Investigation on Transmittance and Uniformity of Light Diffuser Plate of Filling Coefficient of Microstructure

Abstract:

In this paper, the filling coefficient is defined by the ratio between effective by light area and the total area of the light diffuser when a beam of light strikes it, namely micro lens array structure of configuration density. In order to analyze the relation between the filling coefficient of the microstructure and the optical properties of the diffuser, the filling coefficient is expressed as center-to-center spacing of the microstructure.As the the center-to-center spacing increases,the filling coefficient becomes smaller.and the relation between the filling coefficient of the diffuser microstructure and the optical properties of diffuser have also been simulated by the Light Tools software based on the Monte-Carlo Method. Then the test sample which has the same aspect ratio and filling coefficient with the simulation sample has been obtained by using micro injection casting, Comparing the haze and transmittance of the experimental diffuser with the simulation result, the relation between the filling coefficient of the diffuser microstructure and the optical properties of diffuser have been gotten.

• Periodical: Advanced Materials Research (Volume 683)
• Pages: 185-190
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.683.185
• Online since: April 2013
• Authors: Xiao Long Gao, Da Ming Wu, Ya Jun Zhang, Xiu Ting Zheng, Yan Liu
• Keywords: Filling Coefficient, Haze, Microstructure, Polymer Light Diffuser, Transmittance, Uniformity

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