Vehicle lamp

Abstract

The utility model relates to a vehicle lamp, which comprises a light source part, a light emitting part and a control part, and is characterized in that the light source part comprises a plurality of light sources which are configured to generate light; a condensing lens portion disposed in front of the light source portion, corresponding to the plurality of light sources, and including a plurality of light emission surfaces from which the light is emitted; and a first emission lens portion disposed in front of the condenser lens portion, the first emission lens portion configured to emit the light incident from the plurality of light sources to form a plurality of light distribution patterns configured to overlap each other to form a high beam pattern, and the light emission surface is configured to form the light distribution pattern into a vertically asymmetric shape with respect to an optical axis.

Description

Technical Field

[0001] The present disclosure relates to a vehicle lamp. Background Art

[0002] Headlights play an important role in ensuring safe driving by forming low-beam or high-beam patterns to ensure forward visibility for drivers during nighttime driving. In recent years, as headlights have become increasingly slimmer, thin lenses with wide left-right shapes are being used in smart headlights, such as Intelligent Front Lighting Systems (IFS) and Adaptive Driving Beam (ADB) lamps, to prevent glare to drivers of vehicles ahead.

[0003] Generally, a projection-type optical system realizing a smart headlamp includes a combination of a primary optical system that collects and distributes light near a focal point and a secondary optical system that forms the focal point, light distribution pattern, etc. of the optical system.

[0004] In conventional smart headlamps, reflectors, silicon rod optics, and conventional condenser lenses serve as the primary optical system. However, the use of conventional reflectors presents heat resistance issues due to their miniaturization. Consequently, the heat sink and fan are arranged vertically relative to the light source, increasing the size of the lamp.

[0005] Furthermore, when silicon rod optics according to the prior art are used as the primary optical system, light collection efficiency is reduced in small lamps (lamp openings of 20 mm or less). Furthermore, when a conventional condenser lens is used as the primary optical system, the lens thickness increases, reducing its optical efficiency, as the horizontal and vertical focal points are the same.

[0006] Therefore, it is necessary to develop a technology that can realize a slim lamp by minimizing the volume while improving the light distribution performance and optical efficiency of the smart headlamp. Utility Model Content

[0007] This Summary is provided to introduce some concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[0008] In general terms, a vehicle lamp is provided herein, comprising: a light source portion, comprising a plurality of light sources configured to generate light; a focusing lens portion, wherein the focusing lens portion is arranged in front of the light source portion, corresponding to the plurality of light sources, and comprising a plurality of light emitting surfaces from which the light is emitted; and a first emitting lens portion, wherein the first emitting lens portion is arranged in front of the focusing lens portion, the first emitting lens portion being configured to emit the light incident from the plurality of light sources to form a plurality of light distribution patterns, the plurality of light distribution patterns being configured to overlap with each other to form a high beam pattern, and the light emitting surface being configured to form the light distribution pattern into a shape that is vertically asymmetric relative to the optical axis.

[0009] The virtual focal plane can be a virtual plane passing through a virtual focus, which is a focus formed behind the focusing lens portion when the optical path formed by the optical characteristics of the first emitting lens portion extends from the optical axis and is perpendicular to the optical axis. The virtual pattern can be a virtual optical pattern formed on the virtual focal plane through a virtual optical path, in which the emitted light as the light emitted from the first emitting lens portion extends to the rear side of the first emitting lens portion, and the virtual pattern can be formed asymmetrically in the vertical direction relative to the virtual focus.

[0010] The virtual pattern may be configured and shaped such that an upper area is smaller than a lower area relative to the virtual focus.

[0011] The virtual pattern may be configured to be formed symmetrically in a left-right direction with respect to the virtual focus.

[0012] The focusing lens portion may include a plurality of focusing lenses arranged along the left-right direction, each of the plurality of focusing lenses includes a plurality of unit lenses integrally formed and arranged along the left-right direction, and each of the plurality of unit lenses includes: the light emitting surface; and a light incident surface, the light incident surface corresponding to the light emitting surface, and the light emitted from the light source is incident on the light incident surface.

[0013] The light emitting surface may be configured as a curved surface convex toward the front, and may include a vertical curvature different from a horizontal curvature of the light emitting surface.

[0014] The vehicle lamp may include a second emitting lens portion, which is arranged in front of the first emitting lens portion and is formed into a second shape different from the first shape of the first emitting lens portion, and the second emitting lens portion is configured to bend backward from one end to the other end relative to the left and right direction.

