Image capturing device including a spectrally-selectively transmissive diaphragm

An image-capturing device, comprising:

• a photographing optical system that is used to form subject images;
• a first imaging device that receives light rays of a first spectrum through said photographing optical system and captures one of said subject images formed by said light rays of said first spectrum;
• a second imaging device that receives light rays of a second spectrum through said photographing optical system and captures one of said subject images formed by said light rays of said second spectrum;
• a diaphragm that is mounted in said photographing optical system, and that forms a first area and a second area;
• a light source that radiates measurement light beams of said first spectrum to a subject at a predetermined timing;
• and
• a distance information sensing processor that drives said first imaging device in association with the measurement light beams radiated from said light source, so that a pixel value of an image sensed by said first imaging device relates to a distance between a pixel of said first imaging device and a corresponding point on the subject;
• wherein said first area transmits light rays of said first spectrum and said second spectrum, and said second area selectively transmits light rays of one of said first spectrum and said second spectrum.