초록 ▼

A translucent glass brick for use in a building wall as a lighting wall is made of a translucent opal glass in a form of a hollow glass block. The opal glass has an opal appearance and a mean light transmittance of 20-80%, in a glass thickness of 10 mm, for wavelength over a range of 400-700 nm. The

A translucent glass brick for use in a building wall as a lighting wall is made of a translucent opal glass in a form of a hollow glass block. The opal glass has an opal appearance and a mean light transmittance of 20-80%, in a glass thickness of 10 mm, for wavelength over a range of 400-700 nm. The opal glass is a lime and chlorine free glass with sodium sulfate and sodium sulfide fine particles dispersed therein for diffusing light transmitting through the glass. The opal glass essentially consists, by weight, of SiO2 60.0-70.0%, Al2O3 7.0-11.0%, B2O3 1.0-5.0%, BaO 0-3.0%, ZnO 1.0-5.0%, Na2O 15.0-21.0%, SO3 0.3-1.0%, and F2 0-2.0%.

대표청구항 ▼

A translucent glass brick for use in a building wall, said translucent glass brick being a hollow body of glass, the improvement wherein said glass is an opal glass which comprises light transparent glass matrix and fine particles dispersed in said matrix for diffusing light transmitting through sai

A translucent glass brick for use in a building wall, said translucent glass brick being a hollow body of glass, the improvement wherein said glass is an opal glass which comprises light transparent glass matrix and fine particles dispersed in said matrix for diffusing light transmitting through said glass, said glass having an opal appearance and a mean light transmittance of 20-80%, in a glass thickness of 10 mm, for wavelength over a range of 400-700 nm.