Multi-layer shading combined optical lens structure

Abstract

The utility model relates to the technical field of optical lens combination, and discloses a multilayer shading combined optical lens structure, which comprises a fixed shell, an anti-fog sheet, a first concave lens, an optical filter, a first convex lens, an enhancement sheet and a plane lens are sequentially arranged in the fixed shell, a first shading sheet is arranged between the optical filter and the first convex lens, and a second shading sheet is arranged between the first concave lens and the plane lens. A light scattering area is formed between the optical filter and the first convex lens, a second light shielding sheet is arranged between the first convex lens and the reinforcing sheet, and a light gathering area is formed between the first convex lens and the reinforcing sheet. The utility model has the following advantages: 1, the influence of external light on the lens can be reduced through the external fixing shell and the plurality of internal light shielding sheets, and the definition is improved; 2, a plurality of convex lenses are matched with concave lenses, so that light rays penetrating through the lenses are more concentrated;

Description

Technical Field

[0001] This utility model relates to the field of optical lens assembly technology, and in particular to a multi-layer light-shielding combined optical lens structure. Background Technology

[0002] Optical lenses are important optical components that control and adjust light through optical principles such as reflection, refraction, and focusing. They also include optical lenses used in optical imaging equipment.

[0003] Camera equipment typically requires multiple optical lenses with different refractive methods to focus light. Because of the large spacing between the lenses, the length of the camera equipment is usually quite long. Moreover, when used in environments with strong light interference, such as automatic welding equipment, the image is blurry and the light-blocking effect is poor. In view of this, the inventor has made a new invention. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-layer light-shielding combined optical lens structure, which has the advantages of fixed combination of multiple optical lenses and good light focusing effect.

[0005] To achieve the above objectives, this utility model provides a multi-layer light-shielding combined optical lens structure, including a fixed shell. Inside the fixed shell, an anti-fog sheet, a first concave lens, a filter, a first convex lens, a reinforcing sheet, and a plane lens are sequentially arranged. A first light-shielding sheet is disposed between the filter and the first convex lens, creating a scattering region between them. A second light-shielding sheet is disposed between the first convex lens and the reinforcing sheet, creating a focusing region between them. Stepped portions are provided on both sides of the first convex lens. The first and second light-shielding sheets are connected to form a positioning groove for fixing the stepped portions.

[0006] Furthermore, the reinforcing sheet is provided with a second concave lens and a second convex lens, with the second concave lens facing the first convex lens.

[0007] Furthermore, one side of the planar lens is a flat surface, and the other side of the planar lens is provided with a groove that abuts against the second convex lens.

[0008] Preferably, a third light-shielding sheet is provided between the groove and the fixed shell.

[0009] Furthermore, the outer surface of the fixed shell is provided with a frosted layer.

[0010] Beneficial Effects: Compared with the prior art, the multi-layer light-shielding combined optical lens structure of this utility model includes a fixed shell, in which an anti-fog sheet, a first concave lens, a filter, a first convex lens, a reinforcing sheet, and a plane lens are sequentially arranged. A first light-shielding sheet is arranged between the filter and the first convex lens, forming a scattering area between them. A second light-shielding sheet is arranged between the first convex lens and the reinforcing sheet, forming a focusing area between them. This utility model has the following advantages: 1. By using an external fixed shell and multiple internal light-shielding sheets, the influence of external light on the lens can be reduced, improving clarity; 2. The combination of multiple convex and concave lenses makes the light transmitted through the lens more concentrated. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the lens distribution inside the fixed shell of this utility model.

[0012] Figure 2 This is a schematic diagram of a partial internal structure of the fixed shell of this utility model.

[0013] Figure 3 This is a schematic diagram of a partial external structure of the fixed shell of this utility model.

[0014] The reference numerals in the figures include:

[0015] Fixed shell--1, frosted layer--10, anti-fog sheet--11, first concave lens--12, filter--13, first convex lens--14, stepped portion--141, reinforcing sheet--2, second concave lens--21, second convex lens--22, plane lens--3, groove portion--31, first light shield--4, astigmatism area--41, second light shield--42, focusing area--43, positioning groove--44, third light shield--45. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1 to 3 This utility model will be described in detail.

