KR102405443B1 - Lamp for vehicle - Google Patents

Abstract

In the vehicle lamp module according to an embodiment of the present invention, the vehicle lamp module includes a first light source, a first lens through which light emitted from the first light source is transmitted and having a first optical axis, and a first light source emitted from the first light source. a first light source unit including a first optical element controlling at least a portion of light to be incident on the first lens; A second light source, a second lens through which light emitted from the second light source is transmitted and having a second optical axis, and a second optical element controlling at least a portion of the light emitted from the second light source to be incident on the second lens a second light source unit including; and a translucent lens disposed in common in front of the first light source unit and the second light source unit, the light transmitted from the first lens and the second lens is incident to irradiate a road pattern in front of the vehicle, and having a central axis. Including, but the first optical axis or the second optical axis may be aligned so as not to intersect the central axis of the light-transmitting lens.

Description

Lamp for vehicle

The present invention relates to a vehicle headlamp, and more particularly, to a vehicle lamp in which a plurality of lenses are disposed in a light propagation direction.

In general, a vehicle is provided with various types of lamps having a lighting function for easily identifying an object located around the vehicle during night driving and a signal function for notifying other vehicles or road users of the driving state of the vehicle.

For example, a head lamp and a fog lamp mainly for the purpose of a lighting function, and a turn signal lamp, a tail lamp, and a brake for the purpose of a signal function It is equipped with a brake lamp, a side marker, and the like, and the installation standards and standards for these vehicle lamps are regulated by laws and regulations to fully exhibit each function.

Among the vehicle lamps, the head lamp forms a low beam pattern or a high beam pattern so that the driver's front view is secured when the vehicle is driven in a dark environment such as at night, and plays a very important role in safe driving. is doing

These headlamps usually maintain a low beam pattern to prevent glare to a driver of an oncoming vehicle or a driver of a preceding vehicle traveling in the opposite direction. Accordingly, a high beam pattern is formed to promote safe driving.

In general, a vehicle is provided with various types of lamps having a lighting function for easily identifying an object located around the vehicle during night driving and a signal function for notifying other vehicles or road users of the driving state of the vehicle.

For example, headlamps and fog lamps mainly for the purpose of lighting functions, and turn signal lamps, tail lamps, brake lamps, and side markers for the purpose of signal functions are provided, and these vehicle lamps are In order to fully demonstrate each function, the installation standards and standards are prescribed by laws and regulations.

Among vehicle lamps, headlamps that form a low-beam pattern or a high-beam pattern so as to secure a driver's front view when driving at night play a very important role in safe driving.

A conventional vehicle lamp is configured to include 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 it 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 at least a part is blocked by the shield member, and the light blocked by the shield member is reflected in the upward direction By being projected, a low beam pattern is formed.

Korea Patent Publication No. 2015-0052638

The technical problem to be solved by the present invention is to provide a vehicle lamp in which a plurality of lamp modules are disposed.

In particular, the vehicle lamp module is to provide a vehicle lamp capable of recognizing a plurality of light source units as one.

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

In the vehicle lamp module according to an embodiment of the present invention, the vehicle lamp module includes a first light source, a first lens through which light emitted from the first light source is transmitted and having a first optical axis, and a first light source emitted from the first light source. a first light source unit including a first optical element controlling at least a portion of light to be incident on the first lens; A second light source, a second lens through which light emitted from the second light source is transmitted and having a second optical axis, and a second optical element controlling at least a portion of the light emitted from the second light source to be incident on the second lens a second light source unit including; and a translucent lens disposed in common in front of the first light source unit and the second light source unit, the light transmitted from the first lens and the second lens is incident to irradiate a road pattern in front of the vehicle, and having a central axis. Including, but the first optical axis or the second optical axis may be aligned so as not to intersect the central axis of the light-transmitting lens.

