To provide an image pick-up device which is excellent in color repeatability and resolution and is capable of suppressing parallax generation, and obtaining an image in a wide range.

In each of image pick-up means 11, 12, 13, 14, NP points 5 are set rearward of an image pick-up element and are collected in a region within a radius of about 20 mm around one NP point. The image pick-up device 10 comprises: a separation means 3 for separating beams passing through lenses 1, 2 into a plurality of beams having a different wavelength; and a plurality of image pick-up elements 4R, 4G, 4B for detecting the plurality of beams separated, respectively.