JP2023107829A - 自動分析装置 - Google Patents
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Abstract
Description
図1は、本発明の実施形態1に係る自動分析装置10の全体構成を示す模式図である。自動分析装置10は、試料に対して光を照射することにより測定する装置である。自動分析装置10は、サンプルディスク103、試薬ディスク106、反応ディスク109、分注機構、制御回路201、光量測定回路202、データ処理部203、入力部204、出力部205を備える。
本実施形態1に係る自動分析装置10は、光量が十分でない波長帯のLED光(第1LED501)を分析部に対して直進入射させて光量を確保するとともに、光量が十分な波長帯のLED光(第2LED502)は一定の光量減衰を許容できるので、2段階反射によって第1LED501の出射光と合波させる。これにより、広い波長範囲を確保するとともに光量を確保できるので、広範囲の波長範囲にわたって高い分析性能を維持することができる。
図6Aは、本発明の実施形態2に係る自動分析装置10が備える光源部301の構成例である。本実施形態2においては、第2LED502の出射光を拡散させることにより、分光器302の受光器の受光面上において、第2LED502の出射光の光量分布を均一化することを図る。その他構成は実施形態1と同様である。
本実施形態2に係る自動分析装置10は、第2LED502の出射光を拡散させることにより、受光面302A上において範囲502Bが範囲501Aを包含するようにする。これにより受光面302A上において各LEDの光量の面内分布を均一にすることができる。
自動分析装置10の吸光分析の分析性能を安定的に得るためには、光源部301の光量が常に一定であることが好適である。光量を一定に保つ手段として、LED実装基板503の温度制御と、LEDの駆動電流制御を用いることができる。そこで本発明の実施形態3では、自動分析装置10の光量を安定化させるための制御手順について説明する。自動分析装置10の構成は実施形態1~2と同様である。
本発明は、上記した実施形態に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施の例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施形態の構成の一部を他の実施形態の構成に置き換えることが可能であり、また、ある実施形態の構成に他の実施形態の構成を加えることも可能である。また、各実施形態の構成の一部について、他の構成の追加・削除・置換をすることが可能である。
102:サンプルカップ
103:サンプルディスク
104:試薬
105:試薬ボトル
106:試薬ディスク
107:反応溶液
108:反応セル
109:反応ディスク
110:サンプル分注機構
111:試薬分注機構
112:攪拌部
113:吸光度測定部
114:洗浄部
115:恒温流体
201:制御回路
202:光量測定回路
203:データ処理部
2031:情報記録部
2032:解析部
204:入力部
205:出力部
301:光源部
302:分光器
3021:回折格子
3022:検出器アレイ
401:光軸
402:光源側スリット
403:集光レンズ
404:分光器側スリット
501:第1LED
502:第2LED
503:LED実装基板
504:温度調整部
505:温度センサ
506:ダイクロイックフィルタ
507:反射板
508:拡散板
Claims (7)
- 試料を測定する自動分析装置であって、
前記試料を収容した反応容器に対して光を照射する光源、
前記光源の温度を調整する温度調整機構、
を備え、
前記光源は、第1LEDと第2LEDを有し、
前記温度調整機構は、前記第1LEDと前記第2LEDそれぞれに対して接触した同一の部材によって構成されており、
前記第2LEDから用いる光の波長帯の光量は、前記波長帯における前記第1LEDの光量よりも大きく、
前記光源はさらに、
前記第1LEDが出射する第1光のうち少なくとも一部を通過させる第1光学素子、
前記第2LEDが出射する第2光を反射する第2光学素子、
を備え、
前記第1光学素子は、前記第2光のうち少なくとも一部を反射するように構成されており、
前記第1光学素子と前記第2光学素子は、前記第1光学素子を通過した前記第1光と前記第1光学素子において反射した前記第2光が同じ光軸上で合波して合波光となるように配置されていることを特徴とする自動分析装置。 - 前記自動分析装置はさらに、前記第2光を拡散させる拡散部材を備えることを特徴とする請求項1記載の自動分析装置。
- 前記拡散部材は、前記第2LEDと前記第2光学素子との間に配置され、前記第2光を拡散させる拡散板によって構成されていることを特徴とする請求項2記載の自動分析装置。
- 前記拡散部材は、前記第2光を拡散するように前記第2光学素子の反射面を加工することによって、前記第2光学素子の反射面上に構成されている
ことを特徴とする請求項2記載の自動分析装置。 - 前記第1光は、前記合波光を受光する受光器の受光面上において、第1拡散範囲内に拡散し、
前記第2光は、前記受光面上において、第2拡散範囲内に拡散し、
前記拡散部材は、前記第1拡散範囲を前記第2拡散範囲が包含するように、前記第2光を拡散させる
