Display device of focal angle and focal distance in iris recognition system
US7271839B2 · kind B2 · utility
21Cited by
12References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2002 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Nov 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/18
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention relates to a display device of a focal angle and distance in an iris recognition system, in which the device includes: a distance measurer for measuring a distance between a user and an iris recognition camera, and an indicator for quantitatively indicating a forward-backward distance and a right and left or up and down direction the user should move, in accordance with the distance measured by the distance measurer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.