ELECTRONIC SCOPE, ELECTRONIC SCOPE SYSTEM, AND LENS UNIT

• Main Authors: DETSUKI EIJI, HAGA ITSUTO, SOFUE KENJI, HOSHI KIKUYOSHI, OGASAWARA KUNIAKI, WATABE HIROMI
• Format: Patent
• Language: English; Japanese
• Published: 01.03.2018
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SURGERY

PROBLEM TO BE SOLVED: To provide an electronic scope capable of making a part at an end part which cannot be flexibly deformed compact.SOLUTION: An electronic scope 2 includes a flexible tube 20 which has flexibility and is formed into a long shape and a lens unit 40 provided at the end of the flexible tube 20. The lens unit 40 includes: a CMOS image sensor 43 connected to a signal line 33 going through the inside of the flexible tube 20; a first objective lens 44 and a second objective lens 45 which form image of an object to be observed at a light receiving part of the CMOS image sensor 43 and are arranged on the same optical axis; and a filter 46 which is arranged between the first objective lens 44 and the second objective lens 45 and shields light in a prescribed wavelength band. The first objective lens 44 and the second objective lens 45 are in contact with the filter 46.SELECTED DRAWING: Figure 4 【課題】先端部の可撓変形不能な部分を小型化できる電子スコープを提供する。【解決手段】電子スコープ２は、可撓性を有し、長尺に形成された可撓管２０と、可撓管２０の先端に設けられたレンズユニット４０と、を備える。レンズユニット４０は、可撓管２０の内部を通る信号線３３に接続されたＣＭＯＳイメージセンサ４３と、観察対象物の像をＣＭＯＳイメージセンサ４３の受光部に結像するとともに、同一の光軸上に配置された第１対物レンズ４４および第２対物レンズ４５と、第１対物レンズ４４と第２対物レンズ４５との間に配置され、所定の波長帯域の光を遮断するフィルタ４６と、を備える。第１対物レンズ４４および第２対物レンズ４５は、フィルタ４６と当接している。【選択図】図４