Optical film having a surface with rounded structures
US7416309B2 · kind B2 · utility
17Cited by
30References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2004 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | Jun 26, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0056
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure is directed to optical devices including a light source and an optical film having a first surface disposed to receive light from the light source and a second surface facing away from the light source. The second surface includes a two-dimensional array of closely packed substantially hemispherically-shaped structures. In some implementations of the present disclosure, the optical film further includes a substrate portion having an optical characteristic different from optical characteristics of the second surface comprising the two dimensional array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.