Fabrication and method of an optical lens that filters harmful ultraviolet light

Abstract

The application discloses a preparation and method of an optical lens capable of filtering harmful ultraviolet light, and is applied to the technical field of the preparation of the optical lens capable of filtering harmful ultraviolet light. The optical lens is provided with a supporting plate and a channel. In the vacuumizing process, the gas generated from the lower end of the channel with a large diameter enters the channel, and the flow speed is increased when the gas encounters the narrow flow in the middle part of the channel. Then, the gas continues to flow to the position of the vacuum pump. Since the upper end of the channel has a gradually increased diameter, the gas is uniformly dispersed and impacts the surface of the optical lens body. Then, the particle impurities originally deposited on the surface of the optical lens body are removed and flow out from the gap between the channel and the optical lens body, and are finally removed by the vacuum pump. The surface of the optical lens body is further cleaned, the cleanliness of the surface of the optical lens body is ensured, and the quality of the film coating is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of optical lens manufacturing technology that can filter harmful ultraviolet light, and specifically relates to a method for manufacturing an optical lens that can filter harmful ultraviolet light. Background Technology

[0002] Limited by the manufacturing process of optical lenses that can filter harmful ultraviolet light, they will face various application scenarios during processing, not limited to the one mentioned below. More specifically, in order to enable them to filter harmful ultraviolet light, vacuum evaporation is often used to coat their surface. Before coating the optical lens, it is necessary to thoroughly clean the impurities on the surface of the optical lens. In the existing technology, the optical lens is usually cleaned and dried before coating to remove impurities from the surface of the optical lens. However, when handling the optical lens and installing it on the vacuum evaporation device, dust particles floating in the air can still easily fall onto the surface of the optical lens, thereby reducing the quality of the coating and affecting the optical lens's ability to filter harmful ultraviolet light.

[0003] Based on the above-mentioned problems, it can be found that existing devices on the market are difficult to avoid the problems mentioned above when in use. Moreover, even if they can be solved, they require the connection of external devices, thus failing to achieve the desired effect. Therefore, we propose a method for preparing an optical lens that can filter harmful ultraviolet light and further clean the optical lens during use. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing devices for preparing optical lenses that can filter harmful ultraviolet light. Its advantages lie in the use of a support plate and a channel. Because the lower diameter of the channel is large on both sides, the gas generated during vacuuming enters the channel from the lower end. When it encounters the relatively narrow flow in the middle of the channel, its flow velocity increases. As it continues to flow towards the vacuum pump, the upper diameter of the channel gradually increases, resulting in uniform gas dispersion and impact on the surface of the optical lens body. This removes particulate impurities that were originally settled on the surface of the optical lens body, allowing them to flow out from the gap between the channel and the optical lens body until they are discharged by the vacuum pump. This further cleans the surface of the optical lens body, ensuring its cleanliness and thus guaranteeing the quality of the coating. Furthermore, by incorporating a mounting component and a fixing component, the fixing component can compress the gas into the mounting component during the fixing of the optical lens body. This allows the mounting component to adapt to optical lens bodies of different specifications, achieving a flexible fixing effect. Simultaneously, by connecting it to a geared motor, the mounting component can be driven to rotate, enabling the optical lens body to undergo double-sided and uniform coating treatment.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an apparatus for preparing an optical lens that can filter harmful ultraviolet light, comprising a vacuum evaporation device, wherein an evaporation source is bolted to the bottom inside the vacuum evaporation device and a support plate is bolted to the top inside the vacuum evaporation device, wherein a plurality of channels are opened inside the support plate, and a placement component is rotatably connected inside the channels, and an optical lens body is snapped into the placement component, wherein the right side of the placement component extends to the right side of the vacuum evaporation device and is drivenly connected to a reduction motor, and a fixing component is sleeved on the right side of the surface of the placement component, and the two are used in conjunction.

[0006] By employing the above technical solution, and by setting up a support plate and a channel, the gas generated during the vacuuming process enters the channel from the lower end due to the large diameter at both sides of the channel. When it encounters the relatively narrow flow in the middle of the channel, the flow velocity increases. As it continues to flow towards the location of the vacuum pump, the gas gradually increases in diameter at the upper end of the channel, thus evenly dispersing and impacting the surface of the optical lens body. This removes particulate impurities that were originally settled on the surface of the optical lens body and flows out from the gap between the channel and the optical lens body until it is discharged by the vacuum pump. This further cleans the surface of the optical lens body, ensuring its cleanliness and thus guaranteeing the quality of the coating. By setting up a placement component and a fixing component, the fixing component can compress the gas into the placement component when fixing the optical lens body. This allows the placement component to adapt to optical lens bodies of different specifications, achieving a flexible fixing effect. At the same time, by using its connection with the geared motor, the placement component can be driven to rotate, enabling the optical lens body to undergo double-sided and uniform coating treatment.

