Diopter

Dioptrics (formerly anaclastics ) is the branch of optics that deals with light-refracting systems. It is differentiated from the catoptric , which deals with reflective systems. The Latin form " Dioptrice " is the title of an important work by Johannes Kepler on the subject.

In light microscopy , condensers , which are made of glass lenses, are called dioptric to differentiate them from catoptric ones, which are made of mirrors. So dioptric condensers are the norm. Allvar Gullstrand received the 1911 Nobel Prize in Physiology or Medicine “for his work on the dioptrics of the eye ”.

A catadioptric system, for example a catadioptric telescope , has both reflective (catoptric) and refractive (dioptric) elements. Further examples are mirror lens objectives and catadioptric dialytes .

Individual evidence

↑ Cf. Meyers Großes Konversations-Lexikon: " Dióptrik ".
^ ^A ^b Eugene Hecht: Optics . 5th edition. Oldenbourg Verlag, Munich 2009, ISBN 978-3-486-58861-3 , p. 298, 369 (English: Optics. 4th edition . Translated by Anna Schleitzer).
↑ Heinz Appelt: Introduction to microscopic examination methods . 4th edition. Academic publishing company Geest & Portig KG, Leipzig 1959, p. 106 f .

[1] Cf. Meyers Großes Konversations-Lexikon: " Dióptrik ".

[Hecht-2] A ^b Eugene Hecht: Optics . 5th edition. Oldenbourg Verlag, Munich 2009, ISBN 978-3-486-58861-3 , p. 298, 369 (English: Optics. 4th edition . Translated by Anna Schleitzer).

[3] Heinz Appelt: Introduction to microscopic examination methods . 4th edition. Academic publishing company Geest & Portig KG, Leipzig 1959, p. 106 f .