Lamp module and vehicle lamp including same

Abstract

The present invention relates to a lamp module and a vehicle lamp including the same, and more particularly, to a lamp module capable of forming an optimal beam pattern satisfying light distribution characteristics, and a vehicle lamp including the same. The lamp module according to an embodiment of the present invention comprises: a light source part; and an optical portion that transmits at least a portion of light incident from the light source portion and forms a predetermined beam pattern, the optical portion being obliquely disposed in a left-right direction such that one side is located forward than the other side, the optical portion may include: an incident lens portion including a plurality of incident lenses; and a plurality of exit lenses corresponding to each of the plurality of incident lenses.

Description

Technical Field

[0001] The present invention relates to a lamp module and a vehicle lamp including the same, and more particularly to a lamp module capable of forming an optimal beam pattern satisfying light distribution characteristics and a vehicle lamp including the same. Background Art

[0002] Typically, a vehicle is equipped with various vehicle lamps that have a lighting function for facilitating identification of objects around the vehicle during nighttime driving and a signaling function for notifying other vehicles or pedestrians of the vehicle's driving status.

[0003] For example, headlights and fog lights are primarily intended for lighting, while turn signals, taillights, and brake lights are primarily intended for signaling. The setting criteria and specifications for these vehicle lamps are regulated by laws and regulations to ensure that their respective functions are fully utilized.

[0004] Among them, headlights need to ensure sufficient viewing distance and viewing range to ensure the driver's forward vision. To this end, optical systems are used to separately meet the light distribution characteristics corresponding to the viewing distance and the light distribution characteristics corresponding to the viewing range.

[0005] As described above, when optical systems for ensuring a sufficient viewing range and viewing distance are used separately, the structure becomes complicated and the cost increases. Therefore, a solution that can satisfy the required light distribution characteristics while simplifying the structure is required.

[0006] Furthermore, vehicle lamps require that the optical system be tilted according to the vehicle's body line. When the optical system is tilted, the direction of light irradiation changes, making it difficult to form a beam pattern that satisfies the light distribution characteristics. Therefore, a solution is needed that can form an optimal beam pattern even when the optical system is tilted according to the vehicle's body line. Summary of the Invention

[0007] Technical issues The technical problem to be solved by the present invention is to provide a lamp module that forms an optimal beam pattern by simultaneously realizing different light distribution characteristics, and a vehicle lamp including the lamp module.

[0008] Furthermore, the present invention provides a lamp module capable of forming a beam pattern satisfying light distribution characteristics even when an optical system is arranged obliquely according to a vehicle body line, and a vehicle lamp including the lamp module.

[0009] The technical problems of the present invention are not limited to the technical problems mentioned above, and those skilled in the art can clearly understand other technical problems not mentioned from the following description.

[0010] Technical Solution In order to achieve the above technical problem, a lamp module according to an embodiment of the present invention may include: a light source portion; and an optical portion, which transmits at least a portion of the light incident from the light source portion to form a predetermined beam pattern, and the optical portion is tilted in such a manner that one side in the left and right directions is located in front of the other side, and the optical portion includes: an incident lens portion, including a plurality of incident lenses; and an emission lens portion, including a plurality of emission lenses corresponding to each of the plurality of incident lenses.

[0011] The multiple incident lenses can be divided into multiple parts arranged in the up and down directions, and the multiple parts include: a first part having a first light distribution characteristic; and a second part having a second light distribution characteristic, wherein in the optical part, the first part and the second part are alternately arranged in at least one area.

[0012] In the optical portion, the first portion and the second portion may be alternately arranged in at least one of an upper region and a lower region.

[0013] The first part may include at least one first lens column formed to extend in the left-right direction, and the second part may include at least one second lens column formed to extend in the left-right direction, wherein the multiple incident lenses may include: a first incident lens, forming the at least one first lens column and including a plurality of incident areas having different focusing properties from each other; and a second incident lens, forming the at least one second lens column.

[0014] The second incident lens may be a cylindrical lens.

[0015] The at least one first lens column may include a plurality of first lens columns arranged in an up-down direction, and the at least one second lens column may include a single second lens column.

[0016] The number of the first lens columns may be greater than the number of the second lens columns.

[0017] The light incident on the first incident lens may be emitted through at least one of a first and a second incident lens disposed adjacent to each other among the plurality of emission lenses, and the plurality of incident regions may include a first and a second incident region having widths different from each other in the left and right directions.

[0018] The first incident area can cause the light incident on the first incident lens to be emitted through one of the first output lens and the second output lens to be focused at or near the rear focus of the corresponding output lens in the first output lens and the second output lens, thereby enhancing the high illumination area of ​​the beam pattern.

[0019] The second incident region may cause light incident on the second incident lens to be emitted through at least one of the first and second exit lenses to be condensed at a location behind the first incident region, thereby increasing the expansion area of ​​the beam pattern.

[0020] The plurality of incident regions may further include a third incident region formed between the first incident region and the second incident region so that the light incident on the first incident lens travels as parallel light.

