Optical device for a motor vehicle

Abstract

Embodiments of the present disclosure describe an optical device for a motor vehicle that reduces the overall size of an optical system of the motor vehicle by implementing an advantageous packaging configuration, ensures sufficient illumination and high luminous efficiency through efficient operation of a light source, and improves the quality of an illumination image projected to an illumination area.

Description

Technical Field

[0001] The present disclosure relates to an optical device for a motor vehicle, which ensures high light emission efficiency of an optical system of the motor vehicle and reduces the size of the optical system of the motor vehicle. Background Art

[0002] Motor vehicles are usually provided with lighting devices to ensure the driver's visibility of the driving direction and indicate the driving status when driving at night.

[0003] Lighting devices can be classified according to the direction of light or according to the functional use of the light - for example, headlights, fog lights, turn signals, brake lights, reversing lights, etc.

[0004] The headlights may be configured to emit a low beam in normal driving situations and to emit a high beam in special situations.

[0005] On the other hand, the overall size of the optical system of future motor vehicles tends to be smaller. When the optical system is downsized, failure to meet illumination requirements may lead to problems with non-compliance with regulations and problems with ensuring forward visibility.

[0006] The above content as background technology is intended to provide a better understanding of the background of the present disclosure and should not be regarded as an admission that the present disclosure belongs to the prior art known to ordinary technicians in the field. Summary of the invention

[0007] Embodiments of the present disclosure provide methods for achieving advanced lamp design by streamlining the optical system, complying with regulations by providing sufficient lighting, and improving marketability by providing sufficient lighting to ensure peripheral visibility.

[0008] One aspect of the present disclosure provides an optical device for a motor vehicle, i.e., a vehicle, which reduces the overall size of the optical system of the motor vehicle by achieving a favorable packaging structure, ensures sufficient lighting and high luminous efficiency through efficient operation of a light source, and improves the quality of a lighting image projected onto a lighting area.

[0009] According to an embodiment of the present disclosure, an optical device for a motor vehicle may include multiple light sources that emit light. The optical device further includes a first lens among multiple first lenses, and the first lens matches a light source among the multiple light sources. The first lens has a convex or concave vertical cross-section. The optical device further includes a second lens among multiple second lenses. The second lens matches the first lens and receives light transmitted through the first lens. The second lens has a convex or concave horizontal cross-section. The optical device further includes a third lens among multiple third lenses, and the third lens receives light transmitted through the second lens and has a transmission portion that matches the second lens. A plurality of units are arranged on the exit surface of the transmission portion.

[0010] An illumination area may be set for each matching light source, first lens, and second lens.

[0011] The first lens may have a quadrilateral horizontal cross-section.

[0012] The second lens may have a convex or concave horizontal cross section and a quadrilateral vertical cross section.

[0013] The distance between the first lens and the second lens matched with each other and the distance between the second lens and the transmission portion of the third lens matched with the second lens may be uniform.

[0014] Due to the convexity or concavity of the horizontal cross-section of the second lens, the distance from the second lens to the light source may increase as the radius of curvature decreases and decrease as the radius of curvature increases.

[0015] The transmission portion of the third lens may have an aspherical incident surface and a uniform radius of curvature.

[0016] The plurality of light sources can be matched with the plurality of first lenses to form a plurality of light modules, and different illumination areas are set for each of the plurality of corresponding light modules.

[0017] The plurality of light modules may be arranged laterally. The plurality of second lenses may be arranged laterally to match the corresponding plurality of light modules. The plurality of third lenses may extend laterally so that each corresponding transmission portion is laterally spaced apart to match the plurality of second lenses.

[0018] Each of the plurality of light modules may include a light focusing module and a light diffusion module. The light focusing module may form a light beam pattern on a transverse center line of the illumination area. The light diffusion module may form a diffuse light beam pattern on a transverse center line of the illumination area.

[0019] The first lens of the light-condensing module may be smaller than the first lens of the light-diffusing module in a longitudinal direction.

