Lens barrel base insert core segmentation position setting structure

Abstract

The utility model discloses a lens cone seat insert core segmentation position setting structure, which comprises a lens cone seat, the top of the lens cone seat is fixedly connected with a top surface, the lens cone seat is arranged by adopting an integrated female die, and the inner wall of the lens cone seat is arranged to be a continuous smooth curved surface. The problems of abnormal reflection and poor glare possibly caused by the traditional insert core segmentation design are effectively avoided, the integrated female die design ensures the continuous smooth curved surface of the inner wall of the lens barrel base, reflection and scattering of light rays during passing are reduced, and therefore the imaging quality and performance stability of the lens are improved. The super black plating layer arranged on the top surface further enhances the light absorption capability of the lens, reduces unnecessary reflected light rays, effectively reduces the occurrence of a dazzle light phenomenon, and meanwhile, the top surface is in smooth transition connection with the lens barrel seat through the arc part, so that the design is attractive, light ray reflection and scattering at the joint are reduced, and the service life of the lens is prolonged. And the imaging effect of the lens is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical lens technical field, concretely is the barrel seat entrance son segmentation position setting structure. BACKGROUND

[0002] In optical lens manufacturing, the barrel seat as the core support structure of lens assembly, its design rationality directly influences the imaging quality and stability of optical system, for promoting the lens anti stray light ability, the industry generally adopts the process of plating super black coating on the top surface of the barrel seat to reduce the surface reflectivity and alleviate the glare phenomenon.

[0003] The existing barrel seat usually adopts entrance son segmentation design to realize die processing convenience and structural stability, that is, setting segmentation position at the specific position of the barrel seat, combining into shape through the split entrance son structure, after plating super black, the entrance son segmentation position is prone to abnormal phenomena such as bright reflection, which not only affects the appearance quality of the lens, but also may further cause glare, resulting in the decline of imaging quality, therefore, we need to propose the barrel seat entrance son segmentation position setting structure. UTILITY MODEL CONTENT

[0004] The utility model aims at providing the barrel seat entrance son segmentation position setting structure, through scientific and reasonable setting of the barrel seat entrance son segmentation position, adopting integrated mold design, completely abandoning the traditional entrance son segmentation mode, thereby effectively preventing the problems such as color difference, bright reflection after coating, and further alleviating the glare, to solve the problems in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] The barrel seat entrance son segmentation position setting structure, including the barrel seat, the top of the barrel seat is fixedly connected with the top surface, the barrel seat adopts integrated mold setting, and the inner wall of the barrel seat is set as a continuous smooth curved surface, the outer wall of the top surface is provided with a super black plating layer, the outer side of the top surface is provided with a circular arc part, the barrel seat and the top surface are smoothly connected through the circular arc part, the top of the barrel seat is provided with a center light hole, the outer wall of the barrel seat is fixedly connected with a ring-shaped reinforcing rib at equal intervals, and the bottom of the barrel seat is fixedly connected with a positioning seat.

[0007] Preferably, the barrel seat is integrally injection molded by high-strength aluminum alloy, and the surface roughness Ra of the inner wall of the barrel seat is less than or equal to 0.8 microns.

[0008] Preferably, the top surface is provided as a micro-arc curved surface, and the top surface surrounds the center light hole.

[0009] Preferably, the super black plating layer adopts carbon nanotube composite light-absorbing material, and the film thickness of the super black plating layer is 50-100nm.

[0010] Preferably, the curvature radius R of the arc part is 1.5-2.0mm.

[0011] Preferably, the annular reinforcing ribs are distributed equidistantly along the outer wall of the lens barrel seat at 3-6, and the interval is 1 / 5-1 / 3 of the height of the lens barrel seat.

[0012] Preferably, the positioning seat is provided with a mounting hole connected with an external device.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a lens barrel seat and a sky surface are provided with super black plating layer, and the super black plating layer is made of carbon nanotube composite light-absorbing material, and the film thickness of the super black plating layer is 50-100nm. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the structural schematic diagram of the utility model lens barrel seat and sky surface;

[0017] Figure 3 It is the structural schematic diagram of the utility model sky surface and super black plating layer;

[0018] Figure 4 It is the structural schematic diagram of the utility model before the entrance son segmentation position changes;

[0019] Figure 5 It is the structural schematic diagram of the utility model after the entrance son segmentation position changes.