[0007] The present invention is further configured such that: the mounting component includes a fixing part, the fixing part is rotatably connected to the inside of the channel, and a connecting rod is bolted between the opposite sides of two adjacent fixing parts, the connecting rod is provided with a pipe, and the side of the pipe near the fixing part is connected to the fixing part, and a fixing rod is bolted to the side of the two fixing parts on both sides near the inner wall of the support plate, the fixing rod is rotatably connected to the support plate, and the right side of the right pipe extends into the inside of the right fixing rod.

[0008] By adopting the above technical solution, by setting up the mounting component, the gas can be squeezed into the inside of the right fixing rod through the fixing component and enter the inside of the pipeline, so that the gas enters the inside of the fixing part and, under the action of air pressure, the fixing part fixes the optical lens body. It can also adapt to optical lens bodies of different specifications, achieving a flexible fixing effect. Furthermore, by driving the right fixing rod to rotate through the drive motor, the connecting rod can be rotated to achieve double-sided and uniform coating treatment of the optical lens body.

[0009] The present invention is further configured such that: the fixing part includes a hollow ring body, the inner wall of the hollow ring body is connected to a connecting cylinder in an annular shape, and a movable rod is slidably connected inside the connecting cylinder; a rubber pad is bolted to the side of the movable rod away from the inner wall of the hollow ring body, and the rubber pad is arranged in a fan shape; a return spring is sleeved on the surface of the movable rod, and one side of the return spring is bolted to the inner wall of the connecting cylinder.

[0010] By adopting the above technical solution, a fixing part is set up, and gas is introduced into the interior of the hollow ring through the pipeline, and then into the interior of the connecting cylinder, which pushes the moving rod to move inside, so that the moving rod pushes the rubber pad to contact the edge of the optical lens body, thereby achieving the effect of fixing it.

[0011] The present invention is further configured such that: the fixing component includes a fixing base, a fixing cylinder is bolted inside the fixing base, and a connecting part is connected to the top of the fixing cylinder; a movable piston is slidably connected inside the fixing cylinder; a connecting rod is rotatably connected to the front side of the movable piston; a turntable is rotatably connected to the other end of the connecting rod; and a drive motor is bolted to the rear side of the turntable.

[0012] By adopting the above technical solution, a fixed component is set up, and a drive motor drives the turntable to rotate, which in turn drives the connecting rod to make arc-shaped movements. Under the rotational connection between the connecting rod and the moving piston, the moving piston moves inside the fixed cylinder. When moving to the left, the volume of the fixed cylinder decreases, generating a squeezing effect, which causes the gas pre-stored in the fixed cylinder to enter the pipeline through the connecting part. When moving to the right, the volume of the fixed cylinder increases, which reduces the gas pressure, thereby achieving the effect of releasing the fixed part from fixing the optical lens body.

[0013] The present invention is further configured such that: the connecting part includes a sleeve, the sleeve is sleeved on the surface of the right fixed rod, sealing blocks are provided on both sides of the inner wall of the sleeve, and the surface of the sealing blocks is in rotatable contact with the inner wall of the right fixed rod; the bottom of the sleeve is connected to a connecting pipe, and the connecting pipe is connected to the fixed cylinder.

[0014] By adopting the above technical solution, by setting a connecting part, the sleeve is fitted onto the surface of the right-side fixed rod, and the sealing block rotates in contact with its inner wall. This allows for easy connection of the gas path without affecting the rotation of the right-side fixed rod, facilitating the flow of gas through the connecting pipe.

[0015] The invention is further configured such that: the inside of the right-side fixing rod and the pipeline is provided with annular air holes for use with the sleeve, and two sealing plates are sleeved on the surface of the right-side pipeline. The surface of the sealing plates is bolted to the inner wall of the right-side fixing rod, and the surface of the right-side fixing rod is provided with two sealing grooves for use with the sealing blocks.