[0020] The respective plurality of light sources of the condensing light module and the diffusion light module may be disposed at centers of the respective plurality of first lenses such that the light sources of the condensing light module are located at a lower position than the light sources of the diffusion light module.

[0021] The curvature radius of the exit surface of the first lens of the condensing module may be smaller than the curvature radius of the exit surface of the first lens of the diffusing module.

[0022] The optical device for a motor vehicle having the above structure reduces the overall size of the optical system of the motor vehicle by achieving a favorable packaging structure, ensures sufficient illumination and high luminous efficiency through efficient operation of the light source, and improves the quality of the illumination image projected onto the illumination area. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a view showing an optical apparatus for a motor vehicle according to an embodiment of the present disclosure.

[0024] Figure 2 yes Figure 1 A side view of an optical device for a motor vehicle is shown.

[0025] Figure 3 yes Figure 1 A plan view of an optical device for a motor vehicle is shown.

[0026] Figure 4 is a cross-sectional view of a third lens according to an embodiment of the present disclosure.

[0027] Figure 5 is a view illustrating an exit surface of a third lens according to an embodiment of the present disclosure.

[0028] Figure 6 is a view showing an optical apparatus for a motor vehicle according to an embodiment of the present disclosure.

[0029] Figure 7 is a view for describing a setting according to a shape of a second lens in an optical apparatus for a motor vehicle according to an embodiment of the present disclosure.

[0030] Figure 8 is a view for describing a setting according to a shape of a second lens in an optical apparatus for a motor vehicle according to an embodiment of the present disclosure.

[0031] Fig. 9 is a view showing a beam pattern of an optical apparatus for a motor vehicle according to an embodiment of the present disclosure.

[0032] Fig.10 is a view illustrating a light source and a first lens according to an embodiment of the present disclosure.

[0033] Fig.11 is a side view of a light source and a first lens according to an embodiment of the present disclosure.

[0034] Fig.12 2 is a view illustrating beam patterns of a condensing light module and a diffusing light module according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] The embodiments disclosed herein are described in detail with reference to the accompanying drawings. However, regardless of the figure numbers, the same or similar components are given the same reference numerals, and repeated descriptions of these components are omitted.

[0036] The suffixes “module” and “unit” used for components in the description are merely given for convenience in writing of the specification or are used interchangeably and do not necessarily indicate unique meanings or roles of themselves.

[0037] When it is determined that a detailed description of the relevant known technology may make the essence of the embodiments disclosed herein unclear, the detailed description is omitted. In addition, it should be understood that the drawings are only intended to help understand the embodiments disclosed herein, and are not intended to limit the disclosed technical ideas. The embodiments herein are not limited to the drawings, but include all modifications, equivalents or alternative forms within the spirit and technical scope of the present disclosure.

[0038] Terms including ordinal numbers such as "first", "second", etc. may be used to describe various components, but the components are not limited by these terms. These terms are only used to distinguish one component from another.

[0039] It should be understood that when a component is referred to as being "connected" or "coupled" to another component, the component may be directly connected or coupled to the other component, but other components may be interposed between the two components. Conversely, it should be understood that when a component is referred to as being "directly connected" or "directly coupled" to another component, no other components are interposed.

[0040] When a component, device, element, etc. of the present disclosure is described as having a certain purpose or performing a certain operation, function, etc., the component, device or element should be considered herein as being "configured to" satisfy the purpose or perform the operation or function.

[0041] Unless the context clearly indicates otherwise, a singular expression also includes a plural expression.

[0042] In the present specification, terms such as “include” or “have” are intended to indicate the existence of the implemented features, numbers, steps, operations, components, parts or a combination thereof described in the specification, and should not be understood as excluding the possibility of the existence or addition of one or more other features, numbers, steps, operations, components, parts or a combination thereof.

[0043] The controller may include a communication device for communicating with other controllers or sensors to control the functions for which the controller is responsible, a memory for storing operating system or logic instructions and input and output information, and one or more processors for performing determinations, calculations, decisions, etc. required to control the functions for which the controller is responsible.

