四分之一波片 QWP ; quarter wave plate
单四分之一波片法 Senamont Method
双四分之一波片法 Tardy Method
消色差四分之一波片 achromatic quarter wave plate
四分之一光波〔晶〕片 quarter undulation plate
在透射模式中,不需要消色差的四分之一波片。
For the transmissive mode, no achromatic quarter-wave film is needed.
可将四分之一波片卸去,并按平面偏振光法或内插法来决定其主应力方向。
The directions can be obtained by removing the quarter-wave plate and following the procedure for plane polarized light or by interpolation.
该结构用直角棱镜代替了普通的四分之一波片,提高了光学电压互感器的稳定性。
The structure substituted rectangular prism for common quarter wave, and improved the stability of the optical voltage transformer.
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