Optical glass, optical element and optical instrument

• Main Author: KUANG BO
• Format: Patent
• Language: Chinese; English
• Published: 25.10.2022
• Subjects: 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

The invention provides optical glass, which comprises the following components in percentage by weight: 1 to 12 percent of SiO2; 3 to 18 percent of B2O3; the content of La2O3 is 45 to 65 percent; 1 to 13 percent of Y2O3; 1 to 13 percent of ZrO2; 3 to 18 percent of Nb2O5; 5-20% of TiO2, wherein the r...