Glasses capable of filtering harmful spectrum

Abstract

The invention discloses a pair of glasses capable of filtering harmful spectrums, which relates to the technical field of glasses and comprises a glasses frame and two symmetrically arranged lenses. According to the glasses disclosed by the invention, through real-time monitoring of the optical sensor and rapid processing of the microprocessor, the glasses can automatically and rapidly adjust the light transmittance and optical characteristics of the lenses according to the change of an external illumination environment, so that a wearer can obtain comfortable visual experience in different illumination environments without manual operation; according to the lens prepared by the preparation method disclosed by the invention, the whole lens not only can meet the full shielding of short-wavelength blue light and reduce the harm of short-wavelength blue light and ultraviolet light to human eyes, but also can keep relatively high transmittance to long-wavelength blue light and visible light and keep favorable influence of illumination on a human body; and meanwhile, a dual blue light prevention technology of film layer reflection and substrate absorption is utilized, so that low transmittance of harmful blue light and high transmittance of beneficial blue light can be realized at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of glasses, and specifically to a pair of glasses that filters harmful spectra. Background Art

[0002] With the rapid development of technology, electronic products and the Internet have become an indispensable part of people's lives. However, the long-term use of electronic products and over-reliance on the Internet have brought many problems to people's health, especially vision health problems. According to statistics, the myopia rate among teenagers in China has been increasing year by year, and the myopia problem has attracted great attention from the whole society. Harmful spectra are an important factor leading to vision damage. Harmful spectra mainly come from the blue light and ultraviolet light emitted by the screens of electronic products. Harmful spectra such as ultraviolet light and blue light pose a great threat to human health, especially to the eyes. Prolonged exposure to harmful spectra is likely to cause eye fatigue, vision decline, and even lead to eye diseases such as cataracts.

[0003] For example, in the Chinese patent "A pair of red light filtering glasses" with the patent number CN118022194A, it includes a frame and a fixing member. The frame is fixed to the eyes through the fixing member. A converging lens is provided on the frame, and a collimating lens is provided inside the converging lens; the converging lens or the collimating lens is made of a red light filtering material, or a filter is provided outside the converging lens or between the converging lens and the collimating lens or inside the collimating lens; the converging lens is used to converge the received light beam onto the collimating lens, the collimating lens is used to collimate the light beam converged by the converging lens, the area of the converging lens is larger than that of the collimating lens, and the filter is used to obtain and transmit the red light in the light beam.

[0004] In recent years, there have been many studies and product developments on glasses that filter harmful spectra at home and abroad. These products mainly achieve the purpose of filtering harmful spectra through technical means such as adding dyes and film layers. However, there are still certain deficiencies in the filtering effect of existing products. Although ordinary glasses can block ultraviolet light and some blue light to a certain extent, the filtering of blue light often lacks accuracy. Either the filtering is excessive, resulting in color distortion of the viewed objects, or the filtering is insufficient, unable to effectively protect the eyes from the harmful blue light band. In addition, most glasses only have a single function and are difficult to meet the comprehensive needs of users for clear vision and effective filtering of harmful spectra in different lighting environments.

[0005] In view of this, the present application intends to propose a pair of glasses that filters harmful spectra. Summary of the Invention

[0006] The object of the present invention is to provide a pair of glasses for filtering harmful spectra, so as to solve the problems proposed in the above-mentioned background technology. Although existing ordinary glasses can block ultraviolet rays and some blue light to a certain extent, the filtering of blue light often lacks accuracy. Either the filtering is excessive, resulting in color distortion of the viewed objects, or the filtering is insufficient, unable to effectively protect the eyes from the harmful blue light band. In addition, most glasses only have a single function and are difficult to meet the comprehensive needs of users for clear vision and effective filtering of harmful spectra in different lighting environments.

[0007] To achieve the above object, the present invention provides the following technical solution: A pair of glasses for filtering harmful spectra, including a frame and two symmetrically arranged lenses. The frame includes a nose bridge rod, two lens rim rods and two temple arms. The two lens rim rods are symmetrically fixed at both ends of the nose bridge rod. One end of each of the two lens rim rods is fixedly connected with a hinge. The two temple arms are symmetrically rotatably installed at one end of the two hinges. The two lenses are symmetrically installed at the bottom of the two lens rim rods. A protective shell one is fixedly connected to the outside of one of the hinges, and a protective shell two is fixedly connected to the outside of the other hinge. One end inside the protective shell one is fixedly connected with an intraocular pressure sensor, and the other end inside the protective shell one is fixedly connected with an acceleration sensor. A flashing light is fixedly connected to the outside of one end of the protective shell two, and a charging port is opened on the outside of one end of the protective shell two. One end inside the protective shell two is fixedly connected with a micro lithium battery, and the other end inside the protective shell two is fixedly connected with a microprocessor. A micro power manager is arranged at one end of the micro lithium battery, and a light sensor is fixedly connected to the other end of the micro lithium battery. A controller is arranged inside the protective shell two. The controller is used to receive the monitoring information of the intraocular pressure sensor and the acceleration sensor. An electrode layer is arranged inside the nose bridge rod. The light sensor and the electrode layer are both electrically connected to the microprocessor through circuits. The micro lithium battery is connected to the light sensor, the microprocessor, the intraocular pressure sensor, the acceleration sensor, the controller and the electrode layer through circuits to provide power. The lens includes a substrate. A wear-resistant layer is arranged on the outer surface of the substrate. A nano-coating is arranged on the outer surface of the wear-resistant layer. A filter layer, an antireflection film layer and a liquid crystal dimming layer are sequentially arranged on the inner surface of the substrate.

[0008] Preferably, a support rod is fixedly connected to the bottom of the lens rim rod. One end of the lens rim rod is fixedly connected with a connecting rod, and one end of the connecting rod is rotatably connected with a nose pad, and a silica gel pad is arranged on the outside of the nose pad.

[0009] Preferably, a connecting end head is fixedly connected to one end of the hinge. One end of the temple arm is fixedly connected with a rotating rod, and a silica gel sleeve is fixedly connected to the other end of the temple arm. The two ends of the rotating rod are rotatably connected with the two ends of the connecting end head.

[0010] Preferably, the preparation process of the lens includes the following steps:

[0011] S1. Using bisphenol A epoxy resin and thiourea as raw materials, prepare episulfide resin, and then mix the episulfide resin with bisphenol A epoxy resin in a certain proportion to prepare an episulfide and epoxy mixed resin, and use the episulfide and epoxy mixed resin as an optical resin material;

[0012] S2. Using 2-hydroxy-4-methoxybenzophenone as a carbon source and ethylenediamine as a nitrogen source, synthesize oil-soluble nitrogen-doped carbon dots by a hydrothermal method, and compound the carbon dots with polymethyl methacrylate to obtain a composite material;

[0013] S3. Using UV-329 ultraviolet absorber, HALS light stabilizer, and the above-prepared optical resin material and composite material to prepare a substrate, and perform surface grinding and polishing on the substrate;

[0014] S4. Using SiO 2 、Ti 2 O 3 as raw materials, deposit a film layer composed of SiO 2 film and Ti 2 O 3 film on the surface of the above substrate through a vacuum coating process, that is, a filter layer;

[0015] S5. Using tetraethyl orthosilicate and hardening liquid as raw materials, prepare a silica antireflection film on the surface of the substrate by a sol-gel method, that is, an antireflection film layer;

[0016] S6. Using Ti 3 O 5 、SiO 2 as high and low refractive index materials, deposit an abrasion-resistant and scratch-resistant film on the outer layer of the substrate by electron beam heating evaporation and ion source assisted deposition of the film, that is, an abrasion-resistant layer, deposit a nanoscale film layer on the outer layer of the substrate using nano-zinc oxide as a raw material, that is, a nano-coating, and finally integrate the liquid crystal dimming layer on the inner layer of the substrate to obtain a lens;

[0017] S7. Perform spectral detection on the lens, and use a high-precision spectrometer to detect the filtering performance of the lens until the lens is qualified.

[0018] Preferably, in step S1, it includes the following steps:

[0019] S11. Add 20.0 g of bisphenol A epoxy resin and 50 mL of methanol to a three-necked flask equipped with a stirrer, stir at a constant temperature of 45 °C to completely dissolve the epoxy resin, dissolve 6.0 g of thiourea in 70 mL of methanol, and dropwise add it to the three-necked flask drop by drop, controlling the dropping speed to avoid large temperature fluctuations, finish dropping within 30 min, then continue to react at this temperature for 3.5 h, and then recover the solvent under reduced pressure;

[0020] S12. Dissolve the above product in 55 mL of chloroform, then transfer the solution into a separatory funnel containing 35 mL of water, shake, wash, and let it stand for liquid separation. Take the lower-layer mixture, dry it with granular anhydrous copper sulfate to obtain a colorless to light yellow transparent viscous liquid. Let it stand at room temperature for 3 - 5 days. When light yellow crystals appear in the liquid, it is the episulfide resin.

[0021] S13. Stir and mix a certain proportion of bisphenol A epoxy resin and episulfide resin in a 50 °C water bath for 1 h to obtain a mixture. Use a vacuum oven to remove air bubbles. After cooling, transfer it to a plastic cup. Quickly add the curing agent and the mixture in a mass ratio of 1:5. Slowly stir the mixture with a glass rod. When the outer wall of the plastic cup is slightly hot to the touch, stop stirring and slowly pour it into a silicone mold. After curing at room temperature for 12 h, transfer it to a 60 °C oven and cure for 1 h to obtain the episulfide and epoxy mixed resin.

[0022] Preferably, in step S2, it includes the following steps:

[0023] S21. Dissolve 2-hydroxy-4-methoxybenzophenone and ethylenediamine in 60 mL of absolute ethanol, perform ultrasonic treatment for 13 min to completely dissolve 2-hydroxy-4-methoxybenzophenone and ethylenediamine in absolute ethanol, then put the mixture into a 100 mL reaction kettle and react at 200 °C for 6 h.

[0024] S22. After the reaction kettle cools to room temperature, filter the obtained solution through a 0.32 μm microporous membrane to remove large particulate insoluble matters, then add a large amount of deionized water to the filtrate to obtain a turbid liquid with a large amount of yellow precipitate.

[0025] S23. Centrifuge the above turbid liquid with a large amount of yellow precipitate at 10000 r / min for 10 min to obtain a yellow precipitate and a supernatant. Wash the yellow precipitate with deionized water 2 - 4 times, and finally put the washed yellow precipitate into a freeze dryer to obtain a dry yellow powder, thus preparing the oil-soluble nitrogen-doped carbon dots.

[0026] S24. Dissolve a certain amount of oil-soluble nitrogen-doped carbon dots and polymethyl methacrylate in dichloromethane solvent, seal it with plastic wrap and pierce 3 - 5 holes in the plastic wrap, perform ultrasonic treatment in an ultrasonic instrument for 30 min, pour it into a glass mold, and then dry it at room temperature for 3 days to prepare the composite material.

[0027] Preferably, in step S3, it includes the following steps:

[0028] S31. Add a certain amount of optical resin, UV-329 ultraviolet absorber, HALS light stabilizer, and the above-prepared optical resin material and composite material into a reactor with stirring. After mixing them evenly and filtering through a filter membrane, degas for a certain time at normal temperature and a pressure less than 2 kPa, and then restore normal pressure.

[0029] S32. Control the oven to heat up from normal temperature to 115°C ± 5°C and maintain for a certain time. After drying the above materials, inject them into a mold at high temperature for molding. Then, after cooling and demolding, a substrate can be obtained, and the surface of the substrate is polished.

