A low speckle laser pico-projector using dynamic light scattering liquid crystal devices

Yong Han Chen, Jui Wen Pan*, Shie Chang Jeng

*此作品的通信作者

研究成果: Article同行評審

摘要

A dynamic light scattering liquid crystal (DLS-LC) device is applied to reduce speckle from a laser pico-projector. The DLS-LC device produces time-varying scattering patterns, which can decrease the degree of spatial and temporal coherence of the laser and achieve a very effective reduction in the speckle. The influence of the amplitude and frequency of the applied electric field for the DLS-LC device on the light scattering characteristics and speckle contrast are studied. The speckle contrast is reduced by as much as 62% with a low electric field amplitude (4.2 V/μm).

原文English
文章編號102305
期刊Displays
75
DOIs
出版狀態Published - 12月 2022

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