The diffractive optical elements(DOEs) used in imaging systems has many advantages, such as achromatization and thermal compensation besides the features of saving in mass and volume.
采用衍射光学元件除了能减小成像系统的体积和重量外 ，还具有许多传统光学元件无法比拟的优越性 ，如消色差和热补偿功能等。
Abstract : Ion beam etching technologies for developing large aperture Diffractive Optical Elements (DOEs) were reviewed.
摘要 ： 总结了大尺寸衍射光学元件离子束刻蚀技术的研究进展。
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