By the use of the Jones matrix of wave plates, the common measurement formula of wave plates was introduced, and a novel method based on phase shifting was proposed to measure the phase retardation for many kinds of wave plates.

• 在波片测量时，无需被测波片的光轴和补偿片的光轴成45°要求，即不必知道波片的具体快慢光轴方位，只要将波片平行放入。