Patent ID: 7430009

Claim:
An image pickup device comprising: a group of lenses for adjusting a luminous flux of a photographic light so as to image-form the photographic light; a spectral prism for spectrally separating the photographic light provided in an image-formation area of the photographic light whose luminous flux is adjusted by the group of lenses; imaging elements for respectively imaging lights spectrally separated by the spectral prism; an infrared-ray cut filter for eliminating an infra-red element of the photographic light whose luminous flux is being adjusted; and a mechanism unit for advancing and retreating the infrared-ray cut filter between a position in an optical path of the photographic light and a position distant from the optical path of the photographic light, wherein the infrared-ray cut filter and the mechanism unit are disposed in a luminous flux convergence area of the photographic light whose luminous flux is being adjusted by the group of lenses.