JP6371856B2 - 光学分析装置、光学分析方法及び試料調製装置 - Google Patents
光学分析装置、光学分析方法及び試料調製装置 Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Description
・光学積分キャビティを備え、該キャビティは、少なくとも1つの光学拡散壁により形成され、かつ1個以上の試料要素から成る固形農産物試料を含むように構成されており、
・光学積分キャビティ内に光を放出する光源を備え、少なくとも1つの光学拡散壁は、放出光を散光に変換するために利用され、該散光の少なくとも一部又は全部は、試料により、スペクトル的にフィルタリングされた光に変換され、
・スペクトルセンサを備え、該スペクトルセンサがスペクトル的にフィルタリングされた光に露出されている間、試料が光学積分キャビティ内に閉じ込められる。
・光学積分キャビティ内に光を放出し、該光学積分キャビティにおける少なくとも1つの光学拡散壁により放出光を散光に変換するステップと、
・スペクトルセンサがスペクトル的にフィルタリングされた光に露出されている間、試料を光学積分キャビティ内に閉じ込め、固形農産物試料を利用することによって、散光の一部又は全部をスペクトル的にフィルタリングされた光に変換するステップと、
・試料の吸収スペクトルを生成することにより、スペクトル的にフィルタリングされた光を分析するステップと、
を含む。
D 最小距離
P1 第1平面
P2 第2平面
1 検出器アレイ
2 線形可変光学バンドパスフィルタ
3 円柱状レンズ
4 集束レンズ
10 光学分析装置
11 半球/リッド
12 ヒンジ
13 光源
14 バッフル
15 ディスプレイ
16 ボタン
17 試料ホルダ
18 窪み
19 保護ガラス
20 光学積分球
21 半球
22 ハンドル
23 スロット
24 下側半球
25 開口
26 スペクトルセンサ
27 試料ホルダ
29 保護ガラス
31 光学拡散壁
33 光源
34 バッフル
36 散光
38 フレーム
39 保護ガラス
40 試料調製装置
41 トウモロコシの試料要素
42 ピン
43 ハンドル
44 第1ブレード
45 第2ブレード
46 試料ホルダ
47 試料切片
48 光学的に薄い試料要素
49 ベースプレート
50 光学分析装置
51 下側ブレード
52 上側ブレード
53 ハンドル
54 窪み
58 試料スロット
60 光学分析装置
61 試料ホルダプレート
62 レセプタクル
70 光学積分キャビティ
71 サンプラー
72 農産物
73 圧縮ローラ
75 試料プレート
Claims (13)
- 光学分析装置(10,50,60)であって、
・光学積分キャビティ(20)を備え、前記キャビティ(20)は、少なくとも1つの光学拡散壁(31)により形成され、かつ別個の2個以上の試料要素(41,48)から成る固形農産物試料を含むよう構成されており、
・前記光学積分キャビティ(20)内に光を放出する、前方部分が前記光学積分キャビティ(20)内に配置された光源(13,33)を備え、前記少なくとも1つの光学拡散壁(31)は、放出光を散光に変換するために利用され、該散光の少なくとも一部又は全部は、試料により、スペクトル的にフィルタリングされた光に変換され、
・スペクトルセンサ(26)を備え、前記スペクトルセンサ(26)がスペクトル的にフィルタリングされた前記光に露出されている間、前記試料が前記光学積分キャビティ(20)内に閉じ込められ、
前記2個以上の試料要素(41,48)は前記光学積分キャビティ(20)内に収容された試料ホルダ(17,27,46)上に配分され、
前記試料ホルダ(17,27,46)は、前記放出光用に一部又は全部が透明である、光学分析装置。 - 請求項1に記載の光学分析装置(10,50,60)であって、前記試料要素(41,48)は前記光学積分キャビティ(20)内で互いに分離して静止している、光学分析装置。
- 請求項1又は2に記載の光学分析装置(10,50,60)であって、約2〜4 ミリメートル以下の厚さを一次元方向で有する光学的に薄い試料(48)を分析するように構成されている光学分析装置。
- 請求項1〜3の何れか一項に記載の光学分析装置(10,50,60)であって、前記試料の光学分析が行われている間、人手で保持され、特に人の手又は人の片手だけで保持されるように構成されている光学分析装置。
- 請求項1〜4の何れか一項に記載の光学分析装置(10,50,60)であって、前記試料要素(41,48)の一部又は全部は、平面に、一列に又は球内に配分されている、光学分析装置。
- 請求項1に記載の光学分析装置(10,50,60)であって、前記試料要素(41,48)は試料ホルダ(17,27,46)の窪み(18)によって配分され、前記光学分析装置(10,50,60)は光学積分キャビティ(20)内で前記試料ホルダ(17,27,46)を収容するように構成されている光学分析装置。
- 請求項6に記載の光学分析装置(10,50,60)であって、前記試料ホルダ(17,27,46)は、50〜110の窪みを有し、それぞれの窪みは、各試料要素(41,48)を配置又は保持するように構成されている、光学分析装置。
- 請求項6又は7に記載の光学分析装置(10,50,60)であって、前記試料ホルダ(17,27,46)の厚さは、光学的に薄い試料に特徴的な厚さに対応し、前記特徴的な厚さが特に約4 ミリメートル未満である光学分析装置。
- 請求項1〜8の何れか一項に記載の光学分析装置(10,50,60)であって、試料ホルダ(17,27,46)は、フレーム(38)により、形状適合により、又は力拘束により、前記光学積分キャビティ(20)内に配置可能であり及び/又は固定される、光学分析装置。
- 請求項8に記載の光学分析装置(10,50,60)であって、試料スロット(58)の入口開口部にブレード又はブレードの対(51,52)が配置されることにより、前記試料要素(41,38)は、前記試料が前記光学分析装置(10,50,56)内に差し込まれるときに部分的にスライスされ、これにより前記試料は光学的に薄い試料に加工される、光学分析装置。
- 請求項1〜10の何れか一項に記載の光学分析装置(10,50,60)であって、前記光源の波長スペクトルは、少なくとも一部が800〜1050 ナノメートルのスペクトル範囲にある光学分析装置。
- 請求項1〜11の何れか一項に記載の光学分析装置(10,50,60)であって、前記スペクトルセンサ(26)により提供された吸収スペクトルを分析することにより、前記試料が含有するタンパク質、水分、炭水化物及び/又は脂質の濃度に至る、光学分析装置。
- 請求項1〜12の何れか一項に記載の光学分析装置(10,50,60)を用いた光学分析方法であって、
・光学積分キャビティ(20)内に光を放出し、前記光学積分キャビティ(20)における少なくとも1つの光学拡散壁(31)により放出光を散光に変換するステップと、
・1個以上の試料要素(41,48)から成る固形農産物試料を利用することによって、前記散光の一部又は全部をスペクトル的にフィルタリングされた光に変換し、スペクトルセンサ(26)がスペクトル的にフィルタリングされた前記光に露出されている間、前記試料を前記光学積分キャビティ(20)内に閉じ込めるステップと、
・前記試料の吸収スペクトルを生成することにより、スペクトル的にフィルタリングされた前記光を分析するステップと、
を含む光学分析方法。
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