CN110646950A - Lens with near infrared ray IRA (infrared radiation interference) prevention function and manufacturing process thereof - Google Patents
Lens with near infrared ray IRA (infrared radiation interference) prevention function and manufacturing process thereof Download PDFInfo
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- CN110646950A CN110646950A CN201910853941.2A CN201910853941A CN110646950A CN 110646950 A CN110646950 A CN 110646950A CN 201910853941 A CN201910853941 A CN 201910853941A CN 110646950 A CN110646950 A CN 110646950A
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Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
-
- G—PHYSICS
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- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
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- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
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- G02—OPTICS
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- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
Abstract
The invention provides a lens with a near infrared ray IRA (infrared radiation interference) prevention function and a manufacturing process thereof, wherein the lens comprises a resin lens, a bottom coating hardened layer is arranged on the front surface and the back surface of the resin lens, an anti-red external hard layer is arranged on the outer surface of the bottom coating hardened layer, an anti-reflection coating layer is arranged on the outer surface of the anti-red external hard layer, the thickness of the bottom coating hardened layer is 0.9 micrometer, and the thickness of the anti-red external hard layer is 1.8 micrometer. The infrared absorption material and the hardening liquid are combined into a hardening layer, so that the near infrared ray of 900nm can be effectively blocked, and the protective effect on the glasses is further enhanced. The process can effectively block infrared rays and improve the surface hardness of the lens, compared with the traditional manual lens lifting and cleaning process, the process is efficient and quick, the labor cost is reduced, and the yield of the lens can be effectively improved; the raw material of the resin lens is not limited too much, and all refractive index lenses can realize the absorption of infrared rays of the lens by applying the process.
Description
Technical Field
The invention relates to the field of lens manufacturing, in particular to a lens with a near infrared ray IRA (infrared absorption) prevention function and a manufacturing process thereof.
Background
The radiation resistant lenses are classified as UV380, UV400, UV420 can now be completely cut off. But the protection against infrared seems to have not yet received much attention. We first understand the damage of infrared to glasses: acute eye injury caused by infrared: the infrared can be subdivided into far infrared IR (3000-4000 nm), mid-infrared IR-B (1400-3000 nm) and near-infrared IR-A (760-1400 nm) lasers. More than 90% of far infrared rays are absorbed by cornea and conjunctiva, while part of the mid-infrared rays and near-infrared rays have the characteristic of 'body absorption', and can also penetrate through the whole layer of the cornea to cause injury. When the beam diameter is wider, the irradiation range is larger, and the damage is more obvious. If the injury is slight, the injury is only limited to the external epithelial layer, and the injury can cause keratitis and conjunctivitis, and has symptoms of ophthalmalgia, foreign body sensation, photophobia, lacrimation, conjunctival congestion, visual deterioration and the like; if the injury reaches the internal tissue, the cornea and conjunctiva are turbid and denatured, scars or perforations are formed, and the ciliary body is destroyed, so that the vision is degraded.
Because part of the mid-infrared rays and the near-infrared rays can also act on the crystalline lens, the high-energy infrared laser is usually utilized in scientific research experiments to directly damage the crystalline lens through spot positioning, and the cataract animal model is established. The light spots can cause rupture of the lens, causing traumatic cataract with occasional secondary intraocular hypertension or inflammatory reactions. The damage causes rupture and perforation of the lens capsule, expansion of cortex, denaturation and solidification of lens fibrin, and gradually forms turbidity within ten days, wherein the turbidity area takes a laser focus point as a center, the shape is irregular, and the boundary is irregular. Some cases are turbid and gradually absorbed and dissipated, but the disease is also worsened to form vacuole or edema and gradually develops into complete cataract. Depending on the location, scale and degree of turbidity, mild people have fixed muscae volitantes, diplopia or monocular hyperopia, and severe people have gradually reduced vision, blurred vision, even severely impaired vision, and residual light sensation.
Most of the bath heaters and warmers which are contacted with the glasses in daily life generate heat in the infrared mode, and the light rays which seem to be very mild cause a great deal of damage to the glasses. The damage of infrared to the glasses is not small, so how to make the common lens have the infrared-proof function is the key point of the invention.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a lens with a near infrared ray IRA (infrared radiation protection) function and a manufacturing process thereof, aiming at the defect that the prior lens has few infrared ray protection designs, and further effectively preventing the damage of infrared rays to glasses through a special structure and a special process.
