Light distribution mirror, optical module and vehicle

Abstract

The utility model discloses a lens, an optical module and a vehicle. The light distribution lens comprises a first light distribution component, a second light distribution component and a light source, the second light distribution component is connected with the light incident part, the second light distribution component comprises a lap joint surface, and the part, connected with the light incident part, of the lap joint surface is provided with a lap joint edge; wherein an included angle alpha is formed between the lap joint surface and the horizontal plane, and alpha is larger than or equal to 40 degrees and smaller than or equal to 75 degrees. Light is not reflected right ahead to generate obvious light any more, so that bright spots or inverted images are weakened, and the problem that stray light is likely to be generated when the light enters the lap joint of the lens is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive lamps, and particularly relates to a light distribution lens, an optical module and a vehicle. Background Art

[0002] At present, the styling requirements of vehicle lamps are becoming more and more three-dimensional and profound. To achieve this effect, the light-emitting area mainly uses the form of thick-walled light guides. However, the more three-dimensional the effect is, the greater the thickness of the thick-walled light guide is, and the greater the size drop protruding from the trim ring is. As a result, more light from the light-emitting surface hits the light distribution lens, and when the light hits the connection between the edge of the light distribution lens and the lamp body, an extra bright spot or reflection effect will appear, reducing the delicacy of the whole lamp. Summary of the Utility Model

[0003] The present solution aims at at least some of the above-mentioned problems and requirements, and provides a light distribution lens, an optical module and a vehicle. The above technical purpose can be achieved and many other technical effects can be brought due to the following technical features.

[0004] The utility model provides a light distribution lens, comprising:

[0005] A first light distribution component, including a light incident part and a light emitting part;

[0006] A second light distribution component, connected to the light incident part. The second light distribution component includes a lapping surface, and the part where the lapping surface is connected to the light incident part has a lapping edge;

[0007] Wherein, an angle α is formed between the lapping surface and the horizontal plane, and α is greater than or equal to 40° and less than or equal to 75°.

[0008] In some embodiments, α between the lapping surface and the horizontal plane is greater than or equal to 45° and less than or equal to 75°.

[0009] In some embodiments, the surface of the light path adjusting surface has a leather grain structure.

[0010] In some embodiments, in the direction gradually approaching the lapping edge, the lapping surface includes a light path adjusting surface and a lapping edge surface arranged in sequence, and the width of the lapping edge surface is 0.5-1.0 mm.

[0011] In some embodiments, the width of the lapping edge surface is 0.5 mm.

[0012] In some embodiments, the angle β between the lapping edge surface and the tangent line of the light emitting part at the lapping edge is 90°±30°.

[0013] In some embodiments,

[0014] The included angle α between the overlapping surface and the horizontal plane ranges from 40° to 45°, and the depth range of the leather grain structure is from 6 to 8 μm; or,

[0015] The included angle α between the overlapping surface and the horizontal plane ranges from 45° to 75°, and the depth range of the leather grain structure is from 8 to 10 μm.

[0016] An optical module, comprising:

[0017] A light guide component;

[0018] A light distribution lens, which is arranged in the light emitting direction of the light guide component, and in the direction gradually away from the light guide component, the light incident part and the light emitting part of the first light distribution component are arranged in sequence.

[0019] In some embodiments, it further includes a fixing ring, which is arranged on the periphery of the light guide component; the fixing ring is provided with a through hole for the light guide component to pass through.

[0020] A vehicle, comprising the optical module described above.

[0021] This application changes the optical path of the inclined light emitted by the light guide component, so that the light no longer reflects forward to produce obvious brightness, thereby weakening the bright spot or reflection, and solving the problem that stray light is likely to be generated when the light is incident on the overlapping part of the light distribution lens.

[0022] In the following, the optimal embodiments of implementing the present invention will be described in more detail with reference to the drawings, so as to easily understand the features and advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Among them, the drawings are only used to show some embodiments of the present invention, rather than limiting all embodiments of the present invention thereto.

