Tsgb270 b 270 superwite b 270 superwite is a clear high transmission crown glass modified sodalime glass available in form of sheets, optical rods, profiled rods, strips and. Optical glass 1500s microscopes huygens revolutionized biology. Specification physical and chemical properties b 270 i d 0092 7 b 270 i is a clear high transmission crown glass modified sodalime glass available in form of sheets. There is a huge range of glasses available for which we hold data and some stock.
With its new core composition, this glass enables improved damage resistance and toughness by helping to prevent the deep chips and scratches that. Us6333285b1 glass composition and chemically tempered. Optical glass nbk7 types data sheet optical glass nbk7 types msds. Types of technical glasses in the following, technical glasses are understood to be spe cial glasses manufactured in the form of tubes, rods, hollow vessels and a variety of special shapes, as well as flat glass and glass powder for use mainly in chemistry, laboratory technology, pharmaceuticals, optoelectronics, and house. Cgo offers a variety of standard b270 glass wafers for quick turn usually 23 weeks. The schott glass has a colorless crystalclear appearance and is very stable to the solarization effects that usually occur when a material continuously is exposed to the sun or uvlight. General name inorganic glass casnumber 65997173 ecnumber 2660460 notation glass, oxide, chemicals reachregistration this glass is not subject to registration.
In fact, you can use this table to crossreference our glass to schott b270 and schott bk7 optical glass. B 270 superwite is a clear high transmission crown glass modified sodalime glass available in form of sheets, optical rods, profiled rods, strips and chain. Crown glass is produced from alkalilime silicates containing approximately 10% potassium oxide and is one of the earliest low dispersion glasses. Glass for special applications schott ag specification te technical properties for stock sizes b 270 draw glass 26. Some other materials may also be present at impurity levels. Borosilicate glasses are known for having very low coefficients of thermal expansion. B 270 flat glass to meet a variety of different market demands, schott offers its wellknown b 270 crown glass in sheet glass form. B270 also produced by schott is a crown glass with an economical cost effectiveness and high, uniform transmittance in the visual light and near infrared light and has a col orless apperance. This unique special float glass is manufactured by schott technical glass solutions gmbh using the microfloat process and the latest technology. Glass types glass types glass types moulded optics gmbh steinstrasse 15 35641 schoeffengrund germany phone.
Its used often as a standard of comparison for other glass materials. Bk7 is a borosilicate crown optical glass with high homogeneity, low bubble and inclusion content. The subsequent properties are based primarily on the. Such glass is subjected to less thermal stress and can withstand temperature differentials. Borosilicate glass, once invented by the glass pioneer otto schott and today supplied by several glass companies worldwide, is the industrys gold standard to package pharmaceutical drugs. D263 glass principal uses touch control panels, lcd, solar cells, electroluminescent displays. Manufactured by the updraw method, offers high stability with respect to solarization in combination with high transmission in the visible wavelength range. Bk7 and hk9l are high quality optical glasses that are used whenever the additional benefits of fused silica and fused quartz like for. It contains very few inclusions and is almost free of bubbles. Highly transparent glass schott offers b 270 i crown glass in sheet glass form to meet a wide variety of market demands. Nbk7 is a schott designation for the most common borosilicate crown glass used for a wide variety of visible applications. Full optical design data on nbk7 and other glasses can be. It is considered environmentally friendly as it contains no heavy metals arsenic, antimony, barium, or. The surfaces are fire polished and highly resistant to solar radiation offering a low cost solution.
Schott offers b 270 i crown glass in sheet form, suitable for. Glass properties on globalspec, glassonweb, matweb, glass global a general overview about glass art, history, science, literature, social studies, and technology is available at the corning museum of glass view as pdf, 1. B270 or equivalent windows are costeffective medium performance windows. The relatively hard borosilicate crown glass consists of purest raw materials. Properties that have made eglass so popular in fibreglass and other glass fibre reinforced. Tsg b270 b 270 superwite b 270 superwite is a clear high transmission crown glass modified sodalime glass available in form of sheets, optical rods, profiled rods, strips and chain moulded rod. Please note there is a 10 piece minimum for all products in this listing. B 270 i ultra white glass product information schott offers b 270 i crown glass in sheet glass form suitable for a variety of different market demands, especially suitable for biotech applications. Schott nbk 7 optical glass data sheet sydor optics.
B 270 i, manufactured by a schott specific updraw process, offers high stability with respect to solarization in combination with high. The subsequent properties are based primarily on the measuring results of the very latest standards. B 270 superwite is a universal, economically priced quality glass with high transparency for visible and nearinfrared light. Schott manufactures b 270 i glass using a special updraw process developed by schott. Clear high transmission crown glass modified sodalime glass available in form of sheets, profile rods. Optical properties glasses are among the few solids that transmit visible light thin film oxides might, but scattering from grains limit their thickness mica windows at acoma pueblo glasses form the basic elements of virtually all optical systems worldwide telecommunications by optical fibers. Bk 7 hk9l b270 description bk7 produced by schott and its equivalent hk9l are used for standard optical glass components, or when optical glass is requested for customized items. The subject of the invention is a glass composition intended to be converted into glass ribbon, comprising the constituents below in the following proportions by weight.
Bk7 glass, an optical borosilicate crown glass, has a high transmission and is free of bubbles and inclusions. Bk7 glass optical borosilicate crown glass manufacturer. B 270 i is highly resistant to solar radiation and offers high transmittance in the visible wavelength range. Schott research and development summarized their physical and technical glass properties 1. Crown glass is a type of optical glass used in lenses and other optical components. B 270, manufactured by the updraw method, offers high stability with respect to solarization in combination with high transmission in the visible wavelength range. If you dont see a product meeting your requirements, contact us and let us know what you need. It is characterized by excellent flatness and better resistance to heat. Borosilicate glass is a type of glass with silica and boron trioxide as the main glassforming constituents. B270 or equivalent glass works efficiently from 320nm though to 2600nm with an average transmission of 90% from 400nm to 2000nm. B270 or equivalent glass is a sheet material that is relatively flat. B270i ultra white crown glass windows and plates make a good choice when a simple clear glass material is required and is optically crystal clear with high transmission in the visible range. With superior physical properties, it can be polished like leaded glass, making it suitable for lenses and prisms for lasers and optics.
B 270 superwite optical properties university of chicago. Nbk7 is a very pure universal optical glass made by schott. Sio 2 5571% al 2 o 3 2% mgo 411%, and 8% if al 2 o 3 heightened awareness of cleanliness and hygiene. Valley designs wide selection of color filter glass is comparable to schott b270 glass and schott bk7 glass.
B 270 i ultrawhite glass glass manufacturers glass. Bk7 is a high quality optical glass that is used whenever the additional benefits of fused silica are not required. Color neutrality and outstanding transmission properties are two features of b270 superwite that have opened up a wide range of possible. Hk9l are used for standard optical glass components, or when. Technical glasses glass manufacturers glass processing. Typical technical data of goldseal glass microslides soda lime glass chemical composition approximate silicon dioxide 72. Schott b270 for 3202600nm transmission material specification. It is by far the most common material for many optical glass applications, because it offers good optical properties and a reasonable price. Nbk7 optical borosilicatecrown glass from schott bk 7. Its superior composition allows a deeper layer of chemical strengthening than is. Since bk7 performs well in all chemical tests, and no additional or special handling is required, costs of manufacturing are reduced. B 270 i glass is manufactured by using a special updraw. Bk7 and hk9l are high quality optical glasses that are used whenever the.
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