catadioptric

listen to the pronunciation of catadioptric
Englisch - Englisch
Of or pertaining to optical systems that employs both refractive (dioptric) and reflective (catoptric) elements
Any of a number of compromise telescope designs, using both a lens and mirrors Examples are the Schmidt-Cassegrain and Maksutov-Cassegrain Because the light path is folded twice, the telescope is very compact These are pretty expensive Pictures can be seen in the ads in any issue of a popular astronomy magazine: the Meade 2080 and the Celestron C-8 are examples of Schmidt-Cassegrain; the Celestron C-90 and Questar are examples of Maksutov-Cassegrain
{s} pertaining to refraction and reflection of light (Optics)
Referring to an optical system which uses both reflection (mirrors) and refraction (lenses) This also describes the unwanted effect of lens elements reflecting images inside a compound camera lens Undesirable catadioptric effects include ghosting and lens flares
A series of telescopes comprising a mirror with a full aperture lens ahead of it, which is used to correct for spherical aberration in the primary mirror
Of of pertaining to a lens (or optical system) that employs both refraction and reflection
Pertaining to, produced by, or involving, both the reflection and refraction of light; as, a catadioptric light
An optical system in which both reflecting and refracting curved surfaces are used to form an image Some ''reflecting" objective lenses, as well as video projection systems, are catadioptric; the latter uses a Schmidt plate to correct the spherical aberration introduced by the spherical reflecting mirror
(also spelt catadioptic): Reflecting telescope, so-called because the beam of light is 'folded', i e reflected, back through a hole in the main mirror, before reaching the eyepiece The effect is to increase the telescope's focal length, thus producing a more portable but also costlier instrument Catadioptrics use a lens-like correcting plate in the front for spherical aberration The commonest types are the Schmidt-Cassegrain and Maksutov-Cassegrain