Polichromatic image sensor with microlenses for stereoscopic acquisition

Abstract

This paper presents the fabrication of microlenses for integration on a stereoscopic image sensor in CMOS technology and a low-cost technology for fabricating optical filters arrays tuned for the primary colors. The material selected for fabricating the microlens was the AZ4562 positive photoresist and the fabrication process explained. Moreover, the fabrication process presented in this paper is for directly printing the optical filters into a transparent flexible substrate (acetate).