[0015] The first emitting lens portion may include a plurality of optical lenses, which are arranged along the left-right direction and correspond to the plurality of focusing lenses, respectively, and each of the plurality of optical lenses includes: an incident surface into which the light is incident from the focusing lens; and an emitting surface, which is configured to emit the light incident into the incident surface to the second emitting lens portion, and the emitting surface is configured to bend backward from the other end to the one end relative to the left-right direction.

[0016] Each of the multiple optical lenses can be configured to form a virtual focus behind the corresponding focusing lens among the multiple focusing lenses, and a first distance between the vertical virtual focus and the incident surface of the optical lens can be greater than a second distance between the horizontal virtual focus and the incident surface of the optical lens.

[0017] The plurality of light sources may be arranged in a left-right direction and on the same plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings:

[0019] Figure 1 is a perspective view showing a vehicle lamp according to an embodiment of the present disclosure;

[0020] Figure 2 is a side view of a unit lens according to an embodiment of the present disclosure when viewed from the side;

[0021] Figure 3 is a plan view of a unit lens according to an embodiment of the present disclosure when viewed from above;

[0022] Figure 4 is a plan view of a vehicle lamp according to an embodiment of the present disclosure when viewed from above;

[0023] Figure 5 is a perspective view of a vehicle lamp according to an embodiment of the present disclosure, and is a view for describing a virtual focus and a virtual focal plane of a first emitting lens portion;

[0024] Figure 6 is a diagram showing a vertical virtual focus FV1 and a virtual focal plane according to optical characteristics of a first emitting lens section;

[0025] Figure 7 is a view showing a virtual vertical optical path in which emitted light extends toward the rear side of the first emitting lens portion and a vertical virtual pattern formed on a virtual focal plane by the virtual vertical optical path;

[0026] Figure 8 is a diagram showing a horizontal virtual focus FH1 and a virtual focal plane according to optical characteristics of the first emitting lens section;

[0027] Figure 9 is a view showing a virtual horizontal optical path in which emitted light extends toward the rear side of the first emitting lens portion and a horizontal virtual pattern formed on a virtual focal plane by the virtual horizontal optical path;

[0028] Figure 10A is a view showing a horizontal optical path of a unit lens according to an example of the present disclosure, and Figure 10B is a view showing a horizontal optical path when an optical path of a unit lens is viewed from above according to a comparative example of the present disclosure;

[0029] Figure 11A is a view showing a vertical optical path of a unit lens according to an example of the present disclosure, and Figure 11B is a view showing a vertical optical path when an optical path of a unit lens is viewed from above according to a comparative example of the present disclosure;

[0030] Figure 12A is an image showing a light distribution pattern when a unit lens according to an example of the present disclosure is used, and Figure 12B is an image showing a light distribution pattern when a unit lens according to a comparative example of the present disclosure is used; and

[0031] Figure 13 is an image showing a high beam pattern according to an embodiment of the present disclosure.

[0032] Throughout the drawings and detailed description, unless otherwise described or provided, the same or similar drawing reference numerals should be understood to refer to the same or similar elements, features, and structures. The drawings may not be drawn to scale, and the relative sizes, proportions, and depictions of elements in the drawings may be exaggerated for clarity, illustration, and convenience. DETAILED DESCRIPTION

[0033] The following detailed description is provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example and is not limited to those set forth herein, but can be changed as will be apparent after understanding the disclosure of the present application, except that the operations must occur in a specific order.

[0034] The features described herein may be embodied in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein are merely illustrative of some of the many possible ways to implement the methods, devices, and / or systems described herein, which will be apparent upon understanding the disclosure of this application.

[0035] The advantages and features of the present disclosure and the methods for achieving these advantages and features will become clear with reference to the embodiments described in detail below together with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed herein, but will be implemented in various forms. The embodiments of the present disclosure are provided to fully disclose the present disclosure, and those of ordinary skill in the art can fully understand the scope of the present disclosure. At the same time, the terms used in this specification are used to explain the embodiments, rather than to limit the present disclosure.

[0036] Terms such as first, second, A, B, (a), (b), etc. may be used herein to describe components. Each of these terms is not used to define the nature, order, or sequence of the corresponding component, but is only used to distinguish the corresponding component from other components. For example, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

[0037] Throughout the specification, when a component is described as being “connected to” or “coupled to” another component, it may be directly “connected to” or “coupled to” the other component, or one or more other components may be present in between. Conversely, when an element is described as being “directly connected to” or “directly coupled to” another element, there may be no other elements in between.

[0038] In the description of the embodiments, when any one element is described as being formed above or below another element, such description includes both a case where the two elements are formed in direct contact with each other and a case where the two elements are in indirect contact with each other with one or more other elements interposed therebetween. In addition, when an element is described as being formed above or below another element, such description may include a case where one element is formed on the upper side or the lower side relative to the other element.

