  AMBER is the General User near-infrared focal instrument of the Very Large
Telescope interferometer. Its specifications are based on three key programs on
Young Stellar Objects, Active Galactic Nuclei central regions, masses and
spectra of hot Extra Solar Planets. It has an imaging capacity because it
combines up to three beams and very high accuracy measurement are expected from
the spatial filtering of beams by single mode fibers and the comparison of
measurements made simultaneously in different spectral channels.
