Vehicle lamp
By combining multiple light source modules and lens systems, the lighting order and position rotation of the light sources are controlled, solving the problems of color difference and image diversity in vehicle lamps, and achieving dynamic image display and uniform brightness.
Patent Information
- Application Number
- CN202480010808.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-02-10
- Filing Date
- 2024-01-22
- Publication Date
- 2025-09-05
AI Technical Summary
Existing vehicle lamps are prone to chromatic aberration when forming images, and it is difficult to form images of various shapes using a single optical system.
It uses multiple light source modules, optical path adjustment parts and lens systems to control the lighting sequence and position rotation of the light sources, combined with the blocking design, to form an image with uniform brightness and color.
It realizes the dynamic display of images of various shapes, prevents the generation of color difference, and improves the information transmission capability of vehicle lamps.
Smart Images

Figure CN120604077A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a vehicle lamp, and more particularly to a vehicle lamp capable of forming a plurality of images while preventing the occurrence of color difference. Background Art
[0002] Typically, a vehicle is equipped with a variety of lamps that have the following functions: a lighting function to facilitate identification of objects around the vehicle when driving at night; and a signaling function to inform other vehicles or road users of the vehicle's driving status.
[0003] For example, headlights and fog lights are mainly intended to serve as lighting functions, while turn signals, taillights, brake lights, etc. are mainly intended to serve as signal functions. The setting standards and specifications of these lamps have been stipulated by laws and regulations in order to give full play to their respective functions.
[0004] Recently, since the information that can be provided by lighting and signal functions alone is limited, research is being actively conducted to form images such as text or graphics on the road surface around the vehicle in addition to lighting and signal functions to provide a wider range of information to the driver, drivers of surrounding vehicles, pedestrians, etc.
[0005] Furthermore, in automotive lamps, light generated by a light source passes through a lens and exits. The light entering the lens may experience differences in refractive index depending on the wavelength, causing chromatic aberration. This chromatic aberration gradually increases as it goes toward the outer side of the lens.
[0006] Therefore, there is a need for a solution to prevent light emitted from a vehicle lamp from having uneven color due to color difference. Summary of the Invention
[0007] Technical issues The technical problem to be solved by the present invention is to provide a vehicle lamp that can form images of various shapes through one optical system.
[0008] Furthermore, a vehicle lamp is provided that forms an image having uniform brightness and color by blocking light that is highly likely to cause chromatic aberration.
[0009] The technical problems of the present invention are not limited to the technical problems mentioned above, and those skilled in the art can clearly understand other technical problems not mentioned from the following description.
[0010] Technical Solution In order to achieve the above technical problem, according to an embodiment of the present invention, as a vehicle lamp that forms an image of a predetermined shape by light irradiated from at least one lamp module, the at least one lamp module may include: a light source portion, including multiple light sources; a first lens portion, including multiple light path adjustment portions for adjusting the path of light generated from each of the multiple light sources; and a second lens portion, transmitting light incident from the first lens portion so as to emit it, wherein the second lens portion includes: multiple transmission areas, transmitting light emitted from each of the multiple light path adjustment portions.
[0011] The optical path adjustment portions adjacent to each other among the plurality of optical path adjustment portions may be provided to be spaced apart at predetermined intervals.
[0012] The first lens portion can be combined with a retaining member having a plurality of through holes corresponding to each of the plurality of optical path adjustment portions, and the retaining member may include: a partition wall dividing the plurality of through holes; a first extension portion extending from the partition wall toward the light source portion; and a second extension portion extending from the partition wall toward the second lens portion.
[0013] The first lens portion may include a through hole through which the end portion of the first extension portion passes, so that the end portion of the first extension portion extends toward the light source portion.
[0014] The second lens portion may include: a light transmitting portion; a plurality of incident lenses formed on an incident surface of the light transmitting portion; a plurality of exit lenses formed on an exit surface of the light transmitting portion; and a plurality of blocking members formed with openings that allow a portion of light traveling to each of the plurality of exit lenses to pass therethrough and block another portion.
[0015] The plurality of blocking members may be formed on an incident surface of the light transmitting portion.
[0016] The focal points of the plurality of incident lenses may be located on the exit surface of the light transmission portion, and the focal points of the plurality of exit lenses may be located on the incident surface of the light transmission portion.
