Optical apparatus equipped with sight line detector
US5579079A · kind A · utility
15Cited by
6References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1995 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Apr 19, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2213/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for detecting information of an eye of a person includes a light illuminating unit for illuminating the eye of the person with light from a plurality of different positions, a photoelectrical changing device for detecting light reflected from the eye, and a controlling device for controlling the light illuminating unit in accordance with whether or not the person is wearing spectacles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.