Image display device
US10444501B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2018 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jun 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3161
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The image display device further includes a scanning unit that uses light from the light source to scan the movable screen and the fixed screen, and an optical system that uses light from the movable screen and the fixed screen to generate a virtual image, a drive unit that moves the movable screen, a structure body that supports the fixed screen at a fixed position such that the fixed screen is closer to the optical system than the movable screen is, and a magnetic cover that covers a movable part of the drive unit. The structure body covers an area around an opening of the magnetic cover to shield the movable part of the drive unit from stray light travelling backward via the optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.