Condensation element and vehicle lamp

Abstract

The invention provides a condensation element and a vehicle lamp, and relates to the technical field of vehicle illumination. The condensing element comprises a condensing part, the condensing part is provided with a light incident surface, a reflecting surface and a light emergent surface, the reflecting surface and the light emergent surface are oppositely arranged, the light emergent surface is provided with a first focus and a second focus, the first focus is located on the reflecting surface, the second focus is located on the side, away from the reflecting surface, of the light emergent surface, and the reflecting surface is provided with a third focus located on the side, away from the reflecting surface, of the light incident surface; the divergent light at the third focus is emitted to the light incident surface, is emitted to the first focus on the reflecting surface after being refracted by the light incident surface, is reflected by the reflecting surface, is emitted to the light emergent surface as parallel or approximately parallel light, and is converged at the second focus after being refracted by the light emergent surface. The arrangement of the light and shade cut-off line structure can be more flexible.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle lighting, and in particular to a focusing element and a vehicle lamp. Background Art

[0002] The light sources commonly used in the optical systems of automotive lights, whether they are traditional light bulbs, the currently commonly used LED light-emitting chips, or even laser light sources, are all close to Lambert divergent light sources, that is, the light emitted by the light source is emitted in a divergent manner. Therefore, in the optical systems of automotive lights, focusing elements are generally required to converge the divergent light emitted by the light source.

[0003] At present, commonly used focusing elements include ellipsoidal reflectors, convex lenses and condensers. For example, patent CN105371215B provides a convex lens focusing element solution, in which the light source is set at the near focus of the convex lens, and the convex lens converges the divergent light emitted by the light source to the focal plane of the imaging lens, and the light cutoff line required for the low beam illumination is formed by the reflector set at the focus of the imaging lens. However, the light cutoff line structure in this solution can only be set on the reflector at the focus of the imaging lens, and cannot be set at other positions. Summary of the invention

[0004] The object of the present invention is to provide a focusing element and a vehicle lamp, which can make the setting of the cut-off line structure more flexible.

[0005] The embodiment of the present invention is achieved as follows:

[0006] An embodiment of the present invention provides a focusing element, including a focusing portion, the focusing portion having a light incident surface, a reflecting surface and a light emitting surface arranged opposite to each other, the light emitting surface having a first focus and a second focus, the first focus being located on the reflecting surface, the second focus being located on a side of the light emitting surface away from the reflecting surface, the reflecting surface having a third focus, the third focus being located on a side of the light incident surface away from the reflecting surface; the divergent light at the third focus is emitted toward the light incident surface, is refracted by the light incident surface, is emitted toward the first focus on the reflecting surface, is then reflected by the reflecting surface, and is emitted toward the light emitting surface as parallel or nearly parallel light rays, and is converged at the second focus after being refracted by the light emitting surface.

[0007] Optionally, it further comprises an extension portion connected to the focusing portion, the extension portion is provided with a light-dark cutoff line structure, and the light-dark cutoff line structure is located at the first focus.

[0008] An embodiment of the present invention also provides a vehicle lamp, comprising a light source, an imaging lens, a light-dark cutoff line structure and a focusing element as described above, wherein the light source is arranged at a third focus of the focusing element, or the divergent light emitted by the light source converges at the third focus, the focus of the imaging lens coincides with the second focus of the focusing element, and the light-dark cutoff line structure is located at the first focus and / or the second focus.

[0009] Optionally, the light source includes a low beam light source and a high beam light source, which respectively form low beam divergent light and high beam divergent light at the third focus, and the low beam divergent light and high beam divergent light are emitted to both sides of the first focus on the reflecting surface.

[0010] Optionally, the light source includes a low beam light source and a high beam light source, the number of focusing elements is two, the light emitted by the low beam light source forms divergent light at the third focus of one of the focusing elements, the light emitted by the high beam light source forms divergent light at the third focus of the other focusing element, and the second focal points of the two focusing elements coincide.