[0021] The central axis of each of the multiple emission lenses can be set to be inclined in a direction toward one side of the optical part with respect to a reference axis parallel to the optical axis of the light source part, and each of the multiple emission lenses can be formed so that the area toward the other side is larger than the area toward the one side of the optical part with respect to the central axis.

[0022] The light source unit may include: a light source; and a light path adjusting unit that adjusts a path of light generated from the light source, wherein the light source is located at a lower side with respect to a center of the light path adjusting unit.

[0023] In order to achieve the above technical problem, a vehicle lamp according to an embodiment of the present invention is a vehicle collar lamp that forms a beam pattern by means of a plurality of lamp modules arranged in a direction, wherein each of the plurality of lamp modules may include: a light source portion; and an optical portion that transmits at least a portion of the light incident from the light source portion to form a predetermined beam pattern, the optical portion being tilted so that one side in the left-right direction is located forward of the other side, and the optical portion including: an incident lens portion including a plurality of incident lenses; and an exit lens portion including a plurality of exit lenses corresponding to each of the plurality of incident lenses.

[0024] The light source portion of each of the plurality of lamp modules may include: a light source; and a light path adjusting portion that adjusts a path of light generated from the light source, wherein the light source is located below a center of the light path adjusting portion.

[0025] One of the plurality of lamp modules may have the light source disposed closer to the center of the optical path adjustment portion in the left-right direction than the other lamp modules.

[0026] Other specific matters of the present invention are included in the detailed description and drawings.

[0027] Technical Effects According to the vehicle lamp of the present invention as described above, one or more of the following effects are achieved.

[0028] Since different incident lenses among the plurality of incident lenses are formed to have different light distribution characteristics, there is an effect of being able to satisfy the light distribution characteristics of a desired beam pattern.

[0029] In addition, since at least a portion of the multiple incident lenses includes multiple incident areas with different light-condensing properties, and a predetermined area of ​​the beam pattern can be enhanced by each of the multiple incident areas, it is also possible to form an optimal beam pattern.

[0030] Furthermore, since the central axes of the plurality of emission lenses are tilted relative to a reference axis parallel to the optical axis of the light source, an optimal beam pattern can be formed even when the optical system is tilted relative to the vehicle body line.

[0031] The effects of the present invention are not limited to the effects mentioned above, and those skilled in the art can clearly understand other technical effects that have not been mentioned through the description of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 and Figure 2 is a perspective view showing a lamp module according to an embodiment of the present invention.

[0033] Figure 3 is a side view showing a lamp module according to an embodiment of the present invention.

[0034] Figure 4 is a plan view showing a lamp module according to an embodiment of the present invention.

[0035] Figure 5 is a schematic diagram showing a beam pattern formed by a lamp module according to an embodiment of the present invention.

[0036] Figure 6 1 is a front view showing an optical portion according to an embodiment of the present invention.

[0037] Figure 7 is a rear view showing an optical portion according to an embodiment of the present invention.

[0038] Figure 8 and Figure 9 is an exploded perspective view showing an optical portion according to an embodiment of the present invention.

[0039] Figure 10 is a rear view showing a second light transmitting portion formed with a plurality of first shielding members according to an embodiment of the present invention.

[0040] Figure 11 is a schematic diagram illustrating a beam pattern formed according to an arrangement direction of a first shield according to an embodiment of the present invention.

[0041] Figure 12 1 is a schematic diagram illustrating a light source located on the lower side with the center of the optical path adjustment portion according to an embodiment of the present invention as a reference.

[0042] Figure 13 Schematic diagram showing the path of light incident from a light source located below the center of the optical path adjusting portion according to an embodiment of the present invention.

[0043] Figure 14 is a cross-sectional view showing a first incident lens and an exit lens corresponding to the first incident lens according to an embodiment of the present invention.

[0044] Figure 15 is a schematic diagram illustrating a path of light formed by a first incident lens according to an embodiment of the present invention.

[0045] Figure 16 is a schematic diagram illustrating a path of light formed by a second incident lens according to an embodiment of the present invention.

[0046] Figure 17 Schematic diagram showing a reference axis parallel to the optical axis of the light source unit and the central axis of the emission lens according to the embodiment of the present invention.

[0047] Figure 18 1 is a plan view showing a vehicle lamp according to an embodiment of the present invention.

[0048] Figure 19 and Figure 20 Is shown to belong to Figure 18 Schematic diagram of the light source and the light path adjustment part of the first group and the second group of lamp modules. DETAILED DESCRIPTION

[0049] The advantages and features of the present invention, as well as methods for achieving these advantages and features, will be apparent by reference to the embodiments described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different forms and is not limited to the embodiments disclosed below. These embodiments are provided solely to complete the disclosure of the present invention and to fully inform those having ordinary knowledge in the technical field to which the present invention belongs. The present invention is defined solely by the scope of the claims. Throughout this specification, the same reference numerals refer to the same components.

[0050] Therefore, in some embodiments, in order to avoid obscuring the present invention, well-known process steps, well-known structures, and well-known technologies are not described in detail.

