Thick-wall part optical structure, vehicle lamp and vehicle

Abstract

The utility model relates to the technical field of vehicle lamps, in particular to a thick-wall part optical structure, a vehicle lamp and a vehicle, the thick-wall part optical structure comprises a primary optical unit, the primary optical unit comprises a light-in collimation part and a light-out part, the light-in collimation part collimates light rays emitted by a light source, and the light-out part converges the light rays collimated by the light-in collimation part to a point O; the secondary optical unit comprises a light incident surface and a full reverse surface, the light incident surface is used for refracting and then entering the light at the point O, and the full reverse surface is used for reflecting and then emitting part of the light entering the light incident surface. Light rays emitted by a light source are collimated into approximately parallel light through the incident light collimation part, then the light rays are converged to a point O through the light emitting part, the light rays at the point O are diverged and enter the incident light surface, one part of the light rays entering the incident light surface are directly emitted, and one part of the light rays are emitted after being reflected by the full-back surface. Meanwhile, the LED lamp is different from pattern diffusion, and the angle of emitted light rays can be relatively concentrated.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a thick-wall optical structure, a vehicle lamp and a vehicle. Background Art

[0002] At present, in the lighting scheme of signal lamp functions in the vehicle lamp industry, most of them adopt the form of thick-wall parts, and thick-wall parts account for a high proportion in the current optical application field of lamps.

[0003] However, in the existing technologies, the thick-wall part solutions generally have the disadvantages of low efficiency, uneven lighting effect or complex shape. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: In order to solve the technical problems in the existing technologies, the utility model provides a thick-wall optical structure, a vehicle lamp and a vehicle, which mainly consist of a primary optical unit and a secondary optical unit, with a simple structure, clear principle, and use a simple light strip to improve the uniformity. The collimating structure and the patterned surface act together to improve the uniformity of the lighting effect; at the same time, unlike simple patterned diffusion, it can make the relative angle of the outgoing light more concentrated. It improves the dark spot part between the existing collimating light guide structures, greatly improves and enhances the uniformity of the thick-wall part, and does not increase the volume of the thick-wall part. Moreover, due to its simple structure and low cost, it is convenient to promote and widely use.

[0005] The technical solution adopted by the utility model to solve its technical problems is: A thick-wall optical structure includes a primary optical unit, which includes a light-incident collimating part and a light-emitting part. The light-incident collimating part collimates the light emitted by the light source, and the light-emitting part converges the light collimated by the light-incident collimating part to point O; a secondary optical unit, which includes a light-incident surface and a total reflection surface. The light-incident surface is used for the light at point O to enter after refraction, and the total reflection surface is used for reflecting and emitting part of the light entering the light-incident surface.

[0006] In the thick-wall optical structure of the utility model, the light emitted by the light source is collimated into approximate parallel light by the light-incident collimating part, and then the approximate parallel light is converged to point O by the light-emitting part. The light at point O diverges and enters the light-incident surface. For the light entering the light-incident surface, part of the light is directly emitted, and part of the light is emitted after being reflected by the total reflection surface. The light-incident surface and the total reflection surface act together to improve the lighting uniformity, and at the same time, different from the patterned diffusion, it can make the angle of the outgoing light relatively concentrated.

[0007] Further, the light-incident collimating part is a condenser, a Fresnel lens or a lens.

[0008] Further, the light-emitting part includes a patterned surface.

[0009] Further, the light incident surface is concave, convex or flat.

[0010] Further, the total reflection surface is flat or curved.

[0011] Further, the light incident collimation part includes a collimated light incident surface and a refraction surface. The collimated light incident surface is used for the light of the light source to enter, and the refraction surface is used to emit the light entering from the collimated light incident surface at a certain angle.

[0012] Further, the secondary optical unit and the primary optical unit can change the angle on the thick-walled part to change the overall angle of the emitted light.

[0013] Further, there are two total reflection surfaces, which are located on both sides of the light incident surface. The two total reflection surfaces are symmetrically inclined, and the included angle between the two total reflection surfaces is.

[0014] A vehicle lamp includes the above-mentioned thick-walled part optical structure.

[0015] A vehicle includes the above-mentioned vehicle lamp.

