Programmable light curtains
US11493634B2 · kind B2 · utility
0Cited by
17References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments described herein are generally directed to a device that monitors for the presence of objects passing through or impinging on a virtual shell near the device, referred to herein as a “light curtain”, which is created by rapidly rotating a line sensor and a line laser in synchrony. The boundaries of the light curtain are defined by a sweeping line defined by the intersection of the sensing and illumination planes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.