JP7179778B2 - 黄斑色素を測定するための反射率測定機器及びその方法 - Google Patents
黄斑色素を測定するための反射率測定機器及びその方法 Download PDFInfo
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Description
本出願は、2017年2月27日に出願された、「黄斑色素を測定するための反射率測定機器及びその方法」と題する、米国仮出願第62/464028号の優先権の利益を主張し、当該出願は、本明細書に全体として参照により組み込まれる。
100 上部筐体
102 照射システム
104 検出システム
106 分離システム
108 光源
110 複数のレンズ
110a 第1のレンズ
110b 第2のレンズ
110c 第3のレンズ
110d 第4のレンズ
112 複数のマスク
112a 網膜マスク
112b 瞳孔マスク
114 複数のレンズ
114a、114b、114c レンズ
116 光ファイバーケーブル
118 分光器
122 D字形ミラー
124 複数のミラー
124a、124b ミラー
126 ダイクロイック折り返しミラー
128 窓
202 照射ビーム
204 検出ビーム
208、216 並進システム
210a、210b 筒
212 フィルター
214 位置を制御するデバイス
220 目
222 角膜
224 瞳孔
226 レンズ
228 網膜
230 ビームダンプ
300 患者
302 アイピース
304 顎当て
306 調整部
308 調整部
310 ディスプレイ
312 ジョイスティック
314 基部
316 較正ターゲット
400 画像化システム
402 光源
404 ミラー
406 カメラ
500 較正ターゲット
502 反射ビーム
504 デバイス
506 ミラー
Claims (15)
- 照射ビームを放出するための光源であって、前記照射ビームが黄斑を照射し、前記照射ビームの一部が前記黄斑から反射されて検出ビームを形成し、前記検出ビームが前記黄斑内の黄斑色素を表す、光源と、
前記照射ビームを前記黄斑に向けて反射し、前記黄斑からの前記検出ビームを反射するための第1のミラーであって、前記照射ビーム及び前記検出ビームが、前記第1のミラーの第1の面によって反射される、第1のミラーと、を含み、
前記照射ビーム及び前記検出ビームが、前記黄斑と前記第1のミラーとの間で離隔された状態を維持する、ヒトの目の黄斑を照射するための反射率測定機器。 - 前記照射ビーム及び前記検出ビームが、互いにオフセットされて前記第1のミラーで反射する、請求項1に記載の反射率測定機器。
- 前記第1のミラーにおける、前記照射ビームの入射光線及び前記検出ビームの反射光線が平行である、請求項1に記載の反射率測定機器。
- 前記照射ビームを前記黄斑に向けて反射し、前記黄斑からの前記検出ビームを反射するための一連のミラーをさらに含み、
前記第1のミラーが、前記一連のミラー内に含まれる、請求項1に記載の反射率測定機器。 - 前記一連のミラーが、D字形ミラーを含み、前記D字形ミラーが、前記照射ビームが前記D字形ミラーを通過することができるように前記照射ビームの経路に対して配置され、前記検出ビームを反射するように前記検出ビームの経路に対して配置された、請求項4に記載の反射率測定機器。
- 前記検出ビームを測定するための分光器と、
前記一連のミラーと前記分光器との間の光ファイバーケーブルと、をさらに含み、
前記一連のミラーが、前記検出ビームを前記光ファイバーケーブル内に反射するように構成された、請求項4に記載の反射率測定機器。 - 前記照射ビーム及び前記検出ビームが、互いにオフセットされた前記一連のミラーの各ミラーで反射し、
前記一連のミラーが、無限焦点ミラーリレーである、請求項4に記載の反射率測定機器。 - 目をモデル化し、既知の反射の反射率標準を有する較正ターゲットをさらに含み、
前記一連のミラーが、前記ヒトの目を画像化するための、または前記反射率測定機器を較正するために前記ヒトの目の場所に配置された前記較正ターゲットを選択的に画像化するための可動ミラーを含む、請求項4に記載の反射率測定機器。 - 前記黄斑内の黄斑色素の量を決定するために、前記検出ビームを受け取り、測定するための検出システムと、
ヒトの目を前記照射ビームで照射する前に、前記ヒトの目のライブ画像を提供するための画像化システムと、をさらに含む、請求項1に記載の反射率測定機器。 - 前記画像化システム内の前記光源を収容する筐体であって、前記筐体が前記ヒトの目からの光を通過させることを可能にする窓を含む、筐体をさらに含み、
前記画像化システムが、前記ヒトの目からの光を受け取るのに応答して前記ライブ画像を生成するためのカメラを含む、請求項9に記載の反射率測定機器。 - 前記画像化システムが、前記ライブ画像内に表示されたレティクルに基づいて、前記反射率測定機器の位置を前記ヒトの目に関連付けるように構成された、請求項10に記載の反射率測定機器。
- 前記ヒトの目と前記無限焦点ミラーリレーとの間であって、前記照射ビームの経路及び前記検出ビームの経路内に、ダイクロイック折り返しミラーをさらに含む、請求項7に記載の反射率測定機器。
- 前記検出ビームを前記分光器に伝送するための第1の無限焦点レンズリレーであって、前記第1の無限焦点レンズリレーが、前記ヒトの目の屈折率誤差を調整するために前記検出ビームの経路に沿って並進するように構成された第1の無限焦点レンズを含む第1の無限焦点レンズリレーと、
前記照射ビームを前記ヒトの目に伝送するための第2の無限焦点レンズリレーであって、前記第2の無限焦点レンズリレーが、前記照射ビームを前記黄斑に集束するために、前記照射ビームの経路に沿って並進するように構成された第2の無限焦点レンズを含む、第2の無限焦点レンズリレーと、をさらに含む、請求項6に記載の反射率測定機器。 - 黄斑から反射する検出ビームを生成するように、照射源から黄斑へ、一連のミラーを介して照射ビームを向ける段階であって、前記照射ビームが、前記一連のミラーのうちの第1のミラーの第1の面によって前記黄斑に向けて反射される、段階と、
前記検出ビームを前記黄斑から分光器へ、前記一連のミラーを介して向ける段階であって、前記検出ビーム及び前記照射ビームが離隔された状態を維持するように、前記検出ビームが、前記照射ビームからオフセットされて前記一連のミラーのうちの前記第1のミラーの前記第1の面で反射する、段階と、
前記検出ビームを前記分光器で受け取る段階と、
黄斑色素の量を決定するために、前記分光器において前記検出ビームの特性を測定する段階と、を含む、ヒトの目の黄斑内の黄斑色素の量を決定する方法。 - 照射システム、検出システム及びビームダンプを含む筐体であって、前記照射システムが前記光源を含み、前記検出システムが、前記黄斑内の黄斑色素の量を決定するために、前記検出ビームを受け取り、測定するように構成され、前記ビームダンプが、前記反射率測定機器内の迷光を吸収するために、前記検出システムの光学入力と光学的に位置合わせされた、筐体と、
前記筐体に接続され、環境光が前記筐体に入るのを防ぐために、ヒトの目とインターフェースするように構成されたアイピースと、を含み、
前記ビームダンプ及び前記アイピースが、前記反射率測定機器が照明の点灯した環境内で前記黄斑の前記黄斑色素を測定することができるようにする、請求項1に記載の反射率測定機器。
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