Spacer for optical instrument lens and method for manufacturing the same

Abstract

The present invention belongs to the technical field of spacers for optical instrument lenses, and specifically to spacers for optical instrument lenses and a manufacturing method thereof, comprising an optical instrument body, a lens barrel being arranged on the surface of the optical instrument body, and a plurality of lens bodies being arranged on the inner side wall of the lens barrel. The spacers for optical instrument lenses and a manufacturing method thereof described in the present invention replace the traditional connection method using optical glue by setting a rotating snap-fit ​​connection component, and the connection stability will not be affected by temperature, which greatly guarantees the limiting stability of the lens and the spacer, and improves the stability and life of the lens of the optical instrument. At the same time, when one side is damaged, it can be quickly disassembled without having to replace all of them, thereby reducing the additional expenditure cost caused by the damage. The quick disassembly function allows researchers to quickly replace lenses or spacers of different specifications, thereby realizing flexible adjustment of the optical system.

Description

Technical Field

[0001] The present invention belongs to the technical field of spacers for optical instrument lenses, in particular to spacers for optical instrument lenses and a manufacturing method thereof. Background Art

[0002] In complex optical instruments, such as high-performance camera lenses or telescopes, multiple lenses are often combined to achieve various optical functions and correct aberrations. When multiple lenses are closely arranged, spacers are located on both sides of the lenses in order to accurately control the distance between each lens. For example, in an achromatic lens composed of a convex lens and a concave lens, spacers on both sides of the lens help adjust the relative position between the lenses to reduce chromatic aberration (the phenomenon that different colors of light focus at different points). By precisely controlling the thickness and position of the spacer, different colors of light can be focused on the same focal plane, improving the image quality.

[0003] For optical systems that correct aberrations such as astigmatism and coma, it is also necessary to set spacers on both sides of the lens. These aberrations will cause blur or deformation of the image. By adjusting the spacing between the spacers on both sides of the lens, the propagation path of the light between the lenses can be changed, thereby correcting the aberrations and allowing the light to be accurately focused on the imaging plane.

[0004] The Chinese invention patent publication number is CN112534310A. A patent discloses a spacer for an optical instrument lens. The present invention relates to a spacer for an optical instrument lens and a manufacturing method thereof. The purpose is to provide the following spacers: low price, preventing glare phenomenon, improving low absorption, chemical resistance, thickness uniformity, easy processing and production convenience, being able to cope with a variety of thicknesses and having excellent surface strength. In addition, the spacer of the present invention has the following effects: low price, preventing glare phenomenon, improving low absorption, chemical resistance, thickness uniformity, easy processing and production convenience, coping with a variety of thicknesses and having excellent surface strength.

[0005] However, in the above-mentioned technology, the connection method between the spacer and the lens frame is generally through optical glue, which is easily affected by the ambient temperature. Temperature changes will have a significant impact on the adhesive connection. Different optical glues have different thermal expansion coefficients. When the ambient temperature changes, stress may be generated between the glue layer and the lens and the spacer due to the mismatch of thermal expansion coefficients. If the stress is too large, it may cause the glue layer to crack or debond, or cause the lens to shift relative to the spacer, thereby affecting the stability and life of the lens of the optical instrument. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the optical instrument lens spacer of the present invention comprises an optical instrument body, a lens barrel is arranged on the surface of the optical instrument body, a plurality of lens bodies are arranged on the inner side wall of the lens barrel, a lens frame is connected to the outer surface of the lens body, a spacer body is arranged on both side surfaces of the lens body, and a rotating clamping connection component is arranged between the spacer body and the lens frame;

[0008] The rotating snap-fit ​​connection assembly includes a first arc-shaped slot opened on both side surfaces of the frame, a second arc-shaped slot opened on the inner side wall of the frame, the first arc-shaped slot is connected to the second arc-shaped slot, the second arc-shaped slot and the first arc-shaped slot are both opened in a circular array on both side surfaces of the frame, a plurality of snap-fit ​​columns are fixedly installed in a circular array on one side surface of the spacer body, a snap-fit ​​plate is fixedly installed on one end of the snap-fit ​​column, the snap-fit ​​column is adapted to the first arc-shaped slot, and the snap-fit ​​plates are adapted to the second arc-shaped slot and the first arc-shaped slot.