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

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

The effect according to the present invention is not limited by the contents exemplified above, and more various effects are included in the present 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 illustrating an optical path formed by a plurality of conventional lenses.
5 is a diagram illustrating an optical path formed by a plurality of lenses according to an embodiment of the present invention.
6 is a view showing a light path in a cross-sectional side view of the lamp module for a vehicle of the present invention.
7 is a view showing a light path of a vehicle lamp according to an embodiment of the present invention.
8 is a view showing a light path of a vehicle lamp according to another embodiment of the present invention.
9 is a view illustrating a light path of a vehicle lamp according to another embodiment of the present invention.
10 is a view illustrating a beam pattern of a vehicle lamp according to another embodiment of the present invention.
11 and 12 are views illustrating a plurality of lamp modules according to an embodiment of the present invention.
13 is a view illustrating that a plurality of lamp modules according to an embodiment of the present invention is provided in a vehicle.
14 is a view illustrating a beam pattern irradiated from a plurality of light source units according to an embodiment of the present invention.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Accordingly, in some embodiments, well-known process steps, well-known structures, and well-known techniques have not been specifically described in order to avoid obscuring the present invention.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, includes and/or comprising means not excluding the presence or addition of one or more other components, steps and/or actions other than the stated components, steps and/or actions. use it as And, “and/or” includes each and every combination of one or more of the recited items.

In addition, the embodiments described herein will be described with reference to perspective, cross-sectional, side, and/or schematic views that are ideal illustrative views of the present invention. Accordingly, the shape of the illustrative drawing may be modified due to manufacturing technology and/or tolerance. Accordingly, embodiments of the present invention are not limited to the specific form shown, but also include changes in the form generated according to the manufacturing process. In addition, in each of the drawings shown in the embodiment of the present invention, each component may be enlarged or reduced to some extent in consideration of convenience of description.

Hereinafter, preferred embodiments of a vehicle lamp module and vehicle head lamp according to the present invention will be described in detail based on the accompanying illustrative drawings.

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 cross-sectional view of a lamp module for a vehicle according to an embodiment of the present invention.

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

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

The first light source unit 100 includes a first light source 110 , a first lens 140 through which light irradiated from the first light source 110 is transmitted, and a first light source 110 including a first optical axis Ax1 . It is composed of a first optical element 120 that controls so that at least a portion of the light emitted from the first lens 140 can be incident into the interior.

The second light source unit 200 includes a second light source 210 , a second lens 240 through which light emitted from the second light source 210 is transmitted, and a second light source 210 including a second optical axis Ax2 . It is composed of a second optical element 220 that controls at least a portion of the light irradiated from the second lens 240 to be incident into the interior.

In addition, the vehicle lamp module is disposed in common in front of a plurality of light source units, and the light transmitted from each light source unit is incident and emitted, thereby forming a beam pattern on the road surface in front of the vehicle, and the geometric axis of the central axis (Ax) ), wherein the first optical axis Ax1 or the second optical axis Ax2 are aligned so as not to intersect the central axis Ax of the light transmitting lens.

A vehicle lamp module 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, and the first lens 140 and the second lens 240 of the present invention is formed with a size of approximately 20 mm in width and 20 mm in length, so it is inevitable to use a plurality of units to have optical performance that satisfies the main beam pattern. If the main beam pattern is formed with one optical unit, the light source needs to use a high luminous intensity, and accordingly, the entire optical system is enlarged and heat dissipation is difficult. However, the lamp module for a vehicle of the present invention has the effect of forming a miniaturized module having excellent heat dissipation and excellent design while having light performance satisfying the main beam pattern by using a plurality of miniaturized light source units.

In addition, the lamp module for a vehicle according to an embodiment of the present invention has an effect that a plurality of light source units can be recognized as one by disposing the light-transmitting lens 710 in front of the plurality of light sources, and can control the light more efficiently It works.

