Translucent glass brick made of opal glass with light diffusible

Details Translucent glass brick made of opal glass with light diffusible Translucent glass brick made of opal glass with light diffusible

1988-06-14

1989-12-19

Chilcot, Jr., Richard E.

Static structures (e.g., buildings)

Visible translucent block or embedded component

52311, 428426, 428428, E04B 546, E04C 142, B22B 1706

Patent

active

048874043

ABSTRACT:
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 SiO.sub.2 60.0-70.0%, Al.sub.2 O.sub.3 7.0-11.0%, B.sub.2 O.sub.3 1.0-5.0%, BaO 0-3.0%, ZnO 1.0-5.0%, Na.sub.2 O 15.0-21.0%, SO.sub.3 0.3-1.0%, and F.sub.2 0-2.0%.

REFERENCES:
patent: 2768556 (1956-10-01), Boyd
patent: 4038448 (1977-07-01), Boyd et al.
patent: 4062996 (1977-12-01), Keafer, Jr. et al.
patent: 4318946 (1982-03-01), Pavone
patent: 4726981 (1988-02-01), Pierson et al.

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