[0009] As a preferred technical solution of the present application, one side surface of the spacer body is provided with positioning holes, the number of the positioning holes is several, and both side surfaces of the frame are provided with grooves, the number of the positioning holes is the same as the grooves, and the sizes of the positioning holes and the grooves are the same.

[0010] As a preferred technical solution of the present application, a micro spring is fixedly installed on the inner bottom wall of the groove, a positioning column is fixedly installed on one end of the micro spring, the positioning column is slidably connected to the inside of the groove, the positioning column is adapted to the positioning hole, and a micro bolt is threadedly connected to the surface of the positioning hole, and the size of the micro bolt is smaller than the positioning hole.

[0011] As a preferred technical solution of the present application, the spacer body includes spacer layers respectively arranged on both sides, wherein a surface of one side of the spacer layer is provided with an annular groove, a magnetic ring A is fixedly installed on the inner bottom wall of the annular groove, and a surface of the magnetic ring A is provided with a plurality of anti-slip grooves.

[0012] As a preferred technical solution of the present application, a magnetic ring B is fixedly installed on the side surface of the spacing layer on the other side, and anti-skid bumps are fixedly installed in a circular array on the side surface of the magnetic ring B, and the anti-skid bumps are adapted to the anti-skid grooves.

[0013] As a preferred technical solution of the present application, a first placement groove is opened on the side surface of the two spacer layers, a second placement groove is opened on the other side of the first placement groove, the size of the second placement groove is larger than the first placement groove, and annular reinforcement ribs are placed inside the first placement groove and the second placement groove.

[0014] As a preferred technical solution of the present application, a connecting groove is opened between the first placement groove and the second placement groove, the number of the connecting grooves is several, and a reinforcing column is placed inside the connecting groove, and the reinforcing column is fixedly installed between the annular reinforcing ribs on both sides.

[0015] As a preferred technical solution of the present application, a plurality of honeycomb holes are opened through the surfaces of the two spacer layers, the honeycomb holes are arranged in a hexagonal shape, a polymer damping component is arranged inside each of the honeycomb holes, and a plurality of heat dissipation holes are opened on the surface of the polymer damping component.

[0016] As a preferred technical solution of the present application, an annular concave mirror is arranged on the side surface of the spacer layer, an annular convex mirror is arranged on the inner side of the annular concave mirror, and the annular concave mirror and the annular convex mirror are both fixedly mounted on the outer surface of the spacer layer on one side.

[0017] A method for manufacturing a spacer for an optical instrument lens, the method using the above-mentioned spacer for an optical instrument lens, comprising the following steps:

[0018] S1. Material selection and pretreatment: Select the spacer material according to the specific requirements of the optical instrument, taking into account the optical properties, mechanical properties, and chemical stability factors;

[0019] Titanium alloy material is selected as the base body of the spacer. Before manufacturing, the titanium alloy material needs to be cleaned and degreased to ensure that there are no impurities on the surface for subsequent processing and surface treatment;

[0020] S2. Processing and forming of spacers: Processing operations are performed on titanium alloy materials. Ultra-precision lathes are used for rough processing to process the raw materials into blanks close to the final shape. Appropriate cutting parameters are set, with cutting speeds of 50-100m / min, feed rates of 0.05-0.15mm / r, and cutting depths of 0.1-0.5mm to ensure a balance between processing efficiency and surface quality. Ultra-precision milling machines are then used to shape the blanks to produce annular, polygonal or special-shaped spacer profiles, thereby producing the final spacer body. Ultra-precision grinders are then used for precision grinding to achieve the required thickness and surface finish. During grinding, the particle size of the grinding wheel can be selected according to the surface roughness requirements. For example, for surface roughness requirements of Ra 0.1-0.2μm, 800-1200 mesh grinding wheels are selected. The grinding depth is precisely controlled, with each grinding depth of 0.005- 0.02mm to control the thickness accuracy of the spacer and control the thickness deviation within the range of ±5μm;