[0044] An optical apparatus for a motor vehicle according to an embodiment of the present disclosure is described below with reference to the accompanying drawings.

[0045] According to an embodiment of the present disclosure, an optical device for a motor vehicle includes a plurality of light sources 10 that emit light. The optical device further includes a first lens 20 that matches a light source in the plurality of light sources 10. The first lens 20 has a convex or concave vertical cross section. The optical device further includes a second lens 30 that receives light transmitted through the first lens 20. The second lens 30 has a convex or concave horizontal cross section. The optical device further includes a third lens 40 that receives light transmitted through the second lens 30. The third lens 40 has a transmission portion 41 that matches the second lens 30. A plurality of units 42 are arranged on an exit surface of the transmission portion 41.

[0046] The present disclosure includes a plurality of light sources 10 (such as Figure 2 ), a first lens 20, a second lens 30 and a third lens 40. The present disclosure ensures advanced lamp design by simplifying the lenses.

[0047] Each of the plurality of light sources 10 may include an LED. The light sources 10 may be individually turned on and off and operated to generate various beam patterns. The light sources 10 may be turned on and off by the control of a controller, which sends a control signal to the light sources 10 upon receiving an external signal.

[0048] The first lens of the plurality of first lenses 20 is matched with a specific light source (i.e., a light source, a corresponding light source, a first light source, or a first light source unit) of the plurality of light sources 10, i.e., associated. The first lens 20 is disposed in front of the corresponding light source 10 to receive light, i.e., light, emitted from the light source 10. The first lens 20 is configured to control the vertical direction angle and may have a convex or concave vertical cross section. In other words, the light emitted from the light source 10 passes through the first lens 20 and moves at a vertical direction angle to be incident on a specific range of the second lens 30.

[0049] The second lens 30 receives the light transmitted through the first lens 20 and matches the first lens 20. The second lens 30 is configured to control the horizontal direction angle and may have a convex or concave horizontal cross section. In other words, the light transmitted through the first lens 20 passes through the second lens 30 and moves at a horizontal direction angle to be incident on each transmission portion 41 of the third lens 40.

[0050] The distribution of light emitted from the light source 10 is determined by the vertical direction angle control of the first lens 20 and the horizontal direction angle control of the second lens 30. Therefore, light incident on the transmission portion 41 of the third lens 40 may be projected through the plurality of cells 42 as collimated light.

[0051] According to an embodiment of the present disclosure, a beam pattern is formed when the vertical direction angle and the horizontal direction angle of the light emitted from the light source 10 are adjusted by the first lens 20 and the second lens 30, and the light is projected through the third lens 40. In particular, the position, size, curved surface shape, and tilt angle of the first lens 20 and the second lens 30 determine the direction angle, the amount of light overlap, and the luminous intensity, so that various beam patterns can be achieved by optimizing the shapes and settings of the first lens 20 and the second lens 30.

[0052] In addition, if Figure 4 and Figure 5 As shown, the third lens 40 has an aspherical incident surface. A plurality of units 42 are arranged on the exit surface so that the light can be aligned when passing through the aspherical lens and then projected as collimated light through the plurality of units 42. The plurality of units 42 can be arranged longitudinally or transversely on the exit surface of the third lens 40 so that the light can be projected forward as collimated light.

[0053] The transmission portion 41 of the third lens 40 has an aspherical incident surface, but light can be projected as collimated light or convergent light by adjusting the radius of curvature, and the design can be based on a desired beam pattern that is ultimately projected.

[0054] The first lens 20, the second lens 30, and the third lens 40 may include a plurality of lenses, respectively. In particular, a plurality of lenses may be integrated into each of the first lens, the second lens, and the third lens, or these lenses may be integrated as a whole.

[0055] Specifically, Figure 1 As shown, a plurality of light sources 10 may be provided for each first lens 20, and an illumination area may be respectively provided for each light source 10, first lens 20, and second lens 30 that match each other.

