Imaging unit and endoscope
AssigneeFUJIFILM Corporation
InventorsGoki YAMAMOTO, Kazuaki TAKAHASHI, Kosuke TAKASAKI
Life of this patent
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Abstract
An imaging unit includes an objective optical system, an image sensor, a cover glass, a prism, and a heat conduction portion. The objective optical system imports light of an image of a subject. The image sensor forms an image of the light and outputs an imaging signal. The cover glass is provided on an imaging surface of the image sensor and seals the image sensor air-tightly. The prism is disposed between the objective optical system and the cover glass so as to guide the light from the objective optical system to the imaging surface. The heat conduction portion touches the prism and extends from the prism towards the image sensor so as to transmit heat of the image sensor to the prism.
Claims12
An imaging unit comprising:
- an objective optical system that imports light of an image of a subject;
- an image sensor that forms an image of the light and outputs an imaging signal;
- a cover glass that is provided on an imaging surface of the image sensor and seals the image sensor air-tightly;
- a prism that is disposed between the objective optical system and the cover glass so as to guide the light from the objective optical system to the imaging surface;
- and
- a heat conduction portion that touches the prism and extends from the prism towards the image sensor so as to transmit heat of the image sensor to the prism.
An endoscope comprising:
- an insertion portion in which an imaging unit is built,
- wherein the imaging unit includes:
- an objective optical system that imports light of an image of a subject;
- an image sensor that forms an image of the light and outputs an imaging signal;
- a cover glass that is provided on an imaging surface of the image sensor and seals the image sensor air-tightly;
- a prism that is disposed between the objective optical system and the cover glass so as to guide the light from the objective optical system to the imaging surface;
- and
- a heat conduction portion that touches the prism and extends from the prism towards the image sensor so as to transmit heat of the image sensor to the prism.
Dependencies are inferred from the claim text.