Vehicle lamp and vehicle with such a lamp
The vehicle lamp design addresses light emission issues in curved lamps by aligning optical axes with lens normals and using reflective/emission elements to direct light effectively, improving performance and reducing loss.
Patent Information
- Application Number
- DE202025107067
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-03-05
- Estimated Expiration
- 2035-11-30
AI Technical Summary
Curved vehicle lamps emit light laterally, leading to performance deterioration and light loss, as the light does not extend into the intended areas in front or behind the vehicle.
The lamp design includes multiple light sources arranged such that their optical axes intersect with the normal of the lens part's exit surface, featuring a curved section with varying degrees of curvature, and incorporates a light-collecting element and reflective/emission elements to guide light effectively.
The design ensures that light emitted from the curved areas spreads into the intended areas in front or behind the vehicle, enhancing performance and minimizing light loss.
Smart Images
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Abstract
Description
TECHNICAL AREA
[0001] The present disclosure relates to a vehicle lamp and a vehicle with such a lamp. BACKGROUND
[0002] The external appearance of lamps installed in vehicles has varied, as their aesthetic appeal has been considered important. For example, a design with a soft, curved shape has recently been applied to the lamp. However, the lamp's basic performance must be guaranteed even with this design. For instance, even with a curved lamp, the light must be emitted intensely into the area in front of or behind the vehicle.
[0003] In the case of a lamp that is curved according to the state of the art, the light emitted from a curved area spreads laterally instead of extending into the area in front of or behind the vehicle, which leads to the problem of a deterioration in the lamp's performance and the occurrence of a loss of light. SUMMARY
[0004] The present disclosure was made in an effort to provide a lamp to which a curved design is applied, wherein the lamp is configured to spread the light emitted from a curved area to an area located in front of or behind a vehicle, thereby improving the lamp's performance and minimizing light loss.
[0005] One aspect of the present disclosure provides for a vehicle lamp, wherein the lamp comprises: several light sources configured to emit light; and a lens part provided on one side of the several light sources and configured to allow the light emitted by the several light sources to enter the lens part, wherein the several light sources are arranged in one extension direction of the lens part and wherein at least some of the several light sources are provided such that an optical axis AX of the light source and a normal Z of a region of the lens part facing the light source intersect each other.
[0006] The lens part can have an exit surface from which the light emitted by the light source exits, and at least some of the multiple light sources can be provided such that the optical axis AX of the light source and the normal Z of the exit surface intersect in a region of the lens part facing the light source.
[0007] The lens part can have a curved section with a shape curved in the extension direction of the lens part, and the optical axes AX of at least some of the multiple light sources provided in a region facing the curved section can intersect the normal Z of the exit surface in a region of the curved section facing the light source.
[0008] The lens part may further comprise: a first extension section connected to a first side end of the curved section based on the extension direction of the lens part; and a second extension section connected to a second side end of the curved section based on the extension direction of the lens part, wherein a degree to which the curved section is curved in the extension direction of the lens part may be greater than i) a first degree to which the first extension section is curved in the extension direction of the lens part, and ii) a second degree to which the second extension section is curved in the extension direction of the lens part.
[0009] The optical axes AX of the multiple light sources provided in the area facing the curved section can intersect the normal Z of the exit surface in the area of the curved section facing the light source.
[0010] The length of the second extension section in the extension direction of the lens part may be longer than the length of the first extension section in the extension direction of the lens part, and the multiple light sources facing the curved section may be arranged such that the optical axis AX of the light source facing the curved section intersects the normal Z of the exit surface in the area of the curved section facing the light source in a state in which the optical axis AX is rotated with respect to the normal Z to the second extension section.
[0011] At least some of the multiple light sources facing the second extension section can be arranged such that the optical axis AX of the light source facing the second extension section runs parallel to the normal Z of the exit surface in a region of the second extension section facing the light source.
[0012] The optical axes AX of the multiple light sources facing the curved section can be arranged parallel to each other.
[0013] The degree to which the optical axes AX of the several light sources facing the curved section are rotated towards the second extension section can increase with decreasing distance to the second extension section.
