title: Fabrication of plastic microlens arrays using hybrid extrusion rolling embossing with a metallic cylinder mold fabricated using dry film resist.
abstract: This paper reports a novel and effective method to fabricate microlens arrays on polycarbonate films by hybrid extrusion rolling embossing. The metallic cylinder mold bearing an array of micro-holes is fabricated using photolithography with dry film resist. During the extrusion rolling embossing process, the extruded PC film is immediately pressed against the surface of the roller mold. Under the influence of the rolling pressure and surface tension, an array of convex microlenses is formed. The uniformity and optical properties have been verified. An efficient continuous mass production technique has been demonstrated.
authors: Liang-Ting
authors: LT
authors: Jiang
authors: Tzu-Chien
authors: TC
authors: Huang
authors: Chien-Ren
authors: CR
authors: Chiu
authors: Chih-Yuan
authors: CY
authors: Chang
authors: Sen-Yeu
authors: SY
authors: Yang