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U.S. patent 182,919 – Improvement in Microscopes – 1876 – October 3 – A screw-thread coarse focus, parallel spring fine focus, swinging substage.; U.S. patent 198,607 – Improvement in stages for Microscopes – 1877 – December 25 – Sliding stage used on many Bausch & Lomb microscopes.
Bausch & Lomb (since 2010 stylized as Bausch + Lomb [2]) is an American-Canadian eye health products company based in Vaughan, Ontario, Canada. It is one of the world's largest suppliers of contact lenses , [ 3 ] lens care products, pharmaceuticals, intraocular lenses , and other eye surgery products.
Leica Microsystems GmbH is a German microscope manufacturing company. It is a manufacturer of optical microscopes, equipment for the preparation of microscopic specimens and related products. There are ten plants in eight countries with distribution partners in over 100 countries.
Using the Bausch & Lomb Spectronic 20 Colorimeter, 1962. The Spectronic 20 is a brand of single-beam spectrophotometer, designed to operate in the visible spectrum [1] across a wavelength range of 340 nm to 950 nm, with a spectral bandpass of 20 nm. [2] [3] It is designed for quantitative absorption measurement at single wavelengths. [1]
In November and December 1941, the United States National Defense Research Committee conducted extensive tests between the American Bausch and Lomb M1 stereoscopic rangefinder and the British Barr and Stroud FQ 25 and UB 7 coincidence rangefinders, and concluded "that the tests indicate no important difference in the precision obtainable from the two types of instrument – coincidence and ...
The firm renamed itself Bushnell Performance Optics. Three years later, Bushnell retired as vice-president of Bausch & Lomb. [2] In 1999, Bausch & Lomb sold Bushnell Performance Optics to the private equity firm Wind Point Partners through a recapitalization of Bushnell's then parent company, Worldwide Sports & Recreation. [3] [4] [5]
Her 1938 Bausch & Lomb microscope was displayed at the Black History Museum and Cultural Center in Richmond in 2018. [20] References
John Jacob Bausch (born Johann Jakob Bausch; July 25, 1830 – February 14, 1926) was a German-American maker of optical instruments who co-founded Bausch & Lomb (with Henry Lomb). Over six decades he transformed his small, local optical shop into a large-scale international enterprise, pioneering the American optical industry.
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