Optical sensing device and optical sensing system thereof comprising light emitting device and light receiving device completely sandwiched by the topmost surface and bottommost surface of a carrier body with different vertically separated distances
US11894481B2 · kind B2 · utility
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2References
20Claims
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Key dates
| Filing date | Oct 26, 2021 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Oct 26, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This disclosure discloses an optical sensing device. The device includes a carrier body having a topmost surface; a first light-emitting device disposed on the carrier body and having a light-emitting surface; and a light-receiving device comprising a group III-V semiconductor material disposed on the carrier body and having a light-receiving surface. The light-emitting surface is separated from the topmost surface by first distant H1, the light-receiving surface is separated from the topmost surface by a second distance H2, and H1 is different from H2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.