| Patents for G01J 3 - Spectrometry; Spectrophotometry; Monochromators; Measuring colours (33,177) |
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| 07/31/1990 | US4945249 For detecting an anomaly at or near a water or land surface |
| 07/31/1990 | US4945230 Optical measuring device using a spectral modulation sensor having an optically resonant structure |
| 07/31/1990 | US4944589 Method of reducing the susceptibility to interference of a measuring instrument |
| 07/25/1990 | EP0379168A2 Inspection chamber for the visual assessment of coloured test objects |
| 07/24/1990 | US4943142 Imaging microspectrofluorimeter |
| 07/18/1990 | EP0378108A2 Spectrometer with direct drive high speed oscillating grating |
| 07/18/1990 | EP0377737A1 Spectrophotometer |
| 07/18/1990 | EP0377720A1 Modulated glow-discharge lamp for atomic absorption spectrometry |
| 07/18/1990 | CA2008095A1 Opto-electronic measuring device |
| 07/17/1990 | US4941747 Optical sensing arrangements |
| 07/12/1990 | WO1990007728A1 Device for point-by-point measurement of coloured originals |
| 07/12/1990 | WO1990007723A1 Spectromicroscope with photometer |
| 07/12/1990 | WO1990007698A1 Interferometry device for fourier transform multiplex spectro-imaging apparatus and spectro-imaging apparatus containing the same |
| 07/12/1990 | WO1990007697A1 Dual fiber optic spectrophotometer |
| 07/12/1990 | DE3900402A1 Apparatus for the determination of optical material characteristics |
| 07/11/1990 | EP0222885B1 Spectral analyzer and direction indicator and aircraft landing system application |
| 07/10/1990 | US4940325 Device for the investigation of highly resolved partial spectra of an echelle spectrum |
| 07/10/1990 | CA1271552A1 Wavelength selection device and method |
| 07/05/1990 | DE3843700A1 Colorimeter |
| 07/03/1990 | US4938553 Arrangement for an integrated optical spectrometer and the method for manufacturing the spectrometer |
| 06/28/1990 | WO1990007108A1 Raman analysis apparatus |
| 06/28/1990 | CA2006699A1 Scanning interferometric device for a multiplex fourier transform spectro-imager and spectro-imager equipped with said device |
| 06/27/1990 | EP0375603A1 Method and apparatus for visually detecting a colour deviation in a multicolour reproduction |
| 06/27/1990 | EP0375317A2 Portable colorimeter and method for characterization of a colored surface |
| 06/26/1990 | US4937457 Picosecond multi-harmonic fourier fluorometer |
| 06/26/1990 | US4936685 Method and apparatus for the measurement of color properties of paint |
| 06/26/1990 | US4936684 Spectrometer with photodetector array detecting uniform bandwidth intervals |
| 06/26/1990 | CA1270951A1 Computerized color matching |
| 06/20/1990 | CA2005367A1 Portable colorimeter and method for characterization of a colored surface |
| 06/19/1990 | US4935875 Chemical analyzer |
| 06/19/1990 | US4935628 Method and apparatus for detecting inks |
| 06/12/1990 | US4933543 Dark signal compensation for diode arrays |
| 06/12/1990 | US4932779 Color measuring instrument with integrating sphere |
| 06/05/1990 | US4930892 Photodiode array spectrometer |
| 06/05/1990 | US4930891 Method and apparatus for scanning wavelength in spectrophotometers |
| 06/05/1990 | US4930865 Optical transmission spectrometer |
| 06/02/1990 | CA2004465A1 Method and apparatus for determining ambient light and surface reflectance |
| 05/30/1990 | EP0370439A2 Resonant radiation protector |
| 05/29/1990 | US4929084 Measuring head |
| 05/29/1990 | US4929080 Apparatus for the optical measurement of spectra distribution |
| 05/29/1990 | US4929078 Conversion of dual wave beam spectrophotometer to dual wavelength spectrophotometer |
| 05/29/1990 | CA1269546A2 Dielectric waveguide sensors and their use in immunoassays |
| 05/23/1990 | EP0369054A1 Arrangement of reflectors for a Michelson interferometer |
| 05/22/1990 | US4928015 Measuring multicomponent constituency of gas emission flow |
| 05/22/1990 | US4928007 Opto-electric A/D converter |
| 05/22/1990 | US4927269 Correction of non-linearities in detectors in fourier transform spectroscopy |
| 05/22/1990 | US4927265 Detector for fluorescence and absorption spectroscopy |
| 05/18/1990 | CA2002949A1 Process for visually detecting a colour drift in a polychrome reproduction |
| 05/17/1990 | WO1990005286A1 Spectrometer apparatus for self-calibrating color imaging apparatus |
| 05/17/1990 | DE3925012A1 Verfahren und anordnung zur bestimmung der flaechenbedeckung der primaerfarben in messsegmenten mehrfarbiger druckvorlagen einer offsetdruckmaschine Method and arrangement for determination of the surface coverage of primaerfarben measured in segments multicolored printed templates of offset printing machine |
