Spinning coating photochromic lens

Abstract

The utility model relates to a photochromic lens with a spin-coated coating. The technical problems that an existing lens is poor in toughness, impact resistance and static pressure resistance and the like are solved. Comprising a lens body, the lens body is provided with a substrate, a base layer is arranged on one side of the substrate, and a color changing layer, a protective layer, a first hardening layer and a first anti-reflection layer are sequentially arranged on the side, away from the substrate, of the base layer from inside to outside. A second hardening layer and a second anti-reflection layer are sequentially arranged on the side, away from the base layer, of the substrate from inside to outside. The color-changing and super-tough material base layer has the advantages that the color-changing layer and the super-tough material base layer are combined, the photochromic dye layer can reduce the transmittance of strong light and protect eye health, and the color-changing and super-tough material base layer can meet the visual light requirements of different scenes such as indoor, sunshine, driving and reading; the super-tough material substrate layer significantly improves the impact resistance and static pressure resistance of the lens, and improves the use safety of the lens.

Description

TECHNICAL FIELD

[0001] The utility model belongs to resin lens technical field, concretely relates to a spin -coating coating discoloration lens. BACKGROUND

[0002] Glasses play more and more extensive application in people's life and work, and it mainly can be divided into inorganic optical glass and organic optical resin two kinds, and organic optical resin has the advantages such as light quality, easy dyeing and not easy to break compared with inorganic optical glass, and is widely used in glasses lens, optical disc substrate, optical lens and prism field etc. The resin material mainly used in the mainstream lens on the market has four kinds of materials at present, PC, acrylic resin, allyl ester resin and thio polyurethane lens, and the refractive index of the lens made of allyl ester resin and acrylic resin is between 1.499-1.61, the imaging effect of the lens is better, but the toughness is poor, and the impact resistance and static pressure resistance are poor. SUMMARY

[0003] The utility model discloses a spin -coating coating discoloration lens to solve the above problems.

[0004] To achieve the above object, the utility model adopts the following technical scheme: a spin -coating coating discoloration lens, including lens body, the lens body has substrate, the substrate one side is equipped with base layer, the base layer far from substrate one side is equipped with discoloration layer, protective layer, first hard layer and first antireflection layer gradually from inside to outside, and the substrate far from base layer one side is equipped with second hard layer and second antireflection layer gradually from inside to outside.

[0005] In the above spin -coating coating discoloration lens, the center thickness of the substrate is 1.10-1.56mm.

[0006] In the above spin -coating coating discoloration lens, the refractive index of the substrate is any one of 1.499, 1.56 and 1.61.

[0007] In the above spin -coating coating discoloration lens, the base layer is arranged on the one side of the substrate by the spin -coating processing mode.

[0008] In the above spin -coating coating discoloration lens, the discoloration layer and the protective layer are arranged on the side, away from the substrate, of the base layer by the spin -coating processing mode respectively.

[0009] In the above spin -coating coating discoloration lens, the discoloration layer is a photochromic dye layer.

[0010] In the above spin -coating coating discoloration lens, the base layer is an ultra-tough material base layer.

[0011] In the spin-coated coating photochromic lens, the thickness of the photochromic layer is 15.0+ / -1.0 microns.

[0012] In the spin-coated coating photochromic lens, the thickness of the substrate layer is 1.0-3.0 microns; and the thickness of the protective layer is 12-16 microns.

[0013] In the spin-coated coating photochromic lens, the thickness of the first and second hard layers is 2.5-3.5 microns respectively; and the thickness of the first and second anti-reflection layers is 300-400 nanometers respectively.

[0014] Compared with the prior art, the photochromic lens has the advantages that: the photochromic dye layer can reduce the transmittance of strong light, protect the eyes, and meet the visual needs in different scenes such as indoors, sunlight, driving, reading, etc.; the super tough material substrate layer significantly improves the impact resistance and static pressure resistance of the lens, and improves the safety of the lens in use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the utility model.

