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。