| 05/16/1990 | EP0368073A2 Process and device for adjusting the stripped ends of round cables |
| 05/15/1990 | US4926428 Method and apparatus for sensing the wavelength of a laser beam |
| 05/15/1990 | US4925307 Apparatus and method for the spectrochemical analysis of liquids using the laser spark |
| 05/15/1990 | US4925305 Method of determining the humudity of a sample |
| 05/09/1990 | EP0367647A1 Device for gathering colorimetric information in situ, especially at a tooth in the mouth |
| 05/09/1990 | EP0367097A2 Optical transmission spectrometer |
| 05/09/1990 | EP0366696A1 Procedure for controlling a radiation source and controllable radiation source. |
| 05/09/1990 | CN2056920U Protecting hander for glass capillary chromatographic column |
| 05/09/1990 | CN1007928B Apparatus for analyzing spectrum |
| 05/08/1990 | US4923266 Optical fiber device for generating a train of synchronous light pulses each comprising at most one photon and an apparatus for measuring same |
| 05/07/1990 | CA2002250A1 Process and device for the alignment of the desheathed ends of round cables |
| 05/03/1990 | WO1990004762A1 Apparatus for taking in situ colorimetric information, particularly on a tooth in a mouth |
| 05/03/1990 | WO1990004761A1 Device for measuring physical quantities by transmitting and receiving electromagnetic radiation |
| 05/02/1990 | EP0365631A1 Resonant piezoelectric chopper for infrared radiation |
| 05/01/1990 | USH780 Optical data processing detection of chemical agents |
| 05/01/1990 | US4922309 Analyzing a sample |
| 05/01/1990 | US4922108 Infrared radiation source, especially for a multi-channel gas analyzer |
| 05/01/1990 | US4922104 Infrared microspectrometer |
| 05/01/1990 | US4921351 Spectrophotometer comprising a xenon flashtube as a light source |
| 05/01/1990 | US4921350 Monochromator second order subtraction method |
| 04/26/1990 | DE3933461A1 Electronic colour recognition system - has logical evaluation circuit relating signals from multiple channels with optical filter and photosensitive elements |
| 04/25/1990 | EP0365310A2 Colour detection and/or recognition apparatus |
| 04/25/1990 | CN1041667A Long life vecuum ultraviolet non-pole discharge lamp |
| 04/24/1990 | US4919537 Method for optically detecting stratification in a sample |
| 04/24/1990 | US4919536 System for measuring velocity field of fluid flow utilizing a laser-doppler spectral image converter |
| 04/24/1990 | US4919535 Reflectance measuring apparatus for making contactless measurements |
| 04/19/1990 | WO1990004155A1 Colour detecting electronic system |
| 04/18/1990 | CN1041448A 分光光度计 Spectrophotometer |
| 04/18/1990 | CN1041447A Raster holographic spectrometer |
| 04/17/1990 | US4918491 Emission spectral width measuring apparatus for light source |
| 04/17/1990 | US4917500 Color sensor system for the recognition of objects with colored surfaces |
| 04/17/1990 | US4917495 Portable colorimeter and method for characterization of a colored surface |
| 04/17/1990 | US4917492 Spectrum measuring apparatus |
| 04/17/1990 | CA2000752A1 Apparatus for obtaining colorimetric datas in situ, specially on a tooth in the mouth |
| 04/11/1990 | EP0362577A2 Process for optically bringing an element analysis system and a laser in touch with liquid metal in a crucible |
| 04/11/1990 | EP0362562A2 Spectrometer for the simultaneous measurement of intensity in several spectral ranges |
| 04/11/1990 | CN1007554B Spectrophotometer |
| 04/10/1990 | US4916645 Continuous monochrometer drift compensation of a spectral monochromator |
| 04/10/1990 | US4915502 Interferometer spectrometer having tiltable reflector assembly and reflector assembly therefor |
| 04/05/1990 | WO1990003567A1 METHOD AND DEVICE FOR DETERMINING THE pH AND THE CELL CONCENTRATION IN A CELL CULTURE MEDIUM |
| 04/05/1990 | DE3833598A1 Photometer |
| 04/05/1990 | DE3833104A1 Beam-guiding element |
| 04/04/1990 | EP0361311A2 Spectrophotometer |
| 04/04/1990 | EP0361064A2 Optical spectrum analyzer with high performance measurement function |
| 04/04/1990 | CN1041037A Chroma coordinate adjusting method for light source |
| 04/03/1990 | US4914738 Apparatus for discriminating light source having spectrum peaks |
| 03/28/1990 | EP0360738A1 Method and apparatus for calculating paints formulae |
| 03/28/1990 | EP0360657A1 Method for determining the colour of an object, particularly of a dental prosthesis |
| 03/28/1990 | CN1007375B Monochrometer |
| 03/27/1990 | US4912526 Optical frequency synthesizer/sweeper |