[0016] In the drawing: lens body 1, base sheet 11, substrate layer 12, photochromic layer 13, protective layer 14, first hard layer 15, first anti-reflection layer 16, second hard layer 17, second anti-reflection layer 18. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0018] As Figure 1 shown, a spin-coated coating photochromic lens includes a lens body 1, the lens body 1 has a base sheet 11, the base sheet 11 is provided with a substrate layer 12 on one side, the substrate layer 12 is provided with a photochromic layer 13, a protective layer 14, a first hard layer 15 and a first anti-reflection layer 16 from inside to outside away from the base sheet 11, and the base sheet 11 is provided with a second hard layer 17 and a second anti-reflection layer 18 from inside to outside away from the substrate layer 12.

[0019] That is, the first anti-reflection layer 16, the first hard layer 15, the protective layer 14, the photochromic layer 13, the substrate layer 12, the base sheet 11, the second hard layer 17 and the second anti-reflection layer 18 are sequentially arranged from top to bottom.

[0020] The center thickness of the substrate 11 is 1.10-1.56 mm. The refractive index of the substrate 11 is any one of 1.499, 1.56 and 1.61.

[0021] The base layer 12 is formed on one side of the substrate 11 by spin coating. Similarly, the color-changing layer 13 and the protective layer 14 are formed on the side of the base layer 12 away from the substrate 11 by spin coating.

[0022] The color-changing layer 13 is a photochromic dye layer with a thickness of 15.0 + / - 1.0 microns. The color-changing layer darkens under light and reduces the transmission of visible light. The base layer 12 is a super-tough material base layer that improves the impact resistance and static pressure resistance of the lens.

[0023] The thickness of the base layer 12 is 1.0-3.0 microns. The thickness of the protective layer 14 is 12-16 microns. The thickness of the first hardening layer 15 and the second hardening layer 17 is 2.5-3.5 microns. The thickness of the first anti-reflective layer 16 and the second anti-reflective layer 18 is 300-400 nanometers.

[0024] In this embodiment, the processing steps of the lens body include:

[0025] Example 1

[0026] A substrate 11 with a refractive index of 1.56 and an optical power of -4.00 and a center thickness (CT) of 1.21 mm is selected and cleaned. A base coating solution is applied to the surface of the lens by spin coating on a spin coater to form a liquid film. After UV curing, a substrate 11 with an attached base layer 12 is obtained. The base layer 12 contains 11.5-15.5% super-tough material.

[0027] After the components of the color-changing solution are completely dissolved, they are mixed and stirred uniformly to form a coating solution with a viscosity of 110.0 + / - 10.0 cps. The coating solution is applied to the surface of the lens by spin coating on a spin coater to form a liquid film. The liquid film is cured into a film by heating to 110-130°C for 1 hour. The color-changing layer 13 is obtained with a thickness of 15.0 + / - 1.0 microns. The color-changing layer 13 contains photochromic dye that darkens under light and reduces the transmission of visible light.

[0028] After the components of the protective layer are completely dissolved, they are mixed and stirred uniformly to form a coating solution. The coating solution is applied to the surface of the color-changing layer 13 of the lens by spin coating to form a liquid film. The liquid film is cured by UV lamp irradiation for 2.0-3.0 seconds to obtain the protective layer 14. The protective layer 14 prevents the color-changing layer 13 from being corroded during the hardening process of the lens. After inspection, the lens is placed in a strengthening furnace and kept at 120-130°C for 1 hour.

[0029] The substrate 11 with the base layer 12, the color-changing layer 13 and the protective layer 14 is immersed in a hardening liquid for 10.0-12.0 seconds, slowly pulled up at a speed of 30-50 mm / min, the hardening liquid is applied to both sides of the lens, the lens is sent into a heating channel, and after being heated and solidified at 80-85°C for half an hour, the lens is put into a strengthening furnace and kept at 115°C for 2 hours to obtain the first hardening layer 15 and the second hardening layer 17, and then the first anti-reflection layer 16 and the second anti-reflection layer 18 are applied through vacuum coating to finally obtain the spin-coated coating color-changing lens.

