Light guide element and vehicle lamp
By designing the first light guide part and the second light guide part in the light guide element of the vehicle lamp, the light emitted by the light from the light source passes through the light concentrating part and the light emitted through the light exit surface and the reflecting surface, the problem of difficulty in realizing the multi-stage light effect in the existing vehicle lamp technology is solved, and the efficient and low-cost multi-luminous area lighting effect is achieved.
Patent Information
- Application Number
- CN202421937834.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In the existing car light technology, in order to achieve multi-stage luminous effect, multiple light guides or multiple light sources are usually required, resulting in complex structure, high design difficulty, increased production cost, and difficult arrangement of optical components.
A light guide element is designed, by providing a first light guide portion and a second light guide portion on the thick-walled body, so that after the light ray of the light source enters through the light concentrating portion, part of the light ray is emitted through the light ray, and part of the light ray is reflected through the reflection surface II, and then emitted through the light ray is emitted through the light ray, so as to achieve the lighting effect of multiple light emitting areas.
The lighting effect of multiple luminous regions is achieved with fewer light sources, which improves the light energy utilization rate, reduces costs, and simplifies the arrangement of optical components.
Smart Images
Figure CN222836707U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamps, and in particular to a light guide element and a vehicle lamp. Background Art
[0002] As the main optical element on the vehicle, in order to achieve a multi-segment lighting effect, the prior art often uses multiple light guides or multiple light sources to correspond to different light-emitting areas. This method has a complex structure, which not only increases the design difficulty, but also increases the production cost. At the same time, the increase in the number of light guides makes it difficult to arrange the optical elements. Utility Model Content
[0003] On one hand, the technical problem to be solved by the utility model is to provide a light guide element, which can achieve the lighting effect of multiple light-emitting areas with fewer light sources, has high light energy utilization rate and low cost.
[0004] Another technical problem to be solved by the utility model is to provide a vehicle lamp which is energy-efficient, highly efficient and low in cost.
[0005] In order to solve the above technical problems, the utility model provides a light-guiding element, a thick-walled body, the thick-walled body including a second surface, a light-focusing portion is provided at one end of the thick-walled body, and a first light-guiding portion and a second light-guiding portion are provided at the other end of the thick-walled body away from the light-focusing portion, the first light-guiding portion includes a light-emitting surface I, the second light-guiding portion includes a reflecting surface II and a light-emitting surface II, and the reflecting surface II forms an angle with the second surface, after the light enters the thick-walled body through the light-focusing portion, at least part of the light is emitted through the light-emitting surface I, and at least part of the light is reflected by the reflecting surface II and then emitted from the light-emitting surface II.
[0006] Preferably, the thick-walled body further includes a first surface, and the first surface and the second surface are respectively extended along the length direction of the thick-walled body and are arranged opposite to each other.
[0007] More preferably, the second light guiding portion further includes a light emitting surface II, the reflecting surface II includes a first reflecting surface II and a second reflecting surface II, one end side edge of the first reflecting surface II is connected to the first light guiding portion, the other end of the first reflecting surface II extends in a direction away from the first light guiding portion and is connected to one end of the light emitting surface II, the other end of the light emitting surface II extends in a direction away from the first light guiding portion and is connected to the second reflecting surface II, the other end of the second reflecting surface II extends in a direction close to the first light guiding portion and is connected to the end of the second surface away from the focusing portion.
[0008] Further preferably, a differential pattern is arranged on the first reflecting surface II, and the differential pattern includes a first pattern surface and a second pattern surface, the first pattern surface is perpendicular or approximately perpendicular to the second surface, the second pattern surface forms an angle with the second surface, and the angle is 30° to 55°.
[0009] More preferably, the first light guiding portion further includes a light guiding surface, one end of the light guiding surface is connected to the first reflecting surface II, the other end of the light guiding surface is connected to the light emitting surface I, and the size of the light emitting surface I in the Z direction is smaller than the size of the focusing portion in the Z direction.
[0010] More preferably, the first light guiding portion further includes a first reflecting surface I and a second reflecting surface I, one end of the first reflecting surface I is connected to the first reflecting surface II, the other end of the first reflecting surface I extends in a direction away from the light focusing portion and is connected to one end of the light emitting surface I, the other end of the light emitting surface I extends in a direction away from the second light guiding portion and is connected to one end of the second reflecting surface I, the other end of the second reflecting surface I extends in a direction close to the thick-walled body and is connected to the end of the first surface away from the light focusing portion.
[0011] More preferably, a differential pattern is arranged on the first reflecting surface I, and the differential pattern includes a first pattern surface and a second pattern surface, the first pattern surface is perpendicular or approximately perpendicular to the second surface, the second pattern surface forms an angle with the second surface, and the angle is 30° to 55°.
[0012] Further preferably, the light guiding element also includes a light evenly distributed member, which is arranged opposite to the triangular area formed by the first reflecting surface I and the first reflecting surface II, and the size of the light evenly distributed member in the Z direction is larger than the size of the triangular area in the Z direction, so that part of the light emitted through the first reflecting surface I and the first reflecting surface II enters the light evenly distributed member and is emitted from the light emitting surface of the light evenly distributed member.