[0030] Preferably, in step S4, using SiO 2 、Ti 2 O 3 as raw materials, using TFCalc film system design software, coat a film on the surface of the substrate through a vacuum coating process. The first layer is a SiO 2 film, the second layer is a Ti 2 O 3 film, the third layer is a SiO 2 film, forming a cycle, and stacking such cycles up to 30 layers. Control the thickness of each film layer and the matching interlayer structure, so as to coat a film layer composed of 30 film layers on the surface of the substrate, that is, a filter layer.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] 1. In the present invention, through the real-time monitoring of the light sensor and the rapid processing of the microprocessor, the glasses can automatically and quickly adjust the light transmittance and optical properties of the lenses according to the changes in the external light environment, enabling the wearer to obtain a comfortable visual experience in different light environments without manual operation, avoiding the situation of strong light being dazzling or unclear vision. At the same time, the acceleration sensor is used to detect the user's motion state, and the intraocular pressure sensor is used to monitor the eye health of the wearer. The acceleration sensor and the intraocular pressure sensor work together. The controller is used to receive the monitoring information of the intraocular pressure sensor and the acceleration sensor. The wearer can wirelessly connect the smartphone to the controller, thereby receiving the monitoring information of the intraocular pressure sensor and the acceleration sensor, enabling the wearer to comprehensively perceive the environment and their own physical condition.

[0033] 2. The lens is prepared by the preparation method of the present invention, so that the lens can not only achieve full absorption of ultraviolet light and short-wave blue light, with a higher shielding efficiency of 99.6%, but also achieve a very high transmittance in the visible light region. Thus, the whole lens can not only meet the full shielding of short-wavelength blue light, reduce the harm of short-wave blue light and ultraviolet light to the human eye, but also maintain a high transmittance for long-wavelength blue light and visible light, retain the beneficial effects of light on the human body. At the same time, a substrate is prepared by using a UV-329 ultraviolet absorber, a HALS light stabilizer, and the above-prepared optical resin material and composite material, and then SiO 2 、Ti 2 O 3 are used as raw materials, and a film layer composed of SiO 2 film and Ti 2 O 3 film is deposited on the surface of the above substrate through a vacuum coating process, that is, a filter layer. By using the dual anti-blue light technology of "film layer reflection + substrate absorption" and integrating the advantages of the above two technologies, it is possible to simultaneously achieve a low transmittance of harmful blue light (wavelength 308 - 420nm and 420 - 455nm) and a high transmittance of beneficial blue light (455 - 480nm). While allowing beneficial blue-green light to pass through the eyes, it can prevent the eyes from being invaded by harmful blue light that can cause macular degeneration and cataracts, solving the defect that traditional high-barrier blue light protection products cannot simultaneously achieve high barrier of harmful blue light and high transmittance of beneficial blue light, with large color difference and poor wearing comfort. It has dual means and dual-effect protection, can not only ensure a high barrier rate of harmful blue light but also make the lens clear and transparent, that is, can ensure a high transmittance of beneficial blue light. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of a pair of glasses for filtering harmful spectra according to the present invention;

[0035] Figure 2 is a top view structural diagram of a pair of glasses for filtering harmful spectra according to the present invention;

[0036] Figure 3 is a detailed enlarged view of part A in Figure 2 of a pair of glasses for filtering harmful spectra according to the present invention;

[0037] Figure 4 is a schematic diagram of the separated state of the lens and the frame of a pair of glasses for filtering harmful spectra according to the present invention;

[0038] Figure 5 is a detailed enlarged view of part B in Figure 4 of a pair of glasses for filtering harmful spectra according to the present invention;

[0039] Figure 6 is a top view of a pair of glasses for filtering harmful spectra according to the present invention;

[0040] Figure 7 For the Figure 6 detailed enlarged view of part C in a pair of glasses for filtering harmful spectra according to the present invention;

[0041] Figure 8 For the Figure 6 detailed enlarged view of part D in a pair of glasses for filtering harmful spectra according to the present invention;

[0042] Figure 9 Schematic diagram of the layered structure of the lens of a pair of glasses for filtering harmful spectra according to the present invention;

[0043] Figure 10 Flow chart for preparing the lens of a pair of glasses for filtering harmful spectra according to the present invention.

