Vehicle light
The vehicle light design with spaced lens parts and shielding reduces light loss by optimizing light distribution, enhancing brightness and visibility.
Patent Information
- Application Number
- DE102018216432
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2018-09-26
- Publication Date
- 2026-02-12
- Estimated Expiration
- 2038-09-26
AI Technical Summary
Existing vehicle lights suffer from light loss due to the formation of a light-dark boundary, which limits light utilization efficiency.
A vehicle light design featuring a light source, a first lens part with micro-incidence lenses, a second lens part with micro-emission lenses, and a shielding element between the two lens parts, where the center lines of the second lens part are laterally and/or downwardly spaced from the first lens part, allowing for reduced light blocking and improved light distribution.
The design enhances light utilization efficiency by minimizing the area blocked to form the light-dark boundary, thereby increasing brightness and improving visibility.
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Abstract
Description
[0001] The disclosure relates to a vehicle light and in particular a vehicle light configured to reduce light loss in order to form a light-dark boundary of a light distribution.
[0002] Generally, a vehicle has a light with an illumination function that makes it easy to see objects near the vehicle when driving in low-light conditions (e.g., at night), and a signaling function that informs other vehicles or pedestrians about the vehicle's driving status. For example, headlights, fog lights, etc., are provided for illumination, and turn signals, taillights, brake lights, side marker lights, etc., are provided for signaling.
[0003] Among these, the headlight plays an important role in driving safety by emitting light in the same direction as the vehicle's direction of travel to ensure the driver's forward visibility when driving at night or in the dark.
[0004] For example, in a tunnel or similar. The headlight forms a light distribution with a predetermined light-dark boundary to prevent glare, which occurs in the direction of a driver of a vehicle ahead, e.g., an oncoming vehicle, a vehicle driving ahead, etc., and in this case, part of the light emitted by the vehicle towards the driver is blocked to form the light-dark boundary.
[0005] The light blocked to form the light-dark boundary of the light distribution is a cause of light loss, which is why there are limitations to improving light utilization efficiency. Therefore, a method is needed that can improve light utilization efficiency by reducing the light blocked to form the light-dark boundary.
[0006] AT 518905 A1 relates to a projection device (1) for a motor vehicle headlight, wherein the projection device (1) is configured to project light from at least one light source (2) associated with the projection device (1) in an area in front of a motor vehicle in the form of at least one light distribution, wherein the projection device (1) comprises: an entrance optic (3) having a number of micro-entrance optics (3a) which are preferably arranged in an array, an exit optic (4) having a number of micro-exit optics (4a) which are preferably arranged in an array, wherein each micro-entrance optic (3a) is associated with exactly one micro-exit optic (4a), wherein the micro-entrance optics (3a) are configured and / or the micro-entrance optics (3a) and the micro-exit optics (4a) are arranged relative to each other in such a manner as tothat essentially all the light exiting a micro-entry optic (3a) enters only the associated micro-exit optic (4a), and wherein the light pre-shaped by the micro-entry optics (3a) is imaged by the micro-exit optics (4a) into an area in front of the motor vehicle as at least one light distribution.
[0007] AT 517885 A1 relates to a micro-projection light module (1) for a motor vehicle headlight, comprising at least one light source (2) and at least one projection device (3) which projects the light emitted from the at least one light source (2) into an area in front of the motor vehicle in the form of at least one light distribution, wherein the projection device (3) comprises an inlet optic (30) consisting of one, two or more micro-inlet optics (31) which are preferably arranged in an array, and an outlet optic (40) consisting of one, two or more micro-outlet optics (41) which are preferably arranged in an array, wherein each micro-inlet optic (31) is assigned exactly one micro-outlet optic (41), wherein the micro-inlet optics (31) are configured and / or the micro-inlet optics (31) and the micro-outlet optics (41) are arranged relative to each other in such a manner as tothat essentially all the light exiting a micro-entry optic (31) enters precisely only the associated micro-exit optic (41), and wherein the light pre-shaped by the micro-entry optics (31) is imaged by the micro-exit optics (41) into an area in front of the motor vehicle as at least one light distribution (LV1 - LV5; GLV), wherein a first aperture device (50) is arranged between the entry optic (30) and the exit optic (40), and wherein at least a second aperture device (60, 70) is arranged between the entry optic (30) and the exit optic (40).
[0008] CH 296715 A relates to a headlight for vehicles which combines uniform illumination of the road surface with the avoidance of scattered light and the resulting risk of glare.
[0009] EP 3489574 A1 relates to an adaptive light module (100) for installation in the headlight assembly of a vehicle, wherein the light module (100) can be installed as a single unit or as one of several units. The light module (100), which uses an LED array (101), collimation optics (103), illumination (105) and projection microlens arrays (MLAs) (109), is configured such that the illumination intensity distribution can be adjusted by selectively activating / deactivating subsets of the LED array (101).
[0010] US 2017 / 0261881 A1 relates to a unit comprising a first lens assembly with a plurality of first lens elements. The first lens assembly satisfies D ≤ 0.25*P1, where P1 is a distance in a first direction between the optical axes of adjacent first lens elements and D is a displacement magnitude that is the absolute value of a difference between a first length WE1 from a central position of the first lens assembly to an end position of the first lens assembly in the first direction at a first temperature and a second length WE2 from the central position of the first lens assembly to the end position of the first lens assembly at a second temperature that is 30°C higher than the first temperature.
[0011] The disclosure relates to the provision of a vehicle light configured to reduce light loss due to obstruction in the formation of a light-dark boundary in a light distribution. It should be noted that the tasks of the disclosure are not limited to those mentioned above, and further tasks of the disclosure will become clear to the person skilled in the art from the following descriptions.
