WordNet: optinen akseli, pääakseli
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"
- hypernym keskiviiva, lävistäjä
optinen akseli
- (englanti) optic axis (synonyymi)
pääakseli
- (englanti) principal axis (synonyymi)