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)
09/1991
09/11/1991CN1013898B Apparatus for measurement of colour properties of paint
09/10/1991US5047650 Monochrometer
09/10/1991US5047620 Laser pulse receiver for detecting and recording weak laser pulses in variable background radiation
09/06/1991WO1991014157A2 Acousto-optic tunable double-beam spectrometer
09/05/1991WO1991013325A1 An ''in-line'' spectral reference method for spectrometers
09/04/1991EP0444689A2 A compensation method adapted for use in color measuring apparatus
09/04/1991CN1054335A Infrared receiver with electric colour split
09/04/1991CN1054311A Detector of fourier transform infrared spectrometer
09/03/1991US5045701 Infrared spectropolarimeter
09/03/1991US5044753 Environmentally sealed colorimeter for industrial environments
08/1991
08/28/1991EP0443477A1 Michelson type interferometer for the generation of optical path differences
08/28/1991EP0443284A2 Detector of a Fourier transform infrared spectrometer
08/27/1991US5043726 Spectral analyzer and direction indicator for laser guided aircraft landing system
08/27/1991US5043571 CCD photosensor and its application to a spectrophotometer
08/27/1991US5042948 Industrial colorimeter having lamp aging compensation means
08/27/1991US5042947 Scrap detector
08/27/1991US5042893 Direct mount coupling to a spectrophotometer
08/22/1991WO1991012500A1 Improvements relating to colour measurement
08/22/1991DE4005491A1 Optical path difference interferometer of Michelson tyre - contains rotating retroreflectors, beam divider, plane mirrors, adjustable to minimise one path length whilst other is maximal
08/21/1991EP0442738A2 Variable wavelength light filter and sensor system
08/21/1991EP0442596A2 Echelle-polychromator
08/21/1991EP0442206A2 Holographic filter
08/20/1991US5041727 Spectrophotometer with near infrared radiation sensor having an improved sensitivity
08/20/1991US5040940 Device for the alignment of the desheathed ends of round cables
08/20/1991US5040897 Process for visually detecting a color drift in a polychrome reproduction
08/20/1991US5040895 Process for the simultaneous detection of several gases in a gaseous mixture, and equipment for using the process
08/20/1991US5040889 Spectrometer with combined visible and ultraviolet sample illumination
08/20/1991CA1287749C Colour quantification system for precise measurement of parameters including colour changes
08/16/1991WO1991012499A1 Wavelength detector
08/16/1991CA2051398A1 Wavelength detecting apparatus
08/14/1991EP0437439A4 Computerised colour matching
08/14/1991CN2082857U Semiconductor photoelectric colorimeter
08/13/1991US5039855 Dual beam acousto-optic tunable spectrometer
08/13/1991US5039222 Apparatus and method for producing fourier transform spectra for a test object in fourier transform spectrographs
08/13/1991US5039219 Luminescence system and method for determining the nature of substances by measuring fluorescence and phosphorescence properties
08/13/1991US5039203 Optical window member and method for production thereof
08/13/1991US5039201 Double-pass tunable fabry-perot optical filter
08/08/1991WO1991011693A1 Method and device for evaluating the condition of the ozone layer
08/08/1991DE4101557A1 Receiving arrangement for echelle polychromators - ascertains intensity of various spectral lines of radiation spectrum
08/07/1991EP0440443A2 Multispectral reflectometer
08/07/1991CN2082414U Multifunctional photo-electric colorimeter
08/07/1991CN1053686A Method and apparatus for controlling reciprocation of movable mirror of interferometric spectrophotometer
08/06/1991US5038258 Illuminating arrangement for illuminating an object with incident light
08/06/1991US5038040 Soil test apparatus
08/06/1991US5037201 Spectral resolving and sensing apparatus
08/01/1991DE4002630A1 IR emitter for spectral analyser - has diffusion barrier layer improving stability of reflective coating
07/1991
07/31/1991EP0438450A1 Device for measuring physical quantities by transmitting and receiving electromagnetic radiation
07/31/1991EP0307451B1 Apparatus and method for locating the direction of an atomic beam
07/31/1991CA2035224A1 Multispectral reflectometer
07/30/1991US5035508 Light absorption analyser
07/25/1991WO1991010896A1 Method for operating a radiation absorption photometer
07/24/1991EP0437439A1 Computerised colour matching.