[0011] Optionally, the light-dark cutoff line structure is arranged in one of the following ways: the vehicle lamp also includes an optical plate arranged between the focusing element and the imaging lens, and the light-dark cutoff line structure is arranged on the optical plate and located at the second focus; the focusing element also includes an extension portion connected to the focusing portion, and the light-dark cutoff line structure is arranged on the extension portion and located at the first focus; the light-dark cutoff line structure is arranged on the imaging lens and located at the second focus.

[0012] Optionally, a reflector is further included, the reflector has a fourth focus and a fifth focus, the light source is arranged at the fourth focus, and the fifth focus coincides with the third focus.

[0013] Optionally, a connecting portion is provided between the light-focusing element and the imaging lens, and the connecting portion connects the light-focusing element and the imaging lens into one.

[0014] Optionally, the light source, the cutoff line structure, the focusing element and the imaging lens include multiple ones, each focusing element corresponds to at least one light source, the multiple focusing elements, the multiple cutoff line structures and the multiple imaging lenses are arranged in one-to-one correspondence, and the multiple imaging lenses share the same imaging light output surface.

[0015] Optionally, it further includes a circuit board and a heat sink, the light source is arranged on one side of the circuit board and electrically connected to the circuit board, and the heat sink is arranged on the other side of the circuit board.

[0016] The beneficial effects of the embodiments of the present invention include:

[0017] The focusing element provided by the embodiment of the present invention includes a focusing part, the focusing part has a light incident surface, a reflective surface and a light emitting surface arranged oppositely, the light emitting surface has a first focus and a second focus, the first focus is located on the reflective surface, the second focus is located on the side of the light emitting surface away from the reflective surface, the reflective surface has a third focus, the third focus is located on the side of the light incident surface away from the reflective surface; the divergent light at the third focus is emitted to the light incident surface, refracted by the light incident surface and emitted to the first focus on the reflective surface, then reflected by the reflective surface, emitted to the light emitting surface as parallel or nearly parallel light, and refracted by the light emitting surface and converged at the second focus. The focusing element sets the light emitting surface as a curved surface with at least two focuses, and can image the primary light distribution at the first focus to the second focus to form a secondary light distribution. When applied to a vehicle lamp, the light-dark cutoff line structure can be set at either the first focus or the second focus; the secondary light distribution at the second focus is imaged to the road surface through an imaging lens whose focus coincides with the second focus, forming a light shape with a light-dark cutoff line. The focusing element can not only realize the convergence of light, but also provide two setting positions for the light-dark cutoff line structure, which can improve the flexibility of setting the light-dark cutoff line structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 One of the structural schematic diagrams of the light focusing element provided in the embodiment of the present invention;

[0020] Figure 2 One of the optical path schematic diagrams of the light focusing element provided in the embodiment of the present invention;

[0021] Figure 3 A second optical path schematic diagram of a light focusing element provided in an embodiment of the present invention;

[0022] Figure 4 One of the structural schematic diagrams of the vehicle lamp provided by the embodiment of the present invention;

[0023] Figure 5 for Figure 4 Schematic diagram of the light shape with bright and dark cut-off lines formed by the headlights in FIG.

[0024] Figure 6 A second structural schematic diagram of a light focusing element provided in an embodiment of the present invention;

[0025] Figure 7 The second structural schematic diagram of the vehicle lamp provided by the embodiment of the present invention;

[0026] Figure 8 The third structural schematic diagram of the vehicle lamp provided by the embodiment of the present invention;

[0027] Fig. 9 for Figure 7 Schematic diagram of the light path of the headlight in FIG.

[0028] Fig.10 for Figure 8 Schematic diagram of the light path of the headlight in FIG.

[0029] Fig.11 A schematic diagram of the light path of a first integrated high and low beam headlight provided in an embodiment of the present invention;

[0030] Fig.12 A schematic diagram of the structure of a second integrated high and low beam headlight provided by an embodiment of the present invention;

[0031] Fig.13 for Fig.12 Schematic diagram of the light path of the high and low beam integrated headlights;

[0032] Fig.14 for Fig.12 Schematic diagram of the low beam light shape of the high and low beam integrated headlight;

[0033] Fig.15 for Fig.12 Schematic diagram of the high beam light shape of the high and low beam integrated headlight;

[0034] Fig.16 for Fig.12 Schematic diagram of the high and low beam light shapes of the high and low beam integrated headlight;

[0035] Fig.17 A schematic diagram of the structure of a third integrated high and low beam headlight provided by an embodiment of the present invention;

[0036] Fig.18 A fourth structural schematic diagram of a vehicle lamp provided by an embodiment of the present invention;

[0037] Fig.19 for Fig.18 Schematic diagram of the light path of the headlight in FIG.

