Micro-optic device with double sided optical effect
US10987967B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Aug 19, 2020 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Aug 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B30/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A micro-optic device, including: a transparent substrate; first lens elements on a first side of the substrate that reveal first image elements on a second side of the substrate; and second lens elements on the second side of the substrate that reveal second image elements on the first side of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.