Visual line detecting device
US5416317A · kind A · utility
6Cited by
5References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1994 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Jan 31, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2213/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A visual line detecting device having an eyeball lighting unit that irradiates the eyeball of a viewer with a luminous flux, and a visual line detecting unit that detects the visual line of a viewer from the reflected image on the cornea surface of the eyeball, wherein the eyeball lighting unit is designed so that the reflected image on the cornea surface attains a specified shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.