Blue camera delivered and tested. Tests at AIP optical lab: "diffraction limit" reached.
We have adopted an all-refractive camera made with 11 'lenses in 6 groups. Its optical design has been optimized taking into account all the spectrograph design. Its last surface is a aspheric surface to compensate field curvature due to the tilt of the pupil introduced by the echelle in one direction, and to the other one introduced by the grisms in a perpendicular direction. The last lenses acts as dewar window. Optical layout is shown.