Vehicle light

Abstract

Lamp (300) for a vehicle (1) which has: a light source (311) configured to emit light; a lens arrangement (330) which is provided on a front side of the light source (311) and comprises: a first lens (340) comprising several first microlenses (341) configured to receive and transmit the light emitted by the light source (311); a second lens (350) comprising several second microlenses (351) configured to transmit the light transmitted by the first lens (340); and a shield (360) that is positioned and configured between the first lens (340) and the second lens (350): to shield part of the light transmitted by the first lens (340) in order to form a beam pattern on a road surface (2) in front of the vehicle (1), and to modify an image of the beam pattern projected onto the road surface (2), wherein the shielding has (360): a shielding body (360a); and several mask units (361) arranged on the shielding body (360a) and each correspond to the multiple second microlenses (351) and have a masking pattern for forming the beam pattern; and wherein the luminaire (300) further comprises a drive element (370) configured to provide drive energy for moving the shield (360), wherein: the drive part (370) has: a first roller (371) and a second roller (373) which are spaced apart vertically and have an outer surface which engages with the shielding body (360a); and an actuator (375) which is connected to a rotating shaft (372) of the first roller (371) and configured to rotate the first roller (371), and the shielding body (360a) is configured to rotate together with the first roller (371) or the second roller (373) when the first roller (371) is rotated.

Description

Cross-reference to related registrations

[0001] This application claims priority over Korean patent application No. 10-2022-0055211, which was filed with the Korean Intellectual Property Office on May 4, 2022. Technical field

[0002] The present disclosure relates to a lamp for a vehicle and in particular to a lamp for a vehicle in which a microlens arrangement is arranged. background

[0003] AT 517 887 A1 discloses a micro-projection light module for a vehicle headlight, comprising at least one light source and at least one projection device which projects the light emitted from the at least one light source into an area in front of the vehicle in the form of at least one light distribution, wherein the projection device comprises an inlet optic having one, two or more micro-inlet optics, which are preferably arranged in an array, and an outlet optic having one, two or more micro-outlet optics, which are preferably arranged in an array, wherein each micro-inlet optic is assigned exactly one micro-outlet optic, wherein the micro-inlet optics are configured and / or the micro-inlet optics and the micro-outlet optics are arranged relative to each other in such a manner.that essentially all the light exiting a micro-entry optic enters precisely only the associated micro-exit optic, and wherein the light pre-shaped by the micro-entry optics is imaged by the micro-exit optics into an area in front of the motor vehicle as at least one light distribution, wherein the at least one light source is associated with a front optic device into which the at least one light source shines the light it emits, and which front optic device is designed such that the light exiting it is substantially parallel, and the entry optic has at least one planar interface, wherein the at least one planar interface faces the front optic device.

[0004] KR 10 2018 0 111 027 A discloses a lamp for a car with a light source part, a first lens part with several micro-incidence lenses onto which the light generated by the light source part falls, a second lens part with several micro-outcidence lenses corresponding to the several micro-incidence lenses and a shielding part arranged between the first lens part and the second lens part and having several shields to shield part of the light incident on the several micro-emission lenses from the several micro-incidence lenses, wherein the light axes of the several micro-emission lenses are arranged at a distance from each other downwards and laterally around the light axes of the several micro-incidence lenses.

[0005] A microlens array (MLA) comprises multiple microlenses arranged to project an image. Microlens arrays can display an image of excellent quality in a small size and are therefore widely used in various fields. In recent years, studies have been conducted on reducing the size of a vehicle light by using a microlens with a relatively small focal length range.

[0006] According to the design of a vehicle light containing a microlens array, the amount of light in a long-range pattern can be affected when the light is directed onto a road surface that is inclined, and therefore it can be difficult to ensure the uniformity of the pattern. Accordingly, it is necessary to improve a technology for increasing the uniformity of an optical pattern by minimizing the loss of light.

[0007] Furthermore, in vehicle lights with a microlens arrangement, the resolution and optical performance can degrade according to the angle of inclination when the light is directed onto a sloping road surface. Additionally, the optical system itself is conventionally mounted at an angle to direct the light onto the road surface, thus increasing the light's angle. In this case, the size of the vehicle light increases as the area occupied by the optical system within the light increases.

[0008] Meanwhile, a welcome ceremony is generally a technology used to increase comfort and product value by displaying various pieces of information about the vehicle's status to the driver before the vehicle is driven. As an example of a welcome ceremony, a welcome light or puddle light is a technology that creates a beam pattern when illuminated from a side panel of a vehicle when a user intends to unlock a door with a smart key. This serves to inform the driver of information such as parking location while increasing the vehicle's product value.

[0009] In recent years, for vehicle lights, such as a welcome light, which display certain information on the road surface, an optical system of a projection type that uses a microlens arrangement has been used.

[0010] However, since optical projection systems typically only implement a pattern with a static image, implementing a dynamic image is difficult. Consequently, with conventional technology, ensuring visibility and intuitively understanding information through the implementation of a dynamic image is challenging.

[0011] Since conventional technology generates an image using a single optical system, there is also a difference in brightness between a long-range pattern and a short-range pattern in the beam pattern projected onto the road surface. Consequently, ensuring the uniformity of the pattern is difficult. Summary

[0012] The present disclosure was made to solve the above-mentioned problems that arise in the prior art, while retaining the advantages of the prior art.

[0013] One aspect of the present disclosure provides a light for a vehicle that improves visibility by attracting the driver's attention and increasing the intuitiveness of information intake.

[0014] The technical problems to be solved by the present disclosure are not limited to the problems mentioned above, and any other technical problems not mentioned here will be clearly understood by those skilled in the art in the field to which the present disclosure relates, based on the following description.

[0015] According to one aspect of the present disclosure, a lamp for a vehicle has a light source part that generates and emits light, and a lens arrangement provided on a front face of the light source part, wherein the lens arrangement has a first lens part with several first microlenses to which the light from the light source part is supplied, a second lens part with several second microlenses that emits the light supplied from the first lens part, and a shielding part arranged between the first lens part and the second lens part that shields part of the light supplied from the first lens part to the second lens part in order to form a specific beam pattern on a road surface, and the shielding part is provided to be movable in order to convert a lighting image of the beam pattern formed on the road surface.

[0016] The light also contains a drive unit that supplies the drive energy, allowing the shielding part to be movable.

[0017] The shielding part has a shielding body and several mask units which are provided in the shielding body in such a way that they correspond to the several second microlenses, and in which a masking pattern is formed to create the beam pattern.

[0018] Each of the mask units can contain a shielding area that blocks the light and a passage area that allows the light to pass through, and can have a shape that corresponds to the masking pattern.

[0019] The drive part has a pair of rollers, a first roller and a second roller, which are spaced apart vertically and have an outer surface, as well as an actuator which is connected to a rotating shaft of the first roller and rotates the first roller, and the shielding body can be rotated together with the first roller or the second roller when the first roller is rotated.

[0020] The pair of rollers can be arranged parallel to each other.

[0021] The drive unit can be configured to change the rotational speed of the roller.

[0022] The masking patterns formed in the multiple mask units can display the same image.

[0023] A focal point of the second microlens can be located on the shielding part, and the shielding part can be configured such that the shapes of the masking patterns of the mask units located on focal points of the multiple second microlenses are the same at any given time when the actuator is driven.

[0024] The shielding part can have a rear part that is opposite the first microlens with respect to the roll at any point, and a front part that is opposite the second microlens, and the mask unit, which is located at a focal point of the second microlens, can be arranged on the front part.