In addition, 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 each other at any one point with the central axis (Ax) of the light-transmitting lens, so that the light collecting pattern and The diffusion pattern can be formed most efficiently, and when viewed from the front, the light emitting surface is uniform to improve the lighting image, and there is an effect that can prevent the optical system from being damaged by heat because the light is condensed at a certain location.

In addition, in the vehicle lamp module of the present invention, at least one light source unit of the first lens 140 and the at least one light source unit of the second lens 240 is the first lens 140 or the second lens 240 . It further includes a shield formed extending from the rear focal point. The lamp module for a vehicle according to an embodiment of the present invention illustrates that the first light source unit 100 and the second light source unit 200 include a first shield 130 and a second shield 230 , respectively. In addition, depending on the shape of the vehicle, such a shield may be formed to extend downwardly from the hull.

The first shield 130 and the second shield 230 each have a cut-off forming portion for forming a cut-off line positioned at a front end thereof, and a reflecting portion extending rearwardly from the cut-off forming portion. In this case, the reflective portion of the first shield 130 is formed to have a smaller area than the reflective portion of the second shield 230 .

In the lamp module for a vehicle according to an embodiment of the present invention, since each optical unit includes a shield, beam patterns formed from a plurality of optical units may overlap to form a low beam. In this case, the first optical unit 100 irradiates the high luminance region in the low beam, and the second optical unit 200 irradiates the diffusion region. Accordingly, since the higher the amount of light irradiated from the first optical unit 100, the better the efficiency. Therefore, it is natural that the larger the area of the shield reflecting unit is, the better the light efficiency is. However, since the beam pattern has different standards for satisfying light distribution in each country, it cannot be said that only the high light efficiency of the spot module is an advantage for common use. Therefore, the lamp module for a vehicle of the present invention has an effect of controlling it by adjusting the area of the reflection part of the shield.

In addition, the lamp module for a vehicle according to an embodiment of the present invention includes a light-transmitting lens 710, and the light-transmitting lens 710 is convex to the front of the vehicle on the A-A vertical cross-section of the vehicle lamp module as shown in the cross-sectional side view of FIG. The curvature is formed to have a shape, and the curvature is formed to have a convex shape in the front of the vehicle on the B-B horizontal section of the vehicle lamp module. Accordingly, the light-transmitting lens 710 of the present invention satisfies the optical function while allowing a plurality of lamp units to be recognized as one curved surface from the front. Here, Fig. 3 (a) is a view showing the translucent lens 710 of B-B horizontal section, and Fig. 3 (b) is a view showing the translucent lens 710 of A-A vertical section.

In addition, 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 based on the first optical axis Ax1. This asymmetry This is to achieve parallel light when light emitted from the first lens 140 and incident from the light-transmitting lens is emitted from the light-transmitting lens.

In addition, 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 a geometric axis of the light-transmitting lens.

4 and 5 are schematic views of the first lens 140 and the second lens 240 and the light-transmitting lens constituting the vehicle lamp module of the present invention, through which the first lens 140 and the second lens An optical correlation between (240) and the light-transmitting lens can be seen. Accordingly, FIGS. 4 and 5 are for explaining the shapes of the first and second lenses of the present invention, and the plurality of light paths described in FIGS. 4 and 5 are substantially generated by the vehicle lamp of the present invention. It is not an optical path that becomes

4 shows a conventional first lens 800a and a conventional second lens 800b when the conventional first lens 800a and the conventional second lens 240 are symmetrical about the optical axis Ax3 of the light-transmitting lens. ) and the light-transmitting lens are schematically shown, and FIG. 5 is a lens in which the exit surface of the first lens 140 is asymmetrical, and the exit surface of the second lens 240 is the central axis ( Ax) schematically illustrates the optical correlation between the first lens 140 and the second lens 240 and the light-transmitting lens when symmetry is achieved.