[0016] By adopting the above technical solution, the gas can be easily introduced into the pipeline by setting vent holes, and the gas can be prevented from entering the cavity between the pipeline, the connecting rod and the right-side fixed rod by setting a sealing plate, thus ensuring the gas pressure strength and stability. The sealing groove can achieve the sealing effect in conjunction with the sealing block.

[0017] The invention is further configured such that: two connecting plates are bolted to the right side of the movable piston, and the left end of the connecting rod is rotatably connected between the two connecting plates on opposite sides.

[0018] By adopting the above technical solution and setting a connecting plate, the connecting rod and the moving piston can be rotatably connected.

[0019] A method of using an optical lens manufacturing apparatus capable of filtering harmful ultraviolet light includes the following steps: S1. Lens cleaning: Clean the surface of the optical lens body to be coated; S2. Lens drying: Place the cleaned optical lens body into a drying oven to dry and remove any residual liquid from the optical lens body; S3. Lens installation: The dried optical lens body is installed into the placement component of the vacuum evaporation device and fixed by the fixing component; S4. Vacuum evaporation of the lens: Start the vacuum pump of the vacuum evaporation device to extract the gas in the vacuum evaporation device. The gas between the placement component and the evaporation source is quickly drawn through the channel by the vacuum pump. The rapidly passing airflow washes the optical lens body and removes impurities from the surface of the optical lens body. S5. Lens vapor deposition: After the vacuum value in the vacuum vapor deposition device reaches the standard, the evaporation source is started to vapor deposit the optical lens body. The gaseous particles formed by the evaporation source are collected at the end of the channel and uniformly attached to the surface of the optical lens body to form a film layer. S6. Post-coating treatment: After the optical lens body with the vapor deposition completed is removed from the mounting assembly in the vacuum vapor deposition device, it is dried and cured.

[0020] The present invention is further configured such that the optical lens body cleaning in step S1 specifically includes the following steps: S1.1. Use glass cleaning agent to perform ultrasonic cleaning on the optical lens body; S1.2. After cleaning, immerse the optical lens body in an ethanol solution for a second cleaning.

[0021] The present invention further specifies that the vapor deposition conditions in step S5 are: a vacuum degree of 2.8 × 10⁻⁶. -7 The temperature is 110℃, the melting voltage of the vapor deposition material is 8.2kV, and the melting current is 13A.

[0022] Using the above technical solution, by setting the vacuum degree to 2.8 × 10⁻⁶ -7 The temperature is 110℃, the melting voltage of the vapor deposition material is 8.2kV, and the melting current is 13A, which can ensure the coating quality and effect of the optical lens body.

[0023] In summary, the present invention has the following beneficial effects: By setting up support plates and channels, the gas generated during the vacuuming process enters the channel from the bottom due to the large diameter at the lower ends of both sides of the channel. When it encounters the relatively narrow flow in the middle of the channel, the flow velocity increases. Then, as it continues to flow towards the location of the vacuum pump, the gas is evenly dispersed and impacts the surface of the optical lens body due to the gradually increasing diameter at the upper end of the channel. This carries away the particulate impurities that were originally settled on the surface of the optical lens body and flows out from the gap between the channel and the optical lens body until it is discharged by the vacuum pump. This further cleans the surface of the optical lens body, ensuring the cleanliness of the optical lens body surface and thus guaranteeing the quality of the coating. By setting up a mounting component and a fixing component, when fixing the optical lens body, the fixing component can squeeze the gas into the mounting component, so that the mounting component can adapt to optical lens bodies of different specifications and achieve a flexible fixing effect. At the same time, by using its connection with the geared motor, the mounting component can be driven to rotate, so that the optical lens body can be coated on both sides and uniformly. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional schematic diagram of the vacuum evaporation apparatus of the present invention; Figure 3 This is a schematic diagram of the connection between the support plate and the mounting assembly of the present invention; Figure 4 This is the invention Figure 2 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram showing the connection between the mounting component and the fixing component of the present invention; Figure 6 This is a schematic diagram of the connecting part structure of the present invention; Figure 7 This is a top view of the fixing part of the present invention; Figure 8 This is a schematic diagram of the usage method of the optical lens preparation device that can filter harmful ultraviolet light according to the present invention; Figure 9 This is a schematic diagram of the lens cleaning process of the present invention.