[0012] A vehicle light according to an exemplary embodiment of the disclosure can comprise: a light source part with a light source; a first lens part with several micro-incidence lenses onto which light generated by the light source part is incident; a second lens part with several micro-emission lenses, each corresponding to one of the several micro-incidence lenses;and a shielding element arranged between the first lens element and the second lens element, the shielding element having multiple shields configured to block a portion of the light incident from the multiple microincidence lenses onto the multiple microemission lenses, wherein a center line connecting the centers of an incidence surface and an emission surface of the second lens element is arranged to be spaced laterally and / or downwards from a center line connecting the centers of an incidence surface and an emission surface of the first lens element.
[0013] A vehicle lamp according to a further exemplary embodiment of the present disclosure can comprise: a light source part with a light source; a first lens part with several micro-incidence lenses onto which light generated by the light source part is incident; a second lens part with several micro-emission lenses, each corresponding to one of the several micro-incidence lenses; and a shielding part arranged between the first lens part and the second lens part, the shielding part having several shields configured to block a portion of the light incident from the several micro-incidence lenses onto the several micro-emission lenses. In particular, a light axis of the light source can be arranged such that it is spaced laterally and / or downwards from a center line connecting the centers of an incidence surface and an emission surface of the first lens part.
[0014] Further details of the revelation can be found in the detailed description and accompanying drawings, which are described below.
[0015] These and other aspects and features of the disclosure become clearer from the more detailed description of its exemplary embodiments with reference to the accompanying drawings. These show: Fig. 1 a perspective view of a vehicle light according to an exemplary embodiment of the disclosure; Fig. 2 a side view of the vehicle light according to the exemplary embodiment of the disclosure; Fig. 3 a top view of the vehicle light according to the exemplary embodiment of the disclosure; Fig. 4 and Fig. 5 Perspective views of a first lens part and a second lens part according to the exemplary embodiment of the disclosure; Fig. 6 and Fig. 7 schematic views of a microemission lens arranged such that it is spaced apart from a central axis of a microincidence lens according to the exemplary embodiment of the disclosure; Fig. 8 a schematic view of a position of a shield according to the exemplary embodiment of the disclosure; Fig. 9A and Fig. 9B Schematic views of a light distribution according to the exemplary embodiment of the disclosure; Fig. 10 a schematic view of the first lens part and the second lens part according to the exemplary embodiment of the disclosure; Fig. 11 a schematic view of the microincidence lens according to a position of the first lens part according to the exemplary embodiment of the disclosure; Fig. 12 a schematic view of the microemission lens according to a position of the second lens part according to the exemplary embodiment of the disclosure; Fig. 13 and Fig. 14 schematic views of a position of the microemission lens which is arranged on a central section of the second lens part according to the exemplary embodiment of the disclosure; Fig. 15 and Fig. 16 schematic views of a position of the microemission lens arranged at a top end of the second lens part according to the exemplary embodiment of the disclosure; Fig. 17 and Fig. 18 schematic views of a position of the microemission lens arranged at a bottom end of the second lens part according to the exemplary embodiment of the disclosure; Fig. 19 and Fig. 20 schematic views of a position of the microemission lens, which is arranged at a left side end of the second lens part according to the exemplary embodiment of the disclosure; Fig. 21 and Fig. 22 schematic views of a position of the microemission lens, which is arranged at a right side end of the second lens part according to the exemplary embodiment of the disclosure; Fig. 23 a schematic view of a shielding part according to the exemplary embodiment of the disclosure; Fig. 24 a side view of a vehicle light according to a further exemplary embodiment of the disclosure; Fig. 25 a top view of the vehicle light according to a further exemplary embodiment of the disclosure; Fig. 26 and Fig. 27 schematic views of an image of light emitted by a first lens part and a second lens part when a light axis of a light source part is arranged according to a further exemplary embodiment of the disclosure such that it is spaced away from the light source part in the side direction; Fig. 28 and Fig. 29 schematic views of an image of the light emitted by the first lens part and second lens part when the light axis of the light source part is arranged according to a further exemplary embodiment of the disclosure such that it is spaced away from the light source part in the downward direction; Fig. 30 a schematic view of a light path of the first lens part and the second lens part, respectively, when the light axis of the light source part is arranged according to a further exemplary embodiment of the disclosure such that it is spaced laterally from the light source part; and Fig. 31 a schematic view of a light distribution based on the light path in Fig. 30.
[0016] The advantages and features of the disclosure, as well as a method for its implementation, will become clear with reference to embodiments described in more detail below with the accompanying drawings. However, the disclosure is not limited to the embodiments described below, but may be implemented in various different forms. The embodiments are provided merely to ensure the disclosure is complete and to enable those skilled in the art to gain a full understanding of the scope of protection of the disclosure. The disclosure is defined solely by the scope of protection of the claims. In the description, identical reference numerals consistently denote identical or similar components.
[0017] Therefore, in some embodiments, known methods, known structures and known techniques are not specifically described in order to avoid an ambiguous interpretation of the disclosure.
[0018] Furthermore, the terms used here serve only to describe specific embodiments and are not intended to limit the disclosure. Singular forms are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "includes" and / or "exhibit" do not preclude the presence or addition of one or more elements, steps, or operational procedures that differ from the specifically described elements, steps, or operational procedures. Moreover, the term "and / or" includes combinations of any or all of the aforementioned circumstances.
[0019] Furthermore, embodiments disclosed in the disclosure are described with reference to cross-sectional and / or schematic views, which are ideal exemplary views of the disclosure. Thus, the shapes of the exemplary views may vary depending on the manufacturing technology, permissible defects, and / or the like. Consequently, the embodiments of the disclosure are not limited to the specific shapes shown here, but also include variations of shapes resulting from a manufacturing process. Furthermore, in each of the views shown in the disclosure, any element may be enlarged or reduced for the sake of clarity. In the description, identical reference numerals consistently denote identical or similar components.
[0020] The disclosure is described below with reference to the drawings illustrating exemplary embodiments of a vehicle light.
[0021] Fig. Figure 1 is a perspective view of a vehicle light according to an exemplary embodiment of the disclosure, Fig. Figure 2 is a side view of the vehicle light according to the exemplary embodiment of the disclosure, and Fig. Figure 3 is a top view of the vehicle light according to the exemplary embodiment of the disclosure. With reference to Fig. 1, Fig. 2 to Fig. 3. A vehicle light 1 can have a light source part 100, a first lens part 200, a shielding part 300 and a second lens part 400.
[0022] The vehicle light 1 can be used as a headlight to ensure a driver's forward visibility when a vehicle is driven at night or in the dark, e.g., in a tunnel or similar location. However, the invention is not limited to this use, and the vehicle light 1 can also be used as any of the various lights installed in a vehicle, e.g., as a rear light, brake light, fog light, reversing light, direction indicator, daytime running light, etc. Furthermore, in the exemplary embodiment of the disclosure, the vehicle light 1 can form a low-beam distribution with a predetermined cut-off line to prevent glare in the direction of a driver of a vehicle ahead, e.g., a vehicle traveling ahead, an oncoming vehicle, etc.
[0023] The light source part 100 can comprise a light source 110 and a light guide part 120. In the exemplary embodiment of the disclosure, a light-emitting semiconductor element, e.g., a light-emitting diode (LED) or the like, can be used as an example for the light source 110, but the disclosure is not limited thereto, and various types of light sources, e.g., an incandescent bulb, etc., can be used as the light source 110 in addition to the light-emitting semiconductor element. The light guide part 120 can have a center that is arranged on a light axis Ax of the light source 110 and serves to set a light path so that light generated by the light source 110 can travel parallel to the light axis Ax of the light source 110 in order to be guided to the first lens part 200.
[0024] Furthermore, the light guide part 120 can serve to reduce light loss by guiding the light generated by the light source 110 so that the light can move close to the first lens part, and can also serve to guide all the light so that it falls uniformly on the first lens part 200 by adjusting the light path so that the light falling on the first lens part 200 is essentially parallel to the light axis Ax of the light source 110.
[0025] In the exemplary embodiment of the disclosure, the light guide part 120 can have a collimator lens configured to convert light generated by the light source 110 into parallel light parallel to the light axis Ax of the light source 110 within a predetermined light radiation range, in order to direct the light generated by the light source 110 onto the first lens part 200 within the predetermined light radiation range. In particular, light passing through a central section of the light guide part 120 can move unimpeded to the first lens part 200, and light passing through the outer surface of the central section (e.g., a circumferential section) of the light guide part 120 can be deflected or reflected by the light guide part 120 so that it moves to the first lens part 200.
[0026] The first lens part 200 can have several micro-incidence lenses 210, and the several micro-incidence lenses 210 can be arranged in a region where the light generated by the light source part 100 is incident. In particular, incident surfaces of the several micro-incidence lenses 210 can form an incident surface of the first lens part 200, and emissive surfaces of the several micro-incidence lenses 210 can form an emissive surface of the first lens part 200. In the exemplary embodiment of the disclosure, a center line C1, which connects the centers of the incident surface and the emissive surface in the first lens part 200, can be arranged to coincide with the light axis Ax of the light source 110.
[0027] The shielding part 300 can be arranged between the first lens part 200 and the second lens part 400 and can have several shields 310 configured to block some of the light passing through the multiple micro-incidence lenses 210 so that the vehicle light 1 can form the light-dark boundary of the light distribution, and the multiple shields 310 can have the same shape or different shapes.
[0028] The second lens part 400 can have several microemission lenses 410, each corresponding to one of the several microincidence lenses 210, and the several microemission lenses 410 can serve to emit light that passes through the several shields 310 so that a light distribution based on the use of the vehicle lamp 1 of the disclosure can be formed in front of the vehicle. As with the first lens part 200 described above, incidence surfaces of the several microemission lenses 410 can form an incidence surface of the second lens part 400, and emission surfaces of the several microemission lenses 410 can form an emission surface of the second lens part 400 within the second lens part 400.
[0029] According to Fig. 2 and Fig. 3. A center line C2, connecting the centers of the incidence surface and the emission surface of the second lens part 400, can be arranged such that it is spaced apart from the center line C1 of the first lens part 200 in at least one direction from the lateral direction and downward direction in the vehicle lamp 1 described above in the disclosure.
[0030] Since vehicle light 1 can be used as a headlight, it is possible to Fig. 2 and Fig. 3. A z-axis can be understood to indicate a front or forward direction of the vehicle, an x-axis can be understood to indicate a side direction (lateral direction) of the vehicle, and a y-axis can be understood to indicate a vertical direction of the vehicle.
[0031] A case in which the center line C2 of the second lens part 400 is arranged such that it is spaced away from the center line C1 of the first lens part 200 in at least one direction from the lateral and downward directions can be understood as a case in which the multiple microemission lenses 410 are arranged in respective correspondence to each of the multiple microincidence lenses 210 such that they are spaced away from a previous position in at least one direction from the lateral and downward directions compared to a case in which the center line C2 of the second lens part 400 coincides with the center line C1 of the first lens part 200.
[0032] Although examples of the multiple microincidence lenses 210 and the multiple microemission lenses 410 are described as having a one-to-one correspondence as aspheric lenses in the exemplary embodiment of the disclosure, they are not limited thereto, and the multiple microincidence lenses 210 and the multiple microemission lenses 410 may have a one-to-one, one-to-one, multiple-to-one or multiple-to-multiple correspondence based on their sizes and shapes.
[0033] For example, according to Fig. 4 the multiple micro-incidence lenses 210 are semi-cylindrical lenses configured to extend in one direction, and in this case at least two of the multiple micro-emission lenses 410 can correspond to one of the multiple micro-incidence lenses 210.
[0034] Furthermore, according to Fig. 5 the multiple microemission lenses 410 are semi-cylindrical lenses configured to extend in one direction, and in this case at least two of the multiple microincidence lenses 210 can correspond to one of the multiple microemission lenses 410.
