High-beam lens and related lens module and illumination module

Abstract

The invention discloses a high-beam lens, a related lens module and a lighting module, and relates to the technical field of car lamps, the high-beam lens comprises a first curved surface, a first total reflection surface and a second total reflection surface which are integrally formed, first parallel light enters from the first curved surface, is converged by the first curved surface and then is reflected by the first total reflection surface and the second total reflection surface in sequence, and the first parallel light enters the second curved surface; the longitudinal convergence degree is greater than the transverse convergence degree; the longitudinal convergence degree is larger than the transverse convergence degree through the integrally-formed high-beam lens, and the high-beam light type wide in the transverse direction and narrow in the longitudinal direction can be achieved conveniently. The integrally-formed high beam lens is of a single-layer lens structure, Fresnel loss is effectively reduced, total reflection is utilized, a light path can be folded, the size can be shortened, the size and the weight of the lens are reduced while the lighting effect is improved, and energy saving and cost saving are facilitated. Meanwhile, the refraction is less, the dispersion of projected light is small, and the color uniformity is good; the lens is good in static appearance consistency, and different modeling requirements can be met.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle lamps, and in particular to a high beam lens and related lens modules and lighting modules. Background Art

[0002] The existing high beam lighting lens module usually includes two or more layers of lenses, an inner lens and an outer lens, wherein the outer lens is mostly a single-layer single-focus lens, or a single-layer multi-focus lens composed of multiple single-layer single-focus lenses. The existing high beam lighting lens module has the following disadvantages:

[0003] First, because the single-layer single-focus lens has the same degree of focus in the horizontal and vertical directions, the controllability of the high beam light shape that is flat up and down and wide left and right is poor;

[0004] Second, single-layer single-focus lenses are limited by the opening size and volume weight. Once the horizontal opening is longer, the lens thickness will increase accordingly, and the lens weight will also increase, which is not conducive to lightweight lens modules, energy saving and cost saving, and is not conducive to forming a horizontal long strip module shape, which has become one of the development trends of the industry;

[0005] Third, the single-layer multifocal lens is composed of multiple single-layer single-focal lenses, which results in a poor overall static appearance of the lens;

[0006] Fourth, in the existing high beam lighting lens module, the inner lens and the outer lens are separated, and the light emitted by the light source needs to pass through different media such as the inner lens, air, and the outer lens, resulting in large Fresnel loss and severe dispersion. Summary of the invention

[0007] In order to solve the above technical problems, the embodiments of the present application provide a high-beam lens and related lens modules and lighting modules, so as to achieve a longitudinal convergence degree greater than a lateral convergence degree through an integrally formed high-beam lens, which is equivalent to the separation of lateral and longitudinal focusing, and the longitudinal focal length is greater than the lateral focal length, so as to facilitate the realization of a high-beam light type that is wide in the horizontal direction and narrow in the vertical direction; and the integrally formed high-beam lens is a single-layer lens structure to effectively reduce Fresnel loss, and utilizes total reflection to fold the light path and shorten the size, thereby reducing the volume and weight of the lens while improving the light efficiency, which is beneficial to energy saving and cost saving; at the same time, there is less refraction, so that the projected light type has small dispersion and good color uniformity; in addition, both the light-emitting surface and the total reflection surface can be complete surfaces, and the static appearance consistency of the lens is good, which is beneficial to meet different styling requirements such as the styling of horizontal long strip modules.

[0008] To achieve the above objectives, the present application provides the following technical solutions:

[0009] A high beam lens, the high beam lens is an integrated structure, the high beam lens comprises a first curved surface, a first total reflection surface and a second total reflection surface, the first total reflection surface and the second total reflection surface are arranged opposite to each other along a first direction, the first curved surface is located on one side of the first total reflection surface along the second direction, and the first direction is perpendicular to the second direction;

[0010] The first parallel light is incident on the first curved surface, converged by the first curved surface, and then reflected by the first total reflection surface and the second total reflection surface in sequence, converged along the first direction, and converged along a third direction to become the second parallel light, and the second parallel light is emitted toward the second total reflection surface along the second direction away from the first curved surface, and the third direction is perpendicular to the first direction and perpendicular to the second direction;

[0011] A ratio of a width of the first parallel light along the first direction to a width of the second parallel light along the first direction is greater than a ratio of a width of the first parallel light along the third direction to a width of the second parallel light along the third direction.

[0012] Optionally, the first curved surface has a first side and a second side that are arranged opposite to each other along the first direction;

[0013] The first edge of the first curved surface is connected to the first total reflection surface through a first connecting surface, and the first connecting surface extends along the second direction;

[0014] The second edge of the first curved surface is connected to the second total reflection surface through a second connecting surface, and the second connecting surface extends along the second direction.

[0015] Optionally, the high beam lens has a Z-shaped structure, or an inverted Z-shaped structure.

[0016] Optionally, the first curved surface is a complete free-curved surface, and the first total reflection surface is a complete free-curved surface or a plane.

[0017] A high-beam lens module, comprising a high-beam total internal reflection lens unit and a high-beam lens unit;

[0018] The high-beam total internal reflection lens unit comprises a first light incident surface and a first reflection bowl surface, wherein the first light incident surface is a surface of the high-beam total internal reflection lens unit facing away from the high-beam lens unit, and the first reflection bowl surface is deflected toward the high-beam lens unit relative to the first light incident surface;

[0019] The high beam lens unit is the high beam lens described in any one of the above items;

[0020] The light emitted by the external light source is incident from the first light incident surface, converged to the first reflection bowl surface through the first light incident surface, and turned into intermediate parallel light after being reflected by the first reflection bowl surface. The intermediate parallel light is then reflected by the second total reflection surface and the first total reflection surface in sequence, and finally emitted from the first curved surface to form a high beam light pattern.

[0021] Optionally, the first light incident surface is saddle-shaped.

[0022] Optionally, the high-beam total internal reflection lens unit and the high-beam lens unit are an integrally formed structure.

[0023] Optionally, there are at least two high-beam total internal reflection lens units, and each of the high-beam total internal reflection lens units is arranged in parallel along the third direction;

[0024] Each of the high-beam total internal reflection lens units corresponds to the same high-beam lens unit.

[0025] A high-beam and low-beam lens module, comprising a high-beam lens module unit and a low-beam lens module unit;

[0026] The low beam lens module unit is used to form a low beam light pattern, and the low beam lens module unit includes a low beam elbow lens module unit and a low beam widening lens module unit, the low beam elbow lens module unit is used to form a low beam elbow cut-off line light pattern, the low beam widening lens module unit is used to form a low beam widening light pattern, and the low beam elbow cut-off line light pattern and the low beam widening light pattern are combined to form a low beam light pattern;

[0027] The high-beam lens module unit is used to form a high-beam light pattern, and the high-beam lens module unit is the high-beam lens module described in any one of the above items.

[0028] Optionally, the low beam elbow lens module unit includes a low beam elbow total internal reflection lens unit and a low beam elbow focusing lens unit;

[0029] The low beam elbow-shaped focusing lens unit and the high beam lens unit are an integrally formed structure, the low beam elbow-shaped focusing lens unit and the high beam lens unit share the first curved surface and the first total reflection surface, the low beam elbow-shaped focusing lens unit further comprises a third total reflection surface, the third total reflection surface and the first total reflection surface are arranged opposite to each other along the first direction, and the third total reflection surface and the second total reflection surface are arranged side by side along the third direction;

[0030] A beam of parallel light is incident on the first curved surface, converged by the first curved surface, and then reflected by the first total reflection surface and the third total reflection surface in sequence, and focused on a first focus; the distance between the geometric center of the first curved surface and the first focus along the second direction is greater than the distance between the geometric center of the second total reflection surface and the first focus along the second direction;

[0031] The low-beam elbow-shaped total internal reflection lens unit comprises a second light incident surface and a second reflection bowl surface, the second light incident surface is a surface of the low-beam elbow-shaped total internal reflection lens unit facing away from the low-beam elbow-shaped focusing lens unit, the second reflection bowl surface is deflected toward the low-beam elbow-shaped focusing lens unit relative to the second light incident surface, and the first focus is located on an edge of the second reflection bowl surface close to the second light incident surface;

[0032] The light emitted by the external light source is incident from the second light incident surface, converged to the second reflection bowl surface through the second light incident surface, reflected by the second reflection bowl surface, and then reflected by the third total reflection surface and the first total reflection surface in sequence, and finally emitted from the first curved surface. The shape of the second reflection bowl surface is projected as a low-beam elbow cutoff line light type, and the edge of the second reflection bowl surface close to the second light incident surface is projected as the cutoff line of the low-beam elbow cutoff line light type.

