JPWO2019138639A1 - 積層レンズアレイ、内視鏡、撮像ユニット - Google Patents
積層レンズアレイ、内視鏡、撮像ユニット Download PDFInfo
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- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
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- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
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- A—HUMAN NECESSITIES
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- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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Abstract
Description
図1は、本実施の形態の積層レンズアレイを挿入部の先端部内に具備する内視鏡を示す図である。
図7は、本実施の形態の積層レンズアレイの側面図、図8は、図7の積層レンズアレイを先端部内に設けた構成を概略的に示す図である。
さらに、本発明の一態様による撮像ユニットは、前記積層レンズアレイと、前記積層レンズアレイを透過した光が入光される撮像素子と、を具備する。
Claims (7)
- 一方側に配置される第1のレンズ要素と、前記一方側とは反対の他方側に配置される第2のレンズ要素とが前記一方側と前記他方側とを結ぶ積層方向に沿って積層された積層レンズアレイであって、
前記第1のレンズ要素及び前記第2のレンズ要素を含む積層体の外周面は、前記積層方向に沿って位置しているとともに、前記積層方向に沿った前記外周面の少なくとも一部に、前記積層体の中心に向かって凹んで形成された凹部を有することを特徴とする積層レンズアレイ。 - 前記第2のレンズ要素は、複数から構成されていることを特徴とする請求項1に記載の積層レンズアレイ。
- 前記凹部は、前記第1のレンズ要素及び前記第2のレンズ要素の各外周面が凹むことにより形成されていることを特徴とする請求項1に記載の積層レンズアレイ。
- 前記第2のレンズ要素は、該第2のレンズ要素における最も前記他方側に位置する第3のレンズ要素と、前記第1のレンズ要素と前記第3のレンズ要素との間において前記積層方向において挟まれた第4のレンズ要素とから構成されており、
前記凹部は、前記第4のレンズ要素の外周面が、前記第1のレンズ要素及び前記第3のレンズ要素の各外周面よりも前記積層体の前記中心側に位置することによって形成されており、
前記凹部により、前記第4のレンズ要素の前記外周面の外径は、前記第1のレンズ要素及び前記第3のレンズ要素の各前記外周面の外径よりも小さく形成されていることを特徴とする請求項2に記載の積層レンズアレイ。 - 前記第1のレンズ要素及び前記第3のレンズ要素の各前記外周面に、該各前記外周面が凹むことにより前記凹部が形成されていることを特徴とする請求項4に記載の積層レンズアレイ。
- 前記請求項1に記載の前記積層レンズアレイを挿入部の先端部に具備する内視鏡であって、
前記凹部の外周に沿って、前記先端部内の他の内蔵物が配置されていることを特徴とする内視鏡。 - 前記先端部内において前記第2のレンズ要素よりも前記他方側に、前記積層レンズアレイによって集光された光が入光される撮像素子が設けられており、
前記凹部は、前記積層体の前記外周面に対して、前記積層体における前記撮像素子に入光される光が通過する有効視野領域外に形成されていることを特徴とする請求項6に記載の内視鏡。
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JP2018001362 | 2018-01-09 | ||
JP2018001362 | 2018-01-09 | ||
PCT/JP2018/039110 WO2019138639A1 (ja) | 2018-01-09 | 2018-10-19 | 積層レンズアレイ、内視鏡 |
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JPWO2019138639A1 true JPWO2019138639A1 (ja) | 2020-11-26 |
JP6898471B2 JP6898471B2 (ja) | 2021-07-07 |
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US (1) | US20200341263A1 (ja) |
JP (1) | JP6898471B2 (ja) |
CN (1) | CN111566519B (ja) |
WO (1) | WO2019138639A1 (ja) |
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WO2020148860A1 (ja) | 2019-01-17 | 2020-07-23 | オリンパス株式会社 | 内視鏡用撮像装置の製造方法、内視鏡用撮像装置、および、内視鏡 |
CN113366359B (zh) | 2019-03-12 | 2022-11-15 | 奥林巴斯株式会社 | 内窥镜用摄像装置及内窥镜 |
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- 2018-10-19 JP JP2019564297A patent/JP6898471B2/ja active Active
- 2018-10-19 WO PCT/JP2018/039110 patent/WO2019138639A1/ja active Application Filing
- 2018-10-19 CN CN201880085925.7A patent/CN111566519B/zh active Active
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- 2020-07-08 US US16/923,354 patent/US20200341263A1/en active Pending
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JPH06233738A (ja) * | 1993-02-10 | 1994-08-23 | Olympus Optical Co Ltd | 内視鏡 |
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JP6898471B2 (ja) | 2021-07-07 |
CN111566519B (zh) | 2022-03-15 |
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