Lamp for vehicle

Abstract

The present disclosure provides a lamp for a vehicle, the lamp including: a light incident portion mounted relatively forward based on a propagation direction of light emitted from a light source mounted in the lamp for a vehicle, the light incident portion configured to receive the light emitted from the light source, and to transmit the received light to the light incident portion; the light incident part is provided with a plurality of patterns formed on an incident surface; and a light emitting portion configured to allow the light, which has passed through the light incident portion, to propagate forward to the outside while passing through the light emitting portion, the light emitting portion having a plurality of facets formed on an exit surface.

Description

Technical Field

[0001] This disclosure relates to a lamp for a vehicle, and more specifically, to a lamp for a vehicle in which a plurality of patterns are formed on the incident surface of an incident portion formed on a lens mounted in the lamp for a vehicle to improve the uniformity of light emitted through an emitting portion and to adjust the transmittance of light emitted from the edge of the emitting surface formed on the emitting portion to effectively and precisely reduce glare. Background Technology

[0002] The vehicle is equipped with headlights for nighttime driving.

[0003] The headlights are designed to illuminate the vehicle's path by emitting light forward at night. The headlights are configured to illuminate a position approximately 100 meters ahead of the vehicle.

[0004] According to predetermined standards, the distance and range of light emitted from headlights vary from country to country.

[0005] In related technologies, headlights are typically manufactured in four ways.

[0006] In one approach, light emitted from a light source passes through an aspherical lens and is then reflected by a reflective surface to compensate for light lost from the light source, thereby improving luminous efficiency.

[0007] In another method, light emitted from the light source is reflected by an elliptical reflective surface. Part of the light propagates toward the focal point where the light shield is located, while the rest is blocked, causing the light to propagate back toward the position in front of the vehicle through the projection lens.

[0008] In another approach, light emitted from the light source is reflected by a parabolic reflective surface and propagates towards a position in front of the vehicle. Finally, in yet another approach, light emitted from the light source passes through an aspherical lens and propagates towards a position in front of the vehicle.

[0009] Regarding the structure of a headlight in the related technology that emits light toward the front of the vehicle through an aspherical lens with a smooth shape, it is necessary to study technologies related to reducing light loss, improving light uniformity, reducing glare caused by lamps used in vehicles, and improving the performance of the optical system. Summary of the Invention

[0010] The purpose of this disclosure is to provide a lamp for a vehicle, wherein multiple patterns are formed on the incident surface of the light-incident portion formed on the lens of the lamp for the vehicle, thereby improving the uniformity of light emitted through the light-emitting portion and adjusting the transmittance of light emitted from the edge of the light-emitting surface formed on the light-emitting portion, thereby effectively and precisely reducing glare.

[0011] To achieve the above objectives, this disclosure provides a lamp for a vehicle, the lamp comprising: a light-incident section mounted forward relative to the direction of propagation of light emitted from a light source mounted in the lamp for the vehicle, the light-incident section being configured to receive the light emitted from the light source, and the light-incident section having a plurality of patterns formed on an incident surface; and a light-exiting section configured to allow light that has passed through the light-incident section to propagate forward outward while passing through the light-exiting section, the light-exiting section having a plurality of small facets formed on an exiting surface.

[0012] In this case, the plurality of patterns formed on the incident surface can be composed of a grid pattern formed along the height and width directions of the incident portion.

[0013] Furthermore, the grid pattern can be arranged at intersections without overlapping with the small planes formed on the emitting surface in the direction of light propagation.

[0014] Furthermore, the plurality of patterns formed on the incident surface can be composed of oblique line patterns formed along the oblique line direction of the incident light portion.

[0015] Furthermore, the diagonal pattern can be formed to curve inward.

[0016] Furthermore, the plurality of patterns formed on the incident surface can be formed as circular or elliptical patterns.

[0017] In addition, the plurality of patterns formed on the incident surface can be formed as triangular patterns.

[0018] Furthermore, the plurality of patterns formed on the incident surface can be formed as hexagonal patterns.

[0019] Furthermore, the plurality of patterns formed on the incident surface can be formed as octagonal patterns.

[0020] Furthermore, the plate surface on which the patterned incident surface is formed can be formed as curved.