[0035] A case in which the multiple microincidence lenses 210 are the semi-cylindrical lenses, and a case in which the multiple microemission lenses 410 are the semi-cylindrical lenses, were previously described in Fig. 4 and Fig. 5 are described separately, but they are not limited to this, and both the multiple microincidence lenses 210 and the multiple microemission lenses 410 can be the semi-cylindrical lenses.
[0036] Furthermore, examples of the multiple microincidence lenses 210 and the multiple microemission lenses 410 are described as the semi-cylindrical lenses configured to point in one direction as previously described. Fig. 4 and Fig. 5 extend, but they are not limited to this, and the multiple microincidence lenses 210 as well as the multiple microemission lenses 410 can have different sizes and shapes based on the light distribution formed in the vehicle lamp 1 of the disclosure.
[0037] Below, the multiple microincidence lenses 210 and the multiple microemission lenses 410 have a one-to-one correspondence as aspheric lenses, and an example of each of a microincidence lens, a shield and a microemission lens corresponding to each other among the multiple microincidence lenses 210, the multiple shields 310 and the multiple microemission lenses 410 is described in the exemplary embodiment of the disclosure, and the description may similarly apply to other microincidence lenses, shields and microemission lenses.
[0038] If, as previously described, the center line C2 of the second lens part 400 is arranged such that it is spaced from the center line C1 of the first lens part in at least one direction from the lateral and downward directions in the vehicle light 1 of the disclosure, a central axis Ax2 of the microemission lens 410 can be arranged such that it is offset from its previous position by a predetermined interval (e.g. a vertical offset) d with respect to a central axis Ax1 of the microincidence lens 210 according to Fig. 6 is spaced downwards, and the central axis Ax2 of the microemission lens 410 can be arranged such that it is offset from its previous position by a predetermined interval (e.g. a horizontal offset or a lateral offset) w with respect to the central axis Ax1 of the microincidence lens 210 according to Fig. 7 is spaced apart in the side direction.
[0039] In this case, the central axis Ax1 of the microincidence lens 210 can denote an axis that connects the incidence surface and the emission surface of the microincidence lens 210, and the central axis Ax2 of the microemission lens 410 can denote an axis that connects the incidence surface and the emission surface of the microemission lens 410.
[0040] In the exemplary embodiment of the disclosure, the central axis Ax2 of the microemission lens 410 can be arranged such that it is spaced to the right compared to its previous position to correspond to the case of left-hand drive (LHD), but the disclosure is not limited thereto, and the central axis Ax2 of the microemission lens 410 can be arranged such that it is spaced to the left compared to its previous position to correspond to the case of right-hand drive (RHD).
[0041] The microemission lens 410 is further arranged such that it is positioned in the lateral and downward directions relative to its previous position by the predetermined intervals d and w respectively, based on a position of the microincidence lens 210 according to the previously described Fig. 6 and Fig. 7, the shielding 310 can also be arranged so that, compared to its previous position in the lateral direction and / or downward direction, it is positioned like the microemission lens 410 according to Fig. 8 spaces apart.
[0042] In other words, since it may be necessary for an upper end of the shield 310 to be arranged on or near the central axis Ax2 of the microemission lens 410 in order to form the light-dark boundary of the light distribution, if the microemission lens 410 is spaced laterally and / or downwards, the shield 310 can also be displaced laterally and / or downwards like the microemission lens 410, so that the upper end of the shield 310 can be arranged on or near the central axis Ax2 of the microemission lens 410 even when the microemission lens 410 is arranged in such a way that it is spaced laterally and / or downwards.
[0043] As previously described, the central axis Ax2 of the microemission lens 410 can be positioned such that it is spaced laterally and / or downwards, and the shield 310 can also be shifted laterally and / or downwards with respect to the central axis Ax1 of the microincidence lens 210. This is intended to increase the brightness of the light distribution by reducing the amount of light that is blocked to form the light-dark boundary of the light distribution. The brightness can also be increased by allowing high-intensity light near the central axis Ax1 of the microincidence lens 210 to be emitted through the microemission lens 410 without being blocked by the shield 310.
[0044] In other words, if the central axis Ax1 of the microincidence lens 210 and the central axis Ax2 of the microemission lens 410 coincide, then according to Fig. 9A because a center S of the light distribution is arranged at a vanishing point where a line HH and a line VV intersect, an area B11, which is blocked by the shield 310 and is lost to form a light-dark boundary CL, is approximately half the size of the entire light distribution area. Conversely, in the exemplary embodiment of the disclosure, the central axis Ax2 of the microemission lens 410 can be arranged such that it is separated from the central axis Ax1 of the microincidence lens 210 in the lateral and downward directions according to Fig. 9B is spaced, the center S of the light distribution can be positioned such that it is spaced laterally and downwards from the vanishing point where line HH and line VV intersect, and the light loss can be reduced because the area B12, which is blocked by the shield 310 to form the light-dark boundary CL, is smaller compared to Fig. 9A may be reduced in size.
[0045] Furthermore, since the shield 310 can be displaced in the lateral and / or downward direction so that it is arranged like the microemission lens 410, it is possible to prevent the blockage of the light passing through the central axis Ax1 of the microincidence lens 210, which has a high light intensity, and since consequently an area of high illuminance formed in the center S of the light distribution cannot be blocked by the shield 310 and can be used to form the light distribution, the brightness of the light distribution can be increased and the visibility can be improved.
[0046] In the exemplary embodiment of the disclosure, a predetermined interval by which the central axis Ax2 of the microemission lens 410 is spaced downwards can be called the first interval d, and a predetermined interval by which the central axis Ax2 of the microemission lens 410 is spaced laterally can be called the second interval w.
[0047] An example in which the microemission lens 410 is arranged to be spaced apart in the lateral direction and / or downward direction has been described in the exemplary embodiment of the disclosure, but this is merely an example for better understanding of the disclosure, and the microemission lens 410 can be arranged to be spaced apart in the lateral direction and / or downward direction along the light distribution based on the vehicle lamp 1 of the present disclosure, without being limited to the above example.
