Patent ID: 7027152

Claim:
A spectrometer, comprising a dispersive element for spectrally decomposing a light beam, whose spectral distribution is to be determined, into spectral components; a suspension for supporting the dispersive element and for biasing the same into a resting position with a biasing force, when the dispersive element is in a deflected position; a means for holding the dispersive element at the deflectable position, wherein the means for holding is formed to apply a holding force to the dispersive element, so that the deflected position of the dispersive element is a position where an equilibrium of powers between the holding force and the biasing force is established; and a detector, wherein the detector has a first detector element and a second detector element, the spectrometer further comprising: a control unit, which is coupled to the means for holding the dispersive element, for controlling the detector such that the first detector element detects a first spectral component when the dispersive element is in a first position, and a second spectral component when the dispersive element is in a second position, and that the second detector element detects a third spectral component when the dispersive element is in the first position, and a fourth spectral component when the dispersive element is in the second position, wherein the first and third detected spectral components form a first shot and the second and fourth detected spectral components forms a second shot; and a means for combining the first and second shots to determine the spectral of the light beam.