[0021] Furthermore, the stepped portions that are recessed inward along the direction of light propagation can be provided at multiple points on the light-incident portion and spaced apart from each other at predetermined intervals along the width direction of the light-incident portion.

[0022] Furthermore, a light transmittance reducing member configured to reduce light transmittance may be provided in the edge region of a portion of the small plane provided on the light-emitting surface of the light-emitting part.

[0023] Additionally, the light transmittance reducing member can be configured as an edge portion pad printed in at least a portion of the edge region of the plane.

[0024] In addition, the luminaire may also include a connecting member disposed between the light-incident portion and the light-emitting portion, such that the light-incident portion and the light-emitting portion are connected to each other by means of a plate surface fixed to the connecting member in opposite directions.

[0025] To achieve the above objectives, the outer periphery of the connecting member may be formed to be relatively larger than the outer periphery of the light-incident portion and the outer periphery of the light-exit portion, and protrude outward. The luminaire may also include a separate lens holder for accommodating and assembling the protruding outer periphery of the connecting member.

[0026] According to the present disclosure of the lamp for vehicles as described above, multiple patterns are formed on the incident surface of the light-incident portion formed on the lens of the lamp for vehicles, thereby improving the uniformity of light emitted through the light-emitting portion and adjusting the transmittance of light emitted from the edge of the light-emitting surface formed on the light-emitting portion, thereby effectively and precisely reducing glare. Attached Figure Description

[0027] Figure 1 This is a perspective view showing the structure of a lamp for a vehicle according to the present disclosure.

[0028] Figure 2 This is a perspective view showing the structure of the light-incident portion of a first embodiment of a lamp for a vehicle according to the present disclosure.

[0029] Figure 3 This is a top view showing the configuration structure of a small plane formed on the emitting surface of a lamp for a vehicle according to the present disclosure and a pattern formed on the incident surface.

[0030] Figure 4 This is a perspective view showing the structure of the light-incident portion of a second embodiment of a lamp for a vehicle according to the present disclosure.

[0031] Figure 5 This is a perspective view showing the structure of the light-incident portion of a third embodiment of a lamp for a vehicle according to the present disclosure.

[0032] Figure 6 This is a perspective view showing the structure of the light-incident portion of a fourth embodiment of a lamp for a vehicle according to the present disclosure.

[0033] Figure 7 This is a perspective view showing the structure of the light-incident section of a fifth embodiment of a lamp for a vehicle according to the present disclosure.

[0034] Figure 8 This is a perspective view showing the structure of the light-incident section of a sixth embodiment of a lamp for a vehicle according to the present disclosure.

[0035] Figure 9 This is a perspective view showing the structure of the light-incident section of a seventh embodiment of a lamp for a vehicle according to the present disclosure.

[0036] Figure 10 This is a perspective view showing the structure of a small plane formed on the emitting surface of a lamp for a vehicle according to the present disclosure.

[0037] Figure 11 This is an exploded perspective view showing the exploded structure of a lamp for a vehicle according to the present disclosure. Detailed Implementation

[0038] In the following, a lamp for a vehicle according to an embodiment of the present disclosure will be described in more detail with reference to the accompanying drawings.

[0039] However, the spirit of this disclosure is not limited to the embodiments described herein, but can be implemented in various different forms. Within the scope of the spirit of this disclosure, one or more constituent elements in the embodiments can be selectively combined and substituted for use.

[0040] Furthermore, unless otherwise specifically and explicitly defined and stated, the terminology (including technical and scientific terms) used in the embodiments of this disclosure may be interpreted as having the meaning commonly understood by one of ordinary skill in the art to which this disclosure pertains. The meaning of commonly used terms, such as those defined in dictionaries, may be interpreted in light of the contextual meaning of related technologies.

[0041] Furthermore, the terminology used in the embodiments of this disclosure is for the purpose of explaining the embodiments and not for limiting the disclosure.

[0042] In this specification, unless otherwise specified, the singular form may also include the plural form. The expression "at least one (or one or more) of A, B, and C" may include one or more of all combinations that can be made by combining A, B, and C.

[0043] In addition, terms such as first, second, A, B, (a) and (b) may be used to describe the constituent elements of embodiments of this disclosure.

