Patent ID: 7126686

Claim:
A spectral image measurement apparatus comprising: a spectral element array which includes: a substrate; and a plurality of micro-electrically-driven mechanical spectral elements arranged two-dimensionally on the substrate, wherein each of the spectral elements comprises a diffraction grating having a diffraction surface, the diffraction grating being pivotably supported on the substrate; wherein each of the spectral elements generates spectra from a light entering the diffraction surface by applying an electric field to the diffraction grating to tilt the diffraction grating with respect to the substrate; and wherein each of tilt angles of the diffraction gratings with respect to the substrate is capable of being set individually; a spectral element drive section for driving the spectral elements; an inlet-side optical system for guiding, to the spectral element array, a light emitted from an object to be detected; a detection-side optical system for forming an image with a diffracted light output from the spectral element array; and an array sensor for detecting the diffracted light through the detection-side optical system.