Variable transmissivity virtual image projection system
US10067344B2 · kind B2 · utility
18Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2016 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Jul 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed herein are apparatus, devices, and methods to provide a modified-transmissivity zone on a projection surface used to generate a virtual image superimposed onto a real-world view. In particular, a variable-transmissivity material may be provided in the projection surface. The transmissivity of variable-transmissivity material may be modified responsive to application of a stimulus. A stimulus source may be configured to selectively apply a stimulus to the variable-transmissivity material to generate a discrete modified-transmissivity zone on the projection surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.