[0044] These terms are used only for the purpose of distinguishing one constituent element from another, and the nature, sequence, or order of the constituent elements is not limited by these terms.

[0045] Furthermore, when a component is described as being “connected,” “joined,” or “attached” to another component, a component may be directly connected, joined, or attached to another component, or may be connected, joined, or attached to another component through another component inserted therein.

[0046] Furthermore, the statement "one component is positioned above (above) or below (below) another component" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are positioned between the two components. The statement "above (above) or below (below)" can refer to the downward or upward direction of a component.

[0047] Figure 1 This is a perspective view showing the structure of a lamp for a vehicle according to the present disclosure. Figure 2 This is a perspective view showing the structure of the light-incident portion of a first embodiment of a lamp for a vehicle according to the present disclosure. Figure 3 This is a top view showing the configuration structure of the small planes formed on the emitting surface and the pattern formed on the incident surface of the luminaire for a vehicle according to the present disclosure. Figure 4 This is a perspective view showing the structure of the light-incident portion of a second embodiment of a lamp for a vehicle according to the present disclosure. Figure 5 This is a perspective view showing the structure of the light-incident portion of a third embodiment of a vehicle lamp according to the present disclosure. Figure 6 This is a perspective view showing the structure of the light-incident portion of a fourth embodiment of a vehicle lamp according to the present disclosure. Figure 7 This is a perspective view showing the structure of the light-incident section of a fifth embodiment of a vehicle lamp according to the present disclosure. Figure 8 This is a perspective view showing the structure of the light-incident section of a sixth embodiment of a vehicle lamp according to the present disclosure. Figure 9 This is a perspective view showing the structure of the light-incident portion of the seventh embodiment of the lamp for a vehicle according to the present disclosure. Figure 10 This is a perspective view showing the structure of a small plane formed on the emitting surface of a lamp for a vehicle according to the present disclosure. Figure 11 This is an exploded perspective view showing the exploded structure of a lamp for a vehicle according to the present disclosure.

[0048] like Figure 1 As shown, the vehicle lamp according to the present disclosure includes: a light-receiving section 100, which is mounted forward relative to the direction of light propagation emitted from a light source installed in the vehicle lamp, the light-receiving section 100 being configured to receive light emitted from the light source and having a plurality of patterns 111 formed on an incident surface 110; and a light-emitting section 200, which is configured to allow light that has passed through the light-receiving section 100 to propagate forward to the outside while passing through the light-emitting section 200, the light-emitting section 200 having a plurality of small planes 211 formed on an exiting surface 210.

[0049] The light-receiving part 100 refers to a component that receives light emitted from a light source installed in a lamp for a vehicle. The light-receiving part 100 is made of a material capable of transmitting light. A plurality of patterns 111 are formed on an incident surface 110, which is formed on the surface of the light-receiving part 100.

[0050] The pattern 111 formed on the incident surface 110 can improve the uniformity of light incident on the incident light section 100 and can improve the tactile uniformity of light emitted through the light emitting section 200, which will be described later.

[0051] Three methods are widely used to form patterns 111 on the incident surface 110. The first method is a pad printing method, which is simple and effective and can apply patterns to a three-dimensional surface. The first method uses a flexible silicone pad to transfer and print the pattern 111 onto the desired surface. The first method is advantageous in achieving a variety of patterns by using pads with various materials and sizes.

[0052] The second method is a laser processing method that uses a laser to provide the desired pattern. This method can form micron- and nanometer-scale patterns on the surface of optical components by adjusting the laser beam. This second method is advantageous in providing high precision and repeatability, and in its applicability to a wide variety of materials.

[0053] The third method is the nanocritical phenomenon method. This method uses heat and pressure to form nanoscale patterns. The advantage of this method is that by applying heat and pressure to the surface to be patterned, the pattern forms autonomously, resulting in high-resolution and high-density patterns.

[0054] Furthermore, stepped portions 120 that are recessed inward along the direction of light propagation are provided at multiple points on the light-incident portion 100 and are spaced apart from each other at predetermined intervals along the width direction of the light-incident portion 100.

