Provided are an imaging unit and imaging system which are capable of easily determining abnormal areas inside the imaging unit. The imaging unit is provided with: an imaging component having an imaging element for receiving light from an imaging subject, and subjecting the light to photoelectric conversion a bifurcation unit for bifurcating a signal, which contains image information inputted from the imaging component, into two a first converter for performing a conversion process for converting one bifurcated signal into an optical signal a second converter for performing a conversion process for converting the other bifurcated signal into an electrical signal a first output unit for outputting the optical signal converted by the first converter to the exterior a second output unit for outputting the electrical signal converted by the second converter to the exterior a detection unit for detecting a unit connected to the imaging unit and a control component for controlling so as to output the optical signal to the first output unit when the detected unit is a control unit, and outputting the electrical signal to the second output unit when the detected unit is an inspection unit.La présente invention concerne une unité dimagerie et un système dimagerie capables de déterminer facilement des zones anormales à lintérieur de lunité dimagerie. Lunité dimagerie est dotée de: un composant dimagerie ayant un élément dimagerie afin de recevoir de la lumière à partir dun objet dimagerie, et en soumettant la lumière à une conversion photoélectrique une unité de dérivation permettant de faire bifurquer un signal dans deux directions, signal qui contient des informations de limage saisies à partir du composant dimagerie un premier convertisseur permettant deffectuer un processus de conversion afin de transformer lun des deux signaux en un signal optique un second convertisseur permettant deffectuer un processus de conversion afin de transformer lautre signal dérivé en un signal