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Definition of Crown glass
1. Noun. A glass blown into a globe which is later flattened and spun to form a disk.
2. Noun. Optical glass of low dispersion and low refractive index.
Medical Definition of Crown glass
1. A compound of lime, potash, alumina, and silica; commonly used in lenses; has a low dispersion (52.2) relative to index of refraction (1.523). (05 Mar 2000)
Lexicographical Neighbors of Crown Glass
Literary usage of Crown glass
Below you will find example usage of this term as found in modern and/or classical literature:
1. Encyclopaedia Britannica: A Standard Work of Reference in Art, Literature (1907)
"Having crown glass was, in the early part of t ho present century, ... Mi.rr the
introduction of sheet-glass making, the crown-glass industry has steadily ..."
2. A Treatise on the Origin, Progressive Improvement and Present State of the by George Richardson Porter, John Holland (1846)
"dualities of crown glass.—German Glass.— Broad Glass. ... THE name of crown glass
is given to the best kind of glass commonly used in making windows, ..."
3. Spectrum Analysis in Its Application to Terrestrial Substances, and the by Heinrich Schellen, Jane Lassell, Caroline Lassell (1885)
"32 exhibits the various dispersive powers of flint-glass, crown-glass, and water.
If the spectrum of the flint-glass prism was exactly twice the length of ..."
4. Outlines of Industrial Chemistry: A Text-book for Students by Frank Hall Thorp, Warren Kendall Lewis (1916)
"crown glass is a form of blown glass in which the globular balloon first ...
This must be cut out, so large window panes cannot be made from crown glass. ..."
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