The invention provides a lens with a near infrared ray IRA (infrared radiation interference) prevention function, which comprises a resin lens, wherein a bottom coating hard layer is arranged on the front surface and the back surface of the resin lens, a red prevention external hard layer is arranged on the outer surface of the bottom coating hard layer, an antireflection coating layer is arranged on the outer surface of the red prevention external hard layer, the thickness of the bottom coating hard layer is 0.9 micrometer, and the thickness of the red prevention external hard layer is 1.8 micrometer.
The further improvement lies in that: the resin lens is a resin lens with refractive indexes of 1.499, 1.60 and 1.67 series.
The further improvement lies in that: the antireflection coating layer is made of SiO2、ZrO2、SiO2、ZrO2、SiO2、Al2O3And SiO2And (4) forming.
The invention also provides a manufacturing process of the lens with the near infrared ray IRA prevention function, which comprises the following steps: the process comprises the following steps:
the method comprises the following steps: milling and grinding the lens and preprocessing: carrying out surface milling, polishing and marking on the resin lens blank to obtain a resin prescription substrate, cleaning, and then clamping; if the resin substrate is the resin substrate, cleaning the resin substrate, and adding a hard clamp;
step two: dip-coating and hardening the surface of the lens: dip-coating a first layer of primer hardening liquid on the front surface and the back surface of the resin substrate in the step one, and then curing for 15min at 65 ℃; cooled to 20 ℃. Then dip-coating a second layer of infrared-proof hardening liquid on the front and back surfaces of the substrate, pre-curing for 30min at 70 ℃, and finally putting the substrate into an oven to cure for 2.5h at 120 ℃;
step three: and (3) drying the lens treated in the second step, and then putting the lens into a vacuum coating machine for vacuum coating, wherein the film layer is preferably a nano-film antireflection layer consisting of SiO2, AL2O3, ZRO2 and ITO.
The further improvement lies in that: and the resin blank in the step one is a semi-finished product or a substrate, and the semi-finished product is milled and polished into a prescription lens by a lathe.
The further improvement is that the pulling speed of the first priming and hardening liquid which is dip-coated on the front surface and the back surface of the lens substrate in the second step is 0.5mm/s ~ 2.0.0 mm/s, the immersion is completed for 20 ~ 30s, and then the curing is carried out for 15min at 65 ℃.
The further improvement is that the pulling speed of the second layer of infrared-proof hardening liquid in the second step is 1.0mm/s ~ 3.0.0 mm/s, the second layer of infrared-proof hardening liquid is soaked for 25 ~ 35s, pre-solidified for 30min at 70 ℃, and finally placed into an oven for solidification for 2.5h at 120 ℃.
The further improvement is that the hardening coating liquid medicine in the second step is automatically hardened by using a hardening machine, and the liquid medicine circulating filter core of the machine is 1 ~ 10 mu m.
The front and back surfaces of the substrate are coated with a first layer of base coat hardening liquid, preferably base coat hardening liquid of SDC company of Mitsui chemical corporation, the hardening liquid contains one or more infrared absorbing dyes, the total content of the dyes is 0.01 percent ~ 1 percent, and the infrared absorbing liquid can effectively absorb infrared rays in a wave band near 900 nm.
The second layer of the hardening material for the hardening layer in which the front and rear surfaces of the substrate are dip-coated is preferably a hardening material of SDC, Inc. of Mitsui chemical Co.
The front and back surfaces of the lens are vacuum-coated with antireflection film layers by using a vacuum coating machine, and the thickness of the coating layer is 116nmSiO2、38nmZrO2、22nmSiO2、75nmZrO2、78nmSiO2、12nmAl2O3And 67nmSiO2。
The lens can be used in daily use and special fields such as electric welding protective glasses and laser protective glasses.
The invention has the beneficial effects that: the infrared absorption material and the hardening liquid are combined into a hardening layer, so that the near infrared ray of 900nm can be effectively blocked, and the protective effect on the glasses is further enhanced. The infrared absorption material is organically combined with the hardening liquid, so that infrared rays can be effectively blocked, and the surface hardness of the lens can be improved; the raw material of the resin lens is not limited too much, and all refractive index lenses can realize the absorption of infrared rays of the lens by applying the process.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a structural exploded view of the present invention.
FIG. 3 is a schematic diagram of the absorption spectrum of the present invention.