[0013] Preferably, the light-guiding element also includes a third light-guiding portion, which includes a first reflection surface III, a second reflection surface III and a light-emitting surface III, wherein two opposite and non-parallel ends of the first reflection surface III are respectively connected to the first reflection surface I and the first reflection surface II, two opposite and non-parallel ends of the second reflection surface III are respectively connected to the second reflection surface I and the second reflection surface II, and two opposite and non-parallel ends of the light-emitting surface III are respectively connected to the light-emitting surface I and the light-emitting surface II.
[0014] More preferably, the light-guiding element further comprises a fourth light-guiding portion, the fourth light-guiding portion comprising a first reflection surface IV, a second reflection surface IV and a light-emitting surface IV, the two opposite and non-parallel ends of the first reflection surface IV are respectively connected to the first reflection surface I and the first reflection surface II, the two opposite and non-parallel ends of the second reflection surface IV are respectively connected to the second reflection surface I and the second reflection surface II, and the two opposite and non-parallel ends of the light-emitting surface IV are respectively connected to the light-emitting surface I and the light-emitting surface II.
[0015] More preferably, the first reflecting surface III and the first reflecting surface IV are provided with differential patterns, the differential patterns include a first pattern surface and a second pattern surface, the first pattern surface is perpendicular to the second surface, the second pattern surface forms an angle with the second surface, and the angle is 30° to 55°.
[0016] Another aspect of the utility model provides a vehicle lamp provided with the above-mentioned light guide element.
[0017] Through the above technical solution, the light guide element of the utility model is provided with a first light guide part and a second light guide part, and the light of the light source can be collimated by the focusing part and then emitted through the light emitting surface I of the first light guide part and the reflection surface II of the second light guide part, thereby realizing the lighting effect of multiple light-emitting areas with fewer light sources. The reflection surface II of the second light guide part of the utility model forms an angle with the second surface of the thick-walled body, part of the light can be emitted directly from the light emitting surface I of the first light guide part, and part of the light can be emitted or reflected through the reflection surface II of the second light guide part, thereby realizing a rich and multi-level lighting effect.
[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:
[0020] Figure 1 It is a schematic diagram of the light path of the first specific implementation mode of the utility model;
[0021] Figure 2 It is one of the structural schematic diagrams of the first specific implementation mode of the utility model;
[0022] Figure 3 This is the second structural schematic diagram of the first specific implementation mode of the utility model;
[0023] Figure 4 yes Figure 3 A magnified schematic diagram of the structure of the middle A section;
[0024] Figure 5 It is a schematic diagram of the light path of the second specific implementation mode of the utility model;
[0025] Figure 6 It is a structural schematic diagram of a second specific implementation mode of the utility model;
[0026] Figure 7 yes Figure 6 A magnified schematic diagram of the structure of the middle B section;
[0027] Figure 8 yes Figure 7 Schematic diagram of the light path of the mid-section structure;
[0028] Fig. 9 It is one of the light path schematic diagrams of the third specific implementation mode of the utility model;
[0029] Fig.10 This is the second schematic diagram of the light path of the third specific implementation mode of the utility model;
[0030] Fig.11 It is one of the structural schematic diagrams of the third specific implementation mode of the utility model;
[0031] Fig.12 yes Fig.11 An enlarged schematic diagram of the structure of the middle C section;
[0032] Fig.13 yes Fig.12 Schematic diagram of the light path of the mid-section structure;
[0033] Fig.14 This is the second structural schematic diagram of the third specific implementation mode of the utility model.
[0034] Description of Reference Numerals
[0035] 1 light source 2 focusing part
[0036] 3 thick wall body 31 first surface
[0037] 32 second surface 4 first light guide portion
[0038] 41 light emitting surface Ⅰ 42 light guiding surface
[0039] 43 first reflecting surface Ⅰ 44 second reflecting surface Ⅰ
[0040] 5 second light guide portion 51 first reflection surface II
[0041] 52 light emitting surface Ⅱ 53 second reflecting surface Ⅱ
[0042] 531 light guide tooth pattern 6 light equalizing parts
[0043] 61 light emitting element 7 differential pattern on the light emitting surface
[0044] 71 first pattern surface 72 second pattern surface
[0045] 8 third light guide unit 81 first reflection surface III
[0046] 82 second reflection surface III 83 light emitting surface III
[0047] 9 fourth light guide unit 91 first reflection surface IV
[0048] 92 second reflection surface IV 93 light emitting surface IV DETAILED DESCRIPTION
[0049] The following is a further detailed description of the implementation of the utility model in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the utility model, but cannot be used to limit the scope of the utility model. The utility model can be implemented in many different forms and is not limited to the specific embodiments of the utility model in the text, but includes all technical solutions that fall within the scope of the claims.
