JP6877309B2 - 内視鏡用対物光学系および内視鏡 - Google Patents
内視鏡用対物光学系および内視鏡 Download PDFInfo
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- JP6877309B2 JP6877309B2 JP2017187093A JP2017187093A JP6877309B2 JP 6877309 B2 JP6877309 B2 JP 6877309B2 JP 2017187093 A JP2017187093 A JP 2017187093A JP 2017187093 A JP2017187093 A JP 2017187093A JP 6877309 B2 JP6877309 B2 JP 6877309B2
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- optical system
- objective optical
- endoscope
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- 230000003287 optical effect Effects 0.000 title claims description 137
- 230000014509 gene expression Effects 0.000 claims description 27
- 230000004907 flux Effects 0.000 claims description 10
- 210000001747 pupil Anatomy 0.000 claims description 4
- 230000004075 alteration Effects 0.000 description 32
- 238000010586 diagram Methods 0.000 description 23
- 238000003384 imaging method Methods 0.000 description 7
- 239000013256 coordination polymer Substances 0.000 description 6
- 239000006059 cover glass Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000005286 illumination Methods 0.000 description 5
- 201000009310 astigmatism Diseases 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 208000035473 Communicable disease Diseases 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- 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
- G02B23/2407—Optical details
- G02B23/2423—Optical details of the distal end
- G02B23/243—Objectives for endoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00096—Optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
- A61B1/00163—Optical arrangements
- A61B1/00174—Optical arrangements characterised by the viewing angles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
- A61B1/00163—Optical arrangements
- A61B1/00188—Optical arrangements with focusing or zooming features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/04—Reversed telephoto objectives
-
- 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
- G02B23/2407—Optical details
- G02B23/2461—Illumination
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- Surgery (AREA)
- General Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biophysics (AREA)
- Lenses (AREA)
Description
|FS/f|<0.75 …(1)
HI/(tan(ω)×|f|)<0.75 …(4)
0≦|FS/f|<0.5 …(1−1)
−2<βR<−0.8 …(2)
−1.5<βR<−0.9 …(2−1)
βR=HI/HM
BD/(2×HI)<1.2 …(3)
0.5<BD/(2×HI)<1.1 …(3−1)
0.01<HI/(tan(ω)×|f|)<0.65 …(4−1)
|FS/f|<0.75 …(1)
|FS/f|<0.75 …(1)
0≦|FS/f|<0.5 …(1−1)
−2<βR<−0.8 …(2)
−1.5<βR<−0.9 …(2−1)
BD/(2×HI)<1.2 …(3)
0.5<BD/(2×HI)<1.1 …(3−1)
HI/(tan(ω)×|f|)<0.75 …(4)
0.01<HI/(tan(ω)×|f|)<0.65 …(4−1)
100 内視鏡
102 操作部
104 挿入部
106 ユニバーサルコード
107 軟性部
108 湾曲部
109 湾曲操作ノブ
110 先端部
CP 平行平面板
L1〜L13 レンズ
PP 光学部材
Sim 結像面
St 開口絞り
a 軸上光束
b 最大画角の光束
Z 光軸
Claims (9)
- 物体面と共役な位置に中間像を形成し、該中間像を結像面に再結像させる内視鏡用対物光学系であって、
前記中間像と前記結像面の間に絞りを有し、
最も物体側のレンズ面から近軸における入射瞳位置までの光軸上の距離をFS、
全系の焦点距離をf、
前記結像面における最大有効像高をHI、
全系の半画角をωとした場合、
|FS/f|<0.75 …(1)
HI/(tan(ω)×|f|)<0.75 …(4)
で表される条件式(1)および(4)を満足する内視鏡用対物光学系。 - 前記中間像に対する前記結像面の近軸におけるリレー倍率をβRとした場合、
−2<βR<−0.8 …(2)
で表される条件式(2)を満足する
請求項1記載の内視鏡用対物光学系。 - 全系の各レンズ面における有効光束径の中で最大有効光束径をBD、
前記結像面における最大有効像高をHIとした場合、
BD/(2×HI)<1.2 …(3)
で表される条件式(3)を満足する
請求項1または2記載の内視鏡用対物光学系。 - 最も物体側のレンズ面よりも物体側に平行平面板を有する
請求項1から3のいずれか1項記載の内視鏡用対物光学系。 - 0≦|FS/f|<0.5 …(1−1)
で表される条件式(1−1)を満足する
請求項1記載の内視鏡用対物光学系。 - −1.5<βR<−0.9 …(2−1)
で表される条件式(2−1)を満足する
請求項2記載の内視鏡用対物光学系。 - 0.5<BD/(2×HI)<1.1 …(3−1)
で表される条件式(3−1)を満足する
請求項3記載の内視鏡用対物光学系。 - 0.01<HI/(tan(ω)×|f|)<0.65 …(4−1)
で表される条件式(4−1)を満足する
請求項1記載の内視鏡用対物光学系。 - 請求項1から8のいずれか1項記載の内視鏡用対物光学系を備えた内視鏡。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017187093A JP6877309B2 (ja) | 2017-09-27 | 2017-09-27 | 内視鏡用対物光学系および内視鏡 |