Wherein: 1-resin lens, 2-priming coating and hardening layer, 3-anti-reddening coating and hardening layer, 4-antireflection coating layer.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
Example one
As shown in fig. 1 to 3, the present embodiment provides a lens with a near infrared ray IRA prevention function, including a resin lens, a primer hardened layer is provided on front and back surfaces of the resin lens, an anti-infrared hard layer is provided on an outer surface of the primer hardened layer, an anti-reflection coating layer is provided on an outer surface of the anti-infrared hard layer, a thickness of the primer hardened layer is 0.9 micrometers, and a thickness of the anti-infrared hard layer is 1.8 micrometers.
The further improvement lies in that: the resin lens is a resin lens with refractive indexes of 1.499, 1.60 and 1.67 series.
The further improvement lies in that: the antireflection coating layer is made of SiO2、ZrO2、SiO2、ZrO2、SiO2、Al2O3And SiO2And (4) forming.
The embodiment also provides a manufacturing process of the lens with the near infrared ray IRA prevention function: the process comprises the following steps:
the method comprises the following steps: processing the resin semi-finished product into a resin substrate or performing appearance inspection, pretreatment and clamping on the resin substrate;
step two: adding a specific 0.08% infrared absorbent into top coating hardening liquid MP7110 of SDC, fully stirring until the infrared absorbent is completely dissolved, adding the mixture into a hardening liquid tank in a hardening machine, and circulating for 24 hours by using a filter element with the diameter of 5 mu m;
step three: carrying out hard coating on the lens by an automatic hardening machine, immersing the lens in the step 1 into SDC (sodium dodecyl sulfate) base coat hardening liquid, wherein the pulling speed is 1.0mm/s, and pre-fixing the lens for 15min at 65 ℃ after the pulling is finished;
step four: setting the pulling speed of the hardening solution prepared in the step two as follows: 1.5mm/s, pre-curing at 70 ℃ for 30min after finishing the pulling, and putting into an oven for curing for 2.5h at 120 ℃;
step five: and transferring the lens cured in the step four into a vacuum coating machine for antireflection coating.
Example two:
the difference from the first embodiment is that the manufacturing process of the lens with the near infrared ray IRA prevention function comprises the following steps: the process comprises the following steps: the method comprises the following steps: processing the resin semi-finished product into a resin substrate or performing appearance inspection, pretreatment and clamping on the resin substrate;
step two: adding a specific 0.50% infrared absorbent into top coating hardening liquid MP7110 of SDC, fully stirring until the infrared absorbent is completely dissolved, adding the mixture into a hardening liquid tank in a hardening machine, and circulating for 24 hours by using a filter element with the diameter of 5 mu m;
step three: carrying out hard coating on the lens by an automatic hardening machine, immersing the lens in the first step into SDC (sodium dodecyl sulfate) base coat hardening liquid, wherein the pulling speed is 1.0mm/s, and pre-fixing the lens for 15min at 65 ℃ after the pulling is finished;
step four: setting the pulling speed of the hardening solution prepared in the step two as follows: 1.5mm/s, pre-curing at 70 ℃ for 30min after finishing the pulling, and putting into an oven for curing for 2.5h at 120 ℃;
step five: and transferring the lens cured in the step four into a vacuum coating machine for antireflection coating.
Example three:
the difference from the first embodiment is that the manufacturing process of the lens with the near infrared ray IRA prevention function comprises the following steps: the process comprises the following steps:
the method comprises the following steps: processing the resin semi-finished product into a resin substrate or performing appearance inspection, pretreatment and clamping on the resin substrate;
step two: adding a specific 1.00% infrared absorbent into top coating hardening liquid MP7110 of SDC, fully stirring until the infrared absorbent is completely dissolved, adding the mixture into a hardening liquid tank in a hardening machine, and circulating for 24 hours by using a filter element with the diameter of 5 mu m;
step three: carrying out hard coating on the lens by an automatic hardening machine, immersing the lens in the step 1 into SDC (sodium dodecyl sulfate) base coat hardening liquid, wherein the pulling speed is 1.5mm/s, and pre-fixing for 15min at 65 ℃ after pulling is finished;
step four: setting the pulling speed of the hardening solution prepared in the step two as follows: 2.0mm/s, pre-curing at 70 ℃ for 30min after finishing the pulling, and putting into an oven for curing for 2.5h at 120 ℃;
step five: and transferring the lens cured in the step four into a vacuum coating machine for antireflection coating.
