Month: October 2016

Recent photo of ADC2

The photo show the finished lens, undergoing verification testing of the surface roughness specification

“Philippe Godefroy (CEO of Winlight systems) inspecting the glass blanks for the DESI production spectrograph cameras. All of the blanks in both racks are for the DESI cameras.”

The ten, final DESI Spectrograph Blue channel diffraction gratings have been successfully verified for optical quality. The diffracted wavefront transmitted across the full 14 cm aperture of one grating is shown in these data. The data were taken at the

Corrector barrel in Coordinate Measuring Machine (CMM) room at Fermilab for gravity deflection measurements

The first, fully integrated DESI Spectrograph (known as the Engineering Model) is shown residing on it’s optical bench undergoing performance tuning and testing. The testing is being performed by the DESI Collaboration at Winlight SA, Pertuis, France. A light source

Fiber Photometry Camera Image 4765, showing light from target stars emerging from three fibers while guiding the telescope using the DESI GFA


logo-50x30 Privacy and Security Notice