[0051] The terms used in this specification are used to illustrate the embodiments and are not intended to limit the present invention. In this specification, unless otherwise specified, the singular also includes the plural. The terms "comprises" and / or "comprising" used in this specification do not exclude the existence or addition of one or more other constituent elements, steps, operations and / or elements in addition to the mentioned constituent elements, steps, operations and / or elements. In addition, "and / or" includes each and all combinations of more than one of the mentioned items.

[0052] Furthermore, the embodiments described in this specification will be described with reference to the cross-sectional views and / or schematic diagrams which are idealized examples of the present invention. Therefore, the morphology of the example diagrams may be deformed depending on the manufacturing technology and / or allowable errors. Therefore, the embodiments of the present invention are not limited to the specific morphologies shown in the diagrams, but also include variations in morphology generated by the manufacturing process. Moreover, in the various drawings shown in the present invention, the various components may be somewhat enlarged or reduced for the convenience of explanation. Throughout the specification, the same reference numerals refer to the same components.

[0053] Hereinafter, the present invention will be described based on embodiments of the present invention with reference to the accompanying drawings for describing a lamp module and a vehicle lamp including the lamp module.

[0054] Figure 1 and Figure 2 is a perspective view showing a lamp module according to an embodiment of the present invention, Figure 3 is a side view showing a lamp module according to an embodiment of the present invention, Figure 4 is a plan view showing a lamp module according to an embodiment of the present invention.

[0055] Reference Figures 1 to 4 The lamp module 1000 according to the embodiment of the present invention may include a light source part 1100 and an optical part 1200 .

[0056] In an embodiment of the present invention, an example is given in which the lamp module 1000 is used as a headlamp to illuminate the direction of travel of the vehicle when the vehicle is traveling at night, thereby ensuring the driver's forward field of vision. However, the present invention is not limited thereto. The lamp module 1000 of the present invention can be used not only as a headlamp, but also as a taillight, brake light, fog light, position light, turn signal, daytime running light, reverse light, and other various lamps provided on the vehicle.

[0057] When the lamp module 1000 of the present invention is used as a headlamp, at least one of a low beam pattern that irradiates light downward with a cutoff line of a predetermined shape as a reference, thereby ensuring a wider field of view at a short distance in front of the vehicle, and a high beam pattern that irradiates light relatively upward compared to the low beam pattern, thereby ensuring a wider field of view at a long distance in front of the vehicle, can be formed to prevent glare to the driver of a preceding vehicle, such as a preceding vehicle or an oncoming vehicle.

[0058] In the following embodiments of the present invention, Figure 5 As shown, taking the case where a low beam pattern P having a cut-off line CL of a predetermined shape is formed by the lamp module 1000 of the present invention as an example, the low beam pattern P may include: a high illumination area P1, which has relatively high brightness to improve the field of view distance in front of the vehicle; an extended area P2, which has relatively low brightness compared to the high illumination area P1 to ensure a wider field of view range in front of the vehicle, and is formed to extend from the high illumination area P1 in at least one of the up and down directions and the left and right directions.

[0059] The light source unit 1100 may include a light source 1110 and an optical path adjustment unit 1120 .

[0060] The light source 1110 can generate light having an amount or color suitable for the purpose of the lamp module 1000 of the present invention. In the embodiments of the present invention, a semiconductor light-emitting element such as a light-emitting diode (LED) is used as the light source 1110 as an example for explanation, but the present invention is not limited to this. The light source 1110 can use not only LEDs but also various types of light sources such as laser diodes (LD) or bulbs. Depending on the type of light source, optical elements such as reflectors, mirrors, and prisms can also be used.

[0061] The optical path adjustment portion 1120 can serve to convert the light generated from the light source 1110 within a predetermined light irradiation angle range into parallel light approximately parallel to the optical axis Ax of the light source 1110, with the optical axis Ax passing vertically through the center of the light-emitting surface of the light source 1110 as a reference, and the optical path adjustment portion 1120 can serve to make the light generated from the light source 1110 uniformly incident on the entire optical portion 1200.

[0062] At this time, the situation where the optical path adjustment unit 1120 converts the light generated by the light source 1110 into parallel light that is approximately parallel to the optical axis Ax of the light source 1110 is an example of a situation where the optical axis Ax of the light source 1110 coincides with the center C of the optical path adjustment unit 1120. When the center C of the optical path adjustment unit 1120 is separated from the optical axis Ax of the light source 1110, the parallel light converted by the optical path adjustment unit 1120 may also not be parallel to the optical axis Ax of the light source.

[0063] In an embodiment of the present invention, an aspheric lens is used as the optical path adjustment portion 1120 as an example for explanation, but this is only an example to help understand the present invention and is not limited to this. The optical path adjustment portion 1120 can use not only an aspheric lens but also a Fresnel lens or a total internal reflection (TIR: Total Internal Reflection) lens and other types of lenses that can convert the light generated from the light source portion 1100 into parallel light.

[0064] The optical portion 1200 may emit at least a portion of the light incident from the light source portion 1100 , thereby forming a beam pattern suitable for the application of the lamp module 1000 of the present invention.

