阅读说明：本技术 一种渐进色镀膜镜片生产方法 (Method for producing progressive color coated lens ) 是由 全仰珍 吴国强 于 2021-08-16 设计创作，主要内容包括：本发明属于光学镜片制备技术领域,公开了一种渐进色镀膜镜片生产方法,渐进色镀膜镜片生产方法包括预热烘干镜片表面水蒸气；利用真空计去控制真空泵的抽速,抽真空,充入氮气,通过控制气体流量控制器,控制充气压力,温度控制到一定温度并保温；镜片正面镀上第一层附着力层；镜片正面镀上12层膜系体系,高折射率镀层和低折射率镀层交替,设置镀膜设备参数,控制镜片固定台轨迹行程和控制电子抢转向轨迹行程,先镀两端等。本发明制备的渐进色镀膜镜片采用镀膜方式,镀上不规则厚度的反射层膜体系,通过吸收特定光线而显现不同颜色,该生产方式环保,产品不褪色,表面再经强化处理,使用寿命更长,品质更有保障。(The invention belongs to the technical field of optical lens preparation, and discloses a progressive coated lens production method, which comprises the steps of preheating and drying water vapor on the surface of a lens; controlling the pumping speed of a vacuum pump by using a vacuum gauge, vacuumizing, filling nitrogen, controlling the inflation pressure by controlling a gas flow controller, controlling the temperature to a certain temperature and preserving heat; plating a first adhesive layer on the front surface of the lens; the front surface of the lens is plated with 12 layers of film system systems, the high refractive index coating and the low refractive index coating are alternated, the parameters of the film plating equipment are set, the track stroke of a lens fixing table and the track stroke of electronic steering are controlled, and two ends are plated firstly. The progressive coated lens prepared by the invention adopts a coating mode, a reflecting layer film system with irregular thickness is coated, different colors are shown by absorbing specific light, the production mode is environment-friendly, the product does not fade, the surface is subjected to strengthening treatment, the service life is longer, and the quality is more guaranteed.)

1. A method for producing a progressive coated lens, the method comprising:

s101: preheating and drying water vapor on the surface of the lens;

s102: controlling the pumping speed of a vacuum pump by using a vacuum gauge, vacuumizing, filling nitrogen, controlling the inflation pressure by controlling a gas flow controller, controlling the temperature to a certain temperature and preserving heat;

s103: plating a first adhesive layer on the front surface of the lens;

s104: plating 12 layers of film system systems on the front surface of the lens, alternately plating a high refractive index coating and a low refractive index coating, setting parameters of a film plating device, controlling the track stroke of a lens fixing table and controlling the track stroke of electronic steering, and plating two ends firstly;

s105: the middle part of the front surface of the lens is downwards and upwards, the first layer is plated with a high-refractive-index coating, the second layer is plated with a low-refractive-index coating, the lengths of the high-refractive-index coating and the low-refractive-index coating are alternately increased in a parabolic increasing mode;

s106: cleaning the plated lens by ultrasonic equipment, and drying by baking equipment;

s107: sending the cleaned and dried lens into an intensified hardening automatic production line, carrying out intensified treatment on the surface of the lens in a hardening liquid soaking mode, and drying to obtain a progressive coated lens;

s108: the lenses were tested for light transmittance.

2. The method for producing progressive coated lenses according to claim 1, wherein the drying temperature of the preheating drying water vapor in S101 is 50-80 ℃, and the baking is performed for about 10min, so that the water vapor on the lens surface is completely removed.

3. The method of claim 1, wherein in step S102, a vacuum gauge is used to control the pumping speed of the vacuum pump, and the vacuum is pumped when the pressure is lower than 2 x 10²When Pa, filling nitrogen, controlling the filling pressure to be 1.5 multiplied by 10 by controlling the gas flow controller^-1The temperature is raised to about 80 ℃ by about Torr, and the temperature is kept constant.

