Lamp for vehicle

Abstract

The present invention relates to a vehicle lamp, and more specifically, to a vehicle lamp capable of forming various beam patterns while reducing the installation space. A vehicle lamp according to an embodiment of the present invention is a vehicle lamp that forms one or more beam patterns by a light-emitting unit comprising at least one lamp module, wherein the light-emitting unit comprises a first lamp module, and the first lamp module comprises a first light source part; and a first lens part that forms at least one of a first beam pattern and a second beam pattern by light emitted from the first light source part, and the first lens part may comprise a first incident part into which light emitted from the first light source part is incident; and a first output part into which light transmitted by a transmission part among the light incident on the first incident part is emitted.

Description

Technology Field

[0001] The present invention relates to a vehicle lamp, and more specifically, to a vehicle lamp capable of forming various beam patterns while reducing the installation space. Background Technology

[0002] Generally, vehicles are equipped with various types of lamps that have lighting functions to easily identify objects located around the vehicle during nighttime driving and signal functions to inform surrounding vehicles or pedestrians of the vehicle's driving status.

[0003] For example, headlamps and fog lamps are primarily intended for lighting functions, while turn signal lamps, tail lamps, and brake lamps are primarily intended for signaling functions, and the installation standards and specifications for each lamp are stipulated by law so that each lamp can fully perform its respective function.

[0004] In order to form multiple different beam patterns using such vehicle lamps, a separate optical system corresponding to each beam pattern must be provided; this increases the number of parts, which not only increases installation space but also raises costs.

[0005] Therefore, there is a need for a method that enables the formation of various beam patterns while reducing the installation space required for beam pattern formation. Prior art literature

[0006] Published Patent Application No. 10-2021-0045730 (Published April 27, 2021) The problem to be solved

[0007] The problem that the present invention aims to solve is to provide a vehicle lamp that reduces the number of parts and thus reduces installation space while reducing costs by allowing components for forming multiple different beam patterns to be shared.

[0008] The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0009] To achieve the above objective, a vehicle lamp according to an embodiment of the present invention is a vehicle lamp that forms one or more beam patterns by a light-emitting unit comprising at least one lamp module, wherein the light-emitting unit comprises a first lamp module, and the first lamp module comprises a first light source part; and a first lens part that forms at least one of a first beam pattern and a second beam pattern by light emitted from the first light source part, and the first lens part may comprise a first incident part into which light emitted from the first light source part is incident; and a first output part into which light transmitted by a transmission part among the light incident on the first incident part is emitted.

[0010] The first light source unit comprises at least one upper light source emitting light for forming the first beam pattern; and at least one lower light source emitting light for forming the second beam pattern, and the first incident unit may comprise at least one upper incident module into which light emitted from the at least one upper light source is incident; and at least one lower incident module into which light emitted from the at least one lower light source is incident.

[0011] Light incident on the at least one upper incident module is guided to proceed to the first exit module through the transmission unit, and light incident on the at least one lower incident module can be guided to proceed to the first exit module through a transmission surface formed on the lower surface of the transmission unit and a re-incident surface formed in front of the transmission surface and spaced apart from the transmission surface.

[0012] The above transmission part may have a shield part formed on its lower surface such that the front end is located at the rear focus of the first emission part, the transmission surface may be formed to be connected to the rear end of the shield part, and the re-incident surface may be formed to be connected to the front end of the shield part.

[0013] The above-mentioned transmission surface is formed to have a curved shape that is convex toward the front, and the above-mentioned re-incident surface may be formed to have a curved shape that is convex toward the rear.

[0014] The above-mentioned transmission member has a concave portion formed on its upper surface, and the concave portion can block light that passes through the upper surface of the transmission member.

[0015] The first emission unit may include an emission region in which light for forming a third beam pattern is emitted among the light incident on the first incidence unit.

[0016] The light-emitting unit may further include a second lamp module located on at least one of the two sides of the first lamp module.

[0017] The first lamp module and the second lamp module form pattern regions having different light distribution characteristics, and at least one of the first beam pattern and the second beam pattern can be formed by synthesizing the pattern regions formed by each of the first lamp module and the second lamp module.

[0018] The second lamp module comprises a second light source unit; and a second lens unit that forms at least one of the first beam pattern and the second beam pattern by light emitted from the second light source unit, wherein the second lens unit may include a second incident unit into which light emitted from the second light source unit is incident; and a second output unit into which at least a portion of the light incident on the second incident unit is emitted.

[0019] The second light source unit comprises at least one upper light source emitting light for forming the first beam pattern; and at least one lower light source emitting light for forming the second beam pattern, and the second incident unit may comprise at least one upper incident module into which light emitted from the at least one upper light source is incident; and at least one lower incident module into which light emitted from the at least one lower light source is incident.

