Optical finger navigation device with a folded air lens

Optical finger navigation device with a folded air lens

A fingerprint navigation system with a folded air lens structure and a folded air lens. The system includes a light source, a folded air lens structure, a light reflector, and a navigation sensor. The folded air lens structure is aligned to direct light from the light source to an object surface. Th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: SMITH GEORGE EDWARD
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:A fingerprint navigation system with a folded air lens structure and a folded air lens. The system includes a light source, a folded air lens structure, a light reflector, and a navigation sensor. The folded air lens structure is aligned to direct light from the light source to an object surface. The folded air lens structure includes a first portion and a second portion. The light reflector is aligned to direct the light from the first portion of the folded air lens structure to the second portion of the folded air lens structure. The navigation sensor is calibrated to produce a navigation image corresponding to the light directed through the folded air lens structure and the folded air lens.