Optical module and vehicle lamp

Abstract

The utility model relates to a vehicle lamp and discloses an optical module which comprises a primary optical element assembly and a secondary optical element assembly which are sequentially arranged along a light path, the primary optical element assembly comprises a first primary optical element (1) and a second primary optical element (2), and the secondary optical element assembly comprises a first lens (3) and a second lens (4). The first lens (3) is arranged between the primary optical element assembly and the second lens (4), a first lens incident surface (301) of the first lens (3) is a concave curved surface, and light rays sequentially passing through the first primary optical element assembly (1) and the secondary optical element assembly are suitable for forming a main illumination light pattern; light rays sequentially passing through the second primary optical element (2) and the first lens (3) and / or the second lens (4) in the secondary optical element assembly are suitable for forming an auxiliary illumination light pattern. In addition, the utility model further discloses a vehicle lamp. The optical module is simple in structure, attractive in appearance and good in use effect.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle lamps, and in particular, to an optical module. In addition, the present application also relates to a vehicle lamp. Background Art

[0002] At present, the shape of automobile headlights tends to be diversified, and the shape of the high and low beam modules is mainly reflected in the module lens. The module lens is also making its opening size smaller and smaller according to the shape and market demand. In the vertical direction, the opening size of the module lens in the vertical direction can be gradually reduced to the current 15mm~25mm, and the opening size in the left and right direction is reduced to 100mm~130mm, and the appearance effect presented is similar to the slender light guide of the signal light. However, due to the optical design difficulties such as the uniformity of the low beam and the cutoff line, there are few module solutions with narrow openings in the left and right directions. Modules with narrow left and right openings still have great development prospects and market shape needs.

[0003] At present, for modules with left and right openings of 10mm to 30mm, the solution used to achieve the high and low beam functions is basically to split the large module into multiple small modules, and the small modules are spliced ​​into the required target light pattern through complex dimming structures. Figure 1 The figure shows the shape and functional arrangement of the existing solution. The low beam is divided into three small modules, one small module is used to realize the central brightness area of ​​the low beam, and two modules realize the widening of the low beam. The high beam is divided into four small modules and overlapped with each other. This is because the brightness of the high beam of a single small module is limited under the condition of a small opening. The functional small modules are arranged from top to bottom, and the upper and lower space of the lens is about 240mm in total, and the light-emitting surface of the lens is discontinuous.

[0004] Based on the above reasons, it is difficult for the existing technology to effectively guarantee the use requirements of the optical module. Utility Model Content

[0005] The technical problem to be solved in the first aspect of the present application is to provide an optical module, which, by setting the secondary optical element assembly as a first lens and a second lens, can realize high and low beam lighting light patterns, and can also realize auxiliary low beam light patterns and / or auxiliary high beam light patterns such as increased low beam widening and improved high beam brightness, and has a simple structure, beautiful appearance and high optical efficiency.

[0006] Furthermore, the technical problem to be solved by the second aspect of the present application is to provide a vehicle lamp having a simple structure, beautiful appearance and high optical efficiency.

[0007] In order to solve the above-mentioned technical problems, the first aspect of the present application provides an optical module, comprising a primary optical element assembly and a secondary optical element assembly arranged in sequence along an optical path, the primary optical element assembly comprising a first primary optical element and a second primary optical element, the secondary optical element assembly comprising a first lens and a second lens, the first lens being arranged between the primary optical element assembly and the second lens, and the first lens light incident surface of the first lens being a concave surface, the light passing through the first primary optical element and the secondary optical element assembly in sequence is suitable for forming a main illumination light pattern, and the light passing through the second primary optical element and the first lens and / or the second lens in the secondary optical element assembly in sequence is suitable for forming an auxiliary illumination light pattern.

[0008] Preferably, the first primary optical element is a first light concentrator, and a cut-off line structure is provided on the first light concentrator; or the first primary optical element includes a first light concentrator and a first light shielding element, and a cut-off line structure is provided on the first light shielding element.

[0009] Preferably, the first focusing element comprises a plurality of focusing cup structures, and the plurality of focusing cup structures are arranged in a matrix.

[0010] Preferably, the second lens comprises a main light type light incident surface and an auxiliary light type light incident surface, the main light type light incident surface comprises a plurality of interconnected convex curved surfaces I, and the convex curved surfaces I are arranged corresponding to the first primary optical element.