[0017] The plurality of incident lenses, the plurality of exit lenses, and the plurality of blocking members may be located within the plurality of transmission regions, and transmission regions adjacent to each other among the plurality of transmission regions may be formed to be spaced apart at predetermined intervals.
[0018] The plurality of blocking members may include a blocking member included in one of the plurality of light-transmitting areas and a blocking member included in another of the plurality of light-transmitting areas, and the blocking member in each of the different transmission areas included in the plurality of transmission areas has an opening portion having a shape different from that of the other.
[0019] The blocking members included in each of the plurality of transmission areas among the plurality of blocking members may form openings having different shapes from each other depending on positions formed with reference to the center of a corresponding optical path adjusting portion among the plurality of optical path adjusting portions.
[0020] In an opening portion of a blocking member included in each of the multiple blocking members in the multiple transmission areas, compared to a case where it is located at the center of a corresponding optical path adjustment portion among the multiple optical path adjustment portions, a portion of the opening portion corresponding to the radial direction can be removed when it is radially spaced apart from the center of the corresponding optical path adjustment portion.
[0021] Each of the plurality of optical path adjusting portions may have a size equal to or smaller than a corresponding transmission area among the plurality of transmission areas.
[0022] The vehicle lamp may further include a control unit configured to control operations of the plurality of light sources, wherein the control unit controls at least one of a lighting time, a lighting order, a lighting interval, and a lighting brightness of each of the plurality of light sources.
[0023] The vehicle lamp may further include a driving unit configured to adjust a position of the at least one lamp module, wherein the driving unit rotates the at least one lamp module in at least one direction to change a position where the image is formed.
[0024] Other specific matters of the present invention are included in the detailed description and drawings.
[0025] Technical Effects According to the vehicle lamp of the present invention as described above, one or more of the following effects are achieved.
[0026] By controlling the lighting sequence, lighting interval, lighting time, etc. of multiple light sources, not only static images but also dynamic images such as animation effects can be formed, thereby having the effect of being able to form images of more various shapes.
[0027] Furthermore, by blocking light that is more likely to cause chromatic aberration, it is possible to form an image with uniform brightness and color.
[0028] The effects of the present invention are not limited to the effects mentioned above, and those skilled in the art can clearly understand other technical effects that have not been mentioned through the description of the claims. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 1 is a block diagram showing the configuration of a vehicle lamp according to an embodiment of the present invention.
[0030] Figure 2is a perspective view showing a lamp module according to an embodiment of the present invention.
[0031] Figure 3 and Figure 4 FIG. 1 is an exploded perspective view showing a lamp module according to an embodiment of the present invention.
[0032] Figure 5 is a side view showing a lamp module according to an embodiment of the present invention.
[0033] Figure 6 and Figure 7 is an exploded perspective view showing a second lens portion according to an embodiment of the present invention.
[0034] Figure 8 2 is a front view showing the second lens portion according to the embodiment of the present invention.
[0035] Figure 9 is a rear view showing the second lens portion according to the embodiment of the present invention.
[0036] Figure 10 is a rear view illustrating a light transmitting portion formed with a plurality of blocking members according to an embodiment of the present invention.
[0037] Figure 11 Schematic diagram illustrating focal points of corresponding incident lenses and exit lenses among a plurality of incident lenses and a plurality of exit lenses according to an embodiment of the present invention.
[0038] Figure 12 is a rear view illustrating a plurality of blocking members included in a plurality of transmission areas according to an embodiment of the present invention.
[0039] Figure 13 Schematic diagram showing the shapes of openings of blocking members formed at different positions with the center of an optical path adjusting portion according to an embodiment of the present invention as a reference. DETAILED DESCRIPTION
[0040] The advantages and features of the present invention, as well as the methods for achieving these advantages and features, will be clearly understood by referring to the embodiments described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different forms and is not limited to the embodiments disclosed below. These embodiments are provided only to complete the disclosure of the present invention and to fully inform those with basic knowledge of the technical field to which the present invention belongs. The present invention is defined solely by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.
[0041] Therefore, in some embodiments, in order to avoid obscuring the present invention, well-known process steps, well-known structures, and well-known technologies are not described in detail.
[0042] The terms used in this specification are intended to illustrate the embodiments and are not intended to limit the present invention. In this specification, unless otherwise specified, the singular includes the plural. The terms "comprises" and "comprising" used in this specification do not exclude the presence or additional meaning of one or more other constituent elements, steps, operations, and / or elements in addition to the mentioned constituent elements, steps, operations, and / or elements. In addition, "and / or" includes each and all combinations of more than one of the mentioned items.