4. The method of claim 1, wherein the first adhesion layer in S103 is formed of SiO, the coating speed is controlled to be about 0.15 nm/S, and the coating thickness is controlled to be 9-15 nm.

5. The method of claim 1, wherein the high refractive index coating and the low refractive index coating are alternated in step S104, and the high refractive index coating is 100% TiO₂ZrO2, SiO or Ti₃O₅The low refractive index coating material is 100% of MgF₂、SiO₂Or Na₃AlF₆Any of (1) is provided with a platingFilm equipment parameters, control lens fixed station track stroke and control electron snatch to turn to the track stroke, plate both ends earlier, from bottom to top, the first layer plates low refractive index cladding material, the second layer plates high refractive index cladding material, high low refractive index cladding material is the parabola type in turn and decreases progressively cladding material length, cladding material speed control is about 0.15 nm/s, every cladding material thickness control is 9-15 nm.

6. The method of claim 1, wherein in step S105, the intermediate coating, the lower coating and the upper coating are applied, the first coating is applied with the high refractive index coating, the second coating is applied with the low refractive index coating, the lengths of the high and low refractive index coatings are alternately increased, and the lengths are increased in a parabolic manner; the first high refractive index coating layer is coated at a speed of about 0.1nm/s to obtain a coating layer with a thickness of 4.5-7.5 nm, and the second high refractive index coating layer is coated at a speed of about 0.15 nm/s to obtain a coating layer with a thickness of 9-15 nm.

7. The method of claim 1, wherein in step S106, the coated lens is cleaned by ultrasonic equipment for 10min and dried by baking equipment for about 8 h.

8. The method of claim 1, wherein in step S107, the cleaned and dried lens is sent to an intensified hardened automatic production line, and the lens is dipped in a hardening liquid which is methyl transparent silicone resin for about 15min, and then baked at about 95 ℃ for about 2.5 h to obtain a lens with progressive coating.

9. The method of claim 1, wherein in step S108, the light transmittance test of the lens requires: according to American standard ANSI Z80.32018, the comprehensive light transmittance is 8-40%, the red light wavelength is not less than 8% from 620 to 750nm, the yellow light wavelength is not less than 6% from 570 to 590nm, and the green light wavelength is not less than 6% from 495 to 570 nm; according to the technical indexes of the parts below the tested lens, the comprehensive light transmittance of the upper end part of the lens is 20.63 percent, wherein the red light transmittance is 29.45 percent, the yellow light transmittance is 25.15 percent, and the green light transmittance is 17.22 percent; the comprehensive light transmittance of the middle end part of the lens is 12.08%, wherein the red light transmittance is 19.65%, the yellow light transmittance is 13.44%, and the green light transmittance is 10.84%; the comprehensive light transmittance of the lower end part of the lens is 10.30%, wherein the red light transmittance is 30.78%, the yellow light transmittance is 15.08%, and the green light transmittance is 6.84%.

10. The invention also includes progressive coated lenses made by the method set forth in the preceding claims.

Technical Field

The invention belongs to the technical field of optical lens preparation, and particularly relates to a progressive coated lens production method.

Background

At present, colored lenses have three main functions: 1. reducing the transmittance of visible light; 2. cosmetic decoration; 3. the damage of harmful light to the glasses is blocked. In addition to being fashionable and cool, wearing colored lens products is also the most important protection function.

Dyeing is a process based on molded lenses: the dye is dispersed into the dyeing liquid according to a certain proportion, the lens is immersed into the dyeing liquid at a certain speed and frequency by a dyeing device, and the dye gradually penetrates into the lens substrate to darken the lens.

In our daily life, in addition to sunlight and ultraviolet rays, irregular diffuse reflection light, commonly called "glare", is generated when light passes through rough road surfaces, water surfaces and other places. The appearance of glare can cause discomfort to the human eye, produce fatigue, and affect the clarity of the visual objects.

The existing common dyeing mirror can only reduce the intensity of light and cannot effectively remove the light reflection of a bright surface and the glare of all directions.

