Directly viewable stereoscopic projection system
US3959580A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Nov 21, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B30/27
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Stereoscopic inputs given by a display, where the stereo images are centered on respective intersecting optical axes, which images both stereo inputs on a field lens at the intersecting which forms, in turn, exit pupils at a predetermined focal distance from the field lens on the respective optical axes. The input lenses are spaced such that the distance between the formed pupils is equal to the interpupillary distance of the viewer. The viewer merely positions himself such that his right eye is coincident with the one exit pupil and the left eye becomes coincident with the other exit pupil. Selection of the proper optics for any given stereo application first requires consideration of the parameters involved and their influence on the application at hand. Some of the display parameters are necessarily linked to sensor parameters and vice versa. Also, certain visual system parameters are dictated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.