ClassID:

167869

G01N21/4133 - CPC Classification

Classification description:

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light; Systems in which incident light is modified in accordance with the properties of the material investigated; Refractivity; Phase-affecting properties, e.g. optical path length Refractometers, e.g. differential

Sub-classes:
Recent Application in this class:
#1
20260153438
2026-06-04

METHOD AND SYSTEM FOR DETECTING HEMOLYSIS IN BLOOD USING REFRACTOMETRY

#2
20260146944
2026-05-28

THIN FILM CHARACTERISTIC DIAGNOSIS DEVICE AND THIN FILM CHARACTERISTIC DIAGNOSIS METHOD

#3
20260140041
2026-05-21

Optico-dynamic Light Tunnel

#4
20260086030
2026-03-26

METHOD AND DEVICE FOR DETERMINING THE REFRACTIVE INDEX OF A WEDGE-SHAPED TEST OBJECT

#5
20260049929
2026-02-19

SYSTEM AND METHOD FOR PHASE CHANGE MATERIAL ANALYSIS

#6
20260016406
2026-01-15

POLYMER MONITORING DEVICE AND METHOD USING TERAHERTZ WAVES

#7
20250327749
2025-10-23

Measuring Apparatus

#8
20250321186
2025-10-16

DEVICE AND METHOD FOR MEASURING REFRACTION COEFFICIENT AND EXTINCTION COEFFICIENT OF EUV MASK MATERIAL

#9
20250305963
2025-10-02

OPTICAL WAVEGUIDE SENSOR FOR DETECTING ARSENIC IONS AND METHOD OF FABRICATING THE SAME

#10
20250290243
2025-09-18

PRESSURE COMPENSATED VENTURI DISPENSING SYSTEM

#11
20250271358
2025-08-28

SYSTEM AND PHOTONIC CRYSTAL FIBER-BASED SURFACE PLASMON RESONANCE SENSOR TO DETECT REFRACTIVE INDEX OF ANALYTE

#12
20250258085
2025-08-14

Digital Microfluidic Systems, Cartridges, and Methods Including Integrated Refractive Index Sensing

#13
20250237610
2025-07-24

DEVICES, SYSTEMS AND METHODS FOR DETECTING MICROBIAL ACTIVITY

#14
20250208037
2025-06-26

OPTICAL PROCESS MONITORING DEVICE

#15
20250198921
2025-06-19

DEVICE FOR MEASURING THE REFRACTIVE INDEX OF A FLUID

#16
20250198920
2025-06-19

THERMO-OPTIC COEFFICIENT MEASUREMENT SYSTEMS

#17
20250179410
2025-06-05

SYSTEM AND METHOD FOR SIMULTANEOUSLY MEASURING REFRACTIVE INDEX AND TURBIDITY

#18
20250123475
2025-04-17

MICROSCOPE DEVICE AND DATA GENERATION METHOD

#19
20250116649
2025-04-10

DEVICE FOR MONITORING WATER-MISCIBLE COOLING LUBRICANT

#20
20240426750
2024-12-26

TOMOGRAPHIC REFRACTIVE INDEX PROFILE EVALUATION OF NON-SYMMETRICAL GLASS FIBER PREFORMS AND FIBERS THEMSELVES

#21
20240410825
2024-12-12

OBSERVATION DEVICE AND OBSERVATION METHOD

#22
20240369480
2024-11-07

METHOD AND DEVICE FOR DETERMINING THE REFRACTIVE INDEX OF A SURFACE REGION OF AN OBJECT

#23
20240319107
2024-09-26

Automated Photography and Inspection Station

#24
20240272157
2024-08-15

Method for Accumulating Microscopic Objects, and Method for Detecting Microscopic Objects Using Same

