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1. 发明申请

US20200158569A1 SPECTRAL DETECTOR 审中-公开
公开(公告)号：US20200158569A1
公开(公告)日：2020-05-21
申请号：US16604998
申请日：2017-04-21
申请人： SHIMADZU CORPORATION
发明人： Masato WATANABE , Hiroyuki TOGO
IPC分类号： G01J3/02
摘要： A spectral detector includes a light source, a sample cell in which a sample flows therein, an optical sensor, an optical system that guides light from the light source to the sample cell and guides light from the sample cell to the optical sensor, the optical system has a spectroscope for dispersing light and the spectroscope is arranged between the light source and the sample cell or between the sample cell and the optical sensor, and a housing integrally including a lamp house part for housing the light source and an optical system housing part for housing at least the sample cell and the optical system. Since the lamp house part and the optical system housing part are integrated to constitute the housing, heat is easily transmitted from the lamp house part to the optical system housing part, and the time until the entire detector reaches thermal equilibrium is shortened.

2. 发明申请

US20200158626A1 FLOW CELL AND DETECTOR EQUIPPED WITH THE FLOW CELL 审中-公开
公开(公告)号：US20200158626A1
公开(公告)日：2020-05-21
申请号：US16604999
申请日：2017-12-25
申请人： SHIMADZU CORPORATION
发明人： Masato WATANABE
IPC分类号： G01N21/05 , G01N30/74 , G01N21/27
摘要： A flow cell includes a cell into which a liquid to be measured is introduced and is arranged so that a measurement light to be used for measuring an optical characteristic of the liquid enters one side of the cell and exits from the other side of the cell, an inlet for leading the liquid to flow into the cell, and an outlet for leading the liquid in the cell to flow out from the cell. The inlet and the outlet are provided to form an interface between a liquid flowing into the cell through the inlet and a liquid with which the cell has been already filled at two places on an optical path of the measurement light passing through the cell.

3. 发明申请

US20160234904A1 OPTICAL ANALYZER 有权
标题翻译：光学分析仪
公开(公告)号：US20160234904A1
公开(公告)日：2016-08-11
申请号：US15015810
申请日：2016-02-04
申请人： SHIMADZU CORPORATION
发明人： Yusuke NAGAI , Keisuke OGAWA , Masato WATANABE , Kumiko JINGU , Masanori FUJIWARA , Tomoyuki YAMAZAKI
IPC分类号： H05B33/08 , G01N21/33
CPC分类号： H05B33/0851 , G01N21/33 , G01N2201/0621 , G01N2201/0638 , G01N2201/0692 , G01N2201/0695
摘要： Provided is an optical analyzer for performing a feedback control on the amount of light emitted from an LED as a light source, in which the configuration of an optical system is made simple and the degree of freedom in optical system arrangement is secured. An optical member 2 for focusing most of light while discharging part of the light as unfocused light is provided on an optical path from a light casting unit 1 to a sample cell 3. The optical member 2 can be achieved with a simple configuration, for example, two ball lenses spaced apart by a predetermined distance from each other. The light focused by the optical member 2 is cast as measurement light into the sample cell 3. Meanwhile, a second photodetector 5 is arranged at a position where the unfocused light reaches. The second photodetector 5 generates a detection signal in accordance with the amount of light that has entered the second photodetector 5 as monitored light, and a drive current to be supplied to an LED is controlled through a drive current controlling unit 6 and a current source 7 such that the amount of light is maintained at a fixed level.
摘要翻译：提供了一种用于对从光源发出的光量进行反馈控制的光学分析器，其中光学系统的结构简单且光学系统布置的自由度得到确保。在从光铸造单元1到样品池3的光路上设置有用于聚焦大部分光的光学构件2，同时以未聚焦的光排出部分光。光学构件2可以以简单的构造实现，例如，彼此隔开预定距离的两个球透镜。将由光学构件2聚焦的光作为测量光铸造到样品池3中。同时，第二光电检测器5布置在未聚焦的光到达的位置。第二光电检测器5根据作为监视光进入第二光电检测器5的光量产生检测信号，通过驱动电流控制单元6和电流源7控制提供给LED的驱动电流使得光量保持在固定的水平。

