摘要:
The optical article of the invention contains a photochromic compound, and a first compound having an absorption peak in a wavelength range of 550 to 600 nm, has a laminate structure in which (A) a first functional layer containing at least a photochromic compound and (B) a lens substrate independently exist, has a luminous transmittance of 30% or more in the state with no photochromic compound coloration, has a luminous transmittance of 25% or less in the state with photochromic compound coloration, and has a minimum transmittance of 0.1 to 20% in a wavelength range of 550 to 600 nm, in a state with photochromic compound coloration. According to the invention, there is provided a novel photochromic optical article exhibiting excellent photochromic properties, visibility and anti-glare properties, and further having a high contrast (red, green and blue can be clearly differentiated and the outline and protrusions/recesses of objects are clear).
摘要:
The present invention relates to a photochromic optical article including a pair of optical article plates bonded together through an adhesive layer containing a photochromic compound and at least one resin selected from a urethane resin, an epoxy resin, and an acrylic resin, wherein a deviation of the thickness of the adhesive layer on a concentric circle from the central point of the pair of optical article plates is within ±10%. In accordance with the present invention, in the photochromic optical article formed of a pair of optical article plates bonded together through an adhesive layer, a photochromic optical article in which the thickness of the photochromic adhesive layer is prescribed, and which is free from problems, such as a lowering of the appearance quality, can be provided.
摘要:
Provided is a photochromic optical article obtained by bonding a pair of optical article plates to each other with an adhesive layer that contains (A) a photochromic compound and (B) a urethane resin, wherein (B) the urethane resin is obtained by polymerizing: (B1) a polyiso(thio)cyanate compound having two or more iso(thio)cyanate groups in a molecule; (B2) a poly(thi)ol compound having, in a molecule, two or more active hydrogen-containing groups selected from a hydroxyl group and a thiol group; and (B3) a mono(thi)ol compound having, in a molecule, one active hydrogen-containing group selected from a hydroxyl group and a thiol group. Also provided is a method for manufacturing the photochromic optical article.
摘要:
To provide an adhesive composition capable of firmly bonding polymer sheets together, comprising: (I) 100 parts by mass of an end-unreactive urethane urea resin; and (III) 4.0 to 20 parts by mass of a polyisocyanate compound having at least two isocyanate groups in the molecule, wherein the polyisocyanate compound (III) contains (IIIA) a polyisocyanate compound having an isocyanate group bonded to secondary carbon and (IIIB) a polyisocyanate compound having 4 to 30 carbon atoms in the molecule other than the component (IIIA), and the amount of the component (IIIB) is 10 to 500 parts by mass based on 100 parts by mass of the component (IIIA).
摘要:
[PROBLEMS] To prevent or reduce the problem wherein color development and fading in expected color tones do not occur in an optical element that includes a photochromic coat layer containing alkylamino group-containing photochromic compounds and/or dialkylamino group-containing photochromic compounds in a high concentration and a hard coat layer formed on the photochromic coat layer. [MEANS FOR SOLVING PROBLEMS] A photochromic optical element comprising an optical substrate, a photochromic coat layer, and a hard coat layer that are laminated in this order, wherein (I) the photochromic coat layer comprising an alkylamino group-containing photochromic compound and/or a dialkylamino group-containing photochromic compound in a total amount of 0.1 to 10.0% by mass, and (II) the hard coat layer is obtained by curing a hard coat agent comprising metal oxide fine particles and an organosilicon compound, the hard coat agent containing as the organosilicon compound at least one selected from the group consisting of a tetraalkoxy silane, a methyl trialkoxy silane, and partial hydrolysates thereof in an amount of 10 to 60% by mass based on the total mass of the metal oxide fine particles and the organosilicon compound (with the proviso that, when the organosilicon compound is a partial hydrolysate of a partially hydrolyzable organosilicon compound, the mass of the organosilicon compound in the above total mass is the mass of the partially hydrolyzable organosilicon compound).
摘要:
A photochromic compound of the present invention comprises at least two monovalent photochromic basic structure groups PC including a T-type photochromic moiety, the photochromic basic structure groups being bonded to an organic group having a non-SO aromatic ring containing neither a sulfur atom nor an oxygen atom.
摘要:
[Problem] To provide a coating apparatus capable of automatically executing a series of steps of measuring the shape of a lens and applying a primer solution thereon, drying the primer solution and applying a photochromic coating solution thereon, and curing the coated solutions by the UV irradiation, liberating the operator from the work of setting the lenses piece by piece. [Means for Solution] A lens-feeding portion 2 is arranged upstream of the series of steps, the lens-feeding portion 2 having lens-holding units 22 in which a plurality of lenses are arranged straight in the horizontal direction and/or in the up-and-down direction, and a first lens sub-carrier means 31 for carrying the lenses held therein to the lens-measuring portion 3. The lens-holding unit 22 has, formed therein, a plurality of stepped lens-placing portions in concentric having diameters increasing upward, and an open portion is formed in the central portions of the plurality of lens-placing portions and in a portion of the lens-placing portion on the side of the lens sub-carrier means enabling the lens-support portion of the carrier means to pass through.
摘要:
To provide a photopolymerization device and to provide a production method for a lens that has a photochromic coating layer, the device and the production method being capable of preventing the occurrence of wide liquid pool and of the wrinkle of an end part, even for a workpiece that has a refractive index that is close to that of the photochromic coating layer. A photopolymerization device (20) that has: a workpiece holding part (1) that holds a workpiece (W); and a photoirradiation device (6) that is arranged above the workpiece holding part (1) and that radiates light toward the workpiece (W). The photopolymerization device (20) is configured such that a reflecting plate (3) that has a reflecting surface that has a specular gloss at angles of 60° of 10-200 is arranged below the workpiece holding part (1) and such that light that arrives at the reflecting surface of the reflecting plate (3) is radiated toward the workpiece (W).