| Patents for G01J 3 - Spectrometry; Spectrophotometry; Monochromators; Measuring colours (33,177) |
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| 03/27/1990 | US4912329 Portable battery-operated ambient air analyzer |
| 03/27/1990 | CA1266998A1 Dielectric waveguide sensors and their use in immunoassays |
| 03/22/1990 | WO1990002929A1 Method for determining the color of an object, particularly a dental prothesis |
| 03/22/1990 | WO1990002928A1 Imaging spectrometer |
| 03/21/1990 | EP0359681A2 Characterization of particles by modulated dynamic light scattering |
| 03/21/1990 | EP0359213A2 Filter for optical beams |
| 03/21/1990 | EP0359167A2 Refractometer with an index-dependent aperture division |
| 03/21/1990 | EP0358830A1 Low noise optical system |
| 03/20/1990 | US4909633 Multi-channel spectral light measuring device |
| 03/20/1990 | US4909632 Method for selecting personal compatible colors |
| 03/14/1990 | EP0357986A2 Ink-measuring device |
| 03/14/1990 | CN1040344A Method and arrangement for determining surface-covering of primary colours |
| 03/13/1990 | US4907887 High resolution interferometer with high etendue |
| 03/08/1990 | WO1990002355A1 Device for separating a white light beam into a plurality of elementary beams of determined colour |
| 03/08/1990 | DE3923869A1 Gloss and colour difference determn. - by alternating laser beam and polychromatic irradiation and assessment of reflection |
| 03/07/1990 | EP0357319A2 An interferometer |
| 03/07/1990 | EP0356443A1 A wavelength-independent interferometer for optical signal processing. |
| 03/06/1990 | US4906836 Integrated circuit using logarithmic amplifier |
| 03/06/1990 | US4906093 Illuminator for the spectroscopic observation of minerals, gems, etc. |
| 02/28/1990 | EP0356349A1 Device for separating a white-light beam into a plurality of elementary beams with predetermined colours |
| 02/28/1990 | EP0355738A2 Fluorophotometer for use in automatic equipment of chemical analysis for measuring the intensity of fluorescence in the automatic equipment |
| 02/28/1990 | EP0355174A1 Photodiode array spectrometer |
| 02/28/1990 | CN1007015B Method and apparatus for the detection and measurement of gases |
| 02/28/1990 | CN1007010B Spectrophotometer |
| 02/27/1990 | US4905169 Method and apparatus for simultaneously measuring a plurality of spectral wavelengths present in electromagnetic radiation |
| 02/27/1990 | US4904088 Method and apparatus for determining radiation wavelengths and wavelength-corrected radiation power of monochromatic light sources |
| 02/22/1990 | WO1990001693A1 Optical inspection of food products |
| 02/20/1990 | US4902886 Noise reduction for photodiode arrays |
| 02/20/1990 | US4902136 Arrangement for high-resolution spectroscopy |
| 02/14/1990 | EP0354298A2 Interferometric measurement arrangement for gas components with small molecules |
| 02/14/1990 | CN2052896U Sheathed high efficient glass atomizer |
| 02/14/1990 | CN2052781U Color measuring device for cotton |
| 02/14/1990 | CN1006826B Acousto-optic dispersive light filter |
| 02/13/1990 | US4900148 Apparatus and process for measuring an optical characteristic of a predetermined portion of a flat object |
| 02/13/1990 | US4900113 Optical spectrum analyzer |
| 02/08/1990 | WO1990001150A1 Spectrophotometer |
| 02/07/1990 | EP0354067A2 Infrared spectral difference imager |
| 02/07/1990 | EP0354066A2 Infrared spectral difference detector |
| 02/07/1990 | CN2052532U Differential laser instrument of reflectivity & transmissivity |
| 02/07/1990 | CN1006736B Spectrophotometer |
| 02/06/1990 | US4899345 Atomic resonance in crossed linear polarization |
| 02/06/1990 | US4898467 Spectrometer apparatus for self-calibrating color imaging apparatus |
| 02/05/1990 | EP0345293A4 Microscope. |
| 02/05/1990 | EP0278976A4 Method and apparatus for distinguishing photoluminescent and reflecting surfaces in forensic science applications. |
| 01/31/1990 | EP0352923A1 Spectrophotometric apparatus and method for monitoring oxygen saturation |
| 01/30/1990 | US4896965 Real-time alkali monitoring system |
| 01/30/1990 | US4896948 Simplified double-cavity tunable optical filter using voltage-dependent refractive index |
| 01/30/1990 | US4896936 Component mounted to substrate with overlying bridge-shaped supporte |
