Optical sensor systems
US11354880B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2018 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Jan 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/614
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems, assemblies, and methods for detecting changes in polarization states are described. Example systems may include a light receiving unit including a sensor and a receiving polarizer. The sensor is configured to sense light from a polarized light source deflected through the receiving polarizer by a light directing article. The sensor is configured to generate a signal indicative a received polarization state of light deflected by the light directing articles. Such systems may be coupled to vehicles and may be useful for sensor-detectable signs, indicia, and markings to facilitate automated or assisted vehicular transport.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.