Laminate, antireflection product having three-dimensional curved surface, and method of manufacturing antireflection product
US11567238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2019 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Mar 27, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24372
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laminate includes a substrate; and a layer (a) containing particles forming a specific uneven shape, the number of particles present on the surface of the layer (a) is 6.3 to 20 per 1 μm2, and a heat shrinkage rate of the laminate in a case of being heated for one hour at a glass transition temperature of the substrate+10° C. is 20% or more and less than 70%. An antireflection product has a three-dimensional curved surface having a curvature radius of 1 to 1,000 mm, and has a specific uneven shape formed of particles on the three-dimensional curved surface, the number of metal oxide particles present on the three-dimensional curved surface is 9 to 40 per 1 μm2, and a difference between a maximum value and a minimum value of reflectivities is less than 1.2%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.