Structured films and use thereof for daylight illumination
US5551042A · kind A · utility
22Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1993 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Apr 26, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D2013/034
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A daylighting system usable in either a skylight or a dormer includes a film having a plurality of negative Fresnel lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.