Fizeau interferometry with no back reflections on parts as thin as 0.075mm, low noise Spectral-Synchronized data acquisition, easy laser alignment mode, and measurements out to 2,000mm. SpectrÄ enables you to adjust coherence length, position, and phase, within milliseconds. Uniquely measure: single, to tens of stacked substrates, picometer surface features, lenses, and domes... the applications are growing every day. There has never been interferometry like this.

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