Their objective is to miniaturize opticalsystems... Among the applications of these miniature opticalsystems, we can mention spectral filtering systems intended to let through certain wavelengths and block others
The infrared on-chip camera, developed at ONERA within the framework of a thesis by Florence de la Barrière, is a technology breakthrough compared to existing infrared systems: the entire opticalsystem is integrated to the cryogenic infrared detector itself. The camera, which is extremely compact (total length 4 mm), equipped with a large field of view (equal to 120 °), is suitable for possible industrial manufacturing at the scale of the wafer
To measure the 3 components of velocity by this method the same laser sheet has to be observed by 3 opticalsystems, from different directions, to vary the vector R, or three coplanar laser sheets have to be successively generated (to vary the vector E) and observed by a single opticalsystem. The setup of the DGV system in the F2 wind tunnel of the Onera center at Le Fauga Mauzac during an Onera / DLR measurement campaign
They are therefore an attractive and complementary alternative to opticalsystems. Radar contour imaging could be applied, for example, to the surveillance and management of the growth of the urban fabric