Definitions
There are 2 meanings of the phrase
Optic Axis.
Optic Axis - as a noun
In a doubly refracting crystal, the line in the direction of which no double refraction occurs
Example: "A crystal may have either one or two optic axes"
A line that passes through the center of curvature of a lens so that light is neither reflected nor refracted
Example: "In a normal eye the optic axis is the direction in which objects are seen most distinctly"
Synonyms (Exact Relations)
principal axisExample Sentences
"The optic axis is the imaginary line passing through the center of a lens or crystal."
"The alignment of the optic axis affects the properties of polarized light passing through a material."
"The optic axis of a birefringent crystal determines the polarization of light."
"The optic axis of a lens is often perpendicular to its surfaces."
"The orientation of the optic axis can be determined using a polarizer and analyzer."
