Optical guidance systems and methods using mutually distinct signal-modifying sensors
US11092662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2017 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Jul 18, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/606
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In an embodiment, an optical sensor includes (i) a first lens array including a plurality of first lenses, (ii) a photodetector array including a plurality of photodetectors each aligned with a respective one of the plurality of first lenses, and (iii) a plurality of signal-modifying elements each aligned with a respective one of the plurality of first lenses. The plurality of signal-modifying elements includes (a) a first signal-modifying optical element having a first spatially-dependent transmission function, and (b) a second signal-modifying optical element having a second spatially-dependent transmission function differing from the first spatially-dependent transmission function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.