[0055] The stepped portions 120 are spaced apart from each other at a predetermined interval along the width direction of the light-incident portion 100, so that when the light source is powered on, the light fixture for the vehicle is viewed from the front, giving the impression that the light fixture for the vehicle is divided in the vertical direction.

[0056] First Implementation Method

[0057] like Figure 2 As shown, the plurality of patterns 111 formed on the incident surface 110 of the light-incident portion 100 of the first embodiment of the lamp for a vehicle according to the present disclosure can be composed of a grid pattern 111a formed along the height direction and the width direction of the light-incident portion 100.

[0058] When multiple patterns 111 formed on the incident surface 110 are formed as a grid pattern 111a, it is effective that the grid pattern 111a is arranged at the intersection position without overlapping with the small plane 211 formed on the exit surface 210 in the direction of light propagation.

[0059] In addition, such as Figure 3 As shown, a plurality of patterns 111 formed on the incident surface 110 are arranged at intersecting positions without overlapping with the patterns defined by the small planes 211 formed on the exit surface 210, such that a pattern smaller in size than the pattern formed on the incident surface 110 and more numerous than the pattern formed on the incident surface 110 can be recognized.

[0060] To improve user satisfaction, the grid pattern 111a may be formed such that the degree to which the grid pattern 111a formed on the incident surface 110 intersects with the small plane 211 formed on the exit surface 210 is as desired.

[0061] The patterns formed on the incident surface 110 of the lamps for vehicles according to the second to seventh embodiments described below differ from the patterns on the incident surface 110 according to the first embodiment of this disclosure only in shape. The patterns formed on the incident surface 110 can be applied in the same manner, and the patterns defined by the facet 211 can be arranged at intersections without overlapping each other, and the degree of intersection can be adjusted.

[0062] Second Implementation Method

[0063] like Figure 4 As shown, according to the second embodiment of the lamp for a vehicle disclosed herein, a plurality of patterns 111 formed on the incident surface 110 may be composed of oblique line patterns 111b formed along the oblique line direction of the light incident portion 100.

[0064] When the pattern formed on the light-receiving part 100 is composed of a diagonal pattern 111b, when the lamp for the vehicle is viewed from the front, the diagonal pattern 111b is effectively set as the vertices of the grid pattern connecting the small plane 211 along the diagonal direction.

[0065] As described above, when multiple patterns 111 are composed of diagonal pattern 111b, the grid pattern of the small plane 211 formed on the emission surface 210 of the light-emitting part 200 matches the diagonal pattern 111b, thereby embodying aesthetics when the lamp for the vehicle is viewed from the front while power is applied to the light source.

[0066] Third Implementation Method

[0067] In addition, such as Figure 5As shown, according to the third embodiment of the lamp for a vehicle disclosed herein, the oblique line pattern 111b formed on the incident surface 110 can be formed to be curved inward.

[0068] When the diagonal pattern 111b is formed to curve inward, when the lamp for the vehicle is viewed from the front, it is effective that the vertex of the diagonal pattern 111b is located at the center of the edge of the grid pattern of the small plane 211, thereby achieving visual clarity.

[0069] Fourth Implementation Method

[0070] like Figure 6 As shown, according to the fourth embodiment of the lamp for a vehicle disclosed herein, the plurality of patterns 111 formed on the incident surface 110 can be formed as circular or elliptical patterns 111c.

[0071] When multiple patterns 111 formed on the incident surface 110 are formed as circular or elliptical patterns 111c, when the lamps for vehicles are viewed from the front, the center of the circular or elliptical pattern 111c overlaps with the vertices of the grid pattern defined by the facet 211, thereby achieving visual clarity.

[0072] Fifth Implementation Method

[0073] like Figure 7 As shown, according to the fifth embodiment of the lamp for a vehicle disclosed herein, the plurality of patterns 111 formed on the incident surface 110 can be formed as triangular patterns 111d.

[0074] When multiple patterns 111 formed on the incident surface 110 are formed into a triangular pattern 111d, when the lamp for the vehicle is viewed from the front, the center of the triangular pattern 111d overlaps with the vertex of the grid pattern defined by the facet 211, thereby achieving visual clarity.