[0020] The second output section above includes an upper output section and a lower output section, and the lower output section may be located in front of the upper output section.

[0021] The upper output section above may be located at the rear relative to the first output section.

[0022] The light emitted through the upper emission section is concentrated at the edge formed at the top of the lower emission section to form the first beam pattern, and the light emitted through the lower emission section can form the second beam pattern.

[0023] The above edge portion may have a position corresponding to the rear focus of the first emission portion in the front-rear direction and the up-down direction.

[0024] The lower emission portion is formed at the front end of the light guide portion extending forward from the second incidence portion, and the light guide portion may be formed with a surface sloped upward forward so that its vertical length becomes shorter as it moves forward.

[0025] The upper portion above may be formed to have a curved shape that is convex toward the front.

[0026] The apparatus further includes an optical unit located in front of the light-emitting unit, wherein the optical unit may include at least one optical lens corresponding to the at least one lamp module.

[0027] The above at least one lamp module includes a plurality of lamp modules, and the at least one optical lens includes a plurality of optical lenses corresponding to each of the plurality of lamp modules, and a step difference may be formed in the front-rear direction between the incident surfaces of adjacent optical lenses among the plurality of optical lenses.

[0028] Each of the above-mentioned plurality of optical lenses can form a single surface.

[0029] Other specific details of the present invention are included in the detailed description and drawings. Effects of the invention

[0030] According to the vehicle lamp of the present invention as described above, one or more of the following effects are provided.

[0031] Since the lens section can be shared for forming multiple different beam patterns, the number of parts is reduced, which has the effect of reducing installation space and lowering costs.

[0032] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0033] FIGS. 1 to 3 are perspective views showing a vehicle lamp according to an embodiment of the present invention. FIG. 4 is a plan view showing a vehicle lamp according to an embodiment of the present invention. Fig. 5 is a cross-sectional view along line A-A' of Fig. 4. FIG. 6 is a schematic diagram showing a first beam pattern formed by a vehicle lamp according to an embodiment of the present invention. FIG. 7 is a schematic diagram showing a second beam pattern formed by a vehicle lamp according to an embodiment of the present invention. FIG. 8 is a schematic diagram showing the light path of a vehicle lamp according to an embodiment of the present invention. FIG. 9 is a schematic diagram showing a light path by an emission area according to an embodiment of the present invention. FIG. 10 is a schematic diagram showing a third beam pattern according to an embodiment of the present invention. FIG. 11 is a schematic diagram showing a light path by a concave portion according to an embodiment of the present invention. FIGS. 12 to 14 are perspective views showing a vehicle lamp according to another embodiment of the present invention. FIG. 15 is a plan view showing a vehicle lamp according to another embodiment of the present invention. FIG. 16 is a cross-sectional view of line BB' of FIG. 15. FIG. 17 is a schematic diagram showing the light path of a vehicle lamp according to another embodiment of the present invention. Specific details for implementing the invention

[0034] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0035] Accordingly, in some embodiments, well-known process steps, well-known structures, and well-known techniques are not specifically described to avoid the invention being interpreted ambiguously.

[0036] The terms used herein are for describing the embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used herein, "comprises" and / or "comprising" are used in the sense that they do not exclude the presence or addition of one or more other components, steps, actions, and / or elements other than those mentioned. And, "and / or" includes each of the mentioned items and all combinations of one or more.

[0037] Furthermore, the embodiments described herein will be explained with reference to cross-sectional views and / or schematic drawings, which are exemplary illustrations of the invention. Accordingly, the form of the exemplary drawings may be modified due to manufacturing techniques and / or tolerances, etc. Therefore, the embodiments of the invention are not limited to the specific forms depicted but include variations in form resulting from the manufacturing process. Additionally, in each drawing of the invention, each component may be depicted slightly enlarged or reduced for convenience of explanation. Throughout the specification, the same reference numerals refer to the same components.

[0038] Hereinafter, the present invention will be described with reference to the drawings for explaining a vehicle lamp according to embodiments of the present invention.

[0039] FIGS. 1 to 3 are perspective views showing a vehicle lamp according to an embodiment of the present invention, FIG. 4 is a plan view showing a vehicle lamp according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view along line A-A' of FIG. 4.

[0040] Referring to FIGS. 1 to 5, a vehicle lamp (1) according to an embodiment of the present invention may include a light-emitting unit (10) and an optical unit (20).

[0041] In an embodiment of the present invention, the vehicle lamp (1) is described as being used as a headlamp to ensure a forward view of the vehicle by irradiating light in the direction of travel when the vehicle is traveling at night or in a dark place such as a tunnel, but is not limited thereto. The vehicle lamp (1) of the present invention can be used not only as a headlamp but also as various lamps installed on the vehicle, such as a tail lamp, brake lamp, daytime running lamp, turn signal lamp, fog lamp, backup lamp, position lamp, etc. The vehicle lamp (1) of the present invention may be used for any one of the various uses mentioned above, or may be used for two or more uses together.

