ENDOSCOPE

• Main Author: HARAGUCHI NAOYUKI
• Format: Patent
• Language: English; Japanese
• Published: 09.03.2017
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SURGERY

PROBLEM TO BE SOLVED: To reduce the size and the cost of an endoscope.SOLUTION: An endoscope includes: a lens unit 35 in which lenses L1, L2, L3 are accommodated in a lens support member 39; an image sensor 33 having an imaging area 41 covered with sensor cover glass 43; a bonding resin 37 with which the lens unit 35 is fixed to the sensor cover glass 43 such that the optical axes of the lenses L1, L2, L3 coincide with the center of the imaging area 41; a distal portion 15, the maximum outer diameter Dmax of which is set to a range between 1.8 mm and a finite diameter equivalent to the diameter of the circumscribed circle of a substrate of the image sensor 33 which can be obtained via dicing; a molded part 65 in which at least a portion of the lens unit 35 and the image sensor 33 are coated with and are fixed by a molded resin 17; and a tubular sheath 61 that is formed to have the same outer diameter as that of the distal portion 15 and connected to cover at least a portion of the molded part 65.SELECTED DRAWING: Figure 3 【課題】内視鏡において小型化、コスト低減を図る。【解決手段】内視鏡において、レンズ支持部材３９にレンズＬ１，Ｌ２，Ｌ３を収容するレンズユニット３５と、撮像面４１が素子カバーガラス４３によって覆われる撮像素子３３と、撮像面４１の中心にレンズＬ１，Ｌ２，Ｌ３の光軸を一致させたレンズユニット３５と素子カバーガラス４３とを固定する接着用樹脂３７と、最大外径Ｄｍａｘがダイシング可能な撮像素子３３の基板の外接円の直径に相当する有限径〜１．８ｍｍの範囲で形成される先端部１５と、レンズユニット３５の少なくとも一部及び撮像素子３３をモールド樹脂１７によって被覆して固定するモールド部６５と、先端部１５と同一外径で形成されてモールド部６５の少なくとも一部を覆って接続される管状のシース６１と、を設けた。【選択図】図３