Lyot消偏振鏡

由兩個結合在一起的石英波片組成，Lyot消偏振鏡是可將偏振光或部分偏振光變為非偏振光的被動光學元件。這兩個波片的厚度比為2:1。放置於特別的位置，其光軸被定向45°分開，從而產生了不同程度的橢圓與線偏振光，並消除了輸入光束的偏振。

注意：Lyot消偏振鏡不適用於單色光。

Lyot Depolarizers are designed for polychromatic light from 200 - 2300nm. Each Lyot Depolarizer features a minimum wavelength bandwidth of 50nm, which represents approximately 85% depolarization. A bandwidth of greater than 100nm is required for complete depolarization.