[0042] In addition, in an embodiment of the present invention, the X-axis represents the vehicle width direction as a left-right direction, the Y-axis represents the driving direction (forward or backward) as a front-back direction, and the Z-axis represents the vehicle height direction as an up-down direction. However, this is not limited thereto, and the directions that the X-axis, Y-axis, and Z-axis actually represent may vary depending on the location or direction in which the vehicle lamp (1) of the present invention is installed.

[0043] When the vehicle lamp (1) of the present invention is used as a headlamp, at least one of a low beam pattern can be formed so that light is irradiated downward from a cut-off line to prevent glare to the driver of a vehicle ahead, such as a preceding vehicle or an oncoming vehicle, thereby ensuring a wide field of view for the short distance ahead of the vehicle, and a high beam pattern can be formed so that a long field of view for the long distance ahead of the vehicle is ensured. When the high beam pattern is formed, the low beam pattern is formed together so that a wide field of view and a long field of view for the front of the vehicle are ensured.

[0044] The light-emitting unit (10) may include at least one lamp module (1000) that emits light to form one or more beam patterns. In the embodiment of the present invention, the case in which the light-emitting unit (10) includes a single lamp module (1000) (hereinafter referred to as the "first lamp module") is described as an example, but is not limited thereto. Depending on the light distribution characteristics of the beam pattern formed by the vehicle lamp (1) of the present invention, that is, the location, size, shape, brightness, etc. of the area where light is irradiated, the number and location of the lamp modules included in the light-emitting unit (10) may be varied.

[0045] The first lamp module (1000) may include a first light source part (1100) and a first lens part (1200).

[0046] The first light source unit (1100) may include at least one upper light source (1110) that emits light for forming a first beam pattern and at least one lower light source (1120) that emits light for forming a second beam pattern.

[0047] In an embodiment of the present invention, at least one upper light source (1110) is included in a plurality of upper light sources (1110) arranged in a left-right direction, and at least one lower light source (1120) is included in a plurality of lower light sources (1120) arranged in a left-right direction. However, this is not limited thereto, and the number and arrangement direction of the upper light source (1110) and the lower light source (1120) can be varied according to the light distribution characteristics of the beam pattern formed by the vehicle lamp (1) of the present invention.

[0048] In addition, in an embodiment of the present invention, the first beam pattern is a low beam pattern (P1) in which light is irradiated downwards based on a cut-off line (CL) of a predetermined shape as shown in FIG. 6 to ensure a wide field of view for the near distance in front of the vehicle, and the second beam pattern is a high beam pattern (P2) in which at least a portion is located above the cut-off line (CL) as shown in FIG. 7 to ensure a long field of view for the far distance in front of the vehicle.

[0049] At this time, the low beam pattern (P1) may include a high-illumination area (P11) having a relatively high light intensity to form the center of the cut-off line (CL) and to improve the viewing distance, and a spread area (P12) having a lower light intensity than the high-illumination area (P11) and to improve the viewing range by extending the high-illumination area (P11) in at least one of the left-right direction and the up-down direction.

[0050] In addition, the high beam pattern (P2) may also include a high-illumination area and a spread area similar to the low beam pattern (P1) described above, and the position, size, shape, brightness, etc. of each of the high-illumination area and the spread area in the high beam pattern (P2) may vary according to the required light distribution characteristics.

[0051] The first lens unit (1200) may include a first incident unit (1210) and a first exit unit (1220), and at least a portion of the light incident on the first incident unit (1210) may be transmitted to the first exit unit (1220) by a transmission unit (1230).

[0052] The first incident section (1210) may include at least one upper incident module (1211) into which light emitted from at least one upper light source (1110) is incident, and at least one lower incident module (1212) into which light emitted from at least one lower light source (1120) is incident.

[0053] At least one upper incident module (1211) may include a center surface (1211a), a protruding surface (1211b) protruding backward from the edge of the center surface (1211a) toward at least one upper light source (1110), and a reflective surface (1211c) that reflects light incident on the protruding surface (1211b) to proceed forward, and the path of light incident on the at least one upper incident module (1211) may be determined according to the curvature or formation angle of each of the center surface (1211a), the protruding surface (1211b), and the reflective surface (1211c).

[0054] Additionally, at least one lower incident module (1212) may also include a center surface (1212a), a protruding surface (1212b) protruding backward from the edge of the center surface (1212a) toward at least one lower light source (1120), and a reflective surface (1212c) that reflects light incident on the protruding surface (1212b) to proceed forward, similar to at least one upper incident module (1211). The path of light incident on at least one lower incident module (1212) may be determined according to the curvature or formation angle of each of the center surface (1212a), the protruding surface (1212b), and the reflective surface (1212c).

