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Optical glass refers to a quality of glass suitable for the manufacture of optical systems such as optical lenses, prisms or mirrors.Unlike window glass or crystal, whose formula is adapted to the desired aesthetic effect, optical glass contains additives designed to modify certain optical or mechanical properties of the glass: refractive index, dispersion, transmittance, thermal expansion and ...
Glasses are classified using the Schott Glass letter-number code to reflect their composition and position on the diagram. Flint glass is optical glass that has relatively high refractive index and low Abbe number (high dispersion). Flint glasses are arbitrarily defined as having an Abbe number of 50 to 55 or less.
*Note: this list includes joint-ventures based in Michigan, subsidiaries of Michigan-based companies also located in Michigan, and companies based in Michigan currently owned or controlled by private equity, venture capital, or other similar entities. Below is a separate list of outside companies with a significant presence in Michigan.
Van Buren Township is a charter township in Wayne County in the U.S. state of Michigan.A western suburb of Detroit, Van Buren Township is located roughly 28 miles (45.1 km) southwest of downtown Detroit, and 17 miles (27.4 km) southeast of Ann Arbor.
Greenville is a city in the Lower Peninsula of the U.S. state of Michigan. With a population 8,816 at the 2020 census , [ 3 ] it is the most populous city in Montcalm County . The city was the birthplace of the Meijer superstore chain.
Welcome to Belleville Sign. Belleville is a city in Wayne County in the U.S. state of Michigan.A western suburb of Detroit, Belleville is located roughly 29 miles (46.7 km) southwest of downtown Detroit, and 18 miles (29.0 km) southeast of Ann Arbor, and is completely surrounded by Van Buren Township.
As of the census [6] of 2010, there were 350 people, 137 households, and 94 families living in the village. The population density was 318.2 inhabitants per square mile (122.9/km 2).
Montrose is a city in Genesee County in the U.S. state of Michigan.The population was 1,743 at the 2020 census.Once part of the surrounding Montrose Township, the city itself incorporated in 1980, and both are now administered autonomously.