Light wave-guide optical element and method for forming the same
US11256023B2 · kind B2 · utility
0Cited by
9References
7Claims
0Family size
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Key dates
| Filing date | Oct 29, 2017 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Apr 11, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0125
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A light wave-guide optical element for use in a head-mounted display (HMD) or in a head-up display (HUD) includes an organic optical material, an anti-reflection stack and an organic optical cover. The organic optical material includes multiple bulging tips surrounded by a periphery plane. The anti-reflection stack conformally covers the bulging tips and the periphery plane. The organic optical cover correspondingly covers the anti-reflection stack, the periphery plane and the bulging tips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.