[0055] The above-described at least one upper incident module (1211) and at least one lower incident module (1212) can be understood as being of the TIR (Total Internal Reflection) lens type and used to achieve a relatively high concentration of light.

[0056] The first emission section (1220) may be positioned in front of the first incidence section (1210) to allow light incident on the first incidence section (1210) to be emitted, and the first emission section (1220) may be formed to have a convex curved shape toward the front to concentrate the emitted light, and the first incidence section (1210) and the first emission section (1220) may be formed at the rear and front ends of the transmission section (1230), respectively, so that they can be formed integrally with each other.

[0057] At this time, a shield portion (1240) may be formed on the lower surface of the transmission portion (1230) such that a cut-off line (CL) of the low beam pattern (P1) is formed as shown in FIG. 6 above, with the front portion (1241) located at or near the rear focus (F) of the first output portion (1220).

[0058] That is, since light traveling to the first emission unit (1220) through the lower space relative to the rear focus (F) of the first emission unit (1220) is refracted and emitted in an upward direction, it may be irradiated on the upper side of the cut-off line (CL) and cause glare. Therefore, the front end (1241) of the shield unit (1240) is positioned at the rear focus (F) of the first emission unit (1220) so that light traveling to the first emission unit (1220) through the lower space relative to the rear focus (F) of the first emission unit (1220) is blocked.

[0059] Additionally, the shield portion (1240) can reduce light loss caused by light being blocked to form a cut-off line (CL) by reflecting light traveling downward relative to the rear focus (F) of the first output portion (1220) on the surface between the front portion (1241) and the rear portion (1242) upward forward so that it is emitted through the first output portion (1220).

[0060] The rear focus (F) of the first emission unit (1220) can have a shape that is a point, line, plane, space, or a combination thereof, depending on the area where light is actually concentrated.

[0061] FIG. 8 is a schematic diagram showing the light path of a vehicle lamp according to an embodiment of the present invention.

[0062] Referring to FIG. 8, light (L11) incident on at least one upper incident module (1211) can be concentrated at the rear focus (F) of the first output unit (1220) or near therein through the space between the upper surface of the transmission unit (1230) and the shield unit (1240) and proceed to the first output unit (1220) so as to form the low beam pattern (P1) of FIG. 6 described above.

[0063] Additionally, light (L12) incident on at least one lower incident module (1212) can pass through a transmission surface (1251) formed to extend downward from the rear end (1242) of the shield part (1240), and the light (L12) passing through the transmission surface (1251) can pass through a re-incident surface (1252) formed to extend downward from the front end (1241) of the shield part (1240) and proceed to the first exit part (1220) to form the high beam pattern (P2) of FIG. 7 described above.

[0064] In an embodiment of the present invention, the case in which the shield portion (1240) is formed along an axis passing through the rear focus (F) of the first emission portion (1220) in the front-rear direction is described as an example. In this case, the transmission surface (1251) and the re-incident surface (1252) are positioned below the axis passing through the rear focus (F) of the first emission portion (1220) in the front-rear direction, thereby forming a high beam pattern (P2).

[0065] In other words, since the light (L12) that passes through the transmission surface (1251) and is incident on the re-incident surface (1252) proceeds to the first emission unit (1220) through the lower space relative to the rear focus (F) of the first emission unit (1220), it is refracted and emitted in an upward direction when emitted through the first emission unit (1220), so a high beam pattern (P2) can be formed in which at least a portion is located above the cut-off line (CL), as shown in FIG. 7 above.

[0066] In an embodiment of the present invention, the transmission surface (1251) is formed to have a curved shape that is convex toward the front, and the re-incident surface (1252) is formed to have a curved shape that is convex toward the rear, so that light traveling through the transmission surface (1251) and the re-incident surface (1252) can be concentrated to travel to the first emission unit (1220) with as little loss as possible.

[0067] At this time, the first emission unit (1220) may include an emission area (1221) for forming a third beam pattern.

[0068] In an embodiment of the present invention, the emission area (1221) is described as an example in which some of the light (L13) incident on the first incident part (1210) as shown in FIG. 9 is refracted and emitted in a direction facing upward, thereby forming a signal beam pattern (P3) that enables easy identification of road signs, etc. located above the driver's line of sight when forming a low beam pattern (P1) as shown in FIG. 10. However, this is merely an example to aid in understanding the present invention and is not limited thereto, and the light distribution characteristics of the third beam pattern can be varied depending on the formation angle or curvature of the emission area (1221).

[0069] Meanwhile, the transmission part (1230) may have a concave shape formed on its upper surface (1231), and the concave part (1231) may serve to block some of the light (L14) incident on the first incident part (1210) as shown in FIG. 11 from passing through the upper surface of the transmission part (1230).