[0048] In the exemplary embodiment described above, the first lens part 200 and the second lens part 400 can each be square overall, but the geometries of the lenses are not limited thereto, and the first lens part 200 and the second lens part 400 can each be hexagonal according to Fig. The number of microincidence lenses and microemission lenses belonging to the first lens part 200 and the second lens part 400, respectively, can be increased. Since, in this case, the light emitted from the first lens part 200 and the second lens part 400 in both the vertical and lateral directions can be used, the light utilization efficiency can be improved. The shape of the first lens part 200 and the second lens part 400 of the disclosure is not limited to the previously described quadrilateral or hexagonal shape and can have various shapes that provide an optimal light distribution and improve the light utilization efficiency.
[0049] Furthermore, as previously described, the light generated by the light source 110 can be incident on the first lens part 200 parallel to the light axis Ax of the light source 110 through the light guide part 120, whereby in this case the light incident on each of the multiple microincidence lenses 210 can be incident on each of the microemission lenses 410 via a focal surface. The focal surface can be a virtual surface that has a rear focus of each of the multiple microemission lenses 410, which is arranged between the microincidence lenses 210 and the multiple microemission lenses 410.
[0050] In this case, the light incident on each of the multiple microincidence lenses 210 can incident on the multiple microemission lenses 410, passing through and corresponding to at least one focal point belonging to the focal surface based on one type of lens. For example, if the multiple microincidence lenses 210 and the multiple microemission lenses 410 have aspherical lenses of the same diameter, the multiple microincidence lenses 210 and the multiple microemission lenses 410 can correspond one-to-one with each other, in which case the light incident on each of the multiple microincidence lenses 210 can pass through a rear focal point of each of the multiple microemission lenses 410.
[0051] Furthermore, if the multiple microincidence lenses 210 are the semi-cylindrical lenses configured to extend in one direction, then multiple microemission lenses arranged in the same direction as the semi-cylindrical lenses can each correspond to the multiple microincidence lenses 210. In this case, the light incident on each of the multiple microincidence lenses 210 can pass through a rear focal point of each of the multiple microemission lenses arranged in the same direction as the semi-cylindrical lenses.
[0052] Furthermore, it is possible that the light incident from the light source part 100 onto the first lens part 200 does not occur parallel to the light axis Ax of the light source 110 if it is at a great distance from the light axis Ax.
[0053] In particular, the light generated by the light source 110 can form a predetermined emission angle with respect to the light axis Ax. If the light moving at a large angle from the light axis Ax of the light source 110 beneath the light generated by the light source 110 is at a great distance from the light axis Ax of the light source 110, then, because adjusting the light path through the light guide part 120 to make the light path parallel to the light axis Ax is more difficult than with light moving at a small angle from the light axis Ax of the light source 110, the light passing through the light guide part 120 onto the first lens part 200 will not be parallel to the light axis Ax of the light source 110, but rather at a predetermined angle from the light axis Ax of the light source 110.In this case, the light passing through the microincidence lens can move at a predetermined angle from the light axis Ax of the light source 110.
[0054] In other words, if the central axes Ax2 of the several microemission lenses 410 are arranged such that they are spaced at the same interval in the lateral and downward directions, then, although light falls on the microemission lens arranged in a central section of the second lens part 400 parallel to the light axis Ax of the light source 110, light falls on microemission lenses arranged at lateral and vertical ends with respect to the second lens part 400 at a predetermined angle with respect to the light axis Ax of the light source 110, whereby a portion of the light passing through the microincident lens may not fall on it.
[0055] In view of this, in the exemplary embodiment of the disclosure, based on a distance from the central section of the second lens part 400, the multiple microemission lenses 410 can be spaced apart at different intervals in at least one direction from the aforementioned lateral and downward direction in order to reduce light loss caused by the light that does not fall on the microemission lens.
[0056] The following is an exemplary embodiment of the disclosure according to Fig. 11. A micro-incidence lens 210a arranged on a central section of the first lens part 200 may be designated as the first micro-incidence lens, a micro-incidence lens 210b arranged on a top end of the first lens part 200 may be designated as the second micro-incidence lens, a micro-incidence lens 210c arranged on a bottom end of the first lens part 200 may be designated as the third micro-incidence lens, a micro-incidence lens 210d arranged on a left side end of the first lens part 200 may be designated as the fourth micro-incidence lens, and a micro-incidence lens 210e arranged on a right side end of the first lens part 200 may be designated as the fifth micro-incidence lens. Similarly, according to Fig. 12 microemission lenses 410a, 410b, 410c, 410d and 410e, which are arranged at the central section, at a top end, a bottom end, a left side end and a right side end of the second lens part 400, each being referred to as the first to fifth microemission lens.
[0057] According to Fig. 13 and Fig. 14 Light can fall on the first microincidence lens 210a parallel to the central axis Ax1, and in this case light passing through the first microincidence lens 210a can fall on the first microemission lens 410a even if the first microemission lens 410a is arranged such that it is spaced apart in the downward direction by a first interval d and in the lateral direction by a second interval w.
[0058] Since according to Fig. 15 and Fig. 16 When light is incident on the second micro-incidence lens 210b at a predetermined upward angle with respect to the central axis Ax1, the light passing through the second micro-incidence lens 210b can travel further upwards compared to the previously described Fig. 13 move, and in this case the second microemission lens 410b can be spaced downwards by an interval d11, which is smaller than the first interval d, and laterally by the second interval w, so that the light passing through the second microincidence lens 210b can fall onto the second microemission lens 410b.
[0059] Since, in particular, the light passing through the second microincidence lens 210b can point in a relative upward direction, the second microemission lens 410b can be spaced downwards by an interval smaller than the first interval d so that the light passing through the second microincidence lens 210b can be incident on the second microemission lens 410b.