[0043] Furthermore, the embodiments described in this specification will be described with reference to cross-sectional views and / or schematic diagrams that are idealized examples of the present invention. Therefore, the form of the example diagram may be deformed depending on the manufacturing technology and / or allowable errors. Therefore, the embodiments of the present invention are not limited to the specific forms shown in the diagrams, and changes in form generated according to the manufacturing process are also included. Moreover, in the various figures shown in the present invention, each component may be illustrated to some extent in an enlarged or reduced manner for the convenience of explanation. Throughout the entire specification, the same figure numerals refer to the same components.
[0044] Hereinafter, the present invention will be described based on embodiments of the present invention with reference to the accompanying drawings for describing a vehicle lamp.
[0045] Figure 1 1 is a block diagram showing the configuration of a vehicle lamp according to an embodiment of the present invention.
[0046] Reference Figure 1 The vehicle lamp 1 according to the embodiment of the present invention may include a lamp module 1000 , a control unit 2000 , and a driving unit 3000 .
[0047] In an embodiment of the present invention, the vehicle lamp 1 is used as an example to illustrate the role of forming an image on the road surface around the vehicle that represents various information that needs to be transmitted to surrounding vehicles or pedestrians including the driver, but is not limited to this. The vehicle lamp 1 of the present invention can be used as various lamps provided on the vehicle for lighting or signaling functions.
[0048] For example, the vehicle lamp 1 of the present invention can form an image for a welcome function on the road surface around the vehicle when the driver approaches the vehicle, so that the vehicle can show a reaction similar to welcoming the driver. It can also form an image on the road surface around the vehicle to inform surrounding vehicles or pedestrians of the vehicle's status, such as the vehicle's direction of travel or whether the door is open.
[0049] When the vehicle lamp 1 of the present invention is used to form an image on the road surface around the vehicle, the vehicle lamp 1 of the present invention can be set in various positions such as the exterior rearview mirror, the rocker panel, the front of the vehicle body, the rear of the vehicle body, etc. However, this is only an example to help understand the present invention and is not limited to this. The vehicle lamp 1 of the present invention can be set in various positions that do not cause interference with the irradiated light, so as to form an image on the road surface around the vehicle.
[0050] The lamp module 1000 may play a role in emitting light for forming an image on the road surface around the vehicle. At least one lamp module 1000 may be provided according to the size, shape, position, etc. of the image formed on the road surface around the vehicle.
[0051] Figure 2 is a perspective view showing a lamp module according to an embodiment of the present invention, Figure 3 and Figure 4 FIG. 1 is an exploded perspective view showing a lamp module according to an embodiment of the present invention.
[0052] Reference Figures 2 to 4 The lamp module 1000 according to the embodiment of the present invention may include a light source part 1100 , a first lens part 1200 , and a second lens part 1300 .
[0053] The light source unit 1100 may include a substrate 1110 and a plurality of light sources 1121, 1122, 1123, and 1124 arranged on the substrate 1110. Hereinafter, in an embodiment of the present invention, the plurality of light sources 1121, 1122, 1123, and 1124 are respectively referred to as the first light source 1121, the second light source 1122, the third light source 1123, and the fourth light source 1124.
[0054] In an embodiment of the present invention, the light source unit 1100 includes multiple light sources 1121, 1122, 1123, and 1124 in order to realize dynamic images such as animation effects instead of static images by controlling the lighting sequence, lighting interval, lighting time, etc. of each of the multiple light sources 1121, 1122, 1123, and 1124 by the control unit 2000 described later. A detailed description of this will be given later.
[0055] In addition, in an embodiment of the present invention, the light source unit 1100 includes four light sources 1121, 1122, 1123, and 1124, which is only an example to help understand the present invention and is not limited to this. Depending on the number of images formed by the lamp module 1000 of the present invention, the number of light sources included in the light source unit 1100 may be different.
[0056] The first lens portion 1200 may be located in front of the light source portion 1100 and may adjust a light path so that light generated from the light source portion 1100 is incident on the second lens portion 1300 located in front of the first lens portion 1200 with minimal loss.
[0057] At this time, the light emitting surfaces of the multiple light sources 1121 , 1122 , 1123 , and 1124 can be set to face forward so that light from the multiple light sources 1121 , 1122 , 1123 , and 1124 is incident on the first lens unit 1200 located in front of the light source unit 1100 .
