Figure 3
(a) Meridional slope errors along the surfaces S1 and S2 of the Montel mirror as indicated by the red arrows in the upper inset in Fig. 2[link]. Measurements were performed on both right (S2R) and left edges (S2L) of S2. (b) Sagittal slope errors measurements along the directions indicated by the yellow arrows (x' = 0, ±30 mm) in the upper inset in Fig. 2[link] for both S1 (red curves) and S2 (blue curves) surfaces. Data were recorded with a step size of 0.5 mm.  [article HTML]

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