Vehicle lamp

Abstract

The present invention relates to a vehicle lamp, and more particularly, to a vehicle lamp capable of forming a plurality of light beam patterns while reducing installation space. A vehicle lamp according to an embodiment of the present invention may be a vehicle lamp in which a light beam pattern is formed by at least one lamp module, the at least one lamp module comprising: a light source that emits light in a vertical direction; a light guide unit that guides the light emitted from the light source so that the light travels forward; and an optical section positioned in front of the light guide section so as to transmit light emitted from the light guide section to form the light beam pattern, the light guide section including: an incident section arranged in a vertical direction with the light source so as to cause light emitted from the light source to be incident; the emitting part is positioned in front of the incident part; and a transmission unit that transmits the light incident in the vertical direction through the incidence unit so as to travel toward the emission unit.

Description

Technical Field

[0001] This invention relates to a vehicle lighting fixture, and more specifically, to a vehicle lighting fixture capable of forming multiple beam patterns while reducing installation space. Background Technology

[0002] Typically, vehicles are equipped with various types of lights, which have the functions of illumination to easily identify objects around the vehicle when driving at night, and signaling to inform surrounding vehicles or pedestrians of the vehicle's driving status.

[0003] For example, headlights and fog lights are mainly intended for illumination, while turn signals, taillights, and brake lights are mainly intended for signaling. The standards and specifications for the installation of each light fixture have been stipulated by regulations in order to fully realize their respective functions.

[0004] In such vehicle lighting fixtures, optical elements such as lenses are arranged along the direction of light emitted from the light source. Since the path or brightness of the light emitted from the light source is controlled and illuminated by the optical elements, there is a problem that it is difficult to reduce the installation space in the direction of light emission.

[0005] Furthermore, in order for vehicle lights to form multiple beam patterns that are different from each other, the optical systems corresponding to each beam pattern need to be equipped separately, thus increasing the installation space.

[0006] Therefore, a solution is needed that can form multiple beam patterns while reducing the setup space required to form beam patterns.

[0007] Existing technical documents Patent documents Patent Publication No. 10-2021-0045730 (Published on April 27, 2021) Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a vehicle lamp that can adjust the path of light emitted from the light source, thereby reducing the installation space.

[0009] Furthermore, a vehicle lamp is provided that reduces costs by reducing the number of components by sharing a substrate on which multiple light sources are provided for forming different beam patterns.

[0010] The technical problems of this invention are not limited to those mentioned above, and those skilled in the art can clearly understand other technical problems not mentioned from the following description.

[0011] To solve the aforementioned technical problem, a vehicle lamp according to an embodiment of the present invention can be a vehicle lamp that forms a beam pattern by comprising at least one lamp module, wherein the at least one lamp module may include: a light source that emits light in a vertical direction; a light guide that guides the light emitted from the light source to travel forward; and an optical section located in front of the light guide that allows light emitted from the light guide to pass through and form the beam pattern. The light guide includes: an incident section arranged in a vertical direction with the light source to allow light emitted from the light source to be incident; an exiting section located in front of the incident section; and a transmission section that transmits the light incident in a vertical direction through the incident section to travel toward the exiting section.

[0012] The incident portion may include: a central surface centered on the optical axis of the light source; a protruding surface protruding from the edge of the central surface toward the light source; and a reflecting surface reflecting the light incident from the protruding surface so that it travels along the optical axis of the light source.

[0013] The transmission unit may include an optical path adjustment unit, which can adjust the path of light to make the light that enters from the incident part and travels in the vertical direction travel forward.

[0014] The optical path adjustment section can be configured such that its front end is separated from the incident section by a larger gap in the vertical direction than its rear end, so that light incident through the incident section can be reflected and traveled forward.

[0015] The transmission section may include a shielding section formed on at least a portion of the lower surface of the transmission section to block a portion of the light traveling toward the emission section, wherein the front end of the shielding section may be located at the rear focal point of the emission section.

[0016] The ejection portion may have a shape that protrudes forward.

[0017] The incident surface of the optical unit may have a rearward convex shape, and the exit surface of the optical unit may have a planar shape.

[0018] The at least one lighting module may include multiple lighting modules, wherein the transmission part may include: a light path adjustment part, which adjusts the light path to make the light incident through the incident part travel forward in the vertical direction, wherein, in at least one direction, at least one of the tilt angle and curvature of the light path adjustment part of one of the multiple lighting modules may be different from at least one of the tilt angle and curvature of the light path adjustment part of another of the multiple lighting modules.