[0025] Reference numerals: 1. Vacuum evaporation device; 2. Evaporation source; 3. Support plate; 4. Channel; 5. Mounting component; 51. Fixing part; 511. Hollow ring; 512. Connecting cylinder; 513. Moving rod; 514. Rubber pad; 515. Return spring; 52. Connecting rod; 53. Pipeline; 54. Fixing rod; 6. Optical lens body; 7. Gear motor; 8. Fixing component; 81. Fixing seat; 82. Fixing cylinder; 83. Moving piston; 84. Connecting rod; 85. Turntable; 86. Drive motor; 87. Connecting part; 871. Sleeve; 872. Sealing block; 873. Connecting pipe; 9. Vent; 10. Sealing plate; 11. Sealing groove; 12. Connecting plate. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] refer to Figure 1-7 An apparatus for preparing an optical lens capable of filtering harmful ultraviolet light includes a vacuum evaporation device 1. An evaporation source 2 is bolted to the bottom of the vacuum evaporation device 1, and a support plate 3 is bolted to the top of the vacuum evaporation device 1. The support plate 3 has several channels 4 inside, and a mounting assembly 5 is rotatably connected inside the channels 4. An optical lens body 6 is snapped into the mounting assembly 5. The right side of the mounting assembly 5 extends to the right side of the vacuum evaporation device 1 and is connected to a geared motor 7. A fixing assembly 8 is sleeved on the right side of the mounting assembly 5. The two work together. By setting up the support plate 3 and the channels 4, because the lower diameters of the channels 4 are large, the gas generated during the vacuuming process enters the channels 4 from the lower end. When it encounters the relatively narrow flow in the middle of the channels 4, the flow velocity increases, and then it continues to flow towards the location of the vacuum pump. As the diameter of the channel 4 gradually increases at the upper end, the gas is evenly dispersed and impacts the surface of the optical lens body 6, thereby carrying away the particulate impurities that originally settled on the surface of the optical lens body 6 and flowing out from the gap between the channel 4 and the optical lens body 6 until they are discharged by the vacuum pump. This achieves further cleaning of the surface of the optical lens body 6, ensuring the cleanliness of the surface of the optical lens body 6 and thus guaranteeing the quality of the coating. By setting up the placement component 5 and the fixing component 8, when fixing the optical lens body, the fixing component 8 can squeeze the gas into the component of its placement component 5, so that the placement component 5 can adapt to optical lens bodies 6 of different specifications and achieve a flexible fixing effect. At the same time, by utilizing its connection with the geared motor 7, the placement component 5 can be driven to rotate, so that the optical lens body 6 can undergo double-sided and uniform coating treatment.

[0028] like Figure 5As shown, the mounting assembly 5 includes a fixing part 51, which is rotatably connected to the inside of the channel 4. A connecting rod 52 is bolted between the opposite sides of two adjacent fixing parts 51. A pipe 53 is provided inside the connecting rod 52, and the side of the pipe 53 near the fixing part 51 is connected to the fixing part 51. Fixing rods 54 are bolted to the sides of the two fixing parts 51 near the inner wall of the support plate 3. The fixing rods 54 are rotatably connected to the support plate 3. The right side of the pipe 53 extends to the inside of the right fixing rod 54. By setting the mounting assembly 5, gas can be squeezed into the inside of the right fixing rod 54 by the fixing assembly 8 and enter the inside of the pipe 53, so that the gas enters the inside of the fixing part 51. Under the action of air pressure, the fixing part 51 fixes the optical lens body 6. It also has the ability to adapt to optical lens bodies 6 of different specifications, achieving a flexible fixing effect. The right fixing rod 54 is driven to rotate by the reduction motor 7, so that the connecting rod 52 can be rotated to achieve double-sided and uniform coating treatment of the optical lens body 6.

[0029] like Figure 7 As shown, the fixing part 51 includes a hollow ring body 511. The inner wall of the hollow ring body 511 is connected to a connecting cylinder 512 in an annular shape. A moving rod 513 is slidably connected inside the connecting cylinder 512. A rubber pad 514 is bolted to the side of the moving rod 513 away from the inner wall of the hollow ring body 511. The rubber pad 514 is arranged in a fan shape. A return spring 515 is sleeved on the surface of the moving rod 513. One side of the return spring 515 is bolted to the inner wall of the connecting cylinder 512. By setting the fixing part 51, gas is allowed to enter the interior of the hollow ring body 511 through the pipe 53 and then enter the interior of the connecting cylinder 512. This gas pushes the moving rod 513 to move inside the connecting cylinder 512, causing the moving rod 513 to push the rubber pad 514 to contact the edge of the optical lens body 6, thereby achieving the effect of fixing it.

