Abstract:
A curable resin composition for a lens, including a coloring agent A having a maximal absorption at a wavelength of 520 to 620 nm, in which a wavelength dispersion WD of a cured product of the composition, which is calculated by the following expression (X), is 2.0×10−5 or more; a cured product formed of the curable resin composition for a lens; a diffractive optical element; and a multilayer diffractive optical element. WD=(nC−n(1129))/(1129−656) Expression (X) In the expression, nC represents a refractive index at a wavelength of 656 nm and n(1129) represents a refractive index at a wavelength of 1129 nm.
Abstract:
Provided are a cured product of a curable composition including a compound represented by General Formula (1), in which a birefringence Δn at a wavelength of 587 nm is 0.00≤Δn≤0.01; an optical member; a lens; a compound represented by General Formula (1); a curable resin composition containing the compound; a cured product; a diffractive optical element; and a multilayer diffractive optical element. Pol1-Spa-L1-Ar-L2-Spb-Pol2 Genera Formula (1) Ar represents an aromatic ring group represented by a specific formula, L1 and L2 represent —O—, Spa and Spb represent a linking group having the shortest atom number of 11 or more and linking Pol and L, Pol1 and Pol2 represent a polymerizable group, and in Spa and Spb, a linking portion to L1 or L2 is —CH2— and a linking portion to Pol1 or Pol2 is a carbon atom.
Abstract:
According to the present invention, a lens adhesive including a compound represented by General Formula 1 is provided. Pol1-Sp1-L1-Ar-L2-Sp2-Pol2 (General Formula 1) In the formula, Ar is an aromatic ring group represented by General Formula 2-2 and the like. In the formula, Z1 and Z2 each represent a hydrogen atom, a methyl group, and the like; A1 and A2 each represent —S— and the like; X represents C(Rz)2 and the like (where Rz is a substituent, and two Rz's may form a ring); L1 and L2 each represent a single bond, —O—, —OC(═O)—, —OC(═O)O—, —OC(═O)NH—, and the like; Sp1 and Sp2 each represent a single bond or a linking group such as a linear alkylene group; Pol1 and Pol2 each represent a hydrogen atom or a polymerizable group; and a compound represented by General Formula 1 has at least one polymerizable group. Using the lens adhesive, it is possible to provide a cemented lens that is unlikely to deteriorate due to light, and an imaging module having high durability.
Abstract:
Disclosed herein are a curable composition which is capable of producing a cured product having a low Abbe's number and increased durability, and a curable composition with suppressed viscosity increase. Provided is a compound represented by General Formula (A). Also provided are a curable composition including a compound represented by General Formula (A), a predetermined (meth)acrylate monomer, and at least one selected from a photoradical polymerization initiator and a thermal radical polymerization initiator; a cured product formed by curing the curable composition; an optical component; and a lens.
Abstract:
A heat-resistant cured product is efficiently produced by obtaining a semi-cured product where a curable resin composition containing a (meth)acrylate monomer, a non-conjugated vinylidene group-containing compound and a thermal radical-polymerization initiator is processed by at least one of photoirradiation and heating to give a semi-cured product having a complex viscosity of from 105 to 108 mPa·s at 25° C. and at a frequency of 10 Hz; and putting the semi-cured product in a forming die for pressure formation therein, and heating it therein for thermal polymerization to give a cured product.
Abstract:
The present invention provides a polymer which has a small change in relative permittivity before and after exposure to a high-temperature and high-humidity environment, and is capable of forming a film having few wrinkles; a composition; a piezoelectric composite material; a piezoelectric film; and a piezoelectric element. The polymer of an embodiment of the present invention is a polymer including a repeating unit represented by Formula (A) and a repeating unit represented by Formula (B), in which a content of the repeating unit represented by Formula (A) is 60% by mole or more with respect to all repeating units of the polymer, a content of the repeating unit represented by Formula (B) is 1% to 40% by mole with respect to all repeating units of the polymer, and the polymer includes no repeating unit represented by Formula (C), or in a case where the polymer includes the repeating unit represented by Formula (C), a content of the repeating unit represented by Formula (C) is 5% by mole or less with respect to all repeating units of the polymer.
Abstract:
Provided are a compound represented by the following General Formula (A1-1), a method for producing the same, and the use of the compound:
wherein R5 and R6 represent a hydrogen atom or an alkyl group, L1 and L2 represent an alkylene group having 1 to 6 carbon atoms, Spa and Spb represent a single bond or a divalent linking group, R11 and R21 represent a substituent, and v1 and w1 are an integer of 0 to 4. Further provided that a structure represented by (R11)v1-benzen ring/cyclopentadiene skeleton/naphthalene ring-(R21)w1 is not line-symmetrical, where “/” represents that two rings described on left and right sides of the structure are fused.
Abstract:
Provided are a polymerizable composition containing a compound represented by General Formula (I-1) or General Formula (I-2) and a polymerizable compound, applications of the polymerizable composition, a compound represented by General Formula (II), and applications of the compound. In General Formula (I-1), General Formula (I-2), and General Formula (II), R1 represents a hydrogen atom, an alkyl group, or the like, R2 and R3 each represent a hydrogen atom, an alkyl group, or the like, R4 and R5 each represent an electron-withdrawing group, and A represents a 5- or 6-membered ring or the like. In General Formula (I-1), D represents O, S, or N-E, and E represents an alkyl group. At least one of R1, R2, R3, R4, R5, or A in General Formula (II) contains a substituent selected from the group consisting of General Formula (III) and General Formula (IV).
Abstract:
Disclosed is a polycarbonate resin including a constitutional unit represented by Formula (1). The resin provides a molded article having a sufficiently low Abbe number and excellent durability under high temperature and high humidity. R1 to R4 are a hydrogen atom or a substituent having σp of less than −0.15, R5 to R7 represent a substituent, Ar11 and Ar12 represent an aryl or heteroaryl group, and Ar13 is an aromatic fused ring group.
Abstract:
A cured product of a compound of the following formula has a low Abbe number and a high abnormal dispersibility. X and Y are O, S, N or S; Z and X—C═C—Y form 5 to 7-membered ring; R1 and R2 represents H, alkoxy, mercapto, thioalkoxy, amino, alkylamino, carboxy, alkylcarbonyloxy, carbamoyloxy or alkoxycarbonyloxy; and R3 to R6 represent substituent.