[0044] In the figure: 1, lens; 2, frame; 11, substrate; 12, wear-resistant layer; 13, nano-coating; 14, filtering layer; 15, anti-reflection film layer; 16, liquid crystal dimming layer; 21, nose bridge rod; 22, lens rim rod; 23, hinge; 24, protective shell I; 25, protective shell II; 26, temple; 27, silicone sleeve; 28, charging port; 29, flashing light; 210, connecting end; 211, rotating rod; 212, supporting rod; 213, connecting rod; 214, nose pad; 215, silicone pad; 216, electrode layer; 217, intraocular pressure sensor; 218, acceleration sensor; 219, micro lithium battery; 220, micro power manager; 221, light sensor; 222, microprocessor; 223, controller. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] Example 1: Refer to Figures 1 - 9As shown: A pair of glasses for filtering harmful spectra, comprising a frame 2 and two symmetrically arranged lenses 1. The frame 2 includes a bridge bar 21, two rim bars 22 and two temple arms 26. The two rim bars 22 are symmetrically fixed at both ends of the bridge bar 21. One end of each of the two rim bars 22 is fixedly connected to a hinge 23. The two temple arms 26 are symmetrically rotatably mounted at one end of the two hinges 23. The two lenses 1 are symmetrically mounted at the bottom of the two rim bars 22. One of the hinges 23 is fixedly connected to a first protective shell 24 on the outside, and the other hinge 23 is fixedly connected to a second protective shell 25 on the outside. One end inside the first protective shell 24 is fixedly connected to an intraocular pressure sensor 217, and the other end inside the first protective shell 24 is fixedly connected to an acceleration sensor 218. One end outside the second protective shell 25 is fixedly connected to a flashing light 29, and a charging port 28 is provided on the outside of one end of the second protective shell 25. One end inside the second protective shell 25 is fixedly connected to a micro lithium battery 219, and the other end inside the second protective shell 25 is fixedly connected to a microprocessor 222. One end of the micro lithium battery 219 is provided with a micro power manager 220, and the other end of the micro lithium battery 219 is fixedly connected to a light sensor 221. A controller 223 is provided inside the second protective shell 25. The controller 223 is used to receive the monitoring information of the intraocular pressure sensor 217 and the acceleration sensor 218. An electrode layer 216 is provided inside the bridge bar 21. The light sensor 221 and the electrode layer 216 are both electrically connected to the microprocessor 222 through wires. The micro lithium battery 219 is connected to the light sensor 221, the microprocessor 222, the intraocular pressure sensor 217, the acceleration sensor 218, the controller 223 and the electrode layer 216 through wires to provide power. The lens 1 includes a substrate 11. The outer surface of the substrate 11 is provided with an abrasion-resistant layer 12. The outer surface of the abrasion-resistant layer 12 is provided with a nano-coating 13. The inner surface of the substrate 11 is sequentially provided with a filtering layer 14, an antireflection film layer 15 and a liquid crystal dimming layer 16. The bottom of the rim bar 22 is fixedly connected to a support bar 212. One end of the rim bar 22 is fixedly connected to a connecting rod 213, and one end of the connecting rod 213 is rotatably connected to a nose pad 214. A silica gel pad 215 is provided on the outside of the nose pad 214. One end of the hinge 23 is fixedly connected to a connecting end 210. One end of the temple arm 26 is fixedly connected to a rotating rod 211, and the other end of the temple arm 26 is fixedly connected to a silica gel sleeve 27. The two ends of the rotating rod 211 are rotatably connected to the two ends of the connecting end 210.

[0047] In this embodiment, through the real-time monitoring of the optical sensor 221 and the rapid processing of the microprocessor 222, the glasses can automatically and rapidly adjust the light transmittance and optical properties of the lenses according to the changes in the external light environment, enabling the wearer to obtain a comfortable visual experience in different light environments without manual operation, avoiding the situations of overly strong and dazzling light or unclear vision, meeting the dual requirements of the wearer for vision correction and comfortable visual experience in different light environments, and having strong multi-functional applicability. At the same time, the acceleration sensor 218 is used to detect the motion state of the user, such as walking, running, standing still, etc., and the intraocular pressure sensor 217 is used to monitor the eye health of the wearer. The acceleration sensor 218 and the intraocular pressure sensor 217 work together. The controller 223 is used to receive the monitoring information of the intraocular pressure sensor 217 and the acceleration sensor 218. The wearer can wirelessly connect the smartphone to the controller 223 to receive the monitoring information of the intraocular pressure sensor 217 and the acceleration sensor 218, enabling the wearer to comprehensively perceive the environment where they are and their own physical condition.

[0048] Embodiment 2: Figure 1 、 Figure 9 and Figure 10 As shown in, the preparation process of the lens 1 includes the following steps:

[0049] S1. Using bisphenol A epoxy resin and thiourea as raw materials, prepare episulfide resin, and then mix the episulfide resin with bisphenol A epoxy resin in a certain proportion to prepare an episulfide and epoxy mixed resin, and use the episulfide and epoxy mixed resin as an optical resin material, including the following steps:

[0050] S11. Add 20.0 g of bisphenol A epoxy resin and 50 mL of methanol to a three-necked flask equipped with a stirrer, stir at a constant temperature of 45 °C until the epoxy resin is completely dissolved. Dissolve 6.0 g of thiourea in 70 mL of methanol, and gradually add it dropwise to the three-necked flask, controlling the dropping rate to avoid large fluctuations in temperature. Finish dropping within 30 min, and then continue to react at this temperature for 3.5 h, and then recover the solvent under reduced pressure;

[0051] S12. Dissolve the above product in 55 mL of chloroform, transfer the solution to a separatory funnel containing 35 mL of water, shake, wash, and let it stand for layering. Take the lower-layer mixed solution, dry it with granular anhydrous copper sulfate to obtain a colorless to light yellow transparent viscous liquid, and let it stand at room temperature for 3 - 5 d. When light yellow crystals appear in the liquid, it is episulfide resin;

[0052] S13. Mix a certain proportion of bisphenol A epoxy resin and cycloaliphatic epoxy resin in a 50 °C water bath with stirring for 1 h to obtain a mixture. Remove the bubbles using a vacuum oven, transfer it to a plastic cup after cooling, quickly add the curing agent to the mixture at a mass ratio of 1:5, slowly stir the mixture with a glass rod. When the outer wall of the plastic cup is slightly hot to the touch, stop stirring and slowly pour it into a silicone mold. After curing at room temperature for 12 h, transfer it to an oven at 60 °C and cure for 1 h to obtain a cycloaliphatic epoxy and epoxy resin mixture;

[0053] S2. Using 2-hydroxy-4-methoxybenzophenone as the carbon source and ethylenediamine as the nitrogen source, synthesize oil-soluble nitrogen-doped carbon dots by a hydrothermal method, and compound the carbon dots with polymethyl methacrylate to obtain a composite material, including the following steps:

[0054] S21. Dissolve 2-hydroxy-4-methoxybenzophenone and ethylenediamine in 60 mL of absolute ethanol, ultrasonically treat for 13 min to completely dissolve 2-hydroxy-4-methoxybenzophenone and ethylenediamine in absolute ethanol, then put the mixture into a 100 mL reaction kettle and react at 200 °C for 6 h;