07/24/1991CN1013263B Device for fastening flexible forme
07/23/1991US5033963 Color system
07/23/1991US5033857 Method of transforming light-source color data and non-luminous object color data
07/17/1991EP0437249A2 Spectrometric method free from variations of error
07/17/1991EP0436945A2 Method for controlling reciprocation of movable mirror of interferometric spectrophotometer
07/17/1991EP0436752A1 Optical interference signal extractor
07/16/1991US5032024 Optical examination apparatus
07/12/1991CA2033832A1 Spectrometric method free from variations of error factors
07/11/1991WO1991010143A1 System for measuring velocity field of fluid flow utilizing a laser-doppler spectral image converter
07/11/1991DE4000583A1 Verfahren zum betreiben eines strahlungsabsorptionsspektrometers A method of operating a radiation absorption spectrometer
07/10/1991EP0436181A1 Spectrophotometer with fan speed control for temperature regulation
07/10/1991CN2080663U General hollow cathode lamp
07/10/1991CN1052945A 干涉分光光度计 Interference spectrophotometer
07/09/1991US5030007 System for vibration isolation of FT-IR interferometers
07/09/1991US5030006 Monochromator for single and multiplexed dual wavelength spectroscopy
07/09/1991US5029999 Laser radar device
07/09/1991US5029967 Optical source for optical sensing system
07/05/1991CA2007240A1 Method and apparatus for spectroscopic measurement of the concentration of a gas
07/04/1991CA2033503A1 Spectrophotometer with fan speed control for temperature regulation
07/03/1991EP0435327A2 Interference spectrophotometer
07/03/1991CN2080171U Relative spectrum energy measuring instrument
07/02/1991US5029245 Procedure for controlling a radiation source and controllable radiation source
07/02/1991US5028800 Two-beam photometer using specific beam chopper arrangement
07/02/1991US5028134 Depolarizer for light measuring instruments
06/1991
06/30/1991WO1991010122A1 Thin-film spectroscopic sensor
06/30/1991CA2072588A1 Thin-film spectroscopic sensor
06/29/1991CA2006899A1 Stellar distance computer
06/27/1991WO1991009392A1 Color selecting apparatus
06/25/1991US5027435 Optical communication systems using Fabry-Perot cavities
06/25/1991US5027195 Color detection and/or recognition apparatus
06/25/1991US5026999 Method of remotely measuring subsurface water temperatures by stimulated raman scattering using stimulated brillouin backscattering
06/25/1991US5026286 Color standard arrangement
06/25/1991US5026160 Monolithic optical programmable spectrograph (MOPS)
06/19/1991EP0432842A1 Spectrometer comprising a slit box
06/18/1991US5024530 Multichannel telecentric filtered imager
06/13/1991WO1991008455A1 Multichannel optical monitoring system
06/13/1991WO1991008454A1 Double-beam spectrometer
06/12/1991EP0431368A2 System to reduce wave shift error in spectrophotometer caused by hot spots in the light source
06/12/1991CN1012841B Measuring head
06/11/1991US5023947 Optical equalization receiver for lightwave communication systems
06/11/1991US5023814 Method and apparatus for countertyping a tint from a collection of base tints
06/11/1991US5023804 Method and apparatus for comparing spectra
06/11/1991US5022755 Gas chromatography apparatus
06/07/1991WO1991008453A1 Atomic resonance filter detector employing inert buffer gas
06/07/1991CA2046593A1 Atomic resonance filter detector employing inert buffer gas
06/07/1991CA2031687A1 System to reduce wave shift error in spectrophotometer caused by hot spots in the light source
06/04/1991US5021662 Method and apparatus for real-time in-line material monitoring
06/04/1991US5021661 Time-resolved infrared spectrophotometer
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