A shadow elimination diffusion film preparation system and process

Abstract

This invention discloses an anti-ghosting and blurring film preparation system, comprising: an operating table; a molding mechanism for extruding and shaping lenses; a cold processing mechanism for processing the surface and shape of the shaped lenses to improve their hardness and strength; an etching mechanism for etching the surface of the shaped lenses; a cleaning mechanism for cleaning the etched lenses; a coating mechanism for coating multiple layers of broadband ultra-low reflective films on the lens surface; and a cutting mechanism for cutting the lenses to the required size. This invention applies surface etching technology to concave and convex spherical lenses, which can eliminate ghosting and improve image quality and clarity. Combining the ultra-wideband low-reflection film with the etched layer to create an anti-ghosting and blurring layer can eliminate ghosting problems and save product costs compared to traditional methods.

Description

Technical Field

[0001] This invention relates to the field of hardware parts processing equipment technology, and in particular to an anti-shadow dispersion film preparation system and process. Background Technology

[0002] When a lens contains multiple lenses, due to the residual reflection between the lenses and the mirror surface, that is, the reflective properties of the glass concave and convex lenses due to their own spherical mirror surface, the lens assembly will result in mirror and ghosting phenomena, which will reduce visual clarity and resolution.

[0003] The current method for reducing ghosting in lenses is to reduce residual reflections between multiple aspherical lenses by bonding them together. The process is as follows: lens molding → cold working → ultrasonic cleaning → AR coating → bonding → cutting → assembly → finished product. This process is long, inefficient, and has high processing costs. Summary of the Invention

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: the current anti-reflection process used in lenses is long, inefficient, and costly. Therefore, this invention proposes an anti-reflection diffusion film preparation system and process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ablation and dispersion thin film preparation system, comprising:

[0007] Control panel;

[0008] A molding mechanism, the molding mechanism being used for extruding and forming lenses;

[0009] A cold processing mechanism is used to process the surface and shape of the molded lens to improve the hardness and strength of the molded lens;

[0010] An etching mechanism, which is used to etch the surface of a shaped lens;

[0011] A cleaning mechanism for cleaning lenses after etching.

[0012] A coating mechanism for depositing a multilayer broadband ultra-low reflection film on the surface of a lens;

[0013] A cutting mechanism for cutting lenses to the required size.

[0014] A process for preparing an anti-aliasing and diffusion-reducing thin film, comprising the following steps:

[0015] S1. The lens is extruded and shaped using a molding mechanism;

[0016] S2. Take out the formed lens and process it again through the cold processing mechanism to remove excess burrs on its surface or change its shape.

[0017] S3. After the lens is placed on the operating table and fixed, its surface is etched by the etching mechanism to create uniformly sized pits to form particles with a particle diameter of approximately 0.01um-3.0um, forming a dispersion layer.

[0018] S4. Place the etched lens into the ultrasonic cleaner in the cleaning mechanism and clean the lens using ultrasonic waves.

[0019] S5. Using the vacuum coating machine in the coating mechanism, AR anti-reflection film and broadband ultra-low reflection film are coated on the surface of the diffuse layer to achieve the effect of diffuse reflection and low reflection.

[0020] S6. Fix the lens on the operating table again, and then cut the lens into the required size using the cutting mechanism;

[0021] S7. Assemble the lenses to obtain the finished product.

[0022] Preferably, the operating table in the above preparation process includes a table body, and a mounting groove is opened horizontally on the upper surface of the table body. A first threaded rod with opposite thread directions on the left and right sides is horizontally rotatably installed in the mounting groove. A slider is threaded on both sides of the first threaded rod. A clamping assembly is fixedly installed at the top of the slider. One end of the first threaded rod passes through the table body and is fixedly installed with an adjusting wheel.

[0023] Preferably, the clamping assembly includes a U-shaped positioning plate fixedly installed on the top of the slider. The slider has an installation cavity. The surface of the positioning plate has a vertical opening communicating with the installation cavity. A rotating rod is horizontally rotatably installed in the installation cavity. A first gear is fixedly sleeved on the rotating rod. Two first rack rods, both meshing with the first gear, are horizontally slidably installed in the installation cavity through a sliding component. A stop plate and a moving plate are fixedly installed on the surfaces of the two first rack rods respectively through a connecting rod. The surface of the moving plate is provided with multiple sets of auxiliary fixing components. The two rotating rods are controlled to rotate together by a transmission component.

[0024] Preferably, the auxiliary fixing component includes a connecting rod fixedly installed on the surface of the movable plate and a roller installed at one end of the connecting rod, and the surface of the abutment plate has a plurality of through holes for the plurality of rollers to pass through.