Claims (8)
1. The utility model provides a lens of near infrared ray IRA function is prevented in area, includes resin lens (1), its characterized in that: the resin lens is characterized in that a bottom coating hardening layer (2) is arranged on the front surface and the rear surface of the resin lens (1), an anti-red external hard layer (3) is arranged on the outer surface of the bottom coating hardening layer (2), an anti-reflection coating layer (4) is arranged on the outer surface of the anti-red external hard layer (3), the thickness of the bottom coating hardening layer (2) is 0.9 micrometer, and the thickness of the anti-red external hard layer (3) is 1.8 micrometer.
2. The lens with the function of preventing near infrared ray IRA according to claim 1, wherein: the resin lens (1) is a resin lens with refractive index of 1.499, 1.60, 1.67 series.
3. The lens with the function of preventing near infrared ray IRA according to claim 1, wherein: the antireflection coating layer (4) is made of SiO2、ZrO2、SiO2、ZrO2、SiO2、Al2O3And SiO2And (4) forming.
4. A process for manufacturing the lens with near infrared ray IRA prevention function according to any one of claims 1 to 3, which comprises the following steps: the method is characterized in that: the process comprises the following steps:
the method comprises the following steps: milling and grinding the lens and preprocessing: carrying out surface milling, polishing and marking on the resin lens blank to obtain a resin prescription substrate, cleaning, and then clamping; if the resin substrate is the resin substrate, cleaning the resin substrate, and adding a hard clamp;
step two: dip-coating and hardening the surface of the lens: dip-coating a first layer of primer hardening liquid on the front surface and the back surface of the resin substrate in the step one, and then curing for 15min at 65 ℃; cooling to 20 ℃, then dip-coating a second layer of infrared-proof hardening liquid on the front and back surfaces of the glass substrate, pre-curing for 30min at 70 ℃, and finally putting the glass substrate into an oven to cure for 2.5h at 120 ℃;
step three: and (3) drying the lens treated in the second step, and then putting the lens into a vacuum coating machine for vacuum coating, wherein the film layer is preferably a nano-film antireflection layer consisting of SiO2, AL2O3, ZRO2 and ITO.
5. The process for manufacturing a lens with a function of preventing near infrared ray IRA according to claim 4, wherein: and the resin blank in the step one is a semi-finished product or a substrate, and the semi-finished product is milled and polished into a prescription lens by a lathe.
6. The process for manufacturing a lens with a function of preventing near infrared IRA according to claim 4, wherein in the second step, the first primer hardening liquid is coated on the front and back surfaces of the lens substrate in a dip manner at a pulling speed of 0.5mm/s ~ 2.0.0 mm/s, the immersion is completed for 20 ~ 30s, and then the curing is carried out for 15min at 65 ℃.
7. The process for manufacturing a lens with a function of preventing near infrared IRA according to claim 4, wherein in the second step, the pulling speed of the second layer of infrared-proof hardening liquid is 1.0mm/s ~ 3.0.0 mm/s, the second layer of infrared-proof hardening liquid is soaked for 25 ~ 35s, pre-cured at 70 ℃ for 30min, and finally placed in an oven for curing at 120 ℃ for 2.5 h.
8. The process for manufacturing a lens with a function of preventing near infrared IRA according to claim 4, wherein said hardening coating liquid medicine in step two is automatically hardened by using a hardening machine, and the liquid medicine circulation filter core of the machine is 1 ~ 10 μm.
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| CN201910853941.2A CN110646950A (en) | 2019-09-10 | 2019-09-10 | Lens with near infrared ray IRA (infrared radiation interference) prevention function and manufacturing process thereof |
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| CN201910853941.2A CN110646950A (en) | 2019-09-10 | 2019-09-10 | Lens with near infrared ray IRA (infrared radiation interference) prevention function and manufacturing process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366995A (en) * | 2020-04-23 | 2020-07-03 | 江苏万新光学有限公司 | Resin lens with high-hardness film layer structure and preparation method thereof |
| CN112578576A (en) * | 2020-12-02 | 2021-03-30 | 明月镜片股份有限公司 | Resin lens with high-hardness film layer structure and preparation method thereof |
| CN114994954A (en) * | 2022-05-19 | 2022-09-02 | 青岛韩奥光学有限公司 | Infrared protection lens and preparation method thereof |
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| CN107957600A (en) * | 2018-01-17 | 2018-04-24 | 江苏康耐特光学有限公司 | A kind of anti-reflection anti-infrared plated film resin lens and preparation method thereof |
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