Patent ID: 7632767
Filing Date: 2009-12-15
Classification: C03C

Abstract:
1. An infrared absorbent green glass composition, comprising: the following components, expressed in mass %: 65<SiO 0≦B 0≦Al 0<MgO≦1.5 10<CaO≦15; 0≦SrO≦10; 0≦BaO≦10; 0≦Li 10≦Na 0≦K 0≦TiO wherein 10<MgO+CaO+SrO+BaO≦20 and 10≦Na and a mass ratio of CaO to MgO (CaO/MgO) is at least 7.5; the following component, expressed in mass ppm: MnO 0 to 300 ppm; the following components as colorants, expressed in mass %: 0.4≦T—Fe where T—Fe wherein a mass ratio of FeO expressed as Fe 0≦CeO wherein a wavelength at which a minimum transmittance is obtained in a range of 550 to 1700 nm is at least 1065 nm, and a transmittance that is obtained at a wavelength of 1650 nm is not higher than a transmittance that is obtained at a wavelength of 730 nm.