Optical reflective edge or contrast sensor
US11112356B2 · kind B2 · utility
3Cited by
3References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Jul 26, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/9503
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A precision edge detection system and sensor assembly is provided that uses a reflection technique to provide an energy efficient device that can be achieved using a relatively small form factor. There is provided an optical reflective sensor assembly that includes a light source, an optical element positioned to collimate and focus light from the light source to generate a focused beam, and at least one photodetector positioned adjacent the light source. The at least one photodetector is configured to detect light from the focused beam that has been reflected by an object positioned opposite the light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.