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Carl P. Pulfrich (September 24, 1858, Burscheid, Rhine Province – August 12, 1927, Baltic Sea, drowned when his canoe capsized) was a German physicist, noted for advancements in optics made as a researcher for the Carl Zeiss company in Jena around 1880, and for documenting the Pulfrich effect, a psycho-optical phenomenon that can be used to create a type of 3-D visual effect. Carl Pulfrich was employed to develop stereoscopy from being pure entertainment to a powerful quantitative technique. His apparatus to measure distances stereoscopically was first presented in Munich in 1899. This was further developed to a stereo-comparator which was presented in Hamburg in 1901. Stereoscopy was used for topographic geography, astronomy studies and the Marine because everything could be done quick and with a high degree of precision. Pulfrich pioneered the use of stereoscopy from planes for topographic purposes. Carl Pulfrich had realised that people in whom visual function differed between both eyes perceived the stereo-effect: His comment implies a list of diseases in which the stereo-effect can occur. Puflrich wonders why the stereo-effect was not noted earlier because of the abundance of swinging clock pendulums: == Pulfrich Refractometer == A Pulfrich Refractometer measures refractive index of a sample by measuring the critical angle of the sample with a well characterized prism. It was invented by Carl Pulfrich and Max Wolz at the Zeiss factory. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Carl Pulfrich」の詳細全文を読む スポンサード リンク
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