Holographic pattern generation for head-mounted display (HMD) eye tracking using a lens array
US10948873B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2018 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Apr 10, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2223/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system for making a holographic medium includes a light source configured to provide light and a beam splitter configured to separate the light into a first portion of the light and a second portion of the light that is spatially separated from the first portion of the light. The system also includes a first set of optical elements configured to transmit the first portion of the light for providing a first wide-field beam onto an optically recordable medium, a second set of optical elements configured to transmit the second portion of the light through for providing a second wide-field beam, and a plurality of lenses optically coupled with the second set of optical elements configured to receive the second wide-field beam and project a plurality of separate light patterns onto the optically recordable medium for forming the holographic medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.