Proximity sensor with infrared ink coating
US11143551B2 · kind B2 · utility
1Cited by
2References
6Claims
0Family size
Inventors
Key dates
| Filing date | May 17, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | May 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J1/0209
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor comprising a light emitter and light detector directly covered and encapsulated by a layer of light transmissive compound. A gap in the light transmissive compound between the light emitter and the light detector filled with an infrared ink. In some embodiments, an infrared ink can cover at least a portion of a top surface of the sensor and define apertures above the light detector and/or light emitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.