Micro-illuminator for use with image recognition system
US6540392B1 · kind B1 · utility
37Cited by
12References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A micro-illuminator suitable for illuminating the iris of the eye of a subject wearing eyeglasses for the purpose of imaging of the iris for identification of the individual comprises an LED having a micro-lens having an opaque portion sized to block light reflected from the substrate of an LED and a lens for focusing light directly emitted by the dies of the LED. The elimination of the reflected light and the focusing of the directly emitted light minimizes the size of specularities reflected from the surfaces of the subject's eyeglasses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.