Optoelectronic sensor and method for detecting objects in a monitored zone
US10921183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Jul 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optoelectronic sensor is provided for detecting objects in a monitored zone that has a light receiver having a reception optics arranged in front of it for generating a received signal from received light that is incident on the sensor in a direction of incidence of light from the monitored zone, wherein the reception optics comprises a flat light guide plate having a first main surface and a lateral edge bounding the first main surface at a side; and wherein the first main surface of the light guide plate is arranged transversely to the direction of incidence of light and deflects the incident received light to the lateral edge. The light guide plate here has a diffractive structure for deflection to the lateral edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.