Optical finger print input device
An optical fingerprint input device by where a mark identification is attached to one surface of a prism and reflected by light beams coming from an external light source to be incident on a lens such that erroneous recognition caused by a fingerprint afterimage of water, sweat or oil remaining on t...
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | An optical fingerprint input device by where a mark identification is attached to one surface of a prism and reflected by light beams coming from an external light source to be incident on a lens such that erroneous recognition caused by a fingerprint afterimage of water, sweat or oil remaining on the fingerprint contact surface of the prism can be prevented to improve the security of the device, and a visual advertisement can be additionally obtained when a mark identification logo for advertisement is attached on one surface of the prism. |
|---|