Optical device
US10114226B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2017 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Mar 10, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/1842
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical device includes a light guiding plate which guides lights within the surface parallel to an emission surface, and light converging sections onto which the lights guided by the light guiding plate are incident, each of the light converging sections having an optical surface which allows an emitted light to be emitted from the emission surface in a direction where the emitted light is to be substantially converged on one convergence point or convergence line in space or to be substantially diverged from one convergence point or convergence line in space. The light converging sections are formed respectively along a predetermined line within the surface parallel to the emission surface, and the convergence points or the convergence lines are different from each other among the light converging sections, and an image is formed in space by an aggregation of the convergence points or the convergence lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.