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Carl Kellner (1826 –1855)
Carl Kellner may refer to: *Carl Kellner (optician) (1826–1855), German inventor of the "Kellner eyepiece" *Carl Kellner (mystic) (1851–1905), Austrian chemist and mystic {{Hndis, name=Kellner, Carl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Kellner (optician)
Carl Kellner (March 26, 1826 – May 13, 1855) was a German mechanic and Autodidacticism, self-educated mathematician who founded in 1849 an "Optical Institute" that later became the Leitz company, makers of the Leica Camera, Leica cameras. Biography Carl Kellner was born in Hirzenhain, Wetteraukreis, in Hesse. In 1849 he founded in Wetzlar a company called ''"Optisches Institut"'' for the production of lens (optics), lenses and microscopes. Kellner had invented a new achromatic lens, achromatic combination of lenses for an eyepiece, published in his treatise ''Das orthoskopische Ocular, eine neu erfundene achromatische Linsencombination'', that was able to produce an image with correct Perspective (visual), perspective and without the distortions that were usual for other optical instruments of the time. His invention is still useful and known as the eyepiece#Kellner or "Achromat", Kellner eyepiece. Legacy After his early death in Wetzlar in 1855 from tuberculosis at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |