Patent ID: 7082244

Claim:
A polyimide optical material, comprising heterocyclic polyimide having an unit represented by the following general formula (1), (2) or (3): (wherein Φ 1 s are the same or different and are individually a quadrivalent organic group, the Φ 1 s including at least 0.2 molar equivalent of a quadrivalent hetrocyclic group selected from the following Group (a); Ψ 1 s may be the same or different and are individually a bivalent organic group; and n is a positive integer), (wherein Φ 2 s are the same or different and are individually a quadrivalent organic group; Ψ 2 s may be the same or different and are individually a bivalent organic group, the Ψ 2 s including at least 0.2 molar equivalent of a bivalent hetrocyclic group selected from the following Group (b); and n is a positive integer), (wherein Φ 3 s are the same or different and are individually a quadrivalent organic group, the Φ 3 s including at least 0.1 molar equivalent of a quadrivalent hetrocyclic group selected from the following Group (a); Ψ 3 s may be the same or different and are individually a bivalent organic group, the Ψ 3 s including at least 0.1 molar equivalent of a bivalent hetrocyclic group selected from the following Group (b); and n is a positive integer): Group (a): Group (b): (In the above formulas, Xs are the same or different and are individually >O group, >S group or >N—R f group (R f group is perfluoroalkyl group); R are the same or different and are individually fluoro group, chloro group, bromo group, iodo group, perfluoroalkyl group, perfluoroalkoxy group, perfluoroalkylthio group, nitro group or cyano group; m is an integer of 1 to 4).