OPTICAL DEVICE FOR A MOBILE VEHICLE
The optical device for mobile vehicles optimizes light distribution through a favorable housing configuration and lens arrangement, addressing size and luminance challenges to enhance illumination and visibility.
Patent Information
- Application Number
- DE102023132945
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-06-19
- Filing Date
- 2023-11-27
- Publication Date
- 2024-12-19
AI Technical Summary
Existing optical systems in mobile vehicles face challenges in reducing size while maintaining sufficient luminance and compliance with illumination requirements, leading to visibility issues.
An optical device for mobile vehicles with a favorable housing configuration, utilizing a plurality of lenses with specific cross-sections and orientations to optimize light distribution, forming converging and diffusing beam patterns for enhanced illumination and visibility.
The device achieves reduced overall size, high luminous efficiency, and improved illumination quality by efficiently projecting light patterns, ensuring compliance with regulations and enhancing peripheral visibility.
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Abstract
Description
BACKGROUNDTechnical field
[0001] The present disclosure relates to an optical device for a mobile vehicle (“Mobile Vehicle”) that ensures high light efficiency and reduces the size of the optical system of the mobile vehicle. Description of the state of the art
[0002] A mobile vehicle is generally equipped with a lighting device to ensure the driver's visibility in the direction of travel and to signal the driving status when driving at night.
[0003] The lighting equipment can be classified according to the direction of illumination or the purpose of the lighting function, e.g. headlights, fog lights, indicator lights, brake lights, reversing lights, etc.
[0004] The headlights can be set to emit low beam in normal driving situations and high beam in special situations.
[0005] On the other hand, the optical system for a mobile vehicle will typically be smaller in the future. If the optical system is downsized, failure to meet luminance requirements can lead to problems with regulatory compliance and ensuring forward visibility.
[0006] The matters described above as background technology are provided to facilitate understanding of the background of the present disclosure and should not be considered as an admission that the present disclosure is prior art already known to those skilled in the art. SUMMARY
[0007] This disclosure provides opportunities to improve marketability through advanced lamp design by streamlining the optical system, complying with regulations through adequate illumination, and ensuring peripheral visibility through generous illumination.
[0008] One aspect of the present disclosure provides an optical device for a mobile vehicle, ie, a vehicle, which reduces the overall size of the optical system of the mobile vehicle by implementing a favorable package configuration, ensures sufficient illumination and high luminous efficiency by efficient operation of the light source, and improves the quality of an illumination image projected onto an illumination area.
[0009] According to one embodiment of the present disclosure, an optical device for a mobile vehicle may include a plurality of light sources that emit light. The optical device further includes a first lens, among a plurality of first lenses, that matches one of the plurality of light sources. The first lens has a convex or concave vertical cross-section. The optical device further includes a second lens, among a plurality of second lenses. The second lens matches the first lens and receives the 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 a plurality of third lenses, that receives the light transmitted by the second lens and has a transmissive part that matches the second lens. A plurality of cells are arranged on an exit surface of the transmissive part.
[0010] An illumination area can be defined for each suitable light source, the first lens and the second lens.
[0011] The first lens may have a square horizontal cross-section.
[0012] The second lens may have a convex or concave horizontal cross-section and a quadrangular vertical cross-section.
[0013] The distance between the first lens and the second lens that match each other and the distance between the second lens and the transmissive part of the third lens that matches the second lens may be uniform.
[0014] The distance between the second lens and the light source may increase with decreasing radius of curvature and decrease with increasing radius of curvature, which is due to the convexity or concavity of the horizontal cross-section of the second lens.
[0015] The transmissive part of the third lens may have aspherical entrance surfaces and a uniform radius of curvature.
[0016] The plurality of light sources can be adapted to the plurality of first lenses to form a plurality of light modules. Different illumination areas are defined for each plurality of light modules.