[0055] S22. After the reaction kettle cools to room temperature, filter the obtained solution through a 0.32 μm microporous filter membrane to remove large particulate insoluble matter, and then add a large amount of deionized water to the filtrate to obtain a turbid liquid with a large amount of yellow precipitate;

[0056] S23. Centrifuge the above turbid liquid with a large amount of yellow precipitate at 10000 r / min for 10 min to obtain a yellow precipitate and supernatant. Wash the yellow precipitate with deionized water 2 - 4 times, and finally put the washed yellow precipitate into a freeze dryer to obtain a dry yellow powder, thus preparing oil-soluble nitrogen-doped carbon dots;

[0057] S24. Dissolve a certain amount of oil-soluble nitrogen-doped carbon dots and polymethyl methacrylate in dichloromethane solvent, seal it with plastic wrap and pierce 3 - 5 holes in the plastic wrap, ultrasonically treat in an ultrasonic instrument for 30 min, pour it into a glass mold, and then dry it at room temperature for 3 d to obtain a composite material;

[0058] S3. Use UV-329 ultraviolet absorber, HALS light stabilizer, and the above-prepared optical resin material and composite material to prepare substrate 11, and perform surface grinding and polishing on substrate 11, including the following steps:

[0059] S31. Add a certain amount of optical resin, UV-329 ultraviolet absorber, HALS light stabilizer, and the above-prepared optical resin material and composite material into a reactor with stirring, mix them evenly and filter through a filter membrane, then degas for a certain time at normal temperature and a pressure less than 2 kPa, and then restore to normal pressure;

[0060] S32. Control the oven to heat up from room temperature to 115°C ± 5°C and maintain for a certain period of time. After drying the above materials, inject them into the mold by high-temperature injection molding to form. Then, after cooling and demolding, the substrate 11 can be obtained, and the surface of the substrate 11 is polished and buffed;

[0061] S4. Using SiO 2 and Ti 2 O 3 as raw materials, deposit a film layer composed of SiO 2 film and Ti 2 O 3 film on the surface of the above substrate 11 through a vacuum coating process, that is, the filter layer 14;

[0062] Among them, using SiO 2 and Ti 2 O 3 as raw materials, using TFCalc film system design software, deposit a film on the surface of the substrate 11 through a vacuum coating process. The first layer is SiO 2 film, the second layer is Ti 2 O 3 film, the third layer is SiO 2 film, forming a cycle, and stacking such cycles up to 30 layers. Control the thickness of each film layer and the matching interlayer structure, so as to deposit a film layer composed of 30 film layers on the surface of the substrate 11, that is, the filter layer 14;

[0063] S5. Using tetraethyl orthosilicate and hardening solution as raw materials, prepare a silica antireflection film on the surface of the substrate 11 through the sol-gel method, that is, the antireflection film layer 15;

[0064] S6. Using Ti 3 O 5 and SiO 2 as high and low refractive index materials, deposit an abrasion-resistant and scratch-resistant film on the outer layer of the substrate 11 through electron beam heating evaporation and ion source assisted deposition of the film. Use nano-zinc oxide as raw materials to deposit a nano-scale film layer on the outer layer of the substrate 11, that is, the nano-coating 13. Finally, integrate the liquid crystal dimming layer 16 on the inner layer of the substrate 11 to obtain the lens 1;

[0065] S7. Conduct spectral detection on the lens 1, and use a high-precision spectrometer to detect the filtering performance of the lens until the lens 1 is qualified.

[0066] In this embodiment, the lens 1 is composed of a substrate 11, a wear-resistant layer 12, a nano-coating 13, a filtering layer 14, an anti-reflection film layer 15, and a liquid crystal dimming layer 16. By using the preparation method of the present invention to prepare the lens 1, the lens 1 can not only achieve full absorption of ultraviolet light and short-wave blue light, with a higher shielding efficiency of 99.6%, but also achieve an extremely high transmittance (99.5%) in the visible light region. Thus, the overall lens 1 can not only meet the full shielding of short-wavelength blue light, reduce the harm of short-wave blue light and ultraviolet light to the human eye, but also maintain a high transmittance for long-wavelength blue light and visible light, retaining the beneficial effects of light on the human body. At the same time, a UV-329 ultraviolet absorber, a HALS light stabilizer, and the above-prepared optical resin material and composite material are used to prepare the substrate 11, and the surface of the substrate 11 is polished and buffed; then, using SiO 2 , Ti 2 O 3 as raw materials, a film layer composed of a SiO 2 film and a Ti 2 O 3 film is deposited on the surface of the above substrate 11 through a vacuum coating process, that is, the filtering layer 14; by using the dual blue light prevention technology of "film layer reflection + substrate absorption" and integrating the advantages of the above two technologies, a low transmittance of harmful blue light (wavelengths 308 - 420 nm and 420 - 455 nm) and a high transmittance of beneficial blue light (455 - 480 nm) can be achieved simultaneously. While allowing beneficial blue and green light to pass through the eyes, it can also prevent the eyes from being invaded by harmful blue light that can cause macular degeneration and cataracts, solving the defect that traditional high-barrier blue light protection products cannot simultaneously achieve high barrier of harmful blue light and high transmittance of beneficial blue light, with large color difference and poor wearing comfort. It combines dual means and dual effects of protection, can not only ensure a high barrier rate (low transmittance) of harmful blue light but also make the lens clear and transparent, that is, can ensure a high transmittance of beneficial blue light.

