Optical sensor packages employing cloaking layers
US10475937B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2018 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Mar 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/526
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical sensor package includes a substrate, a wall disposed upon the substrate, and a cover layer disposed on the wall. The substrate, the wall, and the cover layer at least partially define a cavity. The optical sensor package also includes a sensor disposed upon the substrate within the cavity. A cloaking layer is disposed upon to the cover layer. The cloaking layer is transmissive to at least a portion of a light spectrum and is configured to at least partially conceal the sensor. In some examples, the optical sensor package also includes a light source disposed upon the substrate within another cavity at least partially defined by the wall and the cover layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.