Optical structure, vehicle lamp with optical structure and vehicle with vehicle lamp
By introducing virtual focus and Fresnel lens features into the optical structure and combining it with concentric arc design, the problem of low light efficiency of traditional optical units is solved and higher light efficiency is achieved.
Patent Information
- Application Number
- CN202423107145.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Traditional optical units have low light efficiency and cannot meet the growing demand.
The optical structure with a virtual focus at the light entrance is combined with the Fresnel lens characteristics at the light exit to achieve light collimation, and the light efficiency is improved through concentric arc features and rotation design.
The light emission angle is improved, the light efficiency is higher, and the light can be used more effectively.
Smart Images
Figure CN223470070U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to car light technical field especially, relate to an optical structure and have its car light and have the vehicle of this car light. BACKGROUND
[0002] The light efficiency of the conventional primary optical unit is low, and it is difficult to adapt to the changing needs. SUMMARY
[0003] The utility model solves the technical problem in the prior art, and provides an optical structure, a car light with the optical structure and a vehicle with the car light.
[0004] The utility model solves the technical problems thereof by adopting the following technical scheme: an optical structure, comprising a light inlet portion and a light outlet portion, the light inlet portion has a virtual focal point, in a plane passing through an optical axis, the profile line of the light outlet portion has a Fresnel lens feature.
[0005] The optical structure of the utility model, if the light inlet portion does not have a virtual focal point, but has a real focal point, then the reverse extension line of the emergent light rays of the optical structure in a plane converges on the real focal point, and the angle of the emergent light rays of the real focal point is larger than that of the virtual focal point, that is, when another optical unit is arranged in the emergent direction of the optical structure to receive the light rays emitted by the optical structure, the virtual focal point can receive more light rays, that is, the light efficiency is higher.
[0006] Further, in the plane perpendicular to the optical axis, the cross section of the optical structure at least partially has a concentric circular arc feature.
[0007] Further, in the plane passing through the optical axis, the focal point of the profile line coincides with the position of the virtual focal point of the light inlet portion, and in the plane, the optical structure has the function of collimating light rays.
[0008] Further, the profile line of the optical structure is rotated around the direction passing through the virtual focal point and perpendicular to the optical axis to form the optical structure.
[0009] Further, the profile line is rotated around the optical axis to form the optical structure.
[0010] A car light comprises the above optical structure.
[0011] A vehicle comprises the above car light.
[0012] The utility model has the advantages that,
[0013] 1. By cooperating of the Fresnel lens and the light inlet part, the collimation of the light is realized, and the exit angle of the light after passing through the optical structure is smaller, and the light efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS
[0014] The utility model is further explained below in combination with the drawings and examples.
[0015] Fig. 1 It is the structure schematic diagram of embodying a kind of optical structure whole in the utility model.
[0016] Fig. 2 It is the light propagation diagram in YZ plane in the embodiment 1 of the utility model.
[0017] Fig. 3 It is the light propagation diagram in XZ plane in the embodiment 1 of the utility model.
[0018] Fig. 4 It is the schematic diagram of embodying optical structure in the embodiment 2 of the utility model.
[0019] In the drawing: 1, light inlet part;2, light outlet part. DETAILED DESCRIPTION
[0020] The utility model is further explained in combination with the drawings. These drawings are all simplified schematic diagram, and only with the schematic way to show the basic structure of the utility model, so it only shows the structure related to the utility model.
[0021] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more. In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0022] The utility model discloses an optical structure and a vehicle lamp with same and a vehicle with the vehicle lamp.
[0023] Refer to Figs. 1 to 4 An optical structure, comprising a light inlet part 1, a light outlet part 2 and a light source F, the light inlet part 1 has a virtual focal point F', in a plane passing through the optical axis, the profile line of the light outlet part 2 has Fresnel lens characteristics.
[0024] The line defined by F' and F is the optical axis of the optical structure, and the light outlet direction of the optical structure is defined as the vertical direction Z (this is only an embodiment, and other directions can also be used), and the X axis is perpendicular to Z.
[0025] Embodiment 1:
[0026] In the YZ plane, the profile line of the light inlet part 1 has a virtual focal point F', that is, the light emitted at the light source F converges at F' after refraction through the light inlet part 1. The profile line of the light outlet part 2 in the YZ plane has Fresnel lens characteristics, that is, it is spliced in a stepped shape by a plurality of curves, and the profile line focal point of the light outlet part 2 coincides with the profile line focal point of the light inlet part 1. In the XZ plane, the light emitted from the light source F passes through the light inlet part 1 and the light outlet part 2 and is emitted as parallel light, that is, in the YZ plane, the optical structure has the function of collimating light.
[0027] In the XZ plane, the profile line of the optical structure is a concentric arc with the virtual focal point F' as the center. Namely, the profile line in the YZ plane is rotated around an axis passing through the virtual focal point F' and parallel to the Y axis, and the optical structure can be formed. In the XZ plane, the light rays emitted from the F point pass through the light-in part 1 and the light-out part 2 and then exit at a certain angle, and the reverse extension lines thereof converge at F'.
[0028] Embodiment 2:
[0029] The difference from Embodiment 1 is that the profile line in the YZ plane is rotated around the optical axis to form the optical structure.
[0030] In the XZ plane, the profile line of the optical structure is a concentric arc with the virtual focal point F' as the center. Namely, the profile line in the YZ plane is rotated around an axis passing through the virtual focal point F' and parallel to the Y axis, and the optical structure can be formed. In the XZ plane, the light rays emitted from the F point pass through the light-in part 1 and the light-out part 2 and then exit at a certain angle, and the reverse extension lines thereof converge at F'.
[0031] In addition, the present scheme is only a primary optical unit, and a complete optical system is supplemented with other optical units according to different functions.
[0032] With the above ideal embodiments according to the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents in the specification, and must be determined according to the scope of the claims.
Claims
1. An optical structure, characterized by, An optical structure comprising an entrance portion (1) having a virtual focal point and an exit portion (2) having a profile line with Fresnel lens characteristics in a plane through the optical axis; The focal point of the profile line of the exit portion (2) coincides with the position of the virtual focal point of the entrance portion (1) in a plane through the optical axis; in this plane the optical structure has a light collimating effect.
2. An optical structure according to claim 1, wherein, In a plane perpendicular to the optical axis the cross-section of the optical structure has at least partly concentric circular arc characteristics.
3. An optical structure according to claim 1, wherein, The profile line of the optical structure is rotated around the direction through the virtual focal point and perpendicular to the optical axis to form the optical structure.
4. An optical structure according to claim 1, wherein, The profile line is rotated around the optical axis to form the optical structure.
5. A vehicle lamp characterized by An optical structure according to any one of claims 1-4.
6. A vehicle characterized by comprising: A vehicle lamp according to claim 5.