#25
20240241046
2024-07-18

REFRACTOMETER AND METHOD FOR MEASURING REFRACTIVE INDEX

#26
20240200255
2024-06-20

Pressure compensated Venturi dispensing system

#27
20240133805
2024-04-25

METHOD FOR DETERMINING THE PHASE AND/OR REFRACTIVE INDEX OF A REGION OF AN OBJECT, AND MICROSCOPE FOR DETERMINING THE PHASE AND/OR REFRACTIVE INDEX OF A REGION OF AN OBJECT

#28
20240085320
2024-03-14

OPTICAL ELEMENT AND OPTICAL SENSOR

#29
20240077418
2024-03-07

A METHOD OF AND A SYSTEM FOR DETERMINING A PARAMETER OF A FLUID

#30
20240068940
2024-02-29

A REFRACTOMETER

#31
20240045156
2024-02-08

Structure including grating coupler with optofluidic grating channels

#32
20240035964
2024-02-01

PROBE, A SYSTEM AND A METHOD FOR ANALYSIS OF A LIQUID IN A MIXTURE OF THE LIQUID AND SOLID SUBSTANCE

#33
20230313679
2023-10-05

Immersed lens downhole refractometer

#34
20230296509
2023-09-21

REFRACTOMETER, OPTICALLY TRANSMISSIVE STRUCTURE, AND METHOD OF MAKING AN OPTICALLY TRANSMISSIVE STRUCTURE

#35
20230129832
2023-04-27

Method And System For Determining Plasma Protein Content Of Whole Blood Using Refractometry

#36
20230112910
2023-04-13

MEASURING QUALITY ATTRIBUTES OF A VIRUS SAMPLE

#37
20230107854
2023-04-06

Method for determining the refractive-index profile of a cylindrical optical object

#38
20230079736
2023-03-16

WEARING DETECTION TECHNIQUES FOR WEARABLE DEVICES

#39
20230055423
2023-02-23

Raman sensor for supercritical fluids metrology

#40
20230009923
2023-01-12

Digital microfluidic systems, cartridges, and methods including integrated refractive index sensing

#41
20230003644
2023-01-05

PHOTONIC CHIP FOR MONITORING ACTIVITIES OF LIVING CELLS

#42
20220334058
2022-10-20

A SENSOR DEVICE AND METHOD FOR DETECTION OF A COMPONENT IN A FLUID

#43
20220307980
2022-09-29

METHOD AND DEVICE FOR CHARACTERIZING A MEDIUM USING REFRACTIVE INDEX

#44
20220291124
2022-09-15

NONINVASIVE VACCINE TESTER

#45
20220236181
2022-07-28

Measurement of properties of patterned photoresist

#46
20220214480
2022-07-07

AIRBORNE CORONAVIRUS DETECTOR AND ALERTING SYSTEM

#47
20220128464
2022-04-28

REFRACTIVE-INDEX SENSOR AND METHOD

#48
20220107269
2022-04-07

REFRACTOMETER WITH SINGLE USE PRISM AND REUSABLE OPTICAL SYSTEM

#49
20220095915
2022-03-31

Refraction measuring apparatus

#50
20220074854
2022-03-10

System for reconstructing and outputting a structure of an estimation sample using refractive index distribution of updated estimation sample

#51
20220034804
2022-02-03

REFRACTOMETER

#52
20220034803
2022-02-03

OPTICAL MULTIMETER

#53
20220026359
2022-01-27

Differential refractometer for gradient chromatography

#54
20220026358
2022-01-27

Observation apparatus, optical deflection unit, and image formation method

#55
20220022781
2022-01-27

PHOTODETECTION SYSTEM

#56
20210381967
2021-12-09

System and method to measure refractive index at specific wavelengths

#57
20210341721
2021-11-04

Method and microscope for determining the refractive index of an optical medium

#58
20210325300
2021-10-21

Test system and method for the mutual solubility of biomass-based blended fuel

#59
20210293723
2021-09-23

Optical inspection device

#60
20210262994
2021-08-26

Deflection-type refractometer with extended measurement range

#61
20210223170
2021-07-22

Refractive-index sensor and method

#62
20210215603
2021-07-15

PLANAR WAVEGUIDE DEVICE WITH NANO-SIZED FILTER

#63
20210190602
2021-06-24

Accurate temperature reading of fluid near interface

#64
20210156797
2021-05-27

Method for estimating sulfur component concentration in gasoline

#65
20210148815
2021-05-20

Optical detection method

#66
20210132635
2021-05-06

Pressure compensated Venturi dispensing system

#67
20210096070
2021-04-01

Flow cell assembly including a fluid swirl chamber and ultrasonic agitation device

#68
20210048387
2021-02-18

Data acquisition apparatus

#69
20210041394
2021-02-11

Fluidic apparatus for detection of a chemical substance, a biosensor and a method of fabricating the fluidic apparatus

#70
20200408680
2020-12-31

OPTICAL IMMERSION REFRACTOMETER PROBE

#71
20200393372
2020-12-17

Optical refractometer and real time monitoring analysis device having the same

#72
20200371025
2020-11-26

Method to measure the refractive index of a sample using surface plasmon polaritons

#73
20200362063
2020-11-19

Detection of polymer concentration in polymerization process using refractive index measurement

#74
20200355607
2020-11-12

Method for evaluating and controlling temperature influence on a homogeneity test for infrared optical materials

#75
20200341256
2020-10-29

Method and device for adjusting the focus or determining the refractive index of a sample medium, non-volatile computer-readable storage medium and microscope

#76
20200291777
2020-09-17

Immersed lens downhole refractometer

#77
20200278291
2020-09-03

Differential refractometer

#78
20200240913
2020-07-30

Method and apparatus for comparing optical properties of two liquids

#79
20200240912
2020-07-30

Planar waveguide device with nano-sized filter

#80
20200209227
2020-07-02

Free-solution response function interferometry

#81
20200209032
2020-07-02

Measurement of fluid parameters

#82
20200182786
2020-06-11

Optical immersion refractometer

#83
20200150034
2020-05-14

OPTICAL BIOSENSOR REFERENCING METHOD

#84
20200088702
2020-03-19

Method of calibrating an electronic nose

#85
20200061611
2020-02-27

MEMS optical liquid level sensor

#86
20200033260
2020-01-30

COAGULATION AND AGGREGATION REFRACTED LIGHT INDEXING DEVICE AND METHOD

#87
20190391074
2019-12-26

Light arrangement for an optical device for measurement of an index of refraction, and a refractometer

#88
20190360927
2019-11-28

Optical aberration detection systems

#89
20190317045
2019-10-17

Method and apparatus to characterize pressurized liquid sample

#90
20190310189
2019-10-10

APPARATUS AND METHOD FOR DETERMINING A REFRACTIVE INDEX

#91
20190271643
2019-09-05

Refractometer and Method for Determining Dynamic Properties of a Sample

#92
20190257750
2019-08-22

Total protein measurement using whole blood refractometry

#93
20190183332
2019-06-20

Thin film analysis apparatus and method for a curved surface

#94
20190170642
2019-06-06

ARRAY BASED SAMPLE CHARACTERIZATION

#95
20190162660
2019-05-30

Apparatus and method for measurement of multilayer structures

#96
20190121200
2019-04-25

FABRICATION METHOD OF DEFLECTING FILM

#97
20190120758
2019-04-25

Micro-lens imaging multi-well test plate

#98
20190107486
2019-04-11

Total protein measurement using whole blood refractometry

#99
20190094139
2019-03-28

Refractive index measuring device and refractive index measuring method

#100
20190094138
2019-03-28

Attachment for liquid sample measurement, refractive index measuring device and refractive index measuring method

#101
20190079543
2019-03-14

Pressure compensated Venturi dispensing system

#102
20190072485
2019-03-07

SYSTEM AND METHOD FOR MONITORING REAGENT CONCENTRATIONS

#103
20190056320
2019-02-21

Optical sensor for phase determination

#104
20190056213
2019-02-21

Measuring a cavity by means of interference spectroscopy

#105
20190041327
2019-02-07

V-block refractometer

#106
20190033301
2019-01-31

Free-solution response function interferometry

#107
20190025205
2019-01-24

Cuvette and method for measuring refractive index in a spectrophotometer

#108
20190025204
2019-01-24

Optical sensor, manufacturing method thereof, and fluid analysis method using the same