[0024] Figure 1 It is a schematic diagram showing the bright spot reflection effect at the connection between the edge of the existing vehicle lamp light distribution lens and the lamp body;

[0025] Figure 2 It is a schematic diagram of the optical module provided by an embodiment of this application;

[0026] Figure 3 For Figure 2 The optical path diagram of the light hitting the overlapping surface in the optical module;

[0027] Figure 4 For Figure 3 The enlarged view of part A in

[0028] Figure 5It is the light effect diagram of the edge of the light distribution lens of the optical module of this application;

[0029] Figure 6 It is the optical path schematic diagram of the optical module provided by another embodiment of this application;

[0030] In the figure,

[0031] 100, the first light distribution component; 110, the light incident part; 120, the light exit part;

[0032] 200, the second light distribution component; 210, the overlapping surface; 211, the optical path adjustment surface; 212, the overlapping edge surface;

[0033] 300, the light guide component;

[0034] 400, the lamp body;

[0035] 500, the fixing ring. Specific embodiments

[0036] In order to make the purpose, technical solutions and advantages of the technical solutions of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present utility model. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0037] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meaning understood by those of ordinary skill in the art to which the present utility model belongs. The "first", "second" and similar terms used in the specification and claims of the patent application of the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "one" do not necessarily indicate a quantity limitation. The terms such as "comprising" or "including" mean that the elements or objects appearing before the term cover the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0038] The current styling requirements for vehicle headlights are becoming more three-dimensional and profound. To achieve this effect, the light-emitting area mainly uses the form of thick-walled light guides. The greater the three-dimensional effect to be presented, the greater the thickness of the thick-walled light guide, and the more light will hit the light distribution lens on its light-emitting surface. When the light hits the connection between the edge of the light distribution lens and the lamp body, it will present an extra bright spot or reflected image effect, reducing the refinement of the entire lamp. Figure 1 As can be seen, a large amount of light will be mapped to the edge of the light distribution lens to form stray light and shadows.

[0039] Specifically, the applicant's research found that the root cause of the above problems is that when the light emitted from the light-emitting surface of the thick-walled light guide hits the lap joint of the two-color or multi-color part of the light distribution lens in the illuminated state of the lamp, the high-brightness surface at the lap joint will reflect the light forward of the light-emitting surface of the lamp, directly resulting in the generation of stray bright spots or reflected images.

[0040] Reference Figure 2 and Figure 3 , a light distribution lens, comprising:

[0041] A first light distribution component 100, comprising a light-incident part 110 and a light-emitting part 120;

[0042] A second light distribution component 200, connected to the light-incident part 110. The second light distribution component 200 comprises a lap joint surface 210, and the part where the lap joint surface 210 is connected to the light-incident part 110 has a lap joint edge line;

[0043] Wherein, an angle α is formed between the lap joint surface 210 and the horizontal plane, and α is greater than or equal to 40° and less than or equal to 75°.

[0044] The light distribution lens is a light-transmitting component installed on the light-emitting side of the lamp. The first light distribution component 100 and the second light distribution component 200 can be formed by double-shot injection molding. The second light distribution component 200 is arranged at the edge part of the first light distribution component 100, and the second light distribution component 200 is connected to the edge of the lamp body 400.

[0045] Specifically, the angle α between the lap joint surface 210 and the horizontal plane is greater than or equal to 40° and less than or equal to 75°. After part of the inclined light emitted from the light-emitting surface of the light guide component 300 is incident on the lap joint surface 210, it will be reflected obliquely upward. Compared with the traditional scheme where the lap joint surface 210 on the light distribution lens is horizontally arranged, it can avoid reflecting the light directly in front of the light-emitting part 120 of the light distribution lens, making the light reflected to an area that is not visible from the external front, and no obvious light bright spots can be seen from the front.

[0046] This application changes the optical path of the inclined light emitted by the light guide component 300, so that the light is no longer reflected directly forward to generate obvious brightness, thereby weakening the bright spots or reflected images, and solving the problem that stray light is easily generated when the light is incident on the lap joint of the light distribution lens.

[0047] Reference Figure 4 In some embodiments, α between the lapping surface 210 and the horizontal plane is greater than or equal to 45° and less than or equal to 75°. In this embodiment, the angular value range of the included angle α is larger. The figure shows the light distribution simulation diagram when α is 45°. It can be seen that when α is 45°, the light visible from the outside is significantly reduced and the bright spot is significantly weakened. And a large amount of light can be seen in the figure will be mapped to the two-color lapping part of the light distribution lens.

