Retro-reflective marker with uniformly distributed microelements
US12271009B2 · kind B2 · utility
0Cited by
14References
30Claims
0Family size
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Key dates
| Filing date | May 24, 2024 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | May 24, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/124
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus including a retro-reflective section. The retro-reflective section includes an outer surface, an inner surface, and a plurality of retro-reflective microelement. One or more of the plurality of retro-reflective microelements include a plurality of reflective surfaces. Each of the plurality of retro-reflective microelements extends from the inner surface at a location different from locations of the other retro-reflective microelements, and each of the plurality of retro-reflective microelements comprises a central axis extending along a direction that corresponds to a surface normal of the outer surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.