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)
06/1991
06/04/1991US5021645 Photoelectric color sensor for article sorting
06/04/1991US5020910 Monolithic diffraction spectrometer
06/04/1991US5020909 Single-beam
06/04/1991US5020884 Optical cell
05/1991
05/30/1991WO1991007652A1 Optics and method for measuring fluorescence polarization
05/29/1991EP0428744A1 Wavelength detector
05/29/1991CN1012704B Compensatory technique and device of series interference in dual-channel ratio recorder
05/28/1991US5019715 Optical system and method for sample analyzation
05/28/1991US5018856 Continuum source atomic absorption spectrometry
05/28/1991US5018531 Skin blemish measuring and recording system and method
05/22/1991EP0428270A1 Spectrophotometer
05/22/1991EP0427996A2 Process and apparatus for determining qualitatively and quantitatively organic compounds
05/22/1991EP0427966A2 Dual monochromator
05/22/1991EP0427797A1 Polarization interferometer.
05/22/1991EP0250519B1 Method and device for determining the colour, particularly of a dental prosthesis
05/21/1991US5017785 IR-spectrometric analyzing procedure and means
05/21/1991US5017007 Apparatus and microbase for surface-enhanced raman spectroscopy system and method for producing same
05/21/1991CA1284372C Radiation deflector assembly
05/15/1991EP0427394A2 Micropipette adaptor for spectrofluorometers
05/15/1991EP0427093A2 Method and apparatus for measuring small particle size distribution
05/15/1991CN1051424A 分光光度计 Spectrophotometer
05/14/1991US5015838 Color sensor having laminated semiconductor layers
05/14/1991US5015069 Off axis rotation of diffraction grating
05/08/1991EP0426357A2 Optical equalization receiver for lightwave communication systems
05/08/1991EP0426104A2 Laser wavelength measuring device
05/08/1991EP0426011A1 Two-beam interferometer for use in fourier transform spectrometer and driving device for movable flat mirror of same
05/08/1991EP0425882A1 Infrared microscopic spectrometer
05/08/1991EP0325633A4 System for measuring the size distribution of particles dispersedin a fluid
05/08/1991EP0163743B1 Monochromator
05/07/1991US5014217 Apparatus and method for automatically identifying chemical species within a plasma reactor environment
05/07/1991US5014216 Concentration determination with multiple wavelength flash photometers
05/07/1991US5013153 Interferometric gas component measuring apparatus for small gas molecules
05/07/1991US5013120 Monochromator to fiber-cable coupling system
05/02/1991WO1991005988A1 Process and device for fabry-perot spectroscopy
05/02/1991EP0425446A2 Device for the comparative analysis of organic samples
05/01/1991CN2076233U Apparatus for continuous measuring transient temp. by spectrometry
05/01/1991CA2028706A1 Laser wavelength measuring device
04/1991
04/30/1991US5012431 Objective color notation system
04/30/1991US5011290 Test sample color comparison device
04/30/1991US5011284 Detection system for Raman scattering employing holographic diffraction
04/30/1991US5011279 Fiber-optical sensor
04/25/1991CA2023644A1 Device for the comparative analysis of organic samples
04/24/1991EP0423903A2 Spectral modulation sensor having an optically resonant structure and optical measuring devices using the same
04/24/1991EP0423736A2 Multi-element simultaneous analysis atomic absorption spectroscopy photometer and multi-element simultaneous analytic method
04/24/1991EP0423223A1 Method and apparatus for spectroscopic measurement of the concentration of a gaz.
04/24/1991EP0290529B1 Monochromator arrangement
04/23/1991US5009488 Filter accessory for an imaging microspectrofluorimeter
04/23/1991US5009099 Background correction method for use in gas chromatography
04/18/1991WO1991005360A1 Video pixel spectrometer
04/18/1991DE4031423A1 Spectral photometer - selectively combines sensors, scattering elements of different optical characteristics to cover range
04/17/1991EP0422183A1 Spatial heterodyne spectrometer and method
04/17/1991EP0316442A4 Near infrared measurement apparatus for organic materials
04/16/1991US5008606 Device for controlling vibration-free movement of an optical element in a stellar inteferometer and stellar interferometer comprising same
04/10/1991EP0420944A1 Optical inspection of food products
04/09/1991US5005971 Method and apparatus for simplifying and improving consistency of color grading of gemstones
04/07/1991WO1991005217A1 Scanning sensor system including an interferometer
04/07/1991CA2044155A1 Scanning sensor system including an interferometer
04/04/1991WO1991004489A1 A homogeneous interferometric immunoassay system
04/04/1991WO1991004470A1 Spectrometer for performing measurements in a fluid stream
04/03/1991EP0420135A1 Spectrophotometric instrument with rapid scanning distortion correction
04/02/1991US5003977 Device for analyzing fluorescent light signals
03/1991
03/26/1991US5003500 Process and apparatus for the preparation of color formulations utilizing polarized light in spectrophotometry
03/26/1991US5003184 Low temperature infrared source
03/26/1991US5002393 Low noise optical system
03/26/1991US5002392 Multichannel optical monitoring system
03/26/1991US5002390 Atomic emission spectrometer for simultaneous multi-element measurement of elements in a sample
03/26/1991US5002347 Stepped thickness spectral filter for focal plane flattening
03/26/1991CA1281914C Method and device for the determination of a color, particularly for a dental prosthesis
03/23/1991WO1991004484A1 Soil test apparatus
03/23/1991CA2066722A1 Soil test apparatus
03/21/1991WO1991003714A1 A spectrometric method and a spectrometer
03/21/1991DE3929845A1 Optical radiation wavelength determining equipment - has detectors having different spectral sensitivities and computer determining incident light wavelength
03/21/1991DE3929453C1 Fibre-Fabry-Perot interferometer - has slot in substrate enabling opposite regions to be moved w.r.t. V=shaped groove for optical fibres
03/20/1991EP0417709A2 Spectrum measuring equipment
03/20/1991EP0417551A2 Photoreflectance method and apparatus utilizing acousto-optic modulation
03/20/1991EP0417121A1 Apparatus for viewing.
03/20/1991EP0254731B1 Frequency agile spectrometer
03/20/1991CN1012108B Integrating sphere measuration device of spectrophotometer
03/13/1991EP0416996A1 Spectroscopical analytical device
03/13/1991CN2073112U Natural light displaying desk lamp
03/12/1991US4999498 Remote sensing gas analyzer
03/12/1991US4999489 Optical sensor using concave diffraction grating
03/12/1991US4999013 Controllable interferometer
03/12/1991US4999010 Dual beam optical nulling interferometric spectrometer
03/12/1991US4998882 Color indicating devices
03/12/1991US4998824 System of fluid inspection and/or identification
03/12/1991CA1281205C High optical efficiency dual spectra pyrometer
03/07/1991WO1991002955A1 Shade distinguishing device
03/07/1991WO1991002954A1 Varied space diffraction grating and in-focus monochromator
03/06/1991EP0415401A2 Improved multiplicative signal correction method and apparatus
03/06/1991EP0415151A1 Procedure for the determination on concentration by means of optical emission-spectroscopy
03/06/1991EP0229790B1 Apparatus for measuring atomic spektra
03/05/1991US4998017 Method and arrangement for measuring the optical absorptions of gaseous mixtures
03/05/1991US4997281 Grating spectrometer
03/05/1991US4997280 Spectrophotometric instrument with rapid scanning distortion correction
02/1991
02/27/1991EP0414072A1 Low temperature infrared source
02/27/1991EP0413952A1 Interferometric analyzer
02/27/1991EP0413939A1 Improved grating spectrometer
02/27/1991CN2072307U Pen type mercury lamp device
02/26/1991US4996427 Imager for simultaneously obtaining two images of differing color bands using a single photodetector area array
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