SPECTROSCOPIC MEASUREMENT DEVICE, IMAGE FORMING APPARATUS, AND SPECTROSCOPIC MEASUREMENT METHOD

摘要

A printer includes a spectroscope that includes a wavelength-selective interference filter on which light from a measurement target is incident and a carriage moving unit that moves the spectroscope in an X direction with respect to the measurement target. The wavelength-selective interference filter includes a pair of reflecting films and an electrostatic actuator that changes a gap dimension between the pair of reflecting films. A first spectroscopic measurement process that performs spectroscopic measurement while the gap dimension between the reflecting films is decreasing and a second spectroscopic measurement process that performs spectroscopic measurement while the gap dimension is increasing are alternately performed during the movement of the spectroscope by the carriage moving unit in the X direction.

主权项

1. A spectroscopic measurement device comprising:
a spectroscope that includes a wavelength-selective interference filter on which light from a measurement target is incident; and a moving mechanism that moves the spectroscope relative to the measurement target in a predetermined direction, wherein the wavelength-selective interference filter includes a pair of reflecting films and a gap changer that changes a gap dimension between the pair of reflecting films, and a first spectroscopic measurement that performs spectroscopic measurement while the gap dimension is decreasing and a second spectroscopic measurement that performs the spectroscopic measurement while the gap dimension is increasing are alternately performed during the relative movement of the spectroscope in the predetermined direction.