Geometric parameters for the telescope pupil, the intermediate pupil, and the pupil stop masks in the SPHERE visual coronagraph.
|din (mm)||dout (mm)||wspid (mm)||geom.||Tgeom|
Notes. The columns indicate the pupil or stop name, the diameter din and dout of the inner stop and the outer edge, the width wspid and the geometry of the spider arms, and the geometric transmission Tgeom. Roman fonts give design values or values measured for the mechanical components, while italic fonts are values measured from pupil images;
The sparse aperture mask is described in Cheetham et al. (2016) and was not tested by us.
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