[0030] Ten lenses of each of the lenses of the embodiment are taken to test the lens performance on an impact drop ball tester and a static pressure tester. The drop ball height is 1.27 m, the steel ball mass is 16 g, the static pressure is set to 100 N, the falling speed is set to 380 mm / min, and the holding time is set to 10 seconds. The 20 lenses of the embodiment are not broken and can pass the test under the condition.

[0031] Example 2

[0032] The substrate 11 with a refractive index of 1.499 and a light degree of -6.00 and a center thickness (CT) of 1.26 mm is selected, and a similar process and procedure of Example 1 are applied to finally obtain the spin-coated coating color-changing lens of the utility model. Ten lenses of each of the lenses of the embodiment are taken to test the lens performance on an impact drop ball tester and a static pressure tester. The drop ball height is 1.27 m, the steel ball mass is 16 g, the static pressure is set to 100 N, the falling speed is set to 380 mm / min, and the holding time is set to 10 seconds. The 20 lenses of the embodiment are not broken and can pass the test under the condition.

[0033] Comparative Example 1

[0034] The substrate with a refractive index of 1.56 and a light degree of -4.00 and a center thickness (CT) of 1.22 mm is selected, and a similar process of Example 1 is applied to apply the color-changing layer, the protective layer, the hardening layer and the anti-reflection layer on the substrate to obtain the spin-coated coating color-changing lens. Ten lenses of each of the lenses of the embodiment are taken to test the lens performance on an impact drop ball tester and a static pressure tester. The drop ball height is 1.27 m, the steel ball mass is 16 g, the static pressure is set to 100 N, the falling speed is set to 380 mm / min, and the holding time is set to 10 seconds. Ten lenses of the embodiment are broken into pieces after being impacted by the steel ball, and the center of the 10 lenses is broken within 1 second under the static pressure, and cannot pass the test under the condition. The falling speed of the static pressure testing head is reduced to 10 mm / min, and the holding time is set to 10 seconds. Ten lenses of the embodiment are taken for testing, and the center of the lenses is broken within 1 second under the static pressure, and cannot pass the test under the condition.

[0035] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0036] Although the terms lens body 1, substrate 11, base layer 12, color-changing layer 13, protective layer 14, first hardening layer 15, first anti-reflection layer 16, second hardening layer 17, second anti-reflection layer 18 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the present application; any additional limitation by interpreting them is contrary to the spirit of the present application.

Claims

1. A spin-coated variegated lens comprising a lens body (1) having a substrate (11), characterized in that, The substrate (11) is provided with a base layer (12) on one side, the base layer (12) is provided with a color-changing layer (13), a protective layer (14), a first hardening layer (15) and a first anti-reflection layer (16) from inside to outside on the side away from the substrate (11), and the substrate (11) is provided with a second hardening layer (17) and a second anti-reflection layer (18) from inside to outside on the side away from the base layer (12); the base layer (12) is an ultra-tough material base layer.

2. A spin-coated coated transition lens according to claim 1, wherein, The central thickness of the substrate (11) is 1.10-1.56mm.

3. The spin-coated coated transition lens of claim 1, wherein, The refractive index of the substrate (11) is any one of 1.499, 1.56 and 1.

61.

4. The spin-coated coated transition lens of claim 1, wherein, The base layer (12) is arranged on one side of the substrate (11) by a spin coating process.

5. The spin-coated coated transition lens of claim 1, wherein, The color-changing layer (13) and the protective layer (14) are arranged on the side of the base layer (12) away from the substrate (11) by a spin coating process.

6. The spin-coated coated transition lens of claim 1, wherein, The color-changing layer (13) is a photochromic dye layer.

7. The spin-coated coated transition lens of claim 1, wherein, The thickness of the color-changing layer (13) is 15.0+ / -1.0 microns.

8. The spin-coated coated transition lens of claim 1, wherein, The thickness of the base layer (12) is 1.0-3.0 microns; the thickness of the protective layer (14) is 12-16 microns.

9. The spin-coated coated transition lens of claim 1, wherein, The thickness of the first hardening layer (15) and the second hardening layer (17) is 2.5-3.5 microns respectively; the thickness of the first anti-reflection layer (16) and the second anti-reflection layer (18) is 300-400 nanometers respectively.

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