Floating image display unit
US10574977B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2015 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | May 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/39
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A floating image display unit according to an embodiment of the technology includes an optical plate and one or a plurality of reflectors. The optical plate includes a plurality of optical elements arranged in a matrix on a substrate having a normal in a Z-axis direction, and each of the optical elements is configured to regularly reflect an entering light beam of a Z-axis direction component and recursively reflect an entering light beam of an XY-axis direction component. The one or the plurality of reflectors are configured to reflect light outputted from a light emitter or a light irradiation target object disposed on rear surface side of the optical plate, thereby causing the light to obliquely enter a rear surface of the optical plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.