Personal video viewing apparatus
US5034809A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1989 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Jul 7, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video display apparatus has a pair of displaying devices for displaying, by using television signals, images to be respectively viewed with left and right eyes; a pair of magnifying lenses for the left and right eyes; and a frame for supporting the displays and the magnifying lenses so that left and right virtual images formed by the magnifying lens, when images on the screens of the displays are viewed with the left and right eyes, coincide with each other. This video display apparatus enables stereoscopic vision by displaying video images on the displays on the basis of the principle of binocular parallax. half mirrors may be disposed between the magnifying lens and the eyes to enable images on the displays or the outside scenery to be selectively viewed. A shutter may also be provided between the half mirrors and the outside scenery to facilitate viewing of the displayed image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.