Apparatus and method for detecting the position and orientation of a reference beam of light
US4786178A · kind A · utility
4Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1986 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Dec 15, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C7/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for detecting the relative position and orientation of a reference beam of light includes first and second detectors for detecting the intersection of the reference beam with first and second spaced and substantially parallel reference planes. The measured horizontal and vertical deviations between the points of intersection on the two reference planes provide an indication of the orientation of the beam with respect to the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.