[0060] Since according to Fig. 17 and Fig. 18 When light is incident on the third micro-incidence lens 210c at a predetermined downward angle with respect to the central axis Ax1, the light passing through the third micro-incidence lens 210c can continue in the downward direction compared to the previously described Fig. 13 move, and in this case the third microemission lens 410c can be spaced downwards by an interval d12 that is larger than the first interval d, and laterally by the second interval w, so that the light passing through the third microincence lens 210c can fall on the third microemission lens 410c.
[0061] Since, in particular, the light passing through the third microincidence lens 210c can point in a relative downward direction, the third microemission lens 410c can be spaced downwards by an interval larger than the first interval d, so that the light passing through the third microincidence lens 210c can be incident on the third microemission lens 410c.
[0062] Since according to Fig. 19 and Fig. 20 When light is incident on the fourth micro-incidence lens 210d at a predetermined angle in the left direction with respect to the central axis Ax1, the light passing through the fourth micro-incidence lens 210d can travel further in the left direction compared to the previously described Fig. 14 move, and in this case the fourth microemission lens 410d can be spaced downwards by the first interval d and laterally by an interval w11 that is smaller than the second interval w, so that the light passing through the fourth microincidence lens 210d can fall on the fourth microemission lens 410d.
[0063] Since, in particular, the light passing through the fourth microincidence lens 210d can point in a relative left direction, the fourth microemission lens 410d can be spaced laterally by an interval smaller than the second interval w so that the light passing through the fourth microincidence lens 210d can fall onto the fourth microemission lens 410d.
[0064] Since according to Fig. 21 and Fig. 22 When light is incident on the fifth micro-incidence lens 210e at a predetermined angle in the right direction with respect to the central axis Ax1, the light passing through the fifth micro-incidence lens 210e can continue in the right direction compared to the previously described Fig. 14 move, and in this case the fifth microemission lens 410e can be spaced downwards by the first interval d and laterally by an interval w12 that is larger than the second interval w, so that the light passing through the fifth microincidence lens 210e can fall on the fifth microemission lens 410e.
[0065] Since, in particular, the light passing through the fifth microincidence lens 210e can point in a relative rightward direction, the fifth microemission lens 410e can be spaced laterally by an interval that can be larger than the second interval w, so that the light passing through the fifth microincidence lens 210e can fall onto the fifth microemission lens 410e.
[0066] Although an example in which the microemission lenses are arranged at the central section of the second lens part 400 as well as at the upper, lower, right, and left side ends with respect to the central section was described in the exemplary embodiment described above, the remaining microemission lenses may also have at least one of the downwardly and / or laterally spaced intervals based on a distance or direction from a center of the second lens part 400 as described above. Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17, Fig. 18, Fig. 19, Fig. 20, Fig. 21 to Fig. 22 may have been changed.
[0067] In other words, the multiple microemission lenses 410 of the second lens part 400 can be spaced apart such that at least one of the intervals spaced downwards and laterally can be a different interval based on the distance or direction from the central section of the second lens part 400.
[0068] Furthermore, the shielding element 300 can have the multiple shields 310 of the same shape in the exemplary embodiment described above, but the disclosure is not limited thereto, and the multiple shields 310 can form different parts of the light distribution. For example, according to Fig. 23 a part 310a of the several shields 310 form both a horizontal edge and an inclined edge of the light-dark boundary, another part 310b can form the horizontal edge of the light-dark boundary, and yet another part 310c can form the inclined edge of the light-dark boundary.
[0069] Since, in the exemplary embodiment of the disclosure, the light-dark boundary is the horizontal edge and the inclined edge according to the previously described Fig. 9A and Fig. Although the multiple shields 310 can form the horizontal edge and / or the inclined edge, the foregoing example, which can exhibit the characteristics shown in 9B, is merely an example for better understanding of the disclosure. The multiple shields 310 can also form the same edge or different edges based on a light-dark boundary shape.
[0070] As previously described, the vehicle luminaire 1 of the disclosure can improve light utilization efficiency by reducing an area blocked by the shielding to form the light-dark boundary of the light distribution, and can reduce light loss by varying at least one of intervals in the lateral or downward direction based on a direction in which the light is moving.
[0071] Furthermore, in the exemplary embodiment described above, the center line C2 of the second lens part 400 can be arranged such that it is spaced in at least one direction (lateral and downward) with respect to the center line C1 of the first lens part 200 in order to improve light utilization efficiency by reducing the light that is blocked to form the light-dark boundary of the light distribution. However, the disclosure is not limited thereto, and the light axis Ax of the light source 110 can be arranged such that it is spaced in at least one direction (lateral and downward) with respect to the center line C1 of the first lens part 200 and the center line C2 of the second lens part 400 in order to reduce the light that is blocked to form the light-dark boundary of the light distribution.
[0072] Fig. Figure 24 is a side view of a vehicle light according to a further exemplary embodiment of the disclosure, and Fig. Figure 25 is a top view of the vehicle light according to a further exemplary embodiment of the disclosure. With reference to Fig. 24 and Fig. 25. A vehicle light 1 according to a further exemplary embodiment of the disclosure may have a light source part 100, a first lens part 200, a shielding part 300 and a second lens part 400 as in the exemplary embodiment described above; the same reference numerals are used for elements configured to perform the same or similar functions as those of the exemplary embodiment described above, and a more detailed description of such functions is omitted.
[0073] In another exemplary embodiment of the disclosure, the center lines C1 and C2 of the first lens part 200 and the second lens part 400 can be arranged to coincide, and a light axis Ax can be arranged such that it is spaced apart from the center lines C1 and C2 in the lateral direction and / or downward direction in a light source 110.
[0074] In this case, the light axis Ax of the light source 110 can be arranged such that it is spaced away from the center lines C1 and C2 of the first lens part 200 and the second lens part 400 in at least one direction from the lateral and downward directions, in order to arrange a center of a light distribution formed by the vehicle lamp 1 of the disclosure such that it is spaced away from a vanishing point at which the line HH and the line VV diverge in the lateral and downward directions according to Fig. Cut 9B to reduce light loss by shrinking an area blocked by the shielding part 300 to form a light-dark boundary.