[0021] S3. Spacer surface treatment: Then, an anti-reflective coating is prepared on the surface of the produced spacer. In order to reduce glare, a microstructure is manufactured by laser processing technology. The laser beam is used to perform micro-nano processing on the surface of the spacer. The microstructure is manufactured on the metal surface by precisely controlling the laser power, pulse frequency, scanning speed and other parameters. Then, the surface is hardened by ion implantation technology to improve the surface strength of the spacer. Silicone coating or fluorocarbon coating is applied on the surface of the spacer to improve the hygroscopicity of the spacer. At the same time, an antistatic coating is applied on the surface of the spacer. A layer of nano-scale indium tin oxide (ITO) coating can be applied to maintain good optical properties and effectively resist static electricity.

[0022] S4, deburring and finishing: Then the surface of the spacer needs to be deburred and finished, using an electrochemical deburring method, and using an ultra-precision grinder or polishing equipment to perform final finishing on the spacer to further improve the surface finish and dimensional accuracy, and then install each required part to the specified position to complete the manufacture of the spacer. In the above steps, automated processing technology is used to optimize the manufacturing process and reduce manufacturing costs;

[0023] S5. Spacer quality inspection: Perform quality inspection on spacers. Use a spectrophotometer to detect the transmittance and reflectance of the spacers to ensure that they meet the requirements of optical instruments within the target wavelength range. Perform mechanical strength tests, tensile tests, bending tests, etc. on the spacers to ensure that they can withstand various stresses in optical instruments. According to the chemical substances that the optical instrument may contact, place the spacer samples in different chemical environments. After a certain period of time, check the appearance, size and performance changes of the spacers to ensure that they have good drug resistance.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The optical instrument lens spacer and its manufacturing method described in the present invention, through the setting of the rotating snap connection component, the manufactured spacer is first attached to the side surface of the lens body and the frame, so that the snap-fitting column and the snap-fitting plate on the side of the spacer are inserted into the side surface of the frame, and then rotated. When it is rotated to the point where it cannot rotate, the micro spring drives the positioning column to insert into the groove on the surface of the spacer, so that the spacer is quickly and stably limited to the side surface of the frame and the lens, replacing the traditional connection method using optical glue. The connection stability will not be affected by temperature, which greatly guarantees the limiting stability of the lens and the spacer, and improves the stability and life of the lens of the optical instrument. At the same time, when one side is damaged, it can be quickly disassembled without replacing all of them, thereby reducing the additional expenditure cost caused by the damage. The quick disassembly function allows researchers to quickly replace lenses or spacers of different specifications, and realize flexible adjustment of the optical system;

[0026] 2. The optical instrument lens spacer and the manufacturing method thereof of the present invention are low-priced, prevent glare, improve low absorption, chemical resistance, thickness uniformity, easy processing and production convenience, and can be used in a variety of thicknesses and have excellent surface strength. At the same time, the manufacturing process has an anti-static effect, which reduces the electrostatic adsorption of dust, thereby interfering with electronic equipment or affecting the propagation path of light, thereby improving the performance of optical instruments in use;

[0027] 3. The spacer for optical instrument lens and the manufacturing method thereof described in the invention, through the honeycomb holes, polymer damping parts and heat dissipation holes, the honeycomb hole structure can change the reflection mode of light on the surface of the spacer, reduce the generation of mirror reflection, thereby reducing glare and improving the imaging quality of the optical instrument, and at the same time not only reduces the weight but also improves the overall structural stability of the spacer. The polymer damping parts can effectively absorb vibration energy. When the optical instrument is subjected to an unexpected external force impact, the impact damage to the spacer and adjacent optical elements can be reduced. The heat dissipation holes can improve the heat dissipation efficiency of the polymer damping parts, avoid excessive internal temperature, and thus ensure the normal operation of the optical instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 is a stereogram of the present invention;

[0030] Figure 2 It is a front view of the interior of the lens barrel of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the lens body and the spacer body in the present invention;