[0025] The curvatures of the multiple second microlenses can be the same. Brief description of the drawings

[0026] The above and other tasks, features and advantages of the present disclosure will become clearer from the following detailed description in conjunction with the accompanying drawings: Fig. 1 is a view showing an example in which a light for a vehicle according to a first embodiment of the present disclosure is installed in a vehicle; Fig. Figure 2 is a perspective view showing the light for a vehicle according to the first embodiment of the present disclosure; Fig. Figure 3 is a side view showing the light for a vehicle according to the first embodiment of the present disclosure; Fig. 4 is a front view obtained by viewing a lens arrangement according to the first embodiment of the present disclosure from a front view; Fig. Figure 5 is a view showing a mask unit of a shielding part according to the first embodiment of the present disclosure; Fig. Figure 6 shows a side view of the light for a vehicle according to the first embodiment of the present disclosure and is an enlarged view of part of the Fig. 3; Fig. Figure 7 shows a side view of a light for a vehicle according to a modification of the first embodiment of the present disclosure; Fig. 8A is a view showing a mask unit arranged in a middle region of the lens arrangement according to the present disclosure, i.e. in a first region; Fig. 8B is a view showing a mask unit arranged between a central region and a peripheral region of the lens arrangement according to the present disclosure; Fig. 8C is a view showing a mask unit arranged in a circumferential area of ​​the lens arrangement according to the present disclosure; Fig. 9 is a view which schematically shows a light for a vehicle according to a second embodiment of the present disclosure; Fig. 10 is a view which schematically shows a light for a vehicle according to a comparative example in the present disclosure; Fig. Figure 11 is a side view showing a light for a vehicle according to a second embodiment of the present disclosure; Fig. Figure 12 is a side view showing a light for a vehicle according to a modification of the second embodiment of the present disclosure; Fig. Figure 13 is a side view showing a light for a vehicle according to a further modification of the second embodiment of the present disclosure; Fig. Figure 14 is a side view showing a light for a vehicle according to a further modification of the second embodiment of the present disclosure; Fig. Figure 15 is a perspective exploded view showing a light for a vehicle according to a third embodiment of the present disclosure; Fig. Figure 16 is a view showing the light for a vehicle according to the third embodiment of the present disclosure, and is a view of the Fig. 15, viewed from a lateral side; Fig. Figure 17 shows an example of a mask unit housed in a shielding body made of Fig. 16 is trained; Fig. Figure 18 shows the radiation patterns projected onto a road surface; Fig. Figure 19 is a view showing an example in which a light for a vehicle is installed in a vehicle according to a fourth embodiment of the present disclosure; Fig. Figure 20 is a perspective view showing the light for a vehicle according to the fourth embodiment of the present disclosure; Fig. 21 is a side cross-sectional view showing the light for a vehicle according to the fourth embodiment of the present disclosure; Fig. 22A illustrates a part of a first division area of ​​a lens arrangement according to the fourth embodiment of the present disclosure, and Fig. 22B illustrates part of a fourth division area of ​​the lens arrangement according to the fourth embodiment of the present disclosure; Fig. Figure 23 is a side cross-sectional view showing a light for a vehicle according to a modification of the fourth embodiment of the present disclosure; Fig. 24A is an enlarged cross-sectional view showing a first division area of ​​the lens arrangement according to the fourth embodiment of the present disclosure, Fig. Figure 24B is an enlarged cross-sectional view showing a second division area of ​​the lens arrangement, and Fig. 24C is an enlarged cross-sectional view showing a fourth division area of ​​the lens arrangement; Fig. Figure 25 is a side cross-sectional view showing a light for a vehicle according to a further modification of the fourth embodiment of the present disclosure; Fig. Figure 26 is a perspective view showing a light for a vehicle according to a further modification of the second embodiment of the present disclosure; Fig. 27 is a side view showing the Fig. 26. The illustrated light for a vehicle is shown as seen from a lateral side; and Fig. Figure 28 is a view showing the operation of a lamp for a vehicle according to a further modification of the fourth embodiment of the present disclosure. Detailed description

[0027] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0028] Initially, the embodiments described here are suitable for understanding the technical features of a lamp for a vehicle according to the present disclosure. However, the present disclosure is not limited to the embodiment described below, and the technical features of the present disclosure are not limited by the described embodiments, and the present disclosure can be modified in various ways without deviating from the technical scope of the present disclosure.

[0029] A luminaire 100, 200, 300 or 400 according to the present disclosure relates to a luminaire for a vehicle which uses a microlens arrangement and may, for example, be a guide luminaire which produces a pattern image of a certain shape on a road surface 2 adjacent to a vehicle 1 by projecting light onto the road surface.

[0030] As an example, the lights 100, 200, 300, and 400 for a vehicle according to the present disclosure can be a rear guide light, a welcome guide light, or a flashing guide light that is switched on or off together with a rear light. The following is an example of a case in which the lights 100, 200, 300, and 400 for a vehicle according to the present disclosure are the rear guide light (see Fig. 1) or the flashing light (see Fig. 15). However, the lamps 100, 200, 300 and 400 for a vehicle according to the present disclosure are not limited to such a lamp for a vehicle, and any lamp which emits a certain pattern onto a road surface can be used without restriction.

[0031] In this case, the 100, 200, 300, and 400 luminaires for a vehicle often emit light at an angle towards the road surface. Consequently, a difference in brightness can occur in the light pattern between a long-range pattern area located far from the luminaire and a short-range pattern area located near the luminaire. That is, the brightness of the long-range pattern area may be lower than that of the short-range pattern area, which can impair optical uniformity. The present disclosure proposes a technology to solve this problem. First embodiment

[0032] Fig. Figures 1 to 8C show a first embodiment of the present disclosure. Fig. Figure 1 is a view showing an example in which a light for a vehicle according to a first embodiment of the present disclosure is installed in a vehicle. Fig. Figure 2 is a perspective view showing the light for a vehicle according to the first embodiment of the present disclosure. Fig. Figure 3 is a side view showing the light for a vehicle according to the first embodiment of the present disclosure. Fig. Figure 4 is a front view obtained by viewing a lens arrangement according to the first embodiment of the present disclosure from a front view. Fig. Figure 5 is a view showing a mask unit of a shielding part according to the first embodiment of the present disclosure. Fig. Figure 6 shows a side view of the light for a vehicle according to the first embodiment of the present disclosure and is an enlarged view of part of the Fig. 3. Fig. Figure 7 shows a side view of a light for a vehicle according to a modification of the first embodiment of the present disclosure. Fig. Figure 8A is a view showing a mask unit arranged in a middle region of the lens arrangement according to the present disclosure, i.e., in a first region. Fig. Figure 8B is a view showing a mask unit arranged between a central region and a peripheral region of the lens arrangement according to the present disclosure. Fig. 8C is a view representing a mask unit arranged in a circumferential area of ​​the lens arrangement according to the present disclosure.

[0033] With reference to the Fig. In Figures 1 to 8C, the lamp 100 for a vehicle according to the first embodiment of the present disclosure comprises a light source (or a light source part) 110 and a lens arrangement 130. Furthermore, the lamp 100 for a vehicle according to the first embodiment of the present disclosure may also comprise a shield (or a shielding part) 160.

[0034] The light source part 110 is configured to generate and emit (i.e., radiate or release) light. The lens assembly 130 is provided on a front face of the light source part 110 and is configured to direct the light supplied by the light source part 110 to a front face.

[0035] The light source part 110 can, for example, be configured to emit light in a direction towards the road surface 2. The light source part 110 can include a light source 111 and a collimator 113. The light source 111 can, for example, be a light-emitting diode (hereinafter referred to as "LED"), but the present disclosure is not limited to this. The collimator 113 can convert the light emitted by the light source 111 into light that is parallel to an optical axis and can direct the light to a first lens part 140.

[0036] The lens arrangement 130 has the first lens part (or first lens part) 140 and a second lens (or second lens part) 150.

[0037] The first lens part 140 has several first microlenses 141 to which light is supplied from the light source part 110. The second lens part 150 has several second microlenses 151 configured to emit the light supplied by the first lens part 140.

[0038] For example, each of the first microlenses 141 can have an input surface shaped to be convex in a direction opposite the light source part 110, and the input surfaces of the multiple first microlenses 141 can be combined to form an input surface of the entire first lens part 140. Furthermore, each of the second microlenses 151 can have an output surface shaped to be convex in the direction opposite the road surface 2, and the output surfaces of the plurality of second microlenses 151 can be combined to form an output surface of the entire second lens part 150. Meanwhile, the shapes of the first microlenses 141 and the second microlenses 151 are not limited to the above description.

[0039] For example, the first lens 140 can also have a first transparent body 143, and the first transparent body 143 can have the first microlenses on a surface opposite the light source part 110, and can be made of a material that transmits light.

[0040] Furthermore, the second lens element 150 can, for example, have a second light-transmitting body 153, and the second microlenses 151 can be formed on a surface that points in a direction opposite to that of the first light-transmitting body 143 in order to transmit light. In addition, the second light-transmitting body 153 can be configured to face the first light-transmitting body 143, with the shield (or shielding element) 160 positioned between them.

