అర్థం : In a doubly refracting crystal, the line in the direction of which no double refraction occurs.
ఉదాహరణ :
A crystal may have either one or two optic axes.
అర్థం : A line that passes through the center of curvature of a lens so that light is neither reflected nor refracted.
ఉదాహరణ :
In a normal eye the optic axis is the direction in which objects are seen most distinctly.
పర్యాయపదాలు : principal axis
Optic axis meaning in Telugu.