According to the present invention, a polycarbonate resin having a repeat unit represented by the following formula (1) and a repeat unit represented by the following general formula (2), and an optical film using the same, can be provided.
In the formula, Y is a cycloalkylene group having a carbon number of 4 through 20 or a structure represented by the following general formula (3).
In the general formula (3), R1, R2, R3 and R4 are independently a hydrogen atom or a monovalent alkyl group having a carbon number of 1 through 5.