Of an arrangement of mirrors, lenses, etc. used in reflecting telescopes and microwave antennas, having its focus or transmission point near or behind the center of the main mirror.
Cassegrain Sentence Examples
It may be applied to the open end of a reflecting telescope, either of the Newtonian or the Cassegrain construction."
A third form of reflecting telescope was devised in 1672 by Cassegrain (Journal des Scavans, 1672).
Fewer telescopes have been made of this than perhaps of any other form of reflector; but in comparatively recent years the Cassegrain has acquired importance from the fact of its adoption for the great Melbourne telescope, and from its employment in the 60-in.
The classical Cassegrain In the classical Cassegrain telescope, the primary mirror is paraboloid shaped.