Fabrication of the polymer surface-relief diffusers by using the extrusion roller embossing process

Abstract

This paper an innovative and effective extrusion roller embossing process, which enables the rapid fabrication of surface-relief polymer diffusers. The metallic roller mould bearing the microstructures is fabricated using the chemical corrosion method. During the extrusion roller embossing process, the extruded polymer sheet is immediately pressed against the surface of the roller mould. Under the proper processing parameters, high-performance polymer diffusers have been successfully fabricated. The shape, uniformity and optical properties of fabricated diffuser have been verified. The experimental results suggest that the extrusion roller embossing process could provide an effective way for continuous fabricating high-performance polymer surface-relief diffusers with the high-performance, low cost and high throughout. Keywords-extrusion roller embossing; fabrication; diffuser;