Imaging optical lens group

Abstract

The utility model discloses an imaging optical lens group, which comprises a lens shell, a plane mirror arranged at the top of a first lens, a first shading pad arranged outside the inner sides of the first lens and a second lens, a backing ring arranged at the rear side of a sixth lens, and a light absorption layer arranged at the top of the plane mirror. Nested parts are arranged on the left side and the right side of the plane mirror, the plane mirror is connected with the lens shell in a nested mode, second shading pads are arranged on the outer portions of the inner sides of the second lens and the third lens, third shading pads are arranged on the outer portions of the inner sides of the fourth lens and the fifth lens, and a first shading ring is arranged on the rear side of the third lens. A second shading ring is arranged on the rear side of the fifth lens, a shading pad can help an optical system to better adapt to different environmental conditions, the stability and reliability of the system are improved, meanwhile, the shading ring supports the lenses while reducing optical crosstalk, and the shading ring is also a common arrangement and is used for protecting the lenses and reducing interference of light rays among the lenses.

Description

Technical Field

[0001] The utility model belongs to the technical field related to optical lenses, and in particular relates to an imaging optical lens group. Background Art

[0002] An optical lens is a transparent medium that can refract, reflect and transmit light waves. It is usually made of materials such as glass or plastic and has a specific curvature that can change the propagation path of light, thereby controlling the direction of light. Optical lenses are widely used in a variety of optical devices such as photographic lenses, telescopes, microscopes, and are an indispensable part of modern technology. The design and manufacture of optical lenses require precise control of their physical properties to ensure that light propagates along the expected path. The curvature of the lens, the refractive index of the material, and the surface treatment will affect the final image quality. In high-end applications, such as astronomical telescopes or medical imaging equipment, the manufacturing precision of the lenses is very high to ensure image clarity and stability.

[0003] However, due to structural limitations, the existing optical lens group has a large side surface. When light shines on the side surface, stray light is generated, which affects the imaging quality of the lens module. There is not enough space on the lens to set up a structure that can eliminate stray light, resulting in low imaging quality. Utility Model Content

[0004] The purpose of the utility model is to provide an imaging optical lens group to solve the problem that due to structural limitations of the existing optical lens group mentioned in the above background technology, the first layer of lenses has a larger side surface, and when light is irradiated to the side surface, stray light will be formed, affecting the imaging quality of the lens module, and there is not enough space on the lens to set a structure that can eliminate stray light, resulting in low imaging quality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an imaging optical lens assembly, comprising a lens housing;

[0006] A first lens is arranged at the top position inside the lens housing, a second lens is arranged at the rear side of the first lens, a third lens is arranged at the rear side of the second lens, a fourth lens is arranged at the rear side of the third lens, a fifth lens is arranged at the rear side of the fourth lens, a sixth lens is arranged at the position of the fifth lens, and the lenses arranged in the array are connected to the lens housing by snapping;

[0007] A plane mirror is arranged at the top of the first lens, a first light shielding pad is arranged at the inner outer position of the first lens and the second lens, and a pad ring is arranged at the rear side of the sixth lens.

[0008] Preferably, a light absorbing layer is provided at the top of the plane mirror, nesting pieces are provided at the left and right sides of the plane mirror, and the plane mirror and the lens housing are nestedly connected.

[0009] Preferably, a second shading pad is provided at an inner outer position of the second lens and the third lens, a third shading pad is provided at an inner outer position of the fourth lens and the fifth lens, a first shading ring is provided at a rear position of the third lens, and a second shading ring is provided at a rear position of the fifth lens.

[0010] Preferably, a gasket is provided at the rear side of the sixth lens, the light absorbing layer is provided outside the plane mirror, and the light absorbing layer is made of graphite material.

[0011] Preferably, a mounting seat is provided at the rear side of the lens housing, a clamping plate is provided at the rear side of the mounting seat, and a sliding groove is provided at the top of the mounting seat.

[0012] Preferably, a mounting plate is provided at the middle position inside the mounting seat, a dustproof plate is provided at the top position of the mounting plate, a sliding member is provided at the top position of the dustproof plate, a polarizing lens is provided at the left position inside the mounting plate, and an infrared filtering lens is provided at the right position of the mounting plate, and the polarizing lens and the infrared filtering lens are fixedly connected to the mounting plate.