[0041] The first transparent body 143 and the second transparent body 153 can serve as bodies for the integral formation of the first lens part 140 and the second lens part 150. However, the present disclosure is not limited to this, and if the first lens part 140 and the second lens part 150 are not integrally formed, at least one of the first transparent body 143 and the second transparent body 153 can be omitted.

[0042] Meanwhile, the upper / lower sizes of at least some of the first microlenses 141 can be smaller than the upper / lower sizes of the second microlenses 151, which are provided at a corresponding location.

[0043] In particular, if a central region of the lens arrangement 130, corresponding to a sub-region of the lens arrangement 130 and through which an optical axis of the light source part 110 passes, is defined as a first region “I”, and a region located on a perimeter of the first region “I”, corresponding to the remaining regions of the lens arrangement 130, is defined as a second region “II”, when the lens arrangement 130 is viewed from a rear view, then the upper / lower dimensions of the first microlenses 141 provided in the second region “II” can be smaller than the upper / lower dimensions of the second microlenses 151 provided in the second region “II”.

[0044] In detail, the first area “I”, which is a central area of ​​the entrance surface of the first lens part 140, in which the intensity of the light emitted by the light source 110 is highest, can be formed in an area in which the upward and downward directed sizes of the first microlenses 141 and the second microlenses 151 are equal or similar.

[0045] Specifically, in the second area “II”, which is an outer area of ​​the middle area of ​​the entrance surface of the first lens part 140, in which the intensity of the light emitted by the light source part 110 is relatively low, the sizes of the first microlenses 141 upwards / downwards are smaller than those of the second microlenses 151.

[0046] As in the illustrated embodiment, for example, the up / down dimensions of the second microlenses 151 in the second region “II” can be twice the up / down dimensions of the first microlenses 141. However, the present disclosure is not limited thereto, and the up / down dimensions of the second microlenses 151 in the second region “II” can be three times or more the up / down dimensions of the first microlenses 141.

[0047] If the thicknesses of the lenses are similar, the curvature of the lenses increases as the sizes of the lenses decrease, and the amount of light supplied through the lenses can increase as the curvatures increase. According to the first embodiment, the amount of light entering through the first microlenses 141 in the second region “II”, which is a region where the intensity of the light emitted by the light source part 110 is relatively low, can be increased by making the sizes of the first microlenses 141 provided in the second region “II” smaller.

[0048] Accordingly, according to the present disclosure, the uniformity of the amount of light supplied to the entire area of ​​the first lens part 140 can be improved, and thus the uniformity of the beam pattern formed on the road surface 2 by the lens arrangement 130 can be improved. Accordingly, according to the present disclosure, the uniformity of the beam pattern formed on the road surface 2 can be improved without using an additional light source 111, by minimizing the loss of the amount of light.

[0049] Meanwhile, the curvatures above / below of the first microlenses 141 provided in the second area “II” can be greater than the curvatures above / below of the first microlenses 141 provided in the first area “I”.

[0050] Specifically, the radii of curvature of the first microlenses 141 of the second region “II” can be smaller than those of the first microlenses 141 of the first region “I”. Accordingly, the loss of light can be minimized by increasing the amount of light supplied through the first microlenses 141 of the second region “II”, and thus the uniformity of the amount of light supplied to the entire region or the first lens part 140 can be improved.

[0051] Meanwhile, the sizes of the multiple first microlenses 141 provided in the second area “II” can become smaller as they move further away from the first area “I”.

[0052] Specifically, the intensity of the light emitted by the light source 111 and passing through the collimator 113 is highest in a central region of the first lens section 140 and gradually decreases with increasing distance from this central region. Since the sizes of the multiple first microlenses 141 provided in the second region "II" decrease with increasing distance from the central region, the amount of light supplied by the first microlenses 141 of the second region can be increased.

[0053] Meanwhile, the shielding part 160 can be arranged between the first lens part 140 and the second lens part 150 and shield a portion of the light that is supplied from the first lens part 140 to the second lens part 150 in order to form a specific beam pattern on the road surface 2.

[0054] Specifically, the shielding element 160 can contain a mask unit 161. Several mask units 161 can be provided to correspond to the multiple second microlenses 151, and a masking pattern can be formed to create the beam pattern. That is, the mask units 161 can be provided to correspond to the second microlenses 151 arranged on an output side of the lens arrangement 130.

[0055] More precisely, each of the mask units 161 can have a shielding area 162, configured to block the light, and a passage area 163 with a shape corresponding to the masking pattern. Depending on the shape of the passage area 163, i.e., the shape of the masking pattern, the image of the beam pattern projected onto the road surface 2 can be modified. For example, the mask unit 161 can have the shape of a plate, and the specific beam pattern can be formed by masking the light in the shielding area 162.

[0056] Meanwhile, a direction that is further away from light 100 for a vehicle in the beam pattern is defined as the long-range direction, and a direction opposite to the long-range direction is defined as the short-range direction.

[0057] In the second area “II”, several first microlenses 141 can be provided, which are arranged in such a way that they correspond to a second microlens 151.

[0058] The shielding area 162 can have a long-range edge 162b, which touches an end of the passage area 163 and forms an end line in the long-range direction of the beam pattern, and a short-range edge 162a, which is opposite the long-range edge 162b and forms an end line in the short-range direction of the beam pattern. In the illustrated embodiment, for example, the long-range edge 162b can touch a lower end of the passage area 163, and the short-range edge 162a can touch an upper end of the passage area 163.

[0059] Here, a focal point “F” of the first microlens 141, which corresponds to the one second microlens 151 that forms the ray pattern in the direction with the longest distance, can be formed at a location corresponding to the long-distance edge 162b. For example, with reference to Fig. 6. Among the first microlenses 141 arranged in the upward / downward direction, the first microlens 141 located on a top side forms the beam pattern in the long-range direction. Furthermore, the focus “F” of the first microlens 141 located on the top side can be positioned adjacent to the long-range edge 162b.

[0060] In this way, since the focal point “F” of the first microlens 141 is located at the long-range edge 162b, a point of maximum light intensity of the first microlens 141 is located at the long-range edge 162b. Accordingly, the brightness of the long-range region of the beam pattern can be increased and the uniformity of the beam pattern improved.

[0061] However, if the curvature of the first microlens 141 on the top side and the curvature of the first microlens 141 on the bottom side are the same as in Fig. 6, a point of maximum light intensity of the first microlens 141 is even located at the short-range area edge 162a. In this case, the brightness of the pattern in the short-range direction and the brightness of the pattern in the long-range direction can become uneven.

[0062] As in Fig. As shown in Figure 7, in the second area “II”, the upward / downward curvature of the first microlens 141, which forms the radiation pattern in the direction of the longest distance, can be greater among the several first microlenses 141, which correspond to a second microlens 151, than the upward / downward curvature of the other first microlenses 141.

[0063] Accordingly, the radius of curvature of the first microlens 141, which directs the light onto the short-range region, can be increased, and the condensation rate can be reduced. Since the brightness of the long-range and short-range regions in the beam pattern is uniform, the uniformity of the pattern can be improved accordingly.

[0064] Furthermore, with reference to Fig. 7 the focal point “F” of the first microlenses 141, which forms the beam pattern in the direction with the longest distance, is located in the passage area 163.

[0065] Furthermore, the focal point “F” of the remaining first microlenses 141, which do not form the beam pattern in the direction with the longest distance, can be located at a point that is spaced forward or backward from the passage surface 163.

[0066] Since the brightness of the long-range and short-range areas in the beam pattern is uniform, the uniformity of the pattern can be improved.

[0067] Meanwhile, Fig. 8A a view showing the mask unit 161, which is arranged in the middle region of the lens arrangement 130 according to the present disclosure, i.e. in the first region “I”. Fig. Figure 8C is a view showing the mask unit 161 arranged in a circumferential area of ​​the lens arrangement 130 according to the present disclosure. Fig. Figure 8B is a view showing the mask unit 161, which is arranged between the central area and a peripheral area of ​​the lens arrangement 130 according to the present disclosure.

[0068] With reference to the Fig. In the multiple mask units 161, the size of the passage area 163 can gradually increase as it moves further away from the central section through which the optical axis of the light source part 110 passes.