As shown in FIG. 4 , the conventional first lens 800a and the conventional second lens 800b are composed of aspherical 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, so that the light beam is diffused in both directions. Since these light beams are not suitable for forming the main beam pattern, it is preferable that the curvature of the exit surface of the first lens 140 and the second lens 240 is asymmetric with respect to the optical axes Ax1 and Ax2. As such, when the curvature of the exit surface is asymmetrically formed 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 crosses the first optical axis Ax1 . a first surface 142 formed on the outside of the vehicle lamp module as a center, and a second surface 144 formed on the inside of the vehicle lamp module, wherein the curvature of the first surface 142 is the second surface 144 ) is larger than the curvature of This is because, as shown in FIG. 4 , the light beam is more diffused toward both ends of the light-transmitting lens 710 . That is, by forming the curvature of the first surface 142 to be greater 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 being incident on the light transmitting lens 710 , the light L2 emitted from the light transmitting lens forms parallel light.

In the second lens 240 , the exit surface of the first lens 140 is symmetrical with respect to the central axis Ax of the light-transmitting lens 710 , so that the exit surface of the second lens crosses 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 vehicle lamp module as a center, wherein the curvature of the first surface 242 is that of the second surface 244 formed larger than the curvature. This is because, as described above, the light beam is more diffused toward both ends of the light-transmitting lens 710 . That is, by forming the curvature of the first surface 240 of the second lens to be greater than the curvature of the second surface 244 , the light emitted from the first surface 242 is deflected toward the second optical axis Ax2 to transmit light. By making the lens 710 incident, the light emitted from the light-transmitting lens 710 forms parallel light.

The curvature of the exit surfaces 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 curvature of the vertical or horizontal cross-section of the light-transmitting lens 710 .

6 is a cross-sectional side view of the lamp module for a vehicle of the present invention showing the light path, and shows that the light passing through the light-transmitting lens is emitted in parallel.

In the vehicle lamp module according to the embodiment of the present invention, the first optical element 100 and the second optical element 200 may be formed of a first reflector 120 and a second reflector 240 having a reflective surface formed therein. can 7 to 9 are top views and optical paths of an optical system in which a vehicle lamp module according to an embodiment of the present invention forms a first optical element and a second optical element by a first reflector 120 and a second reflector 240 is showing

7 illustrates a first embodiment in which the first reflector 120 is formed of a reflective surface based on an ellipse, and the second reflector 220 is formed of a reflective surface based on a parabola. Accordingly, the first reflector 120 is formed as a reflective surface based on an ellipse serving to condense light, thereby condensing the light from the first light source 110 to the vicinity of the rear focal point of the first lens 140 . The reflected and condensed light is incident on the first lens 140 . The light emitted from the first lens 140 is incident on the light-transmitting lens and is emitted as parallel light, thereby forming a high-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 the light from the first light source 110 is incident on the second lens 240 in parallel. The parallel incident light passes through the second lens 240 and the light-transmitting lens 710 to form a light beam that intersects with each other. Such a light beam forms a diffusion pattern formed on both sides of the high luminance region of the low beam pattern.

8 illustrates a second embodiment in which each of the first reflector 120 and the second reflector 220 is formed of reflective surfaces of different shapes with respect to the first optical axis Ax1 and the second optical axis Ax2. will be. Accordingly, the first reflector 120 and the second reflector 220 are first reflective surfaces 120a. 220a disposed on the outside of the vehicle lamp module with respect to the first optical axis Ax1 and the second optical axis Ax2, respectively. and second reflective surfaces 120b and 220b disposed inside the vehicle lamp module. The first reflective surfaces 120a and 220a are formed as reflective surfaces based on a parabola, and the second reflective surfaces 120b and 220b are formed as reflective surfaces based on an ellipse. In addition, the first reflective surfaces 120a and 220a and the second reflective surfaces 120b and 220b are integrally formed.

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

In addition, as for the light incident on the second reflective surface 144 , the light from the first light source 110 is condensed near the rear focal point of the first lens 140 , and is incident on the first lens 140 to the first lens The light emitted from the first surface 142 of 140 forms parallel light, thereby forming a high-intensity pattern in the low-beam pattern.

A portion of the light irradiated from the second light source 210 in the second optical unit 200 is incident on the first reflective surface 220a, and the other portion is incident on the second reflective surface 220b. The light incident on the first reflective surface 220a is reflected in parallel from the second light source 210 and is incident on the second lens 240 , and is incident on the first surface 242 of the second lens 240 . When emitted, the light is deflected toward the second optical axis Ax2 by the curvature of the first surface 242, and is deflected again from the light-transmitting 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 intersects the direction in which light is incident through the first reflective surfaces 120a and 220a, and the second reflective surface A high-intensity pattern may be formed through 120b and 220b to form an overall low-beam pattern.

FIG. 9 illustrates a third embodiment in which a reflection surface based on an ellipse and a parabola is formed on the second reflection surface formed on each of the first reflector 120 and the second reflector 220 . Accordingly, the first reflector 120 and the second reflector 220, respectively, the second reflective surface is formed of a reflective surface based on a parabola and a reflective surface based on an ellipse, and the reflective surface based on the ellipse is a parabola. It may be positioned forward on the second reflective surface than the reflective surface on which it is based.

Accordingly, part of the light emitted from the first light source in the first optical unit 100 is incident on the reflective surface based on the parabola of the ellipse of the second reflective surface 120b, and the other part is the reflective surface based on the ellipse. is entered into As described above, the light incident on the reflective surface based on the parabola is incident on the first lens 140 as the light from the first light source 110 is reflected in parallel, and the first lens 140 is When emitted from the first surface 142, the light is deflected toward the first optical axis Ax1 by the curvature of the first surface 142, and the light-transmitting lens 710 is deflected again to form a diffusion pattern formed on one side of the high-intensity pattern. to form

In addition, as for the light incident on the reflective surface based on the ellipse, the light from the first light source 110 is condensed near the rear focal point of the first lens 140 , and is incident on the first lens 140 to the first lens. The light emitted from the first surface 142 of 140 forms parallel light, thereby forming a high-intensity pattern in the low-beam pattern (ellipse and parabola).

Part of the light irradiated from the second light source 210 in the second optical unit 200 is incident on the reflective surface based on the ellipse and parabola of the second reflective surface 220b, and the other part is the reflective surface based on the ellipse. is entered into The light incident on the reflective surface based on the parabola is incident on the second lens 240 as the light from the second light source 210 is reflected in parallel as described above, and the second lens of the second lens 240 . When emitted from the first surface 242, the light is deflected toward the second optical axis Ax1 due to the curvature of the first surface 242, and the light-transmitting lens 710 is deflected again to form a diffusion pattern formed on one side of the high-intensity pattern. to form

In addition, as for the light incident on the reflective surface based on the ellipse, the light from the second light source 210 is condensed near the rear focal point of the second lens 240 , and is incident on the second lens 240 to the second lens. It is emitted from the first surface 242 of 240. In the first to third embodiments according to the vehicle lamp module of the present invention, a high-intensity pattern can be more easily formed by using a combination of different types of reflective surfaces. .

Fig. 10(a) is a low-beam pattern shown along the optical path of Embodiment 2 of the present invention, and Fig. 10(b) is a low-beam pattern shown along the optical path of Embodiment 3 of the present invention.

In addition, it can be seen that the beam of Example 2 has a spot region H2 wider than that of Example 3 on the HV side, so that the Max Cd value is higher than that of the beam shown in FIG. 14(b) .

In addition, in the case of Example 2, it has a maximum luminous intensity value (Max Cd): 25959.31, and in the case of Example 3, it has a maximum luminous intensity value (Max Cd): 29604.99, so that the low beam is efficiently formed in Example 2 can see.