[0050] In the description of the present application, it is necessary to explain that some directional words are involved in the following description to clearly explain the technical solution of the present application, for example, the optical axis of the light source is roughly the main irradiation direction of the light of the focusing part, which is represented by Y, and the axis Z is a vertical axis defined to be orthogonal to the optical axis Y, and the axis X extends transversely to the axis Y, and the axis X is orthogonal to the axes Y and Z. The axes X and Y form a horizontal plane, and the axes Y and Z form a vertical plane. "Vertical section plane" means the plane unfolded by the axes Y and Z, and "horizontal section plane" means the plane unfolded by the axes X and Y. In the above coordinate system, "up, down, left, right" can all be observed from the above coordinate system. It should be noted that in the description of the present utility model, unless otherwise specified, the indicated orientation or positional relationship is only for the convenience of describing the present utility model and simplifying the description, and does 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 utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0051] In addition, the words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. Words such as "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of covering other elements. "Parallel" and "perpendicular" are only terms used to facilitate the understanding of those skilled in the art, and are used to simplify the relationship. They do not refer to the absolute, unbiased state in geometry, but are based on a relative or approximate understanding. Due to the influence of various factors such as the actual observation angle, manufacturing accuracy, and measurement accuracy, the "parallel" and "perpendicular" used in the present invention may not accurately meet the strict definition in geometry. They mainly reflect a trend or general feature of the directional relationship. For example, the term "approximately parallel" or "approximately perpendicular" mentioned in the text can be understood as having a certain deviation relative to parallel or perpendicular.
[0052] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.
[0053] All terms used in the present invention have the same meanings as those understood by ordinary technicians in the field to which the present invention belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.
[0054] like Figures 1 to 14As shown, the utility model provides a light-guiding element, including a thick-walled body 3, the thick-walled body 3 including a first surface 31 and a second surface 32 respectively extending along the length direction of the thick-walled body 3 and arranged opposite to each other, a light-focusing portion 2 is provided at one end of the thick-walled body 3, and the light-focusing portion 2 is correspondingly provided with a light source 1, so that the light emitted by the light source 1 can be emitted into the thick-walled body 3 along the length direction of the thick-walled body 3 through the light-focusing portion 2. From the orientation shown in the accompanying drawing, the length direction of the thick-walled body 3 is the Y direction. The setting position of the light focusing part 2 can be set at the left end or right end of the length direction of the thick-walled body 3 as shown in the figure. In addition, the light focusing part 2 can also be set vertically or approximately vertically to the length direction of the thick-walled body 3. Specifically, the light focusing part 2 can be set at the upper end surface or lower end surface close to the left end or right end of the thick-walled body 3. At this time, the light emitted by the light source 1 corresponding to the light focusing part 2 is incident vertically or approximately vertically to the length direction of the thick-walled body 3, and the light focusing part 2 is provided with a reflecting surface so that the incident light is reflected by the reflecting surface and incident into the thick-walled body 3 along the length direction of the thick-walled body 3. The specific structure of the above-mentioned light focusing part 2 can be the structure of the concentrator in the prior art, and no more details are given here. The thick-walled body 3 is provided with a first light guide portion 4 and a second light guide portion 5 at one end away from the light focusing portion 2. The light emitted by the light source 1 passes through the light guide element of this embodiment, and the lighting effect of the two light-emitting areas of the first light guide portion 4 and the second light guide portion 5 can be achieved. In addition, multiple light guide portions can be set on the thick-walled body 3 to achieve a single or a small number of light sources 1 to meet the lighting effect of multiple light-emitting areas. There is no need to set multiple light sources 1, which reduces production costs, and can effectively reduce heat accumulation inside the light guide element, thereby increasing the service life of the light guide element. The first light guide portion 4 has a light emitting surface Ⅰ41, and the light emitting surface Ⅰ41 can be set obliquely to the second surface 32. The second light guide portion 5 has a reflective surface II and a light emitting surface II52, and the reflective surface II forms an angle with the second surface 32, so that after the light emitted by the light source 1 enters the thick-walled body 3 through the focusing portion 2, part of the light can be emitted from the light emitting surface I, and part of the light is reflected by the reflective surface II and then emitted from the light emitting surface II52, thereby increasing the sense of hierarchy of the emitted light, and by adjusting the angle between the reflective surface II and the second surface 32, different lighting effects and visual effects can be achieved. In the above embodiment, the light emitting surface I41, the light emitting surface II52 and the reflective surface II can be a planar structure, a concave structure or a convex structure. The user can design and combine the structures of the light emitting surface I41 and the reflective surface II according to actual use requirements to obtain different lighting effects, and no excessive restrictions are made here.
[0055] Furthermore, optical patterns may be provided on the light emitting surface I41, the light emitting surface II52 and the reflective surface II to increase the uniformity of the emitted light, thereby providing a comfortable visual effect. The above optical patterns include but are not limited to fisheye patterns, stripe patterns and polygonal patterns, and different optical patterns may be selected according to the actual optical visual effect required.
