Endoscope and method for manufacturing endoscope
AssigneeKaneka Corporation
InventorShoma Sonohara
Life of this patent
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Abstract
An endoscope capable of brightly illuminating a body cavity, and a method for manufacturing the endoscope are disclosed. The endoscope has an imaging element, a light-emitting part, and a transparent resin member that is fixed to the imaging element and the light-emitting part and through which light emitted from the light-emitting part is capable of passing. The transparent resin member has, in a region having a length of 0.1 mm in a longitudinal axis direction of the endoscope, one or more and ten or fewer bubbles each having a major axis of 50 μm or more and 500 μm or less.
Claims15
An endoscope comprising:
- an imaging element;
- a light-emitting part;
- and
- a transparent resin member that is fixed to the imaging element and the light-emitting part and through which light emitted from the light-emitting part is capable of passing,
- wherein the transparent resin member has, in a region having a length of 0.1 mm in a longitudinal axis direction of the endoscope, one or more and ten or fewer bubbles each having a major axis of 50 μm or more and 500 μm or less.
A method for manufacturing an endoscope,
- the endoscope comprising:
- an imaging element,
- a light-emitting part, and
- a transparent resin member through which light emitted from the light-emitting part is capable of passing and which has, in a region having a length of 0.1 mm in a longitudinal axis direction, one or more and ten or fewer bubbles each having a major axis of 50 μm or more and 500 μm or less,
- the method comprising:
- placing the imaging element and the light-emitting part in an inner lumen of a heat-shrinkable tube;
- heating the heat-shrinkable tube;
- filling the inner lumen of the heat-shrinkable tube with a transparent liquid resin that is curable by ultraviolet irradiation;
- forming bubbles in the transparent liquid resin;
- irradiating the transparent liquid resin with ultraviolet light to form the transparent resin member;
- and
- removing the heat-shrinkable tube.
Dependencies are inferred from the claim text.