[0058] The first lens portion 1200 is located in front of the light source portion 1100 and the second lens portion 1300 is located in front of the first lens portion 1200, which means that the direction of light irradiated from the lamp module 1000 of the present invention is assumed to be the front direction. The actual direction of the front may be different depending on the position or direction of the lamp module 1000 of the present invention.
[0059] The first lens portion 1200 may include a plurality of optical path adjustment portions 1210, 1220, 1230, 1240 corresponding to the plurality of light sources 1121, 1122, 1123, 1124, respectively. Since in the embodiments of the present invention, the case where the light source portion 1100 includes the first light source 1121 to the fourth light source 1124 is described as an example, the case where the plurality of optical path adjustment portions 1210, 1220, 1230, 1240 include the first optical path adjustment portion 1210, the second optical path adjustment portion 1220, the third optical path adjustment portion 1230 and the fourth optical path adjustment portion 1240 corresponding to the first light source 1121, the second light source 1122, the third light source 1123 and the fourth light source 1124, respectively, is described as an example, but is not limited thereto. The number of optical path adjustment portions may be different according to the number of light sources.
[0060] In an embodiment of the present invention, as multiple optical path adjustment parts 1210, 1220, 1230, and 1240, an aspheric lens capable of converting light incident from each of the multiple light sources 1121, 1122, 1123, and 1124 into parallel light is used as an example for explanation, but the present invention is not limited to this. The multiple optical path adjustment parts 1210, 1220, 1230, and 1240 can use not only aspheric lenses but also various lenses such as a total internal reflection (TIR) lens and a Fresnel lens that can adjust the path of light.
[0061] The plurality of optical path adjustment parts 1210 , 1220 , 1230 , and 1240 are integrally formed with each other, and adjacent optical path adjustment parts among the plurality of optical path adjustment parts 1210 , 1220 , 1230 , and 1240 may be spaced apart at predetermined intervals.
[0062] In an embodiment of the present invention, the arrangement in which adjacent optical path adjustment portions among the multiple optical path adjustment portions 1210, 1220, 1230, and 1240 are separated by predetermined intervals is intended to prevent interference between them when different images are formed by light generated from each of the multiple light sources 1121, 1122, 1123, and 1124.
[0063] In addition, the first lens portion 1200 can be combined with a retaining member 1400 formed with a partition wall 1410, which prevents the light generated from each of the multiple light sources 1121, 1122, 1123, and 1124 from interfering with each other in the process of reaching the second lens portion 1300 via the corresponding optical path adjustment portion of the multiple optical path adjustment portions 1210, 1220, 1230, and 1240. The partition wall 1410 is formed to extend between adjacent optical path adjustment portions of the multiple optical path adjustment portions 1210, 1220, 1230, and 1240 to form multiple through holes 1420 corresponding to each of the multiple optical path adjustment portions 1210, 1220, 1230, and 1240.
[0064] The partition wall 1410 may include a first extension portion 1411 extending toward the light source portion 1100 and a second extension portion 1412 extending toward the second lens portion 1300. Figure 5 As shown, the end of the first extension portion 1411 can be formed to extend from the first lens portion 1200 toward the substrate 1110 through the through hole 1200a formed between adjacent optical path adjustment portions among the plurality of optical path adjustment portions 1210 , 1220 , 1230 , and 124 .
[0065] At this time, the end of the first extension portion 1411 is set to be adjacent to or in contact with the substrate 1110, and the end of the second extension portion 1412 is set to be adjacent to or in contact with the second lens portion 1300, so that the light source portion 1100, the first lens portion 1200 and the second lens portion 1300 can maintain an appropriate distance from each other while allowing the light generated from each of the multiple light sources 1121, 1122, 1123, and 1124 to travel without interference with each other.
[0066] The second lens portion 1300 may play a transmissive role, so as to allow the light incident from the first lens portion 1200 to be emitted and form an image on the road surface around the vehicle.
[0067] Figure 6 and Figure 7 is an exploded perspective view showing a second lens portion according to an embodiment of the present invention, Figure 8 is a front view showing a second lens portion according to an embodiment of the present invention, Figure 9 is a rear view showing the second lens portion according to an embodiment of the present invention, Figure 10 is a rear view showing a light transmission portion formed with a plurality of blocking members according to an embodiment of the present invention, Figure 11 FIG. 4 is a schematic diagram illustrating focal points of corresponding incident lenses and exit lenses among a plurality of incident lenses and a plurality of exit lenses according to an embodiment of the present invention.