[0065] In an embodiment of the present invention, the optical portion 1200 may be tilted at a predetermined angle θ in the left-right direction so that one side thereof is located forward compared to the other side. This is to enable the optical portion 1200 to be disposed according to the body line of the vehicle.

[0066] That is, the lamp module 1000 of the present invention can be housed in an internal space formed by a lamp housing (not shown) and an outer lens (not shown) coupled to the lamp housing, and the optical portion 1200 is tilted so that at least a portion of the optical system of the lamp module 1000 of the present invention can be arranged according to the shape of the outer surface of the outer lens forming a portion of the body line of the vehicle.

[0067] For example, when the outer surface of the outer lens is formed to be inclined or curvatured in the left-right direction so as to be gradually positioned rearward from the vehicle inner side to the vehicle outer side, as described above Figure 4 As shown, the optical portion 1200 may also be understood to be arranged obliquely so as to be gradually located rearward from the vehicle inner side to the vehicle outer side.

[0068] In the embodiment of the present invention, the case where the optical portion 1200 is positioned so that the vehicle outer side is positioned rearward relative to the vehicle inner side in the left-right direction is described as an example, but the present invention is not limited thereto, and the opposite case is also possible.

[0069] In this way, the reason why the optical portion 1200 is arranged to be tilted according to the body line of the vehicle is that when the outer lens is formed to be gradually located rearward from the inside of the vehicle to the outside of the vehicle and the surface of the light emitted from the optical portion 1200 is set to face the front of the vehicle, one side end of the optical portion 1200 will be blocked by the vehicle body around the outer lens, which will not only reduce the appearance design, but also block part of the light emitted from the optical portion 1200, resulting in abnormal formation of the light beam pattern or light loss.

[0070] Figure 6is a front view showing an optical portion according to an embodiment of the present invention, Figure 7 is a rear view showing an optical portion according to an embodiment of the present invention, Figure 8 and Figure 9 is an exploded perspective view showing an optical portion according to an embodiment of the present invention, Figure 10 is a rear view showing a second light transmitting portion formed with a plurality of first shielding members according to an embodiment of the present invention.

[0071] Reference Figures 6 to 10 The optical portion 1200 according to an embodiment of the present invention may include an incident lens portion 1210 and an exit lens portion 1220 .

[0072] The incident lens portion 1210 may include a plurality of incident lenses 1211 and a first light-transmitting portion 1212, and the exit lens portion 1220 may include a plurality of exit lenses 1221 and a second light-transmitting portion 1222. In an embodiment of the present invention, the case where a plurality of incident lenses 1211 and a plurality of exit lenses 1221 use microlenses with a relatively short focal length to achieve the miniaturization of the lamp module 1000 of the present invention is taken as an example for explanation.

[0073] Multiple incident lenses 1211 can be located on the incident surface 1212a of the first light-transmitting portion 1212, and multiple exit lenses 1221 can be located on the exit surface 1222b of the second light-transmitting portion 1222. In this case, the exit surface 1212b of the first light-transmitting portion 1212 and the incident surface 1222a of the second light-transmitting portion 1222 are arranged to abut each other, so that light incident on the multiple incident lenses 1211 can be guided to the multiple exit lenses 1221 by the first light-transmitting portion 1212 and the second light-transmitting portion 1222 and emitted.

[0074] In the embodiment of the present invention, the thickness t1 of the first light-transmitting portion 1212 is formed to be greater than the thickness t2 of the second light-transmitting portion 1222 as an example. This is to prevent the light incident on any one of the multiple incident lenses 1211 from traveling toward the corresponding output lens among the multiple output lenses 1221 and simultaneously traveling toward the output lens adjacent to the corresponding output lens, resulting in the light being irradiated to an unnecessary position.

[0075] At this time, in any one of the emission surface 1212b of the first light-transmitting portion 1212 and the incident surface 1222a of the second light-transmitting portion 1222, a plurality of first shielding members 1300 that block a portion of the light traveling to the corresponding emission lens in the plurality of emission lenses 1221 can be formed by deposition or coating, and the plurality of first shielding members 1300 play the role of forming a low beam pattern of light irradiating downward based on a predetermined cut-off line CL by means of the lamp module 1000 of the present invention. According to the beam pattern formed by the lamp module 1000 of the present invention, the shape, size, position, etc. of the plurality of first shielding members 1300 can be changed or omitted.

[0076] The reason why multiple first shielding members 1300 are formed on one of the emission surface 1212b of the first light transmission portion 1212 and the incident surface 1222a of the second light transmission portion 1222 is that the rear focus of each of the multiple emission lenses 1221 is located at the boundary surface where the emission surface 1212b of the first light transmission portion 1212 and the incident surface 1222a of the second light transmission portion 1222 abut each other.

[0077] The plurality of first shielding elements 1300 can be arranged in a vertically aligned row extending in the left-right direction, and can be arranged to be tilted at a predetermined angle relative to a horizontal line S, so that no step difference is generated between adjacent left-right shielding elements in the plurality of first shielding elements 1300. The arrangement of the plurality of first shielding elements 1300 in a tilted row extending in the left-right direction can be understood as the arrangement of a line G connecting the same point of each of the left-right shielding elements in the plurality of first shielding elements 1300, which are arranged in the left-right direction, at a predetermined angle relative to the horizontal line S.

