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OPTICAL CHARACTERISTIC MEASUREMENT DEVICE AND OPTICAL CHARACTERISTIC MEASUREMENT METHOD

外国特許コード F180009386
整理番号 (S2016-0992-N0)
掲載日 2018年4月19日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP029638
国際公開番号 WO 2018034343
国際出願日 平成29年8月18日(2017.8.18)
国際公開日 平成30年2月22日(2018.2.22)
優先権データ
  • 特願2016-161493 (2016.8.19) JP
発明の名称 (英語) OPTICAL CHARACTERISTIC MEASUREMENT DEVICE AND OPTICAL CHARACTERISTIC MEASUREMENT METHOD
発明の概要(英語) The present invention is provided with: a light source 30 for irradiating a sample 20 with light; a standing wave formation unit 40 for forming, in the sample 20, acoustic standing waves perpendicular to the surface of the sample 20, with nodes being located a predetermined distance on the inside from the surface of the sample 20, on which the light from the light source 30 is incident; a detector 50 which is arranged on the same side as the light source 30 with respect to the surface of the sample 20, and which is for detecting light emitted from the surface of the sample 20; and an absorbance calculation unit 74 for finding the absorbance, which is an optical characteristic of the sample, from a detection result of the detector 50 for when the surface of the sample 20 is irradiated with the light in a state where acoustic standing waves are being formed in the sample 20 by the standing wave formation unit 40, and a detection result of the detector 50 for when the surface of the sample 20 is irradiated with the light in a state where acoustic standing waves are not being formed in the sample 20.
従来技術、競合技術の概要(英語) BACKGROUND ART
The type of the sample or the sample components included in one of techniques for the identification, the refractive index and absorbance, transmittance, optical characteristics such as the spectral characteristics (spectral) methods used. In these methods, the sample is irradiated with light from a light source wavelength and intensity of transmitted light when the detector is detected by measuring optical characteristics (Patent Document 1, 2).
The intensity of the transmitted light, light from the light source passes through the interior of the sample (optical path length) depends on the distance. That is, the light passing through the sample, the sample constituents or components within the absorption or scattering by the order, the longer the optical path length of the transmitted light intensity is decreased. Therefore, the intensity of transmitted light is a component of said sample to accurately reflect the concentration of the order, the optical path length of the transmitted light needs to be constant.
In the case of a liquid sample, the sample is formed from a material having light-transmitting property is sealed in the sample cell is irradiated with light from the optical source. Is a sample cell, for example of the liquid sample inside the rectangular tube-shaped member having a housing space of said container. The size of the accommodation space is constant, light from the light source from one of the opposing side walls of the sample cell is caused to be incident, and light is emitted from the other, its emitted light passes through the distance of the housing space, that is, the optical path length can be constant.
And the optical characteristics of the biological sample such as an organic compound is often used to measure the mid-infrared region of light by water absorption rate is very high, the optical path length more than 100μm almost all the light is absorbed by the liquid sample. Therefore, the mid-infrared region of light may be irradiated to the liquid sample in the case of measuring the optical properties of the liquid sample, the sample cell is made smaller the accommodation space is used. However, the housing space is small, the accommodation space upon placing the liquid sample to the case in which the bubbles enter the bubble is not easily lost. In addition, in the case where the high viscosity of the liquid sample filled in the accommodating space is difficult. Further, the smaller the accommodation space with the sample cell may be difficult.
On the other hand, the window member 2 are sandwiched between the ring-shaped spacer between, and fastened in the holder are configured by the formula of the sample cell is assembled. In the sample cell, the window member and the spacer 2 of the liquid sample in a space surrounded by the housing. In the sample cell, the spacer 1 is placed on the window member of a state in which the liquid sample placed inside of the spacer, the spacer 1 of another covering the window member, fastened to the holder. Therefore, in which a fluid sample such as, 2 of the window member and a space surrounded by the spacer easily, also, can be filled without containing air bubbles. In addition, the sample cell, the window member by disengaging the holder can be separated and the spacer, can be easy to clean the sample cell.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
  • 発明者(英語)
  • ISHIMARU, Ichiro
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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