Space instrumentation - GAIA Mirrors
GAIA is the successor of HIPPARCOS and will aim at creating a precise three-dimensional map of about one billion stars throughout our galaxy and beyond. It is built by EADS ASTRIUM for ESA.
The GAIA telescope is a folded three mirror anastigmat. Two telescopes are integrated in the instrument.
The contract for grinding, polishing and figuring the M2, M4 and M5 mirrors of both telescopes was awarded to AMOS.
M4 and M5 are flat folding mirrors; M2 is a convex aspherical mirror.
The mirrors are made from Silicon Carbide.
ON FOCUS - Diamond TurningAdvanced Mechanical and Optical Systems (AMOS) manufactures small optical pieces by diamond turning mainly for infrared applications but also, after post polishing, for visible or ultraviolet. Concave or convex mirrors up to 500mm can be machined with extreme asphericities....