[0070] That is, generally, when viewing the vehicle lamp (1) of the present invention from the outside, the external viewpoint is located above the vehicle lamp (1) of the present invention, and because this may cause glare from the light (L14) passing through the upper surface of the transmission part (1230), in the embodiment of the present invention, the light (L14) passing through the upper surface of the transmission part (1230) is blocked by the concave part (1231).

[0071] At this time, the dotted arrow in FIG. 11 can be understood as the path of light that travels through the upper surface of the transmission part (1230) when the concave part (1231) is not formed.

[0072] The optical unit (20) can transmit light emitted from at least one lamp module (1000) to form a beam pattern suitable for use in the vehicle lamp (1) of the present invention.

[0073] The optical unit (20) may include at least one optical lens (21) corresponding to at least one lamp module (1000). Since the embodiment of the present invention describes an example in which the light-emitting unit (10) includes a single lamp module (1000), the optical unit (20) will also be described as an example in which it includes a single optical lens (21) (hereinafter referred to as the "first optical lens").

[0074] The first optical lens (21) may include an incident surface (21a) and an exit surface (21b), and in an embodiment of the present invention, the incident surface (21a) may be formed to have a curved shape that is convex backward toward the first exit portion (1220) of the first lamp module (1000), and the exit surface (21b) may be formed to have a curved shape that is convex forward.

[0075] In an embodiment of the present invention, the first emission portion (1220) of the first lamp module (1000) is formed to have a greater curvature than the incident surface (21a) of the first optical lens (21), and this is intended to ensure that light emitted from the first lamp module (1000) is incident on the first optical lens (21) with as little loss as possible.

[0076] As described above, since the components for forming a first beam pattern and a second beam pattern, namely the first lens part (1200) and the first optical lens (21), can be shared in the vehicle lamp (1) of the present invention, the number of parts required to form different beam patterns is reduced, and as a result, the installation space can be reduced and the cost can be reduced.

[0077] In the above-described embodiment, the case in which the light-emitting unit (10) and the optical unit (20) each include a single lamp module (1000) and a single optical lens (21) is described as an example, but is not limited thereto. Depending on the light distribution characteristics of the beam pattern formed by the vehicle lamp (1) of the present invention, the light-emitting unit (10) and the optical unit (20) may each include two or more lamp modules and two or more optical lenses.

[0078] FIGS. 12 to 14 are perspective views showing a vehicle lamp according to another embodiment of the present invention, FIG. 15 is a plan view showing a vehicle lamp according to another embodiment of the present invention, and FIG. 16 is a cross-sectional view along line BB' of FIG. 15.

[0079] Referring to FIGS. 12 to 16, a vehicle lamp (1) according to another embodiment of the present invention may include a light-emitting unit (10) and an optical unit (20) similar to the above-described embodiment.

[0080] In another embodiment of the present invention, the light-emitting unit (10) may include a first lamp module (1000) and a second lamp module (2000) located on at least one of the two sides of the first lamp module (1000), and the optical unit (20) may include a first optical lens (21) and a second optical lens (22) located on at least one of the two sides of the first optical lens (21). The second lamp module (2000) is a general term for a lamp module with different light distribution characteristics from the first lamp module (1000), and the second optical lens (22) is a general term for an optical lens with different optical characteristics, such as the direction or angle of light refraction from the first optical lens (21). This case will be described as an example.

[0081] At this time, in another embodiment of the present invention, the first lamp module (1000) and the first optical lens (21) may be understood as the first lamp module (1000) and the first optical lens (21) of the aforementioned embodiment, and a detailed description thereof is omitted.

[0082] Additionally, in another embodiment of the present invention, the second lamp module (2000) is positioned on each side of the first lamp module (1000) and the second optical lens (22) is positioned on each side of the first optical lens (21), but is not limited thereto. The second lamp module (2000) may be positioned on at least one of the sides of the first lamp module (1000), and the second optical lens (22) may be positioned on at least one of the sides of the first optical lens (21).

[0083] When a second lamp module (2000) is located on each side of a first lamp module (1000), the second lamp modules (2000) located on each side of the first lamp module (1000) may have the same light distribution characteristics or different light distribution characteristics.

[0084] In addition, when a second optical lens (22) is positioned on each side of the first optical lens (21), the second optical lenses (22) positioned on each side of the first optical lens (21) may have the same optical characteristics or different optical characteristics.

[0085] In another embodiment of the present invention, the light-emitting unit (10) includes a first lamp module (1000) and a second lamp module (2000) so that pattern regions formed by each of the first lamp module (1000) and the second lamp module (2000) are combined or superimposed to form a first beam pattern and a second beam pattern.

[0086] For example, when the low beam pattern (P1) of FIG. 6 described above is formed by the vehicle lamp (1) of the present invention, the second lamp module (2000) can form a high-illumination area (P11) of the low beam pattern (P1), and the first lamp module (1000) can form a spread area (P12) of the low beam pattern (P1), and the high-illumination area (P11) and the spread area (P12) can be combined to form the low beam pattern (P1).

