Patents
Sitemap › G01 - Measuring; Testing › G01J - Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infra-red, visible or ultra-violet light; Colorimetry; Radiation pyrometry › G01J 3 - Spectrometry; Spectrophotometry; Monochromators; Measuring colours
Patents for G01J 3 - Spectrometry; Spectrophotometry; Monochromators; Measuring colours (33,177)
01/1992
01/07/1992US5078495 Monochromator
01/02/1992EP0463960A1 Colour analyzer
01/02/1992EP0463600A2 Method of spectral measurement
01/02/1992EP0463019A1 A method for distinguishing overlapping absorption bands of an infrared spectrum from one another.
12/1991
12/31/1991US5076699 Method and apparatus for remotely and portably measuring a gas of interest
12/27/1991EP0462744A1 Environmentally sealed colorimeter for industrial environments
12/25/1991CN2091451U Flame atomic absorption spectrophotometer
12/25/1991CN1015205B Wavelength scanning method of spectrophotometer
12/24/1991US5075770 Color balanced image detector system
12/24/1991US5075079 Incubation
12/22/1991CA2044359A1 Environmentally sealed colorimeter for industrial environments
12/18/1991EP0461862A1 Industrial colorimeter having lamp aging compensation means
12/18/1991EP0461861A1 Industrial colorimeter having light intensity compensation means
12/17/1991US5073028 For measuring color characteristics
12/17/1991US5073004 Tunable optical filter
12/15/1991CA2044419A1 Industrial colorimeter having lamp aging compensation means
12/15/1991CA2044050A1 Industrial colorimeter having light intensity compensation means
12/12/1991WO1991019183A1 Method for interactive self-modeling mixture analysis
12/11/1991EP0460268A1 Integrated optics device for interferometrically measuring light waves
12/11/1991EP0460085A1 Plane field stigmatic polychromator
12/10/1991US5072128 Defect inspecting apparatus using multiple color light to detect defects
12/10/1991US5072109 Photocell array with multi-spectral filter
12/10/1991US5071250 Spectrophotometer with fan speed control for temperature regulation
12/10/1991US5070874 Non-invasive determination of glucose concentration in body of patients
12/05/1991DE4017317A1 System for enhancing spectrometer resolution - shifts spectrum periodically relative to detector array
12/04/1991EP0459494A2 Method and apparatus for detecting wavelength of laser beam
12/04/1991EP0459119A2 Optical device
12/04/1991CN1056746A Double-ball cavity practical standard black body
12/03/1991US5070246 Spectrometer for measuring the concentration of components in a fluid stream and method for using same
12/03/1991US5070245 Apparatus and method for the identification of gases
12/02/1991CA2043582A1 Method and apparatus for detecting wavelength of laser beam
11/1991
11/27/1991EP0458138A2 Slide analysis system
11/27/1991CN1056576A Imaging spectrograph
11/26/1991US5068810 Process for the determination of colorimetric differences between two screen pattern fields printed by a printing machine and process for the color control or ink regulation of the print of a printing machine
11/24/1991WO1991018279A1 Gas analyzers
11/22/1991CA2036161A1 Slide analysis system
11/21/1991EP0457484A2 Tunable optical filter
11/21/1991EP0456802A1 Atomic resonance filter detector employing inert buffer gas
11/21/1991EP0456652A1 Optical colour-splitter arrangement.