ことを特徴とする請求項2から4いずれか1項記載の自動分析装置。 - 前記波長帯は、中心波長が350nm以下の紫外光であることを特徴とする請求項1記載の自動分析装置。
- 前記第1光学素子は、ダイクロイックフィルタであることを特徴とする請求項1または6記載の自動分析装置。
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DE102019103035A1 (de) * | 2019-02-07 | 2020-08-13 | Analytik Jena Ag | Atomabsorptionsspektrometer |
JP7217668B2 (ja) * | 2019-05-27 | 2023-02-03 | 株式会社日立ハイテク | 光源および生化学分析装置 |
US20240293885A1 (en) * | 2019-10-17 | 2024-09-05 | Apex Brands, Inc. | Light Ring for a Soldering Iron |
WO2022190471A1 (ja) * | 2021-03-08 | 2022-09-15 | 株式会社日立ハイテク | 光源及び自動分析装置 |
JP2022185858A (ja) * | 2021-06-03 | 2022-12-15 | 株式会社日立ハイテク | Led光源装置 |
US20220404270A1 (en) * | 2021-06-16 | 2022-12-22 | Ams International Ag | Determining the authenticity of an object |
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JP2023179070A (ja) * | 2022-06-07 | 2023-12-19 | 株式会社日立ハイテク | 分析装置 |
JP2024046884A (ja) * | 2022-09-26 | 2024-04-05 | 株式会社日立ハイテク | 分析装置 |
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EP4400829A1 (en) * | 2023-01-16 | 2024-07-17 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Sample analyzer and method for controlling sample analyzer |
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US20050279949A1 (en) | 1999-05-17 | 2005-12-22 | Applera Corporation | Temperature control for light-emitting diode stabilization |
KR100647317B1 (ko) | 2005-02-03 | 2006-11-23 | 삼성전자주식회사 | 다채널 형광 측정용 광학계 및 이를 채용한 다채널 형광시료 분석 장치 |
DE102005054184B4 (de) * | 2005-11-14 | 2020-10-29 | Carl Zeiss Microscopy Gmbh | Multispektrale Beleuchtungsvorrichtung und Messverfahren |
JP2008002849A (ja) * | 2006-06-20 | 2008-01-10 | Olympus Corp | 分析装置および容器 |
JP4829716B2 (ja) * | 2006-08-18 | 2011-12-07 | シスメックス株式会社 | 血液凝固分析装置 |
JP5260903B2 (ja) * | 2007-07-06 | 2013-08-14 | 株式会社東芝 | 自動分析装置 |
JP2009168478A (ja) | 2008-01-11 | 2009-07-30 | Hitachi High-Technologies Corp | 光度計 |
US8967811B2 (en) * | 2012-01-20 | 2015-03-03 | Lumencor, Inc. | Solid state continuous white light source |
US9239133B2 (en) * | 2012-05-24 | 2016-01-19 | Excelitas Canada, Inc. | High brightness solid state illumination system for fluorescence imaging and analysis |
JP6294186B2 (ja) * | 2014-08-12 | 2018-03-14 | 株式会社日立ハイテクノロジーズ | 自動分析装置 |
CN204925459U (zh) | 2015-07-24 | 2015-12-30 | 福州百讯光电有限公司 | 一种多波长单纤双向光收发模块 |
JP6637407B2 (ja) * | 2016-12-27 | 2020-01-29 | 株式会社日立ハイテクノロジーズ | 自動分析装置 |
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