Holographic substrate-guided wave-based see-through display
US10274660B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2009 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | May 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2270/21
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A holographic substrate-guided wave-based see-through display has a microdisplay, capable of emitting light in the form of an image. The microdisplay directs its output to a holographic optical element, capable of accepting the image from the microdisplay, and capable of transmitting the light. The holographic optical element couples its output to an elongate substrate, capable of accepting the light from the holographic optical element at a first location, and transmitting the light along a length of the substrate by internal reflection to a second location, the elongate substrate being capable of transmitting the accepted light from the second location. The substrate couples out what it receives to a transparent holographic optical element, capable of accepting the light transmitted from the substrate and transmitting it to a location outside of the holographic optical element as a viewable image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.