dispersion of birefringence meaning in English

双折射率色散

Long - term studies have found that an achromatic retardation plate can be constructed by combining multiple wave - plate together . under certain combined condition , the spectral dispersion of birefringence in each plate cancels out over a defined spectral range
在长期的实验研究中发现，如果将多个延迟片进行复合，当满足一定的复合条件时，复合波片也可以实现消色差的目的。