Optical fingerprint imaging using holography
US10042324B2 · kind B2 · utility
1Cited by
19References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Jun 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2222/34
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Various systems for imaging are provided. An electronic device includes a biometric sensor and a processing system. The biometric sensor includes an illuminator, a mirror, a biometric sensor array and a beam splitter. The beam splitter splits a beam received from the illuminator into a first beam incident on a biometric sensing area and a second beam incident on the mirror. The beam splitter combines the reflected beams from the biometric sensing area and the mirror. Thereafter, the processing system receives data from the sensor array and reconstructs the biometric image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.