Assertion: newtonian telescope's mirror | /r/HasProperty | catoptric
Facets:
Source sentences:
text: reflectors, which use mirrors (catoptrics)
text: The word catadioptric is derived by combining the term for an optical system that forms images by using mirrors (catoptric) with the one for a system that uses lenses (dioptric).
text: A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses (dioptrics) and curved mirrors (catoptrics).
text: Reflectors use mirrors (catoptrics)