This paper addresses two aspects of the metrology of spherical, petal polymer reflectors
which are part of an effort by the European Space Agency (ESA) to develop actively …

In this study, a new global earth system model is introduced for evaluating the optical
performance of space instruments. Simultaneous imaging and spectroscopic results are …

This paper studies the point spread function (PSF) and centroids computation methods to
improve the performance of reverse Hartmann test (RHT) in poor conditions, such as …

We investigated the definition for circular off-axis aspheric mirrors (COAMs). The clear
opening of the COAM obtained by projecting a circular aperture on the aspheric surface …

The point spread function (PSF) is investigated in order to study the centroids algorithm in a
reverse Hartmann test (RHT) system. Instead of the diffractive Airy disk in previous …