Proximity sensor with light blocking barrier comprising a gap having a cross-section with parallel walls between emitter and detector
US11520074B2 · kind B2 · utility
1Cited by
3References
8Claims
0Family size
Inventors
Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Feb 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/12
- 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 a light blocking barrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.