[0019] The at least one lighting module includes a plurality of lighting modules, the optical parts of the plurality of lighting modules are integrally formed, and the emission surface of the optical part of each of the plurality of lighting modules for emitting light incident from the emission part can be formed to have a planar shape.

[0020] To address the aforementioned technical problem, another embodiment of the vehicle lighting fixture of the present invention may include: a first lighting module and a second lighting module, wherein the first lighting module may include: a first light source emitting light in a vertical direction; a light guide portion guiding the light emitted from the first light source forward; and a first optical portion allowing light emitted from the light guide portion to pass through, wherein the second lighting module may include: at least one second light source emitting light in a vertical direction; a reflector portion reflecting the light emitted from the at least one second light source to propagate it forward; and a second light source portion allowing light reflected by the reflector portion to pass through, wherein the first light source and the second light source may be disposed on a common substrate.

[0021] The optical axes of the first light source and the second light source can be parallel to each other.

[0022] The at least one second light source may be located in front of the first light source.

[0023] The reflective portion may be integrally formed on the upper or lower surface of the light guide portion, and may reflect light emitted from the at least one second light source to propagate it forward.

[0024] The reflective portion may include at least one small plane that reflects light emitted from the at least one second light source forward.

[0025] The at least one second light source includes a plurality of second light sources, and the at least one facet includes a plurality of facets that reflect light emitted from each of the plurality of second light sources forward. In at least one direction, at least one of the lengths and curvatures of one of the plurality of facets may be different from at least one of the lengths and curvatures of another of the plurality of facets.

[0026] The first optical part and the second optical part can be integrally formed together along the vertical direction.

[0027] The first emission surface of the first optical unit and the second emission surface of the second optical unit can be formed to have a planar shape to form a single emission surface.

[0028] The first incident surface of the first optical unit and the second incident surface of the second optical unit can be formed to have a rearward convex shape.

[0029] Other specific aspects of the invention are included in the detailed description and accompanying drawings.

[0030] The vehicle lamp of the present invention as described above has one or more of the following effects.

[0031] By adjusting the path of the light so that the light emitted from the light source travels forward in the vertical direction, it has the effect of reducing the setup space in the front-back direction.

[0032] Furthermore, since multiple light sources used to form multiple beam patterns that are different from each other are set on a common substrate, it also has the effect of reducing the number of components and improving heat dissipation performance.

[0033] The effects of this invention are not limited to those mentioned above. Those skilled in the art can clearly understand other technical effects not mentioned by referring to the claims. Attached Figure Description

[0034] Figure 1 and Figure 2 This is a perspective view showing a vehicle lamp according to an embodiment of the present invention.

[0035] Figure 3 This is a plan view showing a vehicle lamp according to an embodiment of the present invention.

[0036] Figure 4 It is along Figure 3 A cross-sectional view of line A-A'.

[0037] Figure 5 This is a schematic diagram showing a beam pattern formed by a vehicle lamp according to an embodiment of the present invention.

[0038] Figure 6 and Figure 7 This is a perspective view showing a vehicle lamp according to another embodiment of the present invention.

[0039] Figure 8 This is a plan view showing a vehicle lamp according to another embodiment of the present invention.

[0040] Figure 9 It is along Figure 8 A cross-sectional view of line B-B'.

[0041] Figure 10 This is a schematic diagram showing a beam pattern formed by a vehicle lamp according to another embodiment of the present invention.

[0042] Explanation of reference numerals in the attached figures 1000: Lighting module; 1100: Light source 1200: Light guiding section; 1210: Incident section 1220: Ejection section; 1230: Transmission section 1231: Optical path adjustment section; 1232: Shielding section 1300: Optical section; 1310: Incident surface 1320: Injection surface 2100: First lighting module 2110: First light source; 2120: Light guide unit 2121: Entrance section; 2122: Exit section 2123: Transmission Unit; 2123a: Optical Path Adjustment Unit 2123b: Shielding section; 2130: First optical section 2131: First incident surface; 2132: First exit surface 2200: Second lighting module; 2210: Second light source 2220: Reflector 2221: Small facet 2230: Second optical section; 2231: Second incident surface 2232: Second firing surface Detailed Implementation

[0043] The advantages and features of the invention, as well as the methods for achieving them, will become clear by referring to the embodiments described in detail below with reference to the accompanying drawings. However, the invention can be implemented in various different forms and is not limited to the embodiments disclosed below. These embodiments are provided only to complete the disclosure of the invention and to fully inform those skilled in the art of the scope of the invention, which is defined only by the scope of the claims. Throughout this specification, the same reference numerals refer to the same constituent elements.