[0016] The beneficial effects of the present utility model are as follows

[0017] 1. The light emitted by the light source is collimated into approximately parallel light by the light incident collimation part, and then the approximately parallel light is converged to point O by the light emitting part. The light at point O is then diverged and enters the light incident surface. For the light entering the light incident surface, part of the light is directly emitted, and part of the light is emitted after being reflected by the total reflection surface. The light incident surface and the total reflection surface act together to improve the lighting uniformity. At the same time, different from pattern diffusion, it can make the angle of the emitted light relatively concentrated;

[0018] 2. By converging the light through the light emitting part, the waste of light can be reduced;

[0019] 3. By arranging the collimated light incident surface and the refraction surface, the emission angle of the light can be changed, so as to adapt to the situation of limited installation space. Description of the Drawings

[0020] The present utility model will be further described below with reference to the drawings and embodiments.

[0021] Figure 1 It is a schematic structural diagram showing the overall thick-walled part optical structure in the present utility model.

[0022] Figure 2 It is a schematic side view showing the overall thick-walled part optical structure in the present utility model.

[0023] Figure 3 It is a schematic front view showing the overall thick-walled part optical structure in the present utility model.

[0024] Figure 4 It is a rear view schematic diagram showing the overall optical structure of the thick-walled part in the present utility model.

[0025] Figure 5 It is an optical path schematic diagram showing that one light incident collimation part in the optical structure of the thick-walled part corresponds to multiple light incident surfaces.

[0026] Figure 6 is Figure 5 a partial enlarged view of part A in

[0027] Figure 7 It is a side view schematic diagram showing that one light incident collimation part in the optical structure of the thick-walled part corresponds to one light incident surface.

[0028] Figure 8 It is a top view schematic diagram showing that one light incident collimation part in the optical structure of the thick-walled part corresponds to one light incident surface.

[0029] Figure 9 It is an optical path schematic diagram showing that the light becomes more and more concentrated after being reflected multiple times on the total reflection surface in the present utility model.

[0030] Figure 10 It is a structural schematic diagram showing the overall light incident collimation part in the present utility model.

[0031] Figure 11 It is an optical path schematic diagram showing the light incident collimation part in the present utility model.

[0032] Figure 12 It is a structural schematic diagram showing the application of the optical structure of the thick-walled part to an inclined light emitting surface in the present utility model.

[0033] In the figure: 1. Light source; 2. Primary optical unit; 21. Light incident collimation part; 211. Collimation light incident surface; 212. Refraction surface; 22. Light emitting part; 3. Secondary optical unit; 31. Light incident surface; 32. Total reflection surface. Detailed implementation manners

[0034] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic way, so they only show the components related to the present utility model.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more. In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] In the first aspect, the present utility model discloses an optical structure for a thick-walled part.

[0037] Referring to Figures 1 to 12 , an optical structure for a thick-walled part includes a primary optical unit 2 and a secondary optical unit 3. The primary optical unit 2 includes a light incident collimating part 21 and a light output part 22. The light incident collimating part 21 collimates the light emitted by the light source 1 into parallel light or approximately parallel light, and the angular difference between the approximately parallel light and the parallel light does not exceed ±10°. The light output part 22 converges the light collimated by the light incident collimating part 21 to point O. The secondary optical unit 3 includes a light incident surface 31 and two total reflection surfaces 32, and the two total reflection surfaces 32 are located on both sides of the light incident surface 31. The light incident surface 31 is used for the light at point O to enter after refraction, and the total reflection surfaces 32 are used for reflecting and emitting part of the light entering the light incident surface 31. Point O is located near the light incident surface 31 to ensure that all the light emitted by the primary optical unit 2 enters the secondary optical unit 3.

[0038] Specifically, the light incident collimating part 21 can be a condenser, a Fresnel lens or a lens, or other structures that can input parallel light. The light output part 22 can be a patterned surface or other continuous regular surfaces.

[0039] Further, the light incident surface 31 adopts a concave surface, a convex surface or a flat surface, and preferably a concave surface. Referring to Figures 5 to 8, each light incident collimating part 21 can correspond to multiple light incident surfaces 31, or can also correspond to only one light incident surface 31.

[0040] Furthermore, the entire reflecting surface 32 is planar or curved, preferably planar.