#109
20190025141
2019-01-24

Prism-coupling systems and methods for characterizing curved parts

#110
20180372625
2018-12-27

Optical test apparatus and optical test method

#111
20180356340
2018-12-13

Method and device for on-line detection of salinity of seater

#112
20180328838
2018-11-15

SENSOR, APPARATUS AND METHOD FOR DETERMINING A CONCENTRATION OF A SOLUTE IN A SOLUTION

#113
20180321101
2018-11-08

Photonic pressure sensor device and methods of use thereof

#114
20180313755
2018-11-01

Real-time multi-parameter monitor for metal-working systems

#115
20180306714
2018-10-25

Light microscope and method for determining a wavelength-dependent refractive index of a sample medium

#116
20180306658
2018-10-25

Surface refractive index measurement method and surface stress measurement method using the same

#117
20180299368
2018-10-18

Index of refraction sensor system with dual mode temperature control

#118
20180292315
2018-10-11

Growth-rate measuring apparatus and growth-rate detection method

#119
20180284017
2018-10-04

Optical sensor for detecting accumulation of a material

#120
20180275051
2018-09-27

Optical system for measuring pressure and phase changes in fluids

#121
20180266949
2018-09-20

Analysis method for interpreting Taylor dispersion data

#122
20180231461
2018-08-16

Systems and methods for refractive index detection

#123
20180202967
2018-07-19

Method and apparatus to characterize pressurized liquid sample

#124
20180180493
2018-06-28

Calorific value measuring device and calorific value measuring method

#125
20180172582
2018-06-21

Method and arrangement for determining concentration of at least two sample components in solution of at least three components

#126
20180171065
2018-06-21

Polyisocyanate composition, polyurethane resin, two-component curable polyurethane composition, coating material, and adhesive material

#127
20180113072
2018-04-26

Hydrocarbon sensing methods and apparatus

#128
20180106720
2018-04-19

Total protein measurement using whole blood refractometry

#129
20180100795
2018-04-12

Oblique incidence, prism-incident, silicon-based, immersion microchannel-based measurement device and measurement method

#130
20180070926
2018-03-15

Toilet bowl urine measurement instruments

#131
20180067288
2018-03-08

Device for measuring solution concentration

#132
20180058938
2018-03-01

Light measurement device

#133
20180052034
2018-02-22

Method and device for monitoring an oil level in a machine

#134
20180024052
2018-01-25

Immersion refractometer

#135
20180021791
2018-01-25

Fluid handling systems and method for ultracentrifuges

#136
20180017489
2018-01-18

Mechanical deformation sensor based on plasmonic nanoparticles

#137
20180011013
2018-01-11

Refractive index measuring device

#138
20170357084
2017-12-14

3D refractive index tomography and structured illumination microscopy system using wavefront shaper and method thereof

#139
20170356840
2017-12-14

Sealing arrangement and sealing method of a measuring device

#140
20170322192
2017-11-09

Method for measuring a degree of hydrogenation

#141
20170307521
2017-10-26

Device and method for determining a refractive index

#142
20170299509
2017-10-19

Method and apparatus for measuring refractive index in model-free manner

#143
20170269002
2017-09-21

Surface refractive index scanning system and method

#144
20170254748
2017-09-07

Method of determining refractive index, extinction coefficient, and surface properties of prism shaped material

#145
20170248560
2017-08-31

Refractive index-based detection for liquid chromatography using a microring resonator array

