Structure for improving forming stray light of light through hole of lens cone

Abstract

The utility model discloses a structure for improving stray light in lens barrel light through hole forming, which relates to the field of light through hole forming, and comprises a lens barrel, a first shading lens, a second shading lens and a third shading lens, the second shading lens is fixedly arranged between a first optical lens and a second optical lens on the left side, and the third shading lens is fixedly arranged between the first optical lens and a second optical lens on the right side. And the third shading lens is fixedly arranged between the two second optical lenses on the right side. According to the utility model, the first shading lens, the second shading lens and the third shading lens are arranged, the lens cone and the first optical lens are fixedly clamped with the first shading sheet, and the first shading sheet can preliminarily block light, so that the influence of stray light on an observation result can be preliminarily eliminated, and the experience feeling of a user can be improved; and the second shading lens and the third shading lens can further block the light, so that the influence of stray light on the observation result can be further eliminated, and the quality of the lens can be improved.

Description

Technical Field

[0001] The utility model relates to the field of light-through hole forming, in particular to a structure for improving stray light in the forming of a light-through hole in a lens barrel. Background Art

[0002] The design of the lens module has always been the key to the imaging quality of such products; however, due to the unreasonable design of the light hole structure of the lens barrel in the current lens module, the lens barrel will limit the light with a large field of view angle, affecting the lens formation.

[0003] After searching, the lens structure, camera module and electronic equipment with announcement number CN215416055U include a lens barrel, an optical lens and a gasket. The lens barrel has an object side end, and the lens barrel is provided with a accommodating groove. The bottom surface of the accommodating groove is arranged opposite to the object side surface of the object side end. The object side end of the lens barrel is provided with a light hole passing through the accommodating groove. The optical lens is arranged in the accommodating groove. The optical lens is used to receive light entering from the light hole. The gasket is arranged in the accommodating groove and is located between the bottom surface of the groove and the optical lens. The gasket is at least partially located on the light reflection path of the light hole to block the light from being reflected to the optical lens through the inner wall surface of the light hole.

[0004] However, existing lens structures, camera modules and electronic equipment have certain drawbacks during use. Although the lens structure can reduce the impact of stray light to a certain extent, it cannot block light at multiple levels, making it difficult to eliminate the impact of stray light on observation results, and thus it is difficult to improve the quality of the lens. Utility Model Content

[0005] In view of the problems existing in the above-mentioned existing lens structures, camera modules and electronic equipment, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a structure for improving the stray light formed by the lens barrel light hole, which solves the problem that although the lens structure can reduce the influence of stray light to a certain extent, it cannot block the light at multiple levels, and thus it is difficult to eliminate the influence of stray light on the observation results, and thus it is difficult to improve the quality of the lens.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A structure for improving stray light formed by a light-through hole in a lens barrel comprises a lens barrel, a first light-shielding lens, a second light-shielding lens, and a third light-shielding lens. The end of the lens barrel close to the object side is the object side end. A first optical mirror and a plurality of second optical mirrors are bonded to the inner wall of the lens barrel. The first light-shielding lens is fixedly arranged between the inner wall of the lens barrel and the first optical mirror, the second light-shielding lens is fixedly arranged between the first optical mirror and the second optical mirror on the left side, and the third light-shielding lens is fixedly arranged between the two second optical mirrors on the right side.

[0009] Preferably, the first optical lens includes a first optical zone and a first snap-fit ​​zone, each of the second optical lenses includes a second optical zone and a second snap-fit ​​zone, the first snap-fit ​​zone surrounds the first optical zone, and each of the second snap-fit ​​zones surrounds the corresponding second optical zone.

[0010] Preferably, the left inner wall of the lens barrel is provided with two first snap seams, and the two first snap seams are matched with the first snap seams. The inner wall of the lens barrel is provided with multiple second snap seams, and each second snap seam is matched with the corresponding second snap seam.

[0011] Preferably, the first light-shielding lens, the second light-shielding lens and the third light-shielding lens are all in sheet shape.

[0012] Preferably, the first shading lens, the second shading lens and the third shading lens are all transparent polyvinyl chloride sheets.

