Optical glasses and their uses

Details Optical glasses and their uses Optical glasses and their uses

2004-03-23

2009-10-20

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S042000, C501S079000, C428S426000

Reexamination Certificate

active

07605099

ABSTRACT:
The optical glass has an index of refraction (nd) greater than or equal to 1.70, an Abbé number (νd) greater than or equal to 35 and a density (ρ) less than or equal to 4.5 g/cm3. Optical elements made with this optical glass are especially desirable in optical data transfer applications, particularly in read-write devices with movable read-write heads. The glass compositions required to make optical glass with these properties are described.

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Derwent Abstract 1982-16006E, English Abstract of DE 3130715 A, Feb. 28, 1982.

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