An experimental investigation of the combination of a long focal distance Bragg-Fresnel lens with a bimorph mirror is described.
描述了对长焦距布拉格-菲涅耳透镜与可变曲率半径反射镜组合所做的实验研究。
2
The wavelengths are determined usually by measuring the widths of interference fringes in many experiments such as Young's slits, Fresnel biprism, bimirror and Lloyd's mirror etc.
杨氏双缝、菲涅耳双棱镜、双面镜以及劳埃镜等实验测定光波波长时，均是用测量干涉条纹宽度法。
3
Using new technologies of static pressure bearing, static pressure guide and gas bearing, the mold of Fresnel lenses mirror was precisely manufactured.