[0025] Preferably, the sliding component includes multiple sliding rods that are respectively fixedly installed on the left and right side walls of the two first rack rods. The left and right walls of the mounting cavity are horizontally provided with multiple sliding grooves, and one end of each of the multiple sliding rods is slidably disposed in the multiple sliding grooves.

[0026] Preferably, the transmission assembly includes a second threaded rod, a slide plate threaded onto the second threaded rod, two second gears, and two second rack rods. A fixing plate is fixedly installed on one side of the platform. The second threaded rod is vertically rotatably installed on the upper surface of the fixing plate. A sliding opening communicating with the mounting groove is horizontally opened on one side wall of the platform. One end of each of the two rotating rods extends out of the sliding opening. The two second gears are respectively fixedly sleeved on the ends of the two rotating rods extending out of the sliding opening. The two second rack rods are respectively meshed with the two second gears, and support rods are fixedly installed at their bottom ends. Two limiting grooves are horizontally opened on the upper surface of the slide plate. The bottom ends of the two support rods are horizontally slidably arranged in the two limiting grooves.

[0027] Preferably, an L-shaped mounting plate is rotatably mounted on one end of the rotating rod that protrudes from the sliding opening. A limiting opening is vertically opened on the side of the mounting plate near the second gear. A limiting block is fixedly mounted on the surface of the second rack rod, and the two limiting blocks are slidably configured in the two limiting openings respectively.

[0028] Preferably, an anti-slip layer is adhered to the side of each of the two abutments that are close to each other, and the anti-slip layer is made of rubber.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. Applying surface etching technology to concave and convex spherical lenses can eliminate ghosting caused by specular reflection in spherical lenses due to the combination of multiple lenses, thereby improving image quality and clarity.

[0031] 2. An anti-ghosting layer is made by combining an ultra-wideband low-reflection film with an etched layer and applying it to an optical imaging lens. This removes stray light from the lens surface, improves the pixel resolution of the entire lens, and makes its surface achieve diffuse reflection and low reflection, thereby eliminating ghosting problems caused by mirror surface and multiple reflections.

[0032] 3. Compared with traditional processes, this process simplifies the process flow, improves the yield of finished products, and eliminates gluing, which greatly reduces the number of lenses in the lens and significantly saves product costs.

[0033] 4. The operating table can clamp and position lenses of any size, which is convenient and quick. The lenses that can be positioned are no longer limited to a certain size, which improves the practicality of the device. If it is necessary to move the position of the lens during processing, the lens can be moved without completely releasing the clamping and fixing of the lens. This avoids spending a long time repositioning the lens after moving it, and reduces the workload of the staff. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the system structure of an anti-reflection and dispersion thin film preparation system proposed in this invention;

[0035] Figure 2 This is a schematic diagram of the process flow for preparing an anti-reflection and dispersion thin film according to the present invention.

[0036] Figure 3 A schematic diagram comparing the reflectivity before and after applying an AR coating to a lens;

[0037] Figure 4 This is a frontal three-dimensional structural diagram of the operating table in the anti-reflection and dispersion film preparation process proposed in this invention.

[0038] Figure 5 This is a top-view three-dimensional structural diagram of the operating table in the anti-reflection and dispersion film preparation process proposed in this invention;

[0039] Figure 6 This is a partial three-dimensional structural diagram of the transmission component inside the operating table in a shadow-reducing and dispersion film preparation process proposed in this invention.

[0040] Figure 7 for Figure 4 Enlarged structural diagram at point A in the middle;

[0041] Figure 8 for Figure 4 Enlarged structural diagram at point B;

[0042] Figure 9 for Figure 5 Enlarged structural diagram at point C;

[0043] Figure 10 for Figure 6 Enlarged structural diagram at point D.

[0044] In the diagram: 1. Body, 2. Mounting groove, 3. First threaded rod, 4. Slider, 5. Positioning plate, 6. Mounting cavity, 7. Rotating rod, 8. First gear, 9. First rack rod, 10. Support plate, 11. Moving plate, 12. Connecting rod, 13. Roller, 14. Through hole, 15. Sliding rod, 16. Slide groove, 17. Second threaded rod, 18. Slide plate, 19. Second gear, 20. Second rack rod, 21. Slide opening, 22. Support rod, 23. Limiting groove, 24. Mounting plate, 25. Limiting opening, 26. Limiting block. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0046] Reference Figure 1-10 An ablation and dispersion thin film preparation system, comprising:

[0047] Control panel;

[0048] A molding mechanism, the molding mechanism being used for extruding and forming lenses;

[0049] A cold processing mechanism is used to process the surface and shape of the molded lens to improve the hardness and strength of the molded lens;

[0050] An etching mechanism, which is used to etch the surface of a shaped lens;

[0051] A cleaning mechanism for cleaning lenses after etching.