[0056] In some embodiments, reference Figures 1 to 8 In the azimuth coordinate system, the thick-walled body 3 includes a first surface 31 and a second surface 32, and the first surface 31 and the second surface 32 are both parallel to the XY plane. For example, the focusing portion 2 can be a concentrator, so that the light emitted by the light source 1 is collimated into parallel light or approximately parallel light after passing through the focusing portion 2 and is incident on the thick-walled body 3, and the direction of the collimated light is parallel or approximately parallel to the Y direction. The second light guide 5 is arranged close to the second surface 32, and the reflection surface II includes a first reflection surface II51 and a second reflection surface II53. One end of the first reflection surface II51 is connected to the first light guide 4, and the other end of the first reflection surface II51 extends in a direction away from the first light guide 4 and the light focusing part 2, that is, in the opposite direction of Z and in the opposite direction of Y, and is connected to one end of the light exit surface II52. The horizontal plane where the connection end of the first reflection surface II51 and the light exit surface II52 is located can overlap with the second surface 32, or the horizontal plane where the other end of the first reflection surface II51 is located is located below the second surface 32, so that part of the light emitted from the thick-walled body 3 can be reflected by the first reflection surface II51 and transmitted along the second light guide 5. The other end of the light exit surface II52 extends in a direction away from the first light guide 4 and is connected to one end of the second reflection surface II53. Preferably, the other end of the light emitting surface II52 extends in the opposite direction of Z, so that the light emitting surface II52 is inclined with the second surface 32, and the other end of the second reflecting surface II53 is connected with the second surface 32, so that the second light guide 5 is approximately formed into a triangle on the YZ plane. Based on the structure of the second light guide 5, part of the light emitted from the thick-walled body 3 is reflected by the first reflecting surface II51 and the second reflecting surface II53 in sequence, and then emitted from the light emitting surface II52.
[0057] Furthermore, a differential pattern 7 may be provided on the first reflective surface II51, and the differential pattern 7 includes a first pattern surface 71 and a second pattern surface 72. The first pattern surface 71 is perpendicular or approximately perpendicular to the second surface 32, so that part of the light transmitted along the length direction of the thick-walled body 3 can be refracted through the first pattern surface 71. The second pattern surface 72 forms an angle with the second surface 32, and the angle is 30° to 55°, so that part of the light transmitted along the length direction of the thick-walled body 3 can be reflected at the second pattern surface 72. Therefore, of the light incident on the first reflective surface II51, part of the light is directly emitted through the first pattern surface 71, and another part of the light is reflected through the second pattern surface 72 to the second reflective surface II53. The second reflective surface II53 may be provided with the following: Figure 4 The light guide tooth pattern 531 is used to enhance the light diffusion effect of the second reflective surface II 53. In addition, according to actual use requirements, light patterns such as leather patterns and spherical patterns can be set on the second reflective surface II 53 to meet the needs of different lighting effects.
[0058] In some embodiments, reference Figures 1 to 4The thick-walled body 3 includes a first surface 31 and a second surface 32. A first light guiding part 4 and a second light guiding part 5 are provided at one end of the thick-walled body 3. The first light guiding part 4 includes a light emitting surface Ⅰ41 and a light guiding surface 42. The second light guiding part 5 includes a first reflecting surface Ⅱ51, a light emitting surface Ⅱ52 and a second reflecting surface Ⅱ53. Specifically, one end of the first surface 31 extends in the opposite direction of Y and is connected to one end of the light emitting surface I41, the other end of the light emitting surface I41 extends in the opposite direction of Z and is connected to one end of the light guiding surface 42, and the other end of the light guiding surface 42 extends in the positive direction of Y and is connected to one end of the first reflecting surface II51, the other end of the first reflecting surface II51 extends in the opposite direction of Z and in the opposite direction of Y and is connected to one end of the light emitting surface II52, so that the first reflecting surface II51 and the light guiding surface 42 form an angle, the other end of the light emitting surface II52 extends in the opposite direction of Z and is connected to one end of the second reflecting surface II53, and the other end of the second reflecting surface II53 extends in the positive direction of Z and in the positive direction of Y and is connected to the second surface 32. In the Z direction, the size of the first light guide part 4 is smaller than that of the thick-walled body 3. When the light emitted by the light source 1 enters the thick-walled body 3 after passing through the focusing part 2, a part of the light directly enters the first light guide part 4 and is emitted from the light emitting surface Ⅰ41, and another part of the light is reflected by the first reflection surface Ⅱ51 and the second reflection surface Ⅱ53 in sequence, and then is emitted from the light emitting surface Ⅱ52, so that the effect of lighting up multiple light-emitting areas with a small number of light sources 1 is achieved. In the Y direction, the size of the second surface 32 is smaller than that of the first surface 31, so that there is a position difference between the light emitting surface Ⅰ41 and the light emitting surface Ⅱ52 in the Y direction, so that the light emitted from the light emitting surface Ⅰ41 and the light emitted from the light emitting surface Ⅱ52 have different visual effects, for example, the upper light shape presented by the first light guide part 4 has a brighter light effect, and the lower light shape presented by the second light guide part 5 has a softer light effect.
