Waveguide and augmented reality device employing the same
US12372708B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Oct 7, 2022 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Jun 10, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A waveguide and an augmented reality (AR) device employing the waveguide are disclosed. The waveguide includes a waveguide body, an input-coupling element inputting a light into the waveguide body, a reflective element disposed at one side of the waveguide body and again inputting a light that is not input into the waveguide body or is transmitted through the waveguide body into the waveguide body, and an output-coupling element outputting a light propagating inside the waveguide body to an outside.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.