[0038] Fig. 20 A fifth structural schematic diagram of a vehicle lamp provided by an embodiment of the present invention;

[0039] Fig.21 A sixth structural schematic diagram of a vehicle lamp provided by an embodiment of the present invention;

[0040] Fig. 22 The seventh structural diagram of the vehicle lamp provided by the embodiment of the present invention;

[0041] Fig.23 for Fig. 20 Exploded view of the car lights.

[0042] Icons: 100-light-focusing element; 110-light-focusing part; 111-light incident surface; 112-reflecting surface; 1121-third focus; 113-light emitting surface; 1131-first focus; 1132-second focus; 120-extension part; 130-light conductor; 200-headlight; 210-light source; 211-low-beam light source; 212-high-beam light source; 220-imaging lens; 221-imaging light emitting surface; 230-light-cutoff line structure; 240-optical plate; 250-reflector; 251-fourth focus; 252-fifth focus; 260-connecting part; 270-circuit board; 280-heat sink; 290-lens bracket; 291-connecting arm; 292-fixing screw; 300-divergent light. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0047] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0048] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Please refer to Figure 1 and Figure 6 The embodiment of the present application provides a focusing element 100, including a focusing portion 110, the focusing portion 110 has a light incident surface 111, a reflecting surface 112 and a light emitting surface 113 arranged opposite to each other, the light emitting surface 113 has a first focus 1131 and a second focus 1132, the first focus 1131 is located on the reflecting surface 112, the second focus 1132 is located on the side of the light emitting surface 113 away from the reflecting surface 112, the reflecting surface 112 has a third focus 1121, and the third focus 1121 is located on the side of the light incident surface 111 away from the reflecting surface 112; please refer to Figure 2 and Figure 3 The light source 210 forms divergent light at the third focus 1121 and emits it toward the light incident surface 111. After being refracted by the light incident surface 111, it emits it toward the first focus 1131 on the reflecting surface 112. After being reflected by the reflecting surface 112, it emits it toward the light emitting surface 113 as parallel or nearly parallel light rays. After being refracted by the light emitting surface 113, it converges at the second focus 1132.

[0050] The focusing element 100 includes a focusing portion 110, and the focusing portion 110 is used to focus the divergent light 300 emitted by the light source 210. The focusing portion 110 has a light incident surface 111, a reflective surface 112, and a light emitting surface 113, wherein the reflective surface 112 and the light emitting surface 113 are arranged opposite to each other, the light incident surface 111 is located between the reflective surface 112 and the light emitting surface 113, and two opposite edges of the light incident surface 111 extend toward the reflective surface 112 and the light emitting surface 113, respectively. In practical applications, the light source 210 forms the divergent light 300 at the third focus 1121 of the focusing element 100, which can be achieved by directly setting the light source 210 at the third focus 1121, or by using other focusing elements, such as an ellipsoidal reflector, to converge the light emitted by the light source 210 at the third focus 1121 to form the divergent light 300. Please refer to Figure 2, the divergent light 300 enters the light focusing element 100 from the light incident surface 111 from the third focal point 1121 and is emitted to the reflective surface 112, wherein a part of the light is irradiated at the first focal point 1131 on the reflective surface 112, and the rest of the light is irradiated at a position of the reflective surface 112 that is farther from the first focal point 1131. Figure 3 The light irradiated at the first focus 1131 is reflected by the reflective surface 112 and then emitted to the light emitting surface 113, and then refracted by the light emitting surface 113 and converged at the second focus 1132. The light irradiated at a distance from the first focus 1131 is reflected by the reflective surface 112 and then emitted to the light emitting surface 113, and then refracted by the light emitting surface 113 and then exits the focusing element 100.