[0044] Therefore, in several embodiments, in order to avoid the invention being misinterpreted, well-known process steps, well-known structures and well-known technologies are not specifically described.

[0045] The terminology used in this specification is for illustrative purposes and not intended to limit the invention. In this specification, unless otherwise stated, singular forms include plural forms as well. The terms "comprises" and / or "comprising" as used in this specification mean that the presence or addition of more than one other constituent element, step, operation, and / or element besides those mentioned is not excluded. Furthermore, "and / or" includes each and all combinations of more than one of the mentioned items.

[0046] Furthermore, the embodiments described in this specification will be explained with reference to cross-sectional views and / or schematic diagrams, which are idealized examples of the present invention. Therefore, the form of the example drawings may vary depending on manufacturing techniques and / or allowable tolerances. Thus, the embodiments of the present invention are not limited to the specific forms illustrated, and variations in form resulting from manufacturing processes are also included. Moreover, in the various figures illustrated in this invention, the constituent elements may be shown in slightly enlarged or reduced form for ease of explanation. Throughout this specification, the same reference numerals refer to the same constituent elements.

[0047] Hereinafter, the present invention will be described with reference to the accompanying drawings, which are used to describe vehicle lighting fixtures, based on embodiments of the present invention.

[0048] Figure 1 and Figure 2 This is a perspective view showing a vehicle lamp according to an embodiment of the present invention. Figure 3 This is a plan view illustrating a vehicle lamp according to an embodiment of the present invention. Figure 4 It is along Figure 3 A cross-sectional view of line A-A'.

[0049] Reference Figures 1 to 4 According to an embodiment of the present invention, a vehicle lamp 1 may include at least one lamp module 1000.

[0050] In an embodiment of the present invention, the vehicle lamp 1 is described as follows: when the vehicle is driving at night or in a dark place such as a tunnel, it is used as a headlight to illuminate the vehicle in the direction of travel to ensure the vehicle's forward visibility. However, it is not limited to this. The vehicle lamp 1 of the present invention can not only be used as a headlight, but also as various lamps installed on the vehicle such as taillights, brake lights, daytime running lights, turn signals, fog lights, reversing lights, and side marker lights. The vehicle lamp 1 of the present invention can also be used for one of the above-mentioned uses, or it can be used for two or more uses at the same time.

[0051] Furthermore, in the embodiments of the present invention, the following case is used as an example for explanation: the X-axis direction as the left and right direction refers to the vehicle width direction, the Y-axis direction as the driving direction refers to the front and back direction (forward or backward), and the Z-axis direction as the up and down direction refers to the vehicle height direction. However, it is not limited to this. The actual directions pointed to by the X-axis, Y-axis, and Z-axis can vary depending on the position and direction of the vehicle lamp 1 according to the present invention.

[0052] When the vehicle lamp 1 of the present invention is used as a headlight, at least one of a low beam pattern and a high beam pattern can be formed. The low beam pattern illuminates downwards with reference to the cutoff line to prevent glare to drivers of vehicles in front, such as vehicles traveling in front or oncoming vehicles, thereby ensuring a wide field of vision at close range in front of the vehicle. The high beam pattern ensures a long field of vision at long distances in front of the vehicle.

[0053] Hereinafter, in the embodiments of the present invention, as Figure 5 As shown, the explanation will take the case where the vehicle lamp 1 of the present invention forms a low beam pattern LP that illuminates light downwards based on the cutoff line CL as an example. Figure 5 The low beam pattern LP is illustrated by taking the case where the beam pattern is formed by light illuminating the vehicle lamp 1 of the present invention onto a screen located at a predetermined distance in front of the vehicle as an example.

[0054] On the other hand, in the embodiments of the present invention, the case in which at least one lamp module 1000 includes a plurality of lamp modules 1000 arranged in the left-right direction is described as an example, but it is not limited thereto. The number and arrangement direction of the lamp modules can vary according to the light distribution characteristics of the beam pattern formed by the vehicle lamp 1 of the present invention (i.e., the position, size, shape, brightness, etc. of the area irradiated by light).

[0055] In the case where the vehicle lamp 1 of the present invention includes a plurality of lamp modules 1000, the beam pattern formed by the vehicle lamp 1 of the present invention can be formed by overlapping beam patterns with the same light distribution characteristics formed from each of the plurality of lamp modules 1000, or by combining beam patterns with different light distribution characteristics formed from different lamp modules 1000. The case where the light distribution characteristics are different can be understood as at least one of the position, size, shape, and brightness of the area illuminated by the light being different from each other.

