Variable viewing angle optical systems
US10008164B2 · kind B2 · utility
6Cited by
24References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2015 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Jun 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/068
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical systems are described that include a switchable diffuser, a display panel, a lighting component and a diffuser controller. The diffuser controller is configured to switch the state of the switchable diffuser when the diffuser controller determines that the diffuser state is to be changed. The diffuser controller may be configured to vary an output level of the display panel in association with a change in state of the switchable diffuser. The optical system may also include a switching device which may be separable from the display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.