Optical fingerprint sensor
US9864893B2 · kind B2 · utility
9Cited by
0References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2014 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Oct 31, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1318
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an optical fingerprint sensor which can comprise: a backlight unit for irradiating light; an uneven surface layer onto which the light from the backlight unit is irradiated; and a photosensor unit arranged between the backlight unit and the uneven surface layer so as to detect the light irradiated from the backlight unit and reflected from a user's fingerprint coming into contact with the uneven surface layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.