Anti-reflection optical article and process of producing the same
US4904525A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1987 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Oct 29, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31946
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An anti-reflection optical article which has an excellent anti-reflection properties, scratch resistance, impact resistance, flexibility, anti-static properties and weatherability, and which is easy to dye, is disclosed. The anti-reflection optical article of the present invention includes a transparent plastic substrate; a hard coat film formed on a surface of the substrate, the film having an index of refraction of not less than 1.52; and a fluorine-containing organopolysiloxane-based film with a thickness of 10 nm to 500 nm, which has an index of refraction lower than that of the hard coat film by not less than 0.02, and which is formed on the hard coat film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.