[0051] For example, the light incident surface 111 may be a plane or a curved surface, the reflective surface 112 may be a total reflection collimating curved surface, and the light emitting surface 113 may be a dual-focus curved surface. The total reflection collimating curved surface can form parallel light after total reflection of the light refracted by the light incident surface 111, so as to reduce the divergence of the light; the dual-focus curved surface can image the primary light distribution at the first focus 1131 to the second focus 1132, so as to form a secondary light distribution.

[0052] For example, the reflective surface 112 may be a total reflective surface or a reflective surface provided with a reflective coating.

[0053] For example, two opposite edges of the reflective surface 112 are respectively connected to the edges of the reflective surface 112 and the light emitting surface 113 , so as to simplify the structure of the light focusing element 100 .

[0054] The above-mentioned focusing element 100 sets the light emitting surface 113 as a curved surface with at least two focal points, and can image the primary light distribution at the first focal point 1131 to the second focal point 1132 to form a secondary light distribution. When applied to the vehicle lamp 200, the cut-off line structure 230 can be set at the first focal point 1131 or at the second focal point 1132; please refer to Figure 4 The secondary light distribution at the second focus 1132 is imaged onto the road surface through the imaging lens 220 whose focus coincides with the second focus 1132, forming a Figure 5 The light shape with the cut-off line is shown. The focusing element 100 can not only realize the convergence of light, but also provide two setting positions for the cut-off line structure 230, which can improve the flexibility of setting the cut-off line structure 230.

[0055] Please refer to Figure 6When the cut-off line structure 230 is disposed at the first focus 1131, it can be directly disposed on the focusing element 100. Optionally, in an implementable manner of the embodiment of the present invention, an extension portion 120 connected to the focusing portion 110 is further included, and the extension portion 120 is provided with a cut-off line structure 230, and the cut-off line structure 230 is located at the first focus 1131.

[0056] For example, the light incident surface 111 of the focusing portion 110 can be a plane, the extension portion 120 can be plate-shaped and located on the side of the reflecting surface 112, the upper surface of the extension portion 120 can be flush with the light incident surface 111, and the lower surface can be provided with a bright-dark cutoff line structure 230 and the bright-dark cutoff line structure 230 is located at the first focus 1131.

[0057] It should be noted that the divergent light 300 converges to the focus (the third focus 1121, the second focus 1132), which does not mean converging on the focus in a strict sense, but may converge near the focus (<2mm). Similarly, the light-dark cutoff line structure 230 is set at the focus (the first focus 1131, the second focus 1132), which also includes the two meanings of the light-dark cutoff line structure 230 being set at the focus and near the focus.

[0058] Please refer to Figure 7 , Figure 8 and Figure 4 The present embodiment further provides a vehicle lamp 200, comprising a light source 210, an imaging lens 220, a cut-off line structure 230 and the above-mentioned focusing element 100. The light source 210 can be arranged at the third focus 1121 of the focusing element 100 (such as Figure 7 Alternatively, the light emitted by the light source 210 forms a divergent light 300 at the third focus 1121 (as shown in FIG. Figure 8 As shown), the focus of the imaging lens 220 coincides with the second focus 1132 of the focusing element 100. Figure 4 , the bright and dark cut-off line structure 230 is located at the first focus 1131 (eg Figure 4 ) or at the second focus 1132 (as shown Figure 7 shown).

[0059] Please refer to Fig. 9 and Fig.10 The divergent light 300 formed by the light source 210 at the third focus 1121 enters the interior of the focusing element 100 from the light incident surface 111 of the focusing element 100, is reflected by the reflecting surface 112, and then refracted out of the focusing element 100 through the light emitting surface 113, and is finally imaged onto the road surface through the imaging lens 220, forming a light shape with a bright and dark cut-off line.

[0060] It should be noted that the light focusing element 100 and the imaging lens 220 are both transparent and made of transparent materials. For example, the light focusing element 100 and the imaging lens 220 are made by transparent plastic injection molding.