[0039] The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that when used herein, the terms "include" and / or "comprise" specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0040] First, the embodiments described below are embodiments suitable for understanding the technical features of the vehicle lamp according to the present disclosure. However, the present disclosure is not limited to the embodiments described below, and the technical features of the present disclosure are not limited to the described embodiments, and various modifications can be made within the technical scope of the present disclosure.

[0041] Figure 1 is a perspective view showing a vehicle lamp according to an embodiment of the present disclosure, Figure 2 is a side view of a unit lens according to an embodiment of the present disclosure when viewed from the side, Figure 3 is a plan view of a unit lens according to an embodiment of the present disclosure when viewed from above, Figure 4 is a plan view of the vehicle lamp according to the embodiment of the present disclosure when viewed from above, and Figure 5 is a perspective view of a vehicle lamp according to an embodiment of the present disclosure, and is a view for describing a virtual focus and a virtual focal plane through a first emitting lens portion.

[0042] Figure 6 is a diagram showing a vertical virtual focus FV1 and a virtual focal plane according to the optical characteristics of the first emitting lens section, Figure 7 is a view showing a virtual vertical optical path of emitted light extending toward the rear side of the first emitting lens section and a vertical virtual pattern formed on a virtual focal plane by the virtual vertical optical path, Figure 8 is a view showing a horizontal virtual focus FH1 and a virtual focal plane according to the optical characteristics of the first emitting lens section, and Figure 9 is a view showing a virtual horizontal optical path of emitted light extending toward the rear side of the first emitting lens section and a horizontal virtual pattern formed on a virtual focal plane by the virtual horizontal optical path.

[0043] Figure 10A is a view showing a horizontal optical path of a unit lens according to an example of the present disclosure, Figure 10B is a view showing a horizontal optical path when an optical path of a unit lens is viewed from above according to a comparative example of the present disclosure, Figure 11A is a view showing a vertical optical path of a unit lens according to an example of the present disclosure, Figure 11B is a view showing a vertical optical path when an optical path of a unit lens is viewed from above according to a comparative example of the present disclosure, Figure 12A is an image showing a light distribution pattern when a unit lens according to an example of the present disclosure is used, Figure 12B is an image showing a light distribution pattern when a unit lens according to a comparative example of the present disclosure is used, and Figure 13 is an image showing a high beam pattern according to an embodiment of the present disclosure.

[0044] See also Figures 1 to 13The vehicle lamp 10 according to the embodiment of the present disclosure includes a light source portion 100 , a condenser lens portion 200 , and a first emitting lens portion 300 . Furthermore, the vehicle lamp 10 according to the embodiment of the present disclosure may further include a second emitting lens portion 400 .

[0045] Hereinafter, the direction in which light is emitted from the first emission lens unit 300 and the second emission lens unit 400 is referred to as the forward direction, the direction opposite to the forward direction is referred to as the backward direction, and the forward and backward directions are collectively referred to as the front-to-back direction "y." Furthermore, the direction perpendicular to the front-to-back direction "y" and parallel to the ground is referred to as the left-to-right direction "x." Furthermore, the direction perpendicular to the front-to-back direction "y" and the left-to-right direction "x" is referred to as the up-down direction "z" or the vertical direction "z."

[0046] The light source part 100 includes a plurality of light sources 110 that generate light.

[0047] Various elements or devices capable of emitting light may be used as the light source 110. For example, the light source 110 may be a light emitting diode (hereinafter, referred to as an LED), but the present disclosure is not limited thereto, and various lamps such as a laser diode, a light bulb, a halogen lamp, and a xenon lamp (HID) may be applied thereto.

[0048] The light source unit 100 may include a plurality of light sources 110. The number and arrangement of the light sources 110 may be determined based on the design specifications of the vehicle lamp 10. For example, the plurality of light sources 110 may be arranged along a left-right direction "x" and may be organized into a plurality of groups. The plurality of light sources 110 may be turned on or off in groups or individually. However, the arrangement and number of the plurality of light sources 110 are not limited to the illustrated embodiment.

[0049] The condensing lens part 200 may be disposed in front of the light source part 100. In addition, the condensing lens part 200 may include a plurality of light emitting surfaces 212 corresponding to the plurality of light sources 110 and emitting light.

[0050] The first emitting lens section 300 is disposed in front of the condensing lens section 200 and emits light incident from the plurality of light sources 110 to form a plurality of light distribution patterns. In addition, the plurality of light distribution patterns may overlap with each other to form a high beam pattern (see FIG. Figure 13 ).

