Manufacturing method of image pickup apparatus for endoscope, image pickup apparatus for endoscope, and endoscope

An image pickup apparatus for endoscope manufactured by a manufacturing method of the image pickup apparatus for endoscope comprising:

• manufacturing an optical member in which a plurality of optical devices are stacked and an image pickup member including an image pickup device having a light receiving surface;
• measuring a position of an image-forming plane on which an object image, light of which is focused by the optical member, is formed;
• stacking the optical member and the image pickup member;
• adjusting an interval between the optical member and the image pickup member so that a measured position of the image-forming plane becomes a position of the light receiving surface;
• and
• fixing the optical member and the image pickup member in a state of the adjusted interval by performing curing processing on a transparent resin disposed to fill an optical path between the optical member and the image pickup member.

An image pickup apparatus for endoscope comprising:

• an optical member in which a plurality of optical devices are stacked;
• an image pickup member including an image pickup device having a light receiving surface;
• and
• a transparent resin which fills an optical path between the optical member and the image pickup member,
• wherein an interval between the optical member and the image pickup member is fixed by the transparent resin in a state where an object image, light of which is focused by the optical member, is formed on the light receiving surface.

An endoscope comprising:

• an image pickup apparatus for endoscope which comprises:
• an optical member in which a plurality of optical devices are stacked;
• an image pickup member including an image pickup device having a light receiving surface;
• and
• a transparent resin which fills an optical path between the optical member and the image pickup member,
• wherein an interval between the optical member and the image pickup member is fixed by the transparent resin in a state where an object image, light of which is focused by the optical member, is formed on the light receiving surface.