Microvoided light diffuser
US7327415B2 · kind B2 · utility
29Cited by
12References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2001 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | May 18, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133504
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a light diffuser comprising a thermoplastic layer containing thermoplastic polymeric material and microvoids having a substantially circular cross-section in a plane perpendicular to the direction of light travel and having a diffuse light transmission efficiency of at least 65%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.