[0051] For example, as in the illustrated embodiment, the plurality of light emitting surfaces 212 may be classified into a plurality of groups, and the first emitting lens section 300 may be formed as a lens structure separated into groups corresponding to the plurality of light emitting surfaces 212. However, the shapes of the condensing lens section 200 and the first emitting lens section 300 are not limited thereto.

[0052] Meanwhile, the second emitting lens section 400 may be disposed in front of the first emitting lens section 300 , and may be formed in a shape different from that of the first emitting lens section 300 .

[0053] Furthermore, the second transmitting lens unit 400 may be formed to bend backward from one end to the other along the left-right direction "x." For example, one end may be toward the center or inside of the vehicle, and the other end may be toward the outside. The direction and degree of curvature of the second transmitting lens unit 400 may be determined based on the exterior shape of the vehicle.

[0054] In detail, the second emission lens part 400 may include a lens body 410, a rear surface 411 into which light emitted from the first emission lens part 300 is incident, and a front surface 412 that emits the incident light. The front surface 412 and the rear surface 411 may be formed to be curved in the same direction.

[0055] Meanwhile, the light emitting surface 212 provided in the condensing lens part 200 according to an embodiment of the present disclosure may be formed such that a light distribution pattern is formed in a vertically asymmetric shape with respect to an optical axis.

[0056] In detail, according to an embodiment of the present disclosure, the first emission lens unit 300 may include an optical lens that forms a focus, and thus, the emitted light may form a light distribution pattern. In addition, according to an embodiment of the present disclosure, a desired light distribution pattern may be formed by correcting the optical path passing through the condensing lens unit 200 for converging the light emitted from the light source 110 during design.

[0057] In more detail, the diffusion angle of the emitted light, which is the light emitted from the first emission lens unit 300, can be adjusted by the optical characteristics of the light emission surface 212. Here, the optical characteristics of the light emission surface 212 refer to the refractive index, aspheric coefficient, curvature, etc. of the light emission surface 212. When designing the light emission surface 212, the optical characteristics of the light emission surface 212 can be adjusted to form a desired light distribution pattern in consideration of the optical path of the first emission lens unit 300.

[0058] For example, the light emitting surface 212 of the condensing lens portion 200 may be formed in an aspherical shape with different vertical and horizontal focal points.

[0059] Therefore, in an embodiment of the present disclosure, the shape of the light emitting surface 212 may be formed to form a diffusion angle of emitted light so that a plurality of light distribution patterns may satisfy design specifications, laws, light distribution performance, and the like.

[0060] Furthermore, according to the embodiments of the present disclosure, the focusing lens portion 200 can improve light focusing efficiency, and at the same time, the distortion caused by the curved shape of the second emitting lens portion 400 can be corrected by individually designing the plurality of light emitting surfaces 212. Therefore, the optical efficiency of the vehicle lamp 10 can be improved. The focusing lens portion 200 according to the embodiments of the present disclosure can design an individual light distribution pattern taking into account the exterior of the vehicle and the curvature of the second emitting lens portion 400 according to the exterior of the vehicle.

[0061] Meanwhile, the plurality of light sources 110 may be arranged in the left-right direction 'x' and may be arranged on the same plane.

[0062] In detail, according to an embodiment of the present disclosure, the light source 110, the condenser lens unit 200, the first emission lens unit 300, and the second emission lens unit 400 can be arranged along the front-to-back direction "y", and the light distribution patterns can be designed separately. Therefore, the light source 110 can be arranged along the left-right direction "x" and can be arranged on the same plane.

[0063] Therefore, a heat sink with multiple light sources 110 attached can be integrated. When using a reflector according to the prior art, the heat sink is located below the light source, so multiple light sources arranged horizontally or vertically may not be arranged on the same plane. Therefore, multiple light sources do not need to be mounted on a single heat sink, which increases the volume of the vehicle lamp.

[0064] According to an embodiment of the present disclosure, since a heat sink can be integrated, the volume of the vehicle lamp 10 can be minimized compared to the related art, and thus a slim lamp in the left-right direction “x” can be realized.

[0065] In this specification, the focal points formed behind the condenser lens section 200 when the optical path formed by the optical characteristics of the first transmitting lens section 300 is extended are referred to as virtual focal points FV1, FV2, FV3, FH1, FH2, and FH3, and a virtual plane passing through the focal points and perpendicular to the optical axis is referred to as a virtual focal plane. Furthermore, a virtual light pattern formed on the virtual focal plane by the virtual optical path of the transmitted light extending to the rear side of the first transmitting lens section 300 is defined as a virtual pattern.