[0017] The plurality of light modules may be arranged transversely. The plurality of second lenses may be arranged transversely to match the respective plurality of light modules. The plurality of third lenses may extend transversely such that each respective light-transmitting portion is spaced transversely to match the plurality of second lenses.
[0018] Each light module of the plurality of light modules may include a converging light module and a dispersing light module. The converging light module may form a beam pattern on the transverse centerline of the illumination area. The dispersing light module may form a dispersed beam pattern on the transverse centerline of the illumination area.
[0019] The first lens of the converging light module may be smaller in the longitudinal direction than the first lens of the scattering light module.
[0020] The plurality of light sources of the condensing light module and the scattering light module may each be arranged in the center of the respective plurality of first lenses such that the light source of the scattering light module is positioned lower than the light source of the scattering light module.
[0021] The exit surface of the first lens of the converging light module may have a smaller radius of curvature than the exit surface of the first lens of the scattering light module.
[0022] The optical device for a mobile vehicle having the above-described structure reduces the overall size of the optical system of the mobile vehicle by implementing a favorable housing 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 surface. BRIEF DESCRIPTION OF THE DRAWING FIGURES Fig. 1 is a view showing an optical device for a mobile vehicle according to an embodiment of the present disclosure. Fig. 2 is a side view of the Fig. 1 illustrated optical device for a mobile vehicle. Fig. 3 is a plan view of the Fig. 1 shows an optical device for a mobile vehicle. Fig. 4 is a cross-sectional view of a third lens according to an embodiment of the present disclosure. Fig. 5 is a view showing an exit surface of a third lens according to an embodiment of the present disclosure. Fig. 6 is a view showing an optical device for a mobile vehicle according to an embodiment of the present disclosure. Fig. 7 is a view for describing an arrangement corresponding to the shape of the second lens in an optical device for a mobile vehicle according to an embodiment of the present disclosure. Fig. 8 is a view for describing an arrangement corresponding to the shape of the second lens in an optical device for a mobile vehicle according to an embodiment of the present disclosure. Fig. 9 is a view showing a beam pattern of an optical device for a mobile vehicle according to an embodiment of the present disclosure. Fig. 10 is a view showing light sources and first lenses according to an embodiment of the present disclosure. Fig. 11 is a side view of light sources and first lenses according to an embodiment of the present disclosure. Fig. 12 is a view showing the beam patterns of a converging light module and a scattering light module according to an embodiment of the present disclosure. DETAILED DESCRIPTION
[0023] The embodiments disclosed herein are described in detail with reference to the accompanying drawings. However, identical or similar components are designated by the same reference numerals regardless of the drawing numbers, and repetitive descriptions of these components are omitted.
[0024] The suffixes “module” and “unit” for the components used in the description are provided only to facilitate the drafting of the description or are used interchangeably, without necessarily indicating any specific meaning or role.
[0025] If it is determined that the specific description of related and previously known technology might obscure the gist of the embodiments disclosed herein, the specific description will be omitted. Furthermore, it should be understood that the accompanying drawing figures are provided only to facilitate understanding of the embodiments disclosed herein and are not intended to limit the disclosed technical ideas. The embodiments illustrated herein are not limited to the accompanying drawing figures and include all modifications, equivalents, or substitutions within the spirit and technical scope of the present disclosure.
[0026] The terms, including ordinal numbers such as first, second, and the like, may be used to describe various components, but the components are not intended to be limited by the terms. The terms may only be used to distinguish one component from another.
[0027] When a component is described as "connected" or "coupled" to another component, the component may be directly connected or coupled to the other component, but other components may be present in between. On the other hand, when a component is described as "directly connected" or "directly coupled" to another component, no other component is present in between.
[0028] When a component, device, element, or the like is described in this disclosure as being useful or performing an operation, function, or the like, the component, device, or element should be considered "configured" herein to serve that purpose or perform that operation or function.
[0029] Expressions in the singular include plural expressions unless the context expressly indicates otherwise.
[0030] In this specification, terms such as "comprising" or "having" are intended to indicate the presence of the implemented features, numbers, steps, manipulations, components, parts, or combinations thereof described in the specification and are not to be understood as excluding the presence or additional capabilities of one or more other features, numbers, steps, manipulations, components, parts, or combinations thereof.
[0031] A controller / control unit may include a communication device that communicates with other control units or sensors to control the functions for which the controller is responsible, a memory that stores an operating system or logical instructions and input and output information, and one or more processors that perform determinations, calculations, decisions, and the like necessary to control the functions for which the controller is responsible.
[0032] An optical device for a mobile vehicle according to an embodiment of the present disclosure will be described with reference to the accompanying drawing figures.
[0033] According to one embodiment of the present disclosure, an optical device for a mobile vehicle includes a plurality of light sources 10 that emit light. The optical device further includes a first lens 20 that matches one of 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 the 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 the light transmitted through the second lens 30. The third lens 40 has a transmissive portion 41 that matches the second lens 30. A plurality of cells 42 are arranged on an exit surface of the transmissive portions 41.
[0034] The present disclosure includes a plurality of light sources 10 (in Fig. 2), first lenses 20, second lenses 30, and third lenses 40. The present disclosure provides advanced lamp design by slimming down the lenses.
[0035] Each of the multiple light sources 10 may comprise LEDs. The light source 10 may be separately turned on and off and operated to produce different beam patterns. The light source 10 may be turned on and off by a control device that sends control signals to the light source 10 when it receives external signals.
[0036] The first lens 20 of the plurality of first lenses matches a specific light source 10, i.e., a light source, a corresponding light source, a first light source, or a first light source unit. The first lens 20 is arranged in front of the corresponding light source 10 to receive light, i.e., a light beam, emitted by the light source 10. The first lens 20 is configured to control the vertical orientation angle and may have a convex or concave vertical cross-section. In other words, the light emitted by the light source 10 passes through the first lens 20 and travels at a vertical orientation angle to impinge on a specific area of the second lens 30.
[0037] The second lens 30 receives the light transmitted through the first lens 20 and aligns with the first lens 20. The second lens 30 is configured to control a horizontal orientation angle and may have a convex or concave horizontal cross-section. In other words, the light transmitted by the first lens 20 passes through the second lens 30 and travels at a horizontal orientation angle to strike the respective transmissive portion 41 of the third lens 40.
[0038] The distribution of the light emitted by the light source 10 is determined by controlling the vertical orientation angle of the first lens 20 and the horizontal orientation angle of the second lens 30. Therefore, the light incident on the transmissive part 41 of the third lens 40 can be projected as collimated light through a plurality of cells 42.
[0039] According to one embodiment of the present disclosure, a beam pattern is formed when the vertical orientation angle and the horizontal orientation 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. Specifically, the positions, sizes, curved surface shapes, and tilt angles of the first lens 20 and the second lens 30 determine the orientation angle, the amount of light overlap, and the light intensity, so that various beam patterns can be realized by optimizing the shapes and arrangement of the first lens 20 and the second lens 30.
[0040] In addition, the third lens has 40, as shown in the Fig. 4 and Fig. 5, an aspherical entrance surface. A plurality of cells 42 are arranged on the exit surface such that the light can be aligned as it passes through the aspherical lens and then projected as collimated light by the plurality of cells 42. The plurality of cells 42 can be arranged longitudinally or transversely on the exit surface of the third lens 40 such that the light can be projected forward as collimated light.
[0041] The transmissive part 41 of the third lens 40 has an aspherical entrance surface, however, the light can be projected as collimated light or as collimated light by adjusting the radius of curvature, and the design can be based on the desired beam pattern that is ultimately projected.
[0042] The first lens 20, the second lens 30, and the third lens 40 may each comprise a plurality of lenses. In particular, a plurality of lenses may be integrated into each of the first, second, and third lenses, or the lenses may be integrated into a single lens.