[0032] Figure 4 The present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0033] Figure 5 It is a partial exploded structural schematic diagram of the rotary engaging connection assembly in the present invention;

[0034] Figure 6 It is a structural schematic diagram of the rotary engaging connection assembly and the spacer body in the present invention;

[0035] Figure 7 is a schematic diagram of the structure of the spacer body in the present invention when viewed from above;

[0036] Figure 8 is a schematic diagram of the internal structure of the spacer body in the present invention;

[0037] Fig. 9 The present invention Figure 8 A schematic diagram of the enlarged structure at B in the middle;

[0038] Fig.10 It is a schematic flow chart of the method for manufacturing the spacer in the present invention.

[0039] In the figure:

[0040] 1. Optical instrument body; 2. Lens barrel; 3. Lens body; 4. Lens frame;

[0041] 5. Spacer body; 501. Spacer layer; 502. Annular slot; 503. Magnetic ring A; 504. Magnetic ring B; 505. Anti-skid bump;

[0042] 6. Rotary engaging connection assembly; 601. First arc-shaped engaging groove; 602. Second arc-shaped engaging groove; 603. Engaging column; 604. Engaging plate; 605. Positioning hole; 606. Micro spring; 607. Positioning column; 608. Micro bolt;

[0043] 7. First placement groove; 8. Second placement groove; 9. Annular reinforcement rib; 10. Reinforcement column; 11. Honeycomb hole; 12. Polymer damping element; 13. Heat dissipation hole; 14. Annular concave mirror; 15. Annular convex mirror. DETAILED DESCRIPTION

[0044] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0045] Embodiment 1: Figures 1 to 6 As shown, it comprises an optical instrument body 1, a lens barrel 2 is arranged on the surface of the optical instrument body 1, a plurality of lens bodies 3 are arranged on the inner side wall of the lens barrel 2, a lens frame 4 is connected to the outer surface of the lens body 3, a spacer body 5 is arranged on both side surfaces of the lens body 3, and a rotating clamping connection assembly 6 is arranged between the spacer body 5 and the lens frame 4;

[0046] The rotating snap-fit ​​connection assembly 6 includes a first arc-shaped slot 601 provided on the two side surfaces of the frame 4, a second arc-shaped slot 602 provided on the inner side wall of the frame 4, the first arc-shaped slot 601 is connected to the second arc-shaped slot 602, the second arc-shaped slot 602 and the first arc-shaped slot 601 are both provided in a circular array on the two side surfaces of the frame 4, a plurality of snap-fit ​​columns 603 are fixedly installed in a circular array on one side surface of the spacer body 5, a snap-fit ​​plate 604 is fixedly installed at one end of the snap-fit ​​column 603, the snap-fit ​​column 603 is adapted to the first arc-shaped slot 601, and the snap-fit ​​plate 604 is both adapted to the second arc-shaped slot 602 and the first arc-shaped slot The card slot 601 is adapted, and a positioning hole 605 is provided on one side surface of the spacer body 5, and the number of the positioning holes 605 is several. Grooves are provided on both side surfaces of the frame 4, and the number of the positioning holes 605 is the same as the grooves. The size of the positioning holes 605 is the same as that of the grooves. A micro spring 606 is fixedly installed on the inner bottom wall of the groove, and a positioning column 607 is fixedly installed on one end of the micro spring 606. The positioning column 607 is slidably connected to the inside of the groove. The positioning column 607 is adapted to the positioning hole 605, and a micro bolt 608 is threadedly connected to the surface of the positioning hole 605, and the size of the micro bolt 608 is smaller than the positioning hole 605.

