Classifications

• • 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
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F2/00—Processes of polymerisation
  • C08F2/46—Polymerisation initiated by wave energy or particle radiation
  • C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
  • C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F230/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
  • C08F230/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal
  • C08F230/08—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
• • 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
• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C7/00—Optical parts
• • 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
  • G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection

Definitions

• Patent Document 1 describes, as the radically polymerizable component (A), a silsesquioxane component (A1) having a radically polymerizable group and a bifunctional radically polymerizable monomer (A2) represented by the general formula (1).
• a photochromic curable composition is disclosed, which further contains a photochromic compound (B).
• the present disclosure provides a spectacle lens having a lens base material and a resin layer disposed on the lens base material, the resin layer containing a compound represented by formula (A) and a resin,
• the resin contains repeating unit 1 derived from silsesquioxane having a polymerizable group and repeating unit 2 derived from a monofunctional monomer, and the mass ratio of repeating unit 1 to repeating unit 2 is 60/40 to 95/5. and relates to an eyeglass lens whose transmittance at a wavelength of 556 nm is 65 to 80%.
• FIG. 1 is a cross-sectional view of one embodiment of a spectacle lens.
• a spectacle lens 10 shown in FIG. 1 has a lens base material 12 and a resin layer 14 disposed on the lens base material 12.
• the resin layer 14 is arranged so as to be in direct contact with the lens base material 12, but the present invention is not limited to this form, and other layers (for example, , primer layer, etc.) may be disposed. That is, the resin layer 14 may be placed directly on the lens base material 12, or may be placed indirectly on the lens base material 12 via another layer. Further, in FIG. 1, the resin layer 14 is arranged on one side of the lens base material 12, but the resin layer 14 may be arranged on both sides of the lens base material 12.
• the eyeglass lens of the present disclosure provides a brightening effect indoors where ultraviolet rays are not substantially irradiated, whereas the eyeglass lens loses its color outdoors where ultraviolet rays are irradiated. Can be used as regular undyed eyeglass lenses.
• the average transmittance of the spectacle lens in the wavelength range of 380 to 780 nm before specific irradiation is T 11 (%), and the average transmittance of the spectacle lens in the wavelength range of 380 to 780 nm after specific irradiation is T 12 (%).
• T 11 is preferably 70 to 90%, more preferably 72 to 87%.
• T 12 is preferably 80 to 90%, more preferably 85 to 90%.
• ⁇ T 1 is preferably 2.0 to 20.0%, more preferably 2.0 to 18.0%.
• the average transmittance of the eyeglass lens in the wavelength range of 380 to 780 nm before specific irradiation refers to the average transmittance of the eyeglass lens in the wavelength range of 380 to 780 nm when the eyeglass lens is left indoors under fluorescent light for 30 minutes, similar to the measurement of the transmittance of the eyeglass lens at a wavelength of 556 nm.
• the transmittance was measured using the eyeglass lens after the treatment.
• the average transmittance of the spectacle lens in the wavelength range of 430 to 470 nm before specific irradiation is T 21 (%)
• the average transmittance of the spectacle lens in the wavelength range of 430 to 470 nm after specific irradiation is T 22 (%).
• the spectacle lens satisfies the relationship of formula (2).
• T 21 is preferably 75 to 90%, more preferably 84 to 90%.
• T22 is preferably 82 to 90%, more preferably 85 to 90%.
• ⁇ T 2 is preferably 0.0 to 6.0%, more preferably 0.0 to 3.0%.
• the average transmittance of the eyeglass lens in the wavelength range of 430 to 470 nm before specific irradiation refers to the average transmittance of the eyeglass lens in the wavelength range of 430 to 470 nm when the eyeglass lens is left indoors under fluorescent light for 30 minutes, similar to the measurement of the transmittance of the eyeglass lens at a wavelength of 556 nm.