[0017] This utility model discloses a multi-layer light-shielding combined optical lens structure, including a fixed shell 1. The fixed shell 1 contains, in sequence, an anti-fog sheet 11, a first concave lens 12, a filter 13, a first convex lens 14, a reinforcing sheet 2, and a plane lens 3. A first light-shielding sheet 4 is disposed between the filter 13 and the first convex lens 14, forming a light-scattering region 41 between the filter 13 and the first convex lens 14. A second light-shielding sheet 42 is disposed between the first convex lens 14 and the reinforcing sheet 2, forming a light-focusing region 43 between the first convex lens 14 and the reinforcing sheet 2. Stepped portions 141 are provided on both sides of the first convex lens 14. The first light-shielding sheet 4 and the second light-shielding sheet 42 are connected to form a positioning groove 44 for fixing the stepped portions 141. This utility model relates to a combined optical lens. Light is refracted by a first concave lens, then filtered by a filter 13 to remove harmful light. The remaining light enters the astigmatic region 41 and is collected by a first convex lens, converging towards the focusing region 43. A reinforcing sheet 2 collects the light from the focusing region 43 and enhances the focusing effect. Finally, the light passes through a plane mirror, and through an external fixing shell 1 and multiple internal light-shielding sheets, the influence of external light on the first convex lens 14 is reduced, improving clarity. More specifically, this combined optical lens is suitable for high-precision observation equipment, irregularly shaped cat's-eye lenses, etc. The fixing shell 1, anti-fog sheet 11, first concave lens 12, filter 13, first convex lens 14, reinforcing sheet 2, and plane mirror 3 are all made of glass. The anti-fog sheet 11 allows light to pass through while preventing water vapor formation. The combination of multiple convex and concave lenses concentrates the light transmitted through the lens.

[0018] The reinforcing sheet 2 is provided with a second concave lens 21 and a second convex lens 22, with the second concave lens 21 facing the first convex lens 14. The second concave lens 21 and the second convex lens 22 are combined to form an adjustable focusing lens structure, with a gap between the second concave lens 21 and the second convex lens 22. The second concave lens 21 collects the light transmitted through the first convex lens 14, and then focuses the light through the second convex lens.

[0019] One side of the planar lens 3 is a flat surface, and the other side of the planar lens 3 is provided with a groove 31 that abuts against the second convex lens 22. The groove 31 is a mirror structure of the convex lens, and the groove 31 can collect light and allow the light to pass through the planar lens 3 in parallel.

[0020] A third light-shielding plate 45 is provided between the groove portion 31 and the fixing shell 1. The third light-shielding plate 45 cooperates with the fixing shell 1 to fix the plane lens 3. Similarly, the third light-shielding plate 45 further reduces the influence of side light on the plane lens 3.

[0021] The outer surface of the mounting shell 1 is provided with a frosted layer 10. The mounting shell 1 is made of high-strength glass, which is not easily damaged. The frosted layer 10 not only reduces the light that penetrates into the interior from the sides, but also has a non-slip surface, making it easy to fix to the equipment in use.

[0022] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this invention. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A multi-layer light-shielding combined optical lens structure, comprising a fixing shell (1), characterized in that: The fixed shell (1) is provided with an anti-fog sheet (11), a first concave lens (12), a filter (13), a first convex lens (14), a reinforcing sheet (2), and a plane lens (3) in sequence. A first light-shielding sheet (4) is provided between the filter (13) and the first convex lens (14) to form a diffused light area (41) between the filter (13) and the first convex lens (14). A second light-shielding sheet (42) is provided between the first convex lens (14) and the reinforcing sheet (2) to form a focused light area (43) between the first convex lens (14) and the reinforcing sheet (2). Stepped portions (141) are provided on both sides of the first convex lens (14). The first light-shielding sheet (4) and the second light-shielding sheet (42) are connected to form a positioning groove (44) for fixing the stepped portions (141).

2. The multi-layer light-shielding combined optical lens structure according to claim 1, characterized in that: The reinforcing sheet (2) is provided with a second concave lens (21) and a second convex lens (22), with the second concave lens (21) facing the first convex lens (14).

3. The multi-layer light-shielding combined optical lens structure according to claim 2, characterized in that: One side of the planar lens (3) is a plane, and the other side of the planar lens (3) is provided with a groove (31) that abuts against the second convex lens (22).

4. The multi-layer light-shielding combined optical lens structure according to claim 3, characterized in that: A third light-shielding plate (45) is provided between the groove (31) and the fixed shell (1).

5. A multi-layer light-shielding combined optical lens structure according to any one of claims 1 to 4, characterized in that: The fixed shell (1) is provided with a frosted layer (10) on the outside.

Images