[0033] Optionally, the low beam elbow-shaped total internal reflection lens unit and the low beam elbow-shaped focusing lens unit are an integrally formed structure;

[0034] The first light incident surface and the second light incident surface are arranged side by side along the third direction, and the first reflective bowl surface and the second reflective bowl surface are arranged side by side along the third direction.

[0035] Optionally, the low beam widening lens module unit includes a low beam widening total internal reflection lens unit and a low beam widening focal line lens unit;

[0036] The low beam widening focal line lens unit and the high beam lens unit are an integrally formed structure, the low beam widening focal line lens unit and the high beam lens unit share the first curved surface and the first total reflection surface, the low beam widening focal line lens unit further includes a fourth total reflection surface, the fourth total reflection surface and the first total reflection surface are arranged opposite to each other along the first direction, and the fourth total reflection surface and the second total reflection surface are arranged side by side along the third direction;

[0037] A beam of parallel light is incident on the first curved surface, converged by the first curved surface, and then reflected by the first total reflection surface and the fourth total reflection surface in sequence, converged along the first direction, and parallel to the third direction, and converged on the first focal line;

[0038] The low beam widening total internal reflection lens unit comprises a third light incident surface and a third reflection bowl surface, the third light incident surface is a surface of the low beam widening total internal reflection lens unit away from the low beam widening focal line lens unit, the third reflection bowl surface is deflected toward the low beam widening focal line lens unit relative to the third light incident surface, and the first focal line is located on an edge of the third reflection bowl surface close to the third light incident surface;

[0039] The light emitted by the external light source is incident on the third light incident surface, converged to the third reflection bowl surface through the third light incident surface, reflected by the third reflection bowl surface, and then reflected by the fourth total reflection surface and the first total reflection surface in sequence, and finally emitted from the first curved surface. The shape of the third reflection bowl surface is projected as a low beam widened light type, and the edge of the third reflection bowl surface close to the third light incident surface is projected as the cutoff line of the low beam widened light type.

[0040] Optionally, the low beam widening total internal reflection lens unit and the low beam widening focal line lens unit are an integrated structure;

[0041] The first light incident surface and the third light incident surface are arranged side by side along the third direction, and the first reflective bowl surface and the third reflective bowl surface are arranged side by side along the third direction.

[0042] Optionally, there are two low-beam widening total internal reflection lens units, the two low-beam widening total internal reflection lens units are adjacently arranged in parallel along the third direction, and the two low-beam widening total internal reflection lens units are symmetrically arranged along the second direction;

[0043] The two low-beam widening total internal reflection lens units correspond to the same low-beam widening focal line lens unit.

[0044] A lighting module comprises a light source module and a high and low beam lens module, wherein the light source module comprises a plurality of light sources, and the high and low beam lens module is any one of the high and low beam lens modules described above.

[0045] Compared with the prior art, the above technical solution has the following advantages:

[0046] The high-beam lens provided in the embodiment of the present application is an integrated structure, including a first curved surface, a first total reflection surface, and a second total reflection surface. The first total reflection surface and the second total reflection surface are arranged opposite to each other along a first direction, and the first curved surface is located on a side of the first total reflection surface along the second direction, and the first direction and the second direction are perpendicular. A first parallel light is incident on the first curved surface, converged by the first curved surface, and then reflected by the first total reflection surface and the second total reflection surface in sequence, converged along the first direction, and converged along a third direction to become a second parallel light. The second parallel light is emitted toward the second total reflection surface along the second direction away from the first curved surface. The third direction is perpendicular to the first direction and the second direction. The first direction, the second direction and the third direction constitute a three-dimensional coordinate system. In this way, the first curved surface is mainly used to reflect the first parallel light incident from the first curved surface. A parallel light is converged along a first direction (i.e., longitudinally), the second total reflection surface is mainly used to converge the first parallel light incident from the first curved surface and the light beam reflected by the first total reflection surface along a third direction (i.e., transversely), the first total reflection surface is mainly used to match the first curved surface and the second total reflection surface, and also plays a role of partial convergence, the first total reflection surface and the second total reflection surface also play a role of folding the light path; and the ratio of the width of the first parallel light along the first direction to the width of the second parallel light along the first direction (characterizing the longitudinal convergence degree) is greater than the ratio of the width of the first parallel light along the third direction to the width of the second parallel light along the third direction (characterizing the transverse convergence degree), that is, the longitudinal convergence degree is greater than the transverse convergence degree; thus, the high beam lens provided in the embodiment of the present application has the following technical effects:

[0047] First, through the integrally formed high-beam lens, the longitudinal convergence degree is greater than the lateral convergence degree, which is equivalent to the separation of lateral and longitudinal focusing, and the longitudinal focal length is greater than the lateral focal length, so as to facilitate the realization of a high-beam light pattern that is wide in the lateral direction and narrow in the longitudinal direction, and is also conducive to narrowing the opening size of the first curved surface as the light-emitting surface along the first direction (i.e., the longitudinal direction). For example, the size of the first curved surface along the first direction (i.e., the longitudinal direction) can be about 10 mm;

[0048] Second, the one-piece high-beam lens is a single-layer lens structure, which is equivalent to integrating the outer lens and inner lens in the traditional solution into one, effectively reducing Fresnel loss, and using total reflection to fold the light path and shorten the size, thereby reducing the volume and weight of the lens while improving the light efficiency, which is beneficial to energy saving and cost saving;

[0049] Third, the one-piece high beam lens is a single-layer lens structure with less refraction, so the projected light has small dispersion and good color uniformity;

[0050] Fourth, the first curved surface can be a complete free-form surface, and the first total reflection surface can be a complete free-form surface or a plane, so that the static appearance of the lens is consistent, which is conducive to meeting different modeling requirements such as horizontal long strip module modeling;

[0051] Fifth, the one-piece high-beam lens can also avoid the problem of burns caused by the focusing of multiple layers of lenses due to the access to sunlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0053] Figure 1 A schematic side view of a high beam lens provided in an embodiment of the present application;

[0054] Figure 2 A schematic side view of another high beam lens provided in an embodiment of the present application;

[0055] Figure 3 for Figure 1 A bottom-up schematic diagram of a high-beam lens is shown;

[0056] Figure 4 for Figure 1 A schematic top view of a high beam lens is shown;

[0057] Figure 5 A schematic side view of a high beam lens module provided in an embodiment of the present application;

[0058] Figure 6 for Figure 5 An oblique top view schematic diagram of a high beam lens module is shown;

[0059] Figure 7 A schematic diagram of a light tracing side view of a high beam lens module provided in an embodiment of the present application;

[0060] Figure 8 A schematic top view of a high beam lens module provided by an embodiment of the present application;

[0061] Figure 9a A bottom view schematic diagram of a high beam lens module provided in an embodiment of the present application;

[0062] Figure 9b A schematic top view of a high beam lens module provided in an embodiment of the present application;

[0063] Fig.10 A schematic diagram of an oblique side view of a high and low beam lens module provided in an embodiment of the present application;

[0064] Fig.11Another oblique side view schematic diagram of a high and low beam lens module provided in an embodiment of the present application;

[0065] Fig.12 A schematic diagram of another oblique side view of a high and low beam lens module provided in an embodiment of the present application;

[0066] Fig.13 A bottom view schematic diagram of a high and low beam lens module provided in an embodiment of the present application;

[0067] Fig.14 A schematic top view of a high and low beam lens module provided in an embodiment of the present application;

[0068] Fig.15 A schematic diagram of a front side view of a high and low beam lens module provided in an embodiment of the present application;

[0069] Fig.16 A schematic side view of a low beam elbow lens module unit provided in an embodiment of the present application;

[0070] Fig.17 A schematic side view of a low beam elbow-shaped focusing lens unit provided in an embodiment of the present application;

[0071] Fig.18 A schematic side view of another low beam elbow-shaped focusing lens unit provided in an embodiment of the present application;

[0072] Fig.19 for Fig.17 A bottom view schematic diagram of a low beam elbow-shaped focusing lens unit shown;

[0073] Fig. 20 A schematic side view of a low beam widening lens module unit provided in an embodiment of the present application;

[0074] Fig.21 A schematic side view of a low beam focal line widening lens unit provided in an embodiment of the present application;

[0075] Fig. 22 A schematic side view of another low beam focal line widening lens unit provided in an embodiment of the present application;

[0076] Fig.23 for Fig.21 A bottom view schematic diagram of a low beam focal line widening lens unit is shown.

