Method and apparatus for detecting the presence and location of objects in a field via scanned optical beams
US5565686A · kind A · utility
8Cited by
59References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1995 |
| Grant date | Oct 15, 1996 |
| Priority date | — |
| Expiry date | Mar 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical system and method for detecting the presence and location of multiple objects in a field. The optical system has at least one light source to generate a beam, which beam is scanned by at least one first reflecting surface to generate at least three sets of beams. A first and second set of beams are overlapped across the field by at least one second reflecting surface and a third set overlaps the field without the second reflecting surface. The beam intensity is measured by at least one detection means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.