[0056] According to an embodiment of the present disclosure, a plurality of light sources 10 are provided, the plurality of light sources 10 are divided for each first lens 20 , and different regions are irradiated through the second lens 30 and the first lens 20 matched with the divided light sources 10 , thereby forming a beam pattern.

[0057] In other words, Figure 1 As shown, the transmission parts 41 of the first lens 20, the second lens 30 and the third lens 40 are arranged transversely to match each other in the front-to-back direction. A plurality of light sources 10 are disposed behind each of the first lenses 20, so that a beam pattern can be formed at different positions by light emitted from each of the light sources 10. The beam pattern can be changed by adjusting the light emitting state of each of the light sources 10 according to various situations.

[0058] On the other hand, the first lens 20 may have a convex vertical cross section and a quadrilateral horizontal cross section.

[0059] Therefore, the vertical cross-sections of the incident surface and the exit surface of the first lens 20 are formed in a convex shape, thereby adjusting the vertical direction angle of the light emitted from the light source 10. The vertical direction angle can be adjusted according to the curvature radius of the incident surface and the curvature radius of the exit surface of the first lens 20. The shape of the first lens 20 may determine the area of ​​light incident on the second lens 30. The vertical direction angle refers to the angle formed between the light emitted from the light source 10 and the optical axis on the vertical line. The shape of the first lens 20 determines the longitudinal area of ​​the light incident on the second lens 30.

[0060] In addition, a horizontal cross-section of the first lens 20 is formed in a quadrangular shape so that a vertical direction angle of light emitted from the light source 10 is not adjusted.

[0061] On the other hand, in the second lens 30 , a horizontal cross section may be formed in a convex or concave shape, and the horizontal cross section may be formed in a quadrilateral shape.

[0062] Therefore, the horizontal cross-sections of the incident surface and the exit surface of the second lens 30 are formed in a convex shape, thereby adjusting the horizontal direction angle of the light emitted from the light source 10. The horizontal direction angle can be adjusted according to the curvature radius of the incident surface and the curvature radius of the exit surface of the second lens 30. The shape of the second lens 30 may determine the area of ​​light incident on the third lens 40. The horizontal direction angle refers to the angle formed between the light emitted from the light source 10 and the optical axis on the horizontal line. The shape of the second lens 30 determines the lateral area of ​​light incident on the third lens 40.

[0063] In addition, the vertical cross-section of the second lens 30 is formed in a quadrangular shape so that the vertical direction angle of the light emitted from the light source 10 is not adjusted.

[0064] Therefore, the first lens 20 controls the vertical direction angle and the second lens 30 controls the horizontal direction angle, so that the light is entirely incident on the corresponding transmission portion 41 of the third lens 40 , thereby forming a clear beam pattern when the light passes through the third lens 40 .

[0065] On the other hand, Figure 6 As shown, the distance between the first lens 20 and the second lens 30 matched with each other and the distance between the second lens 30 and the transmission portion 41 of the third lens 40 matched with the second lens 30 may be uniform.

[0066] According to an embodiment, the incident surface and the exit surface of the first lens 20 may have a uniform curvature radius. The incident surface and the exit surface of the second lens 30 may have a uniform curvature radius, and the transmission portion 41 of the third lens 40 may have a uniform aspheric curvature. Therefore, the first lens 20 and the second lens 30 matched with each other are arranged at a uniform distance, and the second lens 30 and the transmission portion 41 of the third lens 40 matched with the second lens 30 are arranged at a uniform distance, so that when the light emitted from each light source 10 passes through the lens and forms a beam pattern, a uniform beam pattern can be formed.

[0067] In addition, even when the third lens 40 extends diagonally, the first lens 20 and the second lens 30 can be arranged diagonally according to the shape of the third lens 40 so that the distance between the lenses is uniform, so that the light emitted from the plurality of light sources 10 can form a uniform beam pattern.

[0068] On the other hand, due to the convexity or concavity of the horizontal cross section of the second lens 30 , the distance from the second lens to each light source 10 increases as the radius of curvature decreases, and decreases as the radius of curvature increases.