[0068] Reference Figures 6 to 11 The second lens portion 1300 according to an embodiment of the present invention may include a plurality of incident lenses 1310 , a plurality of exit lenses 1320 , a light transmitting portion 1330 , and a plurality of blocking members 1340 .
[0069] Multiple incident lenses 1310 can allow light to be incident from the first lens portion 1200, and the light incident on each of the multiple incident lenses 1310 can be emitted through the corresponding output lens in the multiple output lenses 1320. In an embodiment of the present invention, since the multiple incident lenses 1310 and the multiple output lenses 1320 have relatively short focal lengths, the case of using microlenses that are conducive to miniaturization is used as an example for explanation.
[0070] Multiple incident lenses 1310 and multiple exit lenses 1320 can be respectively located on the incident surface 1331 and the exit surface 1332 of the light-transmitting portion 1330. The light-transmitting portion 1330 is formed of a translucent material such as glass, so that light incident on each of the multiple incident lenses 1310 is emitted through the corresponding exit lens in the multiple exit lenses 1320 via the light-transmitting portion 1330.
[0071] The plurality of blocking members 1340 may play a role of allowing a portion of light traveling to a corresponding output lens among the plurality of output lenses 1320 to pass therethrough and blocking another portion according to the shape of an image formed around the vehicle.
[0072] In an embodiment of the present invention, an example is given in which a plurality of blocking members 1340 are formed with openings including a plurality of opening holes 1340a each capable of allowing light to pass therethrough. Depending on the shape of an image formed by the lamp module 1000 of the present invention, the position, number, shape, and size of the opening holes may be changed in a variety of ways.
[0073] In the embodiment of the present invention, the case where the opening portion includes a plurality of opening holes 1340 a is taken as an example for description, but the invention is not limited thereto, and the opening portion may also include a single opening hole.
[0074] The plurality of blocking members 1340 may be formed on the incident surface 1331 of the light transmitting portion 1330 by coating, deposition or other processes. Adjacent blocking members in the plurality of blocking members 1340 may be formed as one body or may be formed separately from each other.
[0075] The focal points F1 of the plurality of incident lenses 1310 may be located at the emission surface 1332 of the light transmitting portion 1330 , and the focal points F2 of the plurality of emission lenses 1320 may be located at the incident surface 1331 of the light transmitting portion 1330 .
[0076] In an embodiment of the present invention, a plurality of blocking members 1340 are arranged to be formed on the incident surface 1331 of the light-transmitting portion 1330 so that the plurality of blocking members 1340 are located at or near the focal point F2 of each of the plurality of output lenses 1320. In this case, since the focal lengths of the plurality of output lenses 1320 are relatively long, the light emitted from the plurality of output lenses 1320 can be prevented from traveling in unnecessary directions, and chromatic aberration can be prevented while having uniform brightness.
[0077] That is, the shorter the focal length of each of the multiple output lenses 1320 becomes, the larger the refraction angle is required to make the light emitted from the multiple output lenses 1320 move forward. In this case, the multiple output lenses 1320 need to be formed to have a larger curvature. As a result, the light emitted from the multiple output lenses 1320 moves in unnecessary directions, making it more likely to generate glare or chromatic aberration. Therefore, by making the focal length of the multiple output lenses 1320 relatively longer by positioning the focal points F2 of the multiple output lenses 1320 at the incident surface 1331 of the light-transmitting portion 1330, the multiple output lenses 1320 can have a relatively smaller curvature.
[0078] Similarly, the focal length can be made relatively long by positioning the focal points F1 of the multiple incident lenses 1310 at the exit surface 1332 of the light transmitting portion 1330 , thereby preventing glare or chromatic aberration while ensuring uniform brightness similar to that emitted by the multiple exit lenses 1320 .
[0079] In addition, the second lens portion 1300 can be divided into multiple transmission areas A1, A2, A3, and A4, and the multiple transmission areas A1, A2, A3, and A4 can play a role in transmitting at least a portion of the light generated from each of the multiple light sources 1121, 1122, 1123, and 1124, and similar to the multiple optical path adjustment portions 1210, 1220, 1230, and 1240, the adjacent transmission areas in the multiple transmission areas A1, A2, A3, and A4 are formed to be separated by predetermined intervals, and the end of the second extension portion 1412 of the above-mentioned retaining member 1400 is arranged to be connected to the separated areas between the adjacent transmission areas in the multiple transmission areas A1, A2, A3, and A4.
[0080] It can be understood that the plurality of transmission areas A1, A2, A3, A4 are areas that contact the exit lens located on the outer side of each of the exit lenses belonging to the plurality of transmission areas A1, A2, A3, A4, and each of the plurality of optical path adjustment parts 1210, 1220, 1230, 1240 is as follows: Figure 8 and Figure 9 As shown, it can have a size smaller than the corresponding transmission area among the multiple transmission areas A1, A2, A3, and A4 so as to be located within the corresponding transmission area among the multiple transmission areas A1, A2, A3, and A4, but is not limited to this. Each of the multiple optical path adjustment parts 1210, 1220, 1230, and 1240 can also have the same size as the corresponding transmission area among the multiple transmission areas A1, A2, A3, and A4.
[0081] For example, among multiple optical path adjustment parts 1210, 1220, 1230, 1240 and multiple transmission areas A1, A2, A3, A4, when the centers of the corresponding optical path adjustment parts and the transmission areas are set to be consistent, the radius of the optical path adjustment part can be formed to have a size that is the same as or smaller than the radius of the transmission area based on the center of the optical path adjustment part.
[0082] At this time, each of the multiple optical path adjustment parts 1210, 1220, 1230, and 1240 is formed to have a size equal to or smaller than the corresponding transmission area in the multiple transmission areas A1, A2, A3, and A4, in order to improve light efficiency by allowing light emitted from each of the multiple optical path adjustment parts 1210, 1220, 1230, and 1240 to be incident on the corresponding transmission area in the multiple transmission areas A1, A2, A3, and A4 without loss.
[0083] In other words, when the size of each of the multiple optical path adjustment parts 1210, 1220, 1230, 1240 is larger than the size of the corresponding transmission area among the multiple transmission areas A1, A2, A3, A4, a portion of the light emitted from the outer area of each of the multiple optical path adjustment parts 1210, 1220, 1230, 1240 cannot be incident on the corresponding transmission area, so that light loss may occur. In the embodiment of the present invention, since each of the multiple optical path adjustment parts 1210, 1220, 1230, 1240 has a size equal to or smaller than the size of the corresponding transmission area among the multiple transmission areas A1, A2, A3, A4, the light emitted from each of the multiple optical path adjustment parts 1210, 1220, 1230, 1240 can be incident on the corresponding transmission area among the multiple transmission areas A1, A2, A3, A4 without loss.
[0084] In the case where the second lens portion 1300 is divided into a plurality of transmission areas A1, A2, A3, and A4, a plurality of incident lenses 1310, a plurality of exit lenses 1320, and a plurality of blocking members 1340 may be formed to be included in each of the plurality of transmission areas A1, A2, A3, and A4. In this case, no incident lens, no exit lens, and no blocking member are formed between adjacent transmission areas in the plurality of transmission areas A1, A2, A3, and A4.
[0085] In the embodiment of the present invention, the light source unit 1100 includes four light sources 1121, 1122, 1123, and 1124. Therefore, the second lens unit 1300 is described as including four transmission areas A1, A2, A3, and A4. Hereinafter, in the embodiment of the present invention, the multiple transmission areas A1, A2, A3, and A4 are referred to as the first transmission area A1, the second transmission area A2, the third transmission area A3, and the fourth transmission area A4, respectively.
[0086] As described above, in the case where the second lens portion 1300 includes the first to fourth transmission areas A1 to A4, the plurality of incident lenses 1310 may include a first incident lens 1311 included in the first transmission area A1, a second incident lens 1312 included in the second transmission area A2, a third incident lens 1313 included in the third transmission area A3, and a fourth incident lens 1314 included in the fourth transmission area A4.
[0087] In addition, the multiple output lenses 1320 can include a first output lens 1321, a second output lens 1322, a third output lens 1323, and a fourth output lens 1324, which are respectively included in the first transmission area A1 to the fourth transmission area A4, similar to the multiple incident lenses 1310, and the multiple blocking members 1340 can also include a first blocking member 1341, a second blocking member 1342, a third blocking member 1343, and a fourth blocking member 1344, which are respectively included in the first transmission area A1 to the fourth transmission area A4, similar to the multiple incident lenses 1310.
