JP2013526702A - 光熱放射測定およびルミネセンス測定用の光学系組込型ハンドピース - Google Patents
光熱放射測定およびルミネセンス測定用の光学系組込型ハンドピース Download PDFInfo
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Abstract
【選択図】図4
Description
本出願は、2010年5月13日出願の米国仮特許出願第61/334,436号「Handpiece with Integrated Optical System for Photothermal Radiometry and Luminescence Measurements」の優先権を主張し、その内容全体を本願明細書に援用する。
−総合値の45%で重みを付けられたPTR振幅
−総合値の15%で重みを付けられたPTR位相
−総合値の10%で重みを付けられたLUM位相
−総合値の30%で重みを付けられたLUM振幅
(PTR振幅×PTR位相)/(LUM振幅×LUM位相)
で組み合わせて、単一の読み取り値を生成してもよい。
LUM振幅×LUM位相×PTR振幅×PTR位相。
100×{(PTR−A−std/PTR−A)2+(PTR−P−std/PTR−P)2+(LUM−A−std/LUM−A)2+(LUM−P−std/LUM−P)2}1/2
Claims (36)
- 対象からの光熱放射を検出するための装置において、
細長いハウジングと;
前記ハウジング内でレーザビームを生成するレーザと;
前記ハウジングの遠位部分にあるアパーチャを通って、前記対象の表面上に前記レーザビームを集束し、かつ前記レーザビームに応答して前記対象内で生成した光熱放射を集光するように位置決めされたフォーカシング素子と;
前記レーザビームから前記光熱放射を空間的に分離するように前記ハウジング内に位置決めされた二色性ビームスプリッタと;
前記光熱放射を検出するために前記ハウジング内に設けられた赤外線検出器と
を含む装置。 - 請求項1に記載の装置において、前記ハウジング内の前記レーザビームの伝播軸が、前記レーザビームのビーム経路の一部分にわたって前記ハウジング内の前記光熱放射の伝播軸と実質的に同一線上にあることを特徴とする、装置。
- 請求項1または2に記載の装置において、前記レーザビームが、前記対象内でルミネセンス放射を生成するのに好適な波長を含み、および前記フォーカシング素子が、前記光熱放射に加えて前記ルミネセンス放射を集光するように構成され、前記装置が:
前記ハウジング内に設けられた光サンプリング素子であって、サンプリングされたルミネセンス放射を再指向させるように位置決めされている光サンプリング素子と;
前記サンプリングされたルミネセンス放射を透過させ、かつ散乱レーザ出力を除去するように位置決めされた光学フィルタと;
前記サンプリングされたルミネセンス放射を検出するように位置決めされた光検出器と
をさらに含むことを特徴とする、装置。 - 請求項3に記載の装置において、前記光サンプリング素子がピックオフプリズムであることを特徴とする、装置。
- 請求項1乃至4の何れか1項に記載の装置において、前記二色性ビームスプリッタが、前記レーザビームを反射しかつ前記光熱放射を透過させるように構成されていることを特徴とする、装置。
- 請求項5に記載の装置において、前記二色性ビームスプリッタが、前記対象内で生成されかつ前記フォーカシング素子によって集光されたルミネセンス放射を反射するようにさらに構成されていることを特徴とする、装置。
- 請求項1乃至4の何れか1項に記載の装置において、前記二色性ビームスプリッタが、前記レーザビームを透過させかつ前記光熱放射を反射するように構成されていることを特徴とする、装置。
- 請求項7に記載の装置において、前記二色性ビームスプリッタが、前記対象内で生成されかつ前記フォーカシング素子によって集光されたルミネセンス放射を透過させるようにさらに構成されていることを特徴とする、装置。
- 請求項1乃至8の何れか1項に記載の装置において、前記光熱放射が前記赤外線検出器の前に光吸収素子に入射するように、光吸収素子をさらに含み、および前記光吸収素子が、前記光熱放射を透過させかつ残留レーザ出力を吸収するように構成されていることを特徴とする、装置。
- 請求項9に記載の装置において、前記光吸収素子が、前記対象内で生成されかつ前記フォーカシング素子によって集光された残留ルミネセンス放射を吸収するようにさらに構成されていることを特徴とする、装置。
- 請求項9に記載の装置において、前記光吸収素子がロングパスフィルタを含むことを特徴とする、装置。
- 請求項11に記載の装置において、前記ロングパスフィルタがゲルマニウム窓を含むことを特徴とする、装置。
- 請求項9乃至12の何れか1項に記載の装置において、前記光吸収素子が、前記二色性ビームスプリッタと一体化されていることを特徴とする、装置。
- 請求項1乃至13の何れか1項に記載の装置において、前記ハウジングの前記遠位部分が、前記ハウジング内の前記レーザビームの伝播軸に実質的に直交する方向に沿って前記レーザビームを外部に再指向させる反射素子をさらに含むことを特徴とする、装置。
- 請求項1乃至14の何れか1項に記載の装置において、前記ハウジングの前記遠位部分が、前記対象を撮像するためのカメラを含むことを特徴とする、装置。
- 請求項15に記載の装置において、前記アパーチャが第1のアパーチャであり、および前記カメラが、前記第1のアパーチャに隣接する第2のアパーチャを通して前記対象を撮像するように構成されていることを特徴とする、装置。
- 請求項15に記載の装置において、前記カメラがピンホールタイプのカメラであることを特徴とする、装置。
- 請求項1乃至17の何れか1項に記載の装置において、前記赤外線検出器が(HgCdZn)Te検出器であることを特徴とする、装置。
- 請求項1乃至18の何れか1項に記載の装置において、前記レーザが、およそ660nmの波長を有する半導体レーザであることを特徴とする、装置。
- 請求項1乃至19の何れか1項に記載の装置において、前記ハウジングの前記遠位部分に取り外し可能に取り付けられた殻をさらに含み、前記殻は開口部を含み、および前記開口部は、前記殻が前記ハウジングに取り付けられたときに前記アパーチャと整列していることを特徴とする、装置。
- 請求項20に記載の装置において、前記殻が円錐状突起をさらに含み、および前記開口部が、前記円錐状突起の遠位端部に位置決めされていることを特徴とする、装置。
