JP2013542467A - マルチセンサ内視鏡のための光学系 - Google Patents
マルチセンサ内視鏡のための光学系 Download PDFInfo
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Abstract
【選択図】なし
Description
f(第1の後方正レンズ)≦1.8f、ただし、fは全レンズ系の合成焦点距離、および、f(第1の後方正レンズ)は、第1の後方正レンズの焦点距離である。
f(第1の後方正レンズ)≦1.8f、ただし、fは全レンズ系の合成焦点距離、および、f(第1の後方正レンズ)は、第1の後方正レンズの焦点距離である。
f(第1の後方正レンズ)≦1.8f、ただし、fは全レンズ系の合成焦点距離、および、f(第1の後方正レンズ)は、第1の後方正レンズの焦点距離である。
表T1(FOV=164°、DOF=3−110mm、f=1.234mm、全光路長 4.09mm)
表T3(FOV=164°、DOF=3−110mm、f=1.06mm、全光路長 4.69mm)
R2−レンズの後面の曲率半径(物体と反対を向く)
Th−レンズの厚さ−前面の中心から後面の中心まで
ガラス−レンズのガラスの種類
d1−レンズの前方光学面の半径
d2−レンズの後方光学面の半径
D−レンズなどの構成要素の後面の中心から次隣の光学要素の前面まで測定されたレンズなどの構成要素の間の距離(絞りSの場合、距離は、絞りの前方にある構成要素の後面の中心から次隣の構成要素の前面まで測定される)
一般的に用いられるように、曲率半径が無限大とは、平面であると解釈される。全てのレンズは任意で球面である。
任意で、後方の複レンズ433−434(433’−434’)を固定するステップ、
および、
前面レンズ430(430’)をバレル内で組み立てるステップ、
レンズ431(431’)をバレル内で組み立てるステップ、
レンズ432(432’)をバレル内で組み立てるステップ、
後方の複レンズ433−434(433’−434’)をバレル内で組み立てるステップ。
また、前面レンズ430(430’)は最後に組み立てられてもよいことに注意されたい。
Claims (21)
- マルチセンサ内視鏡の先端部分のための光学系であって、
直視方向向きのカメラセンサと、
直視対物レンズ系と、
側視方向向きのカメラセンサと、
側視対物レンズ系とを備え、
前記直視および側視対物レンズ系のうちの少なくとも1つが絞り羽根により分離される前群および後群サブシステムを備え、
前記前群サブシステムが、物体側から順に、第1の前方負レンズと第2の前方正レンズとを備え、
前記後群サブシステムが、物体側から順に、第1の後方正レンズと、第2の後方正レンズを備える色消しサブアセンブリ(任意で、複合色消しサブアセンブリ)と、第3の後方負レンズとを備え、以下の条件、
f(第1の後方正レンズ)≦1.8fを満たすが、ただし、fは全レンズ系の合成焦点距離、および、f(第1の後方正レンズ)は、前記第1の後方正レンズの焦点距離である光学系。 - 前記前群サブシステムが、前記第1の前方負レンズと前記第2の前方正レンズとの間に配置される追加の前方メニスカスレンズをさらに備える、請求項1に記載の光学系。
- 前記後群サブシステムが、前記第3の後方負レンズと前記直視方向向きカメラセンサおよび前記側視方向向きカメラセンサの両方、またはいずれか一方との間に後方保護ガラスをさらに含み、前記後方保護ガラスが、前記直視方向向きカメラセンサおよび前記側視方向向きカメラセンサの両方、またはいずれか一方の検出器アレイを保護するように適合される、請求項1に記載の光学系。
- f(第1の後方正レンズ)=1.8f、ただし、fは全レンズ系の合成焦点距離、および、f(第1の後方正レンズ)が、前記第1の後方正レンズの焦点距離である、請求項1に記載の光学系。
- 前記直視方向向きのカメラセンサおよび前記直視対物レンズ系が、焦点深度(DOF)が4から110mmの間となるように適合される、請求項1に記載の光学系。
- 前記直視方向向きのカメラセンサおよび前記直視対物レンズ系が、焦点深度(DOF)が3.5から50mmの間となるように適合される、請求項5に記載の光学系。
- 前記直視方向向きのカメラセンサおよび前記直視対物レンズ系が、焦点深度(DOF)が5から50mmの間で少なくとも1mm当たり60線の実効空間分解能となるように適合される、請求項1に記載の光学系。
- 前記直視方向向きのカメラセンサおよび前記直視対物レンズ系が、焦点深度(DOF)が5から50mmの間で1°当たり約2′以下の実効角分解能となるように適合される、請求項1に記載の光学系。
- 前記直視方向向きのカメラセンサおよび前記直視対物レンズ系が、約150°以上の視野(FOV)となるように適合される、請求項1に記載の光学系。
- 前記直視方向向きのカメラセンサおよび前記直視対物レンズ系が、約170°以上の視野(FOV)となるように適合される、請求項9に記載の光学系。