[0047] In this embodiment: when installation is required, the spacer body 5 is first pressed against the side surfaces of the lens body 3 and the frame 4, and the micro spring 606 and the positioning column 607 inside the groove on the side surface of the frame 4 are squeezed so that the positioning column 607 is inside the groove. At the same time, the engaging column 603 and the engaging plate 604 on the side surface of the spacer 5 are inserted into the first arc-shaped slot 601 and the second arc-shaped slot 602. Then, the spacer body 5 is rotated to drive the engaging column 603 and the engaging plate 604 to rotate, so that the engaging column 603 and the engaging plate 604 slide inside the first arc-shaped slot 601 and the second arc-shaped slot 602. When the engaging plate 604 rotates to one end of the inner side wall of the second arc-shaped slot 602, it cannot rotate. At this time, the positioning hole 605 coincides with the groove, and then the positioning column 607 is driven by the micro spring 606 to perform a reset movement. The positioning column 607 is inserted into the positioning hole 605, so that the spacer body 5 cannot rotate. When disassembly is required, the micro bolt 608 is rotated by a tool, and the micro bolt 608 rotates and moves to squeeze the internal movement of the internal positioning column 607 groove, so that the positioning column 607 is completely inside the groove, and then the spacer body 5 is rotated in the opposite direction, so that the spacer body 5 and the lens body 3 and the frame 4 can be disassembled and separated, replacing the traditional connection method using optical glue. The connection stability will not be affected by temperature, which greatly guarantees the limiting stability of the lens and the spacer. At the same time, when one side is damaged, it can be quickly disassembled without the need to replace all of them, thereby reducing the additional expenditure cost caused by damage. The quick disassembly function allows researchers to quickly replace lenses or spacers of different specifications to achieve flexible adjustment of the optical system.

[0048] Embodiment 2:

[0049] like Figure 5 and Figure 6 As shown, the spacer body 5 includes spacer layers 501 respectively arranged on both sides, wherein a side surface of the spacer layer 501 on one side is provided with an annular groove 502, a magnetic ring A503 is fixedly installed on the inner bottom wall of the annular groove 502, and a plurality of anti-skid grooves are opened on the surface of the magnetic ring A503, and a magnetic ring B504 is fixedly installed on the side surface of the spacer layer 501 on the other side, and anti-skid protrusions 505 are fixedly installed on the side surface of the magnetic ring B504 in an annular array, and the anti-skid protrusions 505 are adapted to the anti-skid grooves.

[0050] In this embodiment: a complete spacer body 5 is formed by the spacer layers 501 on both sides, wherein the spacer layer 501 on one side connects the magnetic ring B504 and the anti-skid protrusions 505 on the surface with the magnetic ring A503 and the anti-skid grooves on the surface, and the magnetic rings B504 and the magnetic rings A503 on both sides are attracted and connected to each other by magnetic force, and the anti-skid protrusions 505 are stuck in the anti-skid grooves to prevent the spacer layers 501 on both sides from rotating, thereby improving the stability of the connection of the spacer body 5.

[0051] Embodiment three:

[0052] like Figures 7 to 9 As shown, a first placement groove 7 is provided on the side surface of the two spacer layers 501, a second placement groove 8 is provided on the other side of the first placement groove 7, the size of the second placement groove 8 is larger than the first placement groove 7, annular reinforcement ribs 9 are placed inside the first placement groove 7 and the second placement groove 8, a connecting groove is provided between the first placement groove 7 and the second placement groove 8, the number of the connecting grooves is several, a reinforcement column 10 is placed inside the connecting groove, and the reinforcement column 10 is fixedly installed between the annular reinforcement ribs 9 on both sides.

[0053] In this embodiment: during the manufacturing process, the annular reinforcement ribs 9 can be placed inside the first placement groove 7 and the second placement groove 8, and the reinforcement column 10 can be placed inside the connecting groove. The annular reinforcement ribs 9 and the reinforcement column 10 can improve the compressive resistance of the spacer, and the pressure borne by the instrument when it is vibrated or collided. The annular reinforcement ribs form a frame-like structure inside the spacer, which effectively shares the external pressure and prevents the spacer from deformation or damage.

[0054] Embodiment three:

[0055] like Figures 1 to 9 As shown, a plurality of honeycomb holes 11 are formed through the surfaces of the two spacer layers 501 . The honeycomb holes 11 are arranged in a hexagonal shape. A polymer damping member 12 is arranged inside each honeycomb hole 11 . A plurality of heat dissipation holes 13 are formed on the surface of the polymer damping member 12 .

