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便携式投影仪投影物镜设计

Journal of Applied Optics(2019)

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Abstract
针对当前投影仪光源功耗大,光投影稳定性差,系统结构大的缺点,利用Zemax软件,设计出了一款大视场,短焦距,结构紧凑,适用于便携式投影仪的投影物镜系统.经过优化处理,最终获得的结构具有良好的成像质量,在空间频率为80lp/mm处中心视场MTF≥0.7,0.8视场MTF≥0.6,边缘视场处MTF≥0.48,畸变小于3%,满足给出的设计指标.并且在规定和要求的像元尺寸范围内能量集中度大于85%,照度曲线0.8倍视场以内整体高于90%,能量集中度高,照度均匀性好,与便携式投影仪能很好地搭配使用.
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