[0059] In some embodiments, reference Figures 5 to 8The thick-walled body 3 includes a first surface 31 and a second surface 32. A first light guiding part 4 and a second light guiding part 5 are provided at one end of the thick-walled body 3. The first light guiding part 4 includes a light emitting surface Ⅰ41, a first reflecting surface Ⅰ43 and a second reflecting surface Ⅰ44. The second light guiding part 5 includes a first reflecting surface Ⅱ51, a light emitting surface Ⅱ52 and a second reflecting surface Ⅱ53. Specifically, the first surface 31 extends in the reverse direction of Y and is connected to one end of the second reflecting surface I44, the other end of the second reflecting surface I44 extends in the positive direction of Z and in the reverse direction of Y, and is connected to one end of the light emitting surface I41, the other end of the light emitting surface I41 extends in the reverse direction of Z and is connected to one end of the first reflecting surface I43, the other end of the first reflecting surface I43 extends in the reverse direction of Z and in the positive direction of Y and is connected to one end of the first reflecting surface II51, the other end of the first reflecting surface II51 extends in the reverse direction of Z and in the reverse direction of Y and is connected to one end of the light emitting surface II52, the other end of the light emitting surface II52 extends in the reverse direction of Z and is connected to one end of the second reflecting surface II53, and the other end of the second reflecting surface II53 is connected to the second surface 32. From the Z direction, the connection end of the first reflection surface II51 and the first reflection surface I43 is within the Z-direction size range of the thick-walled body 3, and the light emitted by the light source 1 enters the thick-walled body 3 after passing through the focusing portion 2, and part of the light is reflected by the first reflection surface I43 and the second reflection surface I44 in sequence, and then emitted from the light-emitting surface I41, and part of the light is reflected by the first reflection surface II51 and the second reflection surface II53 in sequence, and then emitted from the light-emitting surface II52. Compared with the previous embodiment, the first light guide portion 4 in this embodiment has a structure similar to that of the second light guide portion 5, further expanding the light-emitting area of the light guide element.
[0060] As a preferred embodiment, the first light guide portion 4 and the second light guide portion 5 have the same structure, and the first light guide portion 4 and the second light guide portion 5 are symmetrically arranged relative to the optical axis Y, then the light distribution formed by the light source 1 through the first light guide portion 4 is basically the same as the light distribution formed by the light source 1 through the second light guide portion 5, or the illumination area is basically the same.
[0061] Based on the above embodiments, in some embodiments, a differential pattern 7 may be provided on the first reflecting surface I43 and the first reflecting surface II51, referring to Figures 7 and 8The differential pattern 7 includes a first pattern surface 71 and a second pattern surface 72. The first pattern surface 71 is perpendicular or approximately perpendicular to the second surface 32. The second pattern surface 72 forms an angle with the second surface 32, and the angle is 30° to 55°. Then, part of the light incident on the first reflection surface Ⅰ43 and the first reflection surface Ⅱ51 is directly emitted through the first pattern surface 71, and part of the light is reflected by the second pattern surface 72 to the first reflection surface Ⅰ43 and the second reflection surface Ⅱ53. The ends of the first reflection surface Ⅰ43 and the first reflection surface Ⅱ51 are connected to form a triangular area. A light homogenizer 6 can be arranged at the relative position of the triangular area, and the size of the light homogenizer 6 in the Z direction is larger than the size of the triangular area in the Z direction, so that the light emitted from the first pattern surface 71 can enter the light homogenizer 6 and be emitted from the light homogenizer light-emitting surface 61 of the light homogenizer 6. The arrangement of the light-homogenizing member 6 can even out the light emitted from the first patterned surface 71, improve visual comfort, and reduce dark areas and blind areas in lighting. The distance of the light-homogenizing member 6 relative to the first reflective surface I43 and the first reflective surface II51 can be designed and selected according to actual use requirements, and no further restrictions are made here.
[0062] In some embodiments, reference Figures 9 to 14 The light-guiding element of the utility model may further include a third light-guiding portion 8, which includes a first reflection surface III81, a second reflection surface III82 and a light-emitting surface III83. The second reflection surface I44, the second reflection surface II53 and the second reflection surface III82 are formed into a trapezoid, and the opposite and non-parallel ends of the second reflection surface III82 are respectively connected to one of the opposite and non-parallel ends on the second reflection surface I44 and the second reflection surface II53. One of the two opposite and parallel ends of the second reflecting surface III82 is connected to the thick-walled body 3, and the other end extends in the opposite direction of Y and in the opposite direction of X to be connected to the light emitting surface III83. The light emitting surface I41, the light emitting surface II52 and the light emitting surface III83 are all formed into a trapezoid, and the two opposite and non-parallel ends of the light emitting surface III83 are respectively connected to one of the two opposite and non-parallel ends on the light emitting surface I41 and the light emitting surface II52. The light emitting surface I41, the light emitting surface II52 and the light emitting surface III83 that are connected to each other may be on the same vertical plane or may not be on the same vertical plane. The user may adjust the inclination angle of the light emitting surface of each light guiding part relative to the horizontal plane according to actual usage requirements. The first reflecting surface I43, the first reflecting surface II51 and the first reflecting surface III81 can all be formed into triangles, and the two opposite and non-parallel ends of the first reflecting surface III81 are respectively connected to one of the two opposite and non-parallel ends on the first reflecting surface I43 and the first reflecting surface II51, so that the first reflecting surface I43, the first reflecting surface II51 and the first reflecting surface III81 share a top end after being connected, and the top end is extended in a direction close to the thick-walled body 3, and the end of the first reflecting surface III81 opposite to the top end is connected to the light emitting surface III83.