[0020] In the drawing: 1, lens barrel seat;2, sky surface;3, super black plating layer;4, arc part;5, center light hole;6, annular reinforcing rib;7, positioning seat;8, mounting hole;9, entrance son segmentation part;10, female die integral part. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0023] The mirror barrel seat enters the child segmentation position setting structure, including mirror barrel seat 1, the top of mirror barrel seat 1 is fixedly connected with the sky surface 2, mirror barrel seat 1 adopts the integrated female die setting, and the inner wall of mirror barrel seat 1 is set as continuous smooth curved surface, through the mirror barrel seat 1 of integrated female die setting, effectively avoid the abnormal reflection and glare problem that traditional child segmentation design can bring, the integrated female die design ensures the continuous smooth curved surface of the inner wall of mirror barrel seat 1, reduces the reflection and scattering of light when passing, thereby improve the imaging quality and performance stability of lens;

[0024] The outer wall of the sky surface 2 is provided with a super black plating layer 3, and the outer side of the sky surface 2 is provided with a circular arc part 4. The mirror barrel seat 1 is smoothly connected with the sky surface 2 through the circular arc part 4. The super black plating layer 3 provided on the sky surface 2 further enhances the light absorption capacity of the lens, reduces unnecessary reflected light, and effectively reduces the occurrence of glare. At the same time, the sky surface 2 is smoothly connected with the mirror barrel seat 1 through the circular arc part 4. This design not only looks beautiful, but also reduces the reflection and scattering of light at the connection, further improving the imaging effect of the lens. The top of the mirror barrel seat 1 is provided with a central light hole 5. The central light hole 5 provided at the top of the mirror barrel seat 1 ensures that the light can pass smoothly and focus on the imaging plane, which is a key part of the lens system. Equidistantly fixed ring-shaped reinforcing ribs 6 are arranged on the outer wall of the mirror barrel seat 1. The ring-shaped reinforcing ribs 6 enhance the structural strength and stability of the mirror barrel seat 1, improve the anti-deformation ability and service life of the lens, and the bottom of the mirror barrel seat 1 is fixedly connected with a positioning seat 7. The positioning seat 7 enables the mirror barrel seat 1 to be accurately and stably fixed on a camera or other optical equipment, ensuring the installation precision and stability of the lens.

[0025] The mirror barrel seat 1 is made of high-strength aluminum alloy (such as 6061-T6) through integrated injection molding. The yield strength of 6061-T6 aluminum alloy is ≥240MPa, and the thermal expansion coefficient is 23.6x10⁻ 6℃, the lens working temperature range is adapted to (-20 ℃~80 ℃), the material has excellent mechanical properties and corrosion resistance, can meet the requirements of strength and stability of the lens, the integrated molding eliminates the parting line, avoids the coating defects caused by the split position in the traditional design, and the inner wall surface roughness Ra of the lens barrel seat 1 is ≤0.8 μm, the high-precision surface treatment further reduces the reflection and scattering of light in the lens barrel seat, and improves the imaging clarity of the lens;

[0026] The top surface 2 is arranged in a micro-arc shape, and the top surface 2 surrounds the center light hole 5. This design not only looks good, but also can better guide the light through the center light hole, reduce the reflection and scattering of light on the top surface 2, and at the same time, the design of the micro-arc surface can better adapt to the optical performance requirements of the lens, and improve the imaging quality of the lens;

[0027] The super black coating 3 adopts carbon nanotube composite light absorbing material, which has very high light absorbing performance and stability, can effectively absorb light, reduce reflection and scattering, and the film thickness of the super black coating 3 is 50-100 nm. The thickness range is verified by experiments: less than 50 nm, the light absorption effect is insufficient, and more than 100 nm, the coating is easy to crack due to internal stress. The micro-porous structure (porosity ≥70%) of the carbon nanotube composite material can greatly increase the light scattering path, and the light absorption efficiency is more than 99.5%. After coating, solidify in a nitrogen environment at 80 ℃ for 2 hours, so that the bonding force between the coating and the substrate is increased to ≥50 MPa (ASTM D3359 standard). The design of this thickness can not only ensure the light absorbing performance, but also avoid affecting other performances of the lens. The super black coating 3 is deposited on the outer wall of the top surface 2 by vacuum ion coating process;

