激光技术2024，Vol.48Issue(2)：274-280,7.DOI:10.7510/jgjs.issn.1001-3806.2024.02.020
激光投影显示中复合散斑抑制方法的研究
Analysis of composite speckle suppression technique in laser projection display
摘要
Abstract
In order to effectively suppress speckles in laser projection display,a numerical expression of the optical fiber length and the optical field contrast degree at the end of the optical fiber was established based on speckle statistical theory.Based on the integral scattering statistics method,the effect of scattering and moving properties of the multiple scatter diffuser on speckle contrast was analyzed.The experimental results show that the laser speckle contrast ratio can reduce 3.76％by using the composite speckle suppression technology combining a vibrating 10 m multimode fiber with a rotating cascade diffuser.Using composite speckle suppression technique can increase the system's freedom,which contributes to speckle suppression.This study can provide a reference for the research work of composite speckle suppression technique in laser projection display.关键词
激光技术/散斑衬比度/级联位相片/光纤振动/复合散斑抑制技术Key words
laser technique/speckle contrast/cascade diffuser/optical fiber vibration/composite speckle suppression technique分类
物理学引用本文复制引用
黄艳,陈怀熹..激光投影显示中复合散斑抑制方法的研究[J].激光技术,2024,48(2):274-280,7.基金项目
福建省中青年教师教育科研项目(JAT201264) （JAT201264）
福建省教育科学"十四五"规划课题资助项目(FJJKGZ22-039) （FJJKGZ22-039）