[0056] Each of at least one lighting module 1000 may include a light source 1100, a light guide 1200, and an optical part 1300.

[0057] The light source 1100 can emit light with a light intensity or color suitable for the beam pattern formed by the vehicle lamp 1 of the present invention. In an embodiment of the present invention, the optical axis Ax of the light source 1100 can be parallel to the vertical direction and emit light along the vertical direction. This is to reduce the space occupied by the vehicle lamp 1 of the present invention in the front-rear direction, thereby reducing the installation space.

[0058] At this point, the optical axis Ax of the light source 1100 can be understood as the axis perpendicular to the normal direction passing through the center of the emitting surface or emitting area.

[0059] In an embodiment of the present invention, the case of using a semiconductor light-emitting element such as an LED (Light Emitting Diode) as the light source 1100 is described as an example, but it is not limited thereto. The light source 1100 can use not only LEDs, but also various other types of light sources such as LDs (Laser Diodes) or bulbs.

[0060] The light guiding section 1200 may include an incident section 1210, an emitting section 1220, and a transmission section 1230.

[0061] The incident portion 1210 can be arranged vertically with the light source 1100 so that light emitted from the light source 1100 in the vertical direction can be incident. In the embodiment of the present invention, since the light is emitted from the light source 1100 to the lower side, the case in which the incident portion 1210 is located to the lower side of the light source 1100 is described as an example, but it is not limited to this and the case can also be the opposite.

[0062] The incident portion 1210 may include: a central surface 1211 centered on the optical axis Ax of the light source 1100; a protruding surface 1212 formed to protrude from the edge of the central surface 1211 toward the light source 1100; and a reflecting surface 1213 that reflects the light incident from the protruding surface 1212 so that it travels along the optical axis Ax of the light source 1100.

[0063] In the embodiments of the present invention, since at least one lighting module 1000 includes two light sources 1100, the case in which the light guide 1200 includes two incident portions 1210 is described as an example, but it is not limited thereto, and the number of incident portions 1210 may vary depending on the number of light sources 1100.

[0064] The emission section 1220 can be located in front of the incident section 1210 so that the light incident on the incident section 1210 is emitted forward, and the light incident on the incident section 1210 along the vertical direction can be guided forward by the transmission section 1230.

[0065] Furthermore, the emission section 1220 can be formed with a forward-protruding shape to concentrate the emitted light.

[0066] As described above Figure 4As shown, the transmission unit 1230 may include: an optical path adjustment unit 1231, which adjusts the path of light to make the light L incident through the incident unit 1210 travel forward in the vertical direction; and a shielding unit 1232, which is formed on at least a portion of the lower surface of the transmission unit 1230 and whose front end is located at or near the rear focal point F of the emission unit 1220.

[0067] At this time, the rear focal point F of the emission section 1220 can have a shape of point, line, surface, space or combination thereof, depending on the actual area where the light is concentrated.

[0068] The optical path adjustment unit 1231 can be located on the path of the light incident from the incident unit 1210, thereby enabling the light incident from the incident unit 1210 to travel forward by adjusting the light path.

[0069] The optical path adjustment section 1231 can be configured such that its front end is separated from the incident section 1210 by a larger gap in the vertical direction than its rear end, so as to perform total internal reflection on the light incident through the incident section 1210 in the vertical direction and make it travel forward. Furthermore, the light distribution characteristics of the light reflected by the optical path adjustment section 1231 and emitted through the emission section 1220 can be varied according to the tilt angle or curvature of the optical path adjustment section 1231.

[0070] In other words, when at least one luminaire module 1000 includes multiple luminaire modules 1000, and at least one of the tilt angle and curvature of the light path adjustment section of the multiple luminaire modules 1000 is formed differently, the light distribution characteristics of the light irradiated from the multiple luminaire modules 1000 will be different from each other.

[0071] For example, if at least one of the tilt angles and curvatures of the optical path adjustment sections of the multiple luminaire modules 1000 are different from each other, one of the different luminaire modules forms a high-illuminance area with relatively high brightness in the low beam pattern LP, thereby improving the field of view distance. And, although another of the different luminaire modules has relatively low brightness compared to the high-illuminance area, it can form a diffusion area so that the high-illuminance area can expand in at least one of the left-right direction and the up-down direction, thereby ensuring a wide field of view.

[0072] As described above Figure 5 As shown, the shielding part 1232 can block light traveling towards the emission part 1220 through the lower space based on the rear focal point F of the emission part 1220, thereby forming the light and dark cutoff line CL of the near beam pattern LP.