[0069] Specifically, the intensity of the light passing through the collimator 113 and entering the first lens part 140 can be highest in a central region of the first lens part 140. Furthermore, the brightness of the beam pattern can be higher as the sizes of the passage areas 163 of the mask units 161 increase. In the mask unit 161 according to the present disclosure, the size of the passage area 163 can gradually increase as it extends from the central section of the lens arrangement 130 to an edge thereof, thereby improving the optical uniformity of the beam pattern projected onto the road surface 2.

[0070] Here, the sizes of the passage areas 163 of the mask units 161, which are adjacent in a direction opposite the circumference of the lens arrangement 130 from the central part, can differ within a certain range (e.g., about 1 mm). Accordingly, a change in the amount of light does not occur abruptly between pattern areas corresponding to the adjacent mask units 161, thus preventing a sensation of interruption due to the change in the amount of light.

[0071] Meanwhile, a direction that is further away from light 100 for a vehicle in the beam pattern is defined as the long-range direction, and a direction opposite to the long-range direction is defined as the short-range direction.

[0072] Then the shielding area 162 can contain the long-range edge 162b, which touches an end of the passage area and forms an end line in the long-range direction of the beam pattern, and the short-range edge 162a, which is opposite the long-range edge 162b and forms an end line in the short-range direction of the beam pattern.

[0073] Furthermore, as the long-range edge 162b gradually moves further away from the short-range edge 162a when the mask unit 161 moves further away from the central section through which the optical axis of the light source part 110 passes, the size of the passage area 163 can gradually increase.

[0074] Furthermore, for example, the left / right widths of the short-range edges 162a formed in the multiple mask units 161 can be the same.

[0075] Since the positions and sizes of the long-distance edges 162b are the same and the positions and sizes of the short-distance edges 162a are changed on the mask units 161, the sizes of the passage areas 163 can be controlled.

[0076] Here, the ratio of the long-range edge 162b to the short-range edge 162a in the shielding area 162 can be greater than the ratio of an end line in the long-range direction to an end line in the short-range direction in the radiating pattern. For example, if the radiating pattern formed on the road surface 2 is rectangular, the left / right width of the long-range edge 162b can be greater than the left / right width of the opposite short-range edge 162a. That is, if the shape of the radiating pattern is rectangular, the passage area 163 can be trapezoidal.

[0077] According to the luminaire for a vehicle according to the first embodiment of the present disclosure, the uniformity of the amount of light supplied can be improved in all areas of the first lens part, and thus the uniformity of the beam pattern formed on the road surface by the lens arrangement can be improved.

[0078] According to the present disclosure, the uniformity of the radiation pattern formed on the road surface can be increased because the loss of light quantity is minimized, even when no additional light source is used. Second embodiment

[0079] Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13 to Fig. Figure 14 shows a second embodiment of the present disclosure. Fig. Figure 9 is a view that schematically represents a light for a vehicle according to a second embodiment of the present disclosure. Fig. Figure 10 is a view that schematically shows a light for a vehicle according to a comparative example in the present disclosure. Fig. Figure 11 is a side view showing a light for a vehicle according to a second embodiment of the present disclosure. Fig. Figure 12 is a side view showing a light for a vehicle according to a modification of the second embodiment of the present disclosure. Fig. Figure 13 is a side view showing a light for a vehicle according to a further modification of the second embodiment of the present disclosure. Fig. Figure 14 is a side view showing a light for a vehicle according to a further modification of the second embodiment of the present disclosure.

[0080] With reference to the Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13 to Fig. 14 The lamp 200 for a vehicle according to the second embodiment of the present disclosure comprises a light source part 210 and a lens arrangement 230. In addition, the lamp 200 for a vehicle according to the second embodiment of the present disclosure may further comprise a shielding part 260.

[0081] The light source part 210 is configured to generate and emit light. The lens assembly 230 is located on a front face of the light source part 210 and is configured to emit the light supplied by the light source part 210 onto a front face.

[0082] The light source part 210 can, for example, be configured to emit light in a direction pointing towards the road surface 2. The light source part 210 can comprise a light source 211 and a collimator 213. The light source 211 can, for example, be a light-emitting diode (hereinafter referred to as an "LED"), but the present disclosure is not limited to this. The collimator 213 can convert the light emitted by the light source 211 into light that is parallel to an optical axis and can direct the light to a first lens part 240.

[0083] The lens arrangement 230 has a first lens part 240 and a second lens part 250.

[0084] The first lens part 240 has several first microlenses 241 to which light is supplied from the light source part 210. The second lens part 250 has several second microlenses 251 configured to emit the light supplied by the first lens part 240.

[0085] For example, each of the first microlenses 241 can have an input surface 244 shaped to be convex in a direction opposite the light source part 210, and the input surfaces 244 of the multiple first microlenses 241 can be combined to form the input surface 244 of the entire first lens part 240. Furthermore, each of the second microlenses 251 can have an output surface 254 shaped to be convex in the direction opposite the road surface 2, and the output surfaces 254 of the plurality of second microlenses 251 can be combined to form the output surface 254 of the entire second lens part 250. Meanwhile, the shapes of the first microlenses 241 and the second microlenses 251 are not limited to the above description.

[0086] For example, the first lens part 240 can further comprise a first light-transmitting body 243, and the first light-transmitting body 243 can have the first microlens 241 on a surface opposite the light source part 210, and can be made of a material that transmits light.

[0087] Furthermore, the second lens part 250 can, for example, have a second light-transmitting body 253, and the second microlenses 251 can be formed on a surface that points in a direction opposite to that of the first light-transmitting body 243 in order to transmit light. In addition, the second light-transmitting body 253 can be configured to face the first light-transmitting body 243, with the shielding part 260 positioned between them.

[0088] The first transparent body 243 and the second transparent body 253 can serve as bodies for the integral formation of the first lens part 240 and the second lens part 250. However, the present disclosure is not limited to this, and if the first lens part 240 and the second lens part 250 are not integrally formed, at least one of the first transparent body 243 and the second transparent body 253 can be omitted.

[0089] If, meanwhile, an optical axis of the light emitted from the light source part 210 and supplied to the first lens part 240 is defined as a first optical axis AX1, and an optical axis of the light emitted from the second lens part 250 is defined as a second optical axis AX2, the lens arrangement 230 is inclined in a direction in which the second optical axis AX2 points towards the road surface 2 with respect to the first optical axis AX1. Here, the first optical axis AX1, which is an optical axis of the light supplied to the first lens part 240, can be an optical axis of the light emitted from the light source part 210.

[0090] Specifically, in the lens arrangement 230, the angle of the first optical axis AX1, which is the optical axis of the light supplied to the first lens part 240, and the angle of the second optical axis AX2, which is the optical axis of the light emitted from the second lens part 250, differ. For example, the first optical axis AX1 can extend parallel to the road surface 2, i.e., in the longitudinal direction of the vehicle 1, and the second optical axis AX2 can extend from the second lens part 250 to the road surface 2 in a direction inclined with respect to the first optical axis AX1.

[0091] Accordingly, the beam pattern on the road surface 2 cannot be formed by mounting the entire light source part 210 and the lens arrangement 230 so that they are inclined towards the road surface 2, but rather by only inclined the second optical axis AX2 of the second lens part 250 when the light is directed onto the inclined road surface 2 using the vehicle light 200 according to the present disclosure. In this case, the vehicle light 200 can be miniaturized because a size M1 of the lens arrangement 230 can be reduced.

[0092] Fig. Figure 10 presents a comparative example of the present disclosure. For the sake of simplicity, the reference numerals of the comparative example of the present disclosure are replaced by the same reference numerals of the one in Fig. 9 of the present disclosure. If the entire light source part 210 and the entire lens arrangement 230 are mounted so that they are inclined to the road surface 2 as in the comparative example, a dimension M2, in particular the height of the luminaire 200 upwards / downwards for a vehicle, can be increased, thereby widening the space occupied by the luminaire in the vehicle 1. Meanwhile, as in the Fig. In the embodiment shown in Figure 9 of the present disclosure, the lamp 200 for a vehicle can be miniaturized by tilting only the second optical axis AX2 of the second lens part 250, thereby reducing the space occupied by the lamp 200 for the vehicle 1.

[0093] The method for tilting the second optical axis AX2 of the second lens part 250 with respect to the first optical axis AX1 is not limited, and various methods can be used.