[0077] Reference numerals:

[0078] 100-first curved surface; 200-first total reflection surface; 320-second total reflection surface; S1-first connecting surface; S2-second connecting surface; 101-first side; 102-second side, Z-first direction; X-second direction; Y-third direction; 500-light source; 421-first light incident surface; 422-first reflection bowl surface; HB1-high beam total internal reflection lens unit; HB2-high beam lens unit; HB-high beam lens module unit; LB-low beam lens module unit; Kink-low beam elbow Lens module unit; Flat-low beam widening lens module unit; Kink1-low beam elbow-shaped total internal reflection lens unit; Kink2-low beam elbow-shaped focusing lens unit; 311-third total reflection surface; F-first focus; 411-second light incident surface; 412-second reflection bowl surface; Flat1-low beam widening total internal reflection lens unit; Flat2-low beam widening focal line lens unit; 312-fourth total reflection surface; FF-first focal line; 413-third light incident surface; 414-third reflection bowl surface. DETAILED DESCRIPTION

[0079] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0080] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0081] Secondly, the present application is described in detail with reference to the schematic diagrams. When describing the embodiments of the present application in detail, for the sake of convenience, the drawings showing the optical structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present application. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0082] As described in the background technology section, the existing high beam lighting lens module has the following disadvantages:

[0083] First, because the single-layer single-focus lens has the same degree of focus in the horizontal and vertical directions, the controllability of the high beam light shape that is flat up and down and wide left and right is poor;

[0084] Second, single-layer single-focus lenses are limited by the opening size and volume weight. Once the horizontal opening is longer, the lens thickness will increase accordingly, and the lens weight will also increase, which is not conducive to lightweight lens modules, energy saving and cost saving, and is not conducive to forming a horizontal long strip module shape, which has become one of the development trends of the industry;

[0085] Third, the single-layer multifocal lens is composed of multiple single-layer single-focal lenses, which results in a poor overall static appearance of the lens;

[0086] Fourth, in the existing high beam lighting lens module, the inner lens and the outer lens are separated, and the light emitted by the light source needs to pass through different media such as the inner lens, air, and the outer lens, resulting in large Fresnel loss and severe dispersion.

[0087] In view of this, an embodiment of the present application provides a high beam lens. Figure 1 and Figure 2 Schematic side views of two high beam lenses provided in the embodiments of the present application are shown respectively. Figure 1 and Figure 2 As shown, the high beam lens is an integrated structure, and the high beam lens includes a first curved surface 100, a first total reflection surface 200 and a second total reflection surface 320. The first total reflection surface 200 and the second total reflection surface 320 are arranged opposite to each other along the first direction Z. The first curved surface 100 is located on one side of the first total reflection surface 200 along the second direction X. The first direction Z and the second direction X are perpendicular. The third direction Y is perpendicular to the first direction Z and to the second direction X. The first direction Z, the second direction X and the third direction Y constitute a three-dimensional coordinate system, wherein the plane formed by the second direction X and the third direction Y is a horizontal plane, the first direction Z is a longitudinal direction, that is, the longitudinal direction in which the high beam light pattern projected by the high beam lens is narrow, and the third direction Y is the transverse direction in which the high beam light pattern projected by the high beam lens is wide.

[0088] like Figure 1 and Figure 2 As shown, the first parallel light is incident on the first curved surface 100, converged by the first curved surface 100, and then reflected by the first total reflection surface 200 and the second total reflection surface 320 in sequence, converged along the first direction Z, and converged along the third direction Y to become the second parallel light. The second parallel light is emitted toward the second total reflection surface 320 along the second direction X away from the first curved surface 100.

[0089] Among them, the first curved surface 100 is mainly used to converge the first parallel light incident from the first curved surface 100 along the first direction Z (i.e., longitudinal direction); the second total reflection surface 320 is mainly used to converge the light beam of the first parallel light incident from the first curved surface 100 after being reflected by the first total reflection surface 200 along the third direction Y (i.e., transverse direction); the first total reflection surface 200 is mainly used to match the first curved surface 100 and the second total reflection surface 320, and also plays a role of partial convergence; the first total reflection surface 200 and the second total reflection surface 320 also play a role of folding the light path.

[0090] Optionally, the first curved surface 100 may be a convex surface along the first direction Z (ie, the longitudinal direction) so as to converge the first parallel light incident from the first curved surface 100 along the first direction Z (ie, the longitudinal direction).

[0091] Optionally, the first total reflection surface 200 may be a curved surface or a flat surface.

[0092] Optionally, the second total reflection surface 320 may be a concave surface along the third direction Y (ie, horizontal direction) so as to converge the light beam of the first parallel light incident from the first curved surface 100 after being reflected by the first total reflection surface 200 along the third direction (ie, horizontal direction).

[0093] However, the present application does not limit the shapes of the first curved surface 100 , the first total reflection surface 200 , and the second total reflection surface 320 , which depends on specific circumstances.

[0094] In practical applications, the first curved surface 100 is the light emitting surface, i.e., the outermost transparent molding surface of the high beam lens. According to the principle of optical path reversibility, the incident light is incident on the second total reflection surface 320, and after being reflected by the second total reflection surface 320 and the first total reflection surface 200 in sequence, it is emitted from the first curved surface 100 to form a high beam light pattern.

[0095] Figure 3 Shows Figure 1 The schematic diagram of the high beam lens as shown in FIG. Figure 4 Shows Figure 1 The schematic diagram of the top view of the high beam lens shown in FIG. Figure 1 , Figure 3 and Figure 4As shown, the ratio of the width of the first parallel light along the first direction Z to the width of the second parallel light along the first direction Z represents the degree of convergence of the high beam lens on the parallel light incident from the first curved surface 100 along the first direction Z (i.e., longitudinal direction), and the ratio of the width of the first parallel light along the third direction Y to the width of the second parallel light along the third direction Y represents the degree of convergence of the high beam lens on the parallel light incident from the first curved surface 100 along the third direction Y (i.e., transverse direction), and the ratio of the width of the first parallel light along the first direction Z to the width of the second parallel light along the first direction Z is greater than the ratio of the width of the first parallel light along the third direction Y to the width of the second parallel light along the third direction Y, that is, the longitudinal degree of convergence of the high beam lens on the parallel light incident from the first curved surface 100 is greater than the transverse degree, which is equivalent to transverse and longitudinal focusing separation, and the longitudinal focal length is greater than the transverse focal length.

[0096] Therefore, the high beam lens provided in the embodiment of the present application has the following technical effects:

[0097] First, through the integrally formed high-beam lens, the longitudinal convergence degree is greater than the lateral convergence degree, which is equivalent to the separation of lateral and longitudinal focusing, and the longitudinal focal length is greater than the lateral focal length, so as to facilitate the realization of a high-beam light pattern that is wide in the lateral direction and narrow in the longitudinal direction, and is also conducive to narrowing the opening size of the first curved surface 100 as the light-emitting surface along the first direction Z (i.e., the longitudinal direction). For example, the size of the first curved surface 100 along the first direction Z (i.e., the longitudinal direction) can be about 10 mm;

[0098] Second, the one-piece high-beam lens is a single-layer lens structure, which is equivalent to integrating the outer lens and inner lens in the traditional solution into one, effectively reducing Fresnel loss, and using total reflection to fold the light path and shorten the size, thereby reducing the volume and weight of the lens while improving the light efficiency, which is beneficial to energy saving and cost saving;

[0099] Third, the one-piece high beam lens is a single-layer lens structure with less refraction, so the projected light has small dispersion and good color uniformity;

[0100] Fourth, the first curved surface 100 can be a complete free-form surface, and the first total reflection surface 200 can be a complete free-form surface or a plane, so that the static appearance of the lens is consistent, which is conducive to meeting different modeling requirements such as horizontal long strip module modeling;

[0101] Fifth, the one-piece high-beam lens can also avoid the problem of burns caused by the focusing of multiple layers of lenses due to the access to sunlight.