[0056] In this embodiment: the surface of the spacer 501 is provided with a plurality of honeycomb holes 11, and the honeycomb hole structure of the honeycomb holes 11 can change the reflection mode of light on the surface of the spacer. When light is irradiated onto the surface of the spacer, the presence of the honeycomb holes causes the light to be reflected and refracted multiple times between the hole walls. Compared with a smooth surface, this complex light propagation path can effectively disperse the reflected light, reduce the generation of specular reflection, thereby reducing the glare phenomenon and improving the imaging quality of the optical instrument. The polymer damping element 12 can effectively absorb vibration energy. When the optical instrument is subjected to an unexpected external force impact, the impact damage to the spacer and adjacent optical elements can be reduced. The heat dissipation holes 13 can improve the heat dissipation efficiency of the polymer damping element, avoid excessive internal temperature, and thus ensure the normal operation of the optical instrument.

[0057] Embodiment 4:

[0058] like Figure 7 As shown, an annular concave mirror 14 is disposed on the side surface of the spacer layer 501 , an annular convex mirror 15 is disposed on the inner side of the annular concave mirror 14 , and both the annular concave mirror 14 and the annular convex mirror 15 are fixedly mounted on the outer surface of the spacer layer 501 on one side.

[0059] In this embodiment: the setting of the annular convex mirror 15 and the annular concave mirror 14, the combined setting of the annular concave mirror and the annular convex mirror can be used to correct aberrations, and their different refractive effects on light can be used to compensate for aberrations. In a multi-lens optical system, the annular concave mirror and the annular convex mirror on the spacer can work together with other lenses to reduce the imaging blur caused by spherical aberration and make the light more accurately focused on the imaging plane.

[0060] A method for manufacturing a spacer for an optical instrument lens, the method using the above-mentioned spacer for an optical instrument lens, comprising the following steps

[0061] S1. Material selection and pretreatment: Select the spacer material according to the specific requirements of the optical instrument, taking into account the optical properties, mechanical properties, and chemical stability factors;

[0062] Titanium alloy material is selected as the base body of the spacer. Before manufacturing, the titanium alloy material needs to be cleaned and degreased to ensure that there are no impurities on the surface for subsequent processing and surface treatment;

[0063] S2. Processing and forming of spacers: Processing operations are performed on titanium alloy materials. Ultra-precision lathes are used for rough processing to process the raw materials into blanks close to the final shape. Appropriate cutting parameters are set, with cutting speeds of 50-100m / min, feed rates of 0.05-0.15mm / r, and cutting depths of 0.1-0.5mm to ensure a balance between processing efficiency and surface quality. Ultra-precision milling machines are then used to shape the blanks to produce annular, polygonal or special-shaped spacer profiles, thereby producing the final spacer body. Ultra-precision grinders are then used for precision grinding to achieve the required thickness and surface finish. During grinding, the particle size of the grinding wheel can be selected according to the surface roughness requirements. For example, for surface roughness requirements of Ra 0.1-0.2μm, 800-1200 mesh grinding wheels are selected. The grinding depth is precisely controlled, with each grinding depth of 0.005- 0.02mm to control the thickness accuracy of the spacer and control the thickness deviation within the range of ±5μm;

[0064] S3. Spacer surface treatment: Then, an anti-reflective coating is prepared on the surface of the produced spacer. In order to reduce glare, a microstructure is manufactured by laser processing technology. The laser beam is used to perform micro-nano processing on the surface of the spacer. The microstructure is manufactured on the metal surface by precisely controlling the laser power, pulse frequency, scanning speed and other parameters. Then, the surface is hardened by ion implantation technology to improve the surface strength of the spacer. Silicone coating or fluorocarbon coating is applied on the surface of the spacer to improve the hygroscopicity of the spacer. At the same time, an antistatic coating is applied on the surface of the spacer. A layer of nano-scale indium tin oxide (ITO) coating is applied to maintain good optical properties and effectively resist static electricity.

