JP7401527B2 - 光学形状感知及びスペクトル組織感知のための統合型ファイバ - Google Patents
光学形状感知及びスペクトル組織感知のための統合型ファイバ Download PDFInfo
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Description
〇1545nm付近の吸収帯
〇可視光及び近赤外光、すなわち、400nm~1300nmでの十分な透明度
を有するべきである。
「Estimation of biological chromophores using diffuse optical spectroscopy: benefit of extending the UV-VIS wavelength range to include 1000 to 1600 nm」、R.Nachabe、B.H.W.Hendriks、M.V.D.Voort、A.E、及びH.J.C.M.Strenborg、Optics Express、第18巻、2010年、879-888頁。
「A diffusion theory model of spatially resolved,steady-state diffuse reflectance for non-invasive determination of tissue optical properties」、T.J.Farrell、M.S.Patterson、及びB.C.Wilson、Med.Phys.19(1992年)879-888頁。
「Estimation of lipid and water concentrations in scattering media with diffuse optical spectroscopy from 900 to 1600 nm」、R.Nachabe、B.H.W.Hendriks、A.E.Desjardins、M.van der Voort、M.B.van der Mark、及びH.J.C.M.Sterenborg、J.Biomed.Opt.第15巻、第3号、37015-10頁、2010年。
〇単一の点プローブを使用して組織をスキャンし、
〇各場所における点を取得し、
〇後処理を行って、各点測定値が画像内のピクセルである画像を形成することによる。
Claims (14)
- 外側ジャケットと、
前記外側ジャケットが共通クラッドをクラッドするように、マルチモードファイバとして使用される前記外側ジャケット内にある前記共通クラッドと、
前記共通クラッドが複数の単一モードファイバコアをクラッドするように前記共通クラッド内にある前記複数の単一モードファイバコアと、
前記複数の単一モードファイバコア、前記共通クラッド及び前記外側ジャケットの端部に適用され、光学形状感知に使用される波長の第1の光を実質的にキャプチャし、第2の光を実質的に透過する吸収材料と、
を含む、光学装置。 - 前記共通クラッド内の前記複数の単一モードファイバコアは、1つの中心コア、及び、前記1つの中心コアの周りに螺旋状に巻かれた少なくとも1つの外側コアを有する、少なくとも2つの単一モードファイバコアを含む、請求項1に記載の光学装置。
- 各単一モードファイバコアは、対応する光ファイバブラッグ格子を含む、請求項1に記載の光学装置。
- 前記共通クラッドの屈折率は、前記外側ジャケットの屈折率よりも高い、請求項1に記載の光学装置。
- 前記複数の単一モードファイバコアは、光学形状感知に使用される光を伝送し、
前記共通クラッドは、スペクトル組織感知に使用される光を伝送する、
請求項1に記載の光学装置。 - 前記複数の単一モードファイバコアに光を集束させる第1のレンズをさらに含む、請求項1に記載の光学装置。
- 前記第1のレンズは、GRINレンズを含む、請求項6に記載の光学装置。
- 前記複数の単一モードファイバコアに光を集束させる第2のレンズと、
前記第1のレンズと前記第2のレンズとの間に配置され、光学形状感知に使用される第1の光を、スペクトル組織感知に使用される第2の光から分離するビームスプリッタと、
をさらに含む、請求項6に記載の光学装置。 - 前記吸収材料は、400nm~1300nmの間で実質的に透過的であり、1535nm~1555nmで実質的に吸収性である、請求項1に記載の光学装置。
- 請求項1に記載の光学装置と、
命令を格納するメモリと、
前記命令を実行するプロセッサと、
を含む光学システムであって、
前記命令は、前記プロセッサによって実行されると、前記光学システムに、前記共通クラッドを通過する光に基づいてスペクトル組織感知を行うことを含むプロセスを実行させる、光学システム。 - 各単一モードファイバコアは、対応する光ファイバブラッグ格子を含み、
前記複数の単一モードファイバコアは、光学形状感知に使用される光を伝送し、
前記共通クラッドは、スペクトル組織感知に使用される光を伝送する、請求項10に記載の光学システム。 - 前記複数の単一モードファイバコアに光を集束させる第1のレンズをさらに含む、請求項10に記載の光学システム。
- 前記複数の単一モードファイバコアに光を集束させる第2のレンズと、
前記第1のレンズと前記第2のレンズとの間に配置され、光学形状感知に使用される第1の光を、スペクトル組織感知に使用される第2の光から分離するビームスプリッタと、
をさらに含む、請求項12に記載の光学システム。 - 前記吸収材料は、400nm~1300nmの間で実質的に透過的であり、1535nm~1555nmで実質的に吸収性である、請求項10に記載の光学システム。
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