11/21/1991EP0456637A1 Phase modulated spectrophotometry
11/20/1991CN1014827B Frequency modulated photometric method
11/19/1991US5066990 Reflector system for michelson interferometers
11/19/1991US5066127 Stigmatic imaging with spherical concave diffraction gratings
11/19/1991US5066126 Optical spectrum analyzer
11/19/1991CA1292282C Optical communication systems using fabry-perot cavities
11/14/1991DE4014572A1 Medical monitoring sensor for bleeding under bandage - responds to change in bandaging material i.e. dampness and/or colour to release alarm via evaluating circuit
11/13/1991CN1014746B Measuring device for the determination of filters adopted in the photographic enlarger and reproducer
11/12/1991US5065036 Light detection and control system
11/12/1991US5064283 Spectroscopy characterization module
11/12/1991US5064281 Method and apparatus for simplifying and improving consistency of color grading of gemstones
11/12/1991US5064263 Multiplexing apparatus for the direct optical reception of a plurality of optical wavelengths
11/06/1991EP0454999A2 Improved double-pass tunable optical filter
11/06/1991EP0454834A1 Optics and method for measuring fluorescence polarization
11/05/1991US5062714 Apparatus and method for pattern recognition
10/1991
10/31/1991WO1991016606A1 Michelson interferometer
10/31/1991DE4013422A1 Illumination set=up for three-channel colour temp. measuring appts. - selects narrow separated spectral ranges using two narrow band filters and measures their energy content
10/30/1991EP0454284A1 Spectrometer
10/30/1991EP0454124A1 Optical dispersion evaluation system
10/30/1991EP0453830A2 Scanning densitometer
10/30/1991CN1014549B Liquid chromatography
10/29/1991US5061854 Short scan passive infrared remote sensor
10/29/1991US5061066 Method for realizing a primary photometric standard of optical radiation using a photodetector and photodetecting apparatus therefor
10/24/1991DE4111287A1 Elliptical mirror assembly for Michelson interferometer - has composite multi-mirror rotating eccentrically to promote rapid and cyclic changes in beam path length
10/22/1991US5059027 Spatial heterodyne spectrometer and method
10/22/1991US5059026 Interferometric device having a controllable Fabry-Perot
10/22/1991US5059024 Tristimulus color evaluation sample cup
10/16/1991EP0452095A1 Dispersive holographic spectrometer
10/10/1991DE4109521A1 Multi-angle spectral photometer measuring colours - has light transmitters set at different emergent angles with reflected light intercepted by single receiver
10/09/1991EP0451106A1 Device for the analysis of printing test strips
10/09/1991EP0450057A1 Scanning sensor system including an interferometer
10/09/1991EP0199767B1 A fluorescence imaging system
10/09/1991CN1055238A Air-wedged fully-optical fourier spectrometer
10/08/1991US5056101 Mode partition screening apparatus
10/08/1991US5055692 System for measuring ambient pressure and temperature
10/08/1991US5055684 System to reduce wave shift error in spectrophotometer caused by hot spots in the light source
10/03/1991WO1991014934A1 Color measurement
10/03/1991WO1991014928A1 Apparatus for measuring wavelength of light by high precision detection of interference fringe
10/02/1991EP0449638A1 Spectral resolving and sensing apparatus
10/02/1991EP0449442A1 Stray radiation compensation
10/02/1991EP0449434A2 Multi-cell module for spectrophotometry
10/02/1991EP0449338A2 Reduction of undesired hyperfine line absorption in optical resonance filters
10/02/1991EP0387261A4 Raman spectrometer having hadamard electrooptical mask and diode detector
10/02/1991CN1055058A Infrared preprocessor
10/01/1991US5052804 Non-imaging optical detector with variable field-view
09/1991
09/25/1991CN1054830A Multi-wavelength photometer controlled by microcomputer
09/24/1991US5050992 Dispersive holographic spectrometer
09/24/1991US5050991 High optical density measuring spectrometer
09/24/1991US5050990 Variable detector geometry for resolving and sensing apparatus for filtering and other applications
09/24/1991US5050989 Single Hadamard mask spectrograph system
09/19/1991WO1991014159A1 A method of reflection measurement
09/18/1991EP0446808A2 Method and apparatus for measuring the colour of fibre slivers
09/18/1991EP0446512A1 Method for selecting personal compatible colors
09/17/1991WO1991014158A1 Method for selecting personal compatible colors
09/17/1991US5048970 Optical attachment for variable angle reflection spectroscopy
09/17/1991US5048960 Microspectroscope
09/17/1991US5048959 Spectrographic imaging system
09/17/1991US5048958 Self-focusing optical system for spectrophotometric measurements and the like, with optical fiber sensors
09/12/1991DE4006790A1 Stimulation spectral width reduction for charged gas particles - uses stimulation of gas particles by laser within short time intervals with max. voltage applied to ion trap
09/11/1991EP0446168A1 Method for determining paint- and printing formulae from a colour original
09/11/1991EP0445934A2 Spectrometer
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