APLANAT'IC, adjective [Gr. to wander.]
An aplanatic telescope is one which entirely corrects the aberration of the rays of light. It is thus distinguished from the achromatic, which only partially corrects the aberration.
Webster's Dictionary 1828
APLANAT'IC, adjective [Gr. to wander.]
An aplanatic telescope is one which entirely corrects the aberration of the rays of light. It is thus distinguished from the achromatic, which only partially corrects the aberration.