Compound collimating system using apertures and collimators
US10229316B2 · kind B2 · utility
5Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2016 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Dec 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical sensor system having a compound aperture and collimator structure for collimating light includes: an input surface providing a sensing region for a biometric object; an aperture layer, disposed beneath the input surface; a plurality of light-blocking structures, disposed beneath the aperture layer, forming a plurality of collimators; and an image sensor, disposed beneath the plurality of light-blocking structures, wherein the image sensor is configured to detect light from the sensing region that has passed through the aperture layer and the plurality of collimators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.