[0030] like Figure 5As shown, the fixing assembly 8 includes a fixing base 81, a fixing cylinder 82 is bolted inside the fixing base 81, and a connecting part 87 is connected to the top of the fixing cylinder 82. A movable piston 83 is slidably connected inside the fixing cylinder 82. A connecting rod 84 is rotatably connected to the front side of the movable piston 83, and a turntable 85 is rotatably connected to the other end of the connecting rod 84. A drive motor 86 is bolted to the rear side of the turntable 85. By setting the fixing assembly 8, the drive motor 86 drives the turntable 85 to rotate, which can drive the connecting rod 84 to perform arc-shaped movements. Thus, under the rotational connection between the connecting rod 84 and the movable piston 83, the movable piston 83 moves inside the fixing cylinder 82. When moving to the left, the internal volume of the fixing cylinder 82 decreases, generating a squeezing effect, causing the gas pre-stored in the fixing cylinder 82 to enter the interior of the pipe 53 through the connecting part 87. When moving to the right, the internal volume of the fixing cylinder 82 increases, causing the gas pressure to decrease, thereby achieving the effect of releasing the fixing part 51 from fixing the optical lens body 6.

[0031] like Figure 6 As shown, the connecting part 87 includes a sleeve 871, which is fitted onto the surface of the right-side fixed rod 54. Sealing blocks 872 are provided on both sides of the inner wall of the sleeve 871, and the surface of the sealing blocks 872 is in rotatable contact with the inner wall of the right-side fixed rod 54. A connecting pipe 873 is connected to the bottom of the sleeve 871, and the connecting pipe 873 is connected to the fixed cylinder 82. By providing the connecting part 87, and by fitting the sleeve 871 onto the surface of the right-side fixed rod 54, and by having the sealing blocks 872 in rotatable contact with its inner wall, the air passage can be easily connected without affecting the rotation of the right-side fixed rod 54, allowing gas to flow through the connecting pipe 873.

[0032] like Figure 6 As shown, both the right-side fixing rod 54 and the pipe 53 have annularly formed air holes 9 that cooperate with the sleeve 871. The surface of the right-side pipe 53 is fitted with two sealing plates 10, and the surface of the sealing plates 10 is bolted to the inner wall of the right-side fixing rod 54. The surface of the right-side fixing rod 54 has two sealing grooves 11 that cooperate with the sealing block 872. By setting the air holes 9, gas can easily enter the interior of the pipe 53. By setting the sealing plates 10, gas can be prevented from entering the cavity between the pipe 53, the connecting rod 52, and the right-side fixing rod 54, thus ensuring the gas pressure strength and stability. By setting the sealing grooves 11, the sealing effect can be achieved by cooperating with the sealing block 872.

[0033] like Figure 5 As shown, two connecting plates 12 are bolted to the right side of the movable piston 83, and the left end of the connecting rod 84 is rotatably connected between the two connecting plates 12 on opposite sides. By setting the connecting plates 12, the rotatable connection between the connecting rod 84 and the movable piston 83 can be realized.

[0034] Brief description of the usage process: The coated optical lens body 6 is placed between adjacent rubber pads 514. Then, the drive motor 86 drives the turntable 85 to rotate, causing the connecting rod 84 to move in an arc. Under the rotational connection between the connecting rod 84 and the moving piston 83, the moving piston 83 moves inside the fixed cylinder 82. When moving to the left, the volume of the fixed cylinder 82 decreases, generating a squeezing effect. This causes the gas pre-stored in the fixed cylinder 82 to pass through the connecting part 87 and through the right fixed rod 54 into the inside of the pipe 53, and then into the inside of the hollow ring 511. After entering the inside of the connecting cylinder 512, under the action of air pressure, the moving rod 513 can be pushed to move inside it. This causes the moving rod 513 to push the rubber pad 514 to contact the edge of the optical lens body 6, fixing it in place. Then, the air inside is discharged by the vacuum pump of the vacuum evaporation device 1. Since the diameter of the lower ends of the channel 4 is large, the gas generated during the vacuuming process enters the channel 4 from the lower end. When it encounters the relatively narrow flow in the middle of the channel 4, the flow velocity increases. Then, it continues to flow towards the location of the vacuum pump. Since the diameter of the upper end of the channel 4 gradually increases, the gas is evenly dispersed and impacts the surface of the optical lens body 6. This carries away the particulate impurities that were originally settled on the surface of the optical lens body 6 and flows out from the gap between the channel 4 and the optical lens body 6 until it is discharged by the vacuum pump. Finally, the coating material is evaporated by the evaporation source 2. The gaseous particles formed by the evaporation by the evaporation source 2 are collected at the end of the channel 4 and evenly attached to the surface of the optical lens body 6 to form a film layer. At the same time, the right fixed rod 54 is driven to rotate by the reduction motor 7, which synchronously drives the connecting rod 52 and the fixed part 51 to rotate, so that the optical lens body 6 can undergo double-sided and uniform coating treatment.