#146
20170241905
2017-08-24

Advanced Aircraft Fuel Tank And Water Detection Device

#147
20170234803
2017-08-17

Image capture device and electronic apparatus

#148
20170227458
2017-08-10

Optical biosensor referencing method

#149
20170227457
2017-08-10

Imaging system for fuel tank analysis

#150
20170227434
2017-08-10

Method of determining the stability reserve and solubility parameters of a process stream containing asphaltenes by joint use of turbidimetric method and refractive index

#151
20170227433
2017-08-10

Method of determining the stability reserve and solubility parameters of a process stream containing asphaltenes by joint use of turbidimetric method and refractive index

#152
20170215738
2017-08-03

Non-interferometric photoacoustic remote sensing (NI-PARS)

#153
20170212044
2017-07-27

Hydrocarbon sensing methods and apparatus

#154
20170212043
2017-07-27

Refractometer assemblies, methods of calibrating the same, and methods of determining unknown refractive indices using the same

#155
20170139204
2017-05-18

Refractive surface

#156
20170115214
2017-04-27

Noninvasive refractometer

#157
20170108427
2017-04-20

Disposable liquid chemical sensor system

#158
20170089832
2017-03-30

GAS DETECTION METHOD AND GAS DETECTION DEVICE

#159
20170074791
2017-03-16

Device for measuring polarization degree and refractive index

#160
20170059468
2017-03-02

Fast feature identification for holographic tracking and characterization of colloidal particles

#161
20170023470
2017-01-26

WETTING DETECTION WITHOUT MARKERS

#162
20170010213
2017-01-12

Measurement method using differential refractometer, differential refractometer using the measurement method, and liquid chromatograph

#163
20170010197
2017-01-12

METHOD AND DEVICE FOR DETERMINING CHARACTERISTIC PROPERTIES OF A TRANSPARENT PARTICLE

#164
20160377538
2016-12-29

Arrangement in connection with measuring window of refractometer, and refractometer

#165
20160377537
2016-12-29

FLUID DETECTOR AND COUPLER THEREOF

#166
20160375864
2016-12-29

Sensor device for recording moisture on a window and motor vehicle

#167
20160356707
2016-12-08

MEASUREMENT METHOD, MEASUREMENT APPARATUS, AND MANUFACTURING METHOD FOR OPTICAL ELEMENT

#168
20160320297
2016-11-03

Wavelength calibration for refractometers

#169
20160320252
2016-11-03

Temperature calibration for a measuring apparatus

#170
20160313242
2016-10-27

Refractive index measurement of liquids over a broad spectral range

#171
20160299066
2016-10-13

REFRACTIVE INDEX MEASURING METHOD, REFRACTIVE INDEX MEASURING APPARATUS, AND OPTICAL ELEMENT MANUFACTURING METHOD

#172
20160290897
2016-10-06

Method of measuring carbonation levels in open-container beverages

#173
20160252453
2016-09-01

Array based sample characterization

#174
20160243512
2016-08-25

System and method for compensating binary inlet buffers during inline buffer diluation

#175
20160242682
2016-08-25

NONINVASIVE ANALYZER APPARATUS AND METHOD OF USE THEREOF FOR SEPARATING DISTRIBUTED PROBING PHOTONS EMERGING FROM A SAMPLE

#176
20160238526
2016-08-18

System and method for determining properties of an oil material

#177
20160238525
2016-08-18

V-block refractometer

#178
20160238524
2016-08-18

System and method for providing active refraction feedback for devices with variable index of refraction

#179
20160187255
2016-06-30

Automatic observation apparatus for detecting mineral samples

#180
20160178437
2016-06-23

Electromagnetic radiation sensor for monitoring a medium

#181
20160163077
2016-06-09

Refractometer

#182
20160123873
2016-05-05

High precision measurement of refractive index profile of cylindrical glass bodies

#183
20160116403
2016-04-28

Hydrocarbon sensing methods and apparatus

#184
20160116323
2016-04-28

Multiparameter device for measuring by optical means the filling level of tanks and reservoirs of liquids and liquefied products, the index of refraction, and for image analysis, without moving parts

