PURPOSE: To attain a part exchange, camera production, cost a satisfactory appearance at the time of detaching an optical block from a case.

CONSTITUTION: A connector assembling body 25 having a second connector 28 which is attachable and detachable to and from a first connector 7, is provided at a prism block 9 so as to be freely attachable and detachable. Then, the connector assembling body 25 is connected through flexible substrates 31 and 32 with CCD image pickup elements 16-18, and constituted of the connector assembling body which is movable to a connector connecting face direction. Thus, a casing 4 and the prism block 9 can be exactly connected and detached by the attachment of the connectors 7 and 28, so that a conventional harness connecting structure and an exclusive cable conventionally necessitated at the time of the maintenance or the like ban be unnecessitated. And also, a stress can not be generated at the connectors 7 and 28 at the time of connecting the connectors, and a floating structure conventionally necessitated as a connector attaching structure can be unnecessitated.