JP2010142482A - 光走査型内視鏡プロセッサおよび光走査型内視鏡装置 - Google Patents
光走査型内視鏡プロセッサおよび光走査型内視鏡装置 Download PDFInfo
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Abstract
【解決手段】光走査型内視鏡プロセッサはスキャン駆動回路、タイミングコントローラ、受光器、およびA/Dコンバータを有する。スキャン駆動回路は光供給ファイバの出射端が等角速度で渦巻き型変位経路に沿って変位するようにファイバ駆動部を制御する。光供給ファイバの出射端から照射される白色光の観察対象領域における反射光が受光ユニットが受光する。受光ユニットにおける受光器が反射光の受光量に応じた画素信号を生成する。A/Dコントローラは画素信号をA/D変換して、デジタル信号である画素信号を生成する。タイミングコントローラは出射端と基準点との距離に対してA/D変換の周期が反比例するようにA/Dコントローラを制御する。
【選択図】図10
Description
図1は、本発明の一実施形態を適用した光走査型内視鏡プロセッサを有する光走査型内視鏡装置の外観を概略的に示す外観図である。
20 光走査型内視鏡プロセッサ
21 スキャン駆動回路
22 画像信号処理回路
23 タイミングコントローラ
40 受光ユニット
44a〜44c 第1〜第3のA/Dコンバータ
50 光走査型内視鏡
53 光供給ファイバ
54 ファイバ駆動部
55 反射光ファイバ
56 出射レンズ
Claims (5)
- 入射する光を第1の入射端から第1の出射端に伝達し伝達した光を前記第1の出射端からビーム状に出射する供給光伝達路と、前記第1の出射端を渦巻き型変位経路に沿って変位させる駆動部と、前記供給光伝達路から出射される光に対する観察対象領域における反射光または発する光を第2の入射端から第2の出射端に伝達する反射光伝達路とを有する光走査型内視鏡を駆動する光走査型内視鏡プロセッサであって、
前記反射光伝達路により伝達された光を受光して、受光量に応じた画素信号を生成する受光部と、
前記駆動部による前記渦巻き型変位経路上を変位するときの角速度と、前記渦巻き型変位経路上における前記第1の出射端の位置と前記渦巻き型変位経路の中心との距離である第1の距離と、前記受光部による前記画素信号の生成周期との積が所定の範囲内に入るように、前記角速度および前記生成周期の少なくとも一方を調整する制御部とを備える
ことを特徴とする光走査型内視鏡プロセッサ。 - 前記制御部は、前記角速度、前記第1の距離、および前記生成周期の積が前記所定の値より小さな第1の値で一定となるように、前記角速度および前記生成周期の少なくとも一方を調整することを特徴とする請求項1に記載の光走査型内視鏡プロセッサ。
- 前記制御部は、前記駆動部に前記角速度を一定に維持させ、前記生成周期を調整することを特徴とする請求項1または請求項2に記載の光走査型内視鏡プロセッサ。
- 前記制御部は、前記受光部に前記生成周期を一定に維持させ、前記角速度を調整することを特徴とする請求項1または請求項2に記載の光走査型内視鏡プロセッサ。
- 入射する光を第1の入射端から第1の出射端に伝達し、伝達した光を前記第1の出射端からビーム状に出射する供給光伝達路と、
前記第1の出射端を渦巻き型変位経路に沿って変位させる駆動部と、
前記供給光伝達路から出射される光に対する観察対象領域における反射光または発する光を第2の入射端から第2の出射端に伝達する反射光伝達路と、
前記反射光伝達路により伝達された光を受光して、受光量に応じた画素信号を生成する受光部と、
前記駆動部による前記渦巻き型変位経路上を変位するときの角速度と、前記渦巻き型変位経路上における前記第1の出射端の位置と前記渦巻き型変位経路の中心との距離である第1の距離と、前記受光部による前記画素信号の生成周期との積が所定の範囲内に入るように、前記角速度および前記生成周期の少なくとも一方を調整する制御部とを備える
ことを特徴とする光走査型内視鏡装置。
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| JP2008324225A JP5424634B2 (ja) | 2008-12-19 | 2008-12-19 | 光走査型内視鏡プロセッサおよび光走査型内視鏡装置 |
| US12/640,080 US8466956B2 (en) | 2008-12-19 | 2009-12-17 | Scanning endoscope processor and scanning endoscope apparatus |
| DE102009059834A DE102009059834A1 (de) | 2008-12-19 | 2009-12-21 | Abtastendoskop-Prozessor mit Abtastendoskop |
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| JP2008324225A JP5424634B2 (ja) | 2008-12-19 | 2008-12-19 | 光走査型内視鏡プロセッサおよび光走査型内視鏡装置 |
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| JP5424634B2 JP5424634B2 (ja) | 2014-02-26 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012132754A1 (ja) * | 2011-03-31 | 2012-10-04 | オリンパスメディカルシステムズ株式会社 | 走査型内視鏡装置 |
| JP2013505763A (ja) * | 2009-09-24 | 2013-02-21 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 増加した走査速度を持つ光プローブシステム |
