Apochromatic system | Article about apochromatic system by The Free Dictionary
apochromatic system[¦ap·ə·krō¦mad·ik ′sis·təm]
An optical system which is free from both spherical and chromatic aberration for two or more colors.
References in periodicals archive
The result was an apochromatic system
with a 5 [degrees]-by-30 [degrees] field of view - nearly 50 times wider than the conventional Schmidt but still yielding razor-sharp star images from edge to edge.