Optical disk stamper examination machine, optical disk stamper examination method, and optical disk stamper

摘要

A glass substrate is affixed through an UV-hardening resin to the signal face of an optical stamper and is examined using an optical head having optical constants equivalent to those of a disk examination machine, thus making it possible to obtain characteristic playback examination results equivalent to those obtained from disks manufactured using the optical stamper, wherefore optical stamper quality can be easily assessed.