[0043] As in Fig. 1, a plurality of light sources 10 may be provided for each first lens 20, and an illumination area may be adjusted for each light source 10, the first lens 20, and the second lens 30 to match each other.
[0044] 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 areas are illuminated by the first lens 20 matching the divided light source 10 and the second lens 30 such that a beam pattern is formed.
[0045] In other words, as in Fig. As shown in Figure 1, the first lens 20, the second lens 30, and the transmissive portion 41 of the third lens 40 are laterally arranged to match each other in the front-to-back direction. A plurality of light sources 10 are arranged behind the respective first lenses 20 so that beam patterns can be formed at different positions by the light emitted from the respective light sources 10. The beam patterns can be changed by adjusting the illumination status of the respective light sources 10 depending on different situations.
[0046] On the other hand, the first lens 20 may have a convex vertical cross-section and a quadrangular horizontal cross-section.
[0047] Therefore, the vertical cross sections of the entrance surface and the exit surface of the first lens 20 are convex to adjust the vertical orientation angle of the light emitted by the light source 10. The vertical orientation angle can be adjusted according to the radius of curvature of the entrance surface and the radius of curvature of the exit surface of the first lens 20. The shape of the first lens 20 can determine the area of light incidence on the second lens 30. The vertical orientation angle refers to the angle formed between the light beam emitted by the light source 10 and the light 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.
[0048] In addition, the horizontal cross-section of the first lens 20 is quadrangular, so that the vertical orientation angle of the light emitted by the light source 10 is not adjusted.
[0049] On the other hand, in the second lens 30, the horizontal cross section may be convex or concave and the horizontal cross section may be square.
[0050] Therefore, the horizontal cross sections of the entrance surface and the exit surface of the second lens 30 are convex to adjust the horizontal orientation angle of the light emitted by the light source 10. The horizontal orientation angle can be adjusted according to the radius of curvature of the entrance surface and the radius of curvature of the exit surface of the second lens 30. The shape of the second lens 30 can determine the area of light incidence on the third lens 40. The horizontal orientation angle refers to the angle formed between the light beam emitted by the light source 10 and the light axis on the horizontal line. The shape of the second lens 30 determines the transverse area of light incidence on the third lens 40.
[0051] Furthermore, the vertical cross-section of the second lens 30 is quadrangular in such a way that the vertical orientation angle of the light emitted by the light source 10 is not adjusted.
[0052] As a result, the first lens 20 controls the vertical orientation angle and the second lens 30 controls the horizontal orientation angle so that the light is incident on the respective light-transmitting parts 41 of the third lens 40 as a whole such that sharp beam patterns can be formed when the light passes through the third lens 40.
[0053] On the other hand, as in Fig. 6, the distance between the first lens 20 and the second lens 30, which match each other, and the distance between the second lens 30 and the transmissive part 41 of the third lens 40, which matches the second lens 30, should be uniform.
[0054] In one embodiment, the entrance surface and exit surface of the first lens 20 may have a uniform radius of curvature. The entrance surface and exit surface of the second lens 30 may have a uniform radius of curvature, and the transmissive portions 41 of the third lens 40 may have a uniform aspherical curvature. Accordingly, the first lens 20 and the second lens 30, which match each other, are arranged at a uniform distance, and the second lens 30 and the transmissive portion 41 of the third lens 40, which matches the second lens 30, are arranged at a uniform distance such that a uniform beam pattern can be formed when the light emitted from the respective light sources 10 passes through the lenses and forms a beam pattern.
[0055] Moreover, even if the third lens 40 extends diagonally, the first lens 20 and the second lens 30 are arranged diagonally according to the shape of the third lens 40 such that the distance between the respective lenses is uniform, so that the light emitted from the respective plurality of light sources 10 can form a uniform beam pattern.
