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Mobile flatness tester

the traditional method:
direct contact between flat and test surface causes scratches;
works only with polished surfaces;
no prints available

mobile flatness tester:
no contact between measuring optics and test surface; 
works with lapped surfaces (grain > 320)
mobile instrument with battery driven laser and RF transmission of camera signal
fringe equivalent 1 micron
aperture: 30 mm

The mobile flatness tester is a shearing interferometer i.e.
an interferometer for optical flatness measurements;
applicable with fine grinded, lapped and polished surfaces made of metal, ceramics, glass,etc. 

Download illustration as PDF
mobile flatness tester
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