JP4467933B2 - 屈折計 - Google Patents
屈折計 Download PDFInfo
- Publication number
- JP4467933B2 JP4467933B2 JP2003322773A JP2003322773A JP4467933B2 JP 4467933 B2 JP4467933 B2 JP 4467933B2 JP 2003322773 A JP2003322773 A JP 2003322773A JP 2003322773 A JP2003322773 A JP 2003322773A JP 4467933 B2 JP4467933 B2 JP 4467933B2
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- Japan
- Prior art keywords
- light
- wavelength
- filter
- photoelectric sensor
- prism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001514 detection method Methods 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 10
- 238000002834 transmittance Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Description
前記プリズム境界面と前記光電センサの間に配置されたフィルター手段を有し、
前記フィルター手段は、光源からの光の波長を含む所定の波長域の光を選択的に透過させる波長フィルターを含む。
光源からの光の波長より所定波長だけ長い波長から光電センサの検出波長の最大値までの波長域の光を選択的に遮断する第1のフィルターと、
光源からの光の波長より所定波長だけ短い波長から光電センサの検出波長の最小値までの波長域の光を選択的に遮断する第2のフィルターと、を含んでもよい。
により、重心位置Pc’を算定する。式(1)において、Xiは各受光素子の位置(アドレス)を表し、IiはXiにおける受光量(V)を表す。式1から理解されるように、重心位置Pc’は、光量分布曲線の一次微分曲線(或いは一次差分曲線)の重心位置である。
前記プリズム境界面と前記光電センサの間に配置されたフィルター手段(30)を有し、
前記フィルター手段は、光源からの光の波長(L)を含む所定の波長域の光を選択的に透過させる波長フィルター(32、34)を含む。
光源からの光の波長(L)より所定波長だけ長い波長から光電センサ(28)の検出波長の最大値までの波長域の光を選択的に遮断する第1のフィルター(32)と、
光源からの光の波長(L)より所定波長だけ短い波長から光電センサ(28)の検出波長の最小値までの波長域の光を選択的に遮断する第2のフィルター(34)と、を含む。
12 フレーム
14 サンプルステージ
15 試料滴下窓部
16 プリズム
18 プリズム境界面
20 プリズム入射面
22 プリズム出射面
24 光源
28 光電センサ
30 フィルター手段
32 第1波長フィルター
34 第2波長フィルター
36 偏光フィルター
38 減光フィルター
Claims (3)
- 試料(S)との界面をなす境界面(18)を有するプリズム(16)と、
前記プリズムの境界面(18)に単一波長(L)の光を入射させるLEDからなる光源(24)と、
前記プリズム境界面で反射された光を検出する光電センサ(28)と、
前記プリズム境界面と前記光電センサの間に配置されたフィルター手段(30)と、
を備え、
前記フィルター手段が、前記光源の波長(L)を含む所定の波長域の光を選択的に透過させる波長フィルター(32、34)と、直線偏光を選択的に通過させる偏光フィルター(36)と、を含み、
前記波長フィルターが、
光源からの光の波長(L)より所定波長だけ長い波長から光電センサ(28)の検出波長の最大値までの波長域の光を選択的に遮断する第1のフィルター(32)と、
光源からの光の波長(L)より所定波長だけ短い波長から光電センサ(28)の検出波長の最小値までの波長域の光を選択的に遮断する第2のフィルター(34)と、を含み、
前記フィルター手段(30)が、前記第1のフィルター(32)と前記第2のフィルター(34)の間に前記偏光フィルター(36)を層状に張り合わせることにより一体的に形成される、屈折計。 - 前記フィルター手段(30)が、第1の面において前記プリズム(16)に接着され、第2の面において前記光電センサ(28)に接着される請求項1に記載の屈折計。
- 前記フィルター手段(30)が、減光フィルター(38)を含む請求項1又は2に記載の屈折計。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003322773A JP4467933B2 (ja) | 2003-09-16 | 2003-09-16 | 屈折計 |
Applications Claiming Priority (1)
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JP2003322773A JP4467933B2 (ja) | 2003-09-16 | 2003-09-16 | 屈折計 |
Related Child Applications (1)
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---|---|---|---|
JP2009217639A Division JP4889772B2 (ja) | 2009-09-18 | 2009-09-18 | 屈折計 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005091063A JP2005091063A (ja) | 2005-04-07 |
JP4467933B2 true JP4467933B2 (ja) | 2010-05-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003322773A Expired - Lifetime JP4467933B2 (ja) | 2003-09-16 | 2003-09-16 | 屈折計 |
Country Status (1)
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JP (1) | JP4467933B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100981196B1 (ko) * | 2008-07-23 | 2010-09-10 | 한국오므론전장주식회사 | 프리즘 매개형 레인센서 |
KR100981215B1 (ko) | 2008-08-07 | 2010-09-10 | 한국오므론전장주식회사 | 레인센서 |
KR100981216B1 (ko) | 2008-08-20 | 2010-09-10 | 한국오므론전장주식회사 | 속도 감응형 레인센서 |
KR100957421B1 (ko) | 2008-08-27 | 2010-05-11 | 한국오므론전장주식회사 | 실내 감지 겸용 레인센서 |
JP5333179B2 (ja) * | 2009-11-30 | 2013-11-06 | 株式会社島津製作所 | 屈折計 |
JP6435532B2 (ja) * | 2014-06-02 | 2018-12-12 | 株式会社アタゴ | 旋光度及び屈折率の測定装置 |
-
2003
- 2003-09-16 JP JP2003322773A patent/JP4467933B2/ja not_active Expired - Lifetime
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