Structured retroreflector
US11125922B2 · kind B2 · utility
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1References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 31, 2019 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jan 24, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0221
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure provides a structured retroreflector. The structured retroreflector includes a transparent substrate, a plurality of transflective structure layers disposed on one side of the transparent substrate and mutually laminated and parallel, wherein distances between any two adjacent transflective structure layers are equal and 0.1λ to 10λ, λ being a wavelength of incident light, and a transparent filling layer disposed between any two adjacent transflective structure layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.