Compact iris imaging system
US9138140B2 · kind B2 · utility
1Cited by
1References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2012 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Sep 19, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An iris imaging and illumination system is used to resolve and record the fine musculature features of an iris. The system can improve the quality of an iris image and facilitate the image capturing process by focusing illumination on an ocular area of a subject. By limiting illumination of other parts of a face, reflections from the face are reduced. The system has a compact physical arrangement by placing the illumination sources proximate to one another and splaying them in order to focus illumination on the ocular areas of a subject.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.