A bifocal lens with light-homogenizing performance

Abstract

The utility model relates to a convex lens, and specifically to a bifocal lens with light homogenization performance, which specifically includes a convex lens body, characterized in that: the convex lens body is symmetrical in left and right and front and back, and is composed of an optical spherical body and an optical base plate, the optical spherical body is arranged on an end surface of the optical base plate and is connected to it as a whole, the side of the optical spherical body connected to the optical base plate is planar, the side of the optical spherical body away from the optical base plate is used as a light emitting surface and is spherical, the end surface of the optical base plate away from the optical spherical body is used as a light incident surface and is also spherical, and a diamond lattice mesh structure is evenly arranged on the light emitting surface. The utility model adopts the above structure to effectively solve the problem of poor light homogenization of conventional convex lenses, and has the advantages of simple structure, easy manufacturing, practicality and high efficiency.

Description

Technical Field

[0001] The utility model relates to a convex lens, in particular to a bifocal lens with light homogenization performance. Background Art

[0002] With the continuous advancement of technology, LED light sources have more advantages and become the preferred solution for new car light sources.

[0003] The relevant countries and industries have mandatory light distribution requirements for the light and dark cutoff lines of the low beam in the vehicle headlights. The projection convex lens headlights have been used for more than 20 years and are widely used in the design and application of the high and low beam of the headlights due to their unique advantages. However, in the process of processing the high and low beam convex lens, a specially designed clamping tool is required to avoid damage to the optical surface, which not only increases the cost, but also greatly increases the processing time and reduces the production efficiency by clamping the convex lens with the clamping tool. In addition, the existing convex lens has poor light uniformity performance during use and cannot meet the needs. Therefore, in order to solve the above problems, it is particularly important to design a dual-light lens with light uniformity performance. Summary of the invention

[0004] In order to solve the above problems, the utility model designs a bifocal lens with light homogenization performance. A diamond lattice mesh structure is arranged on the spherical light-emitting surface. The diamond lattice mesh structure greatly improves the light homogenization performance and increases the practical performance.

[0005] In order to solve the above-mentioned technical problems, the utility model provides a bifocal lens with uniform light performance, including a convex lens body, characterized in that: the convex lens body is symmetrical left-right and front-back, the convex lens body is composed of an optical spherical body and an optical base plate, the optical spherical body is arranged on an end surface of the optical base plate and is connected to it as a whole, the side of the optical spherical body connected to the optical base plate is planar, the side of the optical spherical body away from the optical base plate serves as a light emitting surface and is spherical, the end surface of the optical base plate away from the optical spherical body serves as a light incident surface and is also spherical, and a diamond lattice mesh structure is evenly arranged on the light emitting surface.

[0006] Further: both left and right ends of the optical spherical body are provided with vertical planes connected to the optical bottom plate, and one end of the vertical plane connected to the light emitting surface is in an arc shape.

[0007] Furthermore: both the front and rear ends of the optical spherical body are provided with arc-shaped surfaces connected to the optical bottom plate, and one end of the arc-shaped surface connected to the light-emitting surface is also in an arc shape.

[0008] Furthermore: protrusions for positioning are provided in the middle of the front and rear ends of the optical base plate, the protrusions match the side surfaces of the optical base plate, and the lower end surfaces thereof are also in an arc shape.

[0009] Furthermore: the left and right ends of the optical base plate are provided with clamping parts for fixing, the end of the clamping part away from the optical spherical body is upwardly tilted, and the clamping part is provided with a concave notch.

[0010] After adopting the above structure, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model is provided with a diamond lattice mesh structure on the spherical light-emitting surface, which greatly improves the light uniformity performance and increases the practical performance.

[0012] 2. The utility model is provided with positioning parts and clamping parts at the front and rear ends and the left and right ends of the optical base plate, respectively, and the positioning parts and the clamping parts facilitate fixation.