[0011] Preferably, the second primary optical element comprises a second light concentrating member, and the second light concentrating member is a light guiding member and a second light shielding member having a light concentrating cup structure; or the second light concentrating member is a reflecting member having a reflecting mirror structure.

[0012] Preferably, the auxiliary light-type light incident surface forms an outer convex curved surface II and an auxiliary plane connected to the outer convex curved surface II, and the outer convex curved surface II is arranged corresponding to the second focusing element.

[0013] Preferably, an auxiliary low beam pattern is provided on the outer convex curved surface II.

[0014] Preferably, the second primary optical element further includes a third light focusing element, and the third light focusing element and the auxiliary plane are arranged correspondingly.

[0015] Preferably, the second lens is a cylindrical lens or a hyperbolic lens.

[0016] Preferably, the second lens further includes a second lens light-emitting surface, and the second lens light-emitting surface is formed as a plane or a curved surface with continuous curvature.

[0017] Preferably, the first lens light-emitting surface of the first lens is a convex curved surface III which is convex in the up-down direction.

[0018] Optionally, the light-emitting surface of the first lens is a convex curved surface III that is convex in the up-down direction and a convex curved surface IV connected to the convex curved surface III, and the convex curved surface IV forms a curved surface structure that is convex in both the up-down direction and the left-right direction.

[0019] Furthermore, the second aspect of the present application also provides a vehicle lamp, comprising an optical module according to any one of the above technical solutions.

[0020] Through the above technical scheme, in the optical module of the present application, by setting the first lens and the second lens, the light incident surface of the first lens is set as a concave surface, which can not only realize low beam lighting and / or high beam lighting, but also the low beam lighting light type and / or high beam lighting light type can be adjusted in the left and right directions and the up and down directions, and can also synchronously form an auxiliary low beam light type and / or an auxiliary high beam light type, and the actual appearance of the car lights is better and the manufacturing cost is lower.

[0021] Other advantages of the present application and the technical effects of the preferred embodiments will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a specific embodiment of an optical module in the prior art;

[0023] Figure 2 is a structural schematic diagram of a first specific embodiment of the optical module of the present application;

[0024] Figure 3 yes Figure 2 A partial structural diagram of

[0025] Figure 4 is a structural schematic diagram of a second specific embodiment of the optical module of the present application;

[0026] Figure 5 is a structural schematic diagram of a third specific embodiment of the optical module of the present application;

[0027] Figure 6 is a structural schematic diagram of a fourth specific embodiment of the optical module of the present application;

[0028] Figure 7 It is a structural schematic diagram of a specific embodiment of a single lens in an optical module in the prior art;

[0029] Figure 8 yes Figure 7 Schematic diagram of low beam imaging light pattern;

[0030] Fig. 9 is a schematic structural diagram of a specific embodiment of the first lens and the second lens of the present application;

[0031] Fig.10 yes Fig. 9 A front view of

[0032] Fig.11 yes Fig.10 CC profile of ;

[0033] Fig.12 Is adopted Fig. 9 A schematic diagram of a low beam imaging light pattern formed by the first lens and the second lens shown;

[0034] Fig.13 It is a schematic structural diagram of a specific embodiment of two lenses in the prior art, which shows that when the light incident surface of the first lens has no vertical convergence effect, an aperture needs to be added to avoid the formation of stray light above the cutoff line;

[0035] Fig.14 yes Fig.13 Schematic diagram of low beam imaging light pattern with large angle stray light;

[0036] Fig.15 is a structural schematic diagram of a specific embodiment of the present application when the second lens does not have a converging effect;

[0037] Fig.16 yes Fig.15 Schematic diagram of imaging light pattern;

[0038] Fig.17 It is a schematic diagram of various different structures of a specific embodiment of the light incident surface of the first lens and the light exit surface of the second lens of the present application;

[0039] Fig.18 yes Fig.17 A schematic diagram of an imaging light pattern that achieves left-right convergence, which shows that when the light incident surface of the second lens is a concave light incident surface and the curvature of the cross-section of the light exit surface of the first lens increases, the left-right width of the light pattern can be increased;

[0040] Fig.19 yes Fig.17 A schematic diagram of an imaging light pattern that achieves left-right convergence, which shows that when the light incident surface of the second lens is an inwardly convex light incident surface and the curvature of the cross-section of the light exit surface of the first lens is reduced, the left-right width of the light pattern can be reduced;

