Optical functional materials and process for producing the same
US6340404B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2000 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Mar 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A antiglare layer 12 having a fine uneven surface is formed directly or through other layer(s) on a transparent substrate film 11, and a layer 13 having a low refractive index, which is lower than the refractive index of the antiglare layer 12, is formed thereon. The refractive index of the antiglare layer 12 is higher than the refractive index of a layer in contact with said antiglare layer 12 on its surface remote from the layer 13 having a low refractive index. An SiOx film may be used as the layer 13 having a low refractive index. The SiOx film per se has excellent gas barrier property and antifouling property as an optical functional membrane and is an optical functional material characterized by having excellent moistureproofness, scratch resistance, adhesion to a substrate, transparency, low refractive index, dye deterioration preventive property, and other properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.