On the contrast of equal thickness fringes and the optical components of dark background 等厚条纹对比度与暗背景光学元件
The causes of interfering with the contrast of equal thickness fringes are discussed. The advantages of optical components of dark background are presented. 本文讨论了影响等厚条纹对比度的原因,指出了暗背景光学元件的优点。