Levelness detecting device and method, levelness adjusting device and method
US9733078B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | Sep 10, 2015 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Oct 11, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C2009/066
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure discloses a levelness detecting device and method, and a levelness adjusting device and method. The levelness detecting device comprises a light emitter, a semi-reflecting, semi-transmitting mirror, and a plurality of reflecting mirrors comprising a first reflecting mirror, a second reflecting mirror and a third reflecting mirror. The semi-reflecting, semi-transmitting mirror and the plurality of reflecting mirrors are arranged on a to-be-detected plane and are each provided with a scale indicative of a height.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.