KR20190025206A - Lamp for vehicle - Google Patents

Abstract

A vehicle lamp module according to an embodiment of the present invention includes: a first light source unit including a first light source, a first lens through which light emitted from the first light source is transmitted and which has a first optical axis, and a first optical element controlling at least a part of light emitted from the first light source to be incident on the first lens; a second light source unit including a second light source, a second lens through which light emitted from the second light source is transmitted and which has a second optical axis, and a second optical element controlling at least a part of light emitted from the second light source to be incident on the second lens; and a projection lens disposed in common in front of the first light source unit and the second light source unit, the light transmitted through the first lens and the second lens being incident to illuminate a road surface pattern in front of the vehicle, and having a central axis. The first optical axis or the second optical axis can be aligned so as not to intersect the central axis of the projection lens.

Description

Lamp for vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a headlamp for a vehicle, and more particularly to a lamp for a vehicle in which a plurality of lenses are arranged in the light traveling direction.

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.

Generally, the vehicle is equipped with various kinds of lamps having a lighting function for easily confirming an object located in the vicinity of the vehicle at nighttime driving, and a signal function for notifying other vehicle or road users of the running state of the vehicle.

For example, a head lamp and a fog lamp mainly for lighting function, a turn signal lamp for a signal function, a tail lamp, a brake lamp, a side marker and the like are provided. It is stipulated by law as to the installation standard and specification so that each function is fully exercised.

A headlamp that forms a low beam pattern or a high beam pattern so as to ensure the forward visibility of the driver during nighttime driving of a vehicle lamp plays a very important role in safety operation.

A conventional automotive lamp comprises a light source module, a shield member and a lens.

The light source module includes a light source that emits light, and a reflector that reflects the light emitted from the light source and irradiates the light toward the lens.

Accordingly, the light generated from the light source is reflected forward by the reflector, the light reflected by the reflector is projected through the lens while being at least partially blocked by the shield member, and the light blocked by the shield member is reflected So that a low beam pattern is formed.

Korean Patent Publication No. 2015-0052638

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lamp for a vehicle in which a plurality of lamp modules are disposed.

In particular, the vehicle lamp module is to provide a lamp for a vehicle which can be recognized as a single light source unit.

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.

In the vehicle lamp module according to the embodiment of the present invention, the lamp module for a vehicle includes a first light source, a first lens through which light emitted from the first light source is transmitted and has a first optical axis, A first light source unit including a first optical element for controlling at least a part of light to be incident on the first lens; A second lens that transmits light emitted from the second light source and has a second optical axis, and a second optical element that controls at least a part of the light emitted from the second light source to be incident on the second lens, A second light source unit including the light source unit; And a second light source unit which is disposed in common in front of the first light source unit and the second light source unit, the light transmitted through the first lens and the second lens is incident to illuminate a road surface pattern in front of the vehicle, Wherein the first optical axis or the second optical axis can be aligned so as not to intersect the central axis of the light projecting lens.

According to the headlamp for a vehicle according to the embodiment of the present invention, an efficient beam pattern can be formed by using a plurality of lenses arranged along the light traveling direction.

Further, by disposing the light transmitting lens in front of a plurality of light sources, there is an effect that a plurality of light source units can be recognized as one.

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 perspective view of a vehicle lamp according to an embodiment of the present invention.
2 is a top view of a vehicle lamp according to an embodiment of the present invention.
3 is a view showing vertical and horizontal cross-sections of a light transmitting lens of a vehicle lamp according to an embodiment of the present invention.
4 is a view showing an optical path formed by a plurality of conventional lenses.
5 is a view showing an optical path formed by a plurality of lenses according to an embodiment of the present invention.
6 is a side sectional view of a lamp module for a vehicle according to the present invention showing a light path.
7 is a view showing the optical path of a lamp for a vehicle according to the present invention.
8 is a view showing the optical path of a lamp for a vehicle according to another embodiment of the present invention.
9 is a view showing an optical path of a lamp for a vehicle according to another embodiment of the present invention.
10 is a view showing a beam pattern of a vehicle lamp according to another embodiment of the present invention.
11 and 12 are views showing a plurality of lamp modules according to an embodiment of the present invention.
13 is a diagram illustrating a plurality of lamp modules according to an embodiment of the present invention.
14 is a view showing a beam pattern irradiated from a plurality of light source units according to an embodiment of the present invention.