[0013] Preferably, the first optical mirror and the plurality of second optical mirrors are all made of polymethyl methacrylate mirrors.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. The utility model provides a first light-shielding lens, a second light-shielding lens, and a third light-shielding lens. The lens barrel and the first optical lens are fixedly connected with a first light-shielding sheet. The first light-shielding sheet can preliminarily block the light, thereby preliminarily eliminating the influence of stray light on the observation result, thereby improving the user experience. The second light-shielding lens and the third light-shielding lens can further block the light, thereby further eliminating the influence of stray light on the observation result, thereby improving the lens quality.

[0016] 2. In the present invention, by setting the first optical zone and the second optical zone, the first optical mirror includes the first optical zone and the first clamping zone, and each second optical mirror includes the second optical zone and the second clamping zone, so that the first optical zone and the second optical zone can ensure the smooth passage of light.

[0017] 3. In the present invention, by setting the first snap joint and the second snap joint, the two first snap joint areas are matched with the corresponding first snap joints respectively, and each second snap joint area is matched with the corresponding second snap joint, thereby improving the stability of the setting of the first snap joint area and the second snap joint area, and ensuring that the first optical lens and multiple second optical lenses can be stably set inside the lens barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 This is a schematic cross-sectional view of the utility model;

[0020] Figure 2 For the utility model Figure 1 A schematic diagram of the three-dimensional structure of the first light-shielding lens;

[0021] Figure 3 For the utility model Figure 1 A schematic diagram of the three-dimensional structure of the second light-shielding lens;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the three-dimensional structure of the third shading lens.

[0023] Description of reference numerals:

[0024] 1. Lens barrel; 2. First light-shielding lens; 3. Second light-shielding lens; 4. Third light-shielding lens; 5. Object-side end; 6. First optical lens; 7. Second optical lens; 8. First optical zone; 9. First snap-fit ​​zone; 10. Second optical zone; 11. Second snap-fit ​​zone; 12. First snap-fit ​​seam; 13. Second snap-fit ​​seam. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The embodiment of the utility model discloses a structure for improving stray light formed by a light hole of a lens barrel.

[0027] Example 1

[0028] The utility model provides Figure 1-4The structure shown in the figure for improving the stray light formed by the light-through hole of the lens barrel includes a lens barrel 1, a first shading lens 2, a second shading lens 3 and a third shading lens 4. The end of the lens barrel 1 close to the object side is the object side end 5. The inner wall of the lens barrel 1 is fitted with a first optical mirror 6 and multiple second optical mirrors 7. The first shading lens 2 is fixedly arranged between the inner wall of the lens barrel 1 and the first optical mirror 6, the second shading lens 3 is fixedly arranged between the first optical mirror 6 and the second optical mirror 7 on the left, and the third shading lens 4 is fixedly arranged between the two second optical mirrors 7 on the right. Through the arrangement of the first shading lens 2, the second shading lens 3 and the third shading lens 4, the first shading lens 2 can preliminarily block the light, thereby preliminarily eliminating the influence of stray light on the observation results, thereby improving the user's experience. The second shading lens 3 and the third shading lens 4 can further block the light, thereby further eliminating the influence of stray light on the observation results, thereby improving the lens quality.

[0029] Example 2

[0030] On the basis of the first embodiment, in order to ensure that light passes smoothly, Figure 1 As shown, the first optical mirror 6 includes a first optical zone 8 and a first clipping zone 9, and each second optical mirror 7 includes a second optical zone 10 and a second clipping zone 11. The first clipping zone 9 surrounds the first optical zone 8, and each second clipping zone 11 surrounds the corresponding second optical zone 10. By setting the first optical zone 8 and the second optical zone 10, it is possible to ensure that light can pass through smoothly.

