A kind of diffraction element modulating phase information by LC space light modulator to get a zoom fresnel lens, as well as the using of said element to optical imaging system, is introduced.

 
  • 本文介紹一種以液晶空間光調制器作為調制位相信息的衍射元件,獲得可變焦長(cháng)的菲涅耳透鏡,以及該元件在光學(xué)成像系統中的應用。
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