- 請求項21に記載の装置において、前記開口部と前記フォーカシング素子との間の距離が、前記フォーカシング素子の作動距離とほぼ等しいことを特徴とする、装置。
- 請求項20乃至22の何れか1項に記載の装置において、前記殻と前記ハウジングの前記遠位部分との間に設けられたカバー材をさらに含み、前記カバー材が、前記レーザビームおよび前記光熱放射に対して少なくとも部分的に透明であることを特徴とする、装置。
- 請求項1乃至23の何れか1項に記載の装置において、前記レーザ、前記二色性ビームスプリッタ、および前記赤外線検出器が、光学ベンチに組み立てられていることを特徴とする、装置。
- 請求項24に記載の装置において、前記光学ベンチが熱伝導性の材料を含むことを特徴とする、装置。
- 請求項24または25に記載の装置において、前記ハウジングが本体部分および先端部分を含み、前記先端部分が前記ハウジングの前記遠位部分を含み、および前記光学ベンチが、前記先端部分へ取り付けることにより前記本体部分内に位置決めされていることを特徴とする、装置。
- 請求項26に記載の装置において、前記光学ベンチおよび前記先端部分がそれぞれ熱伝導性の材料を含み、および前記先端部分が、前記光学ベンチに取り付けられた光学構成部品によって生成された熱にヒートシンクをもたらすことを特徴とする、装置。
- 請求項25または27に記載の装置において、前記熱伝導性の材料がアルミニウムを含むことを特徴とする、装置。
- 請求項1乃至28の何れか1項に記載の装置において、前記ハウジングの前記遠位部分に取り外し可能に取り付けられた校正装置をさらに含み、前記校正装置が校正基準材料を含み、前記校正基準材料が前記校正装置内に位置決めされて、前記レーザビームが、前記校正装置が前記ハウジングに取り付けられているときに前記校正基準材料に指向されるようにすることを特徴とする、装置。
- 請求項29に記載の装置において、前記校正装置が:
前記ハウジングの前記遠位部分の外面を収容する内部軸方向穴と;
前記軸方向穴に隣接した内部凹部であって、前記校正基準材料を支持する凹部と
を含むことを特徴とする、装置。 - 請求項29または30に記載の装置において、前記校正基準材料が、ハイドロキシアパタイトおよび黒体基準材料の一方を含むことを特徴とする、装置。
- 請求項1乃至31の何れか1項に記載の装置において、前記対象が歯であることを特徴とする、装置。
- システムにおいて、
請求項1乃至32の何れか1項に記載の装置と;
前記装置に接続された制御および処理ユニットと;
を含み、
前記制御および処理ユニットが、前記装置に電力を供給しかつ前記装置によって検出された信号を処理するように構成されていることを特徴とする、システム。 - 請求項33に記載のシステムにおいて、前記制御および処理ユニットが、前記レーザビームの変調に応答して前記光熱放射に関する信号を検出する位相感知検出システムを含むことを特徴とする、システム。
- 請求項34に記載のシステムにおいて、前記位相感知検出システムがロックイン型増幅器を含み、前記ロックイン型増幅器が、前記レーザビームの前記変調の位相に関する基準信号を備えることを特徴とする、システム。
- 請求項33乃至35の何れか1項に記載のシステムにおいて、前記制御および処理ユニットが、前記装置用の支持体と、前記装置が前記支持体に載置されているときに前記装置の遠位端部を保護するための凹部とをさらに含むことを特徴とする、システム。
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EP (1) | EP2569607B1 (ja) |
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BR (1) | BR112012029068B1 (ja) |
CA (1) | CA2799272A1 (ja) |
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LENA NICOLAIDES ; ANDREAS MANDELIS ; STEPHEN H. ABRAMS: "Novel dental dynamic depth profilometric imaging using simultaneous frequency-domain infrared photot", J. BIOMED. OPT., vol. 5, no. 1, JPN7015001040, January 2000 (2000-01-01), pages 31 - 39, ISSN: 0003055910 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2017213091A1 (ja) * | 2016-06-06 | 2017-12-14 | 学校法人日本大学 | う蝕診断装置 |
JPWO2017213091A1 (ja) * | 2016-06-06 | 2019-06-20 | 学校法人日本大学 | う蝕診断装置 |
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MX2012013151A (es) | 2013-04-11 |
EP2569607A4 (en) | 2016-12-21 |
IL222963A0 (en) | 2013-02-03 |
US9506808B2 (en) | 2016-11-29 |
EP2569607A2 (en) | 2013-03-20 |
EP2569607B1 (en) | 2020-04-22 |
CN102947682B (zh) | 2016-10-19 |
CN102947682A (zh) | 2013-02-27 |
CA2799272A1 (en) | 2011-11-17 |
JP6113655B2 (ja) | 2017-04-12 |
BR112012029068B1 (pt) | 2020-10-27 |
WO2011140664A3 (en) | 2012-01-05 |
BR112012029068A2 (pt) | 2016-08-09 |
WO2011140664A2 (en) | 2011-11-17 |
IL222963B (en) | 2018-07-31 |
US20130141558A1 (en) | 2013-06-06 |
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