JP2000146828A5 - - Google Patents
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- Publication number
- JP2000146828A5 JP2000146828A5 JP1998314613A JP31461398A JP2000146828A5 JP 2000146828 A5 JP2000146828 A5 JP 2000146828A5 JP 1998314613 A JP1998314613 A JP 1998314613A JP 31461398 A JP31461398 A JP 31461398A JP 2000146828 A5 JP2000146828 A5 JP 2000146828A5
- Authority
- JP
- Japan
- Prior art keywords
- types
- absorption
- absorption coefficient
- differences
- coefficient differences
- 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.)
- Granted
Links
- 238000010521 absorption reaction Methods 0.000 claims 5
- 239000006096 absorbing agent Substances 0.000 claims 1
- 230000000051 modifying Effects 0.000 description 2
- 206010036618 Premenstrual syndrome Diseases 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229920000314 poly p-methyl styrene Polymers 0.000 description 1
Description
また、位相変調計測法（ＰＭＳ法）の場合は前記と同様にして、
となる。ただし、
である。上記の（４．１０）式においても、群遅延の項が（ｋ'φ'１−φ'２）となっているから、位相変調計測において位相のゼロ点（φ＝０）を同定するときの誤差の問題が、従来の方式（φ１＋φ２）に対して大きく緩和される。特にμ'Ｓ≒１である生体などで、この効果が大きいことは同様である。
Claims (1)
- 前記吸収係数差算出手段は、ｎ＋１種類の前記所定波長におけるｎ種類の前記吸収係数差及びｎ種類の吸収成分の吸光係数差に基づいてｎ種類の前記吸収成分の濃度をさらに算出することを特徴とする請求項１６記載の散乱吸収体の内部情報の計測装置。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31461398A JP3950243B2 (ja) | 1998-11-05 | 1998-11-05 | 散乱吸収体の内部情報の計測方法及び装置 |
| EP99954411A EP1136811B1 (en) | 1998-11-05 | 1999-11-05 | Method and device for measuring internal information of scattering absorber |
| AU10782/00A AU1078200A (en) | 1998-11-05 | 1999-11-05 | Method and device for measuring internal information of scattering absorber |
| PCT/JP1999/006181 WO2000028302A1 (en) | 1998-11-05 | 1999-11-05 | Method and device for measuring internal information of scattering absorber |
| DE69925930T DE69925930T2 (de) | 1998-11-05 | 1999-11-05 | Verfahren und vorrichtung zur messung der inneren eigenschaften eines streuenden absorbers |
| US09/848,252 US6704110B2 (en) | 1998-11-05 | 2001-05-04 | Method and apparatus for measuring internal information of scattering medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31461398A JP3950243B2 (ja) | 1998-11-05 | 1998-11-05 | 散乱吸収体の内部情報の計測方法及び装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000146828A JP2000146828A (ja) | 2000-05-26 |
| JP2000146828A5 true JP2000146828A5 (ja) | 2005-10-27 |
| JP3950243B2 JP3950243B2 (ja) | 2007-07-25 |
Family
ID=18055417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31461398A Expired - Lifetime JP3950243B2 (ja) | 1998-11-05 | 1998-11-05 | 散乱吸収体の内部情報の計測方法及び装置 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6704110B2 (ja) |
| EP (1) | EP1136811B1 (ja) |
| JP (1) | JP3950243B2 (ja) |
| AU (1) | AU1078200A (ja) |
| DE (1) | DE69925930T2 (ja) |
| WO (1) | WO2000028302A1 (ja) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4499270B2 (ja) * | 2000-10-30 | 2010-07-07 | 浜松ホトニクス株式会社 | 散乱吸収体計測装置の校正方法、及びそれを用いた散乱吸収体計測装置 |
| WO2004008116A1 (en) * | 2002-07-15 | 2004-01-22 | Ariel Ltd. | Method and apparatus for imaging through scattering or obstructing media |
