Transparent functional membrane containing functional ultrafine particles, transparent functional film, and process for producing the same
US6335832B1 · kind B1 · utility
9Cited by
18References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1999 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Aug 10, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An antireflection film containing a transparent substrate film, a hard coat layer on the substrate film, and first and second refractive index layers on the hard coat layer. The hard coat layer has a refractive index higher than the refractive index of the transparent substrate film; the first refractive index layer has a refractive index higher than the refractive index of the hard coat layer; the second refractive index layer has a refractive index lower than the refractive index of the hard coat layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.