| 释义 |
Noun: optic axis- In a doubly refracting crystal, the line in the direction of which no double refraction occurs
"a crystal may have either one or two optic axes" - A line that passes through the centre of curvature of a lens so that light is neither reflected nor refracted
"in a normal eye the optic axis is the direction in which objects are seen most distinctly"
- principal axis
Derived forms: optic axes Type of: axis Encyclopedia: Optic axis |