Optic-axialAngle and refractive index are two important optic constants for the identification of transparent minerals.
光轴角(2 V)和折射率值是透明矿物的重要光学常数。
2
The expression of opticaxialAngle and ray axial Angle on light wave plane can be obtained by using the curve equations of the wavefront of light wave and normal plane of light wave.