Purchasing inferior dyed lenses causes unnecessary damage to the wearer's eyeglasses. The incorrect wearing mode of the dyed lens directly influences the definition and contrast of a wearer when watching a scene, and increases discomfort and fatigue to eyes during wearing.

There is another method of producing a tinted lens comprising: the color powder or color master batch (plastic particles containing the color powder) is evenly mixed into resin and is formed by injection molding. The process can only manufacture single-color lenses or mixed-color lenses and cannot manufacture progressive lenses according to the requirements of customers.

The difficulty in solving the above problems and defects is:

the dyed lenses on the market at present have uneven product quality, easy decolorization and short service life, and the decolorized lenses are easy to cause harm to the health; the colored lens formed by direct injection molding has limited product types, and the products such as progressive lens and the like cannot be customized according to the new trend of customers.

The significance of solving the problems and the defects is as follows:

the production method is environment-friendly, the product does not fade, the surface is subjected to strengthening treatment, the service life is longer, and the quality is more guaranteed.

Compared with a pure-color dyed lens, the gradually-changed dyed lens has color depth distribution from deep to light from top to bottom, which is similar to the gradually-changed lens commonly used in wind-light photography, and aims to achieve the visual perception of balanced brightness from sky to ground in the visual field when the lens is worn outdoors. The interference of reflected light irradiated by sunlight on a wet road surface, snow, water or a metal surface can be reduced, and the multi-base color LED street lamp also has multiple base colors to improve the visual field contrast and the color feeling.

The effect of progressive color: the lens product can block strong sunlight when being worn outdoors and can be used indoors or in places with weak light in a vehicle. The light color progressive glasses are more beautiful and elegant to wear.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a method for producing a progressive coated lens.

The invention is realized in this way, a method for producing progressive coated lenses, comprising:

s101: preheating and drying water vapor on the surface of the lens;

s102: controlling the pumping speed of a vacuum pump by using a vacuum gauge, vacuumizing, filling nitrogen, controlling the inflation pressure by controlling a gas flow controller, controlling the temperature to a certain temperature and preserving heat;

s103: plating a first adhesive layer on the front surface of the lens;

s104: plating 12 layers of film system systems on the front surface of the lens, alternately plating a high refractive index coating and a low refractive index coating, setting parameters of a film plating device, controlling the track stroke of a lens fixing table and controlling the track stroke of electronic steering, and plating two ends firstly;

s105: the middle part of the front surface of the lens is downwards and upwards, the first layer is plated with a high-refractive-index coating, the second layer is plated with a low-refractive-index coating, the lengths of the high-refractive-index coating and the low-refractive-index coating are alternately increased in a parabolic increasing mode;

s106: cleaning the plated lens by ultrasonic equipment, and drying by baking equipment;

s107: sending the cleaned and dried lens into an intensified hardening automatic production line, carrying out intensified treatment on the surface of the lens in a hardening liquid soaking mode, and drying to obtain a progressive coated lens;

s108: the lenses were tested for light transmittance.

Further, in the step S101, the drying temperature of the preheating drying water vapor is 50-80 ℃, the baking is carried out for about 10min, and the water vapor on the surface of the lens is completely removed.

Further, in the step S102, a vacuum gauge is used to control the pumping speed of the vacuum pump, and the vacuum is pumped when the pressure is lower than 2 × 10²When Pa, filling nitrogen, controlling the filling pressure to be 1.5 multiplied by 10 by controlling the gas flow controller^-1The temperature is raised to about 80 ℃ by about Torr, and the temperature is kept constant.

Further, in the first adhesion layer in S103, the plating material is SiO, the plating speed is controlled at about 0.15 nm/S, and the plating thickness is controlled at 9-15 nm.