[0056] On the other hand, the distance between the second lens and the respective light source unit 10 increases with decreasing radius of curvature and decreases with increasing radius of curvature, which is due to the convexity or concavity of the horizontal cross section of the second lens 30.
[0057] The second lens 30 is to be arranged between the first lens 20 and the third lens 40 such that the light transmitted by the first lens 20 falls on the same surface of the third lens 40. The position of the second lens 30 may change depending on the shape of the second lens 30.
[0058] For example, as in Fig. As shown in Figure 7, the horizontal cross-section of the second lens 30 is convex, and the radius of curvature decreases due to the convexity of the second lens 30, thus increasing the angle of refraction of the light passing through and incident on the first lens 20. As a result, the second lens 30 can be arranged close to the third lens 40 by increasing the distance from the first light source 10.
[0059] If the radius of curvature of the horizontal cross section increases due to the convexity of the second lens 30, the angle of refraction of the light passing through and incident on the first lens 20 decreases, as shown in Fig. 8. As a result, the second lens 30 can be positioned away from the third lens 40 by reducing the distance to the first light source 10.
[0060] According to an embodiment of the present disclosure, the position of the second lens 30 can be adjusted according to the radius of curvature of the entrance surface and the exit surface of the second lens 30 so as to ensure the clearance when installing the first lens 20, the second lens 30 and the third lens 40.
[0061] On the other hand, the transmissive part 41 of the third lens 40, as shown in the Fig. 4 and Fig. 5, have an aspherical entrance surface, and the radius of curvature of the transmissive part 41 may be uniform.
[0062] The third lens 40 has an aspherical entrance surface such 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 the exit surface.
[0063] Furthermore, the radius of curvature of the aspherical surface of the transmissive portion 41 of the third lens 40 is uniform, allowing the third lens 40 to be positioned at a uniform distance from the second lens 30 corresponding to the transmissive portion 41. Furthermore, when the light transmitted through the second lens 30 and incident on the transmissive portion 41 is incident on the same area of the transmissive portion 41, a uniform beam pattern can be projected through the transmissive portion 41.
[0064] On the other hand, according to an embodiment of the present disclosure, a plurality of light sources 10 may be adapted to the plurality of first lenses 20 to form light modules, and different illumination areas may be set for the respective light modules.
[0065] As in Fig. As shown in Figure 1, a portion of the plurality of light sources 10 and the first lenses 20 that match the portion of the light sources each form a plurality of light modules. The respective plurality of light modules are arranged laterally. Furthermore, the plurality of second lenses 30 are matched to the respective plurality of light modules, and the light-transmitting portions 41 of the third lens 40 are matched to the plurality of second lenses 30.
[0066] In particular, the respective plurality of light modules comprises a plurality of light sources 10, and each light source 10 is separately turned on and off such that different beam patterns can be formed depending on the illumination status of each light source 10. For example, a high beam can be formed when all light sources 10 in the respective light modules are turned on. Diversifying the light patterns by separately turning the respective light sources 10 on and off depending on the surrounding road environment, vehicle speed, and the presence or absence of obstacles enables the implementation of various lighting functions, such as communication functions, the formation of low and high beam patterns, and the like.
[0067] In this way, different illumination areas can be set for the respective plurality of light modules and the radiation patterns can be diversified by selectively switching the respective plurality of light sources 10 on and off.
[0068] In particular, the plurality of light modules may be arranged transversely, the second lenses 30 may be arranged transversely to match the respective light modules, and the third lens 40 may extend transversely such that the transmissive portions 41 are spaced transversely to match the second lenses 30.
[0069] The third lens 40 assumes a transversely extending shape corresponding to the transverse arrangement of the plurality of light modules and the second lens 30 such that a tapered and transversely extending luminaire construction can be realized.
[0070] As a result, the light emitted by the respective light modules can form individual beam patterns, and some of the beam patterns formed by the respective light modules can overlap, while others can be projected onto the illumination surface at a distance from each other.
