Patent ID: 7791823
Filing Date: 2010-09-07
Classification: G02B

Abstract:
1. A method of manufacturing a substrate with a plurality of recess portions for forming microlenses, comprising: a first recess portions formation step for forming a plurality of first recess portions in the substrate; and a second recess portions formation step for forming a plurality of second recess portions in the substrate between the first recess portions, the second recess portions having a different size from the first recess portions, wherein the second recess portions are smaller than the first recess portions; and after forming a mask on the substrate and forming a plurality of first openings in the mask, the first recess portions are formed in the substrate by etching the substrate, and then, after forming a new mask on the substrate and forming a plurality of second openings in the new mask, the second recess portions are formed in the substrate by etching the substrate.