[0094] For example, with reference to Fig. 11 The lens arrangement 230 may be inclined with respect to a plane perpendicular to the first optical axis AX1 such that the second optical axis AX2 forms a specific angle with respect to the first optical axis AX1. In this case, the entirety of the first microlens 241, the first light-transmitting body 243, the shielding part 260, the second light-transmitting body 253, and the second microlens 251 may be arranged such that it is inclined with respect to the first optical axis AX1.

[0095] Accordingly, the second optical axis AX2, which is provided in the second lens part 250, can extend in a direction that is inclined with respect to the first optical axis AX1.

[0096] However, since the lens assembly 230 itself is inclined in this case, the angles of incidence of the incoming light can differ in all areas of the first lens part 240. In particular, the angles of incidence of an upper and a lower area of ​​the first lens part 240 can differ. Accordingly, the amount of light or resolution can differ in all areas of the lens assembly 230. Therefore, a measure to improve the optical performance is required by inclined the second optical axis AX2 relative to the first optical axis AX1 towards the road surface 2.

[0097] Accordingly, the present disclosure can solve the problem described above by deforming the shapes of the shielding part 260, the first microlens 241 and the second microlens 251.

[0098] For example, the shielding part 260 can be arranged between the first lens part 240 and the second lens part 250 and shield part of the light that is supplied from the first lens part 240 to the second lens part 250 to form a specific beam pattern on the road surface 2.

[0099] Furthermore, the shielding part 260 can contain a mask unit 261, and several mask units 261 can be provided such that they each correspond to the several second microlenses 251 to form a masking pattern for the formation of the beam pattern.

[0100] The multiple mask units 261 can be arranged so that they move away from the second microlens 251 as they approach the underside of the lens arrangement 230.

[0101] For example, the focal points of the second microlenses 251 can be positioned on the mask unit 261. Furthermore, due to the arrangement of the multiple mask units 261, the focal points of the second microlenses 251 can become longer as they extend towards the underside of the lens assembly 230.

[0102] Accordingly, the focal lengths of the second microlenses 251 can be increased downwards, so that differences in resolution in the areas caused by the inclination of the lens arrangement 230 can be compensated.

[0103] Furthermore, the radii of curvature of the multiple second microlenses 251 can increase downwards.

[0104] Accordingly, the focal lengths of the second microlenses 251 can be increased downwards, so that differences in resolution in the areas caused by the inclination of the lens arrangement 230 can be compensated for.

[0105] Meanwhile, with reference to Fig. 13 An input surface, which is a surface of the first light-transmitting body 243 opposite the light source part 210, is configured such that it is perpendicular to the first optical axis AX1. Furthermore, an output surface, which is a surface of the second light-transmitting body 253, pointing in a direction opposite to that opposite the light source part 210, can be inclined with respect to the input surface 244 so that it approaches the input surface 244 as it moves downwards.

[0106] Furthermore, the shielding part 260 can be configured to run parallel to the output surface 254.

[0107] In this case, the second optical axis AX2 of the second microlens 251 can be inclined with respect to the first optical axis AX1, while the lens assembly 230 itself is not inclined because one form of the second light transfer body 253 and one form of the coupling of the second light transfer body 253 have a trapezoidal shape, the size of which decreases downwards. That is, since the first lens part 240 is not inclined with respect to the first optical axis AX1, the optical loss due to the difference in the angle of incidence can be minimized.

[0108] Furthermore, the radii of curvature of the several first microlenses 241 can become smaller downwards.

[0109] Since in detail as in the Fig. In the embodiment shown in Figure 13, since the shielding part 260 and the second microlens 251 are inclined with respect to the first optical axis AX1, the distance between the first microlens 241 and the shielding part 260 can decrease downwards. This means that differences in the distances between the first microlenses 241 and the shielding part 260 occur in all regions of the lens arrangement 230, and thus different amounts of light can occur. Accordingly, the radii of curvature of the first microlenses 241 can gradually decrease downwards, and thus differences in the amounts of light due to the differences in the distances between the first microlenses 241 and the shielding part 260 can be compensated.

[0110] Meanwhile, with reference to Fig. 14 The shielding part 260 may be arranged closer to the first microlens 241 than to the second microlens 251. As in the embodiment shown as an example, the shielding part 260 can be attached directly to the first microlens 241, but the position of the shielding part 260 is not limited to this.

[0111] In this way, the focal lengths of the second microlenses 251 can be increased in all areas of the lens arrangement 230 if the shielding part 260 is arranged next to or attached to the first microlenses 241, thereby compensating for the resolution.

[0112] Furthermore, during the in Fig. In the embodiment shown in Figure 14, the radii of curvature of the several first microlenses 241 gradually become smaller as they move away from the central section through which the first optical axis AX1 passes when the lens arrangement 230 is viewed from the rear.

[0113] Specifically, a greater loss of light can occur when the light supplied from the light source 210 to the first lens part 240 is located further away from the central section. Consequently, a difference can arise between the light intensities of the beam patterns formed on the road surface 2. In the embodiment of the present disclosure, the amount of light in an outer area of ​​the first lens part 240 can be increased by making the radii of the first microlenses 241 larger when they are located further away from the central section, thereby compensating for the loss of light. Accordingly, the uniformity of the beam patterns formed on the road surface 2 can be improved.

[0114] When the lamp is used for a vehicle according to the second embodiment of the present disclosure, the size of the lens arrangement can be minimized, even if the lamp forms the beam pattern by emitting the light onto the road surface in such a way that the light is inclined, thereby minimizing the size of the lamp for a vehicle. Third embodiment

[0115] Fig. 15, Fig. 16, Fig. 17 to Fig. Figure 18 shows a third embodiment of the present disclosure. Fig. Figure 15 is a perspective exploded view showing a light for a vehicle according to a third embodiment of the present disclosure. Fig. Figure 16 is a view showing the light for a vehicle according to the third embodiment of the present disclosure, and is a view of the Fig. 15, viewed from a lateral side. Fig. Figure 17 shows an example of a mask unit located in a shielding body of the Fig. 16 trained. Fig. Figure 18 shows the radiation patterns projected onto a road surface.

[0116] With reference to the Fig. 15, Fig. 16, Fig. 17 to Fig. 18 The lamp 300 for a vehicle according to the third embodiment of the present disclosure comprises a light source part 310 and a lens arrangement 330. In addition, the lamp 300 for a vehicle according to the third embodiment of the present disclosure may further comprise a shielding part 360.

[0117] The light source part 310 is configured to generate and emit light. The lens assembly 330 is provided on a front face of the light source part 310 and is configured to emit the light supplied by the light source part 310 onto a front face.

[0118] For example, the light source part 310 can be configured to emit light in a direction towards the road surface 2. The light source part 310 can include a light source 311 and a collimator 313. The light source 311 can be, for example, a light-emitting diode (hereinafter referred to as an "LED"), but the present disclosure is not limited to this. The collimator 313 can convert the light emitted by the light source 311 into light that is parallel to an optical axis and can direct the light to a first lens part 340.

[0119] The lens arrangement 330 has a first lens part 340 and a second lens part 350.

[0120] The first lens part 340 has several first microlenses 341 to which light is supplied from the light source part 310. The second lens part 350 has several second microlenses 351 configured to emit the light supplied by the first lens part 340.

[0121] For example, each of the first microlenses 341 can have an input surface shaped to be convex in a direction opposite the light source part 310, and the input surfaces of the multiple first microlenses 341 can be combined to form an input surface of the entire first lens part 340. Furthermore, each of the second microlenses 351 can have an output surface shaped to be convex in the direction opposite the road surface 2, and the output surfaces of the plurality of second microlenses 351 can be combined to form an output surface of the entire second lens part 350. Meanwhile, the shapes of the first microlenses 341 and the second microlenses 351 are not limited to the above description.

[0122] For example, the first lens part 340 can further comprise a first light-transmitting body 343, and the first light-transmitting body 343 can have the first microlens 341 on a surface opposite the light source part 310, and can be made of a material that transmits light.

[0123] Furthermore, the second lens part 350 can, for example, have a second light-transmitting body 353, and the second microlenses 351 can be formed on a surface that faces in a direction opposite to that of the first light-transmitting body 343 in order to transmit light. In addition, the second light-transmitting body 353 can be configured to face the first light-transmitting body 343, with the shielding part 360 positioned between them.