- 前記直視方向向きのカメラセンサおよび前記直視対物レンズ系が、約5mm以下の全光路長を有する、請求項1に記載の光学系。
- 前記側視方向向きのカメラセンサおよび前記側視対物レンズ系が、焦点深度(DOF)が3.5から50mmの間となるように適合される、請求項1に記載の光学系。
- 前記側視方向向きのカメラセンサおよび前記側視対物レンズ系が、焦点深度(DOF)が3から30mmの間となるように適合される、請求項1に記載の光学系。
- 前記側視方向向きのカメラセンサおよび前記側視対物レンズ系が、焦点深度(DOF)が5から50mmの間で少なくとも1mm当たり60線の実効空間分解能となるように適合される、請求項1に記載の光学系。
- 前記側視方向向きのカメラセンサおよび前記側視対物レンズ系が、焦点深度(DOF)が5から50mmの間で1°当たり約2′以下の実効角分解能となるように適合される、請求項1に記載の光学系。
- 前記側視方向向きのカメラセンサおよび前記側視対物レンズ系が、約150°以上の視野(FOV)となるように適合される、請求項1に記載の光学系。
- 前記側視方向向きのカメラセンサおよび前記側視対物レンズ系が、約170°以上の視野(FOV)となるように適合される、請求項1に記載の光学系。
- 前記側視方向向きのカメラセンサおよび前記側視対物レンズ系が、約5mm以下の全光路長を有する、請求項1に記載の光学系。
- 前記第1の前方負レンズの直径が2.5mm以下である、請求項1に記載の光学系。
- マルチセンサ内視鏡の直視方向向きカメラセンサおよび側視方向向きのカメラセンサのうちの少なくとも1つのための対物レンズ系であって、
絞り羽根により分離される前群および後群サブシステムを備え、
前記前群サブシステムが、第1の前方負レンズと第2の前方正レンズとを備え、
前記後群サブシステムが、第1の後方正レンズと、第2の後方正レンズを備える色消しサブアセンブリ(任意で、複合色消しサブアセンブリ)と、第3の後方負レンズとを備え、
以下の条件、
f(第1の後方正レンズ)≦1.8fを満たすが、ただし、fは全レンズ系の合成焦点距離、および、f(第1の後方正レンズ)は、前記第1の後方正レンズの焦点距離である、対物レンズ系。 - 光学系を備えるマルチセンサ内視鏡の先端部分であって、
直視方向向きのカメラセンサと、
直視対物レンズ系と、
側視方向向きのカメラセンサと、
側視対物レンズ系とを備え、
前記直視および側視対物レンズ系のうちの少なくとも1つが絞り羽根により分離される前群および後群サブシステムを備え、
前記前群サブシステムが、第1の前方負レンズと第2の前方正レンズとを備え、
前記後群サブシステムが、第1の後方正レンズと、第2の後方正レンズを備える色消しサブアセンブリ(任意で、複合色消しサブアセンブリ)と、第3の後方負レンズとを備え、以下の条件、
f(第1の後方正レンズ)≦1.8fを満たすが、ただし、fは全レンズ系の合成焦点距離、および、f(第1の後方正レンズ)は、前記第1の後方正レンズの焦点距離である、マルチセンサ内視鏡の先端部分。
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PCT/IL2011/000832 WO2012056453A2 (en) | 2010-10-28 | 2011-10-27 | Optical systems for multi-sensor endoscopes |
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CN103403605A (zh) | 2013-11-20 |
US10203493B2 (en) | 2019-02-12 |
EP3540495A1 (en) | 2019-09-18 |
JP5944912B2 (ja) | 2016-07-05 |
EP2635932A4 (en) | 2017-11-08 |
EP2635932B1 (en) | 2019-06-05 |
JP2016180998A (ja) | 2016-10-13 |
WO2012056453A2 (en) | 2012-05-03 |
US11543646B2 (en) | 2023-01-03 |
JP6262285B2 (ja) | 2018-01-17 |
US20170023787A1 (en) | 2017-01-26 |
EP2635932A2 (en) | 2013-09-11 |
WO2012056453A3 (en) | 2012-07-19 |
US20130296649A1 (en) | 2013-11-07 |
US20190121118A1 (en) | 2019-04-25 |
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