[0069] The second lens 30 is placed between the first lens 20 and the third lens 40 so that light transmitted through the first lens 20 is incident on the same region of the third lens 40. The position of the second lens 30 may be changed according to the shape of the second lens 30.

[0070] For example, Figure 7 As shown, when the horizontal cross-section of the second lens 30 is formed in a convex shape and the radius of curvature is reduced due to the convexity of the second lens 30, the refraction angle of the light incident on the second lens 30 through the first lens 20 increases. Therefore, by increasing the distance from the first light source 10, the second lens 30 can be disposed close to the third lens 40.

[0071] In addition, if Figure 8 As shown, when the curvature radius of the horizontal cross section increases due to the convexity of the second lens 30, the refraction angle of the light incident on the second lens 30 through the first lens 20 decreases. Therefore, by reducing the distance from the first light source 10, the second lens 30 can be disposed away from the third lens 40.

[0072] According to an embodiment of the present disclosure, the position of the second lens 30 may be adjusted according to the curvature radii of the incident surface and the exit surface of the second lens 30 , thereby ensuring the installation freedom of the first lens 20 , the second lens 30 , and the third lens 40 .

[0073] On the other hand, Figure 4 and Figure 5As shown, the transmission portion 41 of the third lens 40 may have an aspherical incident surface, and the curvature radius of the transmission portion 41 may be uniform.

[0074] The third lens 40 has an aspherical incident surface so that the light can be projected onto a position where a beam pattern is to be formed, and the light can be projected as collimated light through a plurality of cells 42 formed on an exit surface.

[0075] In addition, the curvature radius of the aspherical surface of the transmission portion 41 of the third lens 40 is uniform, so that the third lens can be disposed at a uniform distance from the second lens 30 matched with the transmission portion 41. In addition, when the light transmitted through the second lens 30 and incident on the transmission portion 41 is incident on the same area of ​​the transmission portion 41, a uniform beam pattern can be projected through the transmission portion 41.

[0076] On the other hand, according to an embodiment of the present disclosure, a plurality of light sources 10 may be matched with a plurality of first lenses 20 to form a light module, and different illumination areas may be set for each light module.

[0077] like Figure 1 As shown, a portion of the plurality of light sources 10 and the first lens 20 matched with the portion of the light source respectively form a plurality of light modules. The corresponding plurality of light modules are arranged laterally. In addition, the plurality of second lenses 30 are matched with the corresponding plurality of light modules, and the transmission portion 41 of the third lens 40 is matched with the plurality of second lenses 30.

[0078] Specifically, the corresponding plurality of light modules include a plurality of light sources 10, and each light source 10 is turned on and off individually, so that various beam patterns can be formed according to the light emitting state of each light source 10. For example, when the plurality of light sources 10 in the corresponding light module are all turned on, a full high beam can be formed. The beam pattern is diversified by turning on and off the corresponding light sources 10 individually according to the surrounding road environment, vehicle speed, and whether there are obstacles, thereby allowing various lighting functions to be realized, such as communication functions, the formation of beam shadows and low beam patterns, and the like.

[0079] Different illumination areas can be set for the corresponding plurality of light modules in this way, and the beam patterns can be diversified by selectively turning on and off the corresponding plurality of light sources 10 .

[0080] Specifically, a plurality of optical modules may be arranged laterally, the second lenses 30 may be arranged laterally to match the corresponding optical modules, and the third lenses 40 may extend laterally so that the transmission portions 41 are laterally spaced apart to match the second lenses 30 .

[0081] The third lens 40 is in a laterally extending shape according to the lateral arrangement of the plurality of optical modules and the second lens 30 , so that a compact and laterally extending lamp design can be achieved.

[0082] Therefore, the light emitted from the respective light modules may form separate beam patterns, and some of the beam patterns formed by the respective light modules may overlap, while other beam patterns may be spaced apart to be projected to the illumination area.

[0083] The plurality of light modules 100 may include a light-condensing module 110 and a light-diffusing module 120 .