[0124] The first transparent body 343 and the second transparent body 353 can serve as bodies for the integral formation of the first lens part 340 and the second lens part 350. However, the present disclosure is not limited to this, and if the first lens part 340 and the second lens part 350 are not integrally formed, at least one of the first transparent body 343 and the second transparent body 353 can be omitted.

[0125] The shielding part 360 can be located between the first lens part 340 and the second lens part 350 and shield part of the light that is supplied from the first lens part 340 to the second lens part 350 in order to form a specific beam pattern on the road surface 2.

[0126] Specifically, the shielding element 360 can contain a mask unit 361. Several mask units 361 can be provided such that they each correspond to the several second microlenses 351, and a masking pattern can be formed to create the beam pattern. That is, the mask units 361 can be provided such that they correspond to the second microlenses 351, each of which is arranged on an output side of the lens arrangement 330.

[0127] More precisely, each of the mask units 361 can have a shielding area 362 configured to block the light and a passage area 363 configured to allow the light to pass through it, with a shape corresponding to the masking pattern. Depending on the shape of the passage area 363, i.e., the shape of the masking pattern, the image of the beam pattern projected onto the road surface 2 can be modified. For example, the mask unit 361 can have the shape of a plate, and the specific beam pattern can be formed by masking the light in the shielding area 362.

[0128] Furthermore, the shielding part can be 360° movable to change (i.e. convert) the luminous pattern of the beam pattern formed on the road surface 2.

[0129] Since the masking pattern, which determines an image of the beam pattern projected onto the road surface 2, is formed in a shielding body 360a of the shielding element 360, the image of the beam pattern can be changed when the shielding body 360a is moved while the light from the luminaire 300 is emitted onto the road surface 2 for a vehicle. Accordingly, the beam pattern can be changed into a dynamic image. Furthermore, the shielding element 360 can make the beam pattern formed when the luminaire is switched on different each time the luminaire is switched on, because the shielding body 360a is designed to be movable.

[0130] Accordingly, according to the third embodiment of the present disclosure, an effect that attracts the attention of another driver can be achieved by implementing the ray pattern formed on the road surface 2 with the dynamic image, thereby improving visibility.

[0131] Furthermore, according to the third embodiment of the present disclosure, the intuitiveness of information acquisition can be improved if another driver or bystanders are informed about information such as the direction of travel of the vehicle 1 by implementing the beam pattern with the dynamic image.

[0132] Meanwhile, the luminaire 300 for a vehicle according to the third embodiment of the present disclosure can further comprise a drive element 370. The drive element 370 can provide drive power so that the shielding element 360 is movable.

[0133] Specifically, the drive part 370 can include a pair of rollers (i.e. a first and a second roller) 371 and 373 and an actuator 375.

[0134] The two rollers 371 and 373 can be configured to be spaced apart from each other in the upward / downward direction, and they can be configured so that part of one of their outer surfaces adheres to the shielding body 360a.

[0135] The pair of rollers 371 and 373 can be arranged parallel to each other and at an upper and a lower end of the shielding body 360a. However, the arrangements of the rollers 371 and 373 are not limited to this.

[0136] Specifically, the shielding body 360a can have the form of a wide plate and be made of a flexible material, such that its upper and lower ends are gripped by the pair of rollers 371 and 373. When the rollers 371 and 373 are driven and rotated, the shielding body 360a can be moved, and the image of the beam pattern can then be changed or transformed while the mask unit 361 formed in the shielding body 360a is moved.

[0137] The actuator 375 can be connected to a rotary shaft 375 of any pair of rollers 371 and 373 to rotate the rollers 371 and 373, and the shielding body 360a can be configured to rotate together when the rollers 371 and 373 are rotated. For example, the actuator 375 can be driven automatically by a controller.

[0138] Simultaneously, the drive unit 370 can be configured to change the rotational speeds of the rollers 371 and 373. Accordingly, the movement speed of the shielding body 360a can also be changed.

[0139] For example, the drive unit 370 can adjust the speed of the conversion of the dynamic image of the light pattern by adjusting the rotational speed of the actuator 375. Furthermore, the drive unit 370 can be stopped or operated at a high speed or higher to achieve a static, constant lighting pattern.

[0140] Meanwhile, for example, the masking patterns formed in the multiple mask units 361 may have the same shape or image.

[0141] Specifically, the shapes of the passage areas 363 in the multiple mask units 361 can be the same. Accordingly, the focal points of all second microlenses 351 can form pairs with the mask units 361 that are provided with the same masking pattern image.

[0142] Then the curvatures of the multiple second microlenses 351 can be the same.

[0143] Furthermore, the focal points of the second microlenses 351 can be arranged on the shielding parts 360. In addition, the shielding parts 360 can be configured such that the shapes of the masking patterns of the mask units 361, which are located on the focal points of the multiple second microlenses 351 at any given time, are always the same when the actuator 375 is driven.

[0144] Accordingly, according to the third embodiment of the present disclosure, the images of the beam patterns projected by the multiple second microlenses 351 at any given time can be implemented such that they are the same.

[0145] Meanwhile, with reference to Fig. 15 and Fig. 16 the shielding part 360, as in the illustrated embodiment, has a rear part which is opposite the first microlens 341 with respect to the rollers 371 and 373 at any time, and a front part which is opposite the second microlens 351.

[0146] Furthermore, the mask unit 361, which is located at the focal point of the second microlens 351, can be located on the front part.

[0147] The following describes the conversion of the beam pattern by the lamp 300 for a vehicle according to the third embodiment of the present disclosure with reference to the Fig. 17 and Fig. 18 described. Fig. Figure 17 shows an example of the mask unit 361, which is formed in the shielding body 360a, and Fig. Figure 18 shows the beam pattern that is projected onto the road surface 2 by a second microlens 351.

[0148] When the roller pair 371 and 373 is rotated forwards or backwards by the actuator 375 (see directions R1 and R2 in Fig. 15), as in Fig. As shown in Figure 17, the mask units 361 can be moved in the upward / downward direction while the shielding body 360a is moved (see directions B1 and B2).

[0149] Accordingly, the beam pattern projected onto road surface 2 changes over time, as shown in Fig. Figure 18 illustrates this. For example, the beam pattern produced by the second microlens 351 can be changed successively over time, as shown in Fig. 18 shown.

[0150] However, the shape or image conversion shape of the masking pattern of the mask unit 361 according to the present disclosure is not limited to the embodiment shown.

[0151] According to the third embodiment of the present disclosure, the effect of attracting the attention of another driver can be improved by implementing the beam pattern formed on the roadway with the dynamic image, thereby improving visibility.

[0152] Furthermore, according to the third embodiment of the present disclosure, the intuitiveness of information acquisition can be improved if another driver or bystanders are informed about information such as the direction of travel of the vehicle by implementing the beam pattern with the dynamic image. Fourth embodiment

[0153] The Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. Figure 28 shows a fourth embodiment of the present disclosure. Fig. Figure 19 is a view showing an example in which a light for a vehicle is installed in a vehicle according to a fourth embodiment of the present disclosure. Fig. Figure 20 is a perspective view showing the light for a vehicle according to the fourth embodiment of the present disclosure. Fig. Figure 21 is a side cross-sectional view showing the light for a vehicle according to the fourth embodiment of the present disclosure. Fig. 22A shows a part of a first division area of ​​a lens arrangement according to the fourth embodiment of the present disclosure, and Fig. Figure 22B shows part of a fourth division area of ​​the lens arrangement according to the fourth embodiment of the present disclosure. Fig. Figure 23 is a side cross-sectional view showing a light for a vehicle according to a modification of the fourth embodiment of the present disclosure. Fig. 24A is an enlarged cross-sectional view showing a first division area of ​​the lens arrangement according to the fourth embodiment of the present disclosure, Fig. Figure 24B is an enlarged cross-sectional view showing a second division area of ​​the lens arrangement, and Fig. 24C is an enlarged cross-sectional view showing a fourth division area of ​​the lens arrangement. Fig. Figure 25 is a side cross-sectional view showing a light for a vehicle according to a further modification of the fourth embodiment of the present disclosure. Fig. Figure 26 is a perspective view showing a light for a vehicle according to a further modification of the second embodiment of the present disclosure. Fig. 27 is a side view showing the Fig. Figure 26 shows a light for a vehicle viewed from the side. Fig. Figure 28 is a view showing the operation of a lamp for a vehicle according to a further modification of the fourth embodiment of the present disclosure.