[0013] 3. The utility model has the advantages of simple structure, easy manufacture, practicality and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0016] Figure 2 It is a side structural diagram of the utility model.

[0017] Figure 3 It is the main structural diagram of the utility model.

[0018] Figure 4 It is a top view of the structure of the utility model. DETAILED DESCRIPTION

[0019] like Figure 1 , Figure 2 and Figure 3A bifocal lens with light-homogenizing performance is shown, comprising a convex lens body, the convex lens body is symmetrical left-right and front-back, the convex lens body is composed of an optical spherical body 1 and an optical base plate 2, the optical spherical body is arranged on one end face of the optical base plate and is connected to it as a whole, the side of the optical spherical body connected to the optical base plate is planar, the side of the optical spherical body away from the optical base plate is used as the light-emitting surface 1-1 and is spherical, the end face of the optical base plate away from the optical spherical body is used as the light-incoming surface 2-1 and is also spherical, and the light-emitting surface is evenly provided with a diamond lattice mesh structure. The utility model is provided with a diamond lattice mesh structure on the spherical light-emitting surface, and the diamond lattice mesh structure greatly improves the light-homogenizing performance and increases the practical performance; and the design also has the advantages of simple structure, easy manufacture, practicality and high efficiency.

[0020] like Figure 3 The left and right ends of the optical spherical body are both provided with vertical planes 1-2 connected to the optical base plate, and the end of the vertical plane connected to the light-emitting surface is in an arc shape; the front and rear ends of the optical spherical body are both provided with arc surfaces 1-3 connected to the optical base plate, and the end of the arc surface connected to the light-emitting surface is also in an arc shape.

[0021] like Figure 4 The middle positions of the front and rear ends of the optical base plate are provided with protrusions 2-2 for positioning, the protrusions match the side surfaces of the optical base plate, and the lower end surfaces thereof are also in the shape of arcs; the left and right ends of the optical base plate are provided with clamping parts 2-3 for fixing, the ends of the clamping parts away from the optical spherical body are upwardly tilted, and the clamping parts are provided with concave notches. The utility model is provided with positioning parts and clamping parts at the front and rear ends and the left and right ends of the optical base plate, respectively, and the positioning parts and clamping parts are used to facilitate fixing.

[0022] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims

1. A bifocal lens with light homogenization performance, comprising a convex lens body, characterized in that: The convex lens body is symmetrical in left-right and front-back directions. The convex lens body is composed of an optical spherical body (1) and an optical base plate (2). The optical spherical body is arranged on an end surface of the optical base plate and is connected to the optical base plate as a whole. The side of the optical spherical body connected to the optical base plate is planar. The side of the optical spherical body away from the optical base plate serves as a light emitting surface (1-1) and is spherical. The end surface of the optical base plate away from the optical spherical body serves as a light incident surface (2-1) and is also spherical. The light emitting surface is evenly provided with a diamond grid-like structure.

2. A bifocal lens with light homogenization performance according to claim 1, characterized in that: The left and right ends of the optical spherical body are both provided with vertical planes (1-2) connected to the optical bottom plate, and one end of the vertical plane connected to the light emitting surface is in an arc shape.

3. The bifocal lens with light homogenization performance according to claim 1, characterized in that: Both the front and rear ends of the optical spherical body are provided with arcuate surfaces (1-3) connected to the optical bottom plate, and one end of the arcuate surface connected to the light emitting surface is also in an arc shape.

4. The bifocal lens with light homogenization performance according to claim 1, characterized in that: The middle positions of the front and rear ends of the optical base plate are both provided with protruding parts (2-2) for positioning. The protruding parts match the side surfaces of the optical base plate, and the lower end surfaces thereof are also in an arc shape.

5. The bifocal lens with light homogenization performance according to claim 1, characterized in that: The left and right ends of the optical base plate are provided with clamping parts (2-3) for fixing, one end of the clamping part away from the optical spherical body is upwardly tilted, and a concave notch is provided on the clamping part.

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