消色差复合延迟片

Achromatic Composite Retardation Plate

让在某一波长的1/4波片和1/2波片的两快轴的夹角为60°,组成复合1/4波片,则该复合片在该波长附近是消色差的;类似地,也得到了消色差1/2波片,并被实验所证实。

Make a 60°angle between the two fast axes of a 1/4 waveplate and a 1/2 waveplate of the same wave length, then a composite waveplate is formed, which is achromatic near this wave length; similarly, an achromatic 1/2 waveplate is obtain too, and they are proved by experiment.