[0028] The curvature radius R of the circular arc part 4 is 1.5-2.0 mm. This design can not only ensure the smooth transition between the lens barrel seat 1 and the top surface 2, but also reduce the reflection and scattering of light at the connection. The existence of the circular arc part 4 makes the whole structure more smooth, improves the overall beauty and optical performance of the lens, and the design of the circular arc part 4 makes the coating material form a gradient deposition in the curved surface area, reducing the interface reflection;

[0029] The annular reinforcing ribs 6 are distributed equidistantly along the outer wall of the lens barrel seat 1, and the interval is 1 / 5-1 / 3 of the height of the lens barrel seat. This design can not only enhance the structural strength of the lens barrel seat 1, but also avoid affecting the optical performance of the lens. The existence of the annular reinforcing ribs 6 makes the lens barrel seat 1 more solid and durable, and can withstand greater external force and vibration. The cross section of a single reinforcing rib is trapezoidal (top width 1.2-1.8 mm, height 0.2-0.5 mm), and the root is chamfered R0.1 mm to suppress crack propagation;

[0030] The positioning seat 7 is provided with a mounting hole 8 connected with external equipment, which facilitates the mounting and dismounting of the lens, improves the maintainability and replaceability of the lens, and meanwhile, the design of the positioning seat 7 ensures the stability and precision of the lens on the external equipment.

[0031] Working principle: when the light passes through the lens, it will first pass through the sky surface 2 and the lens barrel seat 1, since the lens barrel seat 1 is provided with an integrated female mold and the inner wall is a continuous smooth curved surface, the reflection and scattering of light in the lens barrel seat 1 is greatly reduced, meanwhile, the super black plating layer 3 on the sky surface 2 can absorb most of the light, further reducing reflection and scattering, after the light passes through the center light hole 5, it is further processed and focused by other optical components inside the lens, finally forming a clear image, in the whole process, the structures such as the circular arc part 4, the annular reinforcing rib 6 and the positioning seat 7 ensure the stability and precision of the lens, so that the lens can work normally and produce high-quality images.

[0032] Although the embodiments of the present application have been shown and described, it should be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A structure for setting a lens barrel seat insertion sub-division position, comprising a lens barrel seat (1), characterized in that: The top of the lens barrel seat (1) is fixedly connected with a top surface (2), the lens barrel seat (1) is provided in an integrated mode, the inner wall of the lens barrel seat (1) is provided as a continuous smooth curved surface, the outer wall of the top surface (2) is provided with a super black plating layer (3), the outer side of the top surface (2) is provided with a circular arc part (4), the lens barrel seat (1) and the top surface (2) are smoothly and transitionally connected through the circular arc part (4), the top of the lens barrel seat (1) is provided with a central light passing hole (5), the outer wall of the lens barrel seat (1) is fixedly connected with annular reinforcing ribs (6) at equal intervals, and the bottom of the lens barrel seat (1) is fixedly connected with a positioning seat (7).

2. The lens barrel sub-division bit setting structure according to claim 1, characterized by: The lens barrel seat (1) is integrally injection molded by high-strength aluminum alloy, and the surface roughness Ra of the inner wall of the lens barrel seat (1) is less than or equal to 0.8 microns.

3. The lens barrel sub-division bit setting structure according to claim 1, characterized by: The top surface (2) is provided as a micro-arc curved surface, and the top surface (2) surrounds the central light passing hole (5).

4. The lens barrel sub-division bit setting structure according to claim 1, characterized by: The super black plating layer (3) is made of carbon nanotube composite light-absorbing material, and the film thickness of the super black plating layer (3) is 50-100 nm.

5. The lens barrel sub-division bit setting structure according to claim 1, characterized by: The circular arc part (4) has a curvature radius R of 1.5-2.0 mm.

6. The lens barrel sub-division bit setting structure according to claim 1, characterized by: The annular reinforcing ribs (6) are distributed at equal intervals along the outer wall of the lens barrel seat (1) at 3-6, and the interval is 1 / 5-1 / 3 of the height of the lens barrel seat.

7. The lens barrel sub-division bit setting structure according to claim 1, characterized by: The positioning seat (7) is provided with a mounting hole (8) connected with external equipment.

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