短語詞組短語object -lens 物鏡object scanning lens free 無掃描物鏡object t lens 物鏡Gauss double type object -lens 高斯光束mathematician twice type object -lens 雙高斯型物鏡Object lens size 取景物鏡尺寸object lens focal length 物鏡焦距長度harmonic diffractive object lens 諧衍射 返回 object lens