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。
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.
该文就提高双棱镜干涉测波长的测量精度问题展开探讨，并提出一种简单而有效的实验方法。
How to improve the measurable accuracy of wavelength of light wave in biprism interference of light is discussed in this paper, and a simple, efficient experimental way is derived.
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