[0071] The plurality of light modules 100 may include a converging light module 110 and a scattering light module 120.
[0072] The converging light module 110 may form a beam pattern in which the light converges on the transverse center line in the illumination area, while the scattering light module 120 may form a beam pattern in which the light is scattered from the transverse center line in the illumination area.
[0073] In other words, the converging light module 110 forms a beam pattern on the transverse center line in the illumination area such that the beam pattern is formed in a hot zone region of the illumination area.
[0074] In addition, the scattering light module 120 forms a beam pattern that scatters longitudinally from the transverse centerline in the illumination area, in contrast to the beam pattern formed by the converging light module 110.
[0075] As a result, the beam pattern formed by the converging light module 110 projects light onto the hot zone in the illumination area in such a way that sufficient illumination can be ensured. The scattering light module 120 forms a beam pattern across the entire illumination area in such a way that visibility is ensured.
[0076] In other words, as in Fig. 9, the beam pattern formed by the converging light module 110 is projected onto a hot zone on the transverse centerline in the illumination area. The beam pattern formed by the scattering light module 120 is projected onto the entire illumination area in such a way that sufficient illumination can be ensured and the visibility of the beam pattern projected onto the illumination area can be ensured.
[0077] For this purpose, as described in the Fig. 10 and Fig. 11, the first lens 20a of the converging light module 110 may be smaller in the longitudinal direction than the first lens 20b of the scattering light module 120.
[0078] Furthermore, the light sources 10a and 10b are arranged in the center of the first lenses 20a and 20b in the converging light module 110 and the scattering light module 120, respectively, such that the light source 10a of the converging light module 110 can be positioned lower than the light source 10b of the scattering light module 120.
[0079] The condensing light module 110 projects light onto a hot zone of the illumination area, and the light emitted from the light source 10a of the condensing light module 110 can pass through the first lens 20a to impinge on the lower portion of the second lens 30. Accordingly, the condensing light module 110 is positioned to coincide with the lower portion of the second lens 30, and the first lens 20a of the condensing light module 110 is smaller than the first lens 20b of the diffusing light module 120 such that the light transmitted through the first lens 20a can impinge on the lower portion of the second lens 30.Furthermore, the light source 10a of the converging light module 110 is arranged at the center of the first lens 20a such that when the light emitted from the light source 10a of the converging light module 110 passes through the first lens 20a, the vertical orientation angle of the first lens 20a is controlled and the light can be incident on the lower part of the second lens 30. Accordingly, when the light emitted from the converging light module 110 passes through the second lens 30, the horizontal orientation angle is controlled and the light can be incident on the lower part of the third lens 40 such that a beam pattern can be formed on the transverse center line, which serves as a hot zone in the illumination area.
[0080] The diffuse light module 120 projects light onto the entire illumination area. When the light emitted by 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. Accordingly, the diffuse light module 120 is positioned to fit the entire second lens 30 and is larger than the converging light module 110, allowing the light transmitted through the first lens 20b to be incident on the entire second lens 30.
[0081] Furthermore, the light source 10b of the scattering light module 120 is arranged at the center of the first lens 20b such that when the light emitted from the light source 10b of the scattering light module 120 passes through the first lens 20b, the vertical orientation angle of the first lens 20b is controlled and the light can be incident on the entire second lens 30. Accordingly, when the light emitted from the scattering light module 120 passes through the second lens 30, the horizontal orientation angle is controlled and the light is incident on the entire third lens 40 such that a beam pattern can be formed that scatters in the up-and-down directions from the transverse center line of the illumination area.
[0082] In addition, the exit surface of the first lens 20a of the converging light module 110 has a smaller radius of curvature than the exit surface of the first lens 20b of the scattering light module 120, so that the degree of refraction of the light passing through the first lens 20a of the converging light module 110 can increase to converge the light in the hot zone of the illumination area.