That is, when all of the second reflective surfaces 120b and 220b are formed as elliptical reflective surfaces, the luminosity of the high luminance region decreases and the diffusion region becomes difficult to form, so the second reflective surfaces 120b and 220b and the second reflective surface When (120b, 220b) is formed with a parabolic reflective surface and an elliptical reflective surface, a high luminance region and a diffusion region can be efficiently formed.

In addition, although an embodiment in which the first optical element and the second optical element are formed as a reflector is illustrated in FIGS. 7 to 9 of the present specification, each of the first optical element and the second optical element includes the first light source 110 and the second optical element 2 The light incident from the light source 210 may be formed of a lens body that is internally reflected by the first and second optical elements, and when the lens body is formed, a shield is formed on one surface of the lens body to form the first optical element And there is an effect that the shield can be integrally formed.

In addition, 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 any one of the first light source 110 and the second light source 210 is It may have more than twice the amount of light of the other. In the embodiment of the present invention, the second light source 210 has a higher light quantity than the first light source 110 and has twice the light quantity. This is because a larger amount of light is used to form the diffusion pattern.

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. 13 is a vehicle lamp according to an embodiment of the present invention mounted on a vehicle It is a schematic diagram showing that

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.

In the vehicle lamp according to an embodiment of the present invention, the plurality of lamp modules includes a plurality of light source units 100 , 200 , 300 , 400 , 500 and 600 , and at least some of the first lamp modules 10 among the plurality of lamp modules ), the plurality of light source units 100 and 200 implement one beam pattern, and in at least some of the plurality of lamp modules, the second lamp module 20 implements a plurality of beam patterns, and the plurality of light source units implement a plurality of beam patterns. Each of the lamp modules includes one light-transmitting lens 710 , 720 , 730 disposed in front of the plurality of light source units.

Accordingly, since the plurality of lamp modules share one light-transmitting lens, the plurality of lamp modules can be recognized as one lamp when viewed from the front.

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

A vehicle lamp according to an embodiment of the present invention includes a first lamp module 10 , a second lamp module 20 , and a third lamp module 30 , and each lamp module includes 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 , and 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 , the plurality of light source units all have the same function to form a beam pattern. In the present embodiment, all of the plurality of light source units of the first lamp unit 10 are configured to implement a low beam pattern having a cut-off line. Accordingly, the first light source unit 100 and the second light source unit 200 transmit the light irradiated from the first light source 110 and the second light source 210, respectively, and have a first lens having a first optical axis Ax1. (140), is composed of a first optical element that controls at least a portion of the light irradiated from the first light source 110 to be incident into the first lens 140, the second light source unit 200 is also configured in the second It is composed of 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 include a first reflector 120 and a second reflector ( 220), and further includes a first shield 130 and a second shield 230, respectively.

Accordingly, in the first light source unit 100 , the light irradiated from the first light source 120 is reflected by the first reflector 120 and partially blocked by the first shield 130 , and the first lens 140 . The light passing through is incident and emitted to the light-transmitting lens 710 to form a high-intensity pattern among the low-beam patterns on the road surface in front of the vehicle.

In the second light source unit 200 , the light irradiated from the second light source 220 is reflected by the second reflector 220 , a portion is blocked by the second shield 230 , and passes through the second lens 240 . One light is incident on and emitted from the light-transmitting lens 710 to form a diffusion pattern among the low-beam patterns on the road surface in front of the vehicle.

At this time, since the first light source unit 100 forms a high-intensity pattern, the first reflector 120 may be an elliptical reflector that condenses light, and the second light source unit 200 forms a diffusion pattern, so the second reflector ( 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 central axis than the second light source unit 100 with respect to the vehicle central axis. It is preferable that the second light source unit 200 forms a diffusion pattern, so that when light interference occurs by the first light source unit 100 and other light source modules, it becomes difficult to spread the light beam.

In the second lamp module 20, a plurality of light source units form two or more beam patterns. In the present embodiment, among the plurality of light source units, the third light source unit 300 forms a low beam, and the fourth light source unit_400 forms 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. In addition, it is preferable that the amount of light of the light source of the fourth light source unit 400 is higher than that of the light source of the third light source unit 300 .