[0102] Optional, such as Figure 1 and Figure 2As shown, the first curved surface 100 has a first edge 101 and a second edge 102 that are arranged opposite to each other along the first direction Z; the first edge 101 of the first curved surface 100 is connected to the first total reflection surface 200 through a first connecting surface S1, and the first connecting surface S1 extends along the second direction X; the second edge 102 of the first curved surface 100 is connected to the second total reflection surface 320 through a second connecting surface S2, and the second connecting surface S2 extends along the second direction X. In other words, the first curved surface 100 is connected to the first total reflection surface 200 and the second total reflection surface 320 respectively through a thick-walled structure between the first connecting surface S1 and the second connecting surface S2. Such an arrangement is more conducive to forming a high-beam light type that is wide in the horizontal direction and narrow in the vertical direction, and on the other hand, the first curved surface 100 extends along the second direction X, making the appearance design of the high-beam lens more free.

[0103] It can be understood that the lengths of the first connecting surface S1 and the second connecting surface S2 extending along the second direction X can be set according to needs.

[0104] Alternatively, the first edge 101 of the first curved surface 100 may be directly connected to the first total reflection surface 200, and the second edge 102 of the first curved surface 100 may be directly connected to the second total reflection surface 320. Such an arrangement can shorten the path of the light beam transmitted in the lens and further improve the light efficiency.

[0105] On the basis that the first edge 101 of the first curved surface 100 is connected to the first total reflection surface 200 through the first connecting surface S1, and the second edge 102 of the first curved surface 100 is connected to the second total reflection surface 320 through the second connecting surface S2, optionally, as Figure 1 As shown, the high beam lens is in a Z-shaped structure; another option is as follows Figure 2 As shown, the high beam lens is in an inverted Z-shaped structure. Regardless of whether the high beam lens is in a Z-shaped structure or an inverted Z-shaped structure, the high beam lens can fold the light path, shorten the size, effectively reduce the Fresnel loss, and reduce the volume and weight of the lens while improving the light effect, which is beneficial to energy saving and cost saving.

[0106] As is known from the above, the first curved surface 100 is the light emitting surface; the first parallel light incident from the first curved surface 100 is first reflected by the first total reflection surface 200, and then reflected by the second total reflection surface 320 to become the second parallel light. Therefore, the first total reflection surface 200 can also be the outer shape surface of the high beam lens; the first curved surface 100 can be a complete free-form surface, and the first total reflection surface 200 can be a complete free-form surface or a plane, so that the outer surface design of the lens is more free, the static appearance consistency is good, and different styling requirements can be met.

[0107] Optionally, the high beam lens may be a transparent optical element made of PMMA (polymethyl methacrylate) or PC (polycarbonate).

[0108] Based on the same inventive concept, the embodiment of the present application also provides a high beam lens module, Figure 5 A schematic side view of a high beam lens module provided in an embodiment of the present application is shown. Figure 6 Shows Figure 5 The oblique top view of the high beam lens module is shown in FIG. Figure 5 and Figure 6 As shown, the high beam lens module includes a high beam total internal reflection (Total Internal Reflection, referred to as TIR) lens unit HB1 and a high beam lens unit HB2.

[0109] like Figure 5 and Figure 6 As shown, the high beam total internal reflection lens unit HB1 includes a first light incident surface 421 and a first reflection bowl surface 422. The first light incident surface 421 is the surface of the high beam total internal reflection lens unit HB1 away from the high beam lens unit HB2, and the first reflection bowl surface 422 is deflected toward the high beam lens unit HB2 relative to the first light incident surface 421.

[0110] like Figure 5 and Figure 6 As shown, the high-beam lens unit HB2 is the high-beam lens provided by any of the aforementioned embodiments.

[0111] refer to Figure 5 and Figure 6 As shown, the light emitted by the external light source 500 is incident on the first light incident surface 421, converged to the first reflection bowl surface 422 through the first light incident surface 421, and turned into intermediate parallel light after being reflected by the first reflection bowl surface 422. The intermediate parallel light is then reflected by the second total reflection surface 320 and the first total reflection surface 200 in sequence, and finally emitted from the first curved surface 100 to form a high beam light pattern.

[0112] The first light incident surface 421 mainly plays the role of collecting and focusing light; the first reflective bowl surface 422 is a total reflection free-form surface, which mainly plays the role of collecting and focusing light and forming intermediate parallel light. In addition, the high beam total internal reflection lens unit HB1 and the high beam lens unit HB2 are matched and coupled with each other, so as to finally project a high beam light pattern with sufficient light intensity and a wide width in the horizontal direction and a narrow width in the vertical direction.

[0113] It should be noted that, in the present application, the light rays in the first parallel light, the second parallel light and the intermediate parallel light are mutually parallel and / or approximately parallel, that is, substantially parallel. In addition, the light rays emitted by the external light source 500 are incident from the first light incident surface 421, converged to the first reflection bowl surface 422 through the first light incident surface 421, and formed into intermediate parallel light after being reflected by the first reflection bowl surface 422. After the intermediate parallel light is reflected by the second total reflection surface 320 and the first total reflection surface 200 in turn, the high beam light pattern formed has a better parallel effect than the intermediate parallel light.

[0114] Optionally, the first light incident surface 421 is saddle-shaped. Figure 5 As shown, the first light incident surface 421 is convex when viewed from the side; Figure 6 As shown, the first light incident surface 421 is concave when viewed from an oblique top view; with such a configuration, the first light incident surface 421 can converge the light emitted by the light source 500, so that the light beam incident on the first reflection bowl 422 is reduced, thereby reducing the area of ​​the first reflection bowl 422, thereby improving the light efficiency, weakening the dispersion, and also helping to reduce the volume of the high-beam total internal reflection lens unit HB1, thereby reducing the overall volume of the high-beam lens module.

[0115] Optional, such as Figure 5 and Figure 6 As shown, the high beam total internal reflection lens unit HB1 and the high beam lens unit HB2 are an integrally formed structure, so that the high beam total internal reflection lens unit HB1 and the high beam lens unit HB2 are combined into an integral lens, which can further shorten the size chain, further reduce Fresnel loss, and improve optical efficiency.

[0116] Specifically, Figure 5 and Figure 6 As shown, the first total reflection surface 200 and the first reflection bowl surface 422 can be connected directly or through a connecting surface, and the second total reflection surface 320 and the first light incident surface 421 can be connected through a connecting surface. In this way, the light emitted by the external light source 500 is incident on the first light incident surface 421, transmitted inside the one-piece lens, and is reflected by the first reflection bowl surface 422, the second total reflection surface 320, and the first total reflection surface 200 in turn, and finally emitted from the first curved surface 100. The optical path is short, the Fresnel loss is small, and the optical efficiency is high.

[0117] Alternatively, the high-beam total internal reflection lens unit HB1 and the high-beam lens unit HB2 may also be separate structures, depending on the specific situation.

[0118] In order to better understand this application, Figure 7 A schematic diagram of a light tracing side view of a high beam lens module provided in an embodiment of the present application is shown. Figure 8 A light tracing top view schematic diagram of a high-beam lens module provided in an embodiment of the present application is shown. It can be seen that the light emitted by the external light source 500 is incident from the first light incident surface 421, converges to the first reflection bowl surface 422 through the first light incident surface 421, and after being reflected by the first reflection bowl surface 422, is reflected by the second total reflection surface 320 and the first total reflection surface 200 in sequence, and is finally emitted from the first curved surface 100 to form a high-beam light pattern.

[0119] Optional, such as Figure 9a and Figure 9b As shown, Figure 9a FIG. 1 shows a bottom view schematic diagram of a high beam lens module provided in an embodiment of the present application. Figure 9b A schematic top view of a high beam lens module provided in an embodiment of the present application is shown, and it can be seen that in the high beam lens module, there can be at least two high beam total internal reflection lens units HB1, and each high beam total internal reflection lens unit HB1 is arranged in parallel along the third direction Y, and each high beam total internal reflection lens unit HB1 corresponds to the same high beam lens unit HB2, that is, each high beam total internal reflection lens unit HB1 corresponds to the same second total reflection surface 320, first total reflection surface 200 and first curved surface 100, or in other words, the light emitted by the external light source 500 passes through the corresponding high beam total internal reflection lens unit HB1 to form intermediate parallel light, and then is reflected by the same second total reflection surface 320 and the same first total reflection surface 200, and is uniformly emitted from the first curved surface 100.