[0052] A coating mechanism for depositing a multilayer broadband ultra-low reflection film on the surface of a lens;

[0053] A cutting mechanism for cutting lenses to the required size.

[0054] A process for preparing an anti-aliasing and diffusion-reducing thin film, comprising the following steps:

[0055] S1. The lens is extruded and shaped using a molding mechanism;

[0056] S2. Take out the formed lens and process it again through the cold processing mechanism to remove excess burrs on its surface or change its shape.

[0057] S3. After the lens is placed on the operating table and fixed, its surface is etched by the etching mechanism to create uniformly sized pits to form particles with a particle diameter of approximately 0.01um-3.0um, forming a dispersion layer.

[0058] S4. Place the etched lens into the ultrasonic cleaner in the cleaning mechanism and clean the lens using ultrasonic waves.

[0059] S5. Using a vacuum coating machine in the coating mechanism, an AR anti-reflection film and a broadband ultra-low reflection film are deposited on the surface of the diffuse layer to achieve diffuse reflection and low reflection effects. The film structure is as follows:

[0060] Glass0.172H / 0.172H / 0.416L / 0.4233H / 0.224L / 0.75H / 0.106L / 0.995H / 0.264L / 0.386H / 1.1355L / Air; where H represents Ti3O5 material with a refractive index of 2.345 and L represents SiO2 material with a refractive index of 1.445.

[0061] S6. Fix the lens on the operating table again, and then cut the lens into the required size using the cutting mechanism;

[0062] S7. Assemble the lenses to obtain the finished product.

[0063] By applying special chemical or physical treatments to the glass surface, pits of varying sizes are formed, and the microscopic particle structure is changed into non-uniform particles with particle diameters ranging from approximately 0.01µm to 3.0µm, forming a diffuse layer. This artificially converts the specular reflection of the glass into diffuse reflection. At the same time, by using processes to enhance light transmittance, the rough particles on the glass surface are transformed into smooth particles, thereby increasing the light transmittance after treatment. Generally, the light transmittance after treatment is >89%.

[0064] By combining an ultrawideband low-reflection film with an etched layer to create an anti-ghosting and diffusion layer, it can be applied to optical imaging lenses to remove stray light from the lens surface, improve the pixel resolution of the entire lens, and make its surface achieve diffuse reflection and low reflection, thereby eliminating ghosting problems caused by mirror surface and multiple reflections.

[0065] The operating table in the above preparation process includes a table body 1. A mounting groove 2 is opened horizontally in the upper surface of the table body 1. A first threaded rod 3 with opposite thread directions on the left and right sides is horizontally rotatably installed in the mounting groove 2. A slider 4 is threadedly sleeved on both sides of the first threaded rod 3. A clamping component is fixedly installed at the top of the slider 4. One end of the first threaded rod 3 passes through the table body 1 and is fixedly installed with an adjusting wheel.

[0066] First, place the lens to be processed on the upper surface of the platform 1. Then, rotate the adjusting wheel to control the rotation of the first threaded rod 3. The two sliders 4, which are threaded onto the left and right sides of the first threaded rod 3, will move in opposite directions in the horizontal direction along with the two sets of clamping components until the two sets of clamping components are in contact with the lens, thus completing the positioning of the lens. Controlling the two sliders 4 to separate the two sets of clamping components from the lens can release the fixation. This is convenient and quick, and the positionable lens is no longer limited to a certain size, improving the practicality of the device.

[0067] The clamping assembly includes a U-shaped positioning plate 5 fixedly mounted on the top of the slider 4. The slider 4 has a mounting cavity 6. The surface of the positioning plate 5 has a vertically opening communicating with the mounting cavity 6. A rotating rod 7 is horizontally rotatably mounted within the mounting cavity 6. A first gear 8 is fixedly sleeved on the rotating rod 7. Two first rack rods 9, both meshing with the first gear 8, are horizontally slidably mounted within the mounting cavity 6 via sliding components. A stop plate 10 and a moving plate 11 are fixedly mounted on the surfaces of the two first rack rods 9 respectively via connecting rods. The surface of the moving plate 11 is provided with multiple sets of auxiliary fixing components. The two rotating rods 7 are connected via transmission... The moving components control the rotation together. The auxiliary fixing components include a connecting rod 12 fixedly installed on the surface of the moving plate 11 and a roller 13 installed at one end of the connecting rod 12. The surface of the abutment plate 10 is provided with multiple through holes 14 for multiple rollers 13 to pass through. The sliding components include multiple sliding rods 15 fixedly installed on the left and right side walls of the two first rack rods 9. Multiple sliding grooves 16 are horizontally opened on the left and right walls of the mounting cavity 6. One end of the multiple sliding rods 15 is slidably arranged in the multiple sliding grooves 16. The two abutment plates 10 are bonded with an anti-slip layer on the side that is close to each other. The anti-slip layer is made of rubber.