[0013] Preferably, the lens housing and the mounting seat are fixedly connected, and the lens housing and the mounting seat are made of plastic material.

[0014] Compared with the prior art, the utility model provides an imaging optical lens set, which has the following beneficial effects:

[0015] 1. Through the arrangement of the plane mirror, the first shading pad, the pad ring, the nested piece, the second shading pad, the third shading pad, the first shading ring and the second shading ring, a light-absorbing layer is arranged at the top of the plane mirror to reduce the interference caused by light reflection. The function of the light-absorbing layer is to absorb light of a specific wavelength, reduce the reflection and transmission of light, thereby improving the performance and stability of the optical system, avoiding the interference of absorbed or scattered light, improving the performance and stability of the optical system, and protecting the internal lens from the influence of external light. The shading pad may be used to block scattered light from the surface of the optical element, reduce interference and improve the clarity and contrast of the optical system. The shading pad can help the optical system better adapt to different environmental conditions, such as changes in light intensity, the influence of ambient light, etc., thereby improving the stability and reliability of the system. At the same time, the shading ring supports the lens while reducing optical crosstalk. This is also a common setting used to protect the lens and reduce the interference of light between lenses.

[0016] 2. Through the arrangement of mounting base, snap-in plate, slide groove, mounting plate, dustproof plate, sliding part, polarized lens and infrared filter lens, the arrangement of mounting base, snap-in plate, slide groove and other components can ensure that the polarized lens and infrared filter lens are firmly mounted on the lens housing, avoiding movement or loosening caused by vibration or external force, and ensuring the stability of the optical elements. The arrangement of the dustproof plate can effectively prevent dust and impurities from entering the interior of the lens housing, protect the surfaces of the polarized lens and infrared filter lens from contamination and damage, and ensure the cleanliness and stability of the optical system. At the same time, the polarized lens is suitable for scenes where polarized light in the light beam needs to be screened, while the infrared filter lens is suitable for applications where specific band selection is required in the infrared spectrum. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the third shading pad in the utility model.

[0019] Figure 3 It is a structural schematic diagram of the mounting seat in the utility model.

[0020] Figure 4 It is a structural schematic diagram of the mounting plate in the utility model.

[0021] In the figure: 1. lens housing; 2. fifth lens; 3. first shading ring; 4. second shading pad; 5. second lens; 6. first shading pad; 7. plane mirror; 8. nested piece; 9. first lens; 10. third lens; 11. fourth lens; 12. third shading pad; 13. second shading ring; 14. sixth lens; 15. gasket; 16. mounting seat; 17. clamping plate; 18. slide groove; 19. sliding piece; 20. dustproof plate; 21. mounting plate; 22. infrared filter lens; 23. polarizing lens. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-4 An imaging optical lens assembly shown includes a lens housing 1;

[0024] A first lens 9 is arranged at the top position inside the lens housing 1, a second lens 5 is arranged at the rear side position of the first lens 9, a third lens 10 is arranged at the rear side position of the second lens 5, a fourth lens 11 is arranged at the rear side position of the third lens 10, a fifth lens 2 is arranged at the rear side position of the fourth lens 11, and a sixth lens 14 is arranged at the rear side position of the fifth lens 2. The lenses arranged in the array are snap-connected to the lens housing 1;

[0025] A plane mirror 7 is arranged at the top of the first lens 9 , a first light shielding pad 6 is arranged at the inner and outer positions of the first lens 9 and the second lens 5 , and a gasket 15 is arranged at the rear side of the sixth lens 14 .

[0026] A light absorbing layer is arranged at the top of the plane mirror 7 , and nesting pieces 8 are arranged at the left and right sides of the plane mirror 7 . The plane mirror 7 and the lens housing 1 are connected in a nested manner.

[0027] A second shading pad 4 is provided at the inner outer position of the second lens 5 and the third lens 10, a third shading pad 12 is provided at the inner outer position of the fourth lens 11 and the fifth lens 2, a first shading ring 3 is provided at the rear side of the third lens 10, and a second shading ring 13 is provided at the rear side of the fifth lens 2.

