English Explanatory Dictionary

Cassegrain reflector

English dictionary entry

Meanings

noun
  1. 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.

Word forms

Cassegrain reflector Cassegrain reflectors

Etymology

Named after Laurent Cassegrain, its probable inventor.

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