Fabrication of Refractive Microlens Array by Etching Ammonium Dichromate Gelatin (ADG) with Enzyme

摘要

A new method has been developed to fabricate refractive microlens by etching ammonium dichromate gelatin (ADG) with enzyme solution. Unlike previous methods which are used to fabricate refractive mcirolens wiht photoresist, the process of fabricating microlens by etching ADG with enzyme solution doesn't require te use of expensive euqipment, and it isn't sophisticated and time consuming. The light exposes ADG through a high contrast binary mask, then the exposed parts of ADG genrate cross-linking reaction. Usually, the relief achieved by water developing is very shallow (