[0028] A gasket 15 is arranged at the rear side of the sixth lens 14. The light absorbing layer is arranged outside the plane mirror 7 and is made of graphite material.

[0029] A mounting seat 16 is disposed at the rear side of the lens housing 1 , a clamping plate 17 is disposed at the rear side of the mounting seat 16 , and a sliding groove 18 is disposed at the top of the mounting seat 16 .

[0030] A mounting plate 21 is provided at the middle position inside the mounting seat 16, a dustproof plate 20 is provided at the top position of the mounting plate 21, a sliding member 19 is provided at the top position of the dustproof plate 20, a polarizing lens 23 is provided at the left position inside the mounting plate 21, and an infrared filtering lens 22 is provided at the right position of the mounting plate 21. The polarizing lens 23 and the infrared filtering lens 22 are fixedly connected to the mounting plate 21.

[0031] The lens housing 1 and the mounting seat 16 are fixedly connected, and the lens housing 1 and the mounting seat 16 are made of plastic material.

[0032] In the present embodiment, a specific implementation step of an imaging optical lens group is to install a plane mirror 7 at the top position of a lens housing 1 and fix it on the lens housing 1 with a nesting piece 8, install a first lens 9 and a second lens 13 to a sixth lens 14 at a predetermined position, place a first shading pad 6 at the inner outer position of the first lens 9 and the second lens 5, place a second shading pad 4 at the inner outer position of the second lens 5 and the third lens 10, place a third shading pad 12 at the inner outer position of the fourth lens 11 and the fifth lens 2, place a first shading ring 3 at the rear position of the third lens 10, place a second shading ring 13 at the rear position of the fifth lens 2, place a gasket ring 1 at the rear position of the sixth lens 14, and adjust the bottom mounting plate 21 by a sliding piece 19 to ensure clear internal imaging.

[0033] like Figure 1-2 As shown, a plane mirror 7 is arranged at the top position of the first lens 9, a first shading pad 6 is arranged at the inner and outer positions of the first lens 9 and the second lens 5, a gasket 15 is arranged at the rear side of the sixth lens 14, a light absorbing layer is arranged at the top position of the plane mirror 7, nesting pieces 8 are arranged at the left and right sides of the plane mirror 7, the plane mirror 7 and the lens housing 1 are nested and connected, a second shading pad 4 is arranged at the inner and outer positions of the second lens 5 and the third lens 10, a third shading pad 12 is arranged at the inner and outer positions of the fourth lens 11 and the fifth lens 2, a first shading ring 3 is arranged at the rear side of the third lens 10, a second shading ring 13 is arranged at the rear side of the fifth lens 2, a gasket 15 is arranged at the rear side of the sixth lens 14, and the light absorbing layer is arranged outside the plane mirror 7, and the light absorbing layer is made of graphite material.

[0034] Preferably, a plane mirror 7 is arranged at the top position of the first lens 9, and a light-absorbing layer is arranged at the top position of the plane mirror 7. This arrangement may be to prevent reflection or leakage of light to ensure the accuracy and clarity of the light path. The light-absorbing layer is arranged on the outside of the plane mirror 7, which may be to avoid interference from absorbed or scattered light, thereby improving the performance and stability of the optical system and protecting the internal lens at the same time. The shading pad can block scattered light from the surface of the optical element, thereby reducing interference and improving the clarity and contrast of the optical system. The shading pad can help the optical system better adapt to different environmental conditions, such as changes in light intensity, the influence of ambient light, etc., thereby improving the stability and reliability of the system. At the same time, the shading ring supports the lens while reducing optical crosstalk.

[0035] like Figure 2-3As shown, a mounting seat 16 is provided at the rear side of the lens housing 1, a clamping plate 17 is provided at the rear side of the mounting seat 16, a slide groove 18 is provided at the top of the mounting seat 16, a mounting plate 21 is provided at the middle position inside the mounting seat 16, a dustproof plate 20 is provided at the top position of the mounting plate 21, a sliding member 19 is provided at the top position of the dustproof plate 20, a polarizing lens 23 is provided at the left side inside the mounting plate 21, an infrared filtering lens 22 is provided at the right side of the mounting plate 21, and the polarizing lens 23 and the infrared filtering lens 22 are fixedly connected to the mounting plate 21.