[0087] In addition, even when the high beam pattern (P2) of FIG. 7 described above is formed by the vehicle lamp (1) of the present invention, pattern regions of different light distribution characteristics formed by the first lamp module (1000) and the second lamp module (2000), respectively, similar to the low beam pattern (P1) described above, can be combined to form.

[0088] In another embodiment of the present invention, a case is described as an example in which pattern regions of different light distribution characteristics formed by each of the first lamp module (1000) and the second lamp module (2000) are combined to form a first beam pattern and a second beam pattern, but the invention is not limited thereto, and at least one of the first beam pattern and the second beam pattern may be formed by overlapping pattern regions of the same light distribution characteristics formed by each of the first lamp module (1000) and the second lamp module (2000).

[0089] The second lamp module (2000) may include a second light source part (2100) and a second lens part (2200).

[0090] The second light source unit (2100) may include at least one upper light source (2110) that emits light for forming a first beam pattern and at least one lower light source (2120) that emits light for forming a second beam pattern, similar to the first light source unit (1100) described above, and the number and arrangement direction of the upper light source (2110) and the lower light source (2120) may be varied according to the light distribution characteristics of the beam pattern formed by the vehicle lamp (1) of the present invention.

[0091] The second lens unit (2200) may include a second incident unit (2210) and a second exit unit (2220).

[0092] In another embodiment of the present invention, the second lens part (2200) may be formed integrally with the first lens part (1200), and as a result, the number of parts is reduced compared to the case where the first lens part (1200) and the second lens part (2200) are assembled individually, thereby reducing the assembly process and reducing costs.

[0093] The second incident section (2210) may include at least one upper incident module (2211) into which light emitted from at least one upper light source (2110) is incident, and at least one lower incident module (2212) into which light emitted from at least one lower light source (2120) is incident.

[0094] At least one upper incident module (2211) may include a center surface (2211a), a protruding surface (2211b) protruding backward from the edge of the center surface (2211a) toward at least one upper light source (2110), and a reflective surface (2211c) that reflects light incident on the protruding surface (2211b) to proceed forward.

[0095] Additionally, at least one lower incident module (2212) may also include a center surface (2212a), a protruding surface (2212b) protruding backward from the edge of the center surface (2212a) toward at least one lower light source (2120), and a reflective surface (2212c) that reflects light incident on the protruding surface (2212b) to propagate forward, similar to at least one upper incident module (2211).

[0096] It can be understood that at least one upper incident module (2211) and at least one lower incident module (2212) of the aforementioned second incident section (2210) are used as TIR (Total Internal Reflection) lens types to achieve a relatively high concentration of light, similar to the first incident section (1210) of the aforementioned embodiment.

[0097] The second output section (2220) may include an upper output section (2221) and a lower output section (2222).

[0098] The upper exit portion (2221) may be formed to have a curved shape that is convex toward the front, and the lower exit portion (2222) may be positioned in front of the upper exit portion (2221), and the upper portion of the lower exit portion (2222) may have an edge portion (2222a) extending in the left and right directions so as to have a position approximately similar in the front-rear and up-down directions to the front end (1241) of the first shield portion (1240) described above, so that the pattern area formed by the second lamp module (2000) may have a cut-off line (CL) formed at approximately the same position as the first lamp module (1000).

[0099] In another embodiment of the present invention, the upper emission part (2221) is located at the rear relative to the first emission part (1220) of the first lamp module (1000), and the path of light is adjusted so that when light incident on at least one upper incident module (2211) is emitted through the upper emission part (2221), it is concentrated at the edge part (2222a) of the lower emission part (2222) or near thereto, so that the light can have a relatively higher concentration degree compared to the case where the light is concentrated by at least one upper incident module (2211), thereby forming a high-illumination region (P11) in which the second lamp module (2000) has a higher light intensity than the first lamp module (1000).

[0100] At this time, the front section (1241) of the shield section (1240) is formed to have a curved shape so that it is positioned further forward from the center towards both sides, whereas the edge section (2222a) of the lower exit section (2222) is formed to have a straight shape so that the center and both sides have approximately the same position in the front-rear direction. This is because the light distribution characteristics of the pattern area formed by the first lamp module (1000) and the pattern area formed by the second lamp module (2000) are different from each other. Depending on the light distribution characteristics required by the first lamp module (1000) and the second lamp module (2000), the front section (1241) of the shield section (1240) and the edge section (2222a) of the lower exit section (2222) may have the same or different shapes.

[0101] At this time, since the lower emission section (2222) is formed at the front end of the light guide section (2223) which is formed to extend forward from the second incidence section (2210), light incident on at least one lower incidence module (2212) can be guided through the light guide section (2223) so as to be emitted through the lower emission section (2222).

