RESIN LENS WITH ENHANCED ANTI-BLUE LIGHT PERFORMANCE AND PREPARATION METHOD THEREOF

Abstract

A resin lens with enhanced anti-blue light performance and a preparation method thereof. Light transmittance of the lens at 415 nm is lower than 1%, light transmittance at 420 nm is 1.0-5.0%, light transmittance at 425 nm is 15-25%, blue light transmittance at 380-500 nm is 20-30%, visible light transmittance is greater than 88%, and a refractive index of the lens is 1.50, 1.56, 1.60, 1.67 or 1.74.

Claims

1. A resin lens with enhanced anti-blue light performance, wherein light transmittance of the lens at 415 nm is lower than 1%, light transmittance at 420 nm is 1.0-5.0%, light transmittance at 425 nm is 15-25%, blue light transmittance at 380-500 nm is 20-30%, visible light transmittance is greater than 88%, and a refractive index of the lens is 1.50, 1.56, 1.60, 1.67 or 1.74.

2. The resin lens with enhanced anti-blue light performance according to claim 1, wherein raw materials of a lens matrix comprise a main raw material and an anti-blue light absorber, the main raw material comprises a monomer and a reaction auxiliary, the reaction auxiliary is an initiator or a catalyst, and the anti-blue light absorber comprises a methyl enoate anti-blue light absorber.

3. The resin lens with enhanced anti-blue light performance according to claim 2, wherein the resin lens with enhanced anti-blue light performance with the refractive index of 1.50 comprises diethylene glycol allyl carbonate and a polymer thereof as the monomer of the lens and 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane as the initiator; the resin lens with enhanced anti-blue light performance with the refractive index of 1.56 comprises an unsaturated acrylate as the monomer of the lens and azodiisobutyronitrile as the initiator; the resin lens with enhanced anti-blue light performance with the refractive index of 1.60 or 1.67 comprises a polyurethane raw material as the monomer of the lens and an organotin catalyst as the catalyst; and the resin lens with enhanced anti-blue light performance with the refractive index of 1.74 comprises an episulfide compound or a polymercaptan compound as the monomer of the lens and an amine catalyst as the catalyst.

4. The resin lens with enhanced anti-blue light performance according to claim 3, wherein in the resin lens with enhanced anti-blue light performance with the refractive index of 1.50, a mass ratio of the monomer to the initiator is 100:(2-5); in the resin lens with enhanced anti-blue light performance with the refractive index of 1.56, a mass ratio of the monomer to the initiator is 100:(0.1-0.8); in the resin lens with enhanced anti-blue light performance with the refractive index of 1.60, a mass ratio of the monomer to the catalyst is 100:(0.01-0.08); in the resin lens with enhanced anti-blue light performance with the refractive index of 1.67, a mass ratio of the monomer to the catalyst is 100:(0.01-0.08); in the resin lens with enhanced anti-blue light performance with the refractive index of 1.74, a mass ratio of the monomer to the catalyst is 100:(0.02-0.1).

5. The resin lens with enhanced anti-blue light performance according to claim 2, wherein the methyl enoate anti-blue light absorber is methyl ethyl-2-cyano-3-(4-hydroxy methoxyphenyl)-2-enoate; in the resin lens with enhanced anti-blue light performance with the refractive index of 1.50, a use amount of the methyl enoate anti-blue light absorber is 0.5-5% of a mass of the monomer, preferably 1-3%; and in the resin lens with enhanced anti-blue light performance with the refractive index of 1.56, 1.60, 1.67 or 1.74, a use amount of the methyl enoate anti-blue light absorber is 0.01-1% of a mass of the monomer, preferably 0.1-0.8%.

6. The resin lens with enhanced anti-blue light performance according to claim 2, wherein in the raw materials of the resin lens with enhanced anti-blue light performance with the refractive index of 1.50, the anti-blue light absorber further comprises a benzophenone anti-blue light absorber; and in the raw materials of the resin lens with enhanced anti-blue light performance with the refractive index of 1.56, 1.60, 1.67 or 1.74, the anti-blue light absorber further comprises a benzotriazole anti-blue light absorber.

7. The resin lens with enhanced anti-blue light performance according to claim 6, wherein in the resin lens with enhanced anti-blue light performance with the refractive index of 1.50, a use amount of the benzophenone anti-blue light absorber is 2-8% of the mass of the monomer, preferably 2.5-5%; and in the resin lens with enhanced anti-blue light performance with the refractive index of 1.56, 1.60, 1.67 or 1.74, a use amount of the benzotriazole anti-blue light absorber is 0.1-2% of the mass of the monomer, preferably 0.5-1.5%.