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 being 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 concept 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.

Thus, in some embodiments, well known process steps, well-known structures, and well-known techniques are not specifically described to avoid an undue interpretation of the present invention.

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. It should be understood that the terms comprising and / or comprising the terms used in the specification do not exclude the presence or addition of one or more other components, steps and / or operations other than the stated components, steps and / . And "and / or" include each and any combination of one or more of the mentioned items.

Further, the embodiments described herein will be described with reference to the perspective view, cross-sectional view, side view, and / or schematic views, which are ideal illustrations of the present invention. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Therefore, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the forms that are generated according to the manufacturing process. In addition, in the respective drawings shown in the embodiments of the present invention, the respective constituent elements may be somewhat enlarged or reduced in view of convenience of description.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a vehicle lamp module and a vehicle headlamp according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a preferred embodiment of a lamp module for a vehicle, FIG. 2 is a top view according to an embodiment of the present invention, and FIG. 3 is a side sectional view of a lamp module for a vehicle according to an embodiment of the present invention.

1 to 3, a vehicular lamp module according to an embodiment of the present invention includes a plurality of light source units.

The plurality of light source units includes a first light source unit 100 and a second light source unit 200, and each light source unit is configured as follows.

The first light source unit 100 includes a first lens 140 and a first light source 110 through which light emitted from the first light source 110 and the first light source 110 is transmitted and includes a first optical axis Ax1, And a first optical element 120 for controlling at least a part of light emitted from the first lens 140 to be incident into the first lens 140.

The second light source unit 200 includes a second lens 240 and a second light source 210 that transmit light emitted from the second light source 210 and the second light source 210 and include a second optical axis Ax2, And a second optical element 220 for controlling at least a part of the light emitted from the second lens 240 to be incident into the second lens 240

Further, the vehicular lamp module is disposed in common in front of the plurality of light source units, and the light transmitted from each light source unit is incident and emitted to form a beam pattern on the road surface in front of the vehicle, and a central axis Ax , And the first optical axis Ax1 or the second optical axis Ax2 is aligned so as not to intersect with the center axis Ax of the projection lens.

The lamp module for a vehicle according to an embodiment of the present invention aims at a slim and miniaturized lamp module while forming a main beam pattern such as a low beam and a high beam. In the first lens 140 and the second lens 240 of the present invention, Is formed to have a size of about 20 mm in width and 20 mm in length. Therefore, in order to have optical performance satisfying the main beam pattern, a plurality of units can not be used. If a main beam pattern is formed by one optical unit, a light quantity of a high light intensity must be used for the light source, and thus the entire optical system must be large, and heat radiation is also difficult. However, the lamp module for a vehicle of the present invention has the effect of forming a miniaturized module having a light performance satisfying the main beam pattern by using a plurality of miniaturized light source units, excellent heat dissipation, and excellent in design.

Further, the vehicular lamp module according to the embodiment of the present invention has the effect of allowing a plurality of light source units to be recognized as one by arranging the light transmission lens 710 in front of a plurality of light sources, It is effective.

In the vehicle lamp module according to the embodiment of the present invention, the first optical axis Ax1 or the second optical axis Ax2 is formed so as not to intersect with the central axis Ax of the light transmitting lens at any point, The diffusion pattern can be formed most efficiently and the light emitting surface can be uniformly seen from the front, improving the lighting image and preventing the optical system from being damaged due to heat being condensed at a certain position.

At least one of the first lens unit 140 and the second lens unit 240 may be a light source unit of the first lens 140 or the second lens 240, And a shield extending from the rear focal point. The vehicle lamp module according to the embodiment of the present invention shows that the first light source unit 100 and the second light source unit 200 include the first shield 130 and the second shield 230, respectively. Also, depending on the shape of the vehicle, such a shield may be formed so as to extend downward from the initial position.