[0014] The lamp may further comprise: a light-collecting element provided between the light source and the emission surface and configured to collect the light emitted by the light source, wherein the lens part comprises: a lens body element with a space configured to receive the light source and the light-collecting element; and an emission element provided on one side of the lens body element and configured to define the emission surface.
[0015] A reflective surface, which has the optical property of reflecting the light emitted by the light source, can be formed on at least part of an inner surface of the lens body element.
[0016] The emission element can be a light scattering element that has an optical property of scattering the light emitted by the light source.
[0017] At least one part of the light-collecting element can be provided spaced away from an inner surface of the lens body element.
[0018] The light-collecting element can have a shape in which the distance of the light-collecting element from the inner surface of the lens body element increases with increasing distance from the emission element.
[0019] At least one part of the light-collecting element can be permanently attached to an inner surface of the lens body element.
[0020] An entire area of the light-collecting element, which faces the inner surface of the lens body, can be provided to be connected to the inner surface of the lens body.
[0021] To fulfill the aforementioned task, another aspect of the present disclosure provides for a vehicle that has the vehicle lamp.
[0022] The lens part may have: a curved section with a curved shape in one extension direction of the lens part; a first extension section which is connected to a first side end of the curved section based on the extension direction of the lens part;and a second extension section which is connected to a second side end of the curved section based on the extension direction of the lens part, wherein the second extension section may be directed towards a front or rear of the vehicle, and the multiple light sources directed towards the curved section may be arranged such that the optical axis AX of the light source facing the curved section intersects the normal Z of an exit surface in a region of the curved section facing the light source in a state in which the optical axis AX is rotated with respect to the normal Z to the second extension section.
[0023] According to the present disclosure, the lamp with the curved design can be configured so that the light emitted from the curved area spreads into the area in front of or behind the vehicle, thereby improving the lamp's performance and minimizing light loss. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a perspective view of a vehicle lamp according to the present disclosure. Fig. Figure 2 is an enlarged view showing a periphery of a curved section of a lens part of the vehicle lamp according to the present disclosure. Fig. Figure 3 is a perspective view showing an example of a light source provided in the vehicle lamp according to the present disclosure. Fig. Figure 4 is an enlarged perspective view showing an example of a vehicle lamp according to the present disclosure. Fig. 5 is a view showing a cross-sectional structure of Fig. 4 represents. Fig. Figure 6 is an enlarged perspective view, which represents another example of a vehicle lamp according to the present disclosure. Fig. 7 is a view that shows a cross-sectional structure of Fig. 6 represents. Fig. Figure 8 is a schematic view of a vehicle according to the present disclosure. DETAILED DESCRIPTION
[0024] In the following, a vehicle lamp and a vehicle according to the present disclosure are described with reference to the drawings. VEHICLE LIGHT
[0025] Fig. Figure 1 is a perspective view of a vehicle lamp according to the present disclosure and Fig. Figure 2 is an enlarged view showing a periphery of a curved section of a lens part of the vehicle lamp according to the present disclosure. Fig. Figure 3 is a perspective view showing an example of a light source provided in the vehicle lamp according to the present disclosure.
[0026] Referring to Fig. According to the present disclosure, a vehicle lamp 10 (hereinafter referred to as "lamp") can have several light sources 100 configured to emit light and a lens part 200 provided on one side of the several light sources 100 and configured to allow the light emitted by the several light sources 100 to enter the lens part 200. More precisely, the several light sources 100 can be arranged such that they are spaced apart from one another in a direction of extension of the lens part 200. The light emitted by the light source 100 can enter the lens part 200 and then exit the lens part 200, thereby forming a predetermined light distribution pattern or having a predetermined function. For example, the lamp 10 according to the present disclosure can be a daytime running light (DRL) lamp.In addition to the DRL lamp, various types of lamps can be used as lamp 10 according to the present disclosure. In the present description, however, a region of the lens part 200, from which the light emitted by the light source 100 exits, is defined as the exit surface.
[0027] According to the present disclosure, at least some of the several light sources 100 provided in the lamp 10 can be arranged such that an optical axis AX of the light source 100 and a normal Z of a region of the lens part 200 facing the light source 100 intersect without being parallel to each other. More precisely, the lens part 200 can have an exit surface 200a from which the light emitted by the light source 100 exits. At least some of the several light sources 100 can be arranged such that the optical axis AX of the light source 100 and the normal Z of the exit surface 200a intersect in the region of the lens part 200 facing the light source 100.
