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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 self-educated mathematician who founded in 1849 an "Optical Institute" that later became the Leitz company, makers of the 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 lenses and microscopes. Kellner had invented a new achromatic combination of lenses for an eyepiece An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as Optical telescope, telescopes and microscopes. It is named because it is usually the lens that is closest to the eye when someone looks thro ..., published in his treatise ''Das orthoskopische Ocular, eine neu erfundene achromatische Linsencombination'', that was able to produce an image with correct perspective and without the distortions that were usual for other optical instruments of the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |