Apparatus and method for 3-D measurement using holographic scanning
US4758093A · kind A · utility
40Cited by
1References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 11, 1986 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | Jul 11, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/106
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A 3-D measurement system utilizing a holographic scanner is provided with beam direction compensation means for compensating for changes in angular deflection of the scanner and further means is provided for synchronizing the scanner diffraction segments with the camera imaging mechanism of the 3-D system as well as for providing multiple offsets of the projected beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.