[0063] On the basis of the above embodiments, the light-guiding element of the utility model also includes a fourth light-guiding portion 9, which includes a first reflection surface IV91, a second reflection surface IV92 and a light-emitting surface IV93. The second reflection surface IV92 is formed into a trapezoid, and the two opposite and non-parallel ends of the second reflection surface IV92 are respectively connected to one of the two opposite and non-parallel ends on the second reflection surface I44 and the second reflection surface II53, and the other end of the two opposite and non-parallel ends on the second reflection surface I44 and the second reflection surface II53 is connected to the second reflection surface III82. Preferably, the second reflection surface I44, the second reflection surface III82, the second reflection surface II53 and the second reflection surface IV92 are interconnected so as to be able to enclose a square outline. One of the two opposite and parallel ends of the second reflecting surface IV92 is connected to the thick-walled body 3, and the other end extends in the opposite direction of Y and in the positive direction of X to be connected to the light-emitting surface IV93. The light-emitting surface IV93, the light-emitting surface I41, the light-emitting surface II52 and the light-emitting surface III83 are all formed into a trapezoid. The two opposite and non-parallel ends of the light-emitting surface IV93 are respectively connected to one of the two opposite and non-parallel ends on the light-emitting surface I41 and the light-emitting surface II52. The other end of the two non-parallel ends is connected to the light emitting surface III83, and the light emitting surface I41, the light emitting surface III83, the light emitting surface II52 and the light emitting surface IV93 that are connected to each other form a "U" shape on the XZ plane, and the light emitting surface I41, the light emitting surface III83, the light emitting surface II52 and the light emitting surface IV93 can be on the same vertical plane or not. The user can adjust the inclination angle of the light emitting surface of each light guiding part relative to the horizontal plane according to actual usage requirements. The first reflection surface I43, the first reflection surface II51, the first reflection surface III81 and the first reflection surface IV91 can all be formed into a triangle, and the two opposite and non-parallel ends of the first reflection surface IV91 are respectively connected to one of the two opposite and non-parallel ends on the first reflection surface I43 and the first reflection surface II51, and the other end of the two opposite and non-parallel ends on the first reflection surface I43 and the first reflection surface II51 is connected to the first reflection surface III81, and the first reflection surface I43, the first reflection surface II51, the first reflection surface III81 and the first reflection surface IV91 connected to each other share a top end, and the top end is extended in the direction close to the thick-walled body 3 so as to form a quadrangular pyramid structure. The end of the first reflection surface IV91 opposite to the top end is connected to the light-emitting surface IV93. As another preferred embodiment, the first reflection surface I43 and the first reflection surface II51 can be formed into a trapezoid, and the first reflection surface III81 and the first reflection surface IV91 can be formed into a triangle.In addition, the first reflecting surface I43 and the first reflecting surface II51 can be formed into a triangle, and the first reflecting surface III81 and the first reflecting surface IV91 can be formed into a trapezoid. The user can change the structural shapes of the first reflecting surface I43, the first reflecting surface II51, the first reflecting surface III81 and the first reflecting surface IV91 according to actual usage requirements, and the connection methods of the above-mentioned first reflecting surfaces can be derived based on the connection relationship of the basic embodiment of the present application, which will not be elaborated here. In the light-guiding element of the above-mentioned embodiment, the light emitted by the light source 1 is collimated by the focusing portion 2 and then enters the thick-walled body 3, part of the light is incident on the first reflection surface Ⅰ43 of the first light-guiding portion 4, and is reflected by the first reflection surface Ⅰ43 and the second reflection surface Ⅰ44 in sequence and then emerges from the light-emitting surface Ⅰ41, part of the light is incident on the first reflection surface Ⅱ51 of the second light-guiding portion 5, and is reflected by the first reflection surface Ⅱ51 and the second reflection surface Ⅱ53 in sequence and then emerges from the light-emitting surface Ⅱ52, part of the light is incident on the first reflection surface Ⅲ81 of the third light-guiding portion 8, and is reflected by the first reflection surface Ⅲ81 and the second reflection surface Ⅲ82 in sequence and then emerges from the light-emitting surface Ⅲ83, part of the light is incident on the first reflection surface Ⅳ91 of the fourth light-guiding portion 9, and is reflected by the first reflection surface Ⅳ91 and the second reflection surface Ⅳ92 in sequence and then emerges from the light-emitting surface Ⅳ93.
