An imaging device comprises a solid-state imaging device and an objective optical unit. The solid-state imaging device has a substrate, one surface of which is sectioned into: a light-receiving unit region in which a light-receiving unit is provided that generates an imaging signal of a captured optical image of a subject a circuit unit region in which a circuit unit is provided that performs signal processing of the imaging signal generated in the light-receiving unit and generates a driving signal for driving the light-receiving unit and a terminal unit region in which a plurality of terminals are provided that are used when signals are exchanged between the circuit unit and an external device. The objective optical unit has: an objective lens unit configured by including a unit main body equipped with an objective lens group for forming an optical image of the subject and a holding frame to which the unit main body is held securely and a prism for bending the optical axis of the unit main body and guiding the optical image passing through the objective lens unit into the light-receiving unit of the solid-state imaging device. The prism of the objective optical unit is disposed on the light-receiving unit region of the substrate, and the holding frame constituting the objective lens unit of the objective optical unit is disposed on the circuit unit region.Linvention concerne un dispositif dimagerie qui comprend un dispositif dimagerie à semi-conducteurs et une unité optique dobjectifs. Le dispositif dimagerie à semi-conducteurs comprend un substrat, dont une surface est découpée en : une région dunité de réception de lumière dans laquelle une unité de réception de lumière est disposée, laquelle génère un signal dimagerie dune image optique capturée dun sujet une région dunité de circuit dans laquelle une unité de circuit est disposée, laquelle réalise un traitement de signal du signal dimagerie généré dans lunité de réception de lumière et génère un signal de com