[0102] Additionally, the lower surface of the light guide section (2223) is formed to slope upward as it moves forward, so that the length in the vertical direction gradually decreases as it moves forward. This allows the pattern area formed by the light emitted through the lower emission section (2222) to have an appropriate size so that it has sufficient light intensity, while also allowing the light incident through at least one lower incident module (2212) to undergo total reflection and proceed to the lower emission section (2222), thereby reducing light loss.

[0103] Meanwhile, in another embodiment of the present invention, the second optical lens (22) may include an incident surface (22a) and an exit surface (22b), similar to the first optical lens (21) described above.

[0104] In another embodiment of the present invention, a step difference may be formed in the front-rear direction between the incident surfaces (21a, 22a) of the first optical lens (21) and the second optical lens (22), respectively. This is intended to ensure that even if the positions of the first lamp module (1000) and the second lamp module (2000) are different, the pattern area formed by each of the first lamp module (1000) and the second lamp module (2000) is in the correct position, that is, has approximately the same cut-off line (CL), while the exit surfaces (21b, 22b) of the first optical lens (21) and the second optical lens (22) respectively form a single surface.

[0105] In other words, when the exit surfaces (21b, 22b) of the first optical lens (21) and the second optical lens (22) are formed to have a step difference from each other, the sense of unity between the first optical lens (21) and the second optical lens (22) is reduced, whereas in another embodiment of the present invention, the exit surfaces (21b, 22b) of the first optical lens (21) and the second optical lens (22) form a single surface, so the sense of unity is improved and the aesthetic sense can be improved.

[0106] In another embodiment of the present invention, an example is described in which a step of approximately planar shape is formed in the front-rear direction between the incident surfaces (21a, 22a) of the first optical lens (21) and the second optical lens (22), respectively. This can be understood as being intended to prevent light from being irradiated in an unnecessary direction by reflecting light that travels toward the exit surface of an adjacent other exit lens among the light incident on the incident surfaces (21a, 22b) of the first optical lens (21) and the second optical lens (22).

[0107] FIG. 17 is a schematic diagram showing the light path of a vehicle lamp according to another embodiment of the present invention, and FIG. 17 is an example of a case where the light path of a second lamp module (2000) is shown.

[0108] Referring to FIG. 17, the second lamp module (2000) allows light (L21) incident on at least one upper incident module (2211) to be emitted through the upper exit section (2221), concentrated at the edge section (2222a) of the lower exit section (2222) or a focus (F') located nearby therein, and proceed to the second optical lens (22), and light (L22) incident on at least one lower incident module (2212) can be guided by the light guide section (2223) so as to be emitted through the lower exit section (2222).

[0109] At this time, since light emitted from at least one upper light source (2110) can be concentrated by at least one upper incident module (2211) and an upper exit unit (2221), the second lamp module (2000) prefers a high illuminance region (P11) having a relatively high light intensity among the low beam pattern (P1).

[0110] Meanwhile, in another embodiment of the present invention, the case in which the first lamp module (1000) forming the spread area (P12) is located in the center and the second lamp module (2000) forming the high-illumination area (P11) is located on both sides of the first lamp module (1000) is described as an example, but is not limited thereto, and the second lamp module (2000) forming the high-illumination area (P11) may be located in the center and the first lamp module (1000) forming the spread area (P12) may be located on both sides of the second lamp module (2000).

[0111] As described above, the vehicle lamp (1) of the present invention can form pattern regions having different light distribution characteristics in a single lamp module, so the configuration can be simplified and the cost reduced.

[0112] In other words, the vehicle lamp (1) of the present invention can have the first lens part (1200) and the second lens part (2200) each used for forming the first beam pattern and the second beam pattern, and the first optical lens (21) and the second optical lens (22) each used for forming the first beam pattern and the second beam pattern, so the number of parts required to form different beam patterns is reduced, and as a result, the installation space is reduced, costs are lowered, and the assembly process can be simplified.

[0113] A person skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0114] 10: Light-emitting unit 1000: 1st lamp module 1100: First light source unit 1110: Upper light source 1120: Lower light source 1200: 1st lens section 1210: 1st Entry Department 1211: Upper incident module 1212: Lower incidence module 1220: 1st Expeditionary Unit 1221: Shooting Area 1230: Delivery unit 1231: Concave part 1240: Shield Unit 1251: Translucent surface 1252: Re-entry 2000: 2nd lamp module 2100: Second light source unit 2110: Upper light source 2120: Lower light source 2200: Second lens section 2210: 2nd Admission Division 2211: Upper incident module 2212: Lower incidence module 2220: 2nd Shootout Division 2221: Upper exit section 2222: Lower exit section 2223: Optical guide section 20: Optical unit 21: First optical lens 22: Second optical lens 21a, 22a: Incident surface 21b, 22b: Exit surface