[0154] With reference to the Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 The lamp 400 for a vehicle according to the fourth embodiment of the present disclosure comprises a light source part 410 and a lens arrangement 430. In addition, the lamp 400 for a vehicle according to the fourth embodiment of the present disclosure may further comprise a shielding part 460.

[0155] The light source part 410 is configured to generate and emit light. The lens assembly 430 is provided on a front face of the light source part 410 and is configured to emit the light supplied by the light source part 410 onto a front face.

[0156] For example, the light source part 410 can be configured to emit light in a direction towards the road surface 2. The light source part 410 can include a light source 411 and a collimator 413. The light source 411 can be, for example, a light-emitting diode (hereinafter referred to as "LED"), but the present disclosure is not limited to this. The collimator 413 can convert the light emitted by the light source 411 into light that is parallel to an optical axis AX1 and can feed the light into a first lens part 440.

[0157] The lens arrangement 430 has a first lens part 440 and a second lens part 450.

[0158] The first lens part 440 has several first microlenses 441 to which light from the light source part 410 is supplied. The second lens part 450 has several second microlenses 451 configured to emit the light supplied by the first lens part 440.

[0159] For example, each of the first microlenses 441 can have an input surface shaped to be convex in a direction opposite the light source part 410, and the input surfaces of the plurality of first microlenses 441 can be combined to form an input surface of the entire first lens part 440. Furthermore, each of the second microlenses 451 can have an output surface shaped to be convex in the direction facing the road surface 2, and the output surfaces of the plurality of second microlenses 451 can be combined to form an output surface of the entire second lens part 450. Meanwhile, the shapes of the first microlenses 441 and the second microlenses 451 are not limited to the above description.

[0160] For example, the first lens part 440 may further comprise a first transparent body 443, and the first transparent body 443 may have the first microlens 441 on a surface opposite the light source part 410, and may be made of a material that transmits light.

[0161] Furthermore, the second lens part 450 can, for example, have a second light-transmitting body 453, and the second microlenses 451 can be formed on a surface that points in a direction opposite to that of the first light-transmitting body 443 in order to transmit light. In addition, the second light-transmitting body 453 can be configured to face the first light-transmitting body 443, with the shielding part 460 positioned between them.

[0162] The first transparent body 443 and the second transparent body 453 can serve as bodies for the integral formation of the first lens part 440 and the second lens part 450. However, the present disclosure is not limited to this, and if the first lens part 440 and the second lens part 450 are not integrally formed, at least one of the first transparent body 443 and the second transparent body 453 can be omitted.

[0163] Meanwhile, the beam pattern “P” is subdivided into several pattern areas P1, P2, P3 and P4 according to the distance from the lamp 400 for a vehicle, and the lens arrangement 430 is subdivided into several division areas D1, D2, D3 and D4, each corresponding to the several pattern areas.

[0164] Furthermore, the focal lengths of the second microlenses 451, which are provided in the division areas corresponding to the pattern areas, can be increased if the distances of the pattern areas from the lamp 400 for a vehicle become larger.

[0165] Furthermore, the curvatures of the second microlenses 451, which are provided in the division areas corresponding to the pattern areas, can become smaller if the distances of the pattern areas from the luminaire 400 for a vehicle become larger.

[0166] If a direction that is farther from the luminaire in the beam pattern is defined as the long-distance direction, and a direction opposite to the long-distance direction is defined as the short-distance direction, the curvatures of the second microlenses 451 of the division area corresponding to the multiple patterns of the beam pattern “P” can become smaller as the pattern areas move in the long-distance direction.

[0167] Furthermore, the thicknesses of the second microlenses 451, which are provided in the division areas corresponding to the pattern areas, can increase if the distances of the pattern areas from the luminaire 400 for a vehicle increase. That is, the thicknesses of the second microlenses 451 of the division areas can increase if the multitude of pattern areas of the beam pattern "P" extends towards the greater distance.

[0168] Then, for example, the first microlenses 441 and the second microlenses 451, which are located in the same areas, can have the same width above / below within a machining defect range. However, the widths of the first microlenses 441 and the second microlenses 451 are not limited to the above description.

[0169] If the curvature of the second microlens 451 decreases, the focal lengths of the second microlens 451 can increase. Furthermore, the focal lengths of the second microlens 451 can increase if the thickness of the second microlens 451 increases. As the focal lengths increase, the light intensities become higher and the fields of view (FOVs) decrease.

[0170] In this way, according to the present disclosure, it can be achieved that the focal lengths become longer when the distances from the lamp 400 for a vehicle increase, and thus the light intensities of the pattern areas formed in the long-range direction can be increased. That is to say, according to the present disclosure, the first microlenses 441 and the second microlenses 451 can be designed separately for the division areas in order to realize an optical system with an optimized field of view and an optimized light intensity.

[0171] Accordingly, the optical uniformity of the radiation pattern “P” emitted onto the road surface 2 can be improved according to the present disclosure.

[0172] For example, according to the fourth embodiment of the present disclosure, the multiple division areas can be arranged in quadrants obtained by subdividing the lens arrangement 430 with respect to the optical axis AX1 of the light source part 410 (see Fig. 19, Fig. 20, Fig. 21 to Fig. 22).

[0173] Furthermore, the multiple division areas D1, D2, D3 and D4 can be configured such that a pattern area whose distance from the light 400 increases for a vehicle when it runs counterclockwise with respect to the division area D1, which corresponds to a pattern area whose distance from the light 400 decreases for a vehicle.

[0174] Specifically, the lens arrangement 430 can have a first division area D1, a second division area D2, a third division area D3, and a fourth division area D4, arranged sequentially in a counterclockwise direction. Here, the first division area D1 can be a division area corresponding to the first sample area P1, which is a sample area closest to the luminaire 400 for a vehicle. Furthermore, the first to fourth division areas D1 to D4 can, for example, be of the same size.

[0175] Furthermore, the light pattern "P" can have a first pattern area P1, corresponding to the first sub-area D1, a second pattern area P2, corresponding to the second sub-area D2, a third pattern area P3, corresponding to the third sub-area D3, and a fourth pattern area P4, corresponding to the fourth sub-area D4. The distance from the luminaire 400 for a vehicle can increase from the first pattern area P1 to the fourth pattern area P4.

[0176] The first division area D1 is on a lower side of the in Fig. The lens arrangement 430 is arranged on the side surface shown in section 21, and the fourth division area D4 is arranged on an upper side of it. Fig. 22A shows a part of the first division area D1 of the lens arrangement 430 according to the fourth embodiment of the present disclosure, and Fig. 22B shows a part of the fourth division area D4 of the lens arrangement 430 according to the fourth embodiment of the present disclosure.

[0177] With reference to Fig. 21 to Fig. 22. The curvatures of the second microlenses 451 can become smaller and the focal lengths of the second microlenses 451 can become larger as they extend from the first division area D1 to the fourth division area D4. Accordingly, the brightness of the first to fourth sample areas P1 to P4 can become uniform.

[0178] Meanwhile, with reference to the Fig. 23 and Fig. 24 the curvatures of the first microlenses 441, which are provided in the division areas corresponding to the pattern areas, become smaller when the distances of the pattern areas from the luminaire 400 for a vehicle become larger.

[0179] If the curvatures of the first microlenses 441 increase, the amount of light supplied through the first microlenses 441 can be increased. Accordingly, the amount of light in the division area corresponding to the pattern area arranged in the long-range direction can be increased, and thus the brightness of the pattern area arranged in the long-range direction can be increased.

[0180] However, the curvatures of the first microlenses 441 of the division area are not limited to this, and as in the Fig. In the embodiment shown in Figure 25, the curvatures of the first microlenses 441 in the division regions can be the same. For example, the curvatures of the first microlenses 441 can be the same if the optical uniformity is sufficiently improved due to the thicknesses or curvatures of the second microlenses 451.

[0181] Meanwhile, with regard to the Fig. 23, Fig. 24 to Fig. 25 where an optical axis of the light emitted from the light source part 410 and supplied to the first lens part 440 is defined as a first optical axis AX1 and an optical axis of the light emitted from the second lens part 450 is defined as a second optical axis AX2, the lens arrangement 430 can extend in a direction in which the second optical axis AX2 is inclined towards a road surface with respect to the first optical axis AX1.