8. The resin lens with enhanced anti-blue light performance according to claim 6, wherein the benzophenone anti-blue light absorber is any one or more of 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octyloxybenzophenone, 2,2′-dihydroxy-4,4′-dimethoxybenzophenone, 2,2′,4,4′-tetrahydroxy-benzophenone and 2,2′-hydroxy-4-methoxybenzophenone; and the benzotriazole anti-blue light absorber is one of 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole, 2-(2′-hydroxy-3′,5′-ditert-butylphenyl)-5-chlorobenzotriazole, 2-(2′-hydroxy-3′,5′-di-tert-butylphenyl)-5-chlorobenzotriazole, 2-(2′-hydroxy-3′,5′-di-tert-amylphenyl)benzotriazole and 2-(2′-hydroxy-5′-tert-octylphenyl)benzotriazole.

9. The resin lens with enhanced anti-blue light performance according to claim 2, wherein the raw materials of the lens matrix further comprise a blue-red complementary colorant, the blue-red complementary colorant used for the resin lens with enhanced anti-blue light performance with the refractive index of 1.50 is an inorganic dye, and an added amount of the inorganic dye is 0.01-0.5% of the mass of the monomer; and the blue-red complementary colorant used for the resin lens with enhanced anti-blue light performance with the refractive index of 1.56, 1.60, 1.67 or 1.74 is an organic dye, and an added amount of the organic dye is 0.05-1% of the mass of the monomer.

10. A preparation method of the resin lens with enhanced anti-blue light performance according to claim 1, comprising the following steps: dissolving the anti-blue light absorber and the reaction auxiliary in the monomer, adding other additives, uniformly mixing and stirring at a certain temperature for 30-60 minutes, and then conducting standing under vacuum for 30-45 minutes; filtering a material prepared above, and injecting the material into a mold for sealing; after completely pouring the material into the mold, sequentially conducting primary curing and secondary curing; and after the curing is completed, beveling and cleaning, and then conducting hardening and plating with a green film.

Description

DETAILED DESCRIPTION

[0037] Preferred embodiments of the present invention will be described in more detail below with reference to specific embodiments.

Example 1

[0038] A resin lens with enhanced anti-blue light performance with a refractive index of 1.50 included the following raw materials: 100 kg of diethylene glycol allyl carbonate and a polymer thereof as a monomer, 3 kg of 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane as an initiator, 3 kg of 2-hydroxy-4-methoxybenzophenone and 1 kg of methyl ethyl-2-cyano-3-(4-hydroxy-3-methoxyphenyl)-2-enoate as an anti-blue light absorber, and 0.3 kg of an inorganic dye as a blue-red complementary colorant.

[0039] A preparation method of the resin lens included the following steps:

[0040] the anti-blue light absorber and the initiator were dissolved in the monomer, the inorganic dye and a mold release agent were added, uniformly mixed and stirred at 25° C. for 30-60 minutes, and then standing was conducted under vacuum for 30-45 minutes;

[0041] a material prepared in step (1) was filtered, injected into a mold, and sealed;

[0042] after the material was completely poured into the mold in step (2), primary curing and secondary curing were sequentially conducted; and

[0043] after the curing was completed, beveling and cleaning were conducted, and then hardening and plating with a green film were conducted.

Example 2

[0044] A resin lens with enhanced anti-blue light performance with a refractive index of 1.56 included the following raw materials: 100 kg of an unsaturated acrylate as a monomer, 0.3 kg of azodiisobutyronitrile as an initiator, 1 kg of 2-(2-hydroxy-3-tert-butyl methylphenyl)-5-chlorobenzotriazole and 0.5 kg of methyl ethyl-2-cyano-3-(4-hydroxy-3-methoxyphenyl)-2-enoate as an anti-blue light absorber, and 0.5 kg of an organic dye as a blue-red complementary colorant.

[0045] A preparation method of the resin lens included the following steps:

[0046] the anti-blue light absorber and the initiator were dissolved in the monomer, the organic dye and a mold release agent were added, uniformly mixed and stirred at 30° C. for 30-60 minutes, and then standing was conducted under vacuum for 30-45 minutes;

[0047] a material prepared in step (1) was filtered, injected into a mold, and sealed;

[0048] after the material was completely poured into the mold in step (2), primary curing and secondary curing were sequentially conducted; and

[0049] after the curing was completed, beveling and cleaning were conducted, and then hardening and plating with a green film were conducted.

