Office National D'etudes Et De Recherches Aerospatiales

Onera (office National D'etudes Et De Recherches Aerospatiales)

Onera

Cindy Bellanger

Patrick Bouchon

Jerome Primot

Riad Haïdar

Laurent Lombard

Julien Jaeck

Jérôme Primot

Micke Boher

Sabine Suffis

Maxime Deprez

Sophie Thetas

Alain Kattnig

A device for imaging and delivering spectroscopic information comprises an objective (), an image sensor () and an optical component () having a spectral differentiation function. The optical component having a spectral differentiation function modifies the image of a point in different ways for at least two colours, so that a form of the image of the point delivers spectroscopic information that appears directly in the image as captured by the image sensor. Such device may be used in a detection and/or surveillance system, which then possesses a lower probability of false alarm value.

Device for imaging and delivering spectroscopic information

A wavefront analyzer is modified to simply determine the differences in amplitude and tilt which can exist between the different regions of an initial wavefront (S). To achieve this, interference between two waves only is produced from beams (F, F) which come from neighboring regions on the initial wavefront. Such an analyzer can be used to coherently combine laser radiation produced by different sources arranged in parallel. Another use is for the determination of the differences in height and inclination which exist between the neighboring mirror segments of a Keck telescope.

Wavefront sensor and method for determining differences in piston and tilt existing between several light beams

Growing community of inventors

Massy, France

Cindy Bellanger