Neutral bronze glazings
US4190452A · kind A · utility
25Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1978 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Feb 14, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/226
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A neutral bronze sheet glass has a dominant wavelength in the vicinity of 575 nm, and a monochromatic transmittance which in the range from about 400 nm to about 550 nm is on the average from about 5% to about 50% lower than in the range from about 550 nm to about 750 nm, and possesses in thicknesses suitable for glazing a luminous transmittance above 70%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.