[0066] In this case, the virtual pattern may be formed asymmetrically in the vertical direction “z” with respect to the virtual focal points FV1 , FV2 , and FV3 .

[0067] Specifically, for example, the virtual pattern may be formed such that the upper region (see FIG. Figure 7 A1 in the figure) is smaller than the lower area (see Figure 7Therefore, a light distribution pattern or a high beam pattern emitted by the first emitting lens portion 300 can be formed such that the upper area is larger than the lower area relative to the optical axis (see Figure 13 ).

[0068] Therefore, when implementing an intelligent headlamp in which various beam patterns are collected to form a high-beam pattern using the embodiments of the present disclosure, the desired individual beam patterns can be easily achieved. Here, the intelligent headlamp may be an intelligent front lighting system (IFS) or an adaptive driving beam (ADB) lamp that does not dazzle the driver of a preceding vehicle.

[0069] In addition, the virtual pattern may be formed bilaterally symmetrically with respect to the virtual focal points FH1, FH2, and FH3. Figure 9 , in the virtual pattern, the left area (see Figure 9 B1 in FIG) can be symmetrical to the right region (see FIG) relative to the virtual foci FH1, FH2 and FH3. Figure 9 B2 in FIG). Therefore, the light distribution patterns can overlap with each other, thereby improving the uniformity of the entire high beam pattern.

[0070] Hereinafter, detailed shapes of the condensing lens part 200 , the first emitting lens part 300 , and the second emitting lens part 400 will be described with reference to the illustrated embodiment, and thus, formation of a dummy pattern and a light distribution pattern will be described in detail.

[0071] Reference Figures 1 to 5 , the condenser lens portion 200 may further include a plurality of condenser lenses 210 arranged along the left-right direction "x". In addition, each of the plurality of condenser lenses 210 may include a plurality of unit lenses integrally formed and arranged along the left-right direction "x".

[0072] Here, each unit lens may include a light emission surface 212 and a light incident surface 211. The light incident surface 211 may correspond to the light emission surface 212, and light emitted from the light source 110 may be incident into the light incident surface 211.

[0073] Specifically, the unit lens may guide light incident from the light source 110 to the light incident surface 211 toward the first emission lens portion 300. That is, the unit lens may switch the optical path so that light emitted from the light source 110 to the light incident surface 211 faces the front side. For example, the unit lens may be a collimator.

[0074] Multiple unit lenses may be integrally formed along the left-right direction "x" to form a single condenser lens 210. Thus, multiple light incident surfaces 211 may be repeated along the left-right direction "x" on the rear surface of the single condenser lens 210, and multiple light emitting surfaces 212 may be repeated on the front surface thereof. The condenser lens 210 may be provided as a plurality of condenser lenses 210, and the plurality of condenser lenses 210 may be arranged in the left-right direction.

[0075] In the illustrated embodiment, an example is shown in which the condenser lens portion 200 includes three condenser lenses 210, and one condenser lens 210 includes four light incident surfaces 211 and four light emitting surfaces 212. However, the number of condenser lenses 210 and the number of light incident surfaces 211 and light emitting surfaces 212 included in one condenser lens 210 are not limited to the illustrated embodiment, but may be variously changed according to the design specifications of the vehicle lamp 10.

[0076] In addition, refer to Figure 2 、 Figure 3 and 10A to 12B , the light emitting surface 212 may be formed as a curved surface convex toward the front side. In addition, the vertical curvature and the horizontal curvature of the light emitting surface 212 may be formed differently.

[0077] In detail, the unit lens may be an aspherical lens in which the vertical focus and the horizontal focus of the light emitting surface 212 are formed differently. The shape of each light distribution pattern can be adjusted by optimizing the vertical curvature and the horizontal curvature of the light emitting surface 212.

[0078] Furthermore, for example, the light emitting surface 212 may be a curved surface that is asymmetric in the up-down direction or the left-right direction with respect to the optical axis of each unit lens. Furthermore, for example, the plurality of light emitting surfaces 212 may be formed in the same shape or may be formed in different shapes.

[0079] Therefore, distortion due to the curved shape of the second emitting lens part 400 may be improved through the design of each unit lens.

[0080] Will refer to 10A to 12B The effect of the unit lens according to the embodiment of the present disclosure is described. Figure 10A is a view showing a horizontal optical path of a unit lens according to an example of the present disclosure, and Figure 10B is a view illustrating a horizontal optical path when an optical path of a unit lens is viewed from above according to a comparative example of the present disclosure.