US16/135,041 US11169369B2 (en) | 2017-09-27 | 2018-09-19 | Objective optical system for endoscope and endoscope |
CN201811121349.5A CN109557658B (zh) | 2017-09-27 | 2018-09-25 | 内窥镜用对物光学系统及内窥镜 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017187093A JP6877309B2 (ja) | 2017-09-27 | 2017-09-27 | 内視鏡用対物光学系および内視鏡 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019061168A JP2019061168A (ja) | 2019-04-18 |
JP6877309B2 true JP6877309B2 (ja) | 2021-05-26 |
Family
ID=65806883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017187093A Active JP6877309B2 (ja) | 2017-09-27 | 2017-09-27 | 内視鏡用対物光学系および内視鏡 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11169369B2 (ja) |
JP (1) | JP6877309B2 (ja) |
CN (1) | CN109557658B (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6807818B2 (ja) * | 2017-09-27 | 2021-01-06 | 富士フイルム株式会社 | 内視鏡用対物光学系および内視鏡 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519760A (en) * | 1949-02-16 | 1950-08-22 | American Cystoscope Makers Inc | Lens system for gastroscopes or the like |
US3825315A (en) * | 1973-01-29 | 1974-07-23 | R Altman | Zoom lens optical system for infrared wavelengths |
JPS60263916A (ja) | 1984-06-13 | 1985-12-27 | Olympus Optical Co Ltd | 内焦式内視鏡対物レンズ |
JP2646350B2 (ja) | 1986-01-28 | 1997-08-27 | オリンパス光学工業株式会社 | 内視鏡対物レンズ |
JPH07119888B2 (ja) * | 1987-05-08 | 1995-12-20 | 株式会社ニコン | 再結像光学系 |
JPH04146405A (ja) | 1990-10-09 | 1992-05-20 | Olympus Optical Co Ltd | 内視鏡光学系 |
US5633754A (en) * | 1994-12-06 | 1997-05-27 | Hoogland; Jan | Integrated optical system for endoscopes and the like |
JP3563800B2 (ja) | 1995-01-09 | 2004-09-08 | オリンパス株式会社 | 観察光学装置 |
US5833596A (en) * | 1995-04-14 | 1998-11-10 | Vipera Systems, Inc. | Endoscope for imaging infrared emissions within the range of 2 to 14 microns |
DE19530477C2 (de) * | 1995-08-18 | 2000-08-10 | Storz Karl Gmbh & Co Kg | Endoskop mit variabler Vergrößerung |
US6052234A (en) * | 1996-04-16 | 2000-04-18 | Minolta Co., Ltd. | Viewfinder optical system |
JP3967337B2 (ja) | 2004-05-14 | 2007-08-29 | オリンパス株式会社 | 内視鏡および内視鏡装置 |
GB0613283D0 (en) | 2006-07-04 | 2006-11-01 | Secr Defence | Viewing Apparatus |
JP5185578B2 (ja) | 2007-08-22 | 2013-04-17 | オリンパス株式会社 | 細径対物光学系 |
CN103907045B (zh) * | 2011-11-01 | 2016-06-22 | 富士胶片株式会社 | 物镜光学系统及使用了该物镜光学系统的内窥镜装置 |
US9565996B2 (en) * | 2013-01-18 | 2017-02-14 | Ricoh Company, Ltd. | Plenoptic otoscope |
JP6253437B2 (ja) * | 2014-02-14 | 2017-12-27 | キヤノン株式会社 | 結像光学系及びそれを有する画像投射装置 |
RU2581435C1 (ru) * | 2014-12-04 | 2016-04-20 | Федеральное государственное бюджетное учреждение науки Конструкторско-технологический институт научного приборостроения Сибирского отделения Российской академии наук | Объектив для контроля отверстий |
JP5866565B1 (ja) | 2014-12-22 | 2016-02-17 | パナソニックIpマネジメント株式会社 | 内視鏡 |
JP6313241B2 (ja) | 2015-02-17 | 2018-04-18 | 富士フイルム株式会社 | 内視鏡用対物レンズおよび内視鏡 |
US20170119237A1 (en) * | 2015-10-28 | 2017-05-04 | Ricoh Company, Ltd. | Optical Design of a Light Field Otoscope |
US10067332B2 (en) * | 2015-11-05 | 2018-09-04 | Karl Storz Imaging, Inc. | Optical relay system with afocal menisci element |
JPWO2018047335A1 (ja) * | 2016-09-12 | 2019-07-18 | オリンパス株式会社 | 立体視内視鏡 |
CN106802479B (zh) | 2017-03-22 | 2019-09-13 | 精微视达医疗科技(武汉)有限公司 | 激光扫描中继镜组及具有该中继镜组的共聚焦显微内窥镜 |
-
2017
- 2017-09-27 JP JP2017187093A patent/JP6877309B2/ja active Active
-
2018
- 2018-09-19 US US16/135,041 patent/US11169369B2/en active Active
- 2018-09-25 CN CN201811121349.5A patent/CN109557658B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20190094515A1 (en) | 2019-03-28 |
US11169369B2 (en) | 2021-11-09 |
CN109557658B (zh) | 2021-11-16 |
CN109557658A (zh) | 2019-04-02 |
JP2019061168A (ja) | 2019-04-18 |
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