[0041] Fig. 20 It is a schematic diagram of various different structures of another specific embodiment of the first lens light incident surface and the second lens light exit surface of the present application;

[0042] Fig.21 yes Fig. 20 Schematic diagram of imaging light pattern, which shows that when the light incident surface of the second lens is a concave light incident surface and the curvature of the longitudinal section of the light exit surface of the first lens becomes smaller, the upper and lower widths of the light pattern can be increased;

[0043] Fig. 22 yes Fig. 20 Schematic diagram of imaging light pattern, which shows that when the light incident surface of the second lens is an inwardly convex light incident surface and the curvature of the longitudinal section of the light exit surface of the first lens becomes smaller, the upper and lower widths of the light pattern can be reduced.

[0044] Description of Reference Numerals

[0045] 1First primary optical element 101First focusing element

[0046] 102 first light shielding element 2 second primary optical element

[0047] 201 light guide 202 second light shielding member

[0048] 203 third light concentrator 3 first lens

[0049] 301 first lens light incident surface 302 first lens light exit surface

[0050] 3021 convex surface Ⅲ 3022 convex surface Ⅳ

[0051] 4Second lens 401 main light incident surface

[0052] 402 second lens light exit surface 403 auxiliary light incident surface

[0053] 4031 convex surface Ⅱ 4032 auxiliary plane

[0054] 5 aperture structure 6 large angle stray light DETAILED DESCRIPTION

[0055] The specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described here are only used to illustrate and explain the present application, and the protection scope of the present application is not limited to the specific implementation methods described below.

[0056] In the description of this application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation" and "connection" 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 direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In the description of the present application, it is necessary to explain that some directional words, such as "front" and "rear", etc., involved in the following description to clearly explain the technical solution of the present application, are based on the normal use orientation of the headlight, and "front" refers to the direction indicated by the light emitting direction of the headlight, and "rear" refers to the direction opposite to "front". The terms are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0058] like Figures 2 to 6 As shown, the first aspect of the present application provides an optical module, including a primary optical element assembly and a secondary optical element assembly arranged in sequence along an optical path, the primary optical element assembly including a first primary optical element 1 and a second primary optical element 2, the secondary optical element assembly including a first lens 3 and a second lens 4, the first lens 3 is arranged between the primary optical element assembly and the second lens 4, and the first lens light incident surface 301 of the first lens 3 is a concave surface, the light passing through the first primary optical element 1 and the secondary optical element assembly in sequence is suitable for forming a main illumination light pattern, and the light passing through the second primary optical element 2 and the first lens 3 and / or the second lens 4 in the secondary optical element assembly in sequence is suitable for forming an auxiliary illumination light pattern.

[0059] The optical module of the present application includes a primary optical element assembly and a secondary optical element assembly, wherein the primary optical element assembly includes a first primary optical element 1 and a second primary optical element 2, and the secondary optical element assembly includes a first lens 3 and a second lens 4. By way of example, the first primary optical element 1, the first lens 3 and the second lens 4 may constitute a low beam lighting module and / or a high beam lighting module of the present application, and realize a main lighting light type (including a low beam lighting light type and / or a high beam lighting light type); the second primary optical element 2 and the second lens 4, or the second primary optical element 2, the first lens 3 and the second lens 4 respectively constitute two auxiliary low beam lighting modules and / or auxiliary high beam lighting modules of the present application. Since the light incident surface 301 of the first lens is a concave curved surface, it can converge light in the vertical direction and / or horizontal direction. Since the low beam lighting light type and / or the high beam lighting light type need a certain width in the vertical direction and the left and right direction, the light incident surface 301 of the first lens is set as a concave curved surface, so that the magnification of the low beam lighting light type and / or the high beam lighting light type in the left and right direction and the vertical direction can be achieved at the same time, and the width adjustment in the left and right direction and the vertical direction can be achieved. The main light incident surface 401 of the second lens 4 is a convex curved surface I, and the curvature of the cross section and / or the longitudinal section of the main light incident surface 401 can be adjusted to further achieve the width adjustment of the low beam lighting light type and the high beam lighting light type in the left and right direction or the vertical direction. The light exit surface 402 of the second lens, as the final light exit surface of the optical module, can be a plane or a curved surface with a very small curvature, so as to further optimize the appearance effect of the headlight, making the headlight more beautiful.