[0028] As described above, the configuration in which the optical axis AX of the light source 100 and the normal Z of the exit surface 200a intersect in the region of the lens portion 200 facing the light source 100 is intended to allow the light emitted from the exit surface in a region of the lens portion 200 to propagate in a direction necessary for the lamp to function properly, thus enabling the lamp to fulfill its function according to the present disclosure. In the present description, however, the optical axis AX of the light source 100 can be defined as the central axis of a beam of light emitted by the light source 100. The optical axis AX of the light source 100 can also be defined as the optical path through which a light ray passes that is the brightest among the light rays emitted by the light source 100.
[0029] More precisely, according to the present disclosure, the lens part 200 can have a curved section 205 with a curved shape in one extension direction of the lens part.
[0030] In this case, according to the present disclosure, the optical axes AX of at least some of the multiple light sources 100, which are provided in a region facing the curved section 205, can be arranged such that they intersect the normals Z of the exit surface 200a in the region of the curved section 205 facing the light sources 100. In this case, the curvature properties of the curved section 205 can prevent the occurrence of a light loss from the lamp caused by the light emitted by the curved section 205 propagating in an undesired direction.
[0031] With further reference to Fig. In addition to the curved section 205, the lens part 200 can have further sections as described in sections 1 to 3. More precisely, the lens part 200 can also have a first extension section 210, which is connected to a first side end of the curved section 205 based on the extension direction of the lens part, and a second extension section 220, which is connected to a second side end of the curved section 205 based on the extension direction of the lens part.
[0032] The first extension section 210, the second extension section 220, and the curved section 205 can be distinguished by the degree to which the respective sections are curved. More precisely, the curved section 205 can be the most curved section. That is, the degree to which the curved section 205 is curved in the extension direction of the lens part 200 can be greater than i) the degree to which the first extension section 210 is curved in the extension direction of the lens part 200, and ii) the degree to which the second extension section 220 is curved in the extension direction of the lens part 200.
[0033] In particular, according to the present disclosure, the optical axes AX of the multiple light sources 100, which are provided in the region facing the curved section 205, can be arranged such that they intersect the normals Z of the exit surface 200a in the region of the curved section 205 facing the light sources 100. Since the curved section 205 is a section in which the degree of curvature of the curved section 205 is greatest in the lens part 200, as described above, a loss of light can occur most strongly in the curved section 205 due to the distortion of the direction in which the light is emitted from the curved section 205.Therefore, according to the present disclosure, the optical axis AX of the light source 100, which is provided in the area facing the curved section 205, and the normal Z of the exit surface 200a of the curved section 205 can be provided such that they intersect each other, thereby minimizing the aforementioned light loss.
[0034] According to the present disclosure, the length of the second extension section 220 can be longer in the extension direction of the lens part 200 than the length of the first extension section 210 in the extension direction of the lens part 200. In this case, according to the present disclosure, the multiple light sources 100 facing the curved section 205 can be configured such that the optical axis AX of the light source 100 facing the curved section 205 can intersect the normal Z of the emission surface 200a in the region of the curved section 205 facing the light source 100 in a state in which the optical axis AX is rotated with respect to the normal Z to the second extension section 220. In the lamp 10 according to the present disclosure, the second extension section 220 can be a principal light-emitting surface of the lamp 10 according to the present disclosure.Therefore, according to the present disclosure, the optical axis AX of the light source 100 facing the curved section 205 is biased towards the second extension section 220, so that the light emitted from the curved section 205 can propagate to the second extension section 220 of the main light-emitting surface. For example, the optical axes AX of the multiple light sources 100 facing the curved section 205 can be arranged parallel to each other. In another example, however, the degree to which the optical axes AX of the multiple light sources 100 facing the curved section 205 are rotated towards the second extension section 220 can increase as the distance to the second extension section 220 decreases.
[0035] However, according to the present disclosure, at least some of the several light sources 100 facing the second extension section 220 can be configured such that the optical axes AX of the light sources facing the second extension section 220 are arranged parallel to the normals Z of the exit surface 200a in the region of the second extension section 220 facing the light sources 100. For example, the several light sources 100 facing the second extension section 220 can each be configured such that the optical axis AX of the light source facing the second extension section 220 runs parallel to the normal Z of the exit surface 200a in the region of the second extension section 220 facing the light source 100.
