FLAT SHEET TYPE MICRO-LENS AND PRODUCTION METHOD THEREFOR

摘要

A flat sheet type micro-lens being mechanically and thermally stable and usable in various optical fields is provided simply and at low costs. The micro-lens is formed by using a translucent DLC film (41), characterized in that the film (41) includes a refractive-index-modulated region (Rmn), and a condensing action occurs when a light flux passes through the refractive-ind ex- modulated region.