[0182] Specifically, in the lens arrangement 430, the angle of the first optical axis AX1, which is the optical axis of the light supplied to the first lens part 440, and the angle of the second optical axis AX2, which is the optical axis of the light emitted from the second lens part 450, differ. For example, the first optical axis AX1 can extend parallel to the road surface 2, i.e., in the longitudinal direction of the vehicle 1, and the second optical axis AX2 can extend from the second lens part 450 towards the road surface 2 in a direction inclined with respect to the first optical axis AX1.

[0183] Accordingly, the beam pattern “P” on the road surface 2 cannot be formed by mounting the entire light source part 410 and the lens assembly 430 so that they are inclined towards the road surface 2, but rather by inclined only the second optical axis AX2 of the second lens part 450 when the light is directed onto the inclined road surface 2 using the vehicle light 400 according to the present disclosure. In this case, compared to a case in which the light source part 410 and the entire lens assembly 430 are inclined towards the road surface 2, the height of the lens assembly 430 can be reduced, thereby miniaturizing the vehicle light 400.

[0184] Fig. 24A represents the first division area D1, Fig. 24B represents the second division area D2 and Fig. 24C represents the fourth division area D4. As in the Fig. As shown in Figures 24A to 24C, the size of an acute angle under the angles formed by the first optical axis AX1 and the second optical axis AX2 in the corresponding division areas becomes smaller when the distances of the pattern areas from the lamp 400 for a vehicle become larger.

[0185] Specifically, the inclination of the second optical axis AX2 relative to the first optical axis AX1 can decrease in the division regions if the pattern regions are formed in the long-distance direction. In other words, if the pattern regions are formed in the long-distance direction, the second optical axis AX2 can gradually become more parallel to the first optical axis AX1 in the division regions.

[0186] The method for tilting the second optical axis AX2 of the second lens part 450 with respect to the first optical axis AX1 is not restricted, and various methods can be used.

[0187] For example, the second lens part 450 can further comprise the second transparent body 453, and the second transparent body 453 can have the second microlenses 451 on a surface that points in a direction opposite to that opposite to the light source part 410 in order to transmit light. Furthermore, the second microlenses 451 in the second transparent body 453 can be arranged such that the thickness direction of the second microlenses 451 is inclined with respect to the first optical axis AX1.

[0188] Accordingly, the second optical axis AX2, which is provided in the second lens part 450, can extend in a direction that is inclined with respect to the first optical axis AX1.

[0189] Meanwhile, the luminaire 400 can be used for a vehicle according to the fourth embodiment of the present disclosure (see Fig. 26, Fig. 27 to Fig. 28) also have a propulsion shielding unit 470.

[0190] The drive shielding unit 470 can have a rotatable shield 471. The rotatable shield 471 can be arranged between the light source part 410 and the lens assembly 430. Furthermore, the rotatable shield 471 can pass through an opening 472, which has a size corresponding to one of the several division areas, and can be configured to be rotatable.

[0191] Specifically, the rotatable shield 471 can have a disc shape that is perpendicular to the optical axis of the light source part 410. Furthermore, the drive shield unit 470 can include a drive motor 475, which provides drive power, and transmission gears 473 that are connected to a drive shaft 476 of the drive motor 475 and mesh with gears formed on a circumference of the rotatable shield 471. In addition, the drive shield unit can also include a drive frame 477 on which the drive motor 475 is mounted.

[0192] When the drive motor 475 is driven, the transmission gear 473 connected to the drive shaft 476 can be rotated, and then the rotatable shield 471, which engages with the transmission gear 473, can be rotated. The light supplied by the light source part 410 can pass through the opening 472 of the rotatable shield 471 and be projected onto a front surface, and the light can be shielded in areas other than the opening 472. The position of the opening 472 can be changed when the rotatable shield 471 is rotated. Accordingly, among the areas of the lens arrangement 430, one area into which the light from the light source part 410 is supplied is also changed.

[0193] In this way, the drive shielding unit 470 can be configured to convert the luminous pattern of the beam pattern “P” by changing the position of the aperture 472 by rotating the rotary shutter 471.

[0194] For example, the drive shielding unit 470 can rotate the rotatable shielding 471 so that the opening 472 corresponds successively to the first to fourth division areas D1 to D4. (See Fig. 28).

[0195] Furthermore, the drive motor 475 can, for example, adjust the rotational speed of the rotatable shield 471 and rotate the rotatable shield 471 intermittently or continuously. If the rotatable shield 471 is rotated intermittently, the first to fourth pattern regions P1 to P4 can be executed sequentially. If the rotatable shield 471 is rotated continuously, the beam pattern P can generate a dynamic image. If the rotatable shield 471 is rotated rapidly at a certain speed or higher, all first to fourth pattern regions P1 to P4 are executed simultaneously, thus generating a static image.

[0196] The lamp for a vehicle according to the fourth embodiment of the present disclosure can be designed such that the focal lengths become larger when the distances of the pattern areas from the lamp for a vehicle become larger, thereby increasing the intensity of the pattern area formed in the long-distance direction.

[0197] This means that, according to the fourth embodiment of the present disclosure, the lens arrangements for the division areas can be designed separately in order to realize an optical system with an optimized field of view and optimized light intensity. Accordingly, the optical uniformity of the beam pattern emitted onto the road surface can be improved according to the present disclosure.

[0198] According to the present disclosure, the effect of attracting the attention of another driver can be improved by implementing the beam pattern formed on the roadway with the dynamic image, thereby improving visibility.

[0199] Furthermore, according to the present disclosure, the intuitiveness of information acquisition can be improved if another driver or persons in the vicinity are informed about information such as the direction of travel of the vehicle by implementing the beam pattern with the dynamic image.

[0200] Although the specific embodiments of the present disclosure have been described so far, the spirit and scope of the present disclosure are not limited to the specific embodiments and can be corrected and modified in various ways by a person skilled in the art in the field to which the present disclosure relates, without changing the essence of the present disclosure claimed in the claims.

Claims

[1] Lamp (300) for a vehicle (1) comprising: a light source (311) configured to emit light; a lens arrangement (330) which is provided on a front side of the light source (311) and comprises: a first lens (340) comprising several first microlenses (341) configured to receive and transmit the light emitted by the light source (311); a second lens (350) comprising several second microlenses (351) configured to transmit the light transmitted by the first lens (340); and a shield (360) that is positioned and configured between the first lens (340) and the second lens (350): to shield part of the light transmitted by the first lens (340) in order to form a beam pattern on a road surface (2) in front of the vehicle (1), and to modify an image of the beam pattern projected onto the road surface (2), wherein the shielding has (360): a shielding body (360a); and several mask units (361) arranged on the shielding body (360a) and each correspond to the multiple second microlenses (351) and have a masking pattern for forming the beam pattern; and wherein the luminaire (300) further comprises a drive element (370) configured to provide drive energy for moving the shield (360), wherein: the drive part (370) has: a first roller (371) and a second roller (373) which are spaced apart vertically and have an outer surface which engages with the shielding body (360a); and an actuator (375) which is connected to a rotating shaft (372) of the first roller (371) and configured to rotate the first roller (371), and the shielding body (360a) is configured to rotate together with the first roller (371) or the second roller (373) when the first roller (371) is rotated. [2] Luminaire (300) according to claim 1, wherein each of the mask units (361) comprises: a shielding area (362) configured to shield the light; and a passage area (363) configured to allow light to pass through and having a shape that corresponds to the masking pattern. [3] Luminaire (300) according to claim 1, wherein the first roller (371) and the second roller (373) are arranged parallel to each other. [4] Luminaire (300) according to claim 1, wherein the drive part (370) is configured to change the rotational speed of the first roller (371) or the second roller (373). [5] Luminaire (300) according to claim 1, wherein the multiple masking patterns have the same shape. [6] Luminaire (300) according to claim 1, wherein: a focal point of the second microlens (351) is arranged on the shield (360), and the shielding (360) is configured such that the shapes of the masking patterns of the mask units (361) located at the focal points of the multiple second microlenses (351) are always the same when the actuator (375) is driven. [7] Luminaire (300) according to claim 6, wherein: the shield (360) has a rear part opposite the first microlens (341) and a front part opposite the second microlens (351), and the mask unit (361) is located on the front part of the shield (360). [8] Luminaire (300) according to claim 1, wherein the multiple second microlenses (351) have the same curvature.

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