[0036] Fig. Figure 4 is an enlarged perspective view showing an example of the vehicle lamp according to the present disclosure, and Fig. 5 is a view showing a cross-sectional structure of Fig. 4 represents. Fig. Figure 6 is an enlarged perspective view, which represents another example of the vehicle lamp according to the present disclosure, and Fig. 7 is a view that shows a cross-sectional structure of Fig. 6 represents.
[0037] With reference to Fig. According to the present disclosure, the lamp 10 can further comprise a light-collecting element 300, which is provided between the light source 100 and the emission surface 200a and is configured to collect the light emitted by the light source 100. Furthermore, the lens part 200 can comprise a lens body element 230 with a space configured to receive the light source 100 and the light-collecting element 300, and an emission element 240, which is provided on one side of the lens body element 230 and is configured to define the emission surface 200a. The lens body element 230 and the emission element 240 can extend over the curved section 205, the first extension section 210, and the second extension section 220.In this case, a reflective surface with the optical property of reflecting the light emitted by the light source 100 can be formed on at least a portion of an inner surface of the lens body 230. The reflective surface can, for example, be formed on the entire inner surface of the lens body 230.
[0038] In order to scatter the light emitted by the lens part 200 evenly outwards, the emission element 240 can, however, be or have a light scattering element with an optical property of scattering the light emitted by the light source 100.
[0039] In this case, as in Fig. 4 and Fig. As shown in Figure 5, according to an example in the present disclosure, at least a partial region of the light-collecting element 300 is provided to be spaced apart from the inner surface of the lens body element 230. More precisely, the light-collecting element 300 can have a shape in which the distance of the light-collecting element 300 from the inner surface of the lens body element 230 increases with increasing distance from the emission element 240 (i.e., with decreasing distance from the light source).
[0040] In contrast, as in Fig. 6 and Fig. As shown in Figure 7, according to another example in the present disclosure, at least a partial region of the light-collecting element 300 may be fixedly attached to the inner surface of the lens body element 230. More precisely, the entire region of the light-collecting element 300 facing the inner surface of the lens body 230 may be fixedly attached to the inner surface of the lens body 230. VEHICLE
[0041] Fig. Figure 8 is a schematic view of a vehicle according to the present disclosure.
[0042] A vehicle 1 according to the present disclosure may have the vehicle lamp 10. The description of the vehicle lamp according to the present disclosure, which refers to Fig. The description in paragraphs 1 to 7 can be applied unchanged to the description of the vehicle lamp provided in the vehicle according to the present disclosure.
[0043] Meanwhile, the lens part 200 of the lamp 10 provided in the vehicle 1 according to the present disclosure can have the curved section 205 having a shape curved in the extension direction of the lens part, the first extension section 210 which is connected to the first side end of the curved section 205 based on the extension direction of the lens part 200, and the second extension section 220 which is connected to the second side end of the curved section 205 based on the extension direction of the lens part 200.
[0044] Meanwhile, the lamp provided in the vehicle according to the present disclosure can be located at the front or rear of the vehicle 1, and the second extension section 220 of the lens part 200 can be directed towards the front or rear of the vehicle. In this case, the multiple light sources 100 facing the curved section 205 can be configured such that the optical axis AX of the light source 100 facing the curved section 205 can intersect the normal Z of the exit surface 200a in the region of the curved section 205 facing the light source 100 in the state in which the optical axis AX is rotated with respect to the normal Z towards the second extension section 220.
[0045] The present disclosure has been described with reference to the limited embodiments and the drawings, but is not limited thereto. The present disclosure can be implemented in various forms by those skilled in the art in the field to which it relates, within the technical spirit of the present disclosure and to the extent corresponding to the appended claims.
