| 摘要 |
PROBLEM TO BE SOLVED: To provide a spectrometer that enables the most efficient measurement for acquiring a spectrum of a desired signal-to-noise ratio by using the number of optical detectors more than two pieces and not more than the number of channels in a spectrometer using a Hadamard transform, and to provide a method for acquiring the spectrum therein.SOLUTION: On behalf of a conventional digital rotation mirror (with an angle only in two directions), an analog rotation mirror (with a stepless angle) array 805 is used, and the number of optical detectors 808a to 808h more than conventional two pieces and not more than the number of channels is used, and a wavelength area is divided to detect light. Thereby, a measurement can be efficiently made by the optimum number of measurements capable of achieving a required signal-to-noise ratio. |
