Flint glass meaning
WebLead oxide being added to the mixture a dense, very brilliant, but soft glass (flint glass) results. "A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public" by … WebFlint glass (Chem)A soft, heavy, brilliant glass, consisting essentially of a silicate of lead and potassium. It is used for tableware, and for optical instruments, as prisms, its density …
Flint glass meaning
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WebFlint glass (Chem) A soft, heavy, brilliant glass, consisting essentially of a silicate of lead and potassium. It is used for tableware, and for optical instruments, as prisms, its density giving a high degree of dispersive power; -- so called, because formerly the silica was obtained from pulverized flints. 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. The currently known flint glasses have refractive indices ranging between 1.45 and 2.00. A concave lens of flint glass is commonly combined with a convex lens of crown glass to produce an achromatic doublet le…
WebSearch flint glass and thousands of other words in English definition and synonym dictionary from Reverso. You can complete the definition of flint glass given by the … WebFlint glass definition, an optical glass of high dispersion and a relatively high index of refraction, composed of alkalis, lead oxide, and silica, with or without other bases, sometimes used as the diverging lens component of an achromatic lens. See more.
WebJan 18, 2024 · Like all of Gray’s work, each piece is grounded in a design philosophy that draws on nature, the corporeal and organic phenomenon. Gray’s work is on display in … Webflint glass in American English noun Optics an optical glass of high dispersion and a relatively high index of refraction, composed of alkalis, lead oxide, and silica, with or …
WebApr 11, 2024 · Pair Of Antique Flint Sandwich Glass Whale Oil Lamps, Diamonds And Ribs EAPG. $175.00 + $13.21 shipping. Antique 1800's EAPG Early American Pattern Footed Glass Victorian Whale Oil Lamp. Sponsored. ... Was US $229.95 What does this price mean? Recent sales price provided by the seller.
Webˈflint 1 : a massive hard dark quartz that produces a spark when struck by steel 2 : an implement of flint used in prehistoric cultures 3 a : a piece of flint b : a material used for … how do i control my appetiteWebUses an equiconvex crown glass lens with R 1 = R 2, and a second flint glass lens with R 3 = -R 2. The back of the flint glass lens is flat. A Littrow doublet can produce a ghost image between R 2 and R 3 because the lens surfaces of the two lenses have the same radii. Fraunhofer doublet (Fraunhofer objective) how do i control my mouse movementsWebApr 11, 2024 · The initial value of sulfites was 20 ppm. Standard 0.75 L Antique Green and Flint glass bottles were used for this research work. 2.2. Intensive irradiation equipment set-up ... although to a greater extent in wines treated in Flint bottles. These results mean that the irradiation induced a loss of red color, which agrees with the decrease in ... how do i control my stressWebFlint glass Glass Dictionary Definition A misnomer for English and American lead glass. The term came into use in 1674, when George Ravenscroft’s new glass formula included ground, calcined flint as a source of silica. In the 18th and 19th centuries, the term was applied to decolorized glass, even when it contained no flint. Example: how do i control my sugar cravingsWebFlint glasses, because of their high index, feature higher Fresnel reflection loss and thus should always be specified with an anti-reflection (AR) coating. Figure 1: Sample Optical Glass Transmittance Curves … how much is outlast trials gonna costWebflint glass n. A soft, fusible, lustrous, brilliant lead-oxide optical glass with high refraction and low dispersion. Also called lead glass. American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. how do i control my computer fansWebFlint glassis optical glass that has relatively high refractive index and low Abbe number. Flint glasses are arbitrarily defined as having an Abbe number of 50 to 55 or less. The currently known flint glasses have refractive indices ranging between 1.45 and 2.00. how much is outlast 2