Lens with lightguide insert for head wearable display
US9213178B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | May 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0196
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An eyepiece for a head wearable display includes a first lens body having a first interface side in which a first recess is disposed and a second lens body having a second interface side in which a second recess is disposed. The first and second lens bodies are mated together along the first and second interface sides and the first and second recesses are aligned to form a cavity. A lightguide insert is provided that has a shape and a size to fit within the cavity defined by the first and second recesses. The lightguide insert includes an in-coupling region to receive display light into the lightguide insert and an out-coupling region to direct the display light out of the lightguide insert through the first lens body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.