[0083] According to an embodiment of the present disclosure, a beam pattern can be formed in the illumination area by each light module.
[0084] Fig. For example, Figure 1 shows that the converging light module 110 and the scattering light module 120 are arranged laterally. Assuming that each light module is equipped with four light sources 10, the converging light module 110 and the scattering light module 120 form partially overlapping beam patterns in or around the hot zone for each illumination area.
[0085] Accordingly, as in Fig. 12, the condensing light module 110 and the dispersing light module 120 form their own beam patterns for the illumination area, and the beam patterns can be projected onto the hot zone area and the entire area by combining the beam patterns of the respective plurality of light modules, as shown in Fig. 9 shown.
[0086] As a result, according to an embodiment of the present disclosure, sufficient illumination is ensured for the hot zone area, which is the central part of the illumination area, and beam patterns can be implemented throughout the illumination area such that uniform light can be projected onto the target illumination area.
[0087] The optical device for a mobile vehicle having the structure described here reduces the overall size of the optical system of the mobile vehicle by implementing a favorable housing 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 surface.
[0088] Specific embodiments of the present disclosure have been described in detail. However, it should be obvious to those skilled in the art that various modifications and changes are possible within the scope of the technical spirit of the present disclosure, and it is understood that such modifications and changes are within the scope of the appended claims.
Claims
[1] Optical device for a mobile vehicle, comprising: a plurality of light sources arranged to emit light; a first lens of a plurality of first lenses, which matches one of the plurality of light sources and has a convex or concave vertical cross-section; a second lens of a plurality of second lenses, the second lens being adapted to the first lens, receiving the light transmitted through the first lens, and having a convex or concave horizontal cross-section; and a third lens of a plurality of third lenses, the third lens receiving light transmitted through the second lens and having a transmissive portion conforming to the second lens, a plurality of cells being arranged on an exit surface of the transmissive portion. [2] The apparatus of claim 1, wherein an illumination area is defined for each matching light source, the first lens, and the second lens. [3] The device of claim 1, wherein the first lens has a quadrangular horizontal cross-section. [4] The device of claim 1, wherein the second lens has a convex or concave horizontal cross-section and a quadrangular vertical cross-section. [5] The device according to claim 1, wherein the distance between the first lens and the second lens, which match each other, and the distance between the second lens and the transmissive part of the third lens, which matches the second lens, are uniform. [6] The device according to claim 1, wherein 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 with decreasing radius of curvature and decreases with increasing radius of curvature. [7] The device of claim 1, wherein the transmissive portion of the third lens has aspherical entrance surfaces and a uniform radius of curvature. [8] Device according to claim 1, wherein the plurality of light sources are adapted to the plurality of first lenses to form a plurality of light modules, and wherein different lighting areas are set for each plurality of light modules. [9] Device according to claim 8, wherein the multitude of light modules are arranged transversely, the plurality of second lenses are arranged transversely to match the respective plurality of light modules, and the plurality of third lenses extend transversely such that each transmissive portion is respectively transversely spaced to correspond with the plurality of second lenses. [10] The apparatus of claim 8, wherein each of the plurality of light modules comprises a converging light module and a scattering light module, and wherein: the condensing light module forms a beam pattern on a transverse center line of an illumination area, and the scattering light module forms a scattered beam pattern emanating from the transverse center line of the illumination area. [11] The device of claim 10, wherein the first lens of the converging light module is smaller in the longitudinal direction than the first lens of the scattering light module. [12] The device according to claim 11, wherein the plurality of light sources of the converging light module and the scattering light module are each arranged in the center of the respective plurality of first lenses such that the light source of the converging light module is positioned lower than the light source of the scattering light module. [13] The device according to claim 10, wherein the exit surface of the first lens of the converging light module has a smaller radius of curvature than the exit surface of the first lens of the scattering light module.