[0060] For existing optical modules with left and right opening sizes of 10mm-30mm, the basic solution for realizing the high and low beam functions is mostly to split them into multiple modules, and use a more complex dimming structure to splice adjacent modules to achieve the required target light type. Figure 1As shown, the low beam system is divided into three modules, one of which is used to realize the central brightness area of ​​the low beam pattern, and the other two modules are used to realize the widened area of ​​the low beam pattern. The high beam system is divided into four modules and superimposed on each other. This is because the high beam brightness of a single module is limited under small opening conditions. The functional modules are arranged from top to bottom, the upper and lower opening sizes of the lens are about 240mm, and the light-emitting surface of the lens cannot form a continuous plane. In comparison, as a specific embodiment of the present application, the light-emitting surface 402 of the second lens is a plane or a curved surface with a very small curvature, which can effectively improve the visual effect of the appearance of the headlight, and the main light-entering surface 401 is formed as a curved surface and a plane with discontinuous curvature according to actual use requirements, so that the entire optical module of the present application can share the first lens 3 and / or the second lens 4, the upper part can be used to realize the main lighting light type, that is, the low beam lighting light type and the high beam lighting light type, and the lower part can be used to realize the auxiliary low beam and auxiliary high beam functions. The relatively integrated structure can make the upper and lower heights of the second lens 4 as small as 120 mm, which is half the height of the projection lens in the prior art, so that the size of the entire optical module is smaller, the structure is more compact, and the production cost is lower.

[0061] As a preferred embodiment of the present application, the first primary optical element 1 is a first concentrator 101, and a cut-off line structure is provided on the first concentrator 101; or the first primary optical element 1 includes a first concentrator 101 and a first shading element 102, and a cut-off line structure is provided on the first shading element 102.

[0062] As a specific embodiment of the present application, Figure 2 and Figure 3 As shown, the first primary optical element 1 includes a first light concentrator 101 and a first light shielding member 102, and a cut-off line structure is provided at the front edge of the first light shielding member 102. Alternatively, the first primary optical element 1 is the first light concentrator 101, and the first light concentrator 101 is preferably a long light concentrator, that is, the first light concentrator 101 has structures such as a light concentrator portion, a light-through portion, and a light-emitting portion, and the cut-off line structure can be provided at the front edge of the light-through portion or on the light-emitting portion. Since the first primary optical element 1 is provided as the first light concentrator 101 and the first light shielding member 102 or the first light concentrator 101 formed as a long light concentrator, part of the large-angle light will pass through the upper edge of the second lens 4 to form large-angle stray light 6, as shown in FIG. Fig.13 , 14As shown, this part of the large-angle stray light 6 is located above the low-beam cutoff line, therefore, in the present application, the first lens light incident surface 301 is set as a concave curved surface, especially formed in the up-down direction, and the first lens 3 is used to converge the light in the up-down direction to compensate for the convergence defect of the edge of the second lens 4 in the up-down direction of the light. If the first lens light incident surface 301 is not set as a concave curved surface, it is necessary to add an aperture structure 5 to avoid the formation of large-angle stray light 6 above the low-beam cutoff line, which undoubtedly increases the structural complexity and production cost of the entire optical module.

[0063] As a specific embodiment of the present application, the first primary optical element 1 includes a plurality of groups of first light concentrators 101, and each group of first light concentrators 101 may be provided with the same number of light concentrator cup structures, or may be provided with a different number of light concentrator cup structures. The plurality of groups of first light concentrators 101 may be arranged in various ways, such as Figure 2 , 3 The up-and-down arrangement shown can also be formed as a left-and-right arrangement, or can be formed as an inclined arrangement, or can even be arranged in a matrix structure, depending on the actual light output requirements of the optical module.

[0064] As a specific embodiment of the present application, Figure 3 The multiple groups of first light concentrators 101, the upper part of the first lens 3 and the upper part of the second lens 4 shown constitute the design distribution structure of the far and low beam main light type areas, and the low beam cutoff line is formed by the first light shielding member 102. There are two cavities in total in the far and low beam main light type areas. In each cavity, the first light concentrator 101 above the first light shielding member 102 forms a low beam lighting light type, and the first light concentrator 101 below the first light shielding member 102 forms a high beam lighting light type. The main light type light incident surface 401 includes two interconnected convex curved surfaces I, and the second lens light exit surface 402 is formed as a plane or a unidirectional stretching surface stretched in the up and down direction. On the contrary, if the second lens 4 is designed as follows Figure 7 The structure shown, that is, the light incident surface is formed as a single curved surface with a large curvature, the left and right imaging magnification of the second lens 4 in this way cannot meet the width design requirements of the low beam lighting light pattern. Figure 8 As shown, it can be seen that the imaging light pattern shrinks left and right, and the cut-off line is partially tilted upward, and the technical effect of achieving a uniform low-beam lighting light pattern by adjusting the primary optical element assembly cannot be achieved.