[0088] The first to fourth transmission areas A1 to A4 are as described above. Figure 10 Similarly, the blocking member included in one area among the first transmission area A1 to the fourth transmission area A4 can be made to have a different shape from the blocking member included in another area. This is because the image formed by the light passing through one area among the first transmission area A1 to the fourth transmission area A4 and the image formed by the light passing through the other area have different shapes from each other, thereby being able to form images of more various shapes.
[0089] At this time, the aforementioned Figure 10 As an example of the case where the first to fourth stoppers 1341 to 1344 have shapes different from each other, the present invention is not limited thereto, and one of the first to fourth stoppers 1341 to 1344 may have a shape different from another stopper.
[0090] In addition, at least one of the first to fourth transmission areas A1 to A4 may be as follows. Figure 12 Similarly, the shape of the blocking member is made different according to the position of the blocking member. Making the shape of the blocking member different can be understood as making at least one of the position, number, shape, and size of the aforementioned opening holes 1340a different.
[0091] That is, as the light emitted from the multiple optical path adjustment parts 1210, 1220, 1230, and 1240 is emitted from a position close to the outside of the corresponding optical path adjustment part, the possibility of generating chromatic aberration is relatively higher. Therefore, the blocking member included in each of the multiple transmission areas A1, A2, A3, and A4 can have different shapes from each other when it is located at the center of the corresponding optical path adjustment part in the multiple optical path adjustment parts 1210, 1220, 1230, and 1240 and when it is set apart from the center of the corresponding optical path adjustment part in the radial direction.
[0092] For example, Figure 13As shown, it can be known that, among the multiple first blocking members 1341, based on the shape of the first blocking member located at the center of the first optical path adjustment portion 1210, a portion of the multiple opening holes of the first blocking member radially spaced apart from the center of the first optical path adjustment portion 1210 in the separation direction is removed. As mentioned above, this is because compared with the center of the first optical path adjustment portion 1210, the light emitted through the outside is more likely to produce chromatic aberration, and therefore it is provided to block light that may produce chromatic aberration.
[0093] at this time, Figure 13 As an example showing the shape of the plurality of first blocks 1341 when the second lens portion 1300 is observed from the front, based on the shape of the first blocker located at the center of the first optical path adjustment portion 1210 among the plurality of first blocks 1341, a portion of the upper opening hole of the first blocker located on the upper side is removed, a portion of the lower opening hole of the first blocker located on the lower side is removed, and a portion of the left and right opening holes of the first blocks located on the left and right sides, respectively, are removed.
[0094] In an embodiment of the present invention, although the situation of removing a portion of the opening hole located on the upper side, lower side, left side, and right side according to the position of the first blocking member is described as an example, it is not limited to this. According to the position of the first blocking member, it may also include the situation of removing a portion of the opening hole located in the diagonal direction.
[0095] In addition, in the aforementioned Figure 13 Although the first transmission area A1 is used as an example for description, the second barrier 1342, the third barrier 1343, and the fourth barrier 1344 respectively included in the second transmission area A2, the third transmission area A3, and the fourth transmission area A4 can also be similarly applied.
[0096] The control unit 2000 controls the lighting time, lighting sequence, lighting interval and lighting brightness of each of the multiple light sources 1121, 1122, 1123, and 1124, so that the lamp module 1000 of the present invention can form not only static images but also dynamic images.
[0097] For example, the control unit 2000 can cause each of the first to fourth light sources 1121 to 1124 to be lit in a set order during a set time period, or can cause two or more light sources from the first to fourth light sources 1121 to 1124 to be lit simultaneously in a set order during a set time period, or can cause one of the first to fourth light sources 1121 to 1124 to be lit at a different lighting brightness than another.
[0098] At this time, the image formed by each of the plurality of light sources 1121 , 1122 , 1123 , and 1124 when lit may have a single shape different from each other, or may form one shape by combining two or more images.
[0099] The driving part 3000 may rotate the lamp module 1000 in at least one direction, thereby changing a position where an image is formed.
[0100] For example, the control unit 2000 can control the driving unit 3000 to rotate the lamp module 1000 in at least one direction so that when the driver approaches the vehicle, the position of the image formed for the welcome function and the position of the image formed for enabling surrounding vehicles or pedestrians to be recognized when the door is opened are different from each other.