[0073] In other words, since the light traveling towards the emission section 1220 through the lower space based on the rear focal point F of the emission section 1220 is refracted upwards and emitted to illuminate the upper side of the light-dark cutoff line CL, it may become the cause of glare. Therefore, the front end of the shielding section 1232 is located at or near the rear focal point F, thereby blocking the light that illuminates the upper side of the light-dark cutoff line CL.

[0074] At this time, at the front end of the shielding portion 1232, the edge portion 1232a corresponding to the shape of the light and dark cutoff line CL can be formed extending in the left and right direction. In the embodiment of the present invention, the following case will be used as an example: Since the light and dark cutoff line CL is formed with a step difference on both sides based on the center portion, the edge portion 1232a is also formed with a step difference on both sides based on the center portion. However, it is not limited to this. When the light and dark cutoff line CL is formed as a line without a step difference, the edge portion 1232a can also be formed without a step difference.

[0075] The optical section 1300 causes light emitted from the emission section 1220 and incident through the incident surface 1310 to be emitted through the emission surface 1320. In an embodiment of the present invention, the following example will be described: In order to concentrate the light incident on the optical section 1300, the incident surface 1310 is formed to have a shape that protrudes rearward toward the emission section 1220, and the emission surface 1320 is formed to have a planar shape. This is so that even when the vehicle lamp 1 of the present invention includes multiple lamp modules 1000, it is possible to achieve an integrated appearance such that the optical section 1300 of each of the multiple lamp modules 1000 has a single emission surface.

[0076] In other words, when the vehicle lamp 1 of the present invention includes a plurality of lamp modules 1000 arranged in the left-right direction, if the emission surface 1320 of the optical portion 1300 of each of the plurality of lamp modules 1000 has a convex or concave shape, even if the optical portions 1300 of each of the plurality of lamp modules 1000 are integrally formed, it is difficult for the optical portions 1300 of each of the plurality of lamp modules 1000 to have a unified appearance. Conversely, in the embodiment of the present invention, since the emission surface 1320 of the optical portion 1300 of each of the plurality of lamp modules 1000 has a planar shape, when the optical portions 1300 of each of the plurality of lamp modules 1000 are integrally formed, it is possible to form the appearance described above. Figure 1 The single injection surface shown allows for a unified appearance.

[0077] In the above embodiments, the case in which a single beam pattern is formed by the vehicle lamp 1 of the present invention is described as an example, but it is not limited to this, and multiple beam patterns that are different from each other can also be formed.

[0078] Figure 6 and Figure 7 This is a perspective view showing a vehicle lamp according to another embodiment of the present invention. Figure 8 This is a plan view of a vehicle lamp according to another embodiment of the present invention. Figure 9 It is along Figure 8 A cross-sectional view of line B-B'.

[0079] Reference Figures 6 to 9 In another embodiment of the present invention, the vehicle lamp 1 may include a first lamp module 2100 forming a first beam pattern and a second lamp module 2200 forming a second beam pattern.

[0080] In other embodiments of the invention, the first beam pattern is as described above. Figure 5 The near beam pattern LP, and the second beam pattern is as follows Figure 10 Taking the case where at least a portion of the high beam pattern HP is illuminating the upper side of the cutoff line CL as an example, the low beam pattern LP is formed at the same time as the high beam pattern HP, thereby ensuring a long field of vision and a wide field of vision in front of the vehicle.

[0081] At this time, the high beam pattern HP may include multiple pattern areas PA arranged in the left-right direction, and depending on the position of the vehicle in front, at least one of the multiple pattern areas PA may not be formed, or the brightness of at least one of the multiple pattern areas PA may be reduced, thereby preventing glare to the driver of the vehicle in front.

[0082] The case where the first beam pattern is the low beam pattern LP and the second beam pattern is the high beam pattern HP is merely an example to help understand the invention, but is not limited thereto. The first beam pattern and the second beam pattern can be understood as beam patterns with different light distribution characteristics from each other.

[0083] The first lighting module 2100 may include a first light source 2110, a light guide 2120, and a first optical part 2130.

[0084] In another embodiment of the present invention, the first light source 2110, the light guide 2120, and the first optical part 2130 of the first lighting module 2100 can perform the same function as the light source 1100, the light guide 1200, and the optical part 1300 of the lighting module 1000 described above, so a detailed description of this function is omitted.