[0065] As a preferred embodiment of the present application, the first focusing element 101 includes a plurality of focusing cup structures, and the plurality of focusing cup structures are arranged in a matrix.

[0066] As a specific embodiment of the present application, the first focusing element 101 includes a plurality of focusing cup structures, and the plurality of focusing cup structures can be arranged in a variety of ways. Specifically, the plurality of focusing cup structures can be arranged horizontally, vertically, or diagonally; or the plurality of focusing cup structures can be formed into a matrix structure with multiple rows arranged horizontally and multiple columns arranged vertically, and the horizontal arrangement and the vertical arrangement can be perpendicular to each other or can be formed at an angle, that is, the plurality of focusing cup structures can be arranged in regular shapes such as squares, rectangles, and diamonds, or can be arranged in irregular shapes, etc.

[0067] As a preferred embodiment of the present application, the second lens 4 includes a main light type light incident surface 401 and an auxiliary light type light incident surface 403, the main light type light incident surface 401 includes a plurality of interconnected convex surfaces I, and the convex surfaces I are arranged corresponding to the first primary optical element 1.

[0068] As a specific embodiment of the present application, Figures 2 to 6 As shown in , the first primary optical element 1 includes two groups of first light concentrators 101, which are used to realize the low beam lighting light type and the high beam lighting light type. The two groups of first light concentrators 101 are arranged in an up-and-down manner, and a single group of first light concentrators 101 includes four light concentrator cup structures, which are arranged in a rectangular manner, that is, a 2×2 matrix arrangement structure. The first lens light incident surface 301 of the first lens 3 is set as a concave surface, which has a convergence effect on the light emitted by the first light concentrator 101, that is, it has a convergence effect on the light in both the up-and-down direction and the left-and-right direction. The second lens 4 includes a main light type light incident surface 401 and an auxiliary light type light incident surface 403. The main light type light incident surface 401 includes two interconnected convex curved surfaces I, and the two convex curved surfaces I are arranged corresponding to the two groups of first light concentrators 101. It can be imagined that according to actual use requirements, a larger number of convex curved surfaces I and corresponding groups of first light concentrators 101 can be set.

[0069] As a preferred embodiment of the present application, the second primary optical element 2 includes a second light concentrator, which is a light guide 201 and a second light shielding member 202 having a light concentrating cup structure, or the second light concentrator is a reflector having a reflector structure.

[0070] As a specific embodiment of the present application, Figure 2 As shown, the second primary optical element 2 includes a second light concentrating member, which is a light guide member 201 with a light concentrating cup structure and a second light shielding member 202. The second light shielding member 202 is arranged in front of the light guide member 201 with a light concentrating cup structure, and can be set to a split structure or an integrated structure.

[0071] As another specific embodiment of the present application, Figure 5As shown, the second primary optical element 2 includes a second light concentrator, which is a reflector having a reflector structure. The second light concentrator can be configured to share a circuit board with the first light concentrator 101, or can be configured to use a separate circuit board, depending on actual use requirements.

[0072] As a preferred embodiment of the present application, the auxiliary light-type light incident surface 403 forms an outer convex curved surface II 4031 and an auxiliary plane 4032 connected to the outer convex curved surface II 4031 , and the outer convex curved surface II 4031 is arranged corresponding to the second focusing element.

[0073] As a preferred embodiment of the present application, an auxiliary low beam pattern is provided on the convex curved surface II4031.

[0074] As a specific embodiment of the present application, Figure 4 and Figure 5 As shown, an auxiliary low beam pattern is provided on the convex curved surface II 4031, and the auxiliary low beam pattern is preferably a columnar pattern, which can diffuse the low beam light and solve the problem of widening the light pattern.

[0075] As another specific embodiment of the present application, Figure 6 As shown, the auxiliary plane 4032 on the second lens 4 corresponds to the convex curved surface IV3022 and the second light concentrator, and is used to achieve the widening of the low beam, wherein the auxiliary plane 4032 has no focusing effect, and the widening of the light pattern is achieved by the convex curved surface IV3022. In this embodiment, the auxiliary high beam is mainly used to supplement the brightness of the high beam light pattern, and is directly projected on the second lens 4 by the third light concentrator 203, and is projected through the auxiliary plane 4032 to form a parallel light spot, forming a supplementary light pattern.

