18 August 2000 Fabrication of refractive microlens array by etching ammonium dichromate gelatin (ADG) with enzyme
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Proceedings Volume 4179, Micromachining Technology for Micro-Optics; (2000) https://doi.org/10.1117/12.395682
Event: Micromachining and Microfabrication, 2000, Santa Clara, CA, United States
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 microlens with photoresist, the process of fabricating microlens by etching ADG with enzyme solution doesn't require the use of expensive equipment, and it isn't sophisticated and time consuming. The light exposes ADG through a high contrast binary mask, then the exposed parts of ADS generate cross- linking reaction. Usually, the relief achieved by water developing is very shallow (<1um) when nonpre-harden gelatin is used, so we compound a certain concentration enzyme solution, and because of surface tension, ADG turns to spherical structure after developing. The optimum technique parameters of this process are presented. Results are presented for experiments and evaluated by profile meter and interference microscope.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jun Yao, Jun Yao, Fuhua Gao, Fuhua Gao, Feng Gao, Feng Gao, Yixiao Zhang, Yixiao Zhang, Jingqin Su, Jingqin Su, Yongkang Guo, Yongkang Guo, Zheng Cui, Zheng Cui, } "Fabrication of refractive microlens array by etching ammonium dichromate gelatin (ADG) with enzyme", Proc. SPIE 4179, Micromachining Technology for Micro-Optics, (18 August 2000); doi: 10.1117/12.395682; https://doi.org/10.1117/12.395682

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