略語大辞典 [Opt] 38 QWP quarter-wave plate 四分の一波長板. 移相板.quarter-wave plate; or QWR(quarter-wave retarder); an optical device that gives the amount of phase shift difference between two orthogonal polarizations; [Opt:L:Phys]. 丸善「略語大辞典」JLogosID : 11857295