CN109324426B - Color-changing lens - Google Patents
Color-changing lens Download PDFInfo
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- CN109324426B CN109324426B CN201811317321.9A CN201811317321A CN109324426B CN 109324426 B CN109324426 B CN 109324426B CN 201811317321 A CN201811317321 A CN 201811317321A CN 109324426 B CN109324426 B CN 109324426B
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- color
- changing
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- film
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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
- G02C7/105—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having inhomogeneously distributed colouring
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- G—PHYSICS
- 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
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
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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
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/022—Ophthalmic lenses having special refractive features achieved by special materials or material structures
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Eyeglasses (AREA)
Abstract
The invention discloses a color-changing lens, which comprises a lens base material and a color-changing film; the color-changing film is formed by spin-coating color-changing liquid on a lens substrate, heating and curing by infrared rays and cooling, the thickness of the color-changing film is 15 mu m, and the color-changing liquid is prepared by the following raw materials according to the mass portion ratio, namely blue toner 8410, green toner 8409, red toner 8405, toluene, polytetramethylene ether glycol, acrylic polymer, dimercaptoethyl sulfide, poly (methylene phenyl isocyanate), isocyanate compound, 1358 curing agent, 306 leveling agent, dibutyl tin dilaurate, Pasteur light stabilizer 144, 1010 antioxidant and aluminum acetylacetonate. The light transmittance of the color-changing lens for the wavelength of 420-790 nm is 15.63-80.79%, the time required for changing from light color to dark color is 3-4 seconds, the time required for changing from dark color to light color is 5-6 seconds, and the use effect is obviously improved.
Description
Technical Field
The invention relates to the technical field of lenses, in particular to a color-changing lens.
Background
A photochromic lens is a lens that turns dark when exposed to light of a particular wavelength (typically ultraviolet light), but returns to its original light transmittance and becomes clear when no longer illuminated by the light source. Due to its unique properties, color changing lenses are widely used in sunglasses, optical glasses, snow glasses, sport glasses and goggles. However, the existing color-changing lens has the defect of slow color-changing speed, generally, the existing color-changing lens needs about 20 seconds for changing from light color to dark color, and needs about 50 seconds for changing from dark color to light color, the using effect is not ideal, and the existing color-changing lens is particularly used in some using situations with fast environmental conversion, such as: when a vehicle running on a highway enters a tunnel or exits the tunnel, the existing color-changing lens cannot change color rapidly, the lens is always dark after entering the tunnel for a period of time, so that the sight line is blurred when the vehicle runs in the tunnel, and the lens is still light after exiting the tunnel for a period of time, so that the eyes cannot be opened due to strong light irradiation, and the use safety is reduced.
In view of the above, the present inventors have studied and developed a color-changing lens, which is produced by the present invention.
Disclosure of Invention
The invention aims to provide a color-changing lens, which can realize quick color change and improve the use effect.
In order to achieve the above object, the solution of the present invention is:
a color changing lens, which comprises a lens substrate and a color changing film;
the lens substrate is PC (polycarbonate);
the color-changing film is formed by spin-coating color-changing liquid on a lens substrate, heating and curing by infrared rays, and cooling, wherein the thickness of the color-changing film is 15 mu m, and the color-changing liquid is prepared from 841029 parts of blue toner, 84098 parts of green toner, 84055 parts of red toner, 300 parts of toluene, 200 parts of polytetramethylene ether glycol, 150 parts of acrylic polymer, 7 parts of dimercaptoethyl sulfide, 100 parts of poly (methylene phenyl isocyanate), 200 parts of isocyanate compound, 80 parts of 1358 curing agent, 4 parts of 306 flatting agent, 4 parts of dibutyl tin dilaurate, 14410 parts of Pasteur light stabilizer, 5 parts of 1010 antioxidant, and 10 parts of aluminum acetylacetonate.
The blue toner 8410, the green toner 8409 and the red toner 8405 are products of Kun shan division of Taiwan Chongyu science and technology Co., Ltd, and the 1358 curing agent and the 306 leveling agent are products of German Bike chemical company which is an agency of Guangzhou Baohua trade Co., Ltd, are all existing raw materials and can be purchased from manufacturers.
The color-changing film is also provided with a protective film, the protective film is formed by spin coating protective liquid on the color-changing film and then curing the protective film by ultraviolet rays, the thickness of the protective film is 3 mu m, and the protective liquid is urethane acrylate oligomer.
The protective film is also provided with a strengthening layer, the hardness of the strengthening layer is 4H, and the thickness of the strengthening layer is 3 μm.
After the scheme is adopted, the photochromic lens is formed by solidifying the special photochromic liquid, the refractive index is controlled to be 1.58, the photochromic speed of the lens is high, and the experimental test result is as follows: the light transmittance of the color-changing lens for the wavelength of 420-790 nm is 15.63-80.79%, the time required for changing from light color to dark color is 3-4 seconds, the time required for changing from dark color to light color is 5-6 seconds, and the use effect is obviously improved.
The invention is described in further detail below with reference to the figures and specific embodiments.
Drawings
FIG. 1 is a graph of transmittance measurements for gray lenses according to an embodiment of the invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a partially enlarged view of fig. 2.
Description of the reference symbols
The lens comprises a lens substrate 1, a color-changing film 2, a protective film 3 and a strengthening layer 4.
Detailed Description
As shown in fig. 2 and 3, the color changing lens of the present invention comprises a lens base material 1 and a color changing film 2.