[0081] Figure 11A is a view showing a vertical optical path of a unit lens according to an example of the present disclosure, and Figure 11Bis a view illustrating a vertical optical path when an optical path of a unit lens is viewed from above according to a comparative example of the present disclosure.

[0082] Figure 12A is an image showing a light distribution pattern when a unit lens according to an example of the present disclosure is used, and Figure 12B is an image showing a light distribution pattern when a unit lens according to a comparative example of the present disclosure is used.

[0083] Applicable to 10A to 12B The unit lens according to the comparative example is a well-known collimator using an aspherical lens having the same vertical curvature and the same horizontal curvature, and is a lens that converts light emitted from the light source 110 into parallel light to guide the parallel light forward.

[0084] Reference Figure 10B 、 Figure 11B and Figure 12B , the light distribution pattern formed by the unit lens according to the comparative example is formed vertically and horizontally symmetrically with respect to the optical axis.

[0085] On the other hand, refer to Figure 10A 、 Figure 11A and Figure 12A , when the unit lens according to the embodiment of the present disclosure is used, the light distribution pattern is asymmetrically formed in the vertical direction "z" relative to the optical axis, and the upper area of ​​the optical axis is formed to be larger than the lower area of ​​the optical axis.

[0086] In this way, when using the unit lens according to an embodiment of the present disclosure, the optical properties of the unit lens are used to adjust the light diffusion angle of the emitted light, thereby achieving a light distribution pattern that is wider in the upward direction than in the downward direction relative to the optical axis. Therefore, various light distribution patterns that can meet the light distribution performance requirements of smart headlights can be achieved.

[0087] Specifically, the light forming the beam pattern of an IFS or ADB lamp as a smart headlamp travels at an upward tilt angle of approximately 5° or greater relative to the optical axis, and at a downward tilt angle of approximately -2° to -3° relative to the optical axis. This creates a vertically asymmetric light distribution pattern.

[0088] When using a collimator according to the prior art, light travels parallel to the optical axis, forming a light distribution pattern that is vertically symmetrical with respect to the optical axis. This makes it difficult to implement a light distribution pattern that meets the light distribution performance requirements of a smart headlamp. On the other hand, when using the unit lenses of the condenser lens 210 according to an embodiment of the present disclosure, the shape of each light distribution pattern that meets the light distribution performance requirements of a smart headlamp can be achieved by designing the vertical and horizontal focal points of the light emitting surface 212.

[0089] Meanwhile, the first emission lens unit 300 may include a plurality of optical lenses 310. The plurality of optical lenses 310 may be arranged along the left-right direction "x" and may be arranged to correspond to the plurality of condenser lenses 210, respectively. In detail, the number of optical lenses 310 may correspond to the number of condenser lenses 210, and each optical lens 310 may be arranged in front of the corresponding condenser lens 210.

[0090] Here, each of the plurality of optical lenses 310 may include an incident surface 311 and an emission surface 312. Light may be incident from the condensing lens 210 into the incident surface 311. In addition, the emission surface 312 may be provided to emit the light incident into the incident surface 311 to the second emission lens portion 400.

[0091] In addition, the emission surface 312 may be bent backward from the other end to one end in the left-right direction "x".

[0092] For details, refer to Figure 1 、 Figure 4 and Figure 5 , the emission surface 312 of the optical lens 310 may be curved in a direction opposite to the curvature direction of the second emission lens portion 400. For example, when the second emission lens portion 400 is curved backward from one end to the other end, the emission surface 312 may be curved backward from the other end to one end.

[0093] Here, the bending direction of the second emitting lens portion 400 may be determined according to the exterior design of the vehicle as described above. When the vehicle lamp 10 is turned on, the integrated second emitting lens portion 400 may realize a continuous lighting image.

[0094] Furthermore, when the light-emitting surface 212 of each optical lens 310 is curved in a direction opposite to the curvature of the second emitting lens portion 400, distortion caused by the curved shape of the second emitting lens portion 400 can be improved, and a desired light distribution pattern can be formed on the front side. Consequently, the degree of freedom in designing the vehicle exterior and the vehicle lamp 10 can be increased, and a slim lamp in the left-right direction "x" can be realized.

[0095] Furthermore, for example, the plurality of optical lenses 310 may be formed in different shapes. For example, the curvature of the light emitting surface 212 of the optical lens 310 arranged on one side may be greater than the curvature of the light emitting surface 212 of the optical lens 310 arranged on the other side. However, the shape of the optical lens 310 is not limited to the embodiment shown, and may be formed in the same shape according to the design specifications of the vehicle lamp 10.

