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Interferometer plane
Both sides of our fused silica interferometer plane are polished to Λ/ 10 flatness with a 10-5 scratch-pitting surface quality. A slight wedge of 30±5 arcs suppresses the internal striation. The optical element has an interferogram which can be used as a calibration reference surface.
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Technical Data
UV fused silica with excellent thermal stability
Surface flatness is λ/10,10-5 scratch-pitting
Individual testing using included interferograms
Slight wedge almost eliminates internal streaks



Interferometer plane
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