Functional laminated spectacle lens having functional layer formed by spin-coating

• US 10,444,547 B2
• Filed: 06/26/2015
• Issued: 10/15/2019
• Est. Priority Date: 07/07/2014
• Status: Active Grant

• Current Assignee: Talex Optical Co., Ltd.
• Original Assignee: Talex Optical Co., Ltd.
• Inventors: Tamura, Hiroo, Mitsuuchi, Shoichi, Wada, Kenzo, Nitta, Ryogo
• Primary Examiner(s): Beatty, Collin X
• Application Number:
  US15/323,837
• Publication Number:
  US 20170153464A1
• Time in Patent Office: 1,572 Days
• Field of Search: 3511596-15966
• CPC Class Codes: B05D 1/005 Spin coating
• CPC Class Codes: B29D 11/00644 polarizing
• CPC Class Codes: B29D 11/00653 photochromic
• CPC Class Codes: B29D 11/0073 Optical laminates
• CPC Class Codes: B29D 11/00884 Spin coating
• CPC Class Codes: B32B 2255/26 Polymeric coating
• CPC Class Codes: B32B 2307/42 Polarizing, birefringent, filtering
• CPC Class Codes: B32B 2551/00 Optical elements
• CPC Class Codes: B32B 27/365 comprising polycarbonates
• CPC Class Codes: C09D 175/04 Polyurethanes
• CPC Class Codes: C09D 7/40 Additives
• CPC Class Codes: C09D 7/41 Organic pigments; Organic dyes
• CPC Class Codes: G02B 5/22 Absorbing filters G02B5/201 - G02B5/208 take precedence
• CPC Class Codes: G02B 5/23 Photochromic filters
• CPC Class Codes: G02C 2202/16 Laminated or compound lenses
• CPC Class Codes: G02C 7/102 Photochromic filters
• CPC Class Codes: G02C 7/108 Colouring materials
• CPC Class Codes: G02C 7/12 Polarisers

Abstract

A functional laminated spectacle lens is provided which includes, as constituent layers, an outer lens, a polarizing film, and an inner lens. A functional layer is formed on at least one of the constituent layers. Another constituent layer is laminated on and joined to the functional layer through an adhesive layer. The functional layer is formed using a spin coating material which is obtained by incorporating a functional pigment into an acrylic urethane resin containing, as a main component, an acrylic polyol containing 4-hydroxybutyl acrylate, and, as a curable component, a polyisocyanate. Once the spin coating material cures, the required functional pigment is reliably maintained in the functional layer by a three-dimensional network structure, the migration of the functional pigment into an adjacent resin monomer-containing layer is prevented, and the functional pigment is made less susceptible to the effect of an organic peroxide contained in the resin.

Claims

1. A functional laminated spectacle lens comprising at least one functional layer which is provided adjacent to a layer containing a resin monomer,

wherein the functional layer is formed by spin-coating a material obtained by incorporating a functional pigment into an acrylic urethane resin which comprises, as a main component, an acrylic polyol containing from 30 to 45% by mass of 4-hydroxybutyl acrylate, and, as a curable component, a polyisocyanate.

2. The functional laminated spectacle lens according to claim 1, wherein the functional pigment is one of a tetraazaporphyrin compound, a photochromic compound, and an infrared-absorbing pigment.

3. The functional laminated spectacle lens according to claim 1, further comprising a layer of a polarizing film.

5. The functional laminated spectacle lens according to claim 2, further comprising a layer of a polarizing film.

4. A method of producing a functional laminated spectacle lens comprising at least a first layer, a second layer and a third layer, the method comprising:

preparing a spin coating material which can be formed into a functional layer of the functional laminated spectacle lens by spin coating such that the functional layer imparts, to the functional laminated spectacle lens, an optical function required for the functional laminated spectacle lens, wherein the spin coating material is obtained by incorporating a functional pigment into an acrylic urethane resin which comprises, as a main component, an acrylic polyol containing from 30 to 45% by mass of 4-hydroxybutyl acrylate, and, as a curable component, a polyisocyanate;

spin coating the spin coating material on a surface of the first layer;

allowing the spin coating material to cure to form, as the second layer, the functional layer;

applying one of an adhesive agent and a liquid resin on a surface of the functional layer; and

allowing the one of the adhesive agent and the liquid resin to cure to form the third layer such that the first, second and third layers are integrally joined together.

6. The method according to claim 4, wherein the spin coating material contains a silane coupling agent as an essential component.