[0048] Moreover, when α is greater than or equal to 45° and less than or equal to 75°, a better light effect is produced; on this basis, a relatively shallow leather pattern is further provided on the lapping surface 210 to achieve an excellent light effect. At this time, the specifications of the leather pattern can be freely selected, and the selectivity of the depth and roughness of the leather pattern is stronger (basically any leather pattern model on the market can be selected), and the cost and processing difficulty are lower.

[0049] Reference Figure 6 In some embodiments, the surface of the optical path adjustment surface 211 has a leather pattern structure.

[0050] Specifically, as Figure 6 shown in the optical path diagram, in this embodiment, the surface of the optical path adjustment surface 211 having a leather pattern structure can diffuse and scatter the light irradiated on the surface, becoming diffuse reflected light, further reducing and weakening the intensity of the reflected light, weakening the stray light effect, and making the bright spot or reflection seen from the outside less obvious.

[0051] Reference Figure 4 In some embodiments, in the direction gradually approaching the lapping edge (light output direction), the lapping surface 210 includes an optical path adjustment surface 211 and a lapping edge surface 212 arranged in sequence, and the width L of the lapping edge surface 212 is 0.5-1.0 mm.

[0052] When the entire lapping part of the two-color or multi-color injection molding is made into a leather pattern structure, when the surface leather pattern treatment is performed on the lapping surface 210, material leakage also occurs on the light incident part 110 of the first light distribution component 100 to form a leather pattern structure, thereby causing a significant deviation between the light effect of the light output from the light distribution lens and the expected light effect.

[0053] In this embodiment, a lapping edge surface 212 with a width L of 0.5 - 1.0 mm in the light-emitting direction is reserved on the lapping surface 210. In this case, the optical path adjusting surface 211 is not directly connected to the light-incident part 110 of the first light distribution component 100 and has a width interval of 0.5 - 1.0 mm. There is an obvious interval of 0.5 - 1.0 mm between the leather grain structure and the light-incident part 110 of the first light distribution component 100, which can avoid the material flowing into the light-incident part 110 of the first light distribution component 100 when the surface leather grain treatment is carried out on the lapping surface 210, and the light emitted from the light distribution mirror can form an expected complete light pattern.

[0054] Reference Figure 4 , in some embodiments, the width L of the lapping edge surface 212 in the light-emitting direction is 0.5 mm. In this embodiment, the width L of the lapping edge surface 212 takes the minimum value of 0.5 mm. In this way, the area ratio of the leather grain structure on the entire lapping surface 210 will be the largest, which can scatter light to the greatest extent, reduce the reflected light, and basically eliminate the stray light. The bright spots or reflections are basically invisible from the outside.

[0055] Furthermore, as Figure 4 , the included angle β between the lapping edge surface 212 and the tangent line of the light-emitting part 120 at the lapping edge is 90° ± 30°. In this embodiment, when such a special setting of β is 90° ± 30° is adopted, even if part of the inclined light hits the narrow lapping edge surface 212, the lapping edge surface 212 will reflect this part of the light obliquely upward, avoiding the reflection of part of the light directly in front of the light-emitting part 120 of the light distribution mirror to produce a stray light effect.

[0056] Reference Figure 4 , in some embodiments, the range of the included angle α between the lapping surface 210 and the horizontal plane is 40° - 45°, and the depth range of the leather grain structure is 6 - 8 μm.

[0057] Specifically, the included angle α formed between the lapping surface 210 (or the optical path adjusting surface 211) and the horizontal plane ranges from 40° to 45°, which can effectively change the direction of the reflected light and weaken the bright spots or reflections; in this case, a leather grain structure with a depth of 6 - 8 μm, such as the K31 model, can be selected. It has a low cost and also reduces the difficulty of surface leather grain processing. The cost performance of the scheme is the highest and it is a commonly used choice.

[0058] Reference Figure 4 , in some embodiments, the range of the included angle α between the lapping surface 210 and the horizontal plane is 45° - 75°, and the depth range of the leather grain structure is 8 - 10 μm.

[0059] In this embodiment, the included angle α formed between the overlapping surface 210 (or the optical path adjustment surface 211) and the horizontal plane ranges from 45° to 75°, which has a better reflection effect on light and less stray light is formed after reflection; in this case, appropriately selecting coarser leather grains with a depth range of 8 - 10 μm, such as leather grains of model K33 or K35, has the best effect on eliminating bright spots or reflections, and few light bright spots or reflections can be seen from the front.

