Abstract: According to the present invention, there can be provided an optical lens, comprising a thermoplastic resin containing a constituent unit (A) derived from a monomer represented by the following general formula (1), and a constituent unit (B) derived from BPEF or BPPEF represented by each of the following structural formulae, wherein the molar ratio (A:B) between the constituent unit (A) and the constituent unit (B) is 5:95 to 79:21: wherein R1 to R4 each independently represent a hydrogen atom, a halogen atom, an optionally branched alkyl group containing 1 to 10 carbon atoms, an alkoxy group containing 1 to 10 carbon atoms, or an aryl group containing 6 to 15 carbon atoms, and

Abstract: A polycarbonate resin includes a constituent unit (a) given by general formula (1-IA); a constituent unit (b) given by general formula (1-1A), but different from the constituent unit (a); a constituent unit (c-1) given by general formula (1-2A) or a constituent unit (c-2) given by general formula (3-1); and a constituent unit (d) given by general formula (2), wherein the content of the constituent unit (a) is 1-50 mol %, the content of the constituent unit (b) is 1-70 mol %, the content of the constituent unit (c-1) or (c-2) is 1-50 mol %, and the content of the constituent unit (d) is 1-30 mol %, in each case with reference to the total amount of the constituent units (a) to (d).

Abstract: According to the present invention, it is possible to provide a polycarbonate resin composition which includes a structural unit (A) derived from a monomer represented by general formula (i) and a structural unit (B) derived from a monomer represented by general formula (ii), and in which the structural unit (A) and the structural unit (B) are contained at a mass ratio of structural unit (A): structural unit (B)=91:9 to 99:1. (In general formula (i), R represents a hydrogen atom or an alkyl group having 1-4 carbon atoms.) (In general formula (ii), R1, R2, R3, and R4 each independently represent a hydrogen atom or the like, and Y1 and Y2 each independently represent an alkylene group having 1-4 carbon atoms.