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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.
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.
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.
Bushnell introduced the AR Optics 1-4 scope in 2018. It has a 30mm tube and has an objective lens diameter of 24mm. It has caliber-specific reticles that are illuminated for use in low-light. The AR Optics 1-4 is intended for use with modern sporting rifles. [31]
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.
A reticle, or reticule [1] [2] also known as a graticule, is a pattern of fine lines or markings built into the eyepiece of an optical device such as a telescopic sight, spotting scope, theodolite, optical microscope or the screen of an oscilloscope, to provide measurement references during visual inspections.
The Bausch and Lomb Keratometer is a one position keratometer that gives readings in dioptric form. It differs from the Javal-Schiotz in that object size is fixed, image size is the manipulable variable.
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