POLYIMIDE PRECURSOR COMPOSITION POLYAMIC ACID POLYIMIDE RESIN POLYIMIDE FILM AND OPTICAL DEVICE

The present invention lies in providing a polyimide precursor composition capable of providing a polyimide film having a high refractive index and low retardation, a polyamic acid which is suitable asa precursor component in the polyimide precursor composition, a polyimide resin which can be produced using the polyimide precursor composition, a polyimide film which can be produced using the polyimide precursor composition, and an optical device which is provided with the polyimide film. The solution of the present invention is: a solution that an aromatic diamine compound containing, as a diamine component (B1), an amino group-containing aromatic group in which two specific structures are bonded to the same carbon atom in a polycyclic skeleton such as a fluorene skeleton is contained in aresin precursor component (B). Alternatively, a polyimide resin or a polyimide film is formed using, as a resin precursor component (B), a polyamic acid (B3) containing a structural unit derived fromthe structure of the aroma