[0035] refer to Figure 8-9 The present invention also discloses a method for using an optical lens manufacturing apparatus capable of filtering harmful ultraviolet light, comprising the following steps: S1. Lens cleaning: Clean the surface of the optical lens body 6 to be coated; S2. Lens drying: Place the cleaned optical lens body 6 into a drying oven to dry and remove any residual liquid from the optical lens body 6. S3. Lens installation: The dried optical lens body 6 is installed into the placement component 5 of the vacuum evaporation device 1 and fixed by the fixing component 8. S4. Vacuum evaporation of the lens: Start the vacuum pump of the vacuum evaporation device 1 to extract the gas in the vacuum evaporation device 1. The gas between the placement component 5 and the evaporation source 2 is quickly drawn through the channel 4 by the vacuum pump. The rapidly passing airflow washes the optical lens body 6 and removes impurities from the surface of the optical lens body 6. S5. Lens vapor deposition: After the vacuum value in the vacuum vapor deposition device 1 reaches the standard, the evaporation source 2 is started to vapor deposit the optical lens body 6. The gaseous particles formed by the evaporation of the evaporation source 2 are collected through the end of the channel 4 and uniformly attached to the surface of the optical lens body 6 to form a film layer. S6. Post-coating treatment: After the optical lens body 6 with the completed vapor deposition is removed from the mounting component 5 in the vacuum vapor deposition device 1, it is dried and cured.

[0036] like Figure 9 As shown, the cleaning of the optical lens body 6 in step S1 specifically includes the following steps: S1.1. The optical lens body 6 is ultrasonically cleaned using a glass cleaning agent; S1.2. After cleaning, the optical lens body 6 is placed in an ethanol solution for a second cleaning.

[0037] like Figure 8 As shown, the vapor deposition conditions in step S5 are: vacuum degree of 2.8 × 10⁻⁶. -7 The temperature was 110℃, the melting voltage of the vapor-deposited material was 8.2kV, the melting current was 13A, and the vacuum degree was set to 2.8×10⁻⁶. -7 The temperature is 110℃, the melting voltage of the vapor deposition material is 8.2kV, and the melting current is 13A, which can ensure the coating quality and effect of the optical lens body 6.

