1. A night vision apparatus, comprising: an illuminating device having one light source or two or more light sources, to emit light ranging from a visible light region to an infrared light region, a plurality of peaks existing in a wavelength spectrum in the visible light region; an imaging camera that receives light emitted from the illuminating device; and an optical band elimination filter that blocks only a part of peaks among the plurality of peaks, wherein an output image is obtained based on an image captured by the imaging camera through the optical band elimination filter.