Bulk complex polymer lens light diffuser
US6636363B2 · kind B2 · utility
34Cited by
10References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2002 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Mar 30, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0221
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a diffusion film comprising a transparent polymeric film base bearing a plurality of integral contiguous layers, each layer having a pattern of complex lenses on a surface thereof, at least two such contiguous layers comprising material having an index of refraction differing by at least 0.1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.