title: Fabrication of polymer micro-lens array with pneumatically diaphragm-driven drop-on-demand inkjet technology.
abstract: The paper reports an effective method to fabricate micro-lens arrays with the ultraviolet-curable polymer, using an original pneumatically diaphragm-driven drop-on-demand inkjet system. An array of plano convex micro-lenses can be formed on the glass substrate due to surface tension and hydrophobic effect. The micro-lens arrays have uniform focusing function, smooth and real planar surface. The fabrication process showed good repeatability as well, fifty micro-lenses randomly selected form 9 × 9 miro-lens array with an average diameter of 333.28μm showed 1.1% variations. Also, the focal length, the surface roughness and optical property of the fabricated micro-lenses are measured, analyzed and proved satisfactory. The technique shows great potential for fabricating polymer micro-lens arrays with high flexibility, simple technological process and low production cost.
authors: Department of Mechanical Engineering, Xiamen University of Technology, Xiamen, 361024, China. xiedan@xmut.edu.cn
authors: Dan
authors: D
authors: Xie
authors: Honghai
authors: H
authors: Zhang
authors: Xiayun
authors: X
authors: Shu
authors: Junfeng
authors: J
authors: Xiao