| 01/30/1990 | CA1265232A1 Fluorescence imaging system |
| 01/25/1990 | WO1990000733A1 Computerised colour matching |
| 01/25/1990 | WO1990000732A1 Method and apparatus for spectroscopic measurement of the concentration of a gaz |
| 01/25/1990 | WO1990000731A1 Modulated glow-discharge lamp for atomic absorption spectrometry |
| 01/24/1990 | EP0351994A2 Concentration determination with multiple wavelength flash photometers |
| 01/24/1990 | CN1039123A Uv scanning system for centrifuge |
| 01/24/1990 | CN1039116A Appauatus and method for spectrophotometric analysis of material in moving process stream |
| 01/24/1990 | CN1006576B Pulse integrating flame-atom absorption stectral technique |
| 01/23/1990 | US4895445 Spectrophotometer |
| 01/17/1990 | EP0351188A2 Method of transforming the light-source color data and the non-luminous object color data |
| 01/11/1990 | DE3827322A1 Geraet zur simultanen atomabsorptionsspektrometrie Geraet for simultaneous atomic absorption spectrometry |
| 01/10/1990 | EP0350209A2 Real-time fourier transform spectrometry |
| 01/09/1990 | US4893353 Optical frequency synthesizer/sweeper |
| 01/09/1990 | US4893259 Optical spectrometer |
| 01/09/1990 | US4893003 Circle-to-line interferometer optical system |
| 01/04/1990 | DE3820783A1 Optical arrangement for correcting an astigmatic image formation |
| 12/20/1989 | EP0346665A1 Circuit for operating a pulse-modulated infrared radiation source |
| 12/20/1989 | EP0346387A1 Improved automatic atomic-absorption spectrometer |
| 12/20/1989 | CN2049766U Colour measurer |
| 12/19/1989 | US4888714 Spectrometer system having interconnected computers at multiple optical heads |
| 12/19/1989 | US4888484 Apparatus and method for spectrophotometric analysis of a material in a moving process stream |
| 12/19/1989 | US4887906 Color match predictability system and method |
| 12/13/1989 | EP0345773A2 Microspectroscope |
| 12/13/1989 | EP0345327A1 Wedge-filter spectrometer. |
| 12/13/1989 | EP0345293A1 Microscope. |
| 12/13/1989 | EP0258409A4 Economical spectrometer unit having simplified structure. |
| 12/13/1989 | CN1037966A Method of and apparatus for sorting and/or confirming the identity of gems |
| 12/12/1989 | US4887217 Process for manufacturing paints |
| 12/12/1989 | US4886366 Reference corrected color sensor |
| 12/12/1989 | US4886356 Detector cell for liquid chromatography |
| 12/12/1989 | US4886355 Combined gloss and color measuring instrument |
| 12/12/1989 | US4886341 Diffraction grating having a plurality of different grating constants |
| 12/06/1989 | EP0344783A2 Monochromator drift compensation |
| 12/06/1989 | EP0344782A2 Standardization of spectral lines |
| 12/06/1989 | EP0344739A2 Optoelectronic A/D converter using a plurality of parallel optical waveguide interferometers |
| 12/06/1989 | CN2048965U Probe type on line hue sensor for light cable |
| 11/29/1989 | EP0344027A1 Device for generating, starting from a single short duration light pulse, a train of synchronous light pulses and apparatus for measuring the temporal shape of a single light pulse using such a device |
| 11/29/1989 | EP0343659A1 Spectrometer |
| 11/29/1989 | EP0343187A1 Dynamic light scattering apparatus. |
| 11/29/1989 | EP0139643B1 Liquid crystal tuned birefringent filter |
| 11/28/1989 | US4884221 Color measuring apparatus |
| 11/28/1989 | US4884130 Method of describing a color in a triaxial planar vector color space |
| 11/28/1989 | US4883963 Optical analysis method and apparatus having programmable rapid random wavelength access |
| 11/28/1989 | US4883356 Spectrometer detector mounting assembly |
| 11/23/1989 | EP0343018A2 Spectroscopes |
| 11/23/1989 | DE3912240A1 Method and arrangement for the analysis of light spectra and for determining colour |
| 11/22/1989 | CN2048188U Atomizer |
| 11/21/1989 | US4882492 Non-invasive near infrared measurement of blood analyte concentrations |
| 11/21/1989 | US4881814 Scanning Michelson interferometer assembly |
| 11/21/1989 | US4881811 Remote color measurement device |
| 11/16/1989 | WO1989011086A1 Apparatus for viewing |
| 11/15/1989 | EP0341783A1 Method of and device for determining spectrum parameters of a spectrum related to spectroscopic signals |