• the transmittance was measured using the eyeglass lens after the treatment.
• the average transmittance of the eyeglass lens in the wavelength range of 630 to 670 nm before specific irradiation refers to the average transmittance of the eyeglass lens in the wavelength range of 630 to 670 nm when the eyeglass lens is left indoors under fluorescent light for 30 minutes, similar to the measurement of the transmittance of the eyeglass lens at a wavelength of 556 nm.
• the transmittance was measured using the eyeglass lens after the treatment.
• the thickness of the lens base material is often 1 to 30 mm for ease of handling.
• Repeating unit 1 is a repeating unit derived from silsesquioxane having a polymerizable group.
• repeating unit 1 is a repeating unit obtained by polymerizing silsesquioxane having a polymerizable group.
• the polymerizable group include radically polymerizable groups and cationic polymerizable groups.
• radically polymerizable groups include (meth)acryloyl groups.
• the cationically polymerizable group include alicyclic ether groups such as epoxy groups and oxetanyl groups, cyclic acetal groups, cyclic lactone groups, cyclic thioether groups, spiro-orthoester groups, and vinyloxy groups.
• Repeating unit 2 is a repeating unit derived from a monofunctional monomer.
• the repeating unit 2 is a repeating unit obtained by polymerizing a monofunctional monomer.
• Monofunctional monomers are monomers that have one polymerizable group. Examples of the polymerizable group include the groups exemplified as the polymerizable group of the above-mentioned silsesquioxane, preferably a radically polymerizable group, and more preferably a (meth)acryloyl group.
• the monofunctional monomer may have a functional group other than the polymerizable group.
• monofunctional monomers include ethylene glycol monoethyl ether methacrylate, (meth)acrylic acid, 2-(2-ethoxyethoxy)ethyl acrylate, methoxypolyethylene glycol monoacrylate, methoxypolyethylene glycol monomethacrylate, phenoxypolyethylene glycol acrylate, 2-Acryloyloxyethyl succinate, 2-ethylhexyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, tetrahydrofurfuryl acrylate, 2-ethylhexylcarbitol acrylate, 3-methoxybutyl acrylate, benzyl acrylate, cyclohexyl acrylate, isoamyl Acrylates, isobutyl acrylate, methoxytriethylene glycol acrylate, phenoxytetraethylene glycol acrylate, cetyl acrylate, isostearyl acrylate, steary
• Resin X may be used alone or in combination of two or more.
• the content of resin X is preferably 80 to 99.99% by mass, more preferably 85 to 99.95% by mass, and even more preferably 90 to 99% by mass, based on the total mass of the resin layer.
• the thickness of the resin layer is preferably 1 to 150 ⁇ m, more preferably 2 to 40 ⁇ m, and even more preferably 5 to 25 ⁇ m.
• each eyeglass lens was fixed at a position 10 cm from the light source using a slide projector (CABIN CS-15, manufactured by Iwasaki Electric Co., Ltd., using a halogen lamp), and irradiated with ultraviolet rays at 90 mW/cm 2 for 240 seconds.
• the average transmittance in each wavelength region after specific irradiation was measured using a spectrophotometer (U-4100, manufactured by Hitachi), and the difference in average transmittance before and after specific irradiation in each wavelength region ( ⁇ T 1 ⁇ T 4 (results are shown in the average ⁇ T column in the table) were determined.
• the undyed clear lens is the lens base material (lens base material 1 or lens base material 2) used in each eyeglass lens of Examples and Comparative Examples.

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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)
• Chemical & Material Sciences (AREA)
• Medicinal Chemistry (AREA)
• Organic Chemistry (AREA)
• Polymers & Plastics (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Spectroscopy & Molecular Physics (AREA)
• Eyeglasses (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

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Family Applications (1)

Country Status (5)

Cited By (1)

Citations (6)

Family Cites Families (1)

• 2023
  • 2023-06-15 EP EP23823965.1A patent/EP4542287A1/en active Pending
  • 2023-06-15 WO PCT/JP2023/022175 patent/WO2023243675A1/ja not_active Ceased
  • 2023-06-15 JP JP2024528934A patent/JP7830643B2/ja active Active
  • 2023-06-15 CN CN202380046161.1A patent/CN119301511A/zh active Pending
• 2024
  • 2024-12-16 US US18/982,184 patent/US20250116884A1/en active Pending

Patent Citations (6)

Non-Patent Citations (2)

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