Ambient light management for virtual reality glasses
US9733478B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 2015 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | May 7, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A virtual reality glasses assembly is provided. The assembly includes virtual reality glasses having lenses. The assembly further includes light attenuating filters at least one of applied to and incorporated into the lenses that automatically maintain or increase a contrast of a projected virtual reality image and prevent ultraviolet light overexposure by adjusting an amount of light passing through the lenses. Each of the light attenuating filters has one or more respective photochromic filters and one or more respective ultraviolet filters. The assembly also includes light attenuating shutters at least one of applied to and incorporated into the lenses that automatically or manually further maintain or increase the contrast of the projected virtual reality image by further adjusting the amount of light passing through the lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.