[0076] As a preferred embodiment of the present application, the second primary optical element 2 further includes a third light concentrator 203 , and the third light concentrator 203 and the auxiliary plane 4032 are arranged correspondingly.

[0077] As a preferred embodiment of the present application, Figures 9 to 11 As shown, the second lens 4 is a cylindrical lens or a hyperbolic lens.

[0078] As a specific embodiment of the present application, the second lens 4 mainly functions to converge the light in the vertical direction. The second lens 4 determines whether the light energy is close to the cut-off line. The first lens 3 needs to converge the light in the left and right directions. At the same time, since the low beam illumination light pattern needs to have a certain width, the first lens 3 also needs to have the function of converging the light in the vertical direction. Fig.12 It can be seen that the light energy distribution is uniform, and the left and right broadening and cutoff line are greatly improved compared with the general single lens module or the double lens module with a special structure not in this application.

[0079] It should be noted that a hyperbolic lens refers to a lens whose light-entry and light-exit surfaces are both curved and which has the effect of converging or diverging light. A cylindrical lens refers to a lens that has imaging magnification in only one direction and is formed by unidirectional stretching along a certain direction.

[0080] As a preferred embodiment of the present application, the second lens 4 further includes a second lens light-emitting surface 402 , and the second lens light-emitting surface 402 is formed as a plane or a curved surface with continuous curvature.

[0081] As a specific embodiment of the present application, the second lens 4 includes a main light-entering surface 401, a second lens light-emitting surface 402 and an auxiliary light-entering surface 403. The main light-entering surface 401 includes a plurality of interconnected convex curved surfaces I, and the convex curved surface I is arranged corresponding to the first primary optical element 1. The second lens light-emitting surface 402 is formed as a plane or a curved surface with continuous curvature. The auxiliary light-entering surface 403 forms a convex curved surface II 4031 and an auxiliary plane 4032 connected to the convex curved surface II 4031, and the convex curved surface II 4031 is arranged corresponding to the second light focusing element. Thus, while satisfying the low-beam lighting light type and the high-beam lighting light type, auxiliary low-beam lighting and auxiliary high-beam lighting can also be achieved, and the external dimensions of the headlight can be greatly reduced, and the external appearance effect can be further optimized, so that the headlight structure is more compact and the appearance is more beautiful.

[0082] As a preferred embodiment of the present application, the first lens light-emitting surface 302 of the first lens 3 is a convex curved surface III3021 that is convex in the up-down direction; or the first lens light-emitting surface 302 is a convex curved surface III3021 that is convex in the up-down direction and a convex curved surface IV3022 connected to the convex curved surface III3021, and the convex curved surface IV3022 forms a curved surface structure that is convex in both the up-down direction and the left-right direction.

[0083] As a specific embodiment of the present application, Figures 17 to 19As shown, in the left and right directions, by adjusting the cross-sectional curvature of the main light type light incident surface 401 and the first lens light exit surface 302, the magnification of the light spot in the left and right directions can be controlled. Specifically, when the cross-sectional curvature of the first lens light exit surface 302 gradually increases (i.e., the first lens light exit surface 302a), the light type can achieve a magnification effect in the left and right directions, but at this time, the cutoff line profile cannot be formed. By adjusting the main light type light incident surface 401 to be concave (i.e., the main light type light incident surface 401c), left and right magnification can be achieved while forming a clear cutoff line profile. Similarly, when the curvature of the cross-sectional line of the first lens light exit surface 302 becomes smaller (i.e., the first lens light exit surface 302c), when the main light type light incident surface 401 is convex (i.e., the main light type light incident surface 401a), the light spot can be shrunk in the left and right directions, which is beneficial to improving the imaging quality of the ADB (adaptive high beam) light type.

[0084] As another specific embodiment of the present application, Figure 20 to Figure 22 As shown, in the vertical direction, when the main light incident surface 401 is concave (i.e., the main light incident surface 401c), the curvature of the longitudinal section of the first lens light exit surface 302 gradually increases (i.e., the first lens light exit surface 302a), and the light pattern can be widened vertically. When the main light incident surface 401 is convex (i.e., the main light incident surface 401a), the curvature of the longitudinal section of the first lens light exit surface 302 decreases (i.e., the first lens light exit surface 302c), and the light pattern can be narrowed vertically.

