Image projection device
US10634904B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2016 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Nov 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image projection device includes: a projection unit that irradiates a pupil 40 of an eyeball 36 of a user with an image light beam 34a forming an image to project the image onto a retina 38 of the eyeball; a detection unit that detects a direction 52 in which the pupil has moved relative to a face of the user; and a control unit that controls the projection unit based on a detected direction in which the pupil has moved so that the pupil is irradiated with the image light beam and the image is moved in a direction opposite to the direction in which the pupil has moved with respect to a position on which the image has been projected before a move of the pupil in a coordinate system visually recognized by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.