Display with rangefinder
US5252950A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Dec 20, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/63
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for displaying images comprising a display capable of displaying rendered imagery. The apparatus comprises a rangefinder coupled to the display which is capable of determining the distance from a viewer to the display. The apparatus further comprises a means for displaying an image upon the display, the image having a perspective such that the display is a projection plane of a perspective volume. A distance from the projection plane to a center of the projection is proportional to the distance from the display to the viewer, and the distance from the center of the projection to the projection plane is dynamically modifiable depending on the distance detected by the rangefinder. The display may be transparent so that a background scene may be visible with the rendered image superimposed upon it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.