[0075] Sixth Implementation Method

[0076] like Figure 8 As shown, according to the sixth embodiment of the lamp for a vehicle disclosed herein, the plurality of patterns 111 formed on the incident surface 110 can be formed as hexagonal patterns 111e.

[0077] When the multiple patterns 111 formed on the incident surface 110 are formed into hexagonal patterns 111e, when the lamps for the vehicle are viewed from the front, the center of the hexagonal pattern 111e overlaps with the vertices of the grid pattern defined by the facet 221, thereby achieving visual clarity.

[0078] Seventh Implementation Method

[0079] like Figure 9 As shown, according to the seventh embodiment of the lamp for a vehicle disclosed herein, the plurality of patterns 111 formed on the incident surface 110 can be formed as octagonal patterns 111f.

[0080] When the multiple patterns 111 formed on the incident surface 110 are formed into an octagonal pattern 111f, when the lamp for the vehicle is viewed from the front, the center of the octagonal pattern 111f overlaps with the vertex of the grid pattern defined by the facet 211, thereby achieving visual clarity.

[0081] Furthermore, the plate surface of the incident surface 110, which forms the pattern 111 of the first to seventh embodiments of the lamp for vehicles according to the present disclosure, is formed to be curved, so that the light emitted from the light source propagates forward in a state of certain concentration after passing through the light incident portion 100, thereby improving the uniformity of the light.

[0082] The light-emitting section 200 allows light that has passed through the light-incident section 100 to propagate forward and outward as it passes through the light-emitting section 200. Multiple small facets 211 are formed on the emission surface 210. The small facets 211 define a grid pattern on the emission surface 210 of the light-emitting section 200. The front surface of the small facets 211 protrudes forward.

[0083] In addition, such as Figure 10 As shown, a light transmittance reducing member can be installed in the edge region of at least a portion of the small plane 211 provided on the emission surface 210 of the light-emitting section 200 to reduce light transmittance. The light transmittance reducing member may include an edge portion pad 211a printed in the edge region of at least a portion of the small plane 211.

[0084] Edge portion pad 211a is printed on at least a portion of the edge region of the facet 211, thereby effectively and precisely reducing glare. Edge portion pad 211a with the user's desired light transmittance can be selected and printed by the user, thus limiting the light transmittance of edge portion pad 211a.

[0085] Furthermore, in the case of the lamps for vehicles according to this disclosure, an edge portion pad 211a with a light transmittance of 40% to 60% can be printed to reduce glare. As described above, the light transmittance of the edge portion pad 211a can be selectively changed as needed.

[0086] In addition, the vehicle lamp configured as described above may also include a connecting member 220, which is disposed between the light-incident portion 100 and the light-emitting portion 200, such that the light-incident portion 100 and the light-emitting portion 200 are connected to each other by means of a plate surface fixed to the connecting member 220 which is disposed in opposite directions.

[0087] The width and height of the connecting member 220 are relatively greater than the width and height of the light-incident part 100 and the light-exiting part 200, so that the outer peripheral surface of the connecting member 220 protrudes outward from the light-incident part 100 and the light-exiting part 200 toward the plate surface.

[0088] The width and height of the connecting member 220 are relatively greater than the width and height of the light-incident portion 100 and the width and height of the light-exit portion 200, and the connecting member 220 protrudes so that the connecting member 220 is placed on the lens holder 300 described later during the assembly of the lamp for a vehicle according to the present disclosure, thereby enabling the lens to be assembled quickly and accurately.

[0089] On the other hand, such as Figure 11 As shown, a vehicle having a lamp for a vehicle according to the present disclosure includes: a lamp for a vehicle having a light-incident portion 100 and a light-emitting portion 200; a lens holder 300 on which the lamp for a vehicle is assembled; a lens cover 400 assembled to the lens holder 300 to maintain the lamp for a vehicle in the state of being assembled to the lens holder 300; a side wall 500 connected to the lens holder 300 on which the lens cover 400 is assembled; a PCB 600 disposed in the side wall 500 and having a light source disposed thereon; a reflector 700 mounted on one side of the PCB 600 and configured to reflect light emitted from the light source; a heat sink 800 connected to one side of the PCB 600 and configured to quickly dissipate heat generated by the PCB 600; and a cooling fan 900 disposed on one side of the heat sink 800 and configured to cool the heat sink 800.

