A Study on the Walk-Off Angle in the Optical Indicatrix s Principal Section of Uniaxial Crystal; Luminaire designed to be suspended from a cable with its main beam axis at right angles to the axis of the road. 单轴晶光率体主截面内离散角的研究利用电缆进行悬挂的灯具,其主光轴与道路主轴成直角。
Principal Plane of Ray and principal Section of Crystal 光线的主平面和晶体的主截面
The refraction of e beam within the principal cross section of a uniaxial crystal studied by computer assistance 单轴晶体主截面内e光折射角和阵面角的计算和作图