The lens base material 1 is PC (polycarbonate). The color-changing film 2 is formed by spin-coating color-changing liquid on the lens substrate 1, heating and solidifying by infrared rays and cooling, the thickness of the color-changing film 2 is 15 mu m, the color-changing film 2 is formed by spin-coating color-changing liquid on the lens substrate 1, heating and solidifying by infrared rays and cooling, and the thickness of the color-changing film 2 is 15 mu m. In order to increase the surface hardness of the lens and prevent scratches, a protective film 3 is further formed on the color changing film 2, the protective film 3 is formed by spin coating a protective solution on the color changing film 2 and then curing the protective solution by ultraviolet rays, the thickness of the protective film 3 is 3 μm, and the protective solution is a urethane acrylate oligomer. Further, a reinforcing layer 4 is formed on the protective film 3, and the reinforcing layer 4 has a hardness of 4H and a thickness of 3 μm.
The color-changing lens in the embodiment is gray, and the color-changing liquid used by the color-changing film 2 is prepared from 841029 parts of blue toner, 84098 parts of green toner, 84055 parts of red toner, 300 parts of toluene, 200 parts of polytetramethylene ether glycol, 150 parts of acrylic polymer, 7 parts of dimercaptoethyl sulfide, 100 parts of poly (methylene phenyl isocyanate), 200 parts of isocyanate compound, 80 parts of 1358 curing agent, 4 parts of 306 leveling agent, 4 parts of dibutyl tin dilaurate, 14410 parts of Pasteur light stabilizer, 5 parts of 1010 antioxidant and 10 parts of aluminum acetylacetonate.
The blue toner 8410, the green toner 8409, and the red toner 8405 are products of Kunshan division, a Chongyu science and technology Co., Ltd, Taiwan, and the 1358 curing agent and the 306 leveling agent are products of Germany Bike chemical company, which is an agency of Guangzhou Baohua trade Co., Ltd, and are available as raw materials and can be purchased from manufacturers.
The refractive index of the color-changing lens prepared by the invention is controlled to be 1.58, and the color-changing lens can reach four standards, namely American national standard ANSI Z80.3-2015, European standard EN 1836:2005+ A1:2007, Australian/New Zealand standard AS/NZS 1067-: the light transmittance of the color-changing lens for the wavelength of 420-790 nm is 15.63-80.79%, the color-changing speed of the lens is high, the time required for changing from light color to dark color is 3-4 seconds, the time required for changing from dark color to light color is 5-6 seconds, and the use effect is obviously improved.
Table 1 lists 10 sets of data for the examples.
Table 2 lists 10 sets of data for the example of Table 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, so that variations and modifications in accordance with the design features of the present invention are within the scope of the present invention.
Claims (3)
1. The color-changing lens is characterized by comprising a lens substrate and a color-changing film;
the lens base material is PC;
the color-changing film is formed by coating color-changing liquid on a lens substrate in a rotating manner, heating and curing by infrared rays, and cooling, wherein the thickness of the color-changing film is 15 mu m, and the color-changing liquid is prepared by 841029 parts of blue toner, 84098 parts of green toner, 84055 parts of red toner, 300 parts of toluene, 200 parts of polytetramethylene ether glycol, 150 parts of acrylic polymer, 7 parts of dimercaptoethyl sulfide, 100 parts of polymethylene phenyl isocyanate, 200 parts of isocyanate compound, 80 parts of 1358 curing agent, 4 parts of 306 flatting agent, 4 parts of dibutyl tin dilaurate, 10 parts of Pasteur 144light stabilizer, 1010 parts of antioxidant and 10 parts of aluminum acetylacetonate; the blue toner 8410, the green toner 8409, and the red toner 8405 are products of Kunshan division, a Chongyu science and technology Co., Ltd, Taiwan, and the 1358 curing agent and the 306 leveling agent are products of Germany Bike chemical company, which is an agency of Guangzhou Baohua trade Co., Ltd.
2. A color changing lens according to claim 1, wherein: the color-changing film is also provided with a protective film, the protective film is formed by spin coating protective liquid on the color-changing film and then curing the protective film by ultraviolet rays, the thickness of the protective film is 3 mu m, and the protective liquid is urethane acrylate oligomer.
3. A color changing lens according to claim 2, wherein: the protective film is also provided with a strengthening layer, the hardness of the strengthening layer is 4H, and the thickness of the strengthening layer is 3 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811317321.9A CN109324426B (en) | 2018-11-07 | 2018-11-07 | Color-changing lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811317321.9A CN109324426B (en) | 2018-11-07 | 2018-11-07 | Color-changing lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109324426A CN109324426A (en) | 2019-02-12 |
| CN109324426B true CN109324426B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811317321.9A Active CN109324426B (en) | 2018-11-07 | 2018-11-07 | Color-changing lens |
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| CN (1) | CN109324426B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111427170A (en) * | 2020-05-11 | 2020-07-17 | 江苏全真光学科技股份有限公司 | Durable color-changing lens |
| CN113703194B (en) * | 2021-08-30 | 2023-03-21 | 江苏韩创新材料有限公司 | Film-blacking lens and preparation process thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| PT2684886E (en) * | 2011-03-08 | 2015-09-24 | Tokuyama Corp | Chromene compound |
| JP6592078B2 (en) * | 2015-03-10 | 2019-10-16 | 株式会社トクヤマ | Method for producing photochromic cured body |
| WO2017030545A1 (en) * | 2015-08-17 | 2017-02-23 | Transitions Optical, Inc. | Curable photochromic compositions |
| CN207780402U (en) * | 2018-05-18 | 2018-08-28 | 上海康耐特光学有限公司 | A kind of color-changing lens and glasses |
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| CN109324426A (en) | 2019-02-12 |
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