Fingerprint input module
US8204283B2 · kind B2 · utility
19Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2009 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Mar 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1324
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fingerprint input module includes at least one prism sheet, an image-capturing unit, and a planar light source. The prism sheet has a micro-prism array. The image-capturing unit has a lens. The planar light source is disposed between the prism sheet and the image-capturing unit, and has a through hole in optical alignment with the lens for passage of light from the micro-prism array to the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.