[0085] It is conceivable that when the first lens 3 and the second lens 4 simultaneously have the effect of converging the light in the up and down directions and the left and right directions, the light pattern can be simultaneously controlled in the up and down directions and the left and right directions through the first lens 3 and the second lens 4.

[0086] In comparison, Fig.15 and Fig.16 As shown, in this embodiment, there are a first lens 3 and a second lens 4, but the light exit surface and the light incident surface of the second lens form planes parallel to each other, and the first lens 3 is a normal converging lens. At this time, the light pattern formed is narrower in the left and right directions, and it is difficult to ensure the uniformity of the superposition of multiple light patterns in the low beam light pattern.

[0087] A second aspect of the present application provides a vehicle lamp, comprising an optical module as described in any one of the technical solutions of the first aspect.

[0088] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings; however, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, a variety of simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the protection scope of the present application.

[0089] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0090] In addition, the various implementation modes of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed in the present application.

Claims

1. An optical module, characterized in that: The invention comprises a primary optical element assembly and a secondary optical element assembly which are sequentially arranged along an optical path, wherein the primary optical element assembly comprises a first primary optical element (1) and a second primary optical element (2), and the secondary optical element assembly comprises a first lens (3) and a second lens (4), wherein the first lens (3) is arranged between the primary optical element assembly and the second lens (4), and a first lens light incident surface (301) of the first lens (3) is a concave curved surface, and light rays sequentially passing through the first primary optical element (1) and the secondary optical element assembly are suitable for forming a main illumination light pattern, and light rays sequentially passing through the second primary optical element (2) and the first lens (3) and / or the second lens (4) in the secondary optical element assembly are suitable for forming an auxiliary illumination light pattern.

2. The optical module according to claim 1, characterized in that: The first primary optical element (1) is a first light concentrator (101), and a cut-off line structure is provided on the first light concentrator (101); or the first primary optical element (1) comprises a first light concentrator (101) and a first light shielding element (102), and a cut-off line structure is provided on the first light shielding element (102).

3. The optical module according to claim 2, characterized in that: The first light concentrator (101) comprises a plurality of light concentrator cup structures, and the plurality of light concentrator cup structures are arranged in a matrix.

4. The optical module according to any one of claims 1 to 3, characterized in that: The second lens (4) comprises a main light type light incident surface (401) and an auxiliary light type light incident surface (403), the main light type light incident surface (401) comprises a plurality of mutually connected convex curved surfaces I, and the convex curved surfaces I are arranged corresponding to the first primary optical element (1).

5. The optical module according to claim 4, characterized in that: The second primary optical element (2) comprises a second light concentrator, which is a light guide (201) having a light concentrator cup structure and a second light shielding element (202); or the second light concentrator is a reflector having a reflector structure.

6. The optical module according to claim 5, characterized in that: The auxiliary light-type light incident surface (403) forms an outer convex curved surface II (4031) and an auxiliary plane (4032) connected to the outer convex curved surface II (4031), and the outer convex curved surface II (4031) is arranged corresponding to the second focusing element.

7. The optical module according to claim 6, characterized in that: An auxiliary low beam pattern is provided on the outer convex curved surface II (4031).

8. The optical module according to claim 7, characterized in that: The second primary optical element (2) further comprises a third light concentrator (203), and the third light concentrator (203) and the auxiliary plane (4032) are arranged correspondingly.

9. The optical module according to any one of claims 1 to 3, characterized in that: The second lens (4) is a cylindrical lens or a hyperbolic lens.

10. The optical module according to claim 9, characterized in that: The second lens (4) further comprises a second lens light-emitting surface (402), and the second lens light-emitting surface (402) is formed as a plane or a curved surface with continuous curvature.

11. The optical module according to any one of claims 1 to 3, characterized in that: The first lens light-emitting surface (302) of the first lens (3) is a convex curved surface III (3021) convex in the vertical direction; or, the first lens light-emitting surface (302) is a convex curved surface III (3021) convex in the vertical direction and a convex curved surface IV (3022) connected to the convex curved surface III (3021), and the convex curved surface IV (3022) forms a curved surface structure that is convex in both the vertical direction and the left-right direction.

12. A vehicle lamp, characterized in that: An optical module comprising any one of claims 1 to 11.

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