[0120] It can be understood that there are at least two high-beam total internal reflection lens units HB1, and the high-beam total internal reflection lens units HB1 are arranged in parallel along the third direction Y, which is conducive to expanding the output light pattern along the third direction Y (ie, horizontally).

[0121] It should be noted that when there are at least two high-beam total internal reflection lens units HB1, each high-beam total internal reflection lens unit HB1 may be an integrally formed structure, and each high-beam total internal reflection lens unit HB1 may also be an integrally formed structure with the high-beam lens unit HB2.

[0122] Other optional, in the high beam lens module, such as Figure 6 As shown, there may be one high-beam total internal reflection lens unit HB1, depending on the specific circumstances.

[0123] It should be noted that in the high beam lens module provided in the embodiment of the present application, the high beam lens unit HB2 may be a Z-shaped structure or an inverted Z-shaped structure. Figure 5 The high beam lens module shown is demonstrated by taking the high beam lens unit HB2 having a Z-shaped structure as an example. The high beam lens module including the high beam lens unit HB2 having an inverted Z-shaped structure can be adaptively adjusted, which will not be described in detail.

[0124] Accordingly, the embodiment of the present application also provides a high and low beam lens module, Fig.10 , Fig.11 and Fig.12 Schematic diagrams of three oblique side viewing angles of a high and low beam lens module provided in an embodiment of the present application are respectively shown, Fig.13 A bottom view schematic diagram of a high and low beam lens module provided in an embodiment of the present application is shown. Fig.14 A schematic top view of a high and low beam lens module provided in an embodiment of the present application is shown. Fig.15The schematic diagram of the structure of the front side view angle of a high and low beam lens module provided by the embodiment of the present application is shown as follows: Figure 10-Figure 15 As shown, the high and low beam lens module includes a high beam lens module unit HB and a low beam lens module unit LB, wherein the low beam lens module unit LB is used to form a low beam light pattern; the high beam lens module unit HB is used to form a high beam light pattern, and the high beam lens module unit HB is the high beam lens module provided by any of the aforementioned embodiments.

[0125] like Figure 10-Figure 15 As shown, the low beam lens module unit LB includes a low beam elbow lens module unit Kink and a low beam widening lens module unit Flat; the low beam elbow lens module unit Kink is used to form a low beam elbow cutoff line light pattern, and the low beam widening lens module unit Flat is used to form a low beam widening light pattern, and the low beam elbow cutoff line light pattern and the low beam widening light pattern are combined to form the low beam light pattern.

[0126] Optional, Fig.16 A schematic side view of a low beam elbow lens module unit Kink provided in an embodiment of the present application is shown, combined with Figure 10-Figure 16 As shown, the low beam elbow lens module unit Kink includes a low beam elbow total internal reflection (Total Internal Reflection, referred to as TIR) lens unit Kink1 and a low beam elbow focusing lens unit Kink2.

[0127] Fig.17 and Fig.18 Schematic side views of two low-beam elbow-shaped focusing lens units Kink2 provided in the embodiments of the present application are shown respectively, Fig.19 Shows Fig.17 The bottom view of the low beam elbow focusing lens unit Kink2 shown in FIG. Figure 10-Figure 19 As shown, the low beam elbow-shaped focusing lens unit Kink2 and the high beam lens unit HB2 are an integrally formed structure, and the low beam elbow-shaped focusing lens unit Kink2 and the high beam lens unit HB2 share the first curved surface 100 and the first total reflection surface 200, and the low beam elbow-shaped focusing lens unit Kink2 also includes a third total reflection surface 311, and the third total reflection surface 311 and the first total reflection surface 200 are arranged opposite to each other along the first direction Z, and the third total reflection surface 311 and the second total reflection surface 320 are arranged side by side along the third direction Y.

[0128] like Figure 17-Figure 19As shown, a beam of parallel light is incident on the first curved surface 100, converged by the first curved surface 100, and then reflected by the first total reflection surface 200 and the third total reflection surface 311 in sequence, and focused on the first focus F. The first focus F is located on the side of the third total reflection surface 311 away from the first curved surface 100 along the second direction X; the distance L between the geometric center of the first curved surface 100 and the first focus F along the second direction X is greater than the distance l between the geometric center of the third total reflection surface 311 and the first focus F along the second direction X, the distance L between the geometric center of the first curved surface 100 and the first focus F along the second direction X is the longitudinal focal length, and the distance l between the geometric center of the third total reflection surface 311 and the first focus F along the second direction X is the transverse focal length, that is, the longitudinal focal length is greater than the transverse focal length.

[0129] Similar to the high beam lens unit HB2, in the low beam elbow focusing lens unit Kink2, the first curved surface 100 is mainly used to focus the parallel light incident from the first curved surface 100 along the first direction Z (i.e., longitudinal direction); the third total reflection surface 311 is mainly used to focus the light beam of the parallel light incident from the first curved surface 100 after being reflected by the first total reflection surface 200 along the third direction Y (i.e., transverse direction); the first total reflection surface 200 is mainly used to match the first curved surface 100 and the third total reflection surface 311, and also plays a role of partial focusing; the first total reflection surface 200 and the third total reflection surface 311 also play a role of folding the light path.

[0130] Optionally, the third total reflection surface 311 may be a concave surface along the third direction Y (ie, transverse direction) to facilitate focusing of the parallel light incident from the first curved surface 100 and reflected by the first total reflection surface 200 along the third direction Y (ie, transverse direction).

[0131] The low beam elbow-shaped focusing lens unit Kink2 provided in the embodiment of the present application has the following technical effects:

[0132] First, the horizontal and vertical focusing separation is achieved through the integrally formed focusing lens structure, and the vertical focal length is greater than the horizontal focal length, so as to facilitate the realization of a low beam elbow cut-off line light type that is wide in the horizontal direction and narrow in the vertical direction, and is also conducive to narrowing the opening size of the first curved surface 100 as the light emitting surface along the first direction Z (i.e., the vertical direction). For example, the size of the first curved surface 100 along the first direction Z (i.e., the vertical direction) can be about 10 mm;

[0133] Second, the one-piece focusing lens is a single-layer lens structure, which is equivalent to integrating the outer lens and the inner lens in the traditional solution into one, effectively reducing Fresnel loss, and using total reflection to fold the light path and shorten the size, thereby reducing the volume and weight of the lens while improving the light efficiency, which is beneficial to energy saving and cost saving;

[0134] Third, the one-piece focusing lens is a single-layer lens structure with less refraction, so that the projected light has small dispersion and good color uniformity;

[0135] Fourth, the first curved surface 100 can be a complete free-form surface, and the first total reflection surface 200 can be a complete free-form surface or a plane, so that the static appearance of the lens is consistent, which is conducive to meeting different modeling requirements such as horizontal long strip module modeling;

[0136] Fifth, the one-piece focusing lens can also avoid the problem of burns caused by the focusing of multiple layers of lenses due to the access to sunlight.

[0137] Optional, such as Fig.17 As shown, the low beam elbow focusing lens unit Kink2 has a Z-shaped structure; another option is as follows: Fig.18 As shown, the low beam elbow-shaped focusing lens unit Kink2 has an inverted Z-shaped structure.

[0138] Optionally, the low beam elbow-shaped focusing lens unit Kink2 may be a transparent optical element made of PMMA (polymethyl methacrylate) or PC (polycarbonate).

