Microlenses for stereoscopic image formation

• Author(s): Rocha, R. P. ; Carmo, J. P. ; Correia, J. H.
• Date: 2012
• Persistent ID: http://hdl.handle.net/1822/22039
• Origin: RepositóriUM - Universidade do Minho
• Subject(s): Microlenses; Optical filters; RGB; Image sensor; Stereoscopic vision; Low-cost fabrication
• Document Type: Conference Object
• Language: English

Description

This paper presents microlenses for integration on a stereoscopic image sensor in CMOS technology for use in biomedical devices. It is intended to provide an image sensor with a stereoscopic vision. An array of microlenses potentiates stereoscopic vision and maximizes the color fidelity. An array of optical filters tuned at the primary colors will enable a multicolor usage. The material selected for fabricating the microlens was the AZ4562 positive photoresist. The reflow method applied to the photoresist allowing the fabrication of microlenses with high reproducibility.