[0085] Furthermore, in another embodiment of the present invention, the first lamp module 2100 may be configured as a plurality of first lamp modules 2100 similar to the lamp module 1000 described above, thereby achieving the same or different light distribution characteristics.

[0086] The optical axis Ax1 of the first light source 2110 can be parallel to the vertical direction and emit light along the vertical direction.

[0087] The light guiding section 2120 may include: an incident section 2121, which is arranged vertically with the first light source 2110 so that light emitted from the first light source 2110 in the vertical direction is incident; an emission section 2122, which is located in front of the incident section 2121 so that the light incident on the incident section 2121 is emitted forward; and a transmission section 2123, which guides the light incident on the incident section 2121 to the emission section 2122.

[0088] At this time, the incident portion 2121 may include: a central surface 2121a, with the optical axis Ax1 of the first light source 2110 as the center; a protruding surface 2121b, formed to protrude from the edge of the central surface 2121a toward the first light source 2110; and a reflecting surface 2121c, which reflects the light incident from the protruding surface 2121b so that it travels along the optical axis Ax1 of the first light source 2110.

[0089] The emission portion 2122 can be formed with a forward-protruding shape to gather the light incident on the incident portion 2121 and emitted forward.

[0090] The transmission section 2123 may include: an optical path adjustment section 2123a, which adjusts the path of light so that light incident through the incident section 2121 in the vertical direction is totally internally reflected and travels forward; and a shielding section 2123b, which is formed on at least a portion of the lower surface of the transmission section 2123 and whose front end is located at or near the rear focal point F of the emission section 2122 to form the light and dark cutoff line CL of the near beam pattern LP.

[0091] As described above Figure 9 As shown, the optical path adjustment section 2123a can be configured such that the front end is separated from the incident section 2121 by a larger gap in the vertical direction than the rear end, so as to perform total internal reflection on the light L1 emitted from the first light source 2110 and incident through the incident section 2121, causing it to travel forward. The shielding section 2123b can block the light traveling towards the emission section 2122 through the lower space based on the rear focal point F of the emission section 2122, thereby blocking the light from illuminating the upper side of the light cutoff line CL of the near beam pattern LP.

[0092] The first optical section 2130 causes light emitted from the emission section 2122 and incident through the first incident surface 2131 to be emitted through the first emission surface 2132. The first incident surface 2131 is formed to have a rearward convex shape in order to concentrate the incident light, and the first emission surface 2132 can be formed to have a planar shape.

[0093] The second lighting module 2200 may include at least one second light source 2210, a reflector 2220, and a second optical component 2230.

[0094] The optical axis Ax2 of at least one second light source 2210 can be parallel to the vertical direction and emit light along the vertical direction. In another embodiment of the present invention, the case in which the optical axis Ax1 of the first light source 2110 and the optical axis Ax2 of at least one second light source 2210 are set to be parallel to each other and emit light in the downward direction is described as an example, but it is not limited thereto. The first light source 2110 and at least one second light source 2210 can also emit light in the upward direction.

[0095] At this time, the first light source 2110 and at least one second light source 2210 can be arranged to have different positions from each other along the front-back direction. As the first light source 2110 and at least one second light source 2210 emit light in the same direction along the up-down direction, the first light source 2110 and at least one second light source 2210 can be set together on a common substrate 2300. Accordingly, compared with the case of setting separate substrates for the first light source 2110 and at least one second light source 2210, not only can the number of components be reduced and the cost reduced, but a relatively easy heat dissipation structure can also be designed, thereby improving heat dissipation performance.

[0096] In other words, even if the light emitted from the first light source 2110 and at least one second light source 2210 forms different beam patterns, as light is emitted from the first light source 2110 and at least one second light source 2210 in the vertical direction, the space occupied by the vehicle lamp 1 of the present invention in the front-rear direction will be reduced, thereby reducing the installation space, and the number of components can be reduced by using a common substrate 2300, thereby reducing the cost.

[0097] At this time, the fact that the first light source 2110 and at least one second light source 2210 are disposed together on a common substrate 2300 means that they can share the heat dissipation structure for the first light source 2110 and at least one second light source 2210. Therefore, it is possible to achieve a simpler heat dissipation structure design, thereby improving heat dissipation performance.

[0098] In another embodiment of the invention, at least one second light source 2210 is positioned in front of the first light source 2110 because the travel distances of the light required to give the near beam pattern LP and the far beam pattern HP suitable light distribution characteristics are different from each other.