[0064] In some embodiments, reference 12 to Fig.13 , the first reflecting surface Ⅰ43, the first reflecting surface Ⅱ51, the first reflecting surface Ⅲ81 and the first reflecting surface Ⅳ91 may be provided with a differential pattern 7, the differential pattern 7 includes a first pattern surface 71 and a second pattern surface 72, the first pattern surface 71 is perpendicular or approximately perpendicular to the second surface 32, the second pattern surface 72 forms an angle with the second surface 32, and the angle is 30° to 55°, then the light incident on the first reflecting surface Ⅰ43, the first reflecting surface Ⅱ51, the first reflecting surface Ⅲ81 and the first reflecting surface Ⅳ91, part The split light is directly emitted through the first patterned surface 71, and part of the light is reflected through the second patterned surface 72 to the first reflection surface I43 of the first light guide part 4, the first reflection surface II51 of the second light guide part 5, the first reflection surface III81 of the third light guide part 8, and the first reflection surface IV91 of the fourth light guide part 9, and then reflected again through the first reflection surface I43, the first reflection surface II51, the first reflection surface III81, and the first reflection surface IV91 and then emitted from the light-emitting surface I41, the light-emitting surface II52, the light-emitting surface III83, and the light-emitting surface IV93. Based on the above embodiment, the function of a small number of light sources 1 lighting up multiple light-emitting areas can be realized. In addition, a light-homogenizing member 6 can be arranged at relative positions on the first reflection surface I43, the first reflection surface II51, the first reflection surface III81, and the first reflection surface IV91, so that the light emitted from the first patterned surface 71 of the first reflection surface I43, the first reflection surface II51, the first reflection surface III81, and the first reflection surface IV91 is more uniform, thereby improving the clarity of the illumination light shape.
[0065] In any of the above embodiments, the light source 1 and the light focusing portion 2 are provided correspondingly, and the number of the light source 1 and the light focusing portion 2 can be expanded according to actual use requirements, for example, Figure 2 , 3 , 11 and 14 are embodiments of the light guide element having three light focusing parts 2. As the number of light focusing parts 2 in the X direction increases, the sizes of the thick-walled body 3, the first light guide part 4 and the second light guide part 5 can also be adaptively changed.
[0066] In summary, the light guide element of the utility model is provided with the first light guide part 4 and the second light guide part 5 on the thick-walled body 3, so that the light emitted by the light source 1 can be emitted from the first light guide part 4 and the second light guide part 5 respectively when entering the thick-walled body 3, realizing the function of lighting multiple light-emitting areas with a single light source 1 or a small number of light sources 1, improving the utilization rate of the light source, and being able to reduce the number of light sources 1 and light guide elements used in the prior art, reducing costs, and also reducing the difficulty of assembling the headlights. By combining the structural design of the first light guide part 4 and the second light guide part 5, different lighting effects and visual effects can be obtained. Exemplarily, part of the light can be directly emitted from the thick-walled body 3 and the light-emitting surface I41 in sequence, part of the light can be emitted from the light-emitting surface II52 after being reflected by the first reflection surface II51 and the second reflection surface II53 in sequence, and part of the light can be directly emitted from the reflection surface II51, so that the light shape of the first light guide part 4 that can be obtained is smaller and brighter, and the light shape of the second light guide part 5 is larger and softer; part of the light can be emitted from the light-emitting surface I41 after being reflected by the first reflection surface I43 and the second reflection surface I44 in sequence, part of the light can be emitted from the light-emitting surface II52 after being reflected by the first reflection surface II51 and the second reflection surface II53 in sequence, and part of the light can be directly emitted from the first reflection surface I43 and the first The light is emitted from the reflection surface II51, and the light shapes of the first light guide part 4 and the second light guide part 5 obtained thereby are both larger and softer; part of the light can be reflected by the first reflection surface II51, the second reflection surface II53, the third reflection surface II54 and the fourth reflection surface II55 to the first reflection surface I43, the second reflection surface I44, the third reflection surface I45 and the fourth reflection surface I46, and then emitted from the light exit surface I41, and part of the light can be directly emitted from the light exit surface I41, the first reflection surface II51, the second reflection surface II53, the third reflection surface II54 and the fourth reflection surface II55, and the light shape of the light guide element obtained thereby is brighter in the middle area, and the brightness gradually decreases outward, and the outer circle light effect is softer. The utility model arranges a light equalizing member 6 at the light exit end of the first light guide part 4 and the second light guide part 5, so that the light distribution is more uniform, the brightness difference between the first light guide part 4 and the second light guide part 5 is reduced, and the visual comfort is improved.
[0067] The embodiment of the utility model further provides a vehicle lamp provided with the above-mentioned light guide element. The vehicle lamp has the beneficial effects of the above-mentioned light guide element, which will not be described in detail here.
[0068] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.
Claims
1. A light guide element, characterized in that: The invention comprises a thick-walled body (3), wherein the thick-walled body (3) comprises a second surface (32), a light focusing portion (2) is provided at one end of the thick-walled body (3), and a first light guiding portion (4) and a second light guiding portion (5) are provided at the other end of the thick-walled body (3) away from the light focusing portion (2), wherein the first light guiding portion (4) comprises a light emitting surface I (41), and the second light guiding portion (5) comprises a reflecting surface II and a light emitting surface II (52), and the reflecting surface II forms an angle with the second surface (32), and after light enters the thick-walled body (3) through the light focusing portion (2), at least part of the light is emitted through the light emitting surface I (41), and at least part of the light is emitted from the light emitting surface II (52) after being reflected by the reflecting surface II.