| JP2006032885A (ja) * | 2003-11-18 | 2006-02-02 | Sharp Corp | 光源装置およびそれを用いた光通信装置 |
| US7551950B2 (en) * | 2004-06-29 | 2009-06-23 | O2 Medtech, Inc,. | Optical apparatus and method of use for non-invasive tomographic scan of biological tissues |
| JP4662831B2 (ja) * | 2005-09-20 | 2011-03-30 | 富士フイルム株式会社 | 試料分析装置 |
| JP5420163B2 (ja) | 2007-10-24 | 2014-02-19 | 浜松ホトニクス株式会社 | 生体計測装置 |
| JP5087526B2 (ja) | 2008-11-25 | 2012-12-05 | 浜松ホトニクス株式会社 | 散乱吸収体計測方法及び散乱吸収体計測装置 |
| US8788001B2 (en) * | 2009-09-21 | 2014-07-22 | Covidien Lp | Time-division multiplexing in a multi-wavelength photon density wave system |
| US8391943B2 (en) * | 2010-03-31 | 2013-03-05 | Covidien Lp | Multi-wavelength photon density wave system using an optical switch |
| JP5932018B2 (ja) * | 2011-03-28 | 2016-06-08 | エイヴィエル・テスト・システムズ・インコーポレーテッド | 排気測定用のデコンボリューション法 |
| DE102012101858A1 (de) * | 2012-03-06 | 2013-09-12 | MBE- Komponenten GmbH | Vorrichtung und Verfahren zur Bestimmung der Partialdrucke von Prozessstoffen |
| JP6048950B2 (ja) * | 2012-06-15 | 2016-12-21 | セイコーエプソン株式会社 | 濃度測定装置 |
| JP6043276B2 (ja) * | 2013-12-27 | 2016-12-14 | 浜松ホトニクス株式会社 | 散乱吸収体測定装置及び散乱吸収体測定方法 |
| JP6551723B2 (ja) * | 2014-11-13 | 2019-07-31 | 株式会社リコー | 光学センサ、光学検査装置、及び光学特性検出方法 |
| WO2016208010A1 (ja) * | 2015-06-24 | 2016-12-29 | 浜松ホトニクス株式会社 | 散乱吸収体測定装置及び散乱吸収体測定方法 |
| US11654635B2 (en) | 2019-04-18 | 2023-05-23 | The Research Foundation For Suny | Enhanced non-destructive testing in directed energy material processing |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792051A (en) * | 1988-12-21 | 1998-08-11 | Non-Invasive Technology, Inc. | Optical probe for non-invasive monitoring of neural activity |
| DE4330460C2 (de) * | 1993-09-08 | 1996-05-23 | Siemens Ag | Vorrichtung zur Untersuchung von Gewebe mit Licht unterschiedlicher Wellenlängen |
| JP2780935B2 (ja) * | 1994-09-22 | 1998-07-30 | 浜松ホトニクス株式会社 | 散乱吸収体の吸収成分の濃度計測方法及び装置 |
| DE4445683A1 (de) * | 1994-12-21 | 1996-06-27 | Boehringer Mannheim Gmbh | Verfahren zur Untersuchung eines streuenden Mediums mit intensitätsmoduliertem Licht |
| JP3793255B2 (ja) | 1995-08-28 | 2006-07-05 | 浜松ホトニクス株式会社 | 光学測定方法及び光学測定装置 |
| JP3844815B2 (ja) * | 1996-08-30 | 2006-11-15 | 浜松ホトニクス株式会社 | 散乱体の吸収情報計測方法及び装置 |
| JP3660761B2 (ja) * | 1996-10-03 | 2005-06-15 | 技術研究組合医療福祉機器研究所 | 散乱体の吸収情報の計測方法及び装置 |
| GB9702018D0 (en) * | 1997-01-31 | 1997-03-19 | Univ London | Determination of the ratio of optical absorbtion coefficients at different wavelengths in a scattering medium |
| JP3887486B2 (ja) * | 1998-05-26 | 2007-02-28 | 浜松ホトニクス株式会社 | 散乱吸収体の内部特性分布の計測方法及び装置 |
-
1998
- 1998-11-05 JP JP31461398A patent/JP3950243B2/ja not_active Expired - Lifetime
-
1999
- 1999-11-05 EP EP99954411A patent/EP1136811B1/en not_active Expired - Lifetime
- 1999-11-05 AU AU10782/00A patent/AU1078200A/en not_active Abandoned
- 1999-11-05 DE DE69925930T patent/DE69925930T2/de not_active Expired - Lifetime
- 1999-11-05 WO PCT/JP1999/006181 patent/WO2000028302A1/ja active IP Right Grant
-
2001
- 2001-05-04 US US09/848,252 patent/US6704110B2/en not_active Expired - Lifetime
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