Translucent structure
US11267750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2019 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Feb 19, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24355
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a translucent structure having a surface unevenness shape which has: an area ratio of surface flat regions in which an angle formed with a flat surface is in a range of 0° to 0.5° of in a range of 0% to 5.8%; a projection density of in a range of 0.0001/μm2 to 0.05/μm2; a projection area ratio of in a range of 5.5% to 50%; a skewness Ssk which represents the degree of non-symmetry of in a range of −0.5 to 1.1; a load area factor Smr1 at a boundary between a projected mountain portion and a core portion of in a range of 0% to 14.5%; and an arithmetic average surface roughness Sa of in a range of 0.06 μm to 0.143 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.