[0084] The focusing light module 110 may form a beam pattern in which light is focused on a transverse center line in the illumination area, and the diffusion light module 120 may form a beam pattern in which light is diffused from the transverse center line in the illumination area.

[0085] In other words, the focusing module 110 forms a beam pattern on a transverse center line of the illumination area, so that the beam pattern is formed in a hot zone area of ​​the illumination area.

[0086] In addition, contrary to the beam pattern formed by the condensing light module 110, the diffusion light module 120 forms a beam pattern that diffuses longitudinally from a transverse center line in the illumination area.

[0087] Therefore, the light beam pattern formed by the light focusing module 110 projects light to the hot zone area in the illumination area, thereby ensuring sufficient illumination. The light diffusion module 120 forms a light beam pattern in the entire illumination area, thereby ensuring visibility.

[0088] In other words, Fig. 9 As shown, the beam pattern formed by the focusing module 110 is projected onto the hot zone area on the transverse center line of the illumination area. The beam pattern formed by the diffuse light module 120 is projected onto the entire illumination area, thereby ensuring sufficient illumination and visibility of the beam pattern projected onto the illumination area.

[0089] For this reason, Fig.10 and Fig.11 As shown, the first lens 20 a of the light-condensing module 110 may be smaller than the first lens 20 b of the light-diffusing module 120 in the longitudinal direction.

[0090] In addition, the light sources 10a and 10b are respectively disposed at the centers of the corresponding first lenses 20a and 20b in the condensing module 110 and the diffusion light module 120 so that the light source 10a of the condensing module 110 can be located lower than the light source 10b of the diffusion light module 120.

[0091] The light focusing module 110 projects light to the hot zone area of ​​the illumination area, and the light emitted from the light source 10a of the light focusing module 110 may pass through the first lens 20a to be incident on the lower portion of the second lens 30. Therefore, the light focusing module 110 is positioned to match the lower portion of the second lens 30, and the first lens 20a of the light focusing module 110 is smaller than the first lens 20b of the diffuse light module 120, so that the light transmitted through the first lens 20a may be incident on the lower portion of the second lens 30. In addition, the light source 10a of the light focusing module 110 is disposed at the center of the first lens 20a, so that when the light emitted from the light source 10a of the light focusing module 110 passes through the first lens 20a, the vertical direction angle of the first lens 20a is controlled and the light may be incident on the lower portion of the second lens 30. Therefore, when the light emitted from the light focusing module 110 passes through the second lens 30, the horizontal direction angle is controlled and the light is incident on the lower portion of the third lens 40, thereby forming a beam pattern on the transverse center line which is the hot zone area in the illumination area.

[0092] The diffuse light module 120 projects light to the entire illumination area. When light emitted from the light source 10b of the diffuse light module 120 passes through the first lens 20b and is incident on the second lens 30, the light is incident on the entire second lens 30. Therefore, the diffuse light module 120 is positioned to match the entire second lens 30 and is larger than the condensing module 110, so that the light transmitted through the first lens 20b can be incident on the entire second lens 30.

[0093] In addition, the light source 10b of the diffuse light module 120 is disposed at the center of the first lens 20b, so that when the light emitted from the light source 10b of the diffuse light module 120 passes through the first lens 20b, the vertical direction angle of the first lens 20b is controlled and the light can be incident on the entire second lens 30. Therefore, when the light emitted from the diffuse light module 120 passes through the second lens 30, the horizontal direction angle is controlled and the light is incident on the entire third lens 40, so that a beam pattern diffused in the up-and-down directions from the transverse center line of the illumination area can be formed.

[0094] In addition, the curvature radius of the exit surface of the first lens 20a of the focusing module 110 is smaller than the curvature radius of the exit surface of the first lens 20b of the diffuse light module 120, so that the refraction amount of light passing through the first lens 20a of the focusing module 110 can be increased to focus the light in the hot zone area of ​​the illumination area.

[0095] According to an embodiment of the present disclosure, a beam pattern may be formed in the illumination area by each light module.

