OPTICAL GLASS, PREFORM, AND OPTICAL ELEMENT

The optical glass contains, on a mass % basis, 20.0% to 40.0% of a P2O5 component, 25.0% to 50.0% of a Nb2O5 component, and 3.0% to 30.0% of a total mass (Na2O+K2O), wherein a temperature coefficient (40° C. to 60° C.) of a relative refractive index (589.29 nm) is in the range of +3.0×10−6 to −10.0×...

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Bibliographische Detailangaben
1. Verfasser:	IWASAKI, NANA
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	The optical glass contains, on a mass % basis, 20.0% to 40.0% of a P2O5 component, 25.0% to 50.0% of a Nb2O5 component, and 3.0% to 30.0% of a total mass (Na2O+K2O), wherein a temperature coefficient (40° C. to 60° C.) of a relative refractive index (589.29 nm) is in the range of +3.0×10−6 to −10.0×10−6 (° C.−1).