The first shield 130 and the second shield 230 each have a cutoff forming portion for forming a cutoff line at the front end thereof and a reflecting portion extending backward from the cutoff forming portion. At this time, the reflection portion of the first shield 130 is formed to have a smaller area than the reflection portion of the second shield 230.

Since the vehicle lamp module according to the embodiment of the present invention includes the shields of the respective optical units, the beam patterns formed in the plurality of optical units can overlap to form a low beam. At this time, the first optical unit 100 irradiates the high luminous intensity region in the low beam, and the second optical unit 200 irradiates the diffusion region. Therefore, the higher the amount of light irradiated by the first optical unit 100, the better the efficiency. Thus, it is natural that the larger the area of the shield reflection portion, the better the light efficiency. However, since the beam pattern has different criteria for satisfying the light distribution per country, it is not merely advantageous that the spot module has a high light efficiency for common use. Therefore, the lamp module for a vehicle of the present invention has an effect that it can be controlled by adjusting the reflector area of the shield.

Further, the vehicle lamp module according to the embodiment of the present invention includes a light projecting lens 710, and the light projecting lens 710 is convex on the vertical vertical section of the vehicle lamp module, as shown in the side sectional view of Fig. 3, And forms a curvature so as to have a convex shape forward of the vehicle on the BB horizontal section of the lamp module for a vehicle. Therefore, the projection lens 710 of the present invention satisfies the optical function while allowing a plurality of lamp units to be recognized as a single curved surface at the front. 3 (a) is a view showing a B-B horizontally sectioned projection lens 710, and FIG. 3 (b) is a view showing a vertical projection section 710 of a projection lens 710

The first lens 140 and the second lens 240 are formed of a convex lens including an incident surface and an exit surface, and the first lens 140 has a curvature of the exit surface with respect to the first optical axis Ax1 This asymmetry is achieved. This is to form a parallel light when the light emitted from the first lens 140 and incident on the projection lens is emitted from the projection lens.

The exit surface of the second lens 240 is formed to be symmetrical with the exit surface of the first lens 140 with respect to the central axis Ax3 which is the geometric axis of the light transmitting lens.

4 and 5 are schematic views of a first lens 140 and a second lens 240 and a projection lens constituting a lamp module for a vehicle according to the present invention. Through the first lens 140 and the second lens 240, It is possible to know the optical correlation between the projection lens 240 and the projection lens. Accordingly, FIGS. 4 and 5 are for explaining the shapes of the first lens and the second lens of the present invention. The plurality of light paths described in FIGS. 4 and 5 are substantially caused by the vehicle lamp of the present invention Is not a light path.

FIG. 4 is a sectional view of a conventional first lens 800a and a conventional second lens 800b when symmetrical about the optical axis Ax3 of the conventional first lens 800a and the conventional second lens 240 light- 5 is a schematic view showing the optical correlation between the projection lens of the second lens 240 and the projection lens of the second lens 240 in the case where the exit surface of the first lens 140 is asymmetric, Ax of the first lens 140 and the second lens 240 when the first lens 140 and the second lens 240 are symmetrical with respect to the optical axis Ax.

As shown in FIG. 4, the conventional first lens 800a and the conventional second lens 800b are made up of aspheric lenses symmetrical about the optical axes Ax1 and Ax2 to emit parallel light. It can be seen that the parallel light is incident on and emitted from the light transmitting lens and the light beam is diffused to both sides. Since these light beams are unsuitable for forming the main beam pattern, it is preferable that the first lens 140 and the second lens 240 have asymmetric curvature of the exit surface with respect to the optical axes Ax1 and Ax2. When the curvature of the exit surface is formed asymmetrically with respect to the optical axis of each of the first lens 140 and the second lens 240, the exit surface of the first lens 140 has the first optical axis Ax1 A first surface 142 formed on the outside of the vehicle lamp module and a second surface 144 formed on the inside of the lamp module for a vehicle, the curvature of the first surface 142 being greater than the curvature of the second surface 144 ). This is because, as shown in FIG. 4, the light beam is further diffused toward the both ends of the projection lens 710. That is, by making the curvature of the first surface 142 larger than the curvature of the second surface 144, the light L1 emitted from the first surface 142 is deflected toward the first optical axis Ax1 By entering the projection lens 710, the light L2 emitted from the projection lens forms a parallel light.