#185
20160018326
2016-01-21

Systems and methods for refractive index detection

#186
20150362429
2015-12-17

Method and arrangement in connection with separate sample taken from process liquid

#187
20150338343
2015-11-26

Silicon oil sensor and electric power terminal assembly

#188
20150330897
2015-11-19

IMAGE SENSOR AND METHOD FOR MEASURING REFRACTIVE INDEX

#189
20150308897
2015-10-29

Method of enhancing contrast in prism coupling measurements of stress

#190
20150300954
2015-10-22

Micro-prism test chip

#191
20150268162
2015-09-24

Multi-analyte optical sensor

#192
20150265193
2015-09-24

Portable analytical device and system

#193
20150077747
2015-03-19

Active chemical sensing using optical microcavity

#194
20150077736
2015-03-19

SENSOR FOR COMBINED TEMPERATURE, PRESSURE, AND REFRACTIVE INDEX DETECTION

#195
20150066393
2015-03-05

Prism-coupling systems and methods for characterizing curved parts

#196
20150062587
2015-03-05

Holographic microrefractometer for determining refractive index of a medium

#197
20150036125
2015-02-05

Sensor for monitoring a medium

#198
20150032417
2015-01-29

Systems and methods for identifying optical materials

#199
20150029496
2015-01-29

Method of deposition monitoring

#200
20150027203
2015-01-29

Controlling interdetector band broadening

#201
20150015872
2015-01-15

Particle suspensions used as low-contrast standards for inspection of liquids

#202
20150015871
2015-01-15

Microscope system and method for measuring refractive index of sample

#203
20150002843
2015-01-01

Image capture device and electronic apparatus

#204
20140327909
2014-11-06

METHOD FOR EXCITING A SUB-WAVELENGTH INCLUSION STRUCTURE

#205
20140319356
2014-10-30

Method and apparatus for determining a substance using THz radiation

#206
20140300889
2014-10-09

Apparatus and method for determining a fluid property downhole using a bulk reading refractometer

#207
20140268115
2014-09-18

Method for measuring refractive index, and refractometer

#208
20140192350
2014-07-10

Flow cells for differential refractive index detection

#209
20140185034
2014-07-03

Method to extend single wavelength ellipsometer to obtain spectra of refractive index

#210
20140106468
2014-04-17

PHOTONIC CRYSTAL SENSOR

#211
20140104601
2014-04-17

Imaging based refractometers

#212
20140060818
2014-03-06

Method of analysis of polymerizable monomeric species in a complex mixture

#213
20140029006
2014-01-30

Surface plasmon sensor and method of measuring refractive index

#214
20130278743
2013-10-24

Method and system for measuring porosity of particles

#215
20130242115
2013-09-19

Imaging based refractometer for hyperspectral refractive index detection

#216
20130208266
2013-08-15

Microrefractometer using defocusing imaging

#217
20130070230
2013-03-21

Apparatus and method for estimating bilirubin concentration using refractometry

#218
20130038918
2013-02-14

Display device

#219
20120200840
2012-08-09

Continuous index of refraction compensation method for measurements in a medium

#220
20120143517
2012-06-07

Apparatus and method for measuring the properties of petroleum fractions and pure hydrocarbon liquids by light refraction

#221
20120105850
2012-05-03

Cassette-based method and apparatus for measuring the presence and concentration of pharmaceutical substances in a medical fluid

#222
20110246091
2011-10-06

Universal refractometer apparatus and method

#223
20110203386
2011-08-25

Optical multiphase flowmeter

#224
20110168876
2011-07-14

OPTICAL MODULE AND SYSTEM FOR LIQUID SAMPLE

#225
20110122410
2011-05-26

Optical Reflectometry Setup

#226
20110084842
2011-04-14

Optical fluid tester

#227
20110080589
2011-04-07

Vertical plasmonic Mach-Zehnder interferometer

#228
20110025868
2011-02-03

Visual occultation to measure refractivity profile

#229
20100305872
2010-12-02

Apparatus and Method for Measuring the Properties of Petroleum Factions and Pure Hydrocarbon Liquids by Light Refraction

