5.双折射 Double refraction 1)双折射现象e-光 calcite O光 方解石 藏新谢 unpolarizedhlight 自然光 The“ double- bending?” of a beam transmitted through calcite, is called double refraction 2) the ordinary ray(O-ray) and the extraordinary ray(e-ray).(1687年惠更斯研究) a) two beams are polarized light with their planes of vibration at right angles to each other5. 双折射 Double Refraction 1) 双折射现象 unpolarized light 自然光 O光 e-光 双折射 双折射 calcite 方解石 The “double-bending” of a beam transmitted through calcite, is called double refraction. 2）the ordinary ray (O-ray) and the extraordinary ray (e-ray).（1687年惠更斯研究） a）two beams are polarized light with their planes of vibration at right angles to each other