JP7338969B2 - 光センサー、それを用いた吸光度測定装置及び方法 - Google Patents
光センサー、それを用いた吸光度測定装置及び方法 Download PDFInfo
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Description
他の実施形態によれば、プロセッサ220は、第2光の光量に基づいて第1光の光量を補正し、該補正された第1光の光量を用いて対象体の吸光度を算出することができる。この際、プロセッサ220は、数式2(以下、光量補正式)及び数式3を利用できる。
Claims (21)
- 光を照射する発光素子と、
前記発光素子が装着され、前記発光素子が装着される領域にホールを含む基板と、
各発光素子の正面から照射されて、対象体から反射または散乱された第1光を受信する第1光検出器と、
各発光素子の背面から照射されて、前記発光素子に対応するホールを通過した、前記発光素子の直接光である第2光を受信する少なくとも1つの第2光検出器と、
を含み、
各ホールは各発光素子に対応する光センサー。 - 前記発光素子は、互いに異なる波長の光を照射する請求項1に記載の光センサー。
- 前記少なくとも1つの第2光検出器の個数は、前記発光素子の個数と同一であり、前記少なくとも1つの第2光検出器は、前記発光素子に対応する請求項1または2に記載の光センサー。
- 前記少なくとも1つの第2光検出器の個数は、前記発光素子の個数よりも少ない請求項1または2に記載の光センサー。
- 前記少なくとも1つの第2光検出器の個数は、1つである請求項1~4のいずれか一項に記載の光センサー。
- 前記基板と前記少なくとも1つの第2光検出器との間に配されて、前記ホールを通過した第2光を集光する集光部をさらに含む請求項1~5のいずれか一項に記載の光センサー。
- 前記集光部は、導波管、集光レンズ、反射ミラー、グレーティングのうち任意の1つまたは任意の組み合わせを含む請求項6に記載の光センサー。
- 発光素子により光が照射される対象体から反射または散乱された第1光及び、前記発光素子が装着された領域にホールが設けられた基板の前記ホールを通過した、前記発光素子の直接光である第2光を受信し、前記第1光の第1光量と前記第2光の第2光量とを測定する光センサーと、
前記第1光の第1光量及び前記第2光の第2光量に基づいて、前記対象体の吸光度を算出するプロセッサと、を含み、
各ホールは各発光素子に対応し、
前記光センサーは、
光を照射する前記発光素子と、
前記発光素子が装着され、前記発光素子が装着される領域にホールを含む基板と、
各発光素子の正面から照射されて、対象体から反射または散乱された第1光を受信して、前記第1光の第1光量を測定する第1光検出器と、
各発光素子の背面から照射されて、前記発光素子に対応するホールを通過した第2光を受信して、前記第2光の第2光量を測定する少なくとも1つの第2光検出器と、を含む、吸光度測定装置。 - 前記光センサーは、前記基板と前記少なくとも1つの第2光検出器との間に配されて、前記ホールを通過した第2光を集光する集光部をさらに含む請求項8に記載の吸光度測定装置。
- 前記集光部は、導波管、集光レンズ、反射ミラー、グレーティングのうち任意の1つまたは任意の組み合わせを含む請求項9に記載の吸光度測定装置。
- 前記プロセッサは、前記第2光の第2光量の変化に基づいて、前記第1光の第1光量を補正し、前記補正された第1光量を用いて、前記対象体の吸光度を算出する請求項8~10のいずれか一項に記載の吸光度測定装置。
- 前記プロセッサは、第2光の第2光量の変化と第1光の第1光量の関係とを定義した光量補正式を用いて、前記第1光の第1光量を補正する請求項11に記載の吸光度測定装置。
- 前記プロセッサは、前記発光素子の安定化の有無を判断し、前記発光素子が安定化されたと判断されれば、前記第1光の第1光量及び前記第2光の第2光量に基づいて、前記対象体の吸光度を算出する請求項8~10のいずれか一項に記載の吸光度測定装置。
- 前記プロセッサは、前記第2光の第2光量の変動係数、前記第2光に基づく前記発光素子の波長シフトの程度、設定された時間のうち任意の1つまたは任意の組み合わせに基づいて、前記発光素子の安定化の有無を判断する請求項13に記載の吸光度測定装置。
- 発光素子の正面から照射されて、対象体から反射または散乱された第1光を受信する段階と、
前記第1光の第1光量を測定する段階と、
前記発光素子の背面から照射されて、前記発光素子が装着された基板の、前記発光素子に対応するホールを通過した、前記発光素子の直接光である第2光を受信する段階と、
前記第2光の第2光量を測定する段階と、
前記第1光の第1光量及び前記第2光の第2光量に基づいて、前記対象体の吸光度を算出する段階と、を含み、
各ホールは各発光素子に対応する吸光度測定方法。 - 前記対象体の吸光度を算出する段階は、
前記第2光の第2光量の変化に基づいて、前記第1光の第1光量を補正する段階と、
前記補正された第1光量を用いて、前記対象体の吸光度を算出する段階と、
を含む請求項15に記載の吸光度測定方法。 - 前記第1光の第1光量を補正する段階は、
第2光の第2光量の変化と第1光の第1光量の関係とを定義した光量補正式を用いて、前記第1光の第1光量を補正する請求項16に記載の吸光度測定方法。 - 前記発光素子の安定化の有無を判断する段階をさらに含む請求項15~17のいずれか一項に記載の吸光度測定方法。
- 前記発光素子の安定化の有無を判断する段階は、
前記第2光の第2光量の変動係数、前記発光素子の前記第2光に基づく波長シフトの程度、設定された時間のうち任意の1つまたは任意の組み合わせに基づいて、前記発光素子の安定化の有無を判断する請求項18に記載の吸光度測定方法。 - 前記対象体の吸光度を算出する段階は、
前記発光素子が安定化されたと判断されれば、第1光の第1光量及び第2光の第2光量に基づいて、前記対象体の吸光度を算出する請求項18または19に記載の吸光度測定方法。 - 第1面から第1光を照射し、前記第1面に対向する第2面から第2光を照射する発光素子と、
各発光素子の第2面がそれぞれ配されるホールを含む第1基板と、
各発光素子から照射されて、被検体から反射または散乱される前記第1光を受信する第1光検出器と、
各発光素子から照射されて、各発光素子に対応する各ホールを通過する、前記発光素子の直接光である前記第2光を受信する1つ以上の第2光検出器と、
前記1つ以上の第2光検出器が装着される第2基板と、
を含む光センサー。
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