Eye tracking system having an array of photodetectors aligned respectively with an array of pixels
US5331149A · kind A · utility
184Cited by
13References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1992 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Dec 4, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An eye tracking system is disclosed which is comprised of an eye tracking module formed of a display joined to a photodetector array. Each pixel in the display is aligned with a corresponding photodetector. An image generated by the display is projected onto a viewing screen or toward a viewer. Axial light rays from the display pixels are reflected by the eye and detected by a respective photodetector which generates an electrical signal indicative of eye position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.