[0061] The cut-off line structure 230 of the above-mentioned vehicle lamp 200 can be arranged at the first focus 1131 of the focusing element 100, or can be arranged at the second focus 1132 of the focusing element 100. The arrangement of the cut-off line structure 230 is more flexible.

[0062] Please refer to Figure 7 Optionally, in one implementable manner of an embodiment of the present invention, the vehicle lamp 200 further includes an optical plate 240 disposed between the focusing element 100 and the imaging lens 220 , and the light-dark cutoff line structure 230 is disposed on the optical plate 240 and located at the second focus 1132 .

[0063] The optical plate 240 can be a shading plate or a reflector. It is understood that the optical plate 240 should not hinder the propagation of light. For example, the optical plate 240 is vertically arranged below the light propagation path, and the light-dark cutoff line structure 230 is arranged on the upper edge of the optical plate 240.

[0064] Please refer to Figure 4 and Figure 6 Optionally, in an achievable manner of the embodiment of the present invention, the light focusing element 100 further includes an extension portion 120 connected to the light focusing portion 110, and the cut-off line structure 230 is disposed on the extension portion 120 and located at the first focus 1131. By disposing the cut-off line structure 230 on the light focusing element 100, the number of parts of the vehicle lamp 200 can be reduced, the assembly process can be reduced, and the production cycle can be improved.

[0065] Please refer to Figure 8 and Fig.10 Optionally, in an implementable manner of an embodiment of the present invention, a reflector 250 is further included, the reflector 250 has a fourth focus 251 and a fifth focus 252, the light source 210 is arranged at the fourth focus 251, and the fifth focus 252 coincides with the third focus 1121.

[0066] After being reflected by the reflector, the light emitted by the light source 210 forms a divergent light 300 at the fifth focus 252 (third focus 1121), and then is emitted to the light incident surface 111 of the focusing element 100. The arrangement of the reflector 250 can provide more flexibility in the arrangement of the light source 210. For example, the reflective surface 112 of the reflector 250 is an ellipsoidal surface.

[0067] In order to realize the integration of high and low beams, the light source 210 includes a low beam light source 211 and a high beam light source 212. Fig.11 , Figure 2 and Figure 3 Optionally, in one achievable manner of an embodiment of the present invention, the focusing element 100 and the imaging lens 220 each include one, and the light emitted by the low beam light source 211 and the high beam light source 212 converge near a third focus 1121 of the focusing element 100 to form low beam divergent light and high beam divergent light.

[0068] The light emitted by the low-beam light source 211 is refracted by the light incident surface 111 of the focusing element 100 to form a primary low-beam distribution near the first focus 1131, and then is reflected by the reflecting surface 112 and refracted by the light emitting surface 113 to form a secondary low-beam distribution at the second focus 1132, and finally is imaged onto the road surface through the imaging lens 220 whose focus coincides with the second focus 1132 to form a low-beam light shape; similarly, the light emitted by the high-beam light source 212 is refracted by the light incident surface 111 of the focusing element 100 to form a primary high-beam distribution near the first focus 1131, and then is reflected by the reflecting surface 112 and refracted by the light emitting surface 113 to form a secondary high-beam distribution at the second focus 1132, and finally is imaged onto the road surface through the imaging lens 220 whose focus coincides with the second focus 1132 to form a high-beam light shape. The divergent light 300 emitted by the low beam light source 211 and the high beam light source 212 is irradiated to both sides of the first focus 1131 through the same focusing element 100, and converges on both sides of the second focus 1132, and then is imaged onto the road surface through the imaging lens 220, so that the low beam light shape and the high beam light shape can be imaged onto the road surface respectively and can be better connected together.

[0069] Please refer to Fig.12 , Fig.13 , Figure 2 and Figure 3 Optionally, in one implementable manner of the embodiment of the present invention, the number of focusing elements 100 is two, the number of imaging lenses 220 is one, the light emitted by the low beam light source 211 forms a divergent light 300 at the third focus 1121 of one of the focusing elements 100, and the light emitted by the high beam light source 212 forms a divergent light 300 at the third focus 1121 of the other focusing element 100, and the second focal points 1132 of the two focusing elements 100 coincide.