[0096] For example, Figure 1The condensing module 110 and the diffuse light module 120 are shown to be arranged laterally. Assuming that each light module is provided with four light sources 10, the condensing module 110 and the diffuse light module 120 form partially overlapping beam patterns in or around the hot zone area of ​​each illumination area.

[0097] Therefore, if Fig.12 As shown, the focusing module 110 and the diffuse light module 120 can form their own beam patterns for the illumination area, and as shown in FIG. Fig. 9 As shown, the beam pattern can be projected to the hot zone area and the entire area by combining the beam patterns of the corresponding multiple light modules.

[0098] Therefore, according to the embodiment of the present disclosure, sufficient illumination of the hot zone area which is the central part of the illumination area is ensured, and a beam pattern can be implemented in the entire illumination area so that uniform light can be projected to the target illumination area.

[0099] The optical device for a motor vehicle having the structure described herein reduces the overall size of the optical system of the motor vehicle by achieving a favorable packaging configuration, ensures sufficient illumination and high luminous efficiency through efficient operation of the light source, and improves the quality of the illumination image projected onto the illumination area.

[0100] The specific embodiments of the present disclosure have been described in detail. However, it is obvious to those skilled in the art that various changes and modifications can be made within the scope of the technical spirit of the present disclosure, and these changes and modifications naturally belong to the appended claims.

Claims

1. An optical device for a motor vehicle, include: a plurality of light sources configured to emit light; a first lens among a plurality of first lenses, the first lens matching a light source among the plurality of light sources and having a convex or concave vertical cross-section; a second lens among a plurality of second lenses, the second lens matching the first lens, receiving the light transmitted through the first lens, and having a convex or concave horizontal cross section; as well as A third lens among the plurality of third lenses receives the light transmitted through the second lens and has a transmission portion matched with the second lens, wherein a plurality of units are arranged on an exit surface of the transmission portion.

2. The optical device according to claim 1, in, An illumination area is set for each matching light source, the first lens, and the second lens.

3. The optical device according to claim 1, in, The first lens has a quadrilateral horizontal cross-section.

4. The optical device according to claim 1, in, The second lens has a convex or concave horizontal cross section and a quadrilateral vertical cross section.

5. The optical device according to claim 1, in, The distance between the first lens and the second lens matched with each other and the distance between the second lens and the transmission portion of the third lens matched with the second lens are uniform.

6. The device according to claim 1, in, Due to the convexity or concavity of the horizontal cross-section of the second lens, the distance from the second lens to the light source increases as the radius of curvature decreases and decreases as the radius of curvature increases.

7. The optical device according to claim 1, in, The transmission portion of the third lens has an aspherical incident surface and a uniform curvature radius.

8. The optical device according to claim 1, in, The plurality of light sources are matched with the plurality of first lenses to form a plurality of light modules, and Different lighting areas are set for each of the corresponding plurality of light modules.

9. The optical device according to claim 8, in, The multiple optical modules are arranged horizontally, The plurality of second lenses are arranged laterally to match the corresponding plurality of optical modules, and The plurality of third lenses extend laterally such that each corresponding transmissive portion is laterally spaced apart to match the plurality of second lenses.

10. The optical device according to claim 8, in, Each of the plurality of light modules comprises a light focusing module and a light diffusion module, and The focusing module forms a beam pattern on the transverse center line of the illumination area, and The diffuse light module forms a light beam pattern diffused from a transverse center line of the illumination area.

11. The optical device according to claim 10, in, The first lens of the light-condensing module is smaller than the first lens of the light-diffusing module in a longitudinal direction.

12. The optical device according to claim 11, in, The respective plurality of light sources of the condensing module and the diffusion light module are disposed at the centers of the respective plurality of first lenses, so that the light source of the condensing module is located at a lower position than the light source of the diffusion light module.

13. The optical device according to claim 10, in, The curvature radius of the exit surface of the first lens of the condensing module is smaller than the curvature radius of the exit surface of the first lens of the diffusing light module.

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