OPTICAL SUBSTRATE, METHOD FOR MANUFACTURING THE SAME, AND OPTICAL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an optical substrate and a method for manufacturing the substrate, in which a film pattern can be easily obtained and an optical device using the optical substrate. SOLUTION: In the method for manufacturing an optical substrate, a light transmitting member 10 is processed in such a manner that the easiness for deposition of the material to form a film pattern 30 differs between projections 12 and recesses 14 of the member 10. The material to form the film pattern 30 is selectively deposited on either the projections 12 or the recesses 14 which are processed to easily deposit the material to form the film pattern 30 so as to form the film pattern 30.