[0067] Usage method and working principle of this device: The structure of this pair of glasses consists of a frame 2 and two symmetrically arranged lenses 1. The overall frame of the frame 2 is made of lightweight and high-strength titanium alloy material, which not only ensures the firmness of the frame but also reduces the overall weight of the glasses, improving the wearing comfort. By adding a first protective shell 24 and a second protective shell 25 outside the two temple pieces 23, an intraocular pressure sensor 217 and an acceleration sensor 218 are installed in the first protective shell 24. One end of the second protective shell 25 is fixedly connected to a flashing light 29, and a charging port 28 is provided on the outside of one end of the second protective shell 25. A micro lithium battery 219, a microprocessor 222, a micro power manager 220, a light sensor 221, and a controller 223 are installed inside the second protective shell 25. The controller 223 is used to receive the monitoring information of the intraocular pressure sensor 217 and the acceleration sensor 218. An electrode layer 216 is provided inside the nose bridge rod 21. The light sensor 221 and the electrode layer 216 are both electrically connected to the microprocessor 222 through circuits. The micro lithium battery 219 is connected to the light sensor 221, the microprocessor 222, the intraocular pressure sensor 217, the acceleration sensor 218, the controller 223, and the electrode layer 216 through circuits to provide power. The intelligent micro power manager 220 can monitor the power of the micro lithium battery 219 in real time and remind the wearer to charge in time through the flashing light 29 when the power is insufficient;

[0068] When in use, inserting the charger end into the charging port 28 can charge the micro lithium battery 219. This pair of glasses is equipped with an adaptive dimming system, which consists of a light sensor 221, a microprocessor 222, an electrode layer 216, and a liquid crystal dimming layer 16. The light sensor 221 can monitor the external light intensity and spectral distribution in real time. When it detects a change in light intensity or an increase in the proportion of harmful spectra, the light sensor 221 transmits the signal to the microprocessor 222. The microprocessor 222 processes the signal according to a preset algorithm. At the same time, the electrode layer 216 is connected to the microprocessor 222 and is used to apply an electric field to the liquid crystal dimming material to control the light transmittance of the lens, thereby controlling the light transmittance and light filtering characteristics of the liquid crystal dimming layer 16 (the liquid crystal dimming layer 16 is made of a special liquid crystal dimming material. This liquid crystal dimming material has a certain initial light transmittance when no electric field is applied. When it receives the control signal sent by the microprocessor 222, it can adjust the light transmittance by changing the arrangement of its liquid crystal molecules. In a strong light environment, the liquid crystal dimming layer 16 will automatically reduce the light transmittance and at the same time enhance the filtering intensity of harmful spectra. In a weak light environment, the liquid crystal dimming layer 16 will appropriately increase the light transmittance to ensure that the wearer can see clearly, achieving the effective protection of the eyes and good visual effects in different lighting environments); through the real-time monitoring of the light sensor 221 and the rapid processing of the microprocessor 222, the glasses can automatically adjust the light transmittance and optical characteristics of the lens according to the changes in the external lighting environment, enabling the wearer to obtain a comfortable visual experience in different lighting environments without manual operation, avoiding the situation of strong light being dazzling or unclear vision, meeting the dual needs of the wearer for vision correction and comfortable visual experience in different lighting environments, and having strong multi-functional applicability;

[0069] At the same time, the acceleration sensor 218 is used to detect the user's motion state, such as walking, running, standing still, etc., and the intraocular pressure sensor 217 is used to monitor the eye health of the wearer. The acceleration sensor 218 and the intraocular pressure sensor 217 work together. The controller 223 is used to receive the monitoring information of the intraocular pressure sensor 217 and the acceleration sensor 218. The wearer can wirelessly connect the smartphone to the controller 223 to receive the monitoring information of the intraocular pressure sensor 217 and the acceleration sensor 218, enabling the wearer to comprehensively perceive the environment and their own physical condition; in addition, a silica gel pad 215 is arranged on the outer side of the nose pad 214, and a silica gel sleeve 27 is arranged at one end of the temple 26. The soft silica gel pad 215 and silica gel sleeve 27 can closely fit the facial skin, playing a buffering role, preventing the frame from causing a sense of compression on the face, and at the same time can also block the harmful spectra in the side light to a certain extent from entering the eyes;

[0070] The lens 1 is composed of a substrate 11, a wear-resistant layer 12, a nano-coating layer 13, a filtering layer 14, an anti-reflection film layer 15, and a liquid crystal dimming layer 16. The lens 1 is prepared by the preparation method of the present invention. Using bisphenol A epoxy resin and thiourea as raw materials, episulfide resin is prepared. Then, the episulfide resin and bisphenol A epoxy resin are mixed in a certain proportion to prepare an episulfide and epoxy mixed resin. The episulfide and epoxy mixed resin is used as an optical resin material. When the proportion of epoxy resin and episulfide resin is appropriate, when m(episulfide resin)∶m(epoxy resin)>1∶5, its mechanical properties can be enhanced. The mixed resin can form an interpenetrating network structure, thereby improving the overall mechanical properties of the optical resin material. Using 2-hydroxy-4-methoxybenzophenone as the carbon source and ethylenediamine as the nitrogen source, oil-soluble nitrogen-doped carbon dots are synthesized by a hydrothermal method. The carbon dots and polymethyl methacrylate are compounded to obtain a composite material. The oil-soluble nitrogen-doped carbon dots have excellent ultraviolet absorption properties. When the mass fraction of the oil-soluble nitrogen-doped carbon dots is only 1%, full absorption in the ultraviolet light region can be achieved. The carbon dots and polymethyl methacrylate are compounded to obtain a composite material. The composite material can not only achieve full ultraviolet absorption but also maintain high transparency in the visible light region, overcoming the problems of narrow application range, poor absorption performance, dark color of the composite material, and low visible light transparency of the oil-soluble nitrogen-doped carbon dots. It can not only achieve full absorption of ultraviolet light and short-wave blue light, with a higher shielding efficiency of 99.6%, but also achieve a high transmittance (99.5%) in the visible light region. Thus, the whole lens 1 can not only meet the full shielding of short-wavelength blue light, reduce the harm of short-wave blue light and ultraviolet light to the human eye, but also maintain a high transmittance for long-wavelength blue light and visible light, retaining the beneficial effects of light on the human body;