[0038] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An apparatus for preparing an optical lens capable of filtering harmful ultraviolet light, comprising a vacuum evaporation apparatus (1), characterized in that: An evaporation source (2) is bolted to the bottom of the vacuum evaporation device (1), and a support plate (3) is bolted to the top of the vacuum evaporation device (1). Several channels (4) are opened inside the support plate (3), and a placement component (5) is rotatably connected inside the channel (4). An optical lens body (6) is snapped inside the placement component (5). The right side of the placement component (5) extends to the right side of the vacuum evaporation device (1) and is connected to a geared motor (7) for driving the placement component (5) to rotate, so that the optical lens body (6) can be coated on both sides and uniformly. A fixing component (8) is sleeved on the right side of the surface of the placement component (5), and the two are used together. The mounting assembly (5) includes a fixing part (51), which is rotatably connected to the inside of the channel (4), and a connecting rod (52) is bolted between the opposite sides of two adjacent fixing parts (51). A pipe (53) is provided inside the connecting rod (52), and the side of the pipe (53) near the fixing part (51) is connected to the fixing part (51). A fixing rod (54) is bolted to the side of the two fixing parts (51) near the inner wall of the support plate (3). The fixing rod (54) is rotatably connected to the support plate (3), and the right side of the pipe (53) extends to the inside of the right fixing rod (54). The fixing part (51) includes a hollow ring body (511), the inner wall of the hollow ring body (511) is connected to a connecting cylinder (512) in an annular shape, and a moving rod (513) is slidably connected inside the connecting cylinder (512). A rubber pad (514) is bolted to the side of the moving rod (513) away from the inner wall of the hollow ring body (511), and the rubber pad (514) is arranged in a fan shape. A return spring (515) is sleeved on the surface of the moving rod (513), and one side of the return spring (515) is bolted to the inner wall of the connecting cylinder (512). The fixing component (8) includes a fixing seat (81), a fixing cylinder (82) is bolted inside the fixing seat (81), and a connecting part (87) is connected to the top of the fixing cylinder (82). A moving piston (83) is slidably connected inside the fixing cylinder (82). A connecting rod (84) is rotatably connected to the front side of the moving piston (83), and a turntable (85) is rotatably connected to the other end of the connecting rod (84). A drive motor (86) is bolted to the rear side of the turntable (85). The connecting part (87) includes a sleeve (871), which is sleeved on the surface of the right fixing rod (54). Both sides of the inner wall of the sleeve (871) are provided with sealing blocks (872), and the surface of the sealing blocks (872) is in rotatable contact with the inner wall of the right fixing rod (54). The bottom of the sleeve (871) is connected to a connecting pipe (873), and the connecting pipe (873) is connected to the fixing cylinder (82).

2. The apparatus for preparing an optical lens capable of filtering harmful ultraviolet light according to claim 1, characterized in that: The inside of the right-side fixing rod (54) and the pipe (53) are both annularly provided with air holes (9) that cooperate with the sleeve (871). The surface of the right-side pipe (53) is fitted with two sealing plates (10). The surface of the sealing plates (10) is bolted to the inner wall of the right-side fixing rod (54). The surface of the right-side fixing rod (54) is provided with two sealing grooves (11) that cooperate with the sealing block (872).

3. The apparatus for preparing an optical lens capable of filtering harmful ultraviolet light according to claim 1, characterized in that: Two connecting plates (12) are bolted to the right side of the movable piston (83), and the left end of the connecting rod (84) is rotatably connected between the two connecting plates (12) on opposite sides.

4. A method of using an apparatus for preparing an optical lens capable of filtering harmful ultraviolet light as described in any one of claims 1-3, characterized in that: Includes the following steps: S1. Lens cleaning: Clean the surface of the optical lens body (6) to be coated; S2. Lens drying: Place the cleaned optical lens body (6) into a drying oven to dry and remove residual liquid from the optical lens body (6); S3. Lens installation: The dried optical lens body (6) is installed into the placement component (5) of the vacuum evaporation device (1) and fixed by the fixing component (8); S4. Vacuum evaporation of the lens: Start the vacuum pump of the vacuum evaporation device (1) to extract the gas in the vacuum evaporation device (1). The gas between the placement component (5) and the evaporation source (2) is rapidly drawn through the channel (4) by the vacuum pump. The rapidly passing airflow washes the optical lens body (6) and removes impurities from the surface of the optical lens body (6). S5. Lens vapor deposition: After the vacuum value in the vacuum vapor deposition device (1) reaches the standard, the evaporation source (2) is started to vapor deposit the optical lens body (6). The gaseous particles formed by the evaporation source (2) are collected at the end of the channel (4) and uniformly attached to the surface of the optical lens body (6) to form a film layer. S6. Post-coating treatment: After the optical lens body (6) with the vapor deposition completed is removed from the placement component (5) in the vacuum vapor deposition device (1), it is dried and cured.

5. The method of using the apparatus for preparing an optical lens capable of filtering harmful ultraviolet light according to claim 4, characterized in that: The cleaning of the optical lens body (6) in step S1 specifically includes the following steps: S1.

1. Use glass cleaning agent to perform ultrasonic cleaning on the optical lens body (6); S1.

2. After cleaning, the optical lens body (6) is placed in an ethanol solution for a second cleaning.

6. The method of using the apparatus for preparing an optical lens capable of filtering harmful ultraviolet light according to claim 4, characterized in that: The vapor deposition conditions in step S5 are: vacuum degree of 2.8 × 10⁻⁶. -7 The temperature is 110℃, the melting voltage of the vapor deposition material is 8.2kV, and the melting current is 13A.

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