[0060] Reference Figure 2 , this application also provides an optical module, including:

[0061] A light guide component 300;

[0062] The light distribution lens as described above, the light distribution lens is arranged in the light emitting direction of the light guide component 300, and in the direction gradually away from the light guide component 300, the light incident part 110 and the light emitting part 120 of the first light distribution component 100 are arranged in sequence.

[0063] Specifically, the light emitting surface of the light guide component 300 emits light, and most of the light enters the first light distribution component 100 through the light incident part 110, and then emits from the light emitting part 120 to form an expected light pattern such as low beam, high beam, etc. After a small part of the light is obliquely incident on the overlapping surface 210, it will be reflected obliquely upward, which can avoid reflecting the light directly in front of the light emitting part 120 of the light distribution lens, making the light reflected to an area invisible from the external front, and no obvious light bright spots can be seen from the front.

[0064] The optical module of this application changes the optical path of the light, so that the light is no longer reflected directly forward to produce obvious brightness, thereby weakening the bright spots or reflections, and solving the problem that stray light is easily generated when the light is incident on the overlapping part of the light distribution lens.

[0065] Reference Figure 2 , in some embodiments, it further includes a fixing ring 500, which is arranged on the periphery of the light guide component 300; the fixing ring 500 is provided with a through hole for the light guide component 300 to pass through. The fixing ring 500 fixes the spatial position of the light guide component 300 and can also play a decorative role.

[0066] A vehicle includes the above-mentioned optical module. The above-mentioned vehicle can be an automobile, a train, a high-speed train or other vehicles that need to use vehicle lights.

[0067] The exemplary embodiments of the present utility model have been described in detail above with reference to the preferred embodiments. However, those skilled in the art can understand that without departing from the concept of the present utility model, various modifications and variations can be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present utility model can be made without exceeding the protection scope of the present utility model. The protection scope of the present utility model is determined by the appended claims.

Claims

1. A light distribution lens, characterized in that: include: The first light distribution component includes a light entrance part and a light exit part; A second light distribution component connected to the light incident portion, the second light distribution component comprising an overlapping surface, and a portion where the overlapping surface is connected to the light incident portion has an overlapping edge; Wherein, an angle α is formed between the overlapping surface and the horizontal plane, and α is greater than or equal to 40° and less than or equal to 75°.

2. The light distribution lens according to claim 1, characterized in that: The angle α between the overlapping surface and the horizontal plane is greater than or equal to 45° and less than or equal to 75°.

3. The light distribution lens according to claim 1, characterized in that: In a direction gradually approaching the overlapping edge, the overlapping surface includes an optical path adjustment surface and an overlapping edge surface which are arranged in sequence, and a width of the overlapping edge surface is 0.5-1.0 mm.

4. The light distribution lens according to claim 3, characterized in that: The surface of the optical path adjustment surface has a leather grain structure.

5. The light distribution lens according to claim 3, characterized in that: The width of the overlapping edge surface is 0.5 mm.

6. The light distribution lens according to claim 3, characterized in that: An included angle β between the overlapping edge surface and a tangent line of the light emitting portion at the overlapping edge is 90°±30°.

7. The light distribution lens according to claim 4, characterized in that: The angle α between the overlapped surface and the horizontal plane is in the range of 40°-45°, and the depth of the dermatoglyphic structure is in the range of 6-8 μm; or, The angle α between the overlapping surface and the horizontal plane is in the range of 45°-75°, and the depth of the dermatoglyphic structure is in the range of 8-10 μm.

8. An optical module, characterized in that: include: Light guide components; A light distribution mirror, as described in any one of claims 1-7, wherein the light distribution mirror is arranged in the light emitting direction of the light guide component, and in the direction gradually away from the light guide component, the light entrance part and the light exit part of the first light distribution component are arranged in sequence.

9. The optical module according to claim 8, characterized in that: It also includes a fixing ring, which is arranged on the periphery of the light-guiding component; the fixing ring is provided with a through hole for the light-guiding component to pass through.

10. A means of transport, characterized in that: Comprising the optical module described in claim 8 or 9.

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