Cassegrain reflector (English, noun)
expansion: Cassegrain reflector (plural Cassegrain reflectors)
Senses:
glosses: A combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas, the main characteristic being that the optical path folds back onto itself, relative to the optical system's primary mirror entrance aperture.
Forms:
form: Cassegrain reflectors
tags: plural