The exit surface of the first lens 140 is symmetrical with respect to the central axis Ax of the light transmitting lens 710 of the second lens 240 so that the exit surface of the second lens 240 has the second optical axis Ax2 A first surface 242 formed on the outside of the vehicle module and a second surface 244 formed on the inside of the lamp module for a vehicle and having a curvature of the first surface 242, Is formed larger than the curvature. This is because, as described above, the light beam is more diffused toward the both ends of the light projecting lens 710. That is, by forming the curvature of the second lens first surface 240 larger than the curvature of the second surface 244, the light emitted from the first surface 242 is deflected toward the second optical axis Ax2, By entering the lens 710, the light emitted from the projection lens 710 forms parallel light.

The exit surface curvature of the first lens 140 and the second lens 240 is related to the curvature of the light transmitting lens and may be changed according to the vertical or horizontal curvature of the light transmitting lens 710.

6 shows a light path in a side sectional view of a lamp module for a vehicle of the present invention, in which light transmitted through a projection lens is emitted in parallel.

The first optical element 100 and the second optical element 200 in the lamp module for a vehicle according to the embodiment of the present invention are formed of a first reflector 120 and a second reflector 240 having reflection surfaces formed therein . 7 to 9 are a top view and an optical view of an optical system in which the lamp module according to the embodiment of the present invention is formed by the first optical element and the second optical element formed by the first reflector 120 and the second reflector 240, Respectively.

7 shows a first embodiment in which the first reflector 120 is formed as a reflective surface with an ellipse as a base and the second reflector 220 is formed as a reflective surface based on a parabola. Therefore, the first reflector 120 is formed as a reflecting surface having an ellipse serving as a light collecting function, so that light from the first light source 110 can be condensed toward the rear focal point of the first lens 140 And the condensed light is incident on the first lens 140. The light emitted from the first lens 140 is incident on the projection lens and emitted as parallel light, thereby forming a high luminous intensity region in the low beam pattern.

On the other hand, the second reflector 220 is formed as a reflective surface based on a parabola serving to reflect light in parallel so that light from the first light source 110 is incident on the second lens 240 in parallel And the light incident in parallel forms a light beam passing through the second lens 240 and the projection lens 710 and intersecting with each other. Such a light beam forms a diffusion pattern formed on both sides of the high luminous intensity region of the low beam pattern.

8 shows a second embodiment in which each of the first reflector 120 and the second reflector 220 is formed as a different reflection surface with respect to the first optical axis Ax1 and the second optical axis Ax2 will be. The first reflector 120 and the second reflector 220 are respectively disposed on the first reflector 120a and the second reflector 220a disposed on the outside of the vehicle lamp module with the first optical axis Ax1 and the second optical axis Ax2 as the center, And a second reflecting surface 120b, 220b disposed inside the lamp module for a vehicle. The first reflection surfaces 120a and 220a are formed as reflection surfaces based on a parabolic curve and the second reflection surfaces 120b and 220b are formed as reflection surfaces based on an ellipse. The first reflecting surfaces 120a and 220a and the second reflecting surfaces 120b and 220b are integrally formed.

A part of the light emitted from the first light source 110 in the first optical unit 100 is incident on the first reflection surface 120a and the other part is incident on the second reflection surface 120b. The light from the first light source 110 is reflected parallel to the first lens 140 and is incident on the first surface 142 of the first lens 140 The light is deflected toward the first optical axis Ax1 by the curvature of the first surface 142 and deflected again by the light transmitting lens 710 to form a diffusion pattern formed on one side of the high light intensity pattern.

The light from the first light source 110 is condensed in the vicinity of the rear focus of the first lens 140 and is incident on the first lens 140, The light emitted from the first surface 142 of the light source 140 forms parallel light, thereby forming a high intensity pattern in the low beam pattern.

A part of the light emitted from the second light source 210 in the second optical unit 200 is incident on the first reflection surface 220a and the other part is incident on the second reflection surface 220b. The light from the second light source 210 is reflected in parallel and enters the second lens 240 and is incident on the first surface 242 of the second lens 240 The light is deflected toward the second optical axis Ax2 by the curvature of the first surface 242 and deflected again by the projection lens to form a diffusion pattern on the other side of the high intensity pattern.

That is, the first optical unit 100 and the second optical unit 200 form a diffusion pattern on the road surface that crosses the direction in which the light is incident through the first reflection surfaces 120a and 220a, A high light intensity pattern can be formed through the first and second light emitting portions 120b and 220b to form an overall low beam pattern.

9 shows a third embodiment in which a second reflecting surface formed at each of the first reflector 120 and the second reflector 220 has a reflecting surface based on an ellipse and a parabola. Therefore, the second reflection surface of each of the first reflector 120 and the second reflector 220 is formed of a reflection surface based on a parabola and a reflection surface based on an ellipse, and a reflection surface based on an ellipse is a parabola It can be positioned on the second reflection surface in front of the reflection surface serving as the base.

Accordingly, a part of the light emitted from the first light source in the first optical unit 100 is incident on the reflecting surface based on the parabolic curve of the second reflecting surface 120b, and the other part is reflected by the reflecting surface . The light from the first light source 110 is reflected in parallel and enters the first lens 140 as described above, and the light from the first lens 140 The light is deflected toward the first optical axis Ax1 by the curvature of the first surface 142 and is deflected again by the projection lens 710 to form a diffusion pattern formed on one side of the high light intensity pattern .

Light from the first light source 110 is condensed in the vicinity of the rear focal point of the first lens 140 and incident on the first lens 140 to be incident on the reflection surface based on the ellipse, The light emitted from the first surface 142 of the light source 140 forms parallel light, thereby forming a high intensity pattern in the low beam pattern (ellipses and parabola)

A part of the light emitted from the second light source 210 in the second optical unit 200 is incident on a reflection surface based on an ellipse and a parabola of the second reflection surface 220b and the other part is incident on a reflection surface based on an ellipse, . The light from the second light source 210 is reflected in parallel and enters the second lens 240 as described above, and the light incident on the parabolic reflecting surface of the second lens 240 1 deflects the light toward the second optical axis Ax1 by the curvature of the first surface 242 when the light is emitted from the surface 242 and diffuses again at the light transmitting lens 710 to form a diffusion pattern formed on one side of the high light intensity pattern .

Light from the second light source 210 is condensed in the vicinity of the rear focal point of the second lens 240, is incident on the second lens 240, passes through the second lens 240, The light is emitted from the first surface 242 of the lamp module 240. The first to third embodiments according to the lamp module for a vehicle of the present invention can more easily form a high luminous intensity pattern by using different types of reflection surfaces in combination .

10 (a) is a low beam pattern shown in accordance with the optical path of the second embodiment of the present invention, and FIG. 10 (b) is a low beam pattern shown according to the optical path of the third embodiment of the present invention.

It is also understood that the beam of Example 2 has a spot region H2 formed on the side of HV more than the beam of Example 3, so that the value of Max Cd is higher than that of the beam shown in Fig. 14 (b).

In the case of Embodiment 2, the maximum luminous intensity (Max Cd) is 25959.31, and in Embodiment 3, the maximum luminous intensity (Max Cd) is 29604.99, so that Embodiment 2 efficiently forms a low beam can see.

That is, when the second reflective surfaces 120b and 220b are formed as a multi-ellipsoidal reflective surface, the luminous intensity of the high luminous intensity area is lowered and the diffusion area is difficult to be formed. Therefore, the second reflective surfaces 120b and 220b, When the parabolic reflection surfaces 120b and 220b are formed of a parabolic reflection surface and an elliptical reflection surface, a high light intensity region and a diffusion region can be efficiently formed.

7 to 9 of the present specification, the first optical element and the second optical element are formed by a reflector, but the first optical element and the second optical element are each formed by the first light source 110 and the second optical element The light incident from the two light sources 210 may be formed as a lens body that is internally reflected by the first optical element and the second optical element. When the lens body is formed, a shield is formed on one surface of the lens body, And the shield can be integrally formed.

In the vehicle lamp module according to the embodiment of the present invention, the first light source 110 and the second light source 210 have different amounts of light, and one of the first light source 110 and the second light source 210 And may have a light amount twice or more than that of the other one. In the embodiment of the present invention, the second light source 210 has a light amount higher than that of the first light source 110 and has a light amount twice or more. This is because more light is used to form the diffusion pattern.

FIG. 11 is a perspective view of a vehicle lamp according to an embodiment of the present invention, FIG. 12 is a top view of a vehicle lamp according to an embodiment of the present invention, and FIG. Fig.

11 to 13, a vehicle lamp according to an embodiment of the present invention will be described in detail. A vehicle lamp according to an embodiment of the present invention includes a plurality of lamp modules 10, 20, 30 and forms two or more different beam patterns.

The vehicle lamp according to the embodiment of the present invention is characterized in that a plurality of lamp modules includes a plurality of light source units 100, 200, 300, 400, 500, 600, and at least a part of the plurality of lamp modules Wherein the plurality of light source units 100 and 200 implement one beam pattern and at least a part of the plurality of lamp modules 20 includes a plurality of light source units that implement a plurality of beam patterns, The lamp module of the first embodiment includes one projection lens 710, 720, and 730 disposed in front of the plurality of light source units, respectively.

Therefore, the plurality of lamp modules have the effect that the plurality of light source units can be recognized as one lamp when viewed from the front, by sharing one projection lens.

Figs. 11 to 13 illustrate in detail the arrangement and configuration of a lamp module for a vehicle in a vehicle lamp according to an embodiment of the present invention.

The vehicle lamp according to the embodiment of the present invention includes a first lamp module 10, a second lamp module 20, and a third lamp module 30, each of which comprises a plurality of light source units. The first lamp module 10 includes a first light source unit 100 and a second light source unit 200. The second lamp module 20 includes a third light source unit 300 and a fourth light source unit 400, And the third lamp module 30 includes a fifth light source unit 500 and a sixth light source unit 600.

In the first lamp module 10, a plurality of light source units all form a beam pattern having the same function. In the present embodiment, the plurality of light source units of the first lamp unit 10 are configured to implement a low beam pattern having a cutoff line. The first light source unit 100 and the second light source unit 200 are arranged such that the light emitted from the first light source 110 and the second light source 210 is transmitted and the first light flux having the first optical axis Ax1 is transmitted, (140), and a first optical element for controlling at least a part of the light emitted from the first light source (110) to enter into the first lens (140), and the second light source unit (200) A light source 220, a second lens 240, and a second optical element. The first light source unit 100 and the second light source unit 200 may include a first reflector 120 and a second reflector 120 in which the first optical element 100 and the second optical element 200 form a reflective surface inward, 220, and further includes a first shield 130 and a second shield 230, respectively.

Therefore, the first light source unit 100 is configured such that the light emitted from the first light source 120 is reflected by the first reflector 120 and is partially blocked by the first shield 130, Is incident on and emitted from the light transmitting lens 710 to form a high intensity pattern of the low beam pattern on the vehicle front road surface.

The second light source unit 200 is configured such that the light emitted from the second light source 220 is reflected by the second reflector 220 and is partially blocked by the second shield 230, One light is incident on and out of the projection lens 710 to form a diffusion pattern of the low beam pattern on the road surface ahead of the vehicle.

Since the first light source unit 100 forms a high intensity pattern, the first reflector 120 may be an elliptical reflector for condensing light, and the second light source unit 200 may form a diffusion pattern. Therefore, 220 may be a parabolic reflector that reflects light in parallel.

In addition, the first light source unit 100 is disposed closer to the vehicle center axis than the second light source unit 100 with respect to the vehicle center axis. This is because it is preferable that the second light source unit 200 is arranged as described above because it forms a diffusion pattern so that light interference is caused by the first light source unit 100 and the other light source module.