[0071] Using UV-329 ultraviolet absorber, HALS light stabilizer, and the above-prepared optical resin material and composite material to prepare the substrate 11, and performing surface grinding and polishing treatment on the substrate 11; then using SiO 2 、Ti 2 O 3 as raw materials, coating a SiO 2 film and Ti 2 O 3A film layer composed of a thin film, namely the filter layer 14; by using the dual blue light prevention technology of "film layer reflection + substrate absorption", integrating the advantages of the above two technologies, it can simultaneously achieve a low transmittance of harmful blue light (wavelength 308 - 420nm and 420 - 455nm) and a high transmittance of beneficial blue light (455 - 480nm). While allowing beneficial blue and green light to pass through the eyes, it can prevent the eyes from being damaged by harmful blue light that can cause macular degeneration and cataracts, solving the defect that traditional high-barrier blue light protection products cannot simultaneously achieve high barrier of harmful blue light and high transmittance of beneficial blue light, with large color difference and poor wearing comfort. It has dual means and dual effects of protection, which can not only ensure a high barrier rate (low transmittance) of harmful blue light but also make the lens clear and transparent, that is, it can ensure a high transmittance of beneficial blue light;

[0072] Using tetraethyl orthosilicate and hardening solution as raw materials, a silica antireflection film is prepared on the surface of the substrate 11 by the sol-gel method, namely the antireflection film layer 15; using Ti 3 O 5 、SiO 2 as high and low refractive index materials, a wear-resistant and scratch-resistant film is deposited on the outer layer of the substrate 11 by electron beam heating evaporation and ion source assisted deposition of the film, namely the wear-resistant layer 12. Using nano-zinc oxide as the raw material, a nano-scale film layer is deposited on the outer layer of the substrate 11, namely the nano-coating 13. Finally, the liquid crystal dimming layer 16 is integrated into the inner layer of the substrate 11 to obtain the lens 1; finally, the lens 1 is subjected to spectral detection, and a high-precision spectrometer is used to detect the filtering performance of the lens until the lens 1 is qualified.

[0073] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pair of glasses for filtering harmful light spectrum, comprising a frame (2) and two symmetrically arranged lenses (1), wherein the two lenses (1) are symmetrically mounted at the bottom of two lens ring rods (22), characterized in that: The outer side of one of the pile heads (23) is fixedly connected to a protective shell 1 (24), and the outer side of the other pile head (23) is fixedly connected to a protective shell 2 (25); one end of the interior of the protective shell 1 (24) is fixedly connected to an intraocular pressure sensor (217), and the other end of the interior of the protective shell 1 (24) is fixedly connected to an acceleration sensor (218); one end of the interior of the protective shell 2 (25) is fixedly connected to a micro lithium battery (219), and the other end of the interior of the protective shell 2 (25) is fixedly connected to a microprocessor (222); one end of the micro lithium battery (219) is provided with a micro power manager (220), and the other end of the micro lithium battery (219) is fixedly connected to a light sensor (221); a controller (223) is provided inside the protective shell 2 (25), and the controller (223) is used to receive intraocular pressure The invention relates to a lens (1) for detecting an optical sensor (217) and an acceleration sensor (218), wherein an electrode layer (216) is arranged inside the nose bridge (21), the optical sensor (221) and the electrode layer (216) are electrically connected to a microprocessor (222) through a circuit, and the micro lithium battery (219) is connected to the optical sensor (221), the microprocessor (222), the intraocular pressure sensor (217), the acceleration sensor (218), the controller (223) and the electrode layer (216) through a circuit for providing power. The lens (1) comprises a substrate (11), the outer surface of the substrate (11) is provided with a wear-resistant layer (12), the outer surface of the wear-resistant layer (12) is provided with a nano coating (13), and the inner surface of the substrate (11) is provided with a filter layer (14), an anti-reflection film layer (15) and a liquid crystal dimming layer (16) in sequence.

2. The glasses for filtering harmful light spectrum according to claim 1, characterized in that: The eyeglass frame (2) comprises a nose bridge bar (21), two eyeglass ring bars (22) and two eyeglass legs (26); the two eyeglass ring bars (22) are symmetrically fixed at two ends of the nose bridge bar (21); one end of the two eyeglass ring bars (22) is fixedly connected to a pile head (23); the two eyeglass legs (26) are symmetrically rotatably mounted on one end of the two pile heads (23); the bottom of the eyeglass ring bar (22) is fixedly connected to a supporting rod (212); one end of the eyeglass ring bar (22) is fixedly connected to a connecting rod (213); one end of the connecting rod (213) is rotatably connected to a supporting leaf (214); and a silicone pad (215) is arranged on the outer side of the supporting leaf (214).

3. The glasses for filtering harmful light spectrum according to claim 1, characterized in that: One end of the pile head (23) is fixedly connected to a connecting terminal (210), one end of the temple (26) is fixedly connected to a rotating rod (211), and the other end of the temple (26) is fixedly connected to a silicone sleeve (27), two ends of the rotating rod (211) are rotatably connected to two ends of the connecting terminal (210), one end of the second protective shell (25) is fixedly connected to a flashing light (29), and one end of the second protective shell (25) is provided with a charging port (28) on its outer side.