The vehicle lamp assembly of the present invention according to FIGS. 11 to 13 is arranged in the order of the second lamp module 20 , the first lamp module 10 , and the third lamp module 30 in the transverse direction X from the vehicle center axis. The second lamp module, the first lamp module, and the third lamp module are arranged in the order of the vehicle front to the vehicle rear in the vehicle front-rear direction (Y).

14, in the first lamp module 10 of the present invention, the first light source unit 100 forms a high luminance region (Hz) of the low beam pattern Lb, and the second light source unit 200 has a large edge The diffusion region SP2 is irradiated. In the second lamp module 20 , the third light source unit 300 irradiates the intermediate diffusion region SP1 , and the fourth light source unit 400 irradiates a beam pattern to an area above the cut-off line C . The third lamp module 30 also irradiates a beam pattern to an area above the cut-off line C from the fifth light source unit 500 and the fourth light source unit 400 and the fifth light source unit 500 . The beam patterns overlap to form the high beam pattern Hb. The sixth light source unit 600 also irradiates a beam pattern to 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 overlap to form the low beam pattern Lb.

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in 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-transmitting lens 720: second light-transmitting lens
730: third light-transmitting lens

Claims (25)

In the vehicle lamp module,
a first light source;
a first lens through which light emitted from the first light source is transmitted and having a first optical axis;
a first light source unit including a first optical element controlling at least a portion of the light emitted from the first light source to be incident on the first lens;
a second light source;
a second lens through which light emitted from the second light source is transmitted and having a second optical axis;
a second light source unit including a second optical element controlling at least a portion of the light emitted from the second light source to be incident on the second lens; and
It is disposed in common in front of the first light source unit and the second light source unit, the light transmitted from the first lens and the second lens is incident to irradiate a road pattern in front of the vehicle, and includes a light-transmitting lens having a central axis but,
The first optical axis or the second optical axis is aligned so as not to intersect with the central axis of the light-transmitting lens,
The first lens and the second lens are formed of a convex lens including an incident surface and an exit surface,
In the first lens, the curvature of the exit surface is asymmetric with respect to the first optical axis,
The emitting surface of the first lens includes a first surface formed on the outside of the vehicle lamp module with respect to the first optical axis;
and a second surface formed on the inside of the vehicle lamp module with respect to the first optical axis,
A vehicle lamp module in which the curvature of the first surface is greater than the curvature of the second surface.
According to claim 1,
At least one light source unit among the first and second light source units,
The vehicle lamp module further comprising a shield extending rearward from the rear focal point of the first lens or the second lens and having a front end positioned at the rear focal point. The method of claim 1,
The translucent lens,
A vehicle lamp module having a curvature convex in front of the vehicle based on a vertical cross-section of the vehicle lamp module and convex in front of the vehicle based on a horizontal cross-section of the vehicle lamp module.
delete According to claim 1,
The emitting surface of the second lens is line-symmetrical with the emitting surface of the first lens with respect to the central axis.
delete The method of claim 1,
The light emitted through the first surface is deflected toward the first optical axis and is incident on the light-transmitting lens.
In the vehicle lamp module,
a first light source;
a first lens through which light emitted from the first light source is transmitted and having a first optical axis;
a first light source unit including a first optical element controlling at least a portion of the light emitted from the first light source to be incident on the first lens;
a second light source;
a second lens through which light emitted from the second light source is transmitted and having a second optical axis;
a second light source unit including a second optical element controlling at least a portion of the light emitted from the second light source to be incident on the second lens; and
It is disposed in common in front of the first light source unit and the second light source unit, the light transmitted from the first lens and the second lens is incident to irradiate a road pattern in front of the vehicle, and includes a light-transmitting lens having a central axis but,
The first optical axis or the second optical axis is aligned so as not to intersect with the central axis of the light-transmitting lens,
The first optical element is formed of a first reflector having a reflective surface formed therein,