[0075] Fig. Figure 24 is an example of a case in which the light axis Ax of the light source 110 is arranged such that it is spaced downwards from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, and Fig. 25 is an example of a case in which the light axis Ax of the light source 110 is arranged such that it is spaced laterally (right-hand direction) from the center lines C1 and C2 of the first lens part 200 and the second lens part 400.
[0076] An image of light emitted from the first lens part 200 and the second lens part 400, when the light axis Ax of the light source 110 is arranged according to a further exemplary embodiment of the disclosure such that it is spaced laterally from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, is formed by means of Fig. 26 and Fig. 27 shown.
[0077] Fig. Figure 26 is an example of an image of light emitted from the first lens part 200 when the light axis Ax of the light source 110 is arranged such that it is spaced to the right from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, and the image of the light can be arranged such that it is spaced laterally compared with a case in which the light axis Ax of the light source 110 coincides with center lines C1 and C2 of the first lens part 200 and the second lens part 400.
[0078] Fig. Figure 27 is an example of an image of light emitted by the second lens part 400 when the light axis Ax of the light source part 100 is arranged such that it is spaced to the right from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, and the image of the light can be arranged such that it is spaced laterally compared with the case in which the light axis Ax of the light source 110 coincides with the center lines C1 and C2 of the first lens part 200 and the second lens part 400.
[0079] In this case, part B21 of the image of the light emitted by the second lens element 400 can be blocked by the shielding element 300 to form a light-dark boundary of a low-beam distribution. A dotted line in the previously described Fig. 26 and Fig. Figure 27 shows a light distribution in a case where the light axis Ax of the light source 110 coincides with the center lines C1 and C2 of the first lens part 200 and the second lens part 400. If the light axis Ax of the light source 110 is positioned such that it is spaced clockwise from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, light loss can be reduced because the area B21 blocked by the shielding part 300 can be relatively smaller. Furthermore, since a center of the light distribution can be positioned such that it is spaced laterally from the vanishing point where line HH and line VV intersect, the brightness of the light distribution can be increased, and visibility can be improved.
[0080] Furthermore, if the light axis Ax of the light source 110 is arranged such that it is spaced clockwise from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, the light distribution can, as is known, shift counterclockwise. Fig. 26 and in a right-hand direction in Fig. 27 move, since each of the lateral sides of light passing through the first lens part 200 and the second lens part 400 can be represented in an inverted image, and light produced by the light source 110 can move in the clockwise direction in which the light source 110 can be spaced by passing through the first lens part 200 and the second lens part 400.
[0081] An image of light emitted from the first lens part 200 and the second lens part 400, when the light axis Ax of the light source 110 is arranged according to a further exemplary embodiment of the disclosure such that it is spaced downwards from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, is formed by means of Fig. 28 and Fig. 29 shown.
[0082] Fig. Figure 28 is an example of an image of light emitted from the first lens part 200 when the light axis Ax of the light source 110 is arranged such that it is spaced downwards from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, and the image of the light can be arranged such that it is spaced upwards compared to the case in which the light axis Ax of the light source 110 coincides with the center lines C1 and C2 of the first lens part 200 and the second lens part 400.
[0083] Fig. Figure 29 is an example of an image of light emitted by the second lens part 400 when the light axis Ax of the light source 110 is arranged such that it is spaced downwards from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, and the image of the light can be arranged such that it is spaced downwards compared to the case in which the light axis Ax of the light source 110 coincides with the center lines C1 and C2 of the first lens part 200 and the second lens part 400.
[0084] In this case, part B31 of the image of the light emitted by the second lens part 400 can be blocked by the shielding part 300 to form a light-dark boundary of a low beam distribution.
[0085] A dotted line in the previously described Fig. 28 and Fig. Figure 29 shows a light distribution in a case where the light axis Ax of the light source 110 coincides with the center lines C1 and C2 of the first lens part 200 and the second lens part 400. If the light axis Ax of the light source 110 is positioned such that it is spaced downwards from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, the light loss can be reduced because the area B31 blocked by the shielding part 300 can be relatively smaller. Furthermore, since a center of the light distribution can be positioned such that it is spaced downwards from the vanishing point where the line HH and the line VV intersect, the brightness of the light distribution can be increased, and visibility can be improved.
[0086] Furthermore, if the light axis Ax of the light source 110 is arranged such that it is spaced downwards from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, the light distribution can, as is known, shift upwards into Fig. 28 and downwards in Fig. 29 move, since each of the vertical sides of light passing through the first lens part 200 and the second lens part 400 can be represented in an inverted image, and the light produced by the light source 110 can move downwards in the direction in which the light source 110 is spaced by passing through the first lens part 200 and the second lens part 400.
[0087] In a further exemplary embodiment of the disclosure, if the light axis Ax of the light source 110 is arranged such that it is spaced laterally from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, light passing through the microincidence lens 210 can not only fall on a corresponding microemission lens 410, but also on other adjacent microemission lenses, which is why a light radiation area can be extended laterally.
[0088] In particular, if the light axis Ax of the light source 110 and the center lines C1 and C2 of the first lens part 200 and the second lens part 400 coincide, light incident on the multiple micro-incidence lenses 210 can be incident on multiple corresponding micro-emission lenses 410 by moving parallel to the light axis Ax of the light source part 100. Conversely, if the light axis Ax of the light source 110 is arranged such that it is spaced laterally from the center lines C1 and C2 of the first lens part 200 and the second lens part 400, the light incident on the multiple micro-incidence lenses 210 can be incident on the micro-incidence lens 210 at a predetermined angle laterally with respect to the center axis Ax1 according to Fig. 30, despite the fact that part L1 of the light incident on the microincidence lenses 210 can incident on the corresponding microemission lenses 410, the remaining light (L2) can incident on other microemission lenses adjacent to the microemission lenses 410.