[0139] It can be understood that, since the low beam elbow-shaped focusing lens unit Kink2 and the high beam lens unit HB2 are an integrally formed structure, the low beam elbow-shaped focusing lens unit Kink2 and the high beam lens unit HB2 share the first curved surface 100 and the first total reflection surface 200. Therefore, when the first side 101 of the first curved surface 100 is connected to the first total reflection surface 200 through the first connecting surface S1, and the second side 102 of the first curved surface 100 is connected to the second total reflection surface 320 through the second connecting surface S2, the second side 101 of the first curved surface 100 is connected to the second total reflection surface 320 through the second connecting surface S2. 2 is also connected to the third total reflection surface 311 through the second connecting surface S2, which is also conducive to forming a low-beam elbow-shaped cut-off line light type that is wide in the horizontal direction and narrow in the vertical direction, and the lens appearance design is more free; when the first edge 101 of the first curved surface 100 is directly connected to the first total reflection surface 200, and the second edge 102 of the first curved surface 100 is directly connected to the second total reflection surface 320, the second edge 102 of the first curved surface 100 is also directly connected to the third total reflection surface 311, so that the transmission path of the light beam in the lens can be shortened, and the light efficiency can be further improved.

[0140] like Figure 10-Figure 16 As shown, the low beam elbow shaped total internal reflection lens unit Kink1 includes a second light incident surface 411 and a second reflection bowl surface 412, the second light incident surface 411 is the surface of the low beam elbow shaped total internal reflection lens unit Kink1 facing away from the low beam elbow shaped focusing lens unit Kink2, the second reflection bowl surface 412 is deflected toward the low beam elbow shaped focusing lens unit Kink2 relative to the second light incident surface 411, and the first focus F is located on the edge 601 of the second reflection bowl surface 412 close to the second light incident surface 411.

[0141] refer to Figure 10-Figure 16As shown, the light emitted by the external light source 500 is incident on the second light incident surface 411, converged to the second reflection bowl surface 412 through the second light incident surface 411, reflected by the second reflection bowl surface 412, and then reflected by the third total reflection surface 311 and the first total reflection surface 200 in sequence, and finally emitted from the first curved surface 100. The shape of the second reflection bowl surface 412 is projected as a low beam elbow cutoff line light type, and the edge of the second reflection bowl surface 412 close to the second light incident surface 411 is projected as the cutoff line of the low beam elbow cutoff line light type.

[0142] Among them, the second light incident surface 411 mainly plays the role of collecting and focusing light; the second reflection bowl surface 412 is a total reflection free-form surface, which mainly plays the role of collecting and focusing light and forming a low-beam elbow-shaped cut-off line light type.

[0143] Optional, such as Figure 10-Figure 16 As shown, the low beam elbow-shaped total internal reflection lens unit Kink1 and the low beam elbow-shaped focusing lens unit Kink2 are an integrated structure, which can further shorten the dimension chain, further reduce the Fresnel loss, and improve the optical efficiency.

[0144] Furthermore, as is known above, the high beam lens unit HB2 and the high beam total internal reflection lens unit HB1 can also be an integrally formed structure. In this way, the high beam lens module unit HB composed of the high beam lens unit HB2 and the high beam total internal reflection lens unit HB1, and the low beam elbow shaped lens module unit Kink composed of the low beam elbow shaped total internal reflection lens unit Kink1 and the low beam elbow shaped focusing lens unit Kink2 can be an integral lens structure, which is beneficial to reducing the volume of the high and low beam lens modules.

[0145] It is understandable that if Figure 10-Figure 15 As shown, the first light incident surface 421 and the second light incident surface 411 are arranged side by side along the third direction Y, and the first reflective bowl surface 422 and the second reflective bowl surface 412 are arranged side by side along the third direction Y.

[0146] Alternatively, the low-beam elbow-shaped total internal reflection lens unit Kink1 and the low-beam elbow-shaped focusing lens unit Kink2 may also be separate structures, depending on the specific situation.

[0147] Optional, Fig. 20 A side view schematic diagram of a low beam widening lens module unit Flat provided in an embodiment of the present application is shown, combined with Figure 10-Figure 15 as well as Fig. 20 As shown, the low beam widening lens module unit Flat includes a low beam widening total internal reflection (Total Internal Reflection, referred to as TIR) lens unit Flat1 and a low beam widening focal line lens unit Flat2.

[0148] Fig.21 and Fig. 22 Schematic side views of two low-beam focal line widening lens units Flat2 provided in the embodiments of the present application are shown respectively, Fig.23 Shows Fig.21 The bottom view of the low beam focal line widening lens unit Flat2 shown in FIG. Figure 21-23 As shown, the low beam widening focal line lens unit Flat2 and the high beam lens unit HB2 are an integrally formed structure, the low beam widening focal line lens unit Flat2 and the high beam lens unit HB2 share the first curved surface 100 and the first total reflection surface 200, the low beam widening focal line lens unit Flat2 also includes a fourth total reflection surface 312, the fourth total reflection surface 312 and the first total reflection surface 200 are arranged relative to each other along the first direction Z, and the fourth total reflection surface 312 and the second total reflection surface 320 are arranged side by side along the third direction Y.

[0149] like Figure 21-23 As shown, a beam of parallel light is incident on the first curved surface 100, converged by the first curved surface 100, and then reflected by the first total reflection surface 200 and the fourth total reflection surface 312 in sequence, converged along the first direction Z, and parallel along the third direction Y, converged on the first focal line FF, the first focal line FF is located on the side of the fourth total reflection surface 312 away from the first curved surface 100 along the second direction X, and the first focal line FF extends along the third direction Y.

[0150] In the low-beam widening focal line lens unit Flat2, the first curved surface 100 is mainly used to focus the parallel light incident from the first curved surface 100 along the first direction Z (i.e., longitudinal direction); the first total reflection surface 200 and the fourth total reflection surface 312 are used to match the first curved surface 100, and also play the role of partial focusing and folding the light path; that is, the low-beam widening focal line lens unit Flat2 mainly realizes the longitudinal focusing of the parallel light incident from the first curved surface 100.

[0151] Optionally, the fourth total reflection surface 312 may be a curved surface or a flat surface.

[0152] In practical applications, combined with Figure 10-Figure 15 as well as Fig. 20 As shown, the light emitted by the external light source 500 will first pass through the low beam widening total internal reflection lens unit Flat1, and then be incident on the low beam widening focal line lens unit Flat2. Therefore, focusing along the third direction Y (i.e., horizontal) can be additionally achieved through the low beam widening total internal reflection lens structure, thereby achieving horizontal and vertical focusing separation, and the longitudinal focal length is greater than the transverse focal length.

[0153] The low beam focal line widening lens unit Flat2 provided in the embodiment of the present application has the following technical effects:

[0154] First, the longitudinal focusing is realized as a focal line through the integrally formed focal line lens structure, and the transverse focusing can be realized by the low beam widening total internal reflection lens structure, so that the horizontal and vertical focusing are separated, and the longitudinal focusing is greater than the transverse focal length, which is convenient for realizing the low beam widening light type with a wide transverse direction and a narrow longitudinal direction, and is also conducive to narrowing the opening size of the first curved surface 100 as the light emitting surface along the first direction Z (i.e., the longitudinal direction). For example, the size of the first curved surface 100 along the first direction Z (i.e., the longitudinal direction) can be about 10 mm;

[0155] Second, the one-piece focal line lens is a single-layer lens structure, which is equivalent to integrating the outer lens and the inner lens in the traditional solution into one, effectively reducing Fresnel loss, and using total reflection to fold the light path and shorten the size, thereby reducing the volume and weight of the lens while improving the light efficiency, which is beneficial to energy saving and cost saving;

[0156] Third, the one-piece focal line lens is a single-layer lens structure with less refraction, so the projected light has small dispersion and good color uniformity;

[0157] Fourth, the first curved surface 100 can be a complete free-form surface, and the first total reflection surface 200 can be a complete free-form surface or a plane, so that the static appearance of the lens is consistent, which is conducive to meeting different modeling requirements such as horizontal long strip module modeling;

[0158] Fifth, the one-piece focal line lens can also avoid the problem of burns caused by the focusing of multi-layer lenses due to the access to sunlight.

[0159] Optional, such as Fig.21 As shown, the low beam focal line widening lens unit Flat2 is in a Z-shaped structure; another option is as follows: Fig. 22 As shown, the low beam focal line widening lens unit Flat2 has an inverted Z-shaped structure.

[0160] Optionally, the low-beam focal line widening lens unit Flat2 may be a transparent optical element made of PMMA (polymethyl methacrylate) or PC (polycarbonate).