4. 发明申请

US20140060163A1 LIQUID SENDING PIPE FOR LIQUID CHROMATOGRAPH DETECTOR AND LIQUID CHROMATOGRAPH 有权
标题翻译：用于液相色谱检测器和液相色谱的液体发送管
公开(公告)号：US20140060163A1
公开(公告)日：2014-03-06
申请号：US14012227
申请日：2013-08-28
申请人： SHIMADZU CORPORATION
发明人： Masato WATANABE , Masahide GUNJI
IPC分类号： G01N30/30
CPC分类号： G01N30/30 , Y10T137/6416 , G01N2030/626
摘要： A heat insulating member 13 is provided on the outer circumference of a connection pipe 11. The heat insulating member 13 includes: a tube 12; and an air layer 15 between the connection pipe 11 and the tube 12. Accordingly, it is possible to always keep the temperature of a sample component at the time of detection by a detector constant and thus prevent an influence of the temperature on an output result of the detector, in a low flow rate analysis using a modularized column unit and a modularized detection unit.
摘要翻译：绝缘构件13设置在连接管11的外周上。隔热构件13包括：管12; 以及在连接管11和管12之间的空气层15.因此，可以通过检测器始终保持检测时的样品成分的温度恒定，从而防止温度对输出结果的影响的检测器，在使用模块化柱单元和模块化检测单元的低流量分析中。

5. 发明申请

US20200249090A1 CORRECTION METHOD OF DETECTION SIGNAL VALUE IN SPECTROPHOTOMETER AND SPECTROPHOTOMETER HAVING CORRECTION FUNCTION OF DETECTION SIGNAL VALUE 审中-公开
公开(公告)号：US20200249090A1
公开(公告)日：2020-08-06
申请号：US16266132
申请日：2019-02-04
申请人： Shimadzu Corporation
发明人： Masato WATANABE
IPC分类号： G01J3/28 , G01J3/18 , G01J3/02
摘要： The purpose is to reduce the influence on the measurement due to high order diffracted light without arranging a filter for removing high order diffracted light between a diffraction grating and a PDA. The correction method includes a correction coefficient determination step of determining a correction coefficient on a rate of a detection signal value derived from a second order diffracted light of light in the first wavelength range contained in a detection signal value of a long wavelength side photodiode for detecting light in the second wavelength range in the photodiode array, and a correction unit configured to obtain a detection signal value derived from light in the second wavelength range from a detection signal value of the long wavelength side photodiode by using the correction coefficient determined by the correction coefficient determination step.

6. 发明申请

US20220091077A1 ABSORBANCE DETECTOR FOR CHROMATOGRAPH AND REFERENCE POSITION DETECTION METHOD 有权
公开(公告)号：US20220091077A1
公开(公告)日：2022-03-24
申请号：US17422274
申请日：2019-01-17
申请人： SHIMADZU CORPORATION
发明人： Takuya YONEKURA , Masato WATANABE
IPC分类号： G01N30/74
摘要： An absorbance detector for a chromatograph includes a light source, a flow cell that receives light generated by the light source, a photodetector that detects light transmitted through the flow cell, a light shield member that shields a least part of the light generated from the light source to the flow cell, a motor that rotates the light shield member to change the light shield member between a light-shielding state where the light shield member shields at least part of the light generated from the light source to the flow cell and a non-light-shielding state where the light shield member does not shield the light generated from the light source to the flow cell, and a reference position detector that rotates the motor and also acquires a change in amount of light received by the photodetector to detect a reference position of the light shield member in a rotation direction of the light shield member based on the acquired change in the amount of the received light.

7. 发明申请

US20200158571A1 SPECTROPHOTOMETER 审中-公开
公开(公告)号：US20200158571A1
公开(公告)日：2020-05-21
申请号：US16604995
申请日：2017-04-20
申请人： SHIMADZU CORPORATION
发明人： Masato WATANABE , Masahide GUNJI
IPC分类号： G01J3/28 , G01J3/04 , G01J3/42 , G01J3/10
摘要： Provided is a spectrophotometer having a positional relationship between the spectroscope and a PDA that is set to have a distance between a reflection position of light reflected on a light receiving surface of a corresponding one of PDs constituting the PDA, being configured to receive at least light having a wavelength of from 200 nm to 300 nm, and an incident position at which light reflected at the reflection position is incident on a light receiving surface of the PDA after being re-reflected on the protective plate, the distance being equal to or less than a width dimension of any one of the PDs constituting the PDA.