Claims

Claim 1 A vehicle lamp comprising a light-emitting unit including at least one lamp module to form one or more beam patterns, wherein the light-emitting unit comprises a first lamp module, and the first lamp module comprises a first light source part; and a first lens part to form at least one of a first beam pattern and a second beam pattern by light emitted from the first light source part, wherein the first lens part comprises a first incident part into which light emitted from the first light source part is incident; and a first emission part to emit light transmitted by a transmission part among the light incident on the first incident part. Claim 2 A vehicle lamp according to claim 1, wherein the first light source unit comprises at least one upper light source emitting light for forming the first beam pattern; and at least one lower light source emitting light for forming the second beam pattern, and the first incident unit comprises at least one upper incident module into which light emitted from the at least one upper light source is incident; and at least one lower incident module into which light emitted from the at least one lower light source is incident. Claim 3 A vehicle lamp according to claim 2, wherein light incident on at least one upper incident module is guided to proceed to the first exiting module through the transmission section, and light incident on at least one lower incident module is guided to proceed to the first exiting module through a transmission surface formed on the lower surface of the transmission section and a re-incident surface formed in front of the transmission surface and spaced apart from the transmission surface. Claim 4 A vehicle lamp according to claim 3, wherein the transmission part has a shield part formed on the lower surface such that the front end is located at the rear focus of the first emission part, the transmission surface is formed to be connected to the rear end of the shield part, and the re-incident surface is formed to be connected to the front end of the shield part. Claim 5 A vehicle lamp according to claim 3, wherein the transmission surface is formed to have a curved shape that is convex toward the front, and the re-incident surface is formed to have a curved shape that is convex toward the rear. Claim 6 A vehicle lamp according to claim 1, wherein the transmission part has a concave portion formed on its upper surface, and the concave portion blocks light that passes through the upper surface of the transmission part. Claim 7 A vehicle lamp according to claim 1, wherein the first emission part comprises an emission region in which light for forming a third beam pattern is emitted among the light incident on the first incidence part. Claim 8 A vehicle lamp according to claim 1, wherein the light-emitting unit further comprises a second lamp module located on at least one of the two sides of the first lamp module. Claim 9 In claim 8, the first lamp module and the second lamp module form pattern regions having different light distribution characteristics, and at least one of the first beam pattern and the second beam pattern is formed by synthesizing the pattern regions formed by each of the first lamp module and the second lamp module, for a vehicle lamp. Claim 10 In claim 8, the second lamp module comprises: a second light source part; and a second lens part that forms at least one of the first beam pattern and the second beam pattern by light emitted from the second light source part, wherein the second lens part comprises: a second incident part into which light emitted from the second light source part is incident; and a second exit part into which at least a portion of the light incident on the second incident part is emitted. Claim 11 In claim 10, the second light source unit comprises at least one upper light source emitting light for forming the first beam pattern; and at least one lower light source emitting light for forming the second beam pattern, and the second incident unit comprises at least one upper incident module into which light emitted from the at least one upper light source is incident; and at least one lower incident module into which light emitted from the at least one lower light source is incident. Claim 12 In claim 10, the second emission unit comprises an upper emission unit and a lower emission unit, wherein the lower emission unit is a vehicle lamp located in front of the upper emission unit. Claim 13 In claim 12, the upper exit portion is a vehicle lamp located at the rear relative to the first exit portion. Claim 14 A vehicle lamp according to claim 12, wherein light emitted through the upper emission part is concentrated at an edge formed at the top of the lower emission part to form the first beam pattern, and light emitted through the lower emission part forms the second beam pattern. Claim 15 In claim 14, the edge portion is a vehicle lamp having a position corresponding to the rear focus of the first emission portion in the front-rear direction and the up-down direction. Claim 16 In claim 12, the lower emission portion is formed at the front end of the light guide portion extending forward from the second incidence portion, and the light guide portion is formed with a lower surface inclined upward forward so that its vertical length becomes shorter as it moves forward, for a vehicle lamp. Claim 17 In claim 12, the upper projection portion is formed to have a forward convex curved shape. A vehicle lamp. Claim 18 A vehicle lamp according to claim 1, further comprising an optical unit located in front of the light-emitting unit, wherein the optical unit comprises at least one optical lens corresponding to at least one lamp module. Claim 19 A vehicle lamp according to claim 18, wherein the at least one lamp module comprises a plurality of lamp modules, the at least one optical lens comprises a plurality of optical lenses corresponding to each of the plurality of lamp modules, and a step is formed in the front-rear direction between the incident surfaces of adjacent optical lenses among the plurality of optical lenses. Claim 20 In claim 19, the emission surface of each of the plurality of optical lenses forms a single surface for a vehicle lamp.

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