[0070] The divergent light 300 emitted by the low beam light source 211 is converged by the corresponding focusing element 100 to form a secondary low beam distribution at the focus (second focus 1132) of the imaging lens 220. The imaging lens 220 images the secondary low beam distribution onto the road surface, forming a Fig.14 Similarly, the divergent light 300 emitted by the high-beam light source 212 is converged by the corresponding focusing element 100 to form a secondary high-beam distribution at the focus (second focus 1132) of the imaging lens 220, and the imaging lens 220 images the secondary high-beam distribution onto the road surface, forming a Fig.15The low beam and high beam are connected to form the following Fig.16 The high and low beam light shapes are shown.

[0071] For example, the two focusing elements 100 are arranged back to back, that is, the light incident surfaces 111 of the two focusing elements 100 face opposite directions, so that the arrangement of the light source 210 has more flexibility. For example, the two focusing elements 100 are integrally formed to reduce assembly processes and improve production cycle.

[0072] The cut-off line structure 230 is configured in one of the following ways:

[0073] like Fig.12 and Figure 3 As shown, an optical plate 240 is disposed between the two focusing elements 100 and the imaging lens 220 . The optical plate 240 is placed horizontally. The cut-off line structure 230 is disposed on the surface of the optical plate 240 and is located at the second focus 1132 .

[0074] like Fig.17 and Figure 3 As shown, the focusing element 100 corresponding to the low beam light source 211 further includes an extension portion 120 connected to the focusing portion 110 , and the cut-off line structure 230 is disposed on the extension portion 120 and located at the first focus 1131 .

[0075] like Fig.18 and Fig.19 As shown, the cut-off line structure 230 is disposed on the imaging lens 220 and is located at the second focus 1132 .

[0076] Please refer to Fig. 20 Optionally, in one possible implementation of the embodiment of the present invention, a connecting portion 260 is provided between the focusing element 100 and the imaging lens 220, and the connecting portion 260 connects the focusing element 100 and the imaging lens 220 as a whole. Since both the focusing element 100 and the imaging lens 220 are transparent bodies, they can be connected into one part by providing the connecting portion 260, thereby reducing assembly processes and improving production tact.

[0077] Please refer to Fig.21 Optionally, in one implementable manner of the embodiment of the present invention, the light source 210, the light-dark cutoff line structure 230, the focusing element 100 and the imaging lens 220 each include a plurality, each focusing element 100 corresponds to at least one light source 210, the plurality of focusing elements 100, the plurality of light-dark cutoff line structures 230 and the plurality of imaging lenses 220 are arranged in a one-to-one correspondence, and the plurality of imaging lenses 220 share the same imaging light-emitting surface 221.

[0078] The number of the cut-off line structures 230, the focusing elements 100 and the imaging lenses 220 is equal, and the number of the light sources 210 is greater than or equal to the number of the focusing elements 100. Each focusing element 100 corresponds to a cut-off line structure 230 and an imaging lens 220, and corresponds to at least one light source 210. The divergent light 300 emitted by the light source 210 is converged by the corresponding focusing element 100, and then imaged onto the road surface by the imaging lens 220, forming a light shape with a cut-off line. By using multiple imaging lenses 220 that share the imaging light output surface 221, a superimposed light shape of multiple light shapes is achieved.

[0079] For example, the plurality of light focusing elements 100 are integrally formed and the plurality of imaging lenses 220 are integrally formed and the plurality of light focusing elements 100 and the plurality of imaging lenses 220 are integrally connected via a connecting portion 260. For example, each light focusing element 100 corresponds to three light sources 210.

[0080] Please refer to Fig. 22 and Fig.23 Optionally, in one possible implementation of the embodiment of the present invention, the vehicle lamp 200 further includes a circuit board 270 and a heat sink 280, the light source 210 is disposed on one side of the circuit board 270 and electrically connected to the circuit board 270, and the heat sink 280 is disposed on the other side of the circuit board 270. The circuit board 270 is used to supply power to the light source 210, and the heat sink 280 dissipates the heat generated by the operation of the power supply.