[0078] A protrusion 1310 protruding upward may be formed at the upper end of at least one of the plurality of first shielding members 1300 . The protrusion 1310 may reduce the brightness of light irradiated to a position corresponding to a preceding vehicle, thereby preventing glare to the driver of the preceding vehicle.

[0079] At this time, the reason for arranging the plurality of first shielding members 1300 in a row extending in the left-right direction at an inclined angle is that, for example, Figure 11 As shown, when a step difference T is generated between the first shielding members 1300 adjacent to each other in the left-right direction, a portion of the cut-off line CL of the low beam pattern P will produce a higher area A2 or a lower area A1 compared to the normal position, which may reduce the driver's field of vision or cause glare to the driver of the vehicle ahead.

[0080] In addition, when the parallel light converted by the optical path adjusting portion 1120 is emitted in a manner parallel to the optical axis Ax of the light source 1110, the light blocked by the plurality of first shielding members 1300 will be relatively increased, thereby possibly reducing the light efficiency. Therefore, in the embodiment of the present invention, Figure 12 As shown, the light source 1110 can be arranged on the lower side with the center C of the optical path adjustment portion 1120 as a reference. In this case, as shown in FIG. Figure 13 As shown, since the light emitted from the optical path adjusting portion 1120 travels upward relative to the optical axis Ax of the light source 1110 , the light blocked by the first shielding members 1300 is relatively reduced, thereby improving light efficiency.

[0081] At this time, the situation where the light source 1110 is located on the lower side with the center C of the optical path adjustment part 1120 as the reference may include not only the situation where the light source 1110 is located on the lower side as a whole, but also the situation where the optical axis Ax of the light source 1110 is located on the lower side compared to the center C of the optical path adjustment part 1120.

[0082] That is, the upper end center of each of the multiple first shielding members 1300 can be located at or near the rear focus of the corresponding emission lens in the multiple emission lenses 1221. In this case, the light incident on the multiple input lenses 1211 can be focused near the upper end center of the multiple first shielding members 1300. However, in the embodiment of the present invention, since the light emitted from the optical path adjustment portion 1120 travels relatively toward the upper side, the location where the light incident on the multiple input lenses 1211 is focused becomes relatively higher. Therefore, the light blocked by the multiple first shielding members 1300 can be relatively reduced, thereby improving light efficiency.

[0083] at this time, Figure 13 The dotted line represents the path of light when the optical axis Ax of the light source 1110 coincides with the center C of the optical path adjustment part 1120, and the solid line represents the path of light when the optical axis Ax of the light source 1110 is located on the lower side with respect to the center C of the optical path adjustment part 1120.

[0084] In addition, the situation where the light source 1110 is located on the lower side with respect to the center C of the optical path adjustment part 1120 can include the situation where the light source 1110 as a whole is located on the lower side compared to the center C of the optical path adjustment part 1120 and the situation where the optical axis Ax of the light source 1110 is located on the lower side compared to the center C of the optical path adjustment part 1120.

[0085] In addition, a plurality of second shields 1400 corresponding to each of the plurality of first shields 1300 may be formed on the emission surface 1222 b of the second light transmitting portion 1222 .

[0086] An upper end of each of the plurality of second shields 1400 may be located below an upper end of a corresponding first shield among the plurality of first shields 1300 to prevent glare from being generated in a beam pattern formed by the lamp module 1000 of the present invention.

[0087] That is, glare is mainly generated by light incident from the bottom of each of the plurality of emission lenses 1221 , and thus the plurality of second shields 1400 prevents the generation of glare by blocking a portion of light incident to the lower portion of each of the plurality of emission lenses 1221 .

[0088] In addition, when the upper end of each of the second shielding members 1400 is located on the upper side compared to the upper end of the corresponding first shielding member among the multiple first shielding members 1300, it may happen that the cutoff line of the beam pattern formed by the lamp module 1000 of the present invention cannot be formed in a normal position. Therefore, it is preferred that the upper end of each of the second shielding members 1400 is located on the lower side compared to the upper end of the corresponding first shielding member among the multiple first shielding members 1300.

[0089] Multiple incident lenses 1211 can be divided into multiple parts S1, S2 with different light distribution characteristics. Multiple parts S1, S2 can be arranged in the up and down directions. Multiple parts S1, S2 with different light distribution characteristics can be understood as at least one of the position, size, shape, and brightness of the light-irradiated area being different from each other.

[0090] The plurality of sections S1 and S2 may include a first section S1 and a second section S2 . The first section S1 may include at least one first lens column R1 , and the second section S2 may include at least one second lens column R2 .

[0091] At this time, the at least one first lens column R1 and the at least one second lens column R2 may be obliquely formed so that one side in the left-right direction is located above the other side as the plurality of first shielding members 1300 are arranged in a column extending in the left-right direction at an inclined angle.

[0092] The optical portion 1200 may have the first portion S1 and the second portion S2 alternately arranged in at least a portion of the region. This is to form an overall uniform image using the light emitted from the lamp module 1000 of the present invention.

