Patent ID: 7632767

Claim:
An infrared absorbent green glass composition, comprising: the following components, expressed in mass %: 65<SiO 2 ≦75; 0≦B 2 O 3 ≦5; 0≦Al 2 O 3 ≦5; 0<MgO≦1.5 10<CaO≦15; 0≦SrO≦10; 0≦BaO≦10; 0≦Li 2 O≦5; 10≦Na 2 O≦15; 0≦K 2 O≦5; 0≦TiO 2 ≦0.5; wherein 10<MgO+CaO+SrO+BaO≦20 and 10≦Na 2 O+K 2 O≦17.5, 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 2 O 3 ≦1.0, where T—Fe 2 O 3 is total iron oxide expressed as Fe 2 O 3 , wherein a mass ratio of FeO expressed as Fe 2 O 3 to T—Fe 2 O 3 (FeO/T—Fe 2 O 3 ) is 20 to 44%; and 0≦CeO 2 <2.0, 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.