Light control plastic lens, coated sheet-like light control element for the lens production, and a production method for light control plastic lens
View Patent ↗A light control plastic lens, a sheet-like light control element, and a production method for light control plastic lenses are provided. More specifically, a light control plastic lens, such as a high index polarizing property and/or a photochromic plastic lens that is made by cast polymerization is provided. Also provided is a sheet-like light control element for use in the production of the lenses, as well as a production method of such light control plastic lenses. The light control plastic lens has a sheet-like light control element including at least a light control sheet. In particular, the light control plastic lens has a sheet-like light control element, a curable resin layer laminated on at least one surface of the sheet-like light control element, and a polymerizable lens resin layer laminated at least on the curable resin layer.
1. A light control plastic lens having a sheet-like light control element including at least a light control sheet, the lens comprising the sheet-like light control element, a curable resin layer laminated on at least one surface of the sheet-like light control element, and a polymerizable lens resin layer laminated at least on the curable resin layer,
wherein the polymerizable lens resin layer contains a sulfur-containing polymerizable compound.
2. The light control plastic lens according to claim 1 , wherein the light control sheet serves either as a polarizing sheet or a photochromic sheet or both.
3. The light control plastic lens according to claim 1 , wherein the curable resin layer is formed of a (meth)acrylate resin.
4. The light control plastic lens according to claim 3 , wherein the (meth)acrylate resin is at least one selected from the group consisting of urethane(meth)acrylate resins, polyester(meth)acrylate resins, and epoxy(meth)acrylate resins.
5. The light control plastic lens according to claim 3 , wherein the layer of the (meth)acrylate resin is from 2 μm to 13 μm thick.
6. The light control plastic lens according to claim 1 , wherein the sheet-like light control element is a light control laminate.
7. The light control plastic lens according to claim 6 , wherein the light control laminate comprises at least the light control sheet and a transparent sheet laminated on at least one surface of the light control sheet.
8. The light control plastic lens according to claim 2 , wherein the polarizing sheet is formed of a polyvinyl alcohol-based resin, contains a dichromatic pigment, and is treated with a metal compound and boric acid.
9. The light control plastic lens according to claim 2 , wherein the photochromic sheet is formed of a polyurethane-based resin, and contains a photochromic pigment.
10. The light control plastic lens according to claim 9 , wherein the photochromic pigment is at least one selected from the group consisting of spirobenzopyran derivatives, naphthopyran derivatives, and spirooxazine derivatives.
11. The light control plastic lens according to claim 7 , wherein the transparent sheet is formed of at least one selected from the group consisting of polycarbonate resins, cellulose resins, alicyclic polyolefin resins and polyester resins.
12. The light control plastic lens according to claim 7 , wherein the transparent sheet is formed of a polycarbonate resin.
13. The light control plastic lens according to claim 7 , wherein the transparent sheet is 20 μm to 2 mm thick.
14. The light control plastic lens according to claim 1 , wherein the sulfur-containing polymerizable compound is at least one selected from the group consisting of thiourethane-based polymerizable compounds and episulfide-based polymerizable compounds.