holographic concave diffraction grating 全息凹面衍射光栅
deep-etched concave diffraction grating edg 深刻蚀凹面衍射光栅
concave holographic diffraction grating 平场凹面光栅
In this paper, the flat field polychromator (SPD - I) using an aberration - corrected flat fie1d holographic concave diffraction grating as both spectroscopic and oPtical imaging element is re-POrted.
报道一种利用象差校正平场全息凹面衍射光栅作为分光和成象元件的平场多色仪，该多色仪具有谱面平直、使用波段宽、集光本领强、体积小等优点。
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