[0096] at the same time, Figure 4 and Figure 5Optical paths and virtual focal points FV1 , FV2 , FV3 , FH1 , FH2 , and FH3 according to the optical characteristics of each optical lens 310 are shown.

[0097] Referring to the drawings, each optical lens 310 may form a virtual focus behind the corresponding condenser lens 210. In addition, the distance between the vertical virtual focus FV1, FV2, and FV3 and the incident surface 311 of the optical lens 310 may be greater than the distance between the horizontal virtual focus FH1, FH2, and FH3 and the incident surface 311 of the optical lens 310 (see FIG. Figure 5 ).

[0098] Specifically, the optical lens 310 may have different horizontal and vertical curvatures. Therefore, the vertical virtual focal points FV1, FV2, and FV3 and the horizontal virtual focal points FH1, FH2, and FH3 of the optical lens 310 may be different from each other. For example, the horizontal curvature may be greater than the vertical curvature, so that the vertical virtual focal points FV1, FV2, and FV3 and the virtual focal plane may be located behind the horizontal virtual focal points FH1, FH2, and FH3 and the virtual focal plane.

[0099] At the same time, reference will be made to Figures 6 to 9 The shape of the virtual pattern formed on the virtual focal plane is described in detail. For reference, the virtual focal plane is a virtual surface in which the virtual focus FV1 extends in a direction perpendicular to the optical axis (see Figure 4 and Figure 5 ),but Figures 6 to 9 A virtual focal plane is shown such that it is viewed from the front when the optical path is viewed from the side, in order to describe the virtual focus FV1 and the virtual pattern.

[0100] Figure 6 1 and 2. There are shown a vertical virtual focus FV1 and a virtual focal plane according to optical characteristics of the first emission lens section 300. As shown in the figure, the virtual focus FV1 and the virtual focal plane may be formed behind the unit lens and the light source 110.

[0101] Figure 7 is a diagram illustrating a virtual vertical optical path of emitted light extending toward the rear side of the first emitting lens section 300 and a vertical virtual pattern formed on a virtual focal plane by the virtual vertical optical path. Referring to the illustrated embodiment, it can be determined that the virtual pattern is formed asymmetrically in the vertical direction "z" relative to the virtual focal point FV1.

[0102] Specifically, the virtual pattern may be formed such that the upper area is smaller than the lower area relative to the virtual focus FV1. Therefore, the light distribution pattern or high beam pattern emitted by the first emitting lens unit 300 may be formed such that the upper area is larger than the lower area relative to the optical axis.

[0103] Figure 81 and 2. There are shown a horizontal virtual focus FH1 and a virtual focal plane according to optical characteristics of the first emitting lens section 300. As shown in the figure, the horizontal virtual focus FH1 and the virtual focal plane may be formed behind the unit lens and the light source 110.

[0104] Figure 9 3 is a diagram illustrating a virtual horizontal optical path of emitted light extending toward the rear side of the first emitting lens unit 300 and a horizontal virtual pattern formed on a virtual focal plane by the virtual horizontal optical path. Referring to the illustrated embodiment, it can be determined that the virtual pattern is formed symmetrically in the left-right direction "x" relative to the horizontal virtual focal point FH1.

[0105] Therefore, the light distribution patterns can overlap with each other, so that the uniformity of the entire high beam pattern can be improved.

[0106] According to embodiments of the present disclosure, the optical characteristics of the condensing lens unit can be used to adjust the light distribution pattern. Furthermore, according to embodiments of the present disclosure, the condensing lens unit can improve light collection efficiency, while simultaneously correcting distortion caused by the curved shape of the emitting lens through the individual design of the multiple light emitting surfaces. Consequently, optical efficiency can be improved.

[0107] Furthermore, according to the embodiments of the present disclosure, since the light sources can be arranged in the left-right direction, the volume can be minimized, and thus a slim lamp in the left-right direction can be realized.

[0108] The vehicle lamp according to the embodiment of the present disclosure may have at least one of the following effects.

[0109] According to an embodiment of the present disclosure, the light distribution pattern may be adjusted using the optical characteristics of the condensing lens portion.

[0110] According to the embodiments of the present disclosure, the light-collecting efficiency can be improved by the light-collecting lens portion, and at the same time, the distortion caused by the curved shape of the emission lens can be corrected by individually designing the multiple light-emitting surfaces, thereby improving the optical efficiency.

[0111] According to an embodiment of the present disclosure, since the light sources may be arranged in the left-right direction, the volume may be minimized, and thus a slim lamp in the left-right direction may be realized.

