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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. [4] [5] The company was founded in Rochester ...
Originally introduced by Bausch & Lomb in 1953, the product line was sold to Milton Roy in 1985. Milton Roy sold its instrument group to Life Sciences International, renamed Spectronic Instruments, Inc. in 1995. Spectronics Instruments was purchased by Thermo Optek in 1997, renamed Spectronic-Unicam in 2001 and Thermo-Spectronic in 2002.
The title of their invention was simply an "optometrist instrument", and the text described it as an optometer. Patent 1,804,690 was granted to the Greens and Hunsicker in 1931, and sold to Bausch & Lomb (B&L), which had them redesign it (patent 1,873,356, granted 1932). B&L trademarked it as "Greens' Refractor" and introduced it in 1934.
Keratometer. A keratometer, also known as an ophthalmometer, is a diagnostic instrument for measuring the curvature of the anterior surface of the cornea, particularly for assessing the extent and axis of astigmatism. It was invented by the German physiologist Hermann von Helmholtz in 1851, although an earlier model was developed in 1796 by ...
A stereoscopic rangefinder or stereoscopic telemeter [1] is an optical device that measures distance from the observer to a target, using the observer's capability of binocular vision. It looks similar to a coincidence rangefinder, which uses different principles and has only one eyepiece. German instruments tended to use the stereoscopic ...
John Jacob Bausch. 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.
This page is dedicated specifically to listing surgical instruments used in general surgery. Instruments can be classified in many ways - but broadly speaking, there are five kinds of instruments. Scalpels, scissors, and saws are the most traditional. Elevators can be both cutting and lifting/retracting.
Ernst Gundlach (1834–1908) was a German-American inventor specialising in the design of optical instruments. Life and career. Gundlach was born in Pyritz, East Prussia. At the age of 15, he was apprenticed to Carl Friedrich Lewert in Berlin, Germany to learn how to make optical instruments. After four years, having served his apprenticeship ...
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