The second optical element is formed of a second reflector having a reflective surface formed therein,
The first reflector is formed as a reflective surface based on an ellipse, and reflects the light emitted from the first light source to be condensed near the rear focal point of the first lens,
The second reflector is formed as a reflective surface based on a parabola, and reflects at least a portion of the light emitted from the second light source in parallel to the second optical axis.
delete 3. The method of claim 2,
The first light source unit includes a first shield including a reflective portion extending rearwardly from the front end and a cut-off forming portion formed on the front end,
The second light source unit includes a second shield including a reflective portion extending rearwardly from the front end and a cut-off forming portion formed on the front end.
11. The method of claim 10,
The reflective portion of the first shield has a smaller area than the reflective portion of the second shield.
9. The method of claim 8,
A low beam pattern is formed by overlapping the beam pattern formed by the first light source unit and the beam pattern formed by the second light source unit,
The first light source unit forms a high luminance region of the low beam pattern,
The second light source unit is a vehicle lamp module forming a diffusion region of the low beam pattern.
9. The method of claim 8,
At least one of the first reflector and the second reflector may include a first reflecting surface disposed outside the vehicle lamp module with respect to the first optical axis and the second optical axis and a first reflecting surface disposed inside the vehicle lamp module 2 reflective surfaces,
The first reflective surface is formed as a reflective surface based on a parabola, and the second reflective surface is formed as a reflective surface based on an ellipse.
14. The method of claim 13,
A portion of the light irradiated from each of the first light source and the second light source is incident on the first reflective surface, and another portion is incident on the second reflective surface,
At least a portion of the light incident on the first reflective surface is reflected so as to be parallel to the first optical axis and the second optical axis,
The light incident on the second reflective surface is reflected so as to pass through the vicinity of the rear focal point of each of the first lens and the second lens,
Vehicle lamp module.
15. The method of claim 14,
A low beam pattern is formed by overlapping the beam pattern formed by the first light source unit and the beam pattern formed by the second light source unit,
The light reflected from the first reflective surface forms a high-intensity region of the low-beam pattern, and the light reflected from the second reflective surface forms a diffusion region of the low-beam pattern.
According to claim 1,
At least one of the first optical element and the second optical element is a vehicle lamp module formed of a lens body that reflects light from the inside.
3. The method of claim 2,
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 of claim 1,
The first light source and the second light source have different amounts of light,
Any one of the first light source and the second light source has a light quantity more than twice that of the other lamp module.
In the vehicle lamp assembly having a plurality of lamp modules and forming two or more different beam patterns,
The plurality of lamp modules includes 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 two or more beam patterns,
Each of the first lamp module and the second lamp module includes a light-transmitting lens commonly disposed in front of the at least one light source unit,
The second lamp module is disposed in front of the first lamp module, and is disposed closer to a vehicle central axis than the first lamp module.
20. The method of claim 19,
Each of the plurality of light source units provided in the first lamp module or the second lamp module transmits light emitted from the light source and controls a lens having an optical axis and at least a portion of the light emitted from the light source to be incident on the lens A lamp assembly for a vehicle comprising an optical element.
21. The method of claim 20,
The optical element is composed of a reflector having a reflective surface formed therein,
In the first lamp module, the reflector of the light source unit disposed outside with respect to the vehicle central axis has a reflective surface having a larger area than the reflector of the light source unit disposed inside the vehicle lamp assembly.
20. The method of claim 19,
At least some of the plurality of light source units of the second lamp module exhibit a low beam pattern forming a cut-off line,
Another part of the plurality of light source units is a vehicle lamp assembly having a high beam pattern irradiating an upper side of the cut-off 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.
delete 20. The method of claim 19,
The at least one light source unit provided in the second lamp module includes a first light source and a second light source, and a light amount of the first light source and a light amount of the second light source are different from each other.

Images