2. The light guide element according to claim 1, characterized in that The thick-walled body (3) further comprises a first surface (31), wherein the first surface (31) and the second surface (32) respectively extend along the length direction of the thick-walled body (3) and are arranged opposite to each other.
3. The light guide element according to claim 2, characterized in that: The reflecting surface II comprises a first reflecting surface II (51) and a second reflecting surface II (53), wherein one end side edge of the first reflecting surface II (51) is connected to the first light guiding portion (4), the other end of the first reflecting surface II (51) extends in a direction away from the first light guiding portion (4) and is connected to one end of the light emitting surface II (52), the other end of the light emitting surface II (52) extends in a direction away from the first light guiding portion (4) and is connected to the second reflecting surface II (53), the other end of the second reflecting surface II (53) extends in a direction close to the first light guiding portion (4) and is connected to an end of the second surface (32) away from the focusing portion (2).
4. The light guide element according to claim 3, characterized in that: A differential pattern (7) is arranged on the first reflecting surface II (51), and the differential pattern (7) comprises a first pattern surface (71) and a second pattern surface (72), the first pattern surface (71) is perpendicular or approximately perpendicular to the second surface (32), and the second pattern surface (72) forms an angle with the second surface (32), and the angle is 30° to 55°.
5. The light guide element according to claim 3, characterized in that: The first light guiding portion (4) further comprises a light guiding surface (42), one end of the light guiding surface (42) being connected to the first reflecting surface II (51), and the other end of the light guiding surface (42) being connected to the light emitting surface I (41), and the size of the light emitting surface I (41) in the Z direction is smaller than the size of the light focusing portion (2) in the Z direction.
6. The light guide element according to claim 4, characterized in that The first light-guiding portion (4) further comprises a first reflecting surface I (43) and a second reflecting surface I (44); one end of the first reflecting surface I (43) is connected to the first reflecting surface II (51); the other end of the first reflecting surface I (43) extends in a direction away from the light-focusing portion (2) and is connected to one end of the light-emitting surface I (41); the other end of the light-emitting surface I (41) extends in a direction away from the second light-guiding portion (5) and is connected to one end of the second reflecting surface I (44); the other end of the second reflecting surface I (44) extends in a direction close to the thick-walled body (3) and is connected to an end of the first surface (31) away from the light-focusing portion (2).
7. The light guide element according to claim 6, characterized in that A differential pattern (7) is arranged on the first reflecting surface I (43), and the differential pattern (7) comprises a first pattern surface (71) and a second pattern surface (72), the first pattern surface (71) is perpendicular or approximately perpendicular to the second surface (32), and the second pattern surface (72) forms an angle with the second surface (32), and the angle is 30° to 55°.
8. The light guide element according to claim 7, characterized in that The invention also includes a light homogenizer (6), wherein the light homogenizer (6) is arranged opposite to a triangular area formed by the first reflecting surface I (43) and the first reflecting surface II (51), and the size of the light homogenizer (6) in the Z direction is larger than the size of the triangular area in the Z direction, so that part of the light emitted through the first reflecting surface I (43) and the first reflecting surface II (51) enters the light homogenizer (6) and is emitted from the light emitting surface (61) of the light homogenizer (6).
9. The light guide element according to claim 7, characterized in that: The invention also comprises a third light guiding part (8), wherein the third light guiding part (8) comprises a first reflecting surface III (81), a second reflecting surface III (82) and a light emitting surface III (83), wherein two opposite and non-parallel ends of the first reflecting surface III (81) are respectively connected to the first reflecting surface I (43) and the first reflecting surface II (51), two opposite and non-parallel ends of the second reflecting surface III (82) are respectively connected to the second reflecting surface I (44) and the second reflecting surface II (53), and two opposite and non-parallel ends of the light emitting surface III (83) are respectively connected to the light emitting surface I (41) and the light emitting surface II (52).
10. The light guide element according to claim 9, characterized in that The invention also comprises a fourth light guiding part (9), wherein the fourth light guiding part (9) comprises a first reflecting surface IV (91), a second reflecting surface IV (92) and a light emitting surface IV (93), wherein two opposite and non-parallel ends of the first reflecting surface IV (91) are respectively connected to the first reflecting surface I (43) and the first reflecting surface II (51), two opposite and non-parallel ends of the second reflecting surface IV (92) are respectively connected to the second reflecting surface I (44) and the second reflecting surface II (53), and two opposite and non-parallel ends of the light emitting surface IV (93) are respectively connected to the light emitting surface I (41) and the light emitting surface II (52).
11. The light guide element according to claim 10, characterized in that: A differential pattern (7) is provided on the first reflecting surface III (81) and the first reflecting surface IV (91), wherein the differential pattern (7) comprises a first pattern surface (71) and a second pattern surface (72), wherein the first pattern surface (71) is perpendicular or approximately perpendicular to the second surface (32), and the second pattern surface (72) forms an angle with the second surface (32), and the angle is 30° to 55°.
12. A vehicle lamp, characterized in that: A light guide element according to any one of claims 1 to 11 is provided.