[0068] The transmission assembly includes a second threaded rod 17, a slide plate 18 threaded onto the second threaded rod 17, two second gears 19, and two second rack rods 20. A fixed plate is fixedly installed on one side of the platform 1. The second threaded rod 17 is vertically rotatably mounted on the upper surface of the fixed plate. A horizontal sliding opening 21 communicating with the mounting groove 2 is opened on one side wall of the platform 1. One end of each of the two rotating rods 7 extends through the sliding opening 21. The two second gears 19 are respectively fixedly sleeved on the ends of the two rotating rods 7 that extend through the sliding opening 21. The two second rack rods 20 are respectively... The slide plate 18 is connected to two second gears 19 and has a support rod 22 fixedly installed at its bottom. Two limiting grooves 23 are horizontally opened on the upper surface of the slide plate 18. The bottom ends of the two support rods 22 are horizontally slidably arranged in the two limiting grooves 23. An L-shaped mounting plate 24 is rotatably installed at one end of the rotating rod 7 that passes through the sliding port 21. A limiting port 25 is vertically opened on the side of the mounting plate 24 near the second gear 19. A limiting block 26 is fixedly installed on the surface of the second rack rod 20. The two limiting blocks 26 are slidably arranged in the two limiting ports 25 respectively.

[0069] After the lens is positioned, both abutment plates 10 will abut against the lens, clamping it between them. If the lens position needs to be moved during processing, simply rotate the second threaded rod 17 to control the slide plate 18 threaded onto the second threaded rod 17 to move upward. The two second rack rods 20 will then move upward, and during this upward movement, the two second gears 19 will rotate, causing the two first gears 8, which are fixedly fitted onto the two rotating rods 7, to rotate as well. During this rotation, the two first rack rods 9 located in the mounting cavity 6 will move closer to each other horizontally. At this point, the two abutment plates 10 will no longer abut against the lens, while the multiple rollers 13, along with the moving plate 11, will abut against the lens. The lens is clamped and pressed between multiple rollers 13, and then pushed to move between the two sets of clamping components. The multiple rollers 13 will roll and contact the side wall of the lens to ensure that the lens will not move longitudinally during the movement, but only laterally, ensuring the stability of the lens during the movement. After moving to the appropriate position, the second threaded rod 17 is rotated again to control the slide plate 18 to move down, so that the multiple rollers 13 will move back to their original positions from the multiple through holes 14. The two abutment plates 10 will approach each other and abut against the lens again, achieving the effect of clamping and fixing the lens. If the position of the lens needs to be moved during processing, the lens can be moved without completely releasing the clamping and fixing of the lens, thereby avoiding the need to spend a long time repositioning the lens after moving it, reducing the workload of the workers.

[0070] When the two rotating rods 7 move relative to each other in the horizontal direction, the support rods 22 at the bottom of the two second rack rods 20 will also move in the two limiting grooves 23 respectively. At the same time, under the action of the limiting port 25 and the limiting block 26, the two second rack rods 20 will always maintain a meshing state with the two second gears 19 and will not disengage.

[0071] In this invention, surface etching technology is applied to concave and convex spherical lenses to eliminate ghosting caused by specular reflection in multi-lens combinations, thereby improving image quality and clarity. An anti-ghosting layer is created by combining an ultra-wideband low-reflection film with the etched layer and applied to an optical imaging lens. This removes stray light from the lens surface, improving the overall pixel resolution and achieving diffuse and low-reflection effects. This eliminates ghosting caused by specular reflection and multiple reflections. Compared to traditional methods, this process simplifies the workflow, increases yield, and eliminates bonding, significantly reducing the number of lenses and greatly saving product costs.

[0072] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A process for preparing an anti-aliasing and diffusion-reducing thin film, characterized in that, The process includes the following steps: S1. The lens is extruded and shaped using a molding mechanism; S2. Take out the formed lens and process it again through the cold processing mechanism to remove excess burrs on its surface or change its shape. S3. After the lens is placed on the operating table and fixed, the surface is etched by the etching mechanism to create uniformly sized pits to form particles with a particle diameter ranging from 0.01um to 3.0um, forming a dispersion layer. S4. Place the etched lens into the ultrasonic cleaner in the cleaning mechanism and clean the lens using ultrasonic waves. S5. Using the vacuum coating machine in the coating mechanism, AR anti-reflection film and broadband ultra-low reflection film are coated on the surface of the diffuse layer to achieve the effect of diffuse reflection and low reflection. S6. Fix the lens on the operating table again, and then cut the lens into the required size using the cutting mechanism; S7. Assemble the lenses to obtain the finished product.

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