4. The glasses for filtering harmful light spectrum according to claim 1, characterized in that: The preparation process of the lens (1) comprises the following steps: S1, using bisphenol A epoxy resin and thiourea as raw materials to prepare episulfide resin, then mixing the episulfide resin with bisphenol A epoxy resin in a certain ratio to prepare episulfide and epoxy mixed resin, and using the episulfide and epoxy mixed resin as an optical resin material; S2, using 2-hydroxy-4-methoxybenzophenone as a carbon source and ethylenediamine as a nitrogen source, synthesizing oil-soluble nitrogen-doped carbon dots by a hydrothermal method, and compounding the carbon dots with polymethyl methacrylate to prepare a composite material; S3, using UV-329 ultraviolet absorber, HALS light stabilizer and the optical resin material and composite material prepared above to prepare a substrate (11), and performing surface grinding and polishing treatment on the substrate (11); S4, using SiO2 and Ti2O3 as raw materials, a film layer consisting of SiO2 thin film and Ti2O3 thin film is plated on the surface of the substrate (11) by vacuum coating process, i.e., filter layer (14); S5, using tetraethyl orthosilicate and hardening liquid as raw materials, preparing a silicon dioxide antireflection film, i.e., an antireflection film layer (15), on the surface of the substrate (11) by a sol-gel method; S6, using Ti3O5 and SiO2 as high and low refractive index materials, and depositing thin films by electron beam heating evaporation and ion source assisted deposition, a wear-resistant and scratch-resistant film, i.e., a wear-resistant layer (12), is plated on the outer layer of the substrate (11), and using nano zinc oxide as a raw material, a nano-scale film layer, i.e., a nano coating (13), is plated on the outer layer of the substrate (11), and finally a liquid crystal dimming layer (16) is integrated into the inner layer of the substrate (11) to obtain a lens (1); S7, performing spectral testing on the lens (1), using a high-precision spectrometer to test the filtering performance of the lens until the lens (1) is qualified.

5. The glasses for filtering harmful light spectrum according to claim 4, characterized in that: In step S1, the following steps are included: S11. Add 20.0 g of bisphenol A epoxy resin and 50 mL of methanol into a three-necked flask equipped with a stirrer, stir at a constant temperature of 45°C to completely dissolve the epoxy resin, dissolve 6.0 g of thiourea in 70 mL of methanol, and add dropwise to the three-necked flask, control the dropping speed to avoid large temperature fluctuations, and complete the dropping within 30 min. Then continue the reaction at this temperature for 3.5 h, and then recover the solvent under reduced pressure; S12, dissolve the above product with 55 mL of chloroform, transfer the solution into a separatory funnel filled with 35 mL of water, shake, wash, and stand for stratification, take the lower mixed liquid, and dry it with granular anhydrous copper sulfate to obtain a colorless to light yellow transparent viscous liquid. Leave it at room temperature for 3 to 5 days, and the liquid will have light yellow crystals, which is episulfide resin; S13. Stir and mix a certain proportion of bisphenol A epoxy resin and episulfide resin in a 50°C hot water bath for 1 hour to obtain a mixture, use a vacuum oven to remove bubbles, transfer to a plastic cup after cooling, quickly add the curing agent and the mixture in a mass ratio of 1:5, and slowly stir the mixture with a glass rod. When the outer wall of the plastic cup is slightly hot, stop stirring, slowly pour into a silicone mold, cure at room temperature for 12 hours, and then transfer to a 60°C oven for curing for 1 hour to obtain an episulfide and epoxy mixed resin.

6. The glasses for filtering harmful light spectrum according to claim 5, characterized in that: In step S2, the following steps are included: S21, dissolving 2-hydroxy-4-methoxybenzophenone and ethylenediamine in 60 mL of anhydrous ethanol, ultrasonically treating for 13 min to completely dissolve 2-hydroxy-4-methoxybenzophenone and ethylenediamine in anhydrous ethanol, and then placing the mixture in a 100 mL reactor and reacting at 200° C. for 6 h; S22, after the reaction kettle is cooled to room temperature, the obtained solution is filtered with a 0.32 μm microporous filter membrane to remove large particles of insoluble matter, and then a large amount of deionized water is added to the filtrate to obtain a turbid solution with a large amount of yellow precipitate; S23, separating the turbid liquid with a large amount of yellow precipitate using a centrifuge at 10000 r / min for 10 min to obtain a yellow precipitate and a supernatant, washing the yellow precipitate with deionized water for 2 to 4 times, and finally placing the washed yellow precipitate into a freeze dryer to obtain a dry yellow powder, thereby obtaining oil-soluble nitrogen-doped carbon dots; S24. A certain amount of oil-soluble nitrogen-doped carbon dots and polymethyl methacrylate were dissolved in a dichloromethane solvent, sealed with plastic wrap and 3 to 5 holes were poked in the plastic wrap, ultrasonically treated in an ultrasonicator for 30 minutes, poured into a glass mold, and then dried at room temperature for 3 days to obtain a composite material.

7. The glasses for filtering harmful light spectrum according to claim 6, characterized in that: In step S3, the following steps are included: S31, adding a certain amount of optical resin, UV-329 ultraviolet absorber, HALS light stabilizer and the optical resin material and composite material prepared above into a stirred reactor, mixing them evenly and filtering them through a filter membrane, degassing for a certain period of time at room temperature and a pressure less than 2 kPa, and then returning to normal pressure; S32, controlling the oven to heat up from room temperature to 115°C ± 5°C and maintaining it for a certain period of time, drying the above materials, and then high-temperature injection molding them into a mold, and then cooling and demolding to obtain a substrate (11), and performing surface grinding and polishing on the substrate (11).

8. The glasses for filtering harmful light spectrum according to claim 7, characterized in that: In step S4, SiO2 and Ti2O3 are used as raw materials, and TFCalc film system design software is used to coat the surface of the substrate (11) through a vacuum coating process, wherein the first layer is a SiO2 film, the second layer is a Ti2O3 film, and the third layer is a SiO2 film, forming a cycle, and the cycle is stacked up to 30 layers, controlling the thickness of each film layer and the matching interlayer structure, so that a film layer composed of 30 layers of thin films, namely the filter layer (14), is coated on the surface of the substrate (11).

Images