- Kellner eyepiece
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/kel"neuhr/, Optics.a Ramsden eyepiece having an achromatic lens, used in binoculars.[after Carl Kellner (1826-55), German opticist and lens maker]
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Universalium. 2010.
Kellner eyepiece
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Kellner eyepiece — /kel neuhr/, Optics. a Ramsden eyepiece having an achromatic lens, used in binoculars. [after Carl Kellner (1826 55), German opticist and lens maker] … Useful english dictionary
Eyepiece — For the device for looking through a camera, see viewfinder. A collection of different types of eyepieces. An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is… … Wikipedia
Carl Kellner (optician) — For other people of the same name, see Carl Kellner (disambiguation). Carl Kellner Carl Kellner (March 26, 1826 – May 13, 1855) was a German mechanic and self educated mathematician who founded in 1849 an Optical Institute that later became the… … Wikipedia
Carl Kellner — could refer to: *Carl Kellner (optician), (1829 ndash; 1855), German inventor of the Kellner eyepiece and founder of a company for optical instruments that would later become the Leitz company, producers of the Leica cameras. *Carl Kellner… … Wikipedia
Timeline of telescope technology — Timeline of telescope technology* c.2560 BC c.860 BC Egyptian artisans polish rock crystal, semi precious stones, and latterly glass to produce facsimile eyes for statuary and mummy cases. The intent appears to be to produce an optical illusion.… … Wikipedia
Oculaire — Une collection de différents oculaires. Un oculaire est un système optique complémentaire de l objectif. Il est utilisé dans les instruments tels que les microscopes ou les télescopes pour agrandir l image produite au plan focal de l objectif. Un … Wikipédia en Français
