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)
10/1981
10/27/1981US4297579 Bi-frequency infrared spectrometer
10/27/1981US4297035 Method and device for detecting a specific spectral feature
10/20/1981CA1111130A1 Circuit arrangement for recognizing and adjusting color components
10/20/1981CA1110873A1 Instrument for determining the distinctness of image of a paint film
10/14/1981EP0037787A1 Monochromator
10/13/1981CA1110465A1 Process and device for the evaluation of photometric measurement values
10/07/1981EP0037237A2 Energizing circuit for discharge-type fire alarm sensor unit
10/06/1981US4293223 Method and apparatus for controlling resonant frequency of an optical interferometer cavity
10/06/1981US4293222 Control apparatus for spectrophotometer
09/1981
09/29/1981US4292526 Isotropically sensitive optical filter employing atomic resonance transitions
09/29/1981US4291985 Dual beam photometer with rotating filter plate
09/23/1981EP0036000A1 Continuous flow automatic chemical analysis systems and components for use therein
09/22/1981US4290699 Color synthesizing
09/22/1981US4290696 Spectrophotometric system
09/15/1981US4289405 Color monitoring system for use in creating colored displays
09/15/1981US4289401 Optical system for spectral devices
09/08/1981CA1108604A1 Process for conditioning an acid hydrolysate of vegetable substances and products thus obtained
09/08/1981CA1108447A1 Photometer microscope for microphotometer scanning of fine specimen structures
09/08/1981CA1108429A1 Spectrophotometer
09/01/1981US4287418 Method for measuring the spectral distribution of electromagnetic radiation intensity and spectrometer of millimetric and far-infrared ranges for effecting same
09/01/1981US4286877 Refractively scanned interferometer
08/1981
08/26/1981EP0034325A1 Two-beam interferometer for Fourier spectroscopy
08/25/1981US4285596 Holographic diffraction grating system for rapid scan spectral analysis
08/18/1981USRE30712 System and apparatus for contour plotting the total luminescence spectrum of a sample
08/18/1981US4284897 Fluorescence determining microscope utilizing laser light
08/18/1981US4284354 Sensitive nonlinear optical spectroscopy
08/12/1981EP0033493A1 Method and circuit arrangement for colour recognition
08/12/1981EP0033335A1 Refractively scanned interferometer.
08/06/1981WO1981002205A1 Process and device for the partial post-correction of the colour recognition domains in the recognition of colours
08/05/1981EP0033048A1 Interferometer with tunable optical cavity comprising a monomodal optical fibre, and its application to filtration and spectrography
08/05/1981EP0032918A1 Spectrometer with light guides
07/1981
07/28/1981CA1105731A1 Apparatus to ensure the quality of printed work
07/21/1981US4279511 Photometric absorption detector
07/14/1981US4278902 Tunable 16-micron coherent source including parahydrogen Raman transition and method
07/14/1981US4278351 Interferometer
07/07/1981US4277760 Crossed-beam phase-matched coherent anti-stokes raman spectroscopy
07/01/1981EP0031027A2 Arrangement for the spectral dispersion of light; device for optical information-transmission using such arrangements; device for storing optical images using such arrangements
06/1981
06/23/1981US4274744 Direct reading digital colorimeter
06/23/1981US4274706 Wavelength multiplexer/demultiplexer for optical circuits
06/16/1981US4274063 Infrared spectroscopic lamps and gas detectors incorporating such lamps
06/16/1981US4273442 Spectral photometer for medical applications
06/16/1981CA1103074A1 Holographic diffraction grating system for rapid scan spectral analysis
06/02/1981US4270864 Photoacoustic rotational raman spectroscopy
05/1981
05/28/1981WO1981001466A1 A method and apparatus for measuring the frequency of radiation
05/28/1981WO1981001465A1 Spectroscopic apparatus and method of correcting beam imbalance
05/28/1981WO1981001464A1 Method and apparatus for obtaining derivatives of photometric signals
05/26/1981US4269509 Photoacoustic Raman spectroscopy
05/19/1981US4268170 Multi-path monochromator
05/19/1981US4267844 Medical instrument for determining jaundice
05/12/1981US4267572 Apparatus for determining the concentration of the components of a sample
05/05/1981US4266131 Gas analyzer
05/05/1981US4265540 Refractively scanned interferometer
05/05/1981US4265539 Device which measures the mutual coherence function of a laser beam
04/1981
04/30/1981WO1981001203A1 Colour analyser
04/28/1981US4264205 Rapid scan spectral analysis system utilizing higher order spectral reflections of holographic diffraction gratings
04/15/1981EP0026885A1 Filterphotometer
04/07/1981US4260262 Grain quality analyzer
04/02/1981WO1981000911A1 Continuous flow automatic chemical analysis systems and components for use therein
03/1981
03/31/1981US4259020 Automatic calibration control for color grading apparatus
03/31/1981US4259014 Fiber optic polychromator
03/25/1981EP0025491A2 A method and apparatus for detecting one or more spectral features in a sample
03/17/1981US4256405 Scanning spectrometer
03/17/1981US4256131 Feedback color control system
03/10/1981US4255053 Photometer including auxiliary indicator means
03/10/1981US4255051 Apparatus for emission spectrochemical analysis
03/10/1981CA1097109A1 Device for producing variable colors
03/03/1981US4254335 Spectrograph-monochromator of grazing incidence type
03/03/1981US4253765 Multi-wavelength spectrophotometer
03/03/1981US4253733 Generator of a harmonic of laser light
02/1981
02/24/1981CA1096210A1 Method and means for aligning focusing mirrors in an optical spectrometer
02/10/1981US4250465 Radiation beam deflection system
02/10/1981CA1095300A1 Optical beam-switching chopper
02/05/1981WO1981000301A1 Spectrometer with light guide
02/05/1981WO1981000299A1 Refractively scanned interferometer
02/03/1981US4248536 Dual wavelength photometric device
01/1981
01/27/1981US4247202 Automatic computing color meter
01/20/1981US4245911 Economical fast scan spectrometer
01/20/1981US4245908 Apparatus for controlling and monitoring the dispersive element and recording instrument in spectrometