Patent ID: 8456569

Claim:
A camera body comprising a recess to which an imaging unit is detachably attached to be placed therein, wherein: the imaging unit includes an optical system configured to guide light incoming from a subject, an image pickup device configured to convert a subject image guided by the optical system into an electrical signal, and an imaging unit connector section; the recess includes a back wall section, an upper wall section, and a side wall section to be opened to a lower side, a front side, and a lateral side of the camera body, the back wall section facing a rear of the imaging unit when the imaging unit is placed in the recess, the upper wall section facing a topside of the imaging unit when the imaging unit is placed in the recess and being connected to the back wall section, the side wall section facing a side surface of the imaging unit when the imaging unit is placed in the recess and being connected to the back wall section and the side wall section; the camera body has a camera body connector section; the camera body has a guide mechanism configured to control a position of the camera body connector section in relation to a position of the imaging unit connector section in cooperation with the imaging unit and guide the imaging unit in a direction where the imaging unit approaches or separates from the side wall section of the camera body; the imaging unit has a rear surface on which at least two guiding grooves and an engagement plate section are formed, the at least two guiding grooves being provided to be extended between an edge of the imaging unit and an opposite edge of the imaging unit; one of the camera body and the imaging unit has a biasing member configured to bias the imaging unit toward the back wall section of the camera body; the guide mechanism has at least two guide protrusions provided on the back wall section of the camera body, the at least two guide protrusions being capable of being inserted into the at least two guiding grooves; and the guide mechanism has an engagement claw formed on the back wall section of the camera body so as to face the engagement plate section and to engage with the biasing member when the imaging unit is attached to the camera body.