[0161] It can be understood that, since the low beam focal line widening lens unit Flat2 and the high beam lens unit HB2 are an integrally formed structure, the low beam focal line widening lens unit Flat2 and the high beam lens unit HB2 share the first curved surface 100 and the first total reflection surface 200. Therefore, when the first edge 101 of the first curved surface 100 is connected to the first total reflection surface 200 through the first connecting surface S1, and the second edge 102 of the first curved surface 100 is connected to the second total reflection surface 320 through the second connecting surface S2, the second edge 101 of the first curved surface 100 is connected to the second total reflection surface 320 through the second connecting surface S2. 02 is also connected to the fourth total reflection surface 312 through the second connecting surface S2, which is also conducive to forming a low beam widening light type that is wide in the horizontal direction and narrow in the vertical direction, and the lens appearance design is more free; when the first edge 101 of the first curved surface 100 is directly connected to the first total reflection surface 200, and the second edge 102 of the first curved surface 100 is directly connected to the second total reflection surface 320, the second edge 102 of the first curved surface 100 is also directly connected to the fourth total reflection surface 312, which can shorten the transmission path of the light beam in the lens and further improve the light efficiency.

[0162] like Figure 10-Figure 15 as well as Fig. 20 As shown, the low beam widening total internal reflection lens unit Flat1 includes a third light incident surface 413 and a third reflection bowl surface 414. The third light incident surface 413 is the surface of the low beam widening total internal reflection lens unit Flat1 away from the low beam widening focal line lens unit Flat2. The third reflection bowl surface 414 is deflected toward the low beam widening focal line lens unit Flat2 relative to the third light incident surface 413. The first focal line FF is located on the edge 602 of the third reflection bowl surface 414 close to the third light incident surface 413.

[0163] refer to Figure 10-Figure 15 as well as Fig. 20 As shown, the light emitted by the external light source 500 is incident on the third light incident surface 413, converged to the third reflection bowl surface 414 through the third light incident surface 413, reflected by the third reflection bowl surface 414, and then reflected by the fourth total reflection surface 312 and the first total reflection surface 200 in sequence, and finally emitted from the first curved surface 100. The shape of the third reflection bowl surface 414 is projected as a low beam widened light type, and the edge of the third reflection bowl surface 414 close to the third light incident surface 413 is projected as the cutoff line of the low beam widened light type.

[0164] Among them, the third light incident surface 413 mainly plays the role of collecting and focusing light; the third reflection bowl surface 414 is a total reflection free-form surface, which mainly plays the role of collecting and focusing light and forming a low-beam widening light pattern.

[0165] As is known from the above, the low beam widening focal line lens unit Flat2 is mainly used to achieve longitudinal focusing, and the low beam widening total internal reflection lens unit Flat1 is mainly used to achieve transverse focusing, thereby achieving the separation of transverse and longitudinal focusing, and the longitudinal focusing is greater than the transverse focal length, which is convenient for realizing a low beam widening light type that is wide in the transverse direction and narrow in the longitudinal direction.

[0166] Optional, such as Figure 10-Figure 15 as well as Fig.16 As shown, the low-beam widening total internal reflection lens unit Flat1 and the low-beam widening focal line lens unit Flat2 are an integrated structure, which can further shorten the size chain, further reduce Fresnel loss, and improve optical efficiency.

[0167] Furthermore, as is known from the foregoing, the high beam lens unit HB2 and the high beam total internal reflection lens unit HB1 can also be an integrally formed structure. Figure 10-Figure 15 As shown, the high beam lens module unit HB composed of the high beam lens unit HB2 and the high beam total internal reflection lens unit HB1, and the low beam widening lens module unit Flat composed of the low beam widening total internal reflection lens unit Flat1 and the low beam widening focal line lens unit Flat2 can be an integrated lens structure, which is beneficial to reducing the volume of the high and low beam lens modules.

[0168] It is understandable that if Figure 10-Figure 15 As shown, the first light incident surface 421 and the third light incident surface 413 are arranged side by side along the third direction Y, and the first reflective bowl surface 422 and the third reflective bowl surface 414 are arranged side by side along the third direction Y.

[0169] Furthermore, the high beam lens module unit HB composed of the high beam lens unit HB2 and the high beam total internal reflection lens unit HB1, the low beam elbow-shaped total internal reflection lens unit Kink1 and the low beam elbow-shaped focusing lens unit Kink2, and the low beam widening lens module unit Flat composed of the low beam widening total internal reflection lens unit Flat1 and the low beam widening focal line lens unit Flat2 can be integrated into an integrated lens structure, which is beneficial to reducing the volume of the high and low beam lens modules. Figure 10-Figure 15 As shown, the first light incident surface 421, the second light incident surface 411 and the third light incident surface 413 are arranged in parallel along the third direction Y, and the first reflective bowl surface 422, the second reflective bowl surface 412 and the third reflective bowl surface 414 are arranged in parallel along the third direction Y. The second light incident surface 411 and the third light incident surface 413 may be the same light incident surface.

[0170] Alternatively, the low-beam widening total internal reflection lens unit Flat1 and the low-beam widening focal line lens unit Flat2 may also be separate structures, depending on the specific situation.

[0171] Optional, such as Figure 10-Figure 15As shown, in the low beam widening lens module unit Flat, there are two low beam widening total internal reflection lens units Flat1, the two low beam widening total internal reflection lens units Flat1 are adjacent to and arranged side by side along the third direction Y, and the two low beam widening total internal reflection lens units Flat1 are symmetrically arranged along the second direction X, the two low beam widening total internal reflection lens units Flat1 correspond to the same low beam widening focal line lens unit Flat2, that is, the two low beam widening total internal reflection lens units Flat1 correspond to the same fourth total reflection surface 312, the first total reflection surface 200 and the first curved surface 100.

[0172] With such arrangement, the light emitted by the two low-beam widening total internal reflection lens units Flat1 is cross-distributed along the third direction Y, that is, along the third direction Y, the light emitted by the left low-beam widening total internal reflection lens unit Flat1 is distributed in the right half, and the light emitted by the right low-beam widening total internal reflection lens unit Flat1 is distributed in the left half, which is beneficial to expanding the emitted light pattern along the third direction Y (i.e., horizontally).

[0173] It should be noted that the two low-beam widening total internal reflection lens units Flat1 can be an integrally formed structure, and the two low-beam widening total internal reflection lens units Flat1 can also be an integrally formed structure with the low-beam widening focal line lens unit Flat2.

[0174] Alternatively, in the low-beam widening lens module unit Flat, the low-beam widening total internal reflection lens unit Flat1 may also be one, and by adjusting the shape of the third reflection bowl surface 414, the emitted low-beam widening light pattern may also be achieved.

[0175] It should be noted that in the high and low beam lens module provided in the embodiment of the present application, Figure 10-Figure 15 As shown, it may include one or more high beam lens module units HB, and may also include one or more low beam lens module units LB, wherein the low beam lens module unit LB may include one or more low beam elbow lens module units Kink, and may also include one or more low beam widening lens module units Flat, depending on the specific situation. Figure 10-Figure 15 As shown, the high and low beam lens module includes two high beam lens module units HB and one low beam lens module unit LB, wherein the low beam lens module unit LB includes three low beam elbow lens module units Kink and one low beam widening lens module unit Flat.

[0176] Accordingly, the present application also provides a lighting module, referring to Figure 10-Figure 15As shown, the lighting module includes a light source module and a high and low beam lens module, the light source module includes multiple light sources 500, the high and low beam lens module is the high and low beam lens module provided by any of the above-mentioned embodiments, the light source 500 is arranged on the light incident surface of the high and low beam lens module, such as the first light incident surface 421, the second light incident surface 411 and the third light incident surface 413, so that the light emitted by the light source 500 passes through the high and low beam lens module and emits a low beam light type and / or a high beam light type.

[0177] Since the high and low beam lens modules have been described in detail in the aforementioned embodiments, they will not be described again here.

[0178] The various parts in this manual are described in a combination of parallel and progressive ways. Each part focuses on the differences from other parts, and the same or similar parts between the various parts can be referenced to each other.