[0093] For example, when only the first portion S1 is formed in the upper portion and only the second portion S2 is formed in the lower portion in the vertical direction, the difference in light distribution characteristics between the first lens array R1 and the second lens array R2 reduces image uniformity, creates a sense of heterogeneity, and reduces recognition. Therefore, by alternating the first portion S1 and the second portion S2, the overall image uniformity is improved while reducing the sense of heterogeneity.

[0094] In an embodiment of the present invention, although the case where the first part S1 and the second part S2 are alternately arranged in the upper area and the lower area of ​​the optical part 1200 is used as an example to illustrate, this is only an example to help understand the present invention and is not limited to this. In order to meet the light distribution characteristics of the beam pattern formed by the lamp module 1000, the first part S1 and the second part S2 can be alternately arranged in the required area in the optical part 1200.

[0095] In addition, in an embodiment of the present invention, preferably, the first lens array R1 is formed in two or more continuous rows and the second lens array R2 is formed in a single row. This is to ensure that the beam pattern formed by the lamp module 1000 of the present invention satisfies the required light distribution characteristics. A detailed description of this will be given later.

[0096] The plurality of incident lenses 1211 may include a first incident lens 1211 a forming a first lens column R1 and a second incident lens 1211 b forming a second lens column R2 .

[0097] The first incident lens 1211a can enhance the high illumination area P1 and the extended area P2 of the low beam pattern P formed by the lamp module 1000 of the present invention. In an embodiment of the present invention, the first lens column R1 can be formed by more than two first incident lenses 1211a arranged in the left-right direction.

[0098] Figure 14 is a cross-sectional view showing a first incident lens and an exit lens corresponding to the first incident lens according to an embodiment of the present invention, Figure 15 is a schematic diagram illustrating a path of light formed by a first incident lens according to an embodiment of the present invention.

[0099] Reference Figure 14 and Figure 15 According to an embodiment of the present invention, the first incident lens 1211a can be divided into a plurality of incident areas A1, A2, and A3 having different light-gathering properties from each other, and the light incident to the first incident lens 1211a can be emitted from at least one of the first and second emission lenses 1221a and 1221b adjacent to each other in the plurality of emission lenses 1221.

[0100] In the embodiment of the present invention, although the case where one first incident lens 1211a corresponds to two emitting lenses 1221a and 1221b is described as an example, the present invention is not limited thereto. One first incident lens 1211a may correspond to at least one emitting lens.

[0101] In addition, the fact that multiple incident areas A1, A2, and A3 have different focusing properties means that the focusing points of light incident on each of the multiple incident areas A1, A2, and A3 are different from each other along at least one direction. The situation of having different focusing properties can include not only the situation where light is focused at one point, but also the situation where light travels in the form of parallel light.

[0102] The plurality of incident areas A1 , A2 , and A3 may include a first incident area A1 , a second incident area A2 , and a third incident area A3 .

[0103] The light L11 incident to the first incident area A1 may be condensed at a rear focus of any one of the first and second exit lenses 1221 a and 1221 b , so that the high illumination area P1 of the low-beam pattern P can be enhanced.

[0104] That is, when the optical portion 1200 is tilted so that one side is located rearward compared to the other side in the left-right direction, the light incident on the optical portion 1200 is refracted and travels toward the other side located rearward on both sides of the optical portion 1200. In this case, the brightness of the high illumination area P1 of the low beam pattern P will be relatively reduced. Therefore, the light L11 incident on the first incident area A1 is emitted in a manner substantially parallel to the optical axis Ax of the light source 1110, thereby enhancing the high illumination area P1 to improve the brightness.

[0105] The light L12 incident on the second incident area A2 can be emitted through at least one of the first emission lens 1221a and the second emission lens 1221b, and can be diffused more widely in the left and right directions, thereby being able to enhance the expansion area P2. To this end, by focusing the light on the location where the rear focus of the first emission lens 1221a and the second emission lens 1221b is located (that is, behind the surface where the emission surface 1212b of the first light-transmitting portion 1212 and the incident surface 1222a of the second light-transmitting portion 1222 abut each other), a part of the light L12 incident on the second incident area A2 is emitted to one side and the other part is emitted to the other side, and diffused more widely in opposite directions, thereby expanding the two sides of the expansion area P2.

[0106] At this time, the first incident area A1 may be formed to have a larger width than the second incident area A2, in order to ensure that the high illumination area P1 formed by the lamp module 1000 of the present invention has sufficient brightness.

[0107] The third incident area A3 can be formed between the first incident area A1 and the second incident area A2, and the light L13 incident to the third incident area A3 travels as parallel light, thereby forming the extended area P2 of the low beam pattern P, but is not limited to this. When the extended area formed by the second part S2 described later fully meets the light distribution characteristics, the third incident area A3 can be omitted, and the first incident area A1 and the second incident area A2 can be formed to abut each other.

[0108] At this time, the third incident area A3 may have a cylindrical lens shape. In order to focus the light incident from the light source unit 1100 in the vertical direction, it may have a semi-cylindrical shape having a curvature in the vertical direction and extending long in the horizontal direction.

