Research on optical simulation system for halftone printing dot with Monte Carlo method

The optical simulation system of printing dot is proposed, which could promote optical study of printing dots properties and improve printing quality. The optical simulation system was built based on Monte Carlo program that can simulate photons propagation path in paper. Once inputting the optical parameters of paper and ink, the optical dot simulation program will simulate millions of photons propagation path in prints. After analyzing statistical information of photons, dot morphology and dot reflective data can be obtained. The results showed that simulation system is versatile and easy to operate, besides the simulated dot shape and reflectance quite approached to realistic printing condition. The optical simulation system could sufficiently accomplish printing dot optical properties simulation, which provides a new way to predict and control printing quality.