Patent ID: 8922766

Claim:
A spectrometer comprising: a light source section that includes a plurality of light-emitting elements having different emission wavelengths and emits reference light, with which light emitted from the light-emitting elements is mixed, to an object; a wavelength selection element that selectively extracts light of a predetermined wavelength from light reflected or transmitted from or through the object; a detection section that detects the amount of light extracted from the wavelength selection element; and a control section, wherein the control section includes a mode switching section that switches a calibration mode for performing a calibration using the object as a reference calibration object, and a measurement mode for measuring spectral characteristics of an object to be measured using the object as the object to be measured, an outside light analysis section that analyzes characteristics of outside light in the calibration mode, a reference light setting section that sets the amount of light emitted from each light-emitting element of the light source section, in the calibration mode, on the basis of the characteristics of the outside light analyzed by the outside light analysis section, and a light source driving section that drives the light-emitting elements, in the measurement mode, on the basis of the amount of light emitted which is set by the reference light setting section.