[0109] The traveling direction of light incident on each of the first incident area A1 , the second incident area A2 , and the third incident area A3 may be changed according to the shape, curvature, etc. of each incident area.

[0110] Similar to the third incident area A3 mentioned above, the second incident lens 1211b, as a cylindrical lens, can have a curvature so that the light incident from the light source unit 1100 is focused in the up and down directions, and can have a semi-cylindrical shape extending longer in the left and right directions, so that the light incident from the light source unit 1100 travels in the left and right directions as parallel light.

[0111] At this time, the second lens row R2 can be formed using a single second incident lens 1211 b , because in the low-beam pattern P, the field of view distance ensured by the high-illuminance area P1 plays a relatively more important role.

[0112] Figure 16 is a schematic diagram illustrating a path of light formed by a second incident lens according to an embodiment of the present invention.

[0113] Reference Figure 16 The light L2 incident on the second incident lens 1211b according to the embodiment of the present invention can be incident on the corresponding emission lens among the multiple emission lenses 1221 and diffused in the left and right directions, thereby forming an extended area that meets the light distribution characteristics of the lamp module 1000 of the present invention.

[0114] At this time, the second incident lens 1211b can be refracted toward the other side located behind the two sides of the optical portion 1200 according to the inclination angle θ of the optical portion 1200, thereby traveling in the form of parallel light, and at least a portion of the light incident on the first incident lens 1211a is emitted in a diffuse manner along the left and right directions through the corresponding emission lens among the multiple emission lenses 1221, thereby forming an extended area P2 of the low beam pattern P formed by the lamp module 1000 of the present invention.

[0115] In addition, if Figure 17 As shown, the central axis Cx of each of the multiple emission lenses 1221 can be formed to be inclined at a predetermined angle in the left and right directions with respect to the reference axis Rx parallel to the optical axis Ax of the light source unit 1100. This is to allow light to be emitted forward even when the optical unit 1200 is tilted.

[0116] That is, in an embodiment of the present invention, since the optical portion 1200 is tilted so that the outer side of the vehicle is located rearward compared to the inner side of the vehicle in the left-right direction, the center axis Cx of each of the multiple emission lenses 1221 can be tilted in a direction toward the inner side of the vehicle. In this case, each of the multiple emission lenses 1221 can have a shape in which the outer side area of ​​the vehicle is larger than the inner side area of ​​the vehicle with the center axis Cx as a reference.

[0117] At this time, the central axis Cx of each of the plurality of emission lenses 1221 refers to an axis of rotational symmetry of each of the plurality of emission lenses. Each of the plurality of emission lenses 1221 may have a shape that is at least partially rotationally symmetric with respect to the central axis Cx.

[0118] In the above embodiment, although a single lamp module 1000 is used as an example for description, the present invention is not limited thereto. Depending on the required light distribution characteristics, more than two lamp modules 1000 may be arranged in at least one direction.

[0119] Figure 18 1 is a plan view showing a vehicle lamp according to an embodiment of the present invention.

[0120] Reference Figure 18 The vehicle lamp 1 according to the embodiment of the present invention may include a plurality of lamp modules 1000 arranged along a direction. The plurality of lamp modules 1000 may play a similar role to the lamp module 1000 in the above-mentioned embodiment, and detailed description of their roles will be omitted.

[0121] In an embodiment of the present invention, a case where a plurality of lamp modules 1000 are arranged in the left-right direction is used as an example for explanation. A portion of the lamp modules 1000' located on the inner side of the vehicle in the left-right direction is referred to as a first group G1, and another portion of the lamp modules 1000'' located on the outer side of the vehicle compared to the first group G1 is referred to as a second group G2.

[0122] At this time, the optical portion 1200 of each of the plurality of lamp modules 1000 may be formed as one body, in order to achieve a unified appearance when viewed from the outside.

[0123] Among the plurality of lamp modules 1000 , the lamp modules 1000 ′ belonging to the first group G1 and the lamp modules 1000 ″ belonging to the second group G2 may be arranged such that the light sources 1110 are spaced apart at different intervals in the left-right direction with respect to the center C of the optical path adjusting portion 1120 .

[0124] For example, in the case where the high illumination area P1 of the low beam pattern P is formed by the first group G1 and the extended area P2 of the low beam pattern P is formed by the second group G2, as shown in FIG. Figure 19 and Figure 20 As shown, among the plurality of lamp modules 1000, the light source 1110 of the lamp module 1000' belonging to the first group G1 is closer to the center C of the optical path adjustment portion 1120 than the light source 1110 of the lamp module 1000'' belonging to the second group G2, so as to improve the focusing performance generated by the first group G1.

[0125] at this time, Figure 19 is an example showing the interval d1 between the light source 1110 and the center C of the optical path adjustment portion 1120 in the lamp module 1000 ′ belonging to the first group G1. Figure 20 FIG. 1 is an example showing an interval d2 between the light source 1110 and the center C of the optical path adjustment portion 1120 in the lamp module 1000 ″ belonging to the second group G2 .