[0081] Optionally, in one implementable manner of the embodiment of the present invention, the vehicle lamp 200 further includes an annular lens holder 290, and the imaging lens 220 is fixed in the lens holder 290; the lens holder 290 is provided with two opposite connecting arms 291 on the side facing the focusing element 100, and the optical plate 240 is fixed between the two connecting arms 291; optical conductors 130 are respectively provided on the two non-working surfaces of the focusing element 100, and the two optical conductors 130 are respectively connected to the two connecting arms 291 by fixing screws 292 to fix the focusing element 100; the circuit board 270 is fixed on the optical conductor 130, and the heat sink 280 is fixed on the side of the circuit board 270 away from the optical conductor 130.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A focusing element, characterized in that: The light focusing portion comprises a light incident surface, a reflective surface and a light emitting surface which are arranged opposite to each other, the light emitting surface has a first focus and a second focus, the first focus is located on the reflective surface, the second focus is located on a side of the light emitting surface away from the reflective surface, the reflective surface has a third focus, and the third focus is located on a side of the light incident surface away from the reflective surface; The divergent light at the third focus is emitted toward the light incident surface, and after being refracted by the light incident surface, it is emitted toward the first focus on the reflecting surface, and then reflected by the reflecting surface, and emitted toward the light emitting surface as parallel or nearly parallel light rays, and after being refracted by the light emitting surface, it converges at the second focus.

2. The light concentrating element according to claim 1, characterized in that: It also includes an extension part connected to the focusing part, and a light-dark cutoff line structure is provided on the extension part, and the light-dark cutoff line structure is located at the first focus.

3. A vehicle lamp, characterized in that: The invention comprises a light source, an imaging lens, a light-dark cutoff line structure and a focusing element as claimed in claim 1, wherein the light source is arranged at a third focus of the focusing element, or the divergent light emitted by the light source converges at the third focus, the focus of the imaging lens coincides with the second focus of the focusing element, and the light-dark cutoff line structure is located at the first focus and / or the second focus.

4. The vehicle lamp according to claim 3, characterized in that: The light source includes a low beam light source and a high beam light source, the low beam light source and the high beam light source respectively form low beam divergent light and high beam divergent light at the third focus, and the low beam divergent light and the high beam divergent light are emitted to both sides of the first focus on the reflecting surface.

5. The vehicle lamp according to claim 3, characterized in that: The light source includes a low beam light source and a high beam light source, the number of the focusing elements is two, the light emitted by the low beam light source forms divergent light at the third focus of one of the focusing elements, the light emitted by the high beam light source forms divergent light at the third focus of the other focusing element, and the second focal points of the two focusing elements coincide.

6. The vehicle lamp according to claim 3, characterized in that: The cut-off line structure is set in one of the following ways: The vehicle lamp further comprises an optical plate disposed between the light focusing element and the imaging lens, wherein the light-dark cutoff line structure is disposed on the optical plate and is located at the second focus; The light focusing element further comprises an extension portion connected to the light focusing portion, and the bright-dark cut-off line structure is arranged on the extension portion and located at the first focus; The bright and dark cut-off line structure is arranged on the imaging lens and is located at the second focus.

7. The vehicle lamp according to claim 3, characterized in that: It also includes a reflector having a fourth focus and a fifth focus, the light source is arranged at the fourth focus, and the fifth focus coincides with the third focus.

8. The vehicle lamp according to claim 3, characterized in that: A connecting portion is provided between the light-concentrating element and the imaging lens, and the connecting portion connects the light-concentrating element and the imaging lens into one body.

9. The vehicle lamp according to claim 3, characterized in that: The light source, the light-dark cutoff line structure, the focusing element and the imaging lens each include a plurality, each of the focusing elements corresponds to at least one of the light sources, the plurality of focusing elements, the plurality of light-dark cutoff line structures and the plurality of imaging lenses are arranged in one-to-one correspondence, and the plurality of imaging lenses share the same imaging light-emitting surface.

10. The vehicle lamp according to claim 3, characterized in that: Also includes circuit boards and The light source is arranged on one side of the circuit board and is electrically connected to the circuit board. The heat sink is arranged on the other side of the circuit board.

Images