Endoscope imaging module with signal cable and flexible linear structure

An imaging module comprising:

• an image-sensing device;
• a first substrate comprising a wiring and is disposed on a back surface side of the image-sensing device that is opposite an imaging surface of the image-sensing device and extends from the image-sensing device to the opposite side of the imaging surface;
• a signal cable comprising:
• a signal line electrically connected to the image-sensing device via the wiring of the first substrate;
• and
• an outer coating accommodating the signal line;
• a second substrate comprising a wiring electrically connected to a rear end of the signal line opposite a front end of the signal line connected to the wiring of the first substrate;
• and
• a flexible linear structure disposed along the signal cable,
• wherein
• each of the first substrate and the second substrate comprises a cable terminal electrically connected to the signal line on only one surface of the first substrate and on only one surface of the second substrate,
• each of the wiring of the first substrate and the wiring of the second substrate is electrically connected to the signal line via the cable terminal,
• if the signal cable extends straight without torsional deformation, where the one surface of the first substrate is an upper surface and a surface of the first substrate opposite the upper surface is a lower surface, then:
• the one surface of the second substrate is an upper surface, and
• a surface of the second substrate opposite the upper surface of the second substrate is a lower surface, and
• the flexible linear structure extends in a direction along the signal cable from a front-end portion of the flexible linear structure, wherein
• the front-end portion of the flexible linear structure is supported by a structure-front-end support and the first substrate, and
• the flexible linear structure is disposed on a side of the signal cable where the first substrate and the second substrate are disposed,
• an entirety of the first substrate, the front-end portion of the flexible linear structure, and the structure-front-end support are disposed within an outline of the back surface side of the image-sensing device when viewed from the back surface side,
• the structure-front-end support comprises a light guide, and
• the flexible linear structure comprises an optical fiber.