[0041] The two entire reflecting surfaces 32 are arranged in a propping and inclined manner, and the distance between the two entire reflecting surfaces 32 near one end of the primary optical unit 2 is less than the distance between the two entire reflecting surfaces 32 far from one end of the primary optical unit 2. The angle between the two entire reflecting surfaces 32 is ±40 degrees, preferably ±20 degrees. Due to the inclined arrangement of the two entire reflecting surfaces 32, the light reflected between the two entire reflecting surfaces 32 can be concentrated towards the symmetry center line of the two entire reflecting surfaces after multiple reflections, thereby making the light in the main direction more uniform. Refer to Figure 9 , the angle between the light and the symmetry center line of the two entire reflecting surfaces becomes smaller and smaller, that is, angle 1 > angle 2 > angle 3 > angle 4.

[0042] Refer to Figure 10 and Figure 11 , in another embodiment, the light incident collimating part 21 includes a collimating light incident surface 211 and a refracting surface 212. The collimating light incident surface 211 is used for the light of the light source 1 to enter, and the refracting surface 212 is used to emit the light entering from the collimating light incident surface 211 at a certain angle, which is 90° in this embodiment. This solution is especially suitable for the situation where the installation space is limited, and can reduce the length requirement in a single direction during installation.

[0043] Furthermore, refer to Figure 10 and Figure 11 , the secondary optical unit 3 and the primary optical unit 2 can change the angle on the thick-walled part to change the overall angle of the emitted light.

[0044] Working principle: The light emitted by the light source 1 is collimated into approximately parallel light by the light incident collimating part 21, and then the approximately parallel light is converged to point O by the light emitting part 22. The light at point O diverges and enters the light incident surface 31. For the light entering the light incident surface 31, part of the light is directly emitted, and part of the light is emitted after being reflected by the entire reflecting surface 32. The light incident surface 31 and the entire reflecting surface 32 act together to improve the lighting uniformity, and at the same time, different from pattern diffusion, it can make the angle of the emitted light relatively concentrated.

[0045] In the second aspect, the present invention discloses a vehicle lamp.

[0046] A vehicle lamp includes the above-mentioned thick-walled part optical structure.

[0047] In the third aspect, the present invention discloses a vehicle.

[0048] A vehicle includes the above-mentioned vehicle lamp.

[0049] Based on the above-mentioned ideal embodiments of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An optical structure for a thick-walled part, characterized in that Comprising: A primary optical unit (2), comprising a light incident collimating portion (21) and a light output portion (22), wherein the light incident collimating portion (21) collimates the light emitted by the light source (1), and the light output portion (22) converges the light collimated by the light incident collimating portion (21) to point O; A secondary optical unit (3), comprising a light incident surface (31) and a total reflection surface (32), wherein the light incident surface (31) is for the light at point O to enter after refraction, and the total reflection surface (32) is for reflecting and emitting part of the light entering the light incident surface (31); There are two of the total reflection surfaces (32), and they are located on both sides of the light incident surface (31). The two total reflection surfaces (32) are symmetrically inclined. The distance between the two total reflection surfaces (32) at the end close to the primary optical unit (2) is less than the distance between the two total reflection surfaces (32) at the end far from the primary optical unit (2). The included angle between the two total reflection surfaces (32) is ±40 degrees.

2. The optical structure of the thick-walled part according to claim 1, characterized in that, The light incident collimating portion (21) is a condenser, a Fresnel lens or a lens.

3. The optical structure of the thick-walled part according to claim 1, characterized in that, The light output portion (22) includes a patterned surface.

4. The optical structure of the thick-walled member according to claim 1, characterized in that The light incident surface (31) is a concave surface, a convex surface or a flat surface.

5. The optical structure of the thick-walled part according to claim 1, wherein The total reflection surface (32) is a flat surface or a curved surface.

6. The optical structure of the thick-walled part according to claim 1, wherein, The light incident collimating portion (21) includes a collimating light incident surface (211) and a refracting surface (212). The collimating light incident surface (211) is for the light of the light source (1) to enter, and the refracting surface (212) is for emitting the light entering the collimating light incident surface (211) at a certain angle.

7. The optical structure of the thick-walled member according to claim 1, wherein The secondary optical unit (3) and the primary optical unit (2) can change the angle on the thick-walled member to change the overall angle of the emitted light.

8. A vehicle lamp, characterized in that, Comprising the thick-walled member optical structure according to any one of claims 1-7.

9. A vehicle, characterized in that, Comprising the vehicle lamp according to claim 8.

Images