Collimated viewing device with off-axis spherical mirror for simulator
US5253116A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Nov 21, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B9/326
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An apparatus for a visual display in a training simulator. A projector illuminates a convex side of a spherical screen. A concave face of a spherical mirror facing the convex side of the spherical screen reflects the image on the spherical screen to a viewer. A second embodiment projects an image on a first mirror. The projected image is reflected onto a convex portion of a spherical screen. The image on the convex portion of the spherical screen is reflected to a concave mirror facing the convex face of the screen. A viewer sees the projected image on the concave mirror. The first mirror and the second mirror can be formed as one mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.