[0112] The various embodiments of the present disclosure do not list all available combinations but are used to describe representative aspects of the present disclosure, and the descriptions of the various embodiments may be applied independently or may be applied in combination of two or more.

[0113] A number of embodiments have been described above. However, it should be understood that various modifications may be made. For example, suitable results may be achieved if the described techniques are performed in a different order and / or if components in the described systems, architectures, devices, or circuits are combined in a different manner and / or replaced or supplemented with other components or their equivalents.

[0114] Although the present disclosure includes specific examples, it will be apparent after understanding the disclosure of the present application that various changes in form and detail may be made in these examples without departing from the spirit and scope of the present disclosure. The examples described herein are intended to be descriptive only and not for limiting purposes. The description of the features or aspects in each example is intended to be applicable to similar features or aspects in other examples. Suitable results may be achieved if the described techniques are performed in a different order, and / or if the components in the described systems, architectures, devices, or circuits are combined in different ways and / or replaced or supplemented with other components or their equivalents.

[0115] CROSS-REFERENCE TO RELATED APPLICATIONS

[0116] This application claims priority from Korean Patent Application No. 10-2024-0041358 filed on March 26, 2024, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety for all purposes.

Claims

1. A vehicle lamp, characterized in that: The vehicle lamp comprises: a light source portion including a plurality of light sources configured to generate light; a condensing lens portion provided in front of the light source portion, corresponding to the plurality of light sources, and including a plurality of light emitting surfaces from which the light is emitted; and a first emitting lens portion, the first emitting lens portion being disposed in front of the condensing lens portion, the first emitting lens portion being configured to emit the light incident from the plurality of light sources to form a plurality of light distribution patterns; wherein the plurality of light distribution patterns are configured to overlap with each other to form a high beam pattern, and The light emitting surface is configured to form the light distribution pattern into a shape that is vertically asymmetric with respect to the optical axis.

2. The vehicle lamp according to claim 1, characterized in that: a virtual focal plane which is a virtual plane passing through a virtual focus formed behind the condenser lens section when the optical path formed by the optical characteristics of the first emitting lens section extends from the optical axis and is perpendicular to the optical axis, wherein the virtual pattern is a virtual optical pattern formed on the virtual focal plane through a virtual optical path in which the emitted light as the light emitted from the first emitting lens portion extends to the rear side of the first emitting lens portion, and The virtual pattern is formed asymmetrically along the vertical direction relative to the virtual focus.

3. The vehicle lamp according to claim 2, characterized in that: The virtual pattern is configured and shaped such that an upper area is smaller than a lower area relative to the virtual focus.

4. The vehicle lamp according to claim 2, characterized in that: The virtual pattern is configured to be formed symmetrically in the left-right direction with respect to the virtual focus.

5. The vehicle lamp according to claim 1, characterized in that: The condenser lens portion further includes: Multiple focusing lenses arranged in the left and right directions, wherein each of the plurality of condensing lenses includes a plurality of unit lenses integrally formed and arranged along the left-right direction, and Wherein, each unit lens of the plurality of unit lenses comprises: said light emitting surface; and a light incident surface corresponding to the light emitting surface and into which the light emitted from the light source is incident.

6. The vehicle lamp according to claim 5, characterized in that: The light emitting surface is configured as a curved surface convex toward the front and includes a vertical curvature different from a horizontal curvature of the light emitting surface.

7. The vehicle lamp according to claim 5, characterized in that: The vehicle lamp further comprises: a second emitting lens portion, the second emitting lens portion being provided in front of the first emitting lens portion and being formed into a second shape different from the first shape of the first emitting lens portion; The second emitting lens portion is configured to bend backward from one end to the other end relative to the left-right direction.

8. The vehicle lamp according to claim 7, characterized in that: The first emitting lens unit includes a plurality of optical lenses, which are arranged along the left-right direction and correspond to the plurality of condensing lenses, respectively. Wherein, each of the plurality of optical lenses comprises: an incident surface into which the light is incident from the condenser lens; and an emitting surface configured to emit the light incident into the incident surface to the second emitting lens portion, and The emitting surface is configured to bend backward from the other end toward the one end with respect to the left-right direction.

9. The vehicle lamp according to claim 8, characterized in that: Each optical lens of the plurality of optical lenses is configured to form a virtual focus behind a corresponding condenser lens of the plurality of condenser lenses, and Wherein, a first distance between a vertical virtual focus and the incident surface of the optical lens is greater than a second distance between a horizontal virtual focus and the incident surface of the optical lens.

10. The vehicle lamp according to claim 1, characterized in that The plurality of light sources are arranged in the left-right direction and on the same plane.

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