[0036] Preferably, the arrangement of components such as the mounting seat 16, the clamping plate 17 and the slide groove 18 can ensure that the polarized lens 23 and the infrared filter lens 22 are firmly mounted on the lens housing 1, avoiding movement or loosening due to vibration or external force, thereby ensuring the stability of the optical elements. The arrangement of the dustproof plate 20 can effectively prevent dust and impurities from entering the interior of the lens housing 1, protecting the surfaces of the polarized lens 23 and the infrared filter lens 22 from contamination and damage, thereby ensuring the cleanliness and stability of the optical system.

[0037] like Figure 1-4 As shown, the lens housing 1 and the mounting seat 16 are fixedly connected, and the lens housing 1 and the mounting seat 16 are made of plastic material.

[0038] Optionally, plastic materials are lighter than metals, so a lens housing 1 and a mounting base 16 made of plastic materials can reduce the weight of the entire optical system, making it more portable and easy to carry. Plastic materials generally have good insulating properties, which can effectively prevent the conduction of electric current, reduce the generation of static electricity, and help protect electronic components and sensors in the optical system. At the same time, plastic materials are easy to process into various shapes and structures, so that more complex and sophisticated designs can be achieved to meet the needs of different optical systems and improve the performance and functionality of the system.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An imaging optical lens assembly, comprising a lens housing (1); A first lens (9) is arranged at the top position inside the lens housing (1), a second lens (5) is arranged at the rear side of the first lens (9), a third lens (10) is arranged at the rear side of the second lens (5), a fourth lens (11) is arranged at the rear side of the third lens (10), a fifth lens (2) is arranged at the rear side of the fourth lens (11), and a sixth lens (14) is arranged at the rear side of the fifth lens (2), and the lenses arranged in the array are snap-connected to the lens housing (1); Features: A plane mirror (7) is arranged at the top of the first lens (9), a first light shielding pad (6) is arranged at the inner and outer positions of the first lens (9) and the second lens (5), and a gasket ring (15) is arranged at the rear side of the sixth lens (14).

2. An imaging optical lens assembly according to claim 1, Features: A light absorbing layer is provided at the top of the plane mirror (7), nesting pieces (8) are provided at the left and right sides of the plane mirror (7), and the plane mirror (7) and the lens housing (1) are connected in a nested manner.

3. An imaging optical lens assembly according to claim 2, Features: A second shading pad (4) is provided at an inner outer position of the second lens (5) and the third lens (10), a third shading pad (12) is provided at an inner outer position of the fourth lens (11) and the fifth lens (2), a first shading ring (3) is provided at a rear position of the third lens (10), and a second shading ring (13) is provided at a rear position of the fifth lens (2).

4. An imaging optical lens assembly according to claim 3, Features: A gasket (15) is arranged at the rear side of the sixth lens (14), and the light absorbing layer is arranged outside the plane mirror (7), and the light absorbing layer is made of graphite material.

5. The imaging optical lens assembly according to claim 1, Features: A mounting seat (16) is arranged at the rear side of the lens housing (1), a clamping plate (17) is arranged at the rear side of the mounting seat (16), and a sliding groove (18) is arranged at the top of the mounting seat (16).

6. An imaging optical lens assembly according to claim 5, Features: A mounting plate (21) is arranged at a middle position inside the mounting seat (16), a dustproof plate (20) is arranged at a top position of the mounting plate (21), a sliding member (19) is arranged at a top position of the dustproof plate (20), a polarizing lens (23) is arranged at a left position inside the mounting plate (21), an infrared filter lens (22) is arranged at a right position of the mounting plate (21), and the polarizing lens (23) and the infrared filter lens (22) are fixedly connected to the mounting plate (21).

7. The imaging optical lens assembly according to claim 1, Features: The lens housing (1) and the mounting seat (16) are fixedly connected, and the lens housing (1) and the mounting seat (16) are made of plastic material.

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