#230
20100281972
2010-11-11

Method and device for the optical measurement of state variables and the level in a container for liquefied gases, and device therefor

#231
20100241362
2010-09-23

Fuel property determining apparatus

#232
20100231896
2010-09-16

Quantitative phase-contrast and excitation-emission systems

#233
20100221847
2010-09-02

Photonic crystal sensors with integrated fluid containment structure, sample handling devices incorporating same, and uses thereof for biomolecular interaction analysis

#234
20100182606
2010-07-22

APPARATUS AND METHOD FOR MULTI-PARAMETER OPTICAL MEASUREMENTS

#235
20100172610
2010-07-08

Method of fabricating waveguide devices which use evanescent coupling between waveguides and grooves

#236
20100141928
2010-06-10

Continuous index of refraction compensation method for measurements in a medium

#237
20100110429
2010-05-06

Method and apparatus for measuring the refractive index of a material with Bragg gratings

#238
20100014073
2010-01-21

Optical element, refractive index sensor, refractive index sensor array, and biosensor

#239
20090279074
2009-11-12

Optically amplified critical wavelength refractometer

#240
20090153846
2009-06-18

FLUID LEVEL INDICATOR

#241
20090122300
2009-05-14

Optical refractometer for measuring seawater salinity and corresponding salinity sensor

#242
20090103076
2009-04-23

Transmitted light refractometer

#243
20090079976
2009-03-26

Photonic crystal sensors with integrated fluid containment structure, sample handling devices incorporating same, and uses thereof for biomolecular interaction analysis

#244
20090079968
2009-03-26

Apparatus for measuring differential refractive index

#245
20090041405
2009-02-12

Ridge waveguide optical sensor incorporating a Bragg grating

#246
20090009764
2009-01-08

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Method to derive physical properties of a sample after correcting the effects of interdetector band broadening

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Optical sensors for sensing the refractive index of fluid samples

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Immersion photolithography monitoring

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Differential refractive index detector

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Method for a liquid chemical concentration analysis system

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Optical multiphase flowmeter

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Refractive fuel concentration detector

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Medical System and Method for Determining Parameters

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Refractometer

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Tiled periodic metal film sensors

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Disposable optical sensor and method of manufacturing same

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Differential refractometer and its adjusting method

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Method for a liquid chemical concentration analysis system

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Method and apparatus for a liquid chemical concentration analysis system

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Apparatus for a liquid chemical concentration analysis system

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Optical member for measuring concentration, concentration measurement unit including the optical member, and fuel cell

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Micro sensor device

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Method of assaying an Fe-sugar complex

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Photonic crystal and waveguide sensor device

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Paste solids measurement in real time

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Methods for measurement or analysis of a nitrogen concentration of a specimen

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System and method for determining radius of gyration, molecular weight, and intrinsic viscosity of a polymeric distribution using gel permeation chromatography and light scattering detection

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Methods and apparatuses for measuring the refractive index and other optical properties of liquids, gels, and solids

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Enhanced sensitivity differential refractometer measurement cell

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Enhanced sensitivity differential refractometer incorporating a photodetector array

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Refractometer cell for both absolute and differential refractive index measurement of fluids

#275
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Method for correcting the effects of interdetector band broadening

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Focus detecting unit, and refractive index measuring apparatus and non-contact thermometer using the same

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Method of determining absorption and extinction coefficient of prism shaped material

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Thermo-optic refractometry

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Method of determining refractive indices and surface properties of prism shaped material

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MEMS optical sensor

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Scanning microscope using a probe beam deflection technique (PBDT)

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Optical measuring device, a refractometer and an arrangement for an optical measurement

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Tomographic approach to 3-D holographic refractometry

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Nested frequency combs

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Body including surface having concentric annular portions

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Methods and apparatus for the measurement of malt beverages

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Nested frequency combs