SPECTRUM IMAGING DEVICE, SPECTRUM IMAGING METHOD, AND LINE LIGHT SCANNING MECHANISM

PROBLEM TO BE SOLVED: To provide a spectrum imaging device and a spectrum imaging method capable of rapid spectrum imaging of any imaging object by eliminating redundancy in imaging time resulting from slit scanning, and to provide a line light scanning mechanism used for the spectrum imaging deice and the spectrum imaging method.SOLUTION: The spectrum imaging device includes, as a mechanism successively transforming observation light L observed from the imaging object into linear light and scanning the linear light, a line light scanning mechanism 120 on which light selection members 121a-121n having the shape corresponding to the linear light to be transformed and independently rotatable around an axis provided in the longitudinal direction are arrayed in the number corresponding to the resolution for scanning the observation light L. Based on the selective rotation of the light selection members 121a-121n constituting the line light scanning mechanism 120, the observation light L is successively transformed into linear light and scanned, and taken in a spectrograph 130.