ENDOSCOPE
An endoscope includes an image-capturing module. The image-capturing module includes a lens barrel housing an optical system, an image sensor, a sensor holding member that relatively fixes the lens barrel and the image sensor, and a flexible substrate through which a signal of the image sensor is transmitted to a transmission cable. The flexible substrate is bendable at an arbitrary number of bending portion.
1 . An endoscope comprising:
an image-capturing module that includes
a lens barrel housing an optical system,
an image sensor,
a sensor holding member that relatively fixes the lens barrel and the image sensor, and
a flexible substrate through which a signal of the image sensor is transmitted to a transmission cable,
wherein the flexible substrate is bendable at an arbitrary number of bending portion.
2 . The endoscope according to claim 1 ,
wherein when the image-capturing module is incorporated into a rigid portion having rigidity provided at a tip end of a flexible portion, the bending portion is in a bent state according to a shape of the rigid portion.
3 . The endoscope according to claim 2 ,
wherein in the image-capturing module, the bending portion is in a bent state such that an optical axis of the optical system is oriented in a same direction as an axis of the rigid portion.
4 . The endoscope according to claim 2 ,
wherein in the image-capturing module, the bending portion is in a bent state such that an optical axis of the optical system is oriented to be orthogonal to an axis of the rigid portion.
5 . The endoscope according to claim 2 ,
wherein in the image-capturing module, the bending portion is in a bent state such that an optical axis of the optical system is oriented to intersect an axis of the rigid portion.