Schott Ag

Schott Glas

Ulrich Siepe

Ute Woelfel

Silke Wolff

The optical glass has an index of refraction (n) greater than or equal to 1.70, an Abb&#xe9; number (&#x3bd;) greater than or equal to 35 and a density (&#x3c1;) less than or equal to 4.5 g/cm. 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.

Optical glasses and their uses

The optical glass has an index of refraction (n ) greater than or equal to 1.70, an Abb&eacute; number (&ngr; ) greater than or equal to 35 and a density (&rgr;) less than or equal to 4.5 g/cm . 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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Wiesbaden, Germany

Ulrich Siepe