Example 3

[0050] A resin lens with enhanced anti-blue light performance with a refractive index of 1.60 included the following raw materials: 100 kg of polyurethane as a monomer, 0.05 kg of an organotin catalyst, 0.8 kg of 2-(2′-hydroxy-3′,5′-ditert-butylphenyl) chlorobenzotriazole and 0.3 kg of methyl ethyl-2-cyano-3-(4-hydroxy methoxyphenyl)-2-enoate as an anti-blue light absorber, and 0.7 kg of an organic dye as a blue-red complementary colorant.

[0051] A preparation method of the resin lens included the following steps:

[0052] the anti-blue light absorber and the catalyst were dissolved in the monomer, the organic dye and a mold release agent were added, uniformly mixed and stirred at 8° C. for 30-60 minutes, and then standing was conducted under vacuum for 30-45 minutes;

[0053] a material prepared in step (1) was filtered, injected into a mold, and sealed;

[0054] after the material was completely poured into the mold in step (2), primary curing and secondary curing were sequentially conducted; and

[0055] after the curing was completed, beveling and cleaning were conducted, and then hardening and plating with a green film were conducted.

Example 4

[0056] A resin lens with enhanced anti-blue light performance with a refractive index of 1.67 included the following raw materials: 100 kg of polyurethane as a monomer, 0.05 kg of an organotin catalyst, 1.2 kg of 2-(2′-hydroxy-3′,5′-ditert-butylphenyl)-5-chlorobenzotriazole and 0.6 kg of methyl ethyl-2-cyano-3-(4-hydroxy-3-methoxyphenyl)-2-enoate as an anti-blue light absorber, and 0.1 kg of an organic dye as a blue-red complementary colorant.

[0057] A preparation method of the resin lens included the following steps:

[0058] the anti-blue light absorber and the catalyst were dissolved in the monomer, the organic dye and a mold release agent were added, uniformly mixed and stirred at 10° C. for 30-60 minutes, and then standing was conducted under vacuum for 30-45 minutes;

[0059] a material prepared in step (1) was filtered, injected into a mold, and sealed;

[0060] after the material was completely poured into the mold in step (2), primary curing and secondary curing were sequentially conducted; and

[0061] after the curing was completed, beveling and cleaning were conducted, and then hardening and plating with a green film were conducted.

Example 5

[0062] A resin lens with enhanced anti-blue light performance with a refractive index of 1.74 included the following raw materials: 100 kg of an episulfide compound as a monomer, 0.08 kg of an amine catalyst, 1 kg of 2-(2′-hydroxy-3′,5′-di-tert-butylphenyl)-5-chlorobenzotriazole and 0.2 kg of methyl ethyl-2-cyano-3-(4-hydroxy-3-methoxyphenyl)-2-enoate as an anti-blue light absorber, and 0.3 kg of an organic dye as a blue-red complementary colorant.

[0063] A preparation method of the resin lens included the following steps:

[0064] the anti-blue light absorber and the catalyst were dissolved in the monomer, the organic dye and a mold release agent were added, uniformly mixed and stirred at 10° C. for 30-60 minutes, and then standing was conducted under vacuum for 30-45 minutes;

[0065] a material prepared in step (1) was filtered, injected into a mold, and sealed;

[0066] after the material was completely poured into the mold in step (2), primary curing and secondary curing were sequentially conducted; and

[0067] after the curing was completed, beveling and cleaning were conducted, and then hardening and plating with a green film were conducted.

[0068] Optical properties of the resin lenses prepared in examples above were shown in Table 1.

TABLE-US-00001 TABLE 1 Optical properties of the resin lenses prepared in examples Blue light Transmittance Transmittance Transmittance transmittance Visible light Sample/item at 415 nm at 420 nm at 425 nm at 380-500 nm transmittance Example 1 0.25% 1.62% 15.22% 20.28% 90.52% Example 2 0.34% 2.98% 20.83% 25.64% 95.63% Example 3 0.60% 3.75% 23.38% 27.33% 94.04% Example 4 0.29% 2.28% 18.64% 23.64% 92.12% Example 5 0.32% 4.65% 22.75% 24.78% 93.39%

[0069] According to data above, the resin lenses with enhanced anti-blue light performance prepared in examples of the present invention meet the requirements of Chinese standard, the anti-blue light performance of the lens is further enhanced, and the visible light transmittance is ensured.

[0070] The embodiments of the present invention are described above, and the foregoing descriptions are exemplary but not exhaustive and are not limited to the disclosed embodiments. Without departing from the scope and technical principles of the illustrated embodiments, it is obvious to a person of ordinary skill in the art that many modifications and changes will be made, and these modifications and changes should also be considered within the scope of protection of the present invention.