In the second lamp module 20, the plurality of light source units form two or more beam patterns. In this embodiment, the third light source unit 300 of the plurality of light source units forms a low beam, and the fourth light source unit 400 is configured to form a high beam. Accordingly, the third light source unit 300 includes a shield, and the fourth light source unit 400 does not include a shield. It is preferable that the light amount of the light source of the fourth light source unit 400 is higher than the light amount of the light source of the third light source unit 300.

11 to 13 are arranged in the order of the second lamp module 20, the first lamp module 10 and the third lamp module 30 in the lateral direction X from the center axis of the vehicle And arranged in the order of the second lamp module, the first lamp module, and the third lamp module from the front of the vehicle to the rear of the vehicle in the vehicle longitudinal direction Y. [

14, the first lamp module 10 of the present invention is configured such that the first light source unit 100 forms a high luminous intensity region (Hz) of the low beam pattern Lb and the second light source unit 200 forms a high luminous intensity region And the diffusion region SP2 is inspected. The second lamp module 20 irradiates the intermediate diffuse area SP1 with the third light source unit 300 and irradiates the beam pattern on the area above the cutoff line C by the fourth light source unit 400. [ The third lamp module 30 irradiates the beam pattern on the area above the cutoff line C of the fifth light source unit 500 as well as from the fourth light source unit 400 and the fifth light source unit 500 The beam pattern is superimposed to form the high beam pattern Hb. The sixth light source unit 600 also irradiates the beam pattern with the diffusion regions SP1 and SP2. Accordingly, the beam patterns from the first light source unit 100, the second light source unit 200, the third light source unit 300, and the sixth light source unit 600 are overlapped to form a low beam pattern Lb.

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.

10: first module 20: second module
30: Third module 100: First light source unit
110: first light source 120: first reflector
130: first shield 140: first lens
200: second light source unit 210: second light source
220: second reflector 230: second shield
240: second lens 200: second light source unit
300: third light source unit 400: fourth light source unit
500: fifth light source unit 600: sixth light source unit
710: first light projecting lens 720: second light projecting lens
730: third light projecting lens

Claims (25)

