- borosilicate crown
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боросиликатный кров
Англо-русский словарь технических терминов. 2005.
borosilicate crown
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Borosilicate glass — is a type of glass with the main glass forming constituents silica and boron oxide. Borosilicate glasses are most well known for having very low coefficient of thermal expansion ( 5 / 0 6 / C at 20oC), making them resistant to thermal shock, more … Wikipedia
Crown glass (optics) — This article is about crown glass as used in optics. For the window glass, see Crown glass (window). Crown glass is type of optical glass used in lenses and other optical components. It has relatively low refractive index (≈1.52) and low… … Wikipedia
Crown glass — Glass Glass (gl[.a]s), n. [OE. glas, gles, AS. gl[ae]s; akin to D., G., Dan., & Sw. glas, Icel. glas, gler, Dan. glar; cf. AS. gl[ae]r amber, L. glaesum. Cf. {Glare}, n., {Glaze}, v. t.] [1913 Webster] 1. A hard, brittle, translucent, and… … The Collaborative International Dictionary of English
Corrective lens — A bifocal corrective eyeglass lens A pair of contact le … Wikipedia
Sellmeier equation — In optics, the Sellmeier equation is an empirical relationship between refractive index n and wavelength λ for a particular transparent medium. The usual form of the equation for glasses [ [http://schott.com/optics devices/english/download/tie 29 … Wikipedia
Glass code — A glass code is a method of classifying glasses for optical use, such as the manufacture of lenses and prisms. There are many different types of glass with different compositions and optical properties, and a glass code is used to distinguish… … Wikipedia
Prisme (optique) — Pour les articles homonymes, voir Prisme. 3 prismes différents … Wikipédia en Français
industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… … Universalium
VERRE — Les verres constituent un ensemble extrêmement varié de produits dont les propriétés sont innombrables. Celles ci dépendent fortement des traitements subis, thermiques notamment. Leur mise au point résulte aujourd’hui des progrès des… … Encyclopédie Universelle
Glass — This article is about the material. For other uses, see Glass (disambiguation). Moldavite, a natural glass formed by meteorite impact, from Besednice, Bohemia … Wikipedia
Dealkalization — is a process of surface modification applicable to glasses containing alkali ions, wherein a thin surface layer is created that has a lower concentration of alkali ions than is present in the underlying, bulk glass. This change in surface… … Wikipedia
