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three-mirror anastigmat

(type of reflecting telescope)

Three-mirror anastigmat is a reflector telescope design with three mirrors chosen as to minimize aberration. The primary mirror is concave parabolic, the secondary, convex spherical, and the tertiary, concave spherical. Examples:


(telescope type,reflector)
http://en.wikipedia.org/wiki/Three-mirror_anastigmat

Referenced by:
reflector telescope

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