8. 发明申请

US20200088699A1 LIQUID CHROMATOGRAPHY DETECTOR 审中-公开
公开(公告)号：US20200088699A1
公开(公告)日：2020-03-19
申请号：US16469744
申请日：2017-11-13
申请人： Shimadzu Corporation
发明人： Masato WATANABE
IPC分类号： G01N30/74
摘要： A detector includes a light source configured to emit measurement light, a flow cell incorporating a cell channel through which a sample solution flows inside, a photodetector configured to detect light from the flow cell, an optical system configured to guide light from the light source to the flow cell and guide light from the flow cell to the photodetector, and a flow cell accommodating part configured to cover the flow cell so as to spatially separate the flow cell from the optical system. Of the side surfaces of the flow cell accommodating part, the side surfaces facing the light incident surface and the light exit surface of the flow cell are formed from wall surfaces made of a light transmissive material, or sealed by a light transmissive plate material.

9. 发明申请

US20190187045A1 FLOW CELL 审中-公开
公开(公告)号：US20190187045A1
公开(公告)日：2019-06-20
申请号：US16318789
申请日：2016-08-25
申请人： Shimadzu Corporation
发明人： Yusuke NAGAI , Masato WATANABE
IPC分类号： G01N21/01
摘要： A flow cell includes a housing, a window member, and a pressing member. The housing includes a cell channel in which a sample flows through, has, on at least one end side of the cell channel, an opening communicating with the cell channel, and has a flat surface at an edge of the opening. The window member has a lens portion at a central portion and a peripheral edge portion whose one surface and the other surface are flat. In the window member, one surface of the peripheral edge portion is provided facing the flat surface of the housing so as to seal the opening.

10. 发明申请

US20160313248A1 OPTICAL ANALYZER 审中-公开
标题翻译：光学分析仪
公开(公告)号：US20160313248A1
公开(公告)日：2016-10-27
申请号：US15135626
申请日：2016-04-22
申请人： SHIMADZU CORPORATION
发明人： Yusuke NAGAI , Keisuke OGAWA , Masato WATANABE , Kumiko JINGU , Masanori FUJIWARA , Tomoyuki YAMAZAKI
IPC分类号： G01N21/64 , G01N21/25 , G01N21/31
CPC分类号： G01N21/645 , G01N21/255 , G01N2021/641 , G01N2201/06153
摘要： Light emitted from a light casting unit 1 including an LED as its light source is cast into a sample cell 2, and a photodetector 3 is placed at a position where the resultant passing light can be detected. The LED is driven to blink, and a data extracting section 71 extracts data obtained in a period in which the LED is turned on, as data (absorbance data) in which absorption of light by the sample solution is reflected. Moreover, in the case where a fluorescent component is contained in the sample solution, fluorescent light is emitted by the cast light serving as excitation light. Even after the excitation light ceases, the emission of the fluorescent light continues for a short time, and hence the data extracting section 71 extracts data obtained immediately after the LED is turned off, as data (fluorescence data) in which the fluorescent light is reflected. An absorbance computing section 72 calculates absorbance based on the absorbance data, and a fluorescence computing section 73 calculates fluorescence intensity based on the fluorescence data. Accordingly, it is possible to simultaneously perform an absorbance measurement and a fluorescence measurement on one sample while using one photodetector and thus simplifying the configuration of an optical system.
摘要翻译：从包括LED作为其光源的光铸造单元1发射的光被投射到样品池2中，并且将光电检测器3放置在可以检测所得到的通过光的位置。 LED被驱动闪烁，并且数据提取部71提取在LED被接通的时段中获得的数据作为反映样品溶液的光吸收的数据（吸光度数据）。此外，在样品溶液中含有荧光成分的情况下，作为激发光的投射光发出荧光。即使在激发光停止之后，荧光的发射持续很短的时间，因此数据提取部71提取在关闭LED之后立即获得的数据作为反射荧光的数据（荧光数据）。吸光度计算部72基于吸光度数据计算吸光度，荧光运算部73基于荧光数据计算荧光强度。因此，可以在使用一个光电检测器的同时对一个样品进行吸光度测量和荧光测量，从而简化了光学系统的结构。

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