optic axis

/ˌɑptɪk ˌæksəs/
IPA guide

Other forms: optic axises

Definitions of optic axis
  1. noun
    in a doubly refracting crystal, the line in the direction of which no double refraction occurs
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    type of:
    axis
    a straight line through a body or figure that satisfies certain conditions
  2. noun
    a line that passes through the center 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”
    synonyms: principal axis
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    type of:
    axis
    a straight line through a body or figure that satisfies certain conditions
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