Transparent functional membrane containing functional ultrafine particles, transparent functional film, and process for producing the same
US6476969B2 · kind B2 · utility
11Cited by
19References
7Claims
0Family size
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Key dates
| Filing date | Sep 12, 2001 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Sep 12, 2021 |
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.