Further, the high-refractive-index coating and the low-refractive-index coating in the S104 are alternated, and the high-refractive-index coating is made of 100% TiO₂ZrO2, SiO or Ti₃O₅The low refractive index coating material is 100% of MgF₂、SiO₂Or Na₃AlF₆The method comprises the following steps of setting parameters of coating equipment, controlling track stroke of a lens fixing table and controlling track stroke of electronic steering, coating two ends firstly, coating down and up, coating a low-refractive-index coating on a first layer, coating a high-refractive-index coating on a second layer, alternately coating the high-refractive-index coating and the low-refractive-index coating in a parabolic manner, gradually decreasing the length of the coatings, controlling the coating speed to be about 0.15 nm/s, and controlling the thickness of each coating to be 9-15 nm.

Further, in S105, plating a middle layer, a lower layer and an upper layer, plating a high refractive index plating layer on the first layer, plating a low refractive index plating layer on the second layer, and alternately increasing the lengths of the plating layers by the high and low refractive index plating layers in a parabolic increasing manner; the first high refractive index coating layer is coated at a speed of about 0.1nm/s to obtain a coating layer with a thickness of 4.5-7.5 nm, and the second high refractive index coating layer is coated at a speed of about 0.15 nm/s to obtain a coating layer with a thickness of 9-15 nm.

Further, in S106, the plated lens is cleaned by an ultrasonic device for 10min, and dried by a baking device for about 8 h.

Further, in the step S107, the cleaned and dried lens is sent to an intensified hardening automatic production line, and the lens is soaked for about 15min in a hardening liquid which is methyl transparent organic silicon resin, and is baked for about 2.5 h at a temperature of about 95 ℃ to obtain the progressive coated lens.

Further, in S108, the light transmittance test requirement for the lens is as follows: according to American standard ANSI Z80.32018, the comprehensive light transmittance is 8-40%, the red light wavelength is not less than 8% from 620 to 750nm, the yellow light wavelength is not less than 6% from 570 to 590nm, and the green light wavelength is not less than 6% from 495 to 570 nm; according to the technical indexes of the parts below the tested lens, the comprehensive light transmittance of the upper end part of the lens is 20.63 percent, wherein the red light transmittance is 29.45 percent, the yellow light transmittance is 25.15 percent, and the green light transmittance is 17.22 percent; the comprehensive light transmittance of the middle end part of the lens is 12.08%, wherein the red light transmittance is 19.65%, the yellow light transmittance is 13.44%, and the green light transmittance is 10.84%; the comprehensive light transmittance of the lower end part of the lens is 10.30%, wherein the red light transmittance is 30.78%, the yellow light transmittance is 15.08%, and the green light transmittance is 6.84%.

The invention also aims to provide a progressive coated lens prepared by the production method of the progressive coated lens.

By combining all the technical schemes, the invention has the advantages and positive effects that:

the progressive coated lens prepared by the invention adopts a coating mode, a reflecting layer film system with irregular thickness is coated, different colors are shown by absorbing specific light, the production mode is environment-friendly, the product does not fade, the surface is subjected to strengthening treatment, the service life is longer, and the quality is more guaranteed.

Compared with a pure-color dyed lens, the gradually-changed dyed lens is similar to a gradually-changed lens commonly used in wind-light photography in color depth distribution from top to bottom from deep to light, and aims to achieve the visual perception of balanced brightness from the sky to the ground in the visual field when the lens is worn outdoors. The interference of reflected light irradiated by sunlight on a wet road surface, snow, water or a metal surface can be reduced, and the multi-base color LED street lamp also has multiple base colors to improve the visual field contrast and the color feeling.

The role of the progressive color in the present invention: the lens product can block strong sunlight when being worn outdoors and can be used indoors or in places with weak light in a vehicle. The light color progressive glasses are more beautiful and elegant to wear.

Drawings

FIG. 1 is a flow chart of a method for producing progressive coated lenses according to an embodiment of the invention.

Fig. 2 is a schematic structural diagram of a progressive coated lens according to an embodiment of the present invention.

Fig. 3 is a graph showing the relationship between the light wavelength and the light transmittance, which is a transmission spectrum of the upper portion of the lens, obtained by collecting the corresponding light transmittance data points and irradiating the upper portion of the lens with light of different wavelengths.

Fig. 4 is a point diagram of the data points of the corresponding light reflectivity acquired by irradiating the upper end of the lens through lights with different wavelengths.

FIG. 5 is a graph of the relationship between the wavelength and the reflectivity of light plotted according to the data points in FIG. 4, i.e., the reflection spectrum of the upper portion of the lens.

Fig. 6 is a graph showing the relationship between the light wavelength and the light transmittance, which is a transmission spectrum of the middle portion of the lens, obtained by collecting corresponding light transmittance data points and irradiating the middle portion of the lens with light of different wavelengths.

Fig. 7 is a point diagram of data points of the reflectivity of the corresponding light when the middle part of the lens is irradiated by light with different wavelengths.

FIG. 8 is a graph plotting wavelength and reflectance of light according to the data points in FIG. 7, i.e. a reflection spectrum of the middle portion of the lens.

Fig. 9 is a graph showing the relationship between the light wavelength and the light transmittance, which is a transmission spectrum of the lower portion of the lens, obtained by collecting the corresponding light transmittance data points and irradiating the lower portion of the lens with light of different wavelengths.

FIG. 10 is a point diagram of the lower portion of the lens illuminated by light of different wavelengths and collected data corresponding to the reflectivity of the light.

FIG. 11 is a graph plotting wavelength and reflectance of light according to the data points in FIG. 10, i.e., a reflection spectrum of the middle and lower portions of the lens.

In the figure, the following steps are carried out: 1. strengthening the hardening layer; 2. a lens substrate; 3. an adhesion layer; 4. a low refractive index plating layer; 5. and (4) coating with high refractive index.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In view of the problems of the prior art, the present invention provides a method for producing a progressive coated lens, which is described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the method for producing a progressive coated lens comprises:

s101: preheating and drying water vapor on the surface of the lens;

s102: controlling the pumping speed of a vacuum pump by using a vacuum gauge, vacuumizing, filling nitrogen, controlling the inflation pressure by controlling a gas flow controller, controlling the temperature to a certain temperature and preserving heat;

s103: plating a first adhesive layer on the front surface of the lens;

s104: plating 12 layers of film system systems on the front surface of the lens, alternately plating a high refractive index coating and a low refractive index coating, setting parameters of a film plating device, controlling the track stroke of a lens fixing table and controlling the track stroke of electronic steering, and plating two ends firstly;

s105: the middle part of the front surface of the lens is downwards and upwards, the first layer is plated with a high-refractive-index coating, the second layer is plated with a low-refractive-index coating, the lengths of the high-refractive-index coating and the low-refractive-index coating are alternately increased in a parabolic increasing mode;

s106: cleaning the plated lens by ultrasonic equipment, and drying by baking equipment;

s107: sending the cleaned and dried lens into an intensified hardening automatic production line, carrying out intensified treatment on the surface of the lens in a hardening liquid soaking mode, and drying to obtain a progressive coated lens;

s108: the lenses were tested for light transmittance.

In S101, the drying temperature of the preheating drying water vapor is 50-80 ℃, the baking is carried out for about 10min, and the water vapor on the surface of the lens is completely removed.

S102, controlling the pumping speed of the vacuum pump by using a vacuum gauge, and pumping vacuum when the pressure is lower than 2 x 10²When Pa, filling nitrogen, controlling the filling pressure to be 1.5 multiplied by 10 by controlling the gas flow controller^-1The temperature is raised to about 80 ℃ by about Torr, and the temperature is kept constant.

In the first adhesion layer in S103, the coating material is SiO, the coating speed is controlled to be about 0.15 nm/S, and the coating thickness is controlled to be 9-15 nm.

The high-refractive-index coating and the low-refractive-index coating in S104 are alternated, and the high-refractive-index coating is made of 100% TiO₂ZrO2, SiO or Ti₃O₅The low refractive index coating material is 100% of MgF₂、SiO₂Or Na₃AlF₆The method comprises the following steps of setting parameters of coating equipment, controlling track stroke of a lens fixing table and controlling track stroke of electronic steering, coating two ends firstly, coating down and up, coating a low-refractive-index coating on a first layer, coating a high-refractive-index coating on a second layer, alternately coating the high-refractive-index coating and the low-refractive-index coating in a parabolic manner, gradually decreasing the length of the coatings, controlling the coating speed to be about 0.15 nm/s, and controlling the thickness of each coating to be 9-15 nm.

S105, plating the middle part, the lower part and the upper part, plating a high-refractive-index coating on the first layer, plating a low-refractive-index coating on the second layer, and alternately increasing the length of the coatings in a parabolic manner; the first high refractive index coating layer is coated at a speed of about 0.1nm/s to obtain a coating layer with a thickness of 4.5-7.5 nm, and the second high refractive index coating layer is coated at a speed of about 0.15 nm/s to obtain a coating layer with a thickness of 9-15 nm.

And S106, cleaning the plated lens for 10min by using ultrasonic equipment, and drying for about 8h by using baking equipment.

And S107, delivering the cleaned and dried lens into an intensified hardening automatic production line, soaking the lens for about 15min by using a hardening liquid which is methyl transparent organic silicon resin, and baking the lens for about 2.5 h by keeping the temperature at about 95 ℃ to obtain the progressive coated lens.

In S108, the light transmittance of the lens is required to be tested: according to American standard ANSI Z80.32018, the comprehensive light transmittance is 8-40%, the red light wavelength is not less than 8% from 620 to 750nm, the yellow light wavelength is not less than 6% from 570 to 590nm, and the green light wavelength is not less than 6% from 495 to 570 nm; according to the technical indexes of the parts below the tested lens, the comprehensive light transmittance of the upper end part of the lens is 20.63 percent, wherein the red light transmittance is 29.45 percent, the yellow light transmittance is 25.15 percent, and the green light transmittance is 17.22 percent; the comprehensive light transmittance of the middle end part of the lens is 12.08%, wherein the red light transmittance is 19.65%, the yellow light transmittance is 13.44%, and the green light transmittance is 10.84%; the comprehensive light transmittance of the lower end part of the lens is 10.30%, wherein the red light transmittance is 30.78%, the yellow light transmittance is 15.08%, and the green light transmittance is 6.84%.

The invention also aims to provide a progressive coated lens prepared by the production method of the progressive coated lens.

The reflection layer film system with irregular thickness is plated, different colors can be displayed by absorbing specific light, the production mode is environment-friendly, the product does not fade, the surface is subjected to strengthening treatment, the service life is longer, and the quality is more guaranteed.

An optimal film system is designed through film system simulation software, through an evaporation mode, vacuumizing is carried out, oxygen is filled, the optimal temperature is adjusted, plating layers with different thicknesses are plated, light is refracted or reflected through a lens and mutually overlapped to generate different appearance colors, and the lens is not produced through direct dyeing, mixed toner dyeing and other modes; therefore, the coated lens has more stable color and more reliable quality, and does not cause a series of quality and health problems due to fading.

It should be noted that the embodiments of the present invention can be realized by hardware, software, or a combination of software and hardware. The hardware portion may be implemented using dedicated logic; the software portions may be stored in a memory and executed by a suitable instruction execution system, such as a microprocessor or specially designed hardware. Those skilled in the art will appreciate that the apparatus and methods described above may be implemented using computer executable instructions and/or embodied in processor control code, such code being provided on a carrier medium such as a disk, CD-or DVD-ROM, programmable memory such as read only memory (firmware), or a data carrier such as an optical or electronic signal carrier, for example. The apparatus and its modules of the present invention may be implemented by hardware circuits such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., or by software executed by various types of processors, or by a combination of hardware circuits and software, e.g., firmware.

The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.