[0065] S4, deburring and finishing: Then the surface of the spacer needs to be deburred and finished, using an electrochemical deburring method, and using an ultra-precision grinder or polishing equipment to perform final finishing on the spacer to further improve the surface finish and dimensional accuracy, and then install each required part to the specified position to complete the manufacture of the spacer. In the above steps, automated processing technology is used to optimize the manufacturing process and reduce manufacturing costs;

[0066] S5. Spacer quality inspection: Perform quality inspection on spacers. Use a spectrophotometer to detect the transmittance and reflectance of the spacers to ensure that they meet the requirements of optical instruments within the target wavelength range. Perform mechanical strength tests, tensile tests, and bending tests on spacers to ensure that they can withstand various stresses in optical instruments. Depending on the chemical substances that the optical instrument may be exposed to, place spacer samples in different chemical environments. After a certain period of time, check the appearance, size, and performance changes of the spacers to ensure that they have good drug resistance.

[0067] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A spacer for an optical instrument lens, characterized in that: The optical instrument comprises an optical instrument body (1), a lens barrel (2) being arranged on the surface of the optical instrument body (1), a plurality of lens bodies (3) being arranged on the inner side wall of the lens barrel (2), the outer surface of the lens body (3) being connected to a lens frame (4), a spacer body (5) being arranged on both side surfaces of the lens body (3), and a rotatable snap-fit ​​connection assembly (6) being arranged between the spacer body (5) and the lens frame (4); The rotating snap-fit ​​connection assembly (6) comprises a first arc-shaped slot (601) provided on the two side surfaces of the lens frame (4); a second arc-shaped slot (602) is provided on the inner side wall of the lens frame (4); the first arc-shaped slot (601) is connected to the second arc-shaped slot (602); the second arc-shaped slot (602) and the first arc-shaped slot (601) are both provided in an annular array on the two side surfaces of the lens frame (4); a plurality of snap-fitting columns (603) are fixedly mounted in an annular array on one side surface of the spacer body (5); a snap-fitting plate (604) is fixedly mounted on one end of the snap-fitting column (603); the snap-fitting column (603) is matched with the first arc-shaped slot (601); and the snap-fitting plate (604) is matched with the second arc-shaped slot (602) and the first arc-shaped slot (601); A positioning hole (605) is provided on one side surface of the spacer body (5), and the number of the positioning holes (605) is a plurality; grooves are provided on both side surfaces of the mirror frame (4), and the number of the positioning holes (605) is the same as the number of the grooves; and the size of the positioning holes (605) and the grooves is the same; A micro spring (606) is fixedly mounted on the inner bottom wall of the groove, a positioning column (607) is fixedly mounted on one end of the micro spring (606), the positioning column (607) is slidably connected to the inside of the groove, the positioning column (607) is adapted to the positioning hole (605), a micro bolt (608) is threadedly connected to the surface of the positioning hole (605), and the size of the micro bolt (608) is smaller than the positioning hole (605).

2. The optical instrument lens spacer according to claim 1, characterized in that: The spacer body (5) comprises spacer layers (501) respectively arranged on two sides, wherein a surface of one side of the spacer layer (501) is provided with an annular groove (502), a magnetic ring A (503) is fixedly mounted on the inner bottom wall of the annular groove (502), and a surface of the magnetic ring A (503) is provided with a plurality of anti-slip grooves.

3. The optical instrument lens spacer according to claim 2, characterized in that: A magnetic ring B (504) is fixedly mounted on the side surface of the spacing layer (501) on the other side, and anti-skid protrusions (505) are fixedly mounted in an annular array on the side surface of the magnetic ring B (504), and the anti-skid protrusions (505) are matched with the anti-skid grooves.

4. The optical instrument lens spacer according to claim 3, characterized in that: A first placement groove (7) is provided on the side surfaces of the two spacer layers (501), a second placement groove (8) is provided on the other side of the first placement groove (7), the size of the second placement groove (8) is larger than the first placement groove (7), and annular reinforcing ribs (9) are provided inside the first placement groove (7) and the second placement groove (8).