[0031] Example 3

[0032] On the basis of the first embodiment, in order to improve the stability of the first clamping area 9 and the second clamping area 11, it is ensured that the first optical lens 6 and the plurality of second optical lenses 7 can be stably arranged inside the lens barrel 1, as shown in FIG. Figure 1 As shown, two first snap joints 12 are provided on the left inner wall of the lens barrel 1, and the two first snap joint areas 9 are matched with the first snap joints 12. A plurality of second snap joints 13 are provided on the inner wall of the lens barrel 1, and each second snap joint area 11 is matched with the corresponding second snap joint 13. By setting the first snap joint 12 and the second snap joint 13, the stability of the setting of the first snap joint area 9 and the second snap joint area 11 can be improved, thereby ensuring that the first optical lens 6 and the plurality of second optical lenses 7 can be stably set inside the lens barrel 1.

[0033] In order to ensure that it is suitable for clamping pads, simple to manufacture and low in cost, Figure 1-4 As shown, the first shading lens 2, the second shading lens 3 and the third shading lens 4 are all in sheet form, which reduces the thickness of the first shading lens 2, the second shading lens 3 and the third shading lens 4, thereby ensuring that they are suitable for snap-fitting and padding, and are simple to manufacture and low in cost.

[0034] In order to ensure that the first shading lens 2, the second shading lens 3 and the third shading lens 4 can have a stable shading function, as shown in FIG. Figure 1-4 As shown, the first shading lens 2, the second shading lens 3 and the third shading lens 4 are all transparent polyvinyl chloride sheets. The transparent polyvinyl chloride material has the characteristics of corrosion resistance and aging resistance, thereby ensuring that the first shading lens 2, the second shading lens 3 and the third shading lens 4 can have a stable shading function.

[0035] Finally, in order to ensure that the first optical mirror 6 and the plurality of second optical mirrors 7 have a high light transmission effect, as shown in FIG. Figure 1 As shown, the first optical mirror 6 and the plurality of second optical mirrors 7 are all made of polymethyl methacrylate mirrors. The polymethyl methacrylate material has a high light transmittance performance, thereby ensuring that the first optical mirror 6 and the plurality of second optical mirrors 7 can have a high light transmittance effect.

[0036] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A structure for improving stray light formed by a lens barrel through hole, comprising a lens barrel (1), a first light-shielding lens (2), a second light-shielding lens (3) and a third light-shielding lens (4), characterized in that: The end of the lens barrel (1) close to the object side is the object side end (5); the inner wall of the lens barrel (1) is fitted with a first optical mirror (6) and a plurality of second optical mirrors (7); the first light-shielding lens (2) is fixedly arranged between the inner wall of the lens barrel (1) and the first optical mirror (6); the second light-shielding lens (3) is fixedly arranged between the first optical mirror (6) and the second optical mirror (7) on the left; and the third light-shielding lens (4) is fixedly arranged between the two second optical mirrors (7) on the right.

2. The structure for improving stray light caused by forming a through hole in a lens barrel according to claim 1, characterized in that: The first optical lens (6) comprises a first optical zone (8) and a first snap-fit ​​zone (9); each of the second optical lenses (7) comprises a second optical zone (10) and a second snap-fit ​​zone (11); the first snap-fit ​​zone (9) surrounds the first optical zone (8); and each of the second snap-fit ​​zones (11) surrounds the corresponding second optical zone (10).

3. The structure for improving stray light caused by forming a through hole in a lens barrel according to claim 2, characterized in that: The left inner wall of the lens barrel (1) is provided with two first snap joints (12), and the two first snap joint areas (9) are matched with the first snap joints (12). The inner wall of the lens barrel (1) is provided with a plurality of second snap joints (13), and each second snap joint area (11) is matched with a corresponding second snap joint (13).

4. The structure for improving stray light caused by forming a through hole in a lens barrel according to claim 1, characterized in that: The first light-shielding lens (2), the second light-shielding lens (3) and the third light-shielding lens (4) are all in sheet form.

5. The structure for improving stray light caused by forming a through hole in a lens barrel according to claim 1, characterized in that: The first shading lens (2), the second shading lens (3) and the third shading lens (4) are all transparent polyvinyl chloride sheets.

6. The structure for improving stray light caused by forming a through hole in a lens barrel according to claim 1, characterized in that: The first optical mirror (6) and the plurality of second optical mirrors (7) are all polymethyl methacrylate mirrors.

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