A lamp module for a vehicle,
A first light source,
A first lens having a first optical axis through which light emitted from the first light source is transmitted,
A first light source unit including a first optical element for controlling at least a part of light emitted from the first light source to be incident on the first lens;
A second light source,
A second lens having a second optical axis through which light emitted from the second light source is transmitted,
A second light source unit including a second optical element for controlling at least a part of light emitted from the second light source to be incident on the second lens; And
And a projection lens disposed in front of the first light source unit and the second light source unit and irradiating the light transmitted by the first lens and the second lens to irradiate the road surface pattern in front of the vehicle, However,
Wherein the first optical axis or the second optical axis is aligned so as not to intersect the central axis of the projection lens.
The method according to claim 1,
At least one light source unit of the first and second light source units,
Further comprising a shield extending rearward from a rear focal point of the first lens or the second lens and having a front end portion in the rear focus. The method according to claim 1,
The light-
Wherein the lamp module is convex toward the front of the vehicle with respect to a vertical section of the lamp module for a vehicle and has a convex curvature toward the front of the vehicle with respect to a horizontal cross section of the lamp module for a vehicle.
The method according to claim 1,
Wherein the first lens and the second lens are formed of a convex lens including an incident surface and an exit surface,
Wherein the first lens has an asymmetric curvature of the exit surface with respect to the first optical axis.
5. The method of claim 4,
And the exit surface of the second lens is in line symmetry with respect to the exit surface of the first lens with respect to the central axis.
5. The method of claim 4,
The exit surface of the first lens has a first surface formed on an outer side of the lamp module for a vehicle with respect to the first optical axis,
And a second surface formed on the inner side of the vehicle lamp module with respect to the first optical axis,
Wherein a curvature of the first surface is formed to be larger than a curvature of the second surface.
The method according to claim 6,
Wherein light emitted through the first surface is deflected toward the first optical axis and is incident on the projection lens.
The method according to claim 1,
Wherein the first optical element is formed of a first reflector having a reflective surface formed inside,
Wherein the second optical element is formed of a second reflector in which a reflecting surface is formed inside.
9. The method of claim 8,
Wherein the first reflector is formed as a reflecting surface based on an ellipse and reflects the light emitted from the first light source to converge to a vicinity of the rear focal point of the first lens,
Wherein the second reflector is formed as a reflecting surface based on a parabolic line so that at least a part of the light emitted from the second light source is reflected in parallel to the second optical axis.
3. The method of claim 2,
The first light source unit includes a first shield including a reflective portion extending rearward from the front end portion and a cutoff forming portion formed at the front end portion,
And the second light source unit includes a second shield including a reflection portion extending rearward from the front end portion and a cutoff forming portion formed at the front end portion.
11. The method of claim 10,
Wherein the reflective portion of the first shield has a smaller area than the reflective portion of the second shield.
10. The method of claim 9,
A beam pattern formed by the first light source unit and a beam pattern formed by the second light source unit are overlapped to form a low beam pattern,
The first light source unit forms a high luminous intensity region of the low beam pattern,
And the second light source unit forms a diffusion region of the low beam pattern.
9. The method of claim 8,
Wherein at least one of the first reflector and the second reflector has a first reflecting surface disposed on the outer side of the vehicle lamp module with respect to the first optical axis and a second optical axis, 2 reflective surfaces,
Wherein the first reflecting surface is formed as a reflecting surface based on a parabolic curve, and the second reflecting surface is formed as a reflecting surface based on an ellipse.
14. The method of claim 13,
Wherein a part of the light emitted from each of the first light source and the second light source is incident on the first reflection surface and the other part is incident on the second reflection surface,
The light incident on the first reflection surface is reflected so that at least a part thereof is parallel to the first optical axis and the second optical axis,
Wherein light incident on the second reflection surface is reflected so as to pass near the rear focal point of each of the first lens and the second lens,
Automotive Lamp Module.
15. The method of claim 14,
A beam pattern formed by the first light source unit and a beam pattern formed by the second light source unit are overlapped to form a low beam pattern,
Wherein the light reflected from the first reflection surface forms a high intensity area of the low beam pattern and the light reflected from the second reflection surface forms a diffusion area of the low beam pattern.
The method according to claim 1,
Wherein at least one of the first optical element and the second optical element is formed of a lens body that reflects light inside.
3. The method of claim 2,
Wherein at least one of the first optical element and the second optical element is formed of a lens body that reflects light inside, and the shield is formed on at least one surface of the lens body.
The method according to claim 1,
Wherein the first light source and the second light source have different amounts of light,
Wherein one of the first light source and the second light source has a light quantity twice or more of the other.
A lamp assembly for a vehicle having a plurality of lamp modules and forming two or more different beam patterns,
Wherein the plurality of lamp modules include a first lamp module and a second lamp module each having a plurality of light source units,
At least one light source unit among the plurality of light source units provided in the first lamp module implements one beam pattern,
At least one light source unit among the plurality of light source units provided in the second lamp module implements at least two beam patterns,
Wherein the first lamp module and the second lamp module each include a projection lens disposed in common in front of the at least one light source unit.
20. The method of claim 19,
Wherein each of the plurality of light source units provided in the first lamp module or the second lamp module includes a lens having an optical axis through which light emitted from the light source is transmitted and at least a part of light emitted from the light source is made incident on the lens Wherein the optical element comprises an optical element.
21. The method of claim 20,
Wherein the optical element is composed of a reflector having a reflection surface formed inside,
In the first lamp module, the reflector of the light source unit disposed outward with respect to the vehicle central axis has a reflection surface having a wider area than the reflector of the light source unit disposed inside.
20. The method of claim 19,
At least some of the plurality of light source units of the second lamp module represent low beam patterns forming a cutoff line,
And another part of the plurality of light source units shows a high beam pattern irradiating the upper side of the cutoff line.
23. The method of claim 22,
In the second lamp module, the light source unit implementing the low beam pattern further includes a shield.
20. The method of claim 19,
Wherein the second lamp module is disposed forward of the first lamp module and is disposed closer to the vehicle center axis than the first lamp module.
20. The method of claim 19,
Wherein the at least one light source unit included in the second lamp module includes a first light source and a second light source, the light amounts of the first light source and the second light source being different from each other.

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