[0090] Furthermore, the outer periphery of the connecting member 220, which is longer, wider, and taller than the light-incident portion 100 and the light-exit portion 200 and protrudes outward, is mounted on the lens holder 300 along the direction of the plate surface, thereby enabling easy, accurate, and efficient assembly of lamps for vehicles.

[0091] According to the vehicle lamp of the present disclosure configured as described above, multiple patterns are formed on the incident surface of the light-incident portion formed on the lens of the vehicle lamp, thereby improving the uniformity of light emitted through the light-emitting portion and adjusting the transmittance of light emitted from the edge of the light-emitting surface formed on the light-emitting portion, thereby effectively and precisely reducing glare.

[0092] While embodiments achievable by this disclosure have been described above, these embodiments are illustrative only and are not intended to limit the scope of this disclosure. Those skilled in the art will understand that various modifications and applications not described above can be made to this disclosure without departing from its inherent characteristics. For example, individual constituent elements specifically described in the embodiments may be modified and then implemented. Furthermore, it should be understood that differences related to modifications and applications are included within the scope of this disclosure as defined by the appended claims.

[0093] Cross-references to related applications

[0094] This application claims priority and benefit to Korean Patent Application No. 10-2024-0130143, filed on September 25, 2024, with the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference.

Claims

1. A lamp for a vehicle, the lamp comprising: The light-incident portion is positioned to receive light propagating from the light source of the luminaire, and the light-incident portion includes an incident surface having a plurality of patterns; as well as The light-emitting section includes an emitting surface having multiple small planes, wherein the light emitted from the light source passes through the light-incident section and then propagates outward through the light-emitting section.

2. The lighting fixture according to claim 1, wherein, The plurality of patterns on the incident surface of the light-incident portion include a plurality of grid patterns arranged in the height and width directions of the light-incident portion.

3. The lighting fixture according to claim 2, wherein, The plurality of grid patterns are arranged at multiple intersections, without overlapping with the plurality of patterns of the plurality of small planes of the light-emitting surface of the light-emitting part in the direction of light propagation.

4. The lighting fixture according to claim 1, wherein, The plurality of patterns on the incident surface of the light-incident portion include a plurality of oblique line patterns arranged in the oblique line direction of the light-incident portion.

5. The lighting fixture according to claim 4, wherein, The multiple diagonal lines curve inward.

6. The lighting fixture according to claim 1, wherein, The plurality of patterns on the incident surface of the light-incident portion include a plurality of circular or elliptical patterns.

7. The lighting fixture according to claim 1, wherein, The plurality of patterns on the incident surface of the light-incident portion include a plurality of triangular patterns.

8. The lighting fixture according to claim 1, wherein, The plurality of patterns on the incident surface of the light-incident portion include a plurality of hexagonal patterns.

9. The lamp according to claim 1, wherein, The plurality of patterns on the incident surface of the light-incident portion include a plurality of octagonal patterns.

10. The lighting fixture according to claim 1, wherein, The incident surface of the light-incident section includes a curved plate surface.

11. The luminaire according to claim 1, wherein, The light-incident portion includes multiple stepped portions that are recessed inward in the direction of light propagation and spaced apart from each other in the width direction of the light-incident portion.

12. The luminaire according to claim 1, wherein, The light-emitting portion includes a light transmittance reducing member disposed at the edge region of at least some of the plurality of small planes of the light-emitting surface of the light-emitting portion and configured to reduce light transmittance.

13. The luminaire according to claim 12, wherein, The light transmittance reduction component includes an edge portion pad, which is printed in the edge region of at least some of the planes of the plurality of planes on the emission surface of the light-emitting portion.

14. The luminaire according to claim 1, further comprising a connecting member disposed between the light-incident portion and the light-emitting portion, and having a first plate surface and a second plate surface facing opposite directions and respectively connected to the light-incident portion and the light-emitting portion.

15. The luminaire according to claim 14, wherein, The connecting member has an outwardly protruding outer periphery, and the outer periphery of the connecting member is larger than the outer peripheries of the light-incident portion and the light-exit portion. The luminaire also includes a lens retainer, and the outer periphery of the connecting member is mounted on the lens retainer.

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