Olympus Corporation

Tomohisa Kaneko

Takahiko Mitani

An image pickup unit for endoscope of the invention includes: an image pickup device including on a front face a plurality of electrode pads aligned along one side face; and a circuit substrate having an end face from which a lead group, a distal end portion of which is bonded to the plurality of electrode pads, is extended, wherein the end face of the circuit substrate is disposed more rearward than a rear face of the image pickup device, the lead group includes a first lead constituted of at least one of a lead connected to an image pickup device reference electric potential and a dummy lead which does not include an electrical function, and another second lead, and the first lead is closer to the edge portion where the rear face and the side face of the image pickup device intersect than the second lead is.

Image pickup unit for endoscope having first and second leads with differing distances to image pickup device

In this invention, an image pickup unit for endoscope including an image pickup device includes, in an optical black region of the image pickup device, a phase reference pixel region in which a pixel that outputs a signal capable of being used for phase adjustment of the video by receiving light is disposed, and an optical axis of an objective optical system member having an image circle which is narrower than an effective pixel region of the image pickup device is arranged at a position closer to the phase reference pixel region with respect to a center of the effective pixel region such that light transmitted through the objective optical system member can reach the phase reference pixel region.

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Hino, Japan

Tomohisa Kaneko