| WO2013111604A1 (ja) | 2012-01-26 | 2013-08-01 | オリンパス株式会社 | 光走査型観察装置 |
| JPWO2013089053A1 (ja) * | 2011-12-12 | 2015-04-27 | Hoya株式会社 | 走査型内視鏡システム |
| WO2017037782A1 (ja) * | 2015-08-28 | 2017-03-09 | オリンパス株式会社 | 走査型観察装置 |
| US9872602B2 (en) | 2014-05-28 | 2018-01-23 | Olympus Corporation | Optical scanning type observation apparatus and method for operating optical scanning type observation apparatus |
| JP2019049549A (ja) * | 2015-08-26 | 2019-03-28 | 財團法人工業技術研究院Industrial Technology Research Institute | 表面測定装置及びその方法 |
| JP2019109383A (ja) * | 2017-12-19 | 2019-07-04 | 株式会社日立製作所 | 光走査装置、カテーテル装置、及び距離計測装置 |
| JP2020144148A (ja) * | 2015-08-26 | 2020-09-10 | 財團法人工業技術研究院Industrial Technology Research Institute | 表面測定装置及びその方法 |
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| JP5883683B2 (ja) | 2012-03-02 | 2016-03-15 | Hoya株式会社 | 光走査型内視鏡 |
| JP6327851B2 (ja) * | 2013-12-26 | 2018-05-23 | オリンパス株式会社 | 光走査型画像形成装置 |
| JP6289126B2 (ja) * | 2014-01-29 | 2018-03-07 | オリンパス株式会社 | 走査型内視鏡装置とその制御方法 |
| WO2016116968A1 (ja) * | 2015-01-23 | 2016-07-28 | オリンパス株式会社 | 光走査装置 |
| JP2018022781A (ja) * | 2016-08-03 | 2018-02-08 | パナソニックIpマネジメント株式会社 | 光学機器 |
| US10754144B2 (en) * | 2016-09-22 | 2020-08-25 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Dithered fiber-bundle imager and high-resolution imaging method |
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| US12385733B2 (en) | 2020-01-30 | 2025-08-12 | Soham Inc. | Synchronizing an optical coherence tomography system |
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| WO2012132754A1 (ja) * | 2011-03-31 | 2012-10-04 | オリンパスメディカルシステムズ株式会社 | 走査型内視鏡装置 |
| JPWO2013089053A1 (ja) * | 2011-12-12 | 2015-04-27 | Hoya株式会社 | 走査型内視鏡システム |
| WO2013111604A1 (ja) | 2012-01-26 | 2013-08-01 | オリンパス株式会社 | 光走査型観察装置 |
| US9651774B2 (en) | 2012-01-26 | 2017-05-16 | Olympus Corporation | Optical scanning observation apparatus having variable sampling time, and method and computer readable storage device |
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| JP2019049549A (ja) * | 2015-08-26 | 2019-03-28 | 財團法人工業技術研究院Industrial Technology Research Institute | 表面測定装置及びその方法 |
| WO2017037782A1 (ja) * | 2015-08-28 | 2017-03-09 | オリンパス株式会社 | 走査型観察装置 |
| JPWO2017037782A1 (ja) * | 2015-08-28 | 2018-06-14 | オリンパス株式会社 | 走査型観察装置 |
| JP2019109383A (ja) * | 2017-12-19 | 2019-07-04 | 株式会社日立製作所 | 光走査装置、カテーテル装置、及び距離計測装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US8466956B2 (en) | 2013-06-18 |
| DE102009059834A1 (de) | 2010-07-01 |
| US20100157036A1 (en) | 2010-06-24 |
| JP5424634B2 (ja) | 2014-02-26 |
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