Claims
[1] Vehicle lamp, comprising: multiple light sources configured to emit light; and a lens part provided on one side of the multiple light sources and configured such that the light emitted by the multiple light sources enters the lens part, wherein the multiple light sources are arranged in one extension direction of the lens part, and wherein at least some of the multiple light sources are arranged such that an optical axis of the multiple light sources and a normal of a region of the lens part facing the multiple light sources intersect each other. [2] Lamp according to claim 1, wherein: the lens part has an exit surface from which the light emitted by the multiple light sources exits, and at least some of the multiple light sources are arranged such that the optical axis of the multiple light sources and the normal of the exit surface intersect in a region of the lens part facing the multiple light sources. [3] Lamp according to claim 2, wherein: the lens part has a curved section with a curved shape in one extension direction of the lens part, and several optical axes of at least some of the multiple light sources provided in a region facing the curved section intersect the normal of the exit surface in a region of the curved section facing the multiple light sources. [4] Lamp according to claim 3, wherein the lens part further comprises: a first extension section which is connected to a first side end of the curved section based on the extension direction of the lens part; and a second extension section which is connected to a second side end of the curved section based on the extension direction of the lens part, wherein a degree in which the curved section is curved in the extension direction of the lens part is greater than a first degree in which the first extension section is curved in the extension direction of the lens part, and a second degree in which the second extension section is curved in the extension direction of the lens part. [5] Lamp according to claim 4, wherein the multiple optical axes of the at least some of the multiple light sources provided in the region facing the curved section intersect the normal of the exit surface in the region of the curved section facing the multiple light sources. [6] Lamp according to claim 4 or 5, wherein: a length of the second extension section in the extension direction of the lens part is greater than that of the first extension section in the extension direction of the lens part, and the multiple light sources facing the curved section are arranged such that the optical axis of the multiple light sources facing the curved section intersects the normal of the exit surface in the area of the curved section facing the multiple light sources in a state in which the optical axis is rotated with respect to the normal to the second extension section. [7] Lamp according to one of claims 4 to 6, wherein at least some of the multiple light sources facing the second extension section are provided such that the optical axis of the multiple light sources facing the second extension section is parallel to the normal of the exit surface in a region of the second extension section facing the multiple light sources. [8] Lamp according to claim 6 or 7, wherein the multiple optical axes of at least some of the multiple light sources facing the curved section are arranged parallel to each other. [9] Lamp according to one of claims 6 to 8, wherein the number of degrees in which the multiple optical axes of the at least some of the multiple light sources provided facing the curved section are rotated towards the second extension section increases with decreasing distance from the second extension section. [10] Lamp according to any one of claims 2 to 9, further comprising a light collecting element provided between the multiple light sources and the exit surface and configured to collect the light emitted by the multiple light sources, the lens part has: a lens body element with a space configured to accommodate the multiple light sources and the light-collecting element; and an emission element that is provided on one side of the lens body element and configured to define the exit surface. [11] Lamp according to claim 10, wherein a reflective surface with an optical property of reflecting the light emitted by the multiple light sources is formed on at least a part of an inner surface of the lens body element. [12] Lamp according to claim 10 or 11, wherein the emission element has a light scattering element with an optical property of scattering the light emitted by the multiple light sources. [13] Lamp according to one of claims 10 to 12, wherein at least a partial area of the light collecting element is spaced away from an inner surface of the lens body element. [14] Lamp according to claim 13, wherein the light collecting element has a shape in which the distance of the light collecting element from the inner surface of the lens body element increases with increasing distance from the emission element. [15] Lamp according to one of claims 10 to 14, wherein at least a partial area of the light collecting element is attached to an inner surface of the lens body element. [16] Lamp according to claim 15, wherein an entire area of the light collecting element facing the inner surface of the lens body element is attached to the inner surface of the lens body element. [17] Vehicle comprising the vehicle lamp according to any one of claims 1 to 16. [18] Vehicle according to claim 17, wherein the lens part comprises: a curved section with a shape curved in the direction of extension of the lens part; a first extension section which is connected to a first side end of the curved section based on the extension direction of the lens part; and a second extension section which is connected to a second side end of the curved section based on the extension direction of the lens part, wherein the second extension section is directed towards the front or rear of the vehicle, and wherein the multiple light sources facing the curved section are provided such that the optical axis of the multiple light sources facing the curved section intersects the normal of an exit surface in a region of the curved section facing the multiple light sources in a state in which the optical axis is rotated with respect to the normal to the second extension section.