Abstract: An object of the present invention is to provide a signal detection system capable of removing noise caused by scattered light or the like and capable of detecting an accurate signal.

Abstract: An object of the present invention is to provide a phase difference film that can exhibit sufficient reciprocal wavelength dispersibility. The present invention includes a copolymer containing at least one selected from a unit represented by Formula (1) and a unit represented by Formula (2), and a unit represented by Formula (3), in which 20 nm<Re (548)<300 nm, 0.5<Re (446)/Re (548)<1.0, and 1.0<Re (629)/Re (548)<2.0. Here, Re (446), Re (548), and Re (629) represent in-plane retardations at wavelengths of 446 nm, 548 nm, and 629 nm, respectively.

Abstract: The present invention provides a cured product obtained by curing a curable composition including a compound represented by General Formula 1, in which a birefringence ?n (587 nm) is 0.00??n (587 nm)?0.01. Pol1-Sp1-L1-Ar-L2-Sp2-Pol2??(General Formula 1) In the formula, Ar represents a divalent group containing a ring structure selected from the group consisting of a quinoxaline ring and a quinazoline 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 divalent linking group; Pol1 and Pol2 each represent a hydrogen atom or a polymerizable group; and the compound represented by General Formula 1 has at least one polymerizable group. The cured product of the present invention has a small Abbe number (?d) and a large partial dispersion ratio (?g, F), and is therefore useful for production of optical members.

Abstract: The present invention provides a curable resin composition including a bifunctional or more (meth)acrylate compound, indium tin oxide particles, and an acidic polymer, in which the acidic polymer has a moiety including a carboxyl group at a polymer skeleton of a (meth)acrylate compound and at any one of terminals of the polymer skeleton of a (meth)acrylate compound, and an acid value of the acidic polymer is 2.0 mgKOH/g or more and less than 100 mgKOH/g. The curable resin composition of the present invention provides a transparent cured product, hardly causes bubbles to be mixed in a case of applying the curable resin composition to a mold so as to form a lattice-shaped cured product, and also has a good peeled surface shape from the mold after curing. The present invention also provides a diffractive optical element including a surface having a diffraction grating shape and formed of the cured product of the curable resin composition.

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: According to the present invention, a cured product obtained by curing a curable composition including a compound represented by General Formula 1, in which a birefringence ?n (587 nm) is 0.00??n (587 nm)?0.01, is provided, and this cured product is suitable for manufacturing an optical member. Pol1-Sp1-L1-Ar-L2-Sp2-Pol2??(General Formula 1) In formula, Ar is an aromatic ring group represented by General Formula 2-2 and the like. In 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 divalent linking 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.

Abstract: According to the present invention, as a monomer which is unlikely to be crystallized in a curable composition for manufacturing an optical member and which enables manufacture of a cured product having a high level of moisture-heat resistance, a compound represented by General Formula (A) is provided.

Abstract: An object of the present invention is to provide a phase difference film that can exhibit sufficient reciprocal wavelength dispersibility. The present invention includes a copolymer containing at least one selected from a unit represented by Formula (1) and a unit represented by Formula (2), and a unit represented by Formula (3), in which 20 nm<Re (548)<300 nm, 0.5<Re (446)/Re (548)<1.0, and 1.0<Re (629)/Re (548)<2.0. Here, Re (446), Re (548), and Re (629) represent in-plane retardations at wavelengths of 446 nm, 548 nm, and 629 nm, respectively.

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 ?p 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 curable composition contains a compound represented by General Formula (1):

Abstract: Disclosed is a polycarbonate resin having a constitutional unit represented by Formula (1). The resin provides a molded article having a sufficiently low Abbe number and having high abnormal dispersibility may be molded. Y1 and Y2 are an oxygen, sulfur, nitrogen or carbon atom; Z is an atomic group for forming a 5- to 7-membered ring; R5 to R8 represent a substituent; and Ar11 and Ar12 represent an aryl or heteroaryl 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.

Abstract: A curable composition contains: a cardo skeleton-containing monomer having two or more (meth)acryloyl groups in a molecule; an aromatic ring-containing monofunctional (meth)acrylate monomer; and an acidic phosphate ester, in which the acidic phosphate ester is a compound represented by General Formula (1), and the content of the acidic phosphate ester is 0.003% to 1% by mass with respect to a total mass of the curable composition.

Abstract: A curable composition contains a compound represented by General Formula (1):

Abstract: Disclosed is a polycarbonate resin having a constitutional unit represented by Formula (1). The resin provides a molded article having a sufficiently low Abbe number and having high abnormal dispersibility may be molded. Y1 and Y2 are an oxygen, sulfur, nitrogen or carbon atom; Z is an atomic group for forming a 5- to 7-membered ring; R5 to R8 represent a substituent; and Ar11 and Ar12 represent an aryl or heteroaryl group.

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 ?p 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.

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: Provided are a curable composition exhibiting excellent solvent solubility while maintaining a high refractive index; an optical component using such a curable composition; and a compound. The curable composition contains a compound represented by the following Formula (1) and at least one kind selected from thermal radical polymerization initiators or photo radical polymerization initiators. In Formula (1), Ar1 to Ar4 each independently represent an aromatic ring, at least one of Ar1, . . . , or Ar4 represents a benzothiazole ring, a benzoxazole ring, an aromatic ring containing a benzothiazole ring or a benzoxazole ring, or an aromatic ring having a benzothiazolyl group or a benzoxazolyl group as a substituent, and two or more of Y1 to Y4 represent a polymerizable group.

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.