[0126] In summary, the lamp module of the present invention and the vehicle lamp including the lamp module are capable of enhancing the high illumination area P1 and the extended area P2 of the low beam pattern P without adding a separate optical system by configuring a portion of the multiple incident lenses 1211 into multiple areas A1, A2, and A3 with different focusing properties, so as to form an optimal beam pattern while simplifying the structure.

[0127] In addition, since the light distribution characteristics of the beam pattern can be appropriately adjusted by adjusting the position of the light source 1110 based on the center C of the optical path adjustment part 1120, there is no need to separately equip an optical system according to the light distribution characteristics, thereby simplifying the structure and reducing costs.

[0128] It should be understood by those with ordinary knowledge in the technical field to which the present invention belongs that the present invention can be implemented in other specific forms without changing the technical concept or essential features. Therefore, the embodiments described above are exemplary in all aspects and should be understood as non-limiting embodiments. The scope of the present invention is not limited by the foregoing detailed description, but by the claims, and all changes or deformations that can be derived from the meaning, scope and equivalent concepts of the claims should be interpreted as being included in the scope of the present invention.

Claims

1. A lighting module, comprising: Light source department; as well as an optical portion that transmits at least a portion of the light incident from the light source portion to form a predetermined beam pattern, The optical portion is tilted so that one side in the left-right direction is located forward of the other side. The optical part includes: An incident lens section, comprising a plurality of incident lenses; as well as The emission lens unit includes a plurality of emission lenses corresponding to each of the plurality of incident lenses.

2. The lamp module according to claim 1, wherein: The plurality of incident lenses are divided into a plurality of parts arranged in an up-down direction, The multiple parts include: a first portion having a first light distribution characteristic; and The second part has a second light distribution characteristic, Wherein, in the optical portion, the first portion and the second portion are alternately arranged in at least a portion of the region.

3. The lamp module according to claim 2, wherein: In the optical portion, the first portions and the second portions are alternately arranged in at least one of an upper region and a lower region.

4. The lamp module according to claim 2, wherein: The first portion includes at least one first lens array formed to extend in the left-right direction. The second portion includes at least one second lens column formed to extend in the left-right direction. Wherein, the multiple incident lenses include: a first incident lens forming the at least one first lens column and including a plurality of incident areas having different light-condensing properties from each other; and The second incident lens forms the at least one second lens column.

5. The lamp module according to claim 4, wherein: The second incident lens is a cylindrical lens. The lamp module according to claim 4 , wherein: The at least one first lens array includes a plurality of first lens arrays arranged in a vertical direction. The at least one second lens column comprises a single second lens column.

7. The lamp module according to claim 4, wherein: The number of the first lens columns is greater than the number of the second lens columns.

8. The lamp module according to claim 4, wherein: The light incident on the first incident lens is emitted through at least one of a first emission lens and a second emission lens disposed adjacent to each other among the plurality of emission lenses. The plurality of incident regions include a first incident region and a second incident region having widths different from each other in the left-right direction.

9. The lamp module according to claim 8, wherein: The first incident area causes light incident on the first incident lens to be emitted through one of the first and second exit lenses to be focused at or near the rear focus of the corresponding exit lens of the first and second exit lenses, thereby enhancing the high illumination area of ​​the beam pattern.

10. The lamp module according to claim 8, wherein: The second incident region causes the light incident on the second incident lens to be emitted through at least one of the first and second exit lenses to be condensed at a location behind the first incident region, thereby increasing the expansion area of ​​the beam pattern.

11. The lamp module according to claim 8, wherein The plurality of incident areas further include: The third incident region is formed between the first incident region and the second incident region so that the light incident on the first incident lens travels as parallel light.

12. The lamp module according to claim 1, wherein: The central axis of each of the plurality of emission lenses is arranged to be inclined in a direction toward the optical portion with respect to a reference axis parallel to the optical axis of the light source portion. Each of the plurality of emission lenses is formed so that a region facing one side of the optical portion is larger than a region facing the other side with respect to the central axis.

13. The lamp module according to claim 1, wherein The light source unit includes: light source; and an optical path adjusting unit for adjusting the path of light generated from the light source, The light source is located at the lower side with the center of the optical path adjustment portion as a reference.

14. A vehicle lamp, comprising a plurality of lamp modules arranged in a direction to form a beam pattern, wherein: Each of the plurality of lamp modules comprises: a light source portion; and an optical portion that transmits at least a portion of the light incident from the light source portion to form a predetermined beam pattern, The optical portion is tilted so that one side in the left-right direction is located forward of the other side. The optical part includes: an incident lens section including a plurality of incident lenses; and The emission lens unit includes a plurality of emission lenses corresponding to each of the plurality of incident lenses.

15. The vehicle lamp according to claim 14, wherein The light source portion of each of the plurality of lamp modules comprises: light source; and an optical path adjusting unit for adjusting the path of light generated from the light source, The light source is located at the lower side with the center of the optical path adjustment portion as a reference.

16. The vehicle lamp according to claim 15, wherein One of the plurality of lamp modules has the light source disposed closer to the center of the optical path adjustment portion in the left-right direction than the other lamp modules.

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