[0089] In this case, the luminous radiation range emitted by the vehicle lamp 1 of the disclosure can be extended more strongly laterally by the light incident on other microemission lenses adjacent to the corresponding microemission lenses 410. Consequently, if the light axis Ax of the light source 110 and the center lines C1 and C2 of the first lens part 200 and the second lens part 400 coincide, the luminous radiation range can be extended more strongly laterally compared to a path along which the light travels (dotted line), thereby improving visibility. Thus, according to Fig.31 the propagation area of the light distribution formed by the vehicle light 1 of the disclosure shall be extended to ensure a wider view.
[0090] As previously described, in the vehicle lamp 1 of the disclosure, the light axis Ax of the light source 110, the center line C1 of the first lens part 200 or the center line C2 of the second lens part 400 can be arranged such that it is spaced apart from others in the lateral and / or downward direction in order to reduce light loss by minimizing the area blocked to form the light-dark boundary of the light distribution, and to increase the brightness of the light distribution, thereby improving visibility by preventing the blocking of a center of the light distribution that has high brightness.
[0091] The vehicle light described above can achieve at least one of the effects described below. Since a light distribution can be formed to move laterally and / or downwards, the area blocked to form a light-dark boundary of the light distribution can be reduced, thus minimizing light loss. Furthermore, since the light distribution can be formed to move laterally and / or downwards, visibility can be improved because the blockage of a center of the light distribution with high brightness can be prevented, thereby increasing the brightness of the light distribution. It should be noted that the effects of the disclosure are not limited to those described above, and other effects of the disclosure will be clear to the person skilled in the art from the descriptions in the claims.
Claims
[1] Vehicle light (1) which features: a light source part (100) with a light source (110); a first lens part (200) with several microincidence lenses (210, 210a, 210b, 210c, 210d, 210e) onto which light generated by the light source part (100) falls; a second lens part (400) with several microemission lenses (410, 410a, 410b, 410c, 410d, 410e), each corresponding to one of the several microincidence lenses (210, 210a, 210b, 210c, 210d, 210e); and a shielding part (300) arranged between the first lens part (200) and the second lens part (400), the shielding part (300) having several shields (310) configured to block part of the light incident from the multiple microincidence lenses (210, 210a, 210b, 210c, 210d, 210e) onto the multiple microemission lenses (410, 410a, 410b, 410c, 410d, 410e), wherein each of the multiple microemission lenses (410, 410a, 410b, 410c, 410d, 410e) is arranged such that its respective central axis (Ax2) is spaced from a central axis (Ax1) of the corresponding microincidence lens (210, 210a, 210b, 210c, 210d, 210e) in the state installed in a vehicle in a lateral direction (x) and / or a downward direction (y), wherein each of the multiple shields (310) is arranged such that its respective upper end in the vehicle-installed state is located on the central axis (Ax2) of the corresponding microemission lens (410, 410a, 410b, 410c, 410d, 410e) to form a light-dark boundary of a light distribution produced by the vehicle lamp (1), and wherein each of the multiple shields (310) is displaced in the lateral direction (x) and / or the downward direction (y) with respect to a center line (C1) connecting the centers of an incident surface and an emission surface of the first lens part (200). [2] Vehicle light (1) according to claim 1, wherein a micro-emission lens (410, 410a) arranged on a central section of the second lens part (400) is arranged such that it is spaced at a predetermined distance (w) in the lateral direction (x) and / or at a predetermined distance (d) in the downward direction (y) from the central axis (Ax1) of the corresponding micro-incidence lens (210, 210a). [3] Vehicle lamp (1) according to claim 2, wherein the multiple microemission lenses (410, 410a, 410b, 410c, 410d, 410e) are arranged such that at least one of their distances (d, d11, d12, w, w11, w12) in the lateral direction (x) and in the downward direction (y) varies on the basis of their distance from a center of the second lens part (400) and / or on the basis of their direction relative to the center of the second lens part (400). [4] Vehicle lamp (1) according to claim 3, wherein a micro-emission lens (410b) arranged above the central section of the second lens part (400) is arranged such that it is spaced apart in the downward direction (y) by a smaller distance (d11) than the predetermined distance (d). [5] Vehicle lamp (1) according to claim 3 or 4, wherein a micro-emission lens (410c) arranged below the central section of the second lens part (400) is arranged such that it is spaced apart in the downward direction (y) by a greater distance (d12) than the predetermined distance (d). [6] Vehicle light (1) according to one of claims 3 to 5, wherein a microemission lens (410d) arranged such that it is spaced from the central section of the second lens part (400) to a first side in the lateral direction (x) is arranged such that a distance (w11) is smaller than the predetermined distance (w), and wherein a microemission lens (410e) arranged such that it is spaced from the central section of the second lens part (400) to a second side in the lateral direction (x) is arranged such that a distance (w12) to the second side is greater than the predetermined distance (w). [7] Vehicle lamp (1) according to one of the preceding claims, wherein some of the multiple shields (310) have shapes that differ from shapes of the other shields in order to form different areas of the light distribution produced by the vehicle lamp (1). [8] Vehicle light (1) according to one of the preceding claims, wherein the light source part (100) further comprises a light guide part (120) configured to direct the light generated by the light source (110) to the first lens part (200), and wherein the light guide part (120) is configured to provide a light path so that the light generated by the light source (110) can move parallel to a light axis (Ax) of the light source (110). [9] Vehicle light (1) according to claim 8, wherein the light guide part (120) has a collimator lens configured to convert the light generated by the light source (110) into parallel light. [10] Vehicle light (1) according to one of the preceding claims, wherein at least one of the several microincidence lenses (210, 210a, 210b, 210c, 210d, 210e) and the several microemission lenses (410, 410a, 410b, 410c, 410d, 410e) is a lens with a semi-cylindrical shape.
Citation Information
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