[0179] With respect to the above description of the disclosed embodiments, the features described in the embodiments in this specification may be replaced or combined with each other, so that professionals in the field can implement or use the present application. Various modifications to these embodiments will be apparent to professionals in the field, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high beam lens, characterized in that: The high beam lens is an integrated structure, comprising a first curved surface, a first total reflection surface, and a second total reflection surface, wherein the first total reflection surface and the second total reflection surface are arranged opposite to each other along a first direction, the first curved surface is located on one side of the first total reflection surface along the second direction, and the first direction is perpendicular to the second direction; The first parallel light is incident on the first curved surface, converged by the first curved surface, and then reflected by the first total reflection surface and the second total reflection surface in sequence, converged along the first direction, and converged along a third direction to become the second parallel light, and the second parallel light is emitted toward the second total reflection surface along the second direction away from the first curved surface, and the third direction is perpendicular to the first direction and perpendicular to the second direction; A ratio of a width of the first parallel light along the first direction to a width of the second parallel light along the first direction is greater than a ratio of a width of the first parallel light along the third direction to a width of the second parallel light along the third direction.

2. The high beam lens according to claim 1, characterized in that: The first curved surface has a first side and a second side arranged opposite to each other along the first direction; The first edge of the first curved surface is connected to the first total reflection surface through a first connecting surface, and the first connecting surface extends along the second direction; The second edge of the first curved surface is connected to the second total reflection surface through a second connecting surface, and the second connecting surface extends along the second direction.

3. The high beam lens according to claim 2, characterized in that: The high beam lens is in a Z-shaped structure or an inverted Z-shaped structure.

4. The high beam lens according to any one of claims 1 to 3, characterized in that: The first curved surface is a complete free-curved surface, and the first total reflection surface is a complete free-curved surface or a plane.

5. A high beam lens module, characterized in that: The high beam lens module comprises a high beam total internal reflection lens unit and a high beam lens unit; The high-beam total internal reflection lens unit comprises a first light incident surface and a first reflection bowl surface, wherein the first light incident surface is a surface of the high-beam total internal reflection lens unit facing away from the high-beam lens unit, and the first reflection bowl surface is deflected toward the high-beam lens unit relative to the first light incident surface; The high beam lens unit is the high beam lens according to any one of claims 1 to 4; The light emitted by the external light source is incident from the first light incident surface, converged to the first reflection bowl surface through the first light incident surface, and turned into intermediate parallel light after being reflected by the first reflection bowl surface. The intermediate parallel light is then reflected by the second total reflection surface and the first total reflection surface in sequence, and finally emitted from the first curved surface to form a high beam light pattern.

6. The high beam lens module according to claim 5, characterized in that: The first light incident surface is in a saddle shape.

7. The high beam lens module according to claim 5 or 6, characterized in that: The high-beam total internal reflection lens unit and the high-beam lens unit are an integrally formed structure.

8. The high beam lens module according to claim 7, characterized in that: There are at least two high-beam total internal reflection lens units, and each of the high-beam total internal reflection lens units is arranged in parallel along the third direction; Each of the high-beam total internal reflection lens units corresponds to the same high-beam lens unit.

9. A high and low beam lens module, characterized in that: The high and low beam lens module comprises a high beam lens module unit and a low beam lens module unit; The low beam lens module unit is used to form a low beam light pattern, and the low beam lens module unit includes a low beam elbow lens module unit and a low beam widening lens module unit, the low beam elbow lens module unit is used to form a low beam elbow cut-off line light pattern, the low beam widening lens module unit is used to form a low beam widening light pattern, and the low beam elbow cut-off line light pattern and the low beam widening light pattern are combined to form a low beam light pattern; The high-beam lens module unit is used to form a high-beam light pattern, and the high-beam lens module unit is the high-beam lens module according to any one of claims 5-8.

10. The high and low beam lens module according to claim 9, characterized in that: The low beam elbow-shaped lens module unit comprises a low beam elbow-shaped total internal reflection lens unit and a low beam elbow-shaped focusing lens unit; The low beam elbow-shaped focusing lens unit and the high beam lens unit are an integrally formed structure, the low beam elbow-shaped focusing lens unit and the high beam lens unit share the first curved surface and the first total reflection surface, the low beam elbow-shaped focusing lens unit further comprises a third total reflection surface, the third total reflection surface and the first total reflection surface are arranged opposite to each other along the first direction, and the third total reflection surface and the second total reflection surface are arranged side by side along the third direction; A beam of parallel light is incident on the first curved surface, converged by the first curved surface, and then reflected by the first total reflection surface and the third total reflection surface in sequence, and focused on a first focus; the distance between the geometric center of the first curved surface and the first focus along the second direction is greater than the distance between the geometric center of the second total reflection surface and the first focus along the second direction; The low-beam elbow-shaped total internal reflection lens unit comprises a second light incident surface and a second reflection bowl surface, the second light incident surface is a surface of the low-beam elbow-shaped total internal reflection lens unit facing away from the low-beam elbow-shaped focusing lens unit, the second reflection bowl surface is deflected toward the low-beam elbow-shaped focusing lens unit relative to the second light incident surface, and the first focus is located on an edge of the second reflection bowl surface close to the second light incident surface; The light emitted by the external light source is incident from the second light incident surface, converged to the second reflection bowl surface through the second light incident surface, reflected by the second reflection bowl surface, and then reflected by the third total reflection surface and the first total reflection surface in sequence, and finally emitted from the first curved surface. The shape of the second reflection bowl surface is projected as a low-beam elbow cutoff line light type, and the edge of the second reflection bowl surface close to the second light incident surface is projected as the cutoff line of the low-beam elbow cutoff line light type.

11. The high and low beam lens module according to claim 10, characterized in that: The low beam elbow-shaped total internal reflection lens unit and the low beam elbow-shaped focusing lens unit are an integrally formed structure; The first light incident surface and the second light incident surface are arranged side by side along the third direction, and the first reflective bowl surface and the second reflective bowl surface are arranged side by side along the third direction.

12. The high and low beam lens module according to any one of claims 9 to 11, characterized in that: The low beam widening lens module unit comprises a low beam widening total internal reflection lens unit and a low beam widening focal line lens unit; The low beam widening focal line lens unit and the high beam lens unit are an integrally formed structure, the low beam widening focal line lens unit and the high beam lens unit share the first curved surface and the first total reflection surface, the low beam widening focal line lens unit further includes a fourth total reflection surface, the fourth total reflection surface and the first total reflection surface are arranged opposite to each other along the first direction, and the fourth total reflection surface and the second total reflection surface are arranged side by side along the third direction; A beam of parallel light is incident on the first curved surface, converged by the first curved surface, and then reflected by the first total reflection surface and the fourth total reflection surface in sequence, converged along the first direction, and parallel to the third direction, and converged on the first focal line; The low beam widening total internal reflection lens unit comprises a third light incident surface and a third reflection bowl surface, the third light incident surface is a surface of the low beam widening total internal reflection lens unit away from the low beam widening focal line lens unit, the third reflection bowl surface is deflected toward the low beam widening focal line lens unit relative to the third light incident surface, and the first focal line is located on an edge of the third reflection bowl surface close to the third light incident surface; The light emitted by the external light source is incident on the third light incident surface, converged to the third reflection bowl surface through the third light incident surface, reflected by the third reflection bowl surface, and then reflected by the fourth total reflection surface and the first total reflection surface in sequence, and finally emitted from the first curved surface. The shape of the third reflection bowl surface is projected as a low beam widened light type, and the edge of the third reflection bowl surface close to the third light incident surface is projected as the cutoff line of the low beam widened light type.

13. The high and low beam lens module according to claim 12, characterized in that: The low beam widening total internal reflection lens unit and the low beam widening focal line lens unit are an integrated structure; The first light incident surface and the third light incident surface are arranged side by side along the third direction, and the first reflective bowl surface and the third reflective bowl surface are arranged side by side along the third direction.

14. The high and low beam lens module according to claim 12, characterized in that: There are two low-beam widening total internal reflection lens units, the two low-beam widening total internal reflection lens units are adjacently arranged in parallel along the third direction, and the two low-beam widening total internal reflection lens units are symmetrically arranged along the second direction; The two low-beam widening total internal reflection lens units correspond to the same low-beam widening focal line lens unit.

15. A lighting module, characterized in that: It comprises a light source module and a high and low beam lens module, wherein the light source module comprises a plurality of light sources, and the high and low beam lens module is the high and low beam lens module as claimed in any one of claims 9 to 14.

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