[0101] As described above, the vehicle lamp 1 of the present invention can form a wider variety of images while blocking light that is more likely to produce color difference among the light emitted from each of the multiple optical path adjustment parts 1210, 1220, 1230, and 1240 by making different parts of the multiple blocking members 1340 have opening shapes with different shapes, thereby preventing the occurrence of color difference.
[0102] Those with basic knowledge in the technical field to which the present invention belongs can understand that the present invention can be implemented in other specific forms without changing the technical concept or essential features of the present invention. Therefore, it should be understood that the embodiments described above are illustrative in all aspects and not restrictive. The scope of the present invention is not limited by the above detailed description, but is embodied by the claims. It should be interpreted that all changes or deformations derived from the meaning and scope of the claims and their equivalents are included within the scope of the present invention.
Claims
1. A vehicle lamp, which is a vehicle lamp that forms an image of a predetermined shape by light emitted from at least one lamp module, wherein: The at least one lamp module comprises: a light source unit, comprising a plurality of light sources; a first lens portion including a plurality of light path adjustment portions that adjust a path of light generated from each of the plurality of light sources; and The second lens portion transmits the light incident from the first lens portion to emit the light, Wherein, the second lens portion includes: The plurality of transmission areas transmit light emitted from each of the plurality of optical path adjustment parts.
2. The vehicle lamp according to claim 1, wherein The optical path adjustment portions adjacent to each other among the plurality of optical path adjustment portions are provided to be spaced apart at predetermined intervals.
3. The vehicle lamp according to claim 1, wherein The first lens portion is combined with a holder formed with a plurality of through holes corresponding to each of the plurality of optical path adjustment portions. The retaining member comprises: a partition wall dividing the plurality of through holes; a first extending portion extending from the partition wall toward the light source portion; and The second extending portion extends from the partition wall toward the second lens portion.
4. The vehicle lamp according to claim 3, wherein: The first lens portion includes: The through hole is for the end portion of the first extension portion to pass through, so that the end portion of the first extension portion extends toward the light source portion.
5. The vehicle lamp according to claim 1, wherein The second lens portion includes: light-transmitting portion; a plurality of incident lenses formed on the incident surface of the light-transmitting portion; a plurality of exit lenses formed on the exit surface of the light-transmitting portion; and The plurality of blocking members are formed with openings, allowing a portion of the light traveling to each of the plurality of exit lenses to pass therethrough and blocking the other portion.
6. The vehicle lamp according to claim 5, wherein: The plurality of blocking members are formed on the incident surface of the light transmitting portion.
7. The vehicle lamp according to claim 5, wherein: The focal points of the multiple incident lenses are located on the exit surface of the light transmission portion, The focal points of the plurality of exit lenses are located on the incident surface of the light transmitting portion.
8. The vehicle lamp according to claim 5, wherein The plurality of incident lenses, the plurality of exit lenses, and the plurality of blocking members are located within the plurality of transmission areas. Transmission areas adjacent to each other among the plurality of transmission areas are formed to be spaced apart at predetermined intervals.
9. The vehicle lamp according to claim 5, wherein The plurality of blocking members include a blocking member included in one of the plurality of transmission areas and a blocking member included in another of the plurality of transmission areas, Also, the blocking member in each of the mutually different transmission areas included in the plurality of transmission areas has openings having shapes different from each other.
10. The vehicle lamp according to claim 5, wherein The blocking members included in each of the plurality of transmission areas among the plurality of blocking members form openings having different shapes from each other depending on positions formed with reference to the center of a corresponding optical path adjusting portion among the plurality of optical path adjusting portions.
11. The vehicle lamp according to claim 5, wherein In an opening portion of a blocking member included in each of the multiple blocking members in the multiple transmission areas, compared to a case where it is located at the center of a corresponding optical path adjustment portion among the multiple optical path adjustment portions, a portion of the opening portion corresponding to the radial direction is removed when it is radially spaced apart from the center of the corresponding optical path adjustment portion.
12. The vehicle lamp according to claim 1, wherein Each of the plurality of optical path adjusting portions has a size equal to or smaller than a corresponding transmission area among the plurality of transmission areas.
13. The vehicle lamp according to claim 1, further comprising: a control unit that controls the operation of the plurality of light sources, The control unit controls at least one of a lighting time, a lighting order, a lighting interval, and a lighting brightness of each of the plurality of light sources.
14. The vehicle lamp according to claim 1, further comprising: a driving unit, configured to adjust the position of the at least one lamp module, The driving unit rotates the at least one lamp module in at least one direction to change a position where the image is formed.