Method and apparatus for generating input images for holographic waveguide displays
US10241330B2 · kind B2 · utility
72Cited by
819References
20Claims
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Key dates
| Filing date | Jun 29, 2015 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Oct 6, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0174
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image generation device having: a spatial light modulator; a source of light; a beam deflector; an illumination waveguide and an image transport waveguide, each waveguide containing at least one switchable grating; and a coupler for directing scanned light into a first set of TIR paths in said illumination waveguide. A switchable grating in the illumination waveguide diffracts light onto the SLM, a switchable grating in the image transport waveguide diffracting image-modulated from the SLM into a waveguide path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.