5. The optical instrument lens spacer according to claim 4, characterized in that: A connecting groove is provided between the first placement groove (7) and the second placement groove (8), the number of the connecting grooves being several, a reinforcing column (10) being placed inside the connecting groove, and the reinforcing column (10) being fixedly mounted between the annular reinforcing ribs (9) on both sides.

6. The optical instrument lens spacer according to claim 5, characterized in that: A plurality of honeycomb holes (11) are provided through the surfaces of the two spacer layers (501), the honeycomb holes (11) are arranged in a hexagonal shape, a polymer damping component (12) is arranged inside each of the honeycomb holes (11), and a plurality of heat dissipation holes (13) are provided on the surface of the polymer damping component (12).

7. The optical instrument lens spacer according to claim 6, characterized in that: An annular concave mirror (14) is provided on the side surface of the spacer layer (501), an annular convex mirror (15) is provided on the inner side of the annular concave mirror (14), and the annular concave mirror (14) and the annular convex mirror (15) are both fixedly mounted on the outer surface of the spacer layer (501) on one side.

8. A method for manufacturing a spacer for an optical instrument lens, the method using the spacer for an optical instrument lens according to claim 7, characterized in that: The following steps are involved: S1. Material selection and pretreatment: Select the spacer material according to the specific requirements of the optical instrument, taking into account the optical properties, mechanical properties, and chemical stability factors; Titanium alloy material is selected as the base body of the spacer. Before manufacturing, the titanium alloy material needs to be cleaned and degreased to ensure that there are no impurities on the surface for subsequent processing and surface treatment; S2. Processing and forming of spacers: Processing operations are performed on titanium alloy materials. Ultra-precision lathes are used for rough processing to process the raw materials into blanks close to the final shape. Appropriate cutting parameters are set, with cutting speeds of 50-100m / min, feed rates of 0.05-0.15mm / r, and cutting depths of 0.1-0.5mm to ensure a balance between processing efficiency and surface quality. Ultra-precision milling machines are then used to shape the blanks to produce annular, polygonal or special-shaped spacer profiles, thereby producing the final spacer body. Ultra-precision grinders are then used for precision grinding to achieve the required thickness and surface finish. During grinding, the particle size of the grinding wheel can be selected according to the surface roughness requirements. For surface roughness requirements of Ra 0.1-0.2μm, 800-1200 mesh grinding wheels are selected. The grinding depth is precisely controlled, with each grinding depth of 0.005- 0.02mm to control the thickness accuracy of the spacer and control the thickness deviation within the range of ±5μm; S3. Spacer surface treatment: Then, an anti-reflective coating is prepared on the surface of the produced spacer. In order to reduce glare, a microstructure is manufactured by laser processing technology. The laser beam is used to perform micro-nano processing on the surface of the spacer. The microstructure is manufactured on the metal surface by precisely controlling the laser power, pulse frequency, scanning speed and other parameters. Then, the surface is hardened by ion implantation technology to improve the surface strength of the spacer. Silicone coating or fluorocarbon coating is applied on the surface of the spacer to improve the hygroscopicity of the spacer. At the same time, an antistatic coating is applied on the surface of the spacer. A layer of nano-scale indium tin oxide (ITO) coating is applied to maintain good optical properties and effectively resist static electricity. S4, deburring and finishing: Then the surface of the spacer needs to be deburred and finished, using an electrochemical deburring method, and using an ultra-precision grinder or polishing equipment to perform final finishing on the spacer to further improve the surface finish and dimensional accuracy, and then install each required part to the specified position to complete the manufacture of the spacer. In the above steps, automated processing technology is used to optimize the manufacturing process and reduce manufacturing costs; S5. Spacer quality inspection: Perform quality inspection on spacers. Use a spectrophotometer to detect the transmittance and reflectance of the spacers to ensure that they meet the requirements of optical instruments within the target wavelength range. Perform mechanical strength tests, tensile tests, and bending tests on spacers to ensure that they can withstand various stresses in optical instruments. Depending on the chemical substances that the optical instrument may be exposed to, place spacer samples in different chemical environments. After a certain period of time, check the appearance, size, and performance changes of the spacers to ensure that they have good drug resistance.

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