Proximity sensor including a photon emitter, a photon receiver and an opaque structure
US9612330B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 14, 2014 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | May 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One or more embodiments are directed to a device comprising: a body having a cavity, an opaque structure, and an aperture in the body that places the cavity in fluid communication with an environment external to the body. A photon emitter is located in the cavity below the aperture and configured to emit photons through the aperture to the environment external to the body. A photon receiver is located in the cavity below the opaque structure of the body and configured to receive photons that are each reflected from both an object that is spaced apart from the body in the environment external to the body and from a surface of the opaque structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.