[0099] For example, since the high beam pattern HP needs to have a higher focusing degree than the low beam pattern LP, at least one second light source 2210 can be located in front of the first light source 2110. In this case, since the distance from the light emitted from at least one second light source 2210 to the second optical section 2230 is shorter than the distance from the light emitted from the first light source 2110 to the first optical section 2130, the light emitted from at least one second light source 2210 diffuses relatively less, thus having a relatively high focusing degree.

[0100] On the other hand, in another embodiment of the present invention, the second lighting module 2200 is described as an example of at least one second light source 2210 including a plurality of second light sources 2210 arranged in the left-right direction, as described above. Figure 10 As shown, this is a case where the high beam pattern HP is composed of multiple pattern areas PA arranged along the left and right direction. The purpose is to prevent glare to the driver of the vehicle in front by turning off or reducing the brightness of the second light source 2210 corresponding to the position of the vehicle in front, so as not to form the pattern area corresponding to the position of the vehicle in front in the multiple pattern areas PA, or to reduce the brightness of the pattern area corresponding to the position of the vehicle in front in the multiple pattern areas PA to form a shadow area.

[0101] The reflector 2220 may include at least one facet 2221 that reflects light emitted from at least one second light source 2210 in the vertical direction so that it travels forward.

[0102] In another embodiment of the present invention, the case in which the reflector 2220 is integrally formed with the first lamp module 2100 along the vertical direction and its position is fixed is described as an example, but it is not limited thereto. The position of the reflector 2220 can also be fixed by a separate fixing structure.

[0103] For example, the reflector 2220 may be integrally formed on the upper or lower surface of the transmission portion 2123 of the light guide portion 2120 of the first lamp module 2100 to fix its position. At least a portion of the light guide portion 2120 on the opposite side of the reflector 2220 may have at least one small plane 2221 formed. The surfaces on the upper and lower surfaces of the light guide portion 2120 may be different depending on the direction of light emitted from at least one second light source 2210.

[0104] At this time, the case where the reflective part 2220 and the light guide part 2120 are formed as one unit can include not only the case where the reflective part 2220 and the light guide part 2120 are manufactured as one unit, but also the case where the reflective part 2220 and the light guide part 2120 are manufactured separately and combined so that there is no relative movement.

[0105] On the other hand, in another embodiment of the present invention, taking the case where the second lighting module 2200 includes a plurality of second light sources 2210 as an example, at least one small plane 2221 may also include a plurality of small planes 2221 in such a manner that they have a number corresponding to the plurality of second light sources 2210, and the above description can be determined according to the shape of each of the plurality of small planes 2221. Figure 10 The light distribution characteristics of each of the multiple patterned regions in PA.

[0106] In other words, when the second luminaire module 2200 includes a plurality of facets 2221, the light distribution characteristics of each of the plurality of facets 2221 can be determined based on the length and curvature of each of the plurality of facets 2221 in at least one of the following directions: front-back direction, left-right direction, up-down direction, and directions formed by combining these facets.

[0107] In another embodiment of the invention, as described above Figure 10 As shown, each of the multiple pattern regions PA can have the following shape: as it moves from the center of the high beam pattern HP to the side, the length in the vertical direction becomes shorter and the length in the horizontal direction becomes longer. The purpose is that the pattern region located at the center of the high beam pattern HP can allow the light to be illuminated to a relatively farther distance, thereby ensuring a long field of view. Furthermore, the pattern regions located on both sides of the center of the high beam pattern HP can relatively widen the range of light illumination in the horizontal direction, thereby ensuring a wide field of view.

[0108] The second optical unit 2230 may include a second incident surface 2231 and a second exit surface 2232, and may be arranged and integrally formed with the first optical unit 2130 along the vertical direction.

[0109] At this time, similar to the first optical unit 2130, the second optical unit 2230 is formed such that the second incident surface 2231 has a rearwardly convex shape, and the second exit surface 2232 has a planar shape, so that when the first optical unit 2130 and the second optical unit 2230 are integrally formed, as described above... Figure 6 As shown, a single injection surface can be formed to achieve a unified appearance.

[0110] In other words, in other embodiments of the present invention, the vehicle lamp 1 can form beam patterns that are different from each other, such as low beam pattern LP and high beam pattern HP. When viewed from the outside, since the first optical part 2130 and the second optical part 2230 are integrally formed, the same appearance as forming a single emission surface can be achieved, thus improving the sense of unity.

[0111] Those skilled in the art will understand that the invention can be implemented in other specific forms without altering the technical concept or essential features. Therefore, the embodiments described above are exemplary in all respects and should be understood as not limiting embodiments. The scope of the invention is not limited by the foregoing detailed description, but by the claims. All modifications or variations that can be derived from the meaning, scope, and equivalents of the claims should be interpreted as included within the scope of the invention.

Claims

1. A vehicle lamp, comprising at least one lamp module forming a beam pattern, wherein, The at least one lighting module includes: A light source that emits light in a vertical direction; A light guide unit that guides light emitted from the light source to travel forward; and An optical section is located in front of the light guide section to allow light emitted from the light guide section to pass through and form the beam pattern. The light guiding portion includes: An incident section is arranged vertically with the light source so that light emitted from the light source is incident upon it. The ejection section is located in front of the incident section; and The transmission section transmits light incident in the vertical direction through the incident section to the emission section.

2. The vehicle lighting fixture according to claim 1, wherein, The incident portion includes: The central plane is centered on the optical axis of the light source. A protruding surface protrudes from the edge of the central surface toward the light source; and A reflective surface that reflects light incident from the protruding surface so that it travels along the optical axis of the light source.

3. The vehicle lighting fixture according to claim 1, wherein, The transmission unit includes an optical path adjustment unit, which adjusts the path of light to make the light incident from the incident unit and traveling in the vertical direction travel forward.

4. The vehicle lighting fixture according to claim 3, wherein, The optical path adjustment section is configured such that its front end is separated from the incident section by a larger gap in the vertical direction than its rear end, so as to reflect the light incident through the incident section and cause it to travel forward.

5. The vehicle lighting fixture according to claim 1, wherein, The transmission unit includes: A shielding portion is formed on at least a portion of the lower surface of the transmission portion to block a portion of the light traveling toward the emission portion. The front end of the shielding part is located at the rear focal point of the ejection part.

6. The vehicle lighting fixture according to claim 1, wherein, The ejection portion has a shape that protrudes forward.

7. The vehicle lighting fixture according to claim 1, wherein, The incident surface of the optical unit has a rearward convex shape, and the exit surface of the optical unit has a planar shape.

8. The vehicle lighting fixture according to claim 1, wherein, The at least one lighting module includes multiple lighting modules. The transmission unit includes: The optical path adjustment unit adjusts the path of light to ensure that light incident through the incident part travels forward in the vertical direction. In at least one direction, at least one of the tilt angle and curvature of the optical path adjustment part of one of the plurality of lighting modules is different from at least one of the tilt angle and curvature of the optical path adjustment part of another of the plurality of lighting modules.

9. The vehicle lighting fixture according to claim 1, wherein, The at least one lighting module includes multiple lighting modules. The optical components of the plurality of lighting modules are integrally formed. The emitting surface of the optical part of each of the plurality of lighting modules, from which light incident from the emitting part is emitted, is formed to have a planar shape.

10. A vehicle lamp, wherein, include: First lighting module and second lighting module The first lighting module includes: The first light source emits light in a vertical direction; The light guiding section guides the light emitted from the first light source forward; and The first optical section allows light emitted from the light guide section to pass through. The second lighting module includes: At least one second light source emits light in the vertical direction; A reflective element that reflects light emitted from the at least one second light source so that it travels forward; and The second optical section allows light reflected by the reflective section to pass through. The first light source and the second light source are disposed on a common substrate.

11. The vehicle lamp according to claim 10, wherein, The optical axes of the first light source and the second light source are parallel to each other.

12. The vehicle lighting fixture according to claim 10, wherein, The at least one second light source is located in front of the first light source.

13. The vehicle lighting fixture according to claim 10, wherein, The reflective portion is integrally formed on the upper or lower surface of the light guide portion and reflects light emitted from the at least one second light source to propagate it forward.

14. The vehicle lighting fixture according to claim 10, wherein, The reflective portion includes at least one small plane that reflects light emitted from the at least one second light source forward.

15. The vehicle lighting fixture according to claim 14, wherein, The at least one second light source includes a plurality of second light sources. The at least one facet includes a plurality of facets that reflect light emitted from each of the plurality of second light sources forward. In at least one direction, at least one of the lengths and curvatures of one of the plurality of small planes is different from at least one of the lengths and curvatures of another of the plurality of small planes.

16. The vehicle lamp according to claim 10, wherein, The first optical part and the second optical part are integrally formed together along the vertical direction.

17. The vehicle lighting fixture according to claim 16, wherein, The first emission surface of the first optical part and the second emission surface of the second optical part are formed to have a planar shape to form a single emission surface.

18. The vehicle lighting fixture according to claim 16, wherein, The first incident surface of the first optical unit and the second incident surface of the second optical unit are formed to have a rearward convex shape.

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