unit may include a horizontal lens unit having a hemispherical structure for diffusing light diffused from the first, second, and third lenses in which the vertical and horizontal lenses are combined and diffusing the light to the second optical path, .

The width of the horizontal lens constituting the second diffusion lens unit is equal to or greater than the width of the first, second and third lenses arranged side by side.

The light source unit may be arranged in plural, and the first, second, and third lenses may be disposed on the front side of the light source unit having a plurality of array structures.

The arrangement distance of the third lens and the light source unit is arranged to be closer to the first lens and the light source unit and to a distance shorter than the arrangement distance of the second lens and the light source unit to provide a helix.

The first diffusion lens unit may include fourth and fourth lenses of a horizontal shape having a hemispherical structure for diffusing light guided from the reflector into a second optical path in a vertical direction; And a vertical sixth lens disposed between the fourth and fifth lenses and diffusing light guided from the reflector into a first optical path in a left and right direction; .

Further, the fourth and fifth lenses provide a first focal point that is a true focus with respect to a focus of light blocked by the shield structure, and the sixth lens has a focal point with respect to the focus of light blocked by the shield structure Thereby providing a second focal point.

In addition, the second diffusion lens unit is a vertical lens having a hemispherical structure for irradiating the outside of the vehicle with the first optical path while collecting light diffused from the fourth, fifth, and sixth lenses in which the horizontal and vertical lenses are combined .

Further, the vertical width of the vertical lens constituting the second diffusion lens unit is equal to or larger than the vertical width of the fourth, fifth, and sixth lenses arranged side by side.

The light source unit may be arranged in a plurality of units, and the fourth, fifth, and sixth lenses may be disposed on the front side of the light source unit.

The arrangement distance of the sixth lens and the light source unit is arranged to be close to the distance between the fourth lens and the light source unit and the distance between the fifth lens and the light source unit to provide a helix point.

In addition, the first optical path is a light path in which light is diffused in the left-right direction and light is advanced in the up-down direction.

In addition, the second optical path is an optical path in which light is diffused in the vertical direction and light is straight in the horizontal direction.

In this way, the function of the conventional aspherical lens is realized through a plurality of hemispherical lenses in which arrangement combinations are made in different directions or in the same direction, and the headlamp optical apparatus applied to the vehicle is made slim, It is possible to realize various designs of lamps and to improve the light efficiency and increase the customer satisfaction compared to the conventional aspherical lens.

1 and 2 are perspective views showing a structure of a headlamp optical apparatus according to a first embodiment of the present invention.
3 is a side cross-sectional schematic view showing a state in which light is emitted to the outside of a vehicle through a layout structure of a first diffusion lens unit made up of a vertical lens and a second diffusion lens unit made up of a horizontal lens, according to a first embodiment of the present invention.
4 is a schematic plan view showing a state in which light is emitted to the outside of the vehicle through the arrangement structure of the first diffusion lens unit including the vertical lens and the horizontal diffusion lens unit according to the first embodiment of the present invention.
5 is a side cross-sectional schematic view showing a state in which light is emitted to the outside of the vehicle through a layout structure of a first diffusion lens unit made up of a horizontal lens and a second diffusion lens unit made up of a vertical lens, according to a second embodiment of the present invention.
FIG. 6 is a schematic plan view showing a state in which light is emitted to the outside of the vehicle through a layout structure of a first diffusion lens unit made up of a horizontal lens and a second diffusion lens unit made up of a vertical lens, according to a second embodiment of the present invention.
FIG. 7 is a perspective view illustrating a third embodiment of the present invention. FIG. 7 is a perspective view illustrating a state in which light is emitted to the outside of the vehicle through the arrangement structure of the first diffusion lens unit including a plurality of vertical lenses and one horizontal lens, FIG. 2 is a schematic plan view showing a state in which light is emitted; FIG.
FIG. 8 is a schematic view of a fourth embodiment of the present invention. FIG. 8 is a plan view of a fourth embodiment of the present invention. FIG. 8 is a plan view of a second diffusion lens unit including a first diffusion lens unit in which a plurality of horizontal lenses and a single vertical lens are combined, And FIG.
9 is a measurement screen showing a light distribution pattern according to an arrangement structure of a first diffusion lens unit made up of a vertical lens and a second diffusion lens unit made up of a horizontal lens according to an embodiment of the present invention.
10 is a measurement screen showing a light distribution pattern according to an arrangement structure of a first diffusion lens unit made up of a horizontal lens and a second diffusion lens unit made up of a horizontal lens according to an embodiment of the present invention.
11 is a measurement screen showing a light distribution pattern according to an arrangement structure of a first diffusion lens unit in which a vertical lens and a horizontal lens are combined and a second diffusion lens unit in a horizontal lens, according to an embodiment of the present invention.
Fig. 12 (a) is a light distribution pattern measurement screen of a headlamp to which a conventional aspheric lens is applied, and Fig. 12 (b) is a light distribution pattern measurement screen of a headlamp to which a diffusion lens unit combining a horizontal type and a vertical type lens is applied.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, it should be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification.

In this specification, the terms "comprises" or "having ", and the like, specify that the presence of stated features, integers, steps, operations, elements, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

In addition, the embodiments described herein will be described with reference to cross-sectional views and / or plan views, which are ideal illustrations of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for an effective description of the technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but may include variations in shapes that are created or required according to the manufacturing process. For example, the area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have schematic attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the apparatus and are not intended to limit the scope of the invention.

Like reference numerals refer to like elements throughout the specification. Accordingly, although the same reference numerals or similar reference numerals are not mentioned or described in the drawings, they may be described with reference to other drawings. Further, even if the reference numerals are not shown, they can be described with reference to other drawings.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 and 2 are perspective views showing a structure of a headlamp optical apparatus according to a first embodiment of the present invention. FIG. 3 is a cross-sectional view of a headlamp optical apparatus according to a first embodiment of the present invention, FIG. 4 is a cross-sectional schematic view showing a state in which light is emitted to the outside of the vehicle through the arrangement structure of the second diffusion lens unit. FIG. 4 shows a first embodiment of the present invention, FIG. 2 is a schematic plan view showing a state in which light is emitted to the outside of the vehicle through the arrangement structure of the second diffusion lens unit.

1 to 4, a headlamp optical apparatus according to a first embodiment of the present invention includes a light source unit 10, a reflector 20, a shield structure 30, and a lens replacing a conventional aspherical lens And the first and second diffusion lens units 40 and 50 as shown in FIG.

The light source unit 10 irradiates light upwardly or downwardly, and an LED lamp is mounted on the substrate (not shown). That is, the LED lamp mounted on the substrate is configured to emit light upward or downward within a certain angle range.

The reflector 20 is disposed at an upper end or a lower end of the light source unit 10 and reflects upward or downward light from the light source unit 10 to the first diffusion lens unit 40 will be.

The shield structure 30 guides the light reflected through the reflector 20 to the upper end or the upper end and the lower end of the first diffusion lens unit 40 to realize a light distribution pattern of a downward light distribution pattern or an upward light To this end, the shield structure 30 is not shown in the drawing, but is typically rotated around the shaft as the drive unit (not shown) is driven.

The first diffusion lens unit 40 is located on the front side of the light source unit 10 and primarily diffuses the light guided through the reflector 20 to the second diffusion lens unit 50, This is one vertical lens that has a hemispherical structure that diffuses the light guided from the reflector 20 to the first optical path in the left and right direction.

The second diffusion lens unit 50 is located on the front side of the first diffusion lens unit 40 and collects the light diffused from the first diffusion lens unit 40 and emits the light to the outside of the vehicle. And is a horizontal lens having a hemispherical structure that collects the light diffused from the first diffusion lens unit 40 to the first light path, diffuses the light into the second light path in the up-and-down direction, and outputs the light to the outside of the vehicle.

Here, the first diffusion lens unit 40 may include a plurality of vertical lenses having a hemispherical structure. In the first optical path, light is diffused in the left-right direction and light is guided straight in the up- And the second optical path explains an optical path in which light is diffused in the vertical direction and light is straight in the left and right direction.

In the meantime, the first diffusion lens unit 40 will be described as a hemispherical vertical lens, and the second diffusion lens unit 50 will be described as a hemispherical horizontal lens because a cylindrical lens is divided into two equal parts And the first and second diffusing lens units 40 and 40 (hereinafter, referred to as " first and second diffusing lens units ") according to the embodiment of the present invention 50 can replace the conventional aspherical lens, the injection time can be reduced while reducing the thickness of the lens, and the manufacturing cost of the lens can be reduced.

As described above, the headlamp optical apparatus according to the first embodiment of the present invention can replace the conventional aspherical lens while arranging the horizontal lens and the vertical lens having the semi-cylindrical structure on the front and rear sides, The optical device of the headlamp according to the first embodiment of the present invention operates a switch such as an upward light or a downward light to implement a light distribution pattern such as an upward light or a down light during driving .

Power is supplied to the LED lamp mounted on the substrate constituting the light source unit 10 in accordance with the operation signal of the switch and the shield structure 30 is rotated by the driving unit so that the shield structure 30 is part of the reflector 20 As shown in FIG.

The light emitted from the LED lamp and reflected through the reflector 20 is condensed on a first focal point P1 which is a true focal point and condensed, (d1).

At this time, light incident on one surface (d1) of the first diffusion lens unit (40) is emitted to the first light path through the other surface opposite to the surface (d1), that is, a hemispherical curved surface (d2) will be.

That is, when light is incident on one surface d1 of the first diffusion lens unit 40 in which the hemispherical structure is erected in the vertical direction, the incident light is diffused in the left and right direction on the curved surface d2 of the other surface, It has a straight line.

The curved surface d2 of the first diffusion lens unit 40 is formed on one surface d11 of the second diffusion lens unit 50 which is a hemispherical structure positioned at the front end of the first diffusion lens unit 40, The light from the second diffusion lens unit 50, that is, the curved surface d12, is emitted to the outside of the vehicle while diffusing the light in the vertical direction, The light distribution pattern of the downward light or the upward light can be realized in front of the vehicle.

Here, the light distribution pattern of the downward light or the upward light can be achieved through the rotation control of the shield structure 30.

The path of the light incident on one surface d1 of the first diffusion lens unit 40 is determined according to the rotation angle of the shield structure 30 and the curved surface of the first diffusion lens unit 40 a light distribution pattern such as a downward direction is implemented when light incident on one surface d11 of the second diffusion lens unit 50 through the first diffusion surface d1 and the second diffusion lens unit d2 is incident on a lower end portion of the one surface d11, The light distribution pattern of the upward light is realized when the light is incident on the entire upper surface, that is, the entire surface d11, and the description of the specific embodiments will be omitted.

5 and 6 illustrate a second embodiment of the present invention in which the first diffusion lens unit 40 is a horizontal lens having a hemispherical structure and the second diffusion lens unit 50 is a hemispherical structure As shown in FIG.

That is, the second embodiment of the present invention comprises the first diffusion lens section 40 as a horizontal lens having a hemispherical structure that diffuses the light guided from the reflector 20 by the second optical path in the vertical direction, The second diffusion lens unit 50 is a vertical lens having a hemispherical structure that collects the light diffused from the first diffusion lens unit 40 to the second optical path, and diffuses the light to the first optical path in the left- The same parts as those in the first embodiment of the present invention will be denoted by the same reference numerals and the duplicated description will be omitted.

7 is a third embodiment of the present invention in which the first diffusion lens unit 40 is constructed by combining a plurality of vertical lenses and a single horizontal lens having a hemispherical structure, The lens unit 50 is arranged as one horizontal lens having a hemispherical structure.

That is, the third embodiment of the present invention includes vertical first and second lenses 41 and 42 forming a hemispherical structure for diffusing light guided from the reflector 20 into a first optical path in the left and right direction, The third lens 43 is disposed between the first and second lenses 41 and 42 and has a hemispherical structure for diffusing the light guided from the reflector 20 into the second optical path, The first diffusing lens unit 40 is arranged in a line in the vertical direction and the horizontal direction and collects the light diffused from the first, second and third lenses 41, 42 and 43, And the second diffusion lens unit 50 is constructed as a horizontal lens having a hemispherical structure that emits light to the outside of the vehicle while diffusing the light into the second optical path in the direction of the second optical path.

In this case, the first and second lenses 41 and 42 provide a first focal point P1 that is a true focus with respect to a focus of light blocked by the shield structure 30, 43 provide a second focal point P2 which is a focal point with respect to the focal point of the light blocked by the shield structure 30. The third focal point P2 provides a focal point of the third lens 43 and the light source unit 10 The arrangement distance is set closer to the arrangement distance of the first lens 41, the light source 10, and the second lens 42 than the arrangement distance of the light source 10.

The right and left widths of the horizontal lenses constituting the second diffusion lens unit 50 may be equal to or greater than the left and right widths of the first, second, and third lenses 41, 42, and 43 The first, second, and third lenses 41, 42, and 43 are arranged in the front side of the light source unit 10 having a plurality of array structures, .

7, the first and second lenses 41 and 42 constituting the first diffusion lens unit 40 are arranged such that the light incident on one surface d1 of the first diffusion lens unit 40 Light is diffused in the first light path, that is, in the left-right direction, to one surface d11 of the second diffusion lens unit 50 through the curved surface d2, and light having straightness is irradiated in the up-down direction.

On the other hand, the third lens 43 constituting the first diffusing lens unit 40 is configured such that the light incident on the first surface d1 is incident on one surface d11 of the second diffusing lens unit 50 through the curved surface d2, The light is diffused in the up and down direction while diffusing the light, and the light having directivity is irradiated in the left and right directions.

The light incident on one surface d11 of the second diffusion lens unit 50 is diffused upward and downward through the curved surface d12 and emitted to the outside of the vehicle as well as light having a straight- The light efficiency of the light emitted through the conventional aspherical lens can be improved while being emitted to the outside of the vehicle.

The same parts as in the first embodiment of the present invention will be denoted by the same reference numerals, and redundant description thereof will be omitted.

8 is a fourth embodiment of the present invention in which the first diffusion lens unit 40 is constructed by combining a plurality of horizontal lenses and a vertical lens having a hemispherical structure, The lens unit 50 is arranged as a vertical lens having a hemispherical structure.

That is, the fourth embodiment of the present invention includes the fourth and fifth lenses 44 and 45 having a hemispherical structure for diffusing light guided from the reflector 20 into a second optical path in the vertical direction, A vertical sixth lens 46 is disposed between the fourth and fifth lenses 44 and 45 to diffuse the light guided from the reflector 20 to the first optical path in the left and right direction, The first diffusing lens unit 40 is arranged in a row in a row, and the light diffused from the fourth, fifth, and sixth lenses 44, 45, and 46, The second diffusion lens unit 50 is configured as a vertical lens having a hemispherical structure that diffuses light to the outside of the vehicle while diffusing the light into the first optical path in the direction of the first optical path.

In this case, the fourth and fifth lenses 44 and 45 provide a first focal point P1 that is a true focus with respect to the focus of light blocked by the shield structure 30, 46 provide a second focal point P2 which is a focal point with respect to the focal point of the light blocked by the shield structure 30 and includes a sixth lens 46 providing a focal point, The arrangement distance is set closer to the arrangement distance of the fourth lens 44, the light source 10 and the fifth lens 45 than the arrangement distance of the light source 10.

The vertical width of the vertical lens constituting the second diffusion lens unit 50 is equal to or larger than the vertical width of the fourth, fifth, and sixth lenses 44, 45, And 45, 46 are arranged on the front side of the light source unit 10 constituting a plurality of arrangement structures, and the light source unit 10, .

That is, in the fourth embodiment of the present invention, as shown in FIG. 8, the fourth and fifth lenses 44 and 45, which constitute the first diffusion lens unit 40, Light is diffused in the second light path, that is, in the vertical direction, to the one surface d11 of the second diffusion lens unit 50 through the curved surface d2, and light having straightness in the left and right direction is irradiated.

On the other hand, the sixth lens 46 constituting the first diffusion lens unit 40 receives light incident on one surface d1 of the second diffusion lens unit 50 through a curved surface d2, The light is diffused in the first light path, that is, in the left-right direction, while the light having directivity is irradiated in the up-down direction.

The light incident on one surface d11 of the second diffusion lens unit 50 is diffused in the right and left direction through the curved surface d12 and emitted to the outside of the vehicle as well as light having directivity in the up and down direction The light efficiency of the light emitted through the conventional aspherical lens can be improved while being emitted to the outside of the vehicle.

The same parts as in the second embodiment of the present invention will be denoted by the same reference numerals, and redundant description thereof will be omitted.

9 attached herewith shows that when the first diffusion lens section 40 is arranged as a vertical lens and the second diffusion lens section 50 is composed of a horizontal lens and arranged in the first embodiment of the present invention, And the light distribution pattern of the light emitted to the outside of the vehicle is measured.

10A and 10B show light distribution patterns of light emitted to the outside of the vehicle when the first and second diffusion lens units 40 are each formed by a horizontal lens.

11, the first diffusion lens unit 40 is arranged in a combination of a vertical lens and a horizontal lens having a hemispherical structure, and the second diffusion lens unit 50 is composed of a horizontal lens having a hemispherical structure, And a light distribution pattern of light emitted to the outside of the vehicle.

12 is a view showing a light distribution pattern of light emitted to the outside of the vehicle according to the arrangement of the conventional aspheric lens and the lens according to the embodiments of the present invention, that is, the first and second diffusion lens units 40 and 50 12A is a light distribution pattern measurement screen of a headlamp to which a conventional aspheric lens is applied and FIG. 12B is a light distribution pattern measurement screen of a headlamp to which a diffusion lens unit in which a horizontal type and a vertical type lens are combined is applied, The light of the first and second diffusion lens units 40 and 50 according to the embodiments of the present invention in which a horizontal lens and a vertical lens that form a hemispherical structure are combined when the light efficiency of light through the aspherical lens is about 40% The efficiency was improved to 46%.

While the present invention has been described in connection with the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is to be understood that such changes and modifications are within the scope of the claims.

10; A light source 20; Reflector
30; Shield structure 40; The first diffusion lens unit
41, 42, 43; First, second and third lenses 45, 46, 47; Fourth, fifth and sixth lenses
50; A second diffusion lens unit P1; The first focal point
P2; Second focus portions d1 and d11; One side
d2, d12; Curved surface

Claims (19)

A light source unit for irradiating light; A reflector for reflecting the light emitted from the light source unit to a vehicle front-side lens; A shield structure for guiding light reflected through the reflector to an upper end of the lens front side or an upper end and a lower end of the front side to rotate about the shaft to realize a light distribution pattern of a downward light or an upward light; Wherein the lens has a hemispherical structure for diffusing light guided through the reflector, the hemispherical structure being disposed at a front side of the light source unit; And a second diffusion lens unit located at a front side of the first diffusion lens unit and having a hemispherical structure for collecting light diffused from the first diffusion lens unit and emitting the light to the outside of the vehicle; , ≪ / RTI >
Wherein the first diffusion lens unit is a hemispherical structure for diffusing light guided from the reflector into a first optical path in the left and right direction, Type first and second lenses; And a hemispherical structure disposed between the first and second lenses and diffusing light guided from the reflector into a second optical path in a vertical direction, wherein a second focus, which is a focal point with respect to a focus of light blocked by the shield structure, A third lens of a horizontal shape providing a part; Are arranged in a line,
Wherein the light source units are arranged in a plurality and the first, second, and third lenses are disposed on the front side of the light source unit having a plurality of arrangement structures. delete delete delete delete delete delete The method according to claim 1,
The second diffusion lens unit includes a horizontal lens having a hemispherical structure for diffusing light diffused from the first, second and third lenses, which are combined with each other in vertical and horizontal directions, and diffusing the light into a second optical path, And an optical system for the head lamp. 9. The headlamp according to claim 8, wherein the lateral width of the horizontal lens forming the second diffusion lens unit is equal to or larger than the lateral width of the first, . delete The light source unit according to claim 1, wherein the arrangement distance of the third lens and the light source unit is arranged to be closer to the first lens and the light source unit, and to a distance shorter than the arrangement distance of the second lens and the light source unit, The optical device of the lamp. A light source unit for irradiating light; A reflector for reflecting the light emitted from the light source unit to a vehicle front-side lens; A shield structure for guiding light reflected through the reflector to an upper end of the lens front side or an upper end and a lower end of the front side to rotate about the shaft to realize a light distribution pattern of a downward light or an upward light; Wherein the lens has a hemispherical structure for diffusing light guided through the reflector, the hemispherical structure being disposed at a front side of the light source unit; And a second diffusion lens unit located at a front side of the first diffusion lens unit and having a hemispherical structure for collecting light diffused from the first diffusion lens unit and emitting the light to the outside of the vehicle; , ≪ / RTI >
Wherein the first diffusion lens unit has a hemispherical structure for diffusing light guided from the reflector into a second optical path in an up and down direction, the first diffusing lens unit having a horizontal shape that provides a first focal point that is a true focus with respect to a focus of light blocked by the shield structure The fourth and fifth lenses of the lens; And a hemispherical structure disposed between the fourth and fifth lenses and diffusing light guided from the reflector into a first optical path in a left and right direction, wherein a second focus, which is a focal point with respect to a focus of light blocked by the shield structure, A sixth lens of a vertical type providing a part; Are arranged in a line,
Wherein the light source units are arranged in a plurality and the fourth, fifth and sixth lenses are arranged on the front side of the light source unit having a plurality of arrangement structures. delete 13. The method of claim 12,
And the second diffusion lens unit is a vertical lens having a hemispherical structure that irradiates the light to the outside of the vehicle through the first optical path while collecting the light diffused from the fourth, fifth, and sixth lenses, Of the headlamp. 15. The headlamp according to claim 14, wherein a vertical width of the vertical lens forming the second diffusion lens unit is equal to or larger than a vertical width of the fourth, fifth, Device. delete 13. The apparatus according to claim 12, wherein the arrangement distance of the sixth lens and the light source unit is arranged to be close to the distance between the fourth lens and the light source unit, and the fifth lens and the light source unit, The optical device of the lamp. 13. The method according to claim 1 or 12,
Wherein the first optical path is an optical path in which light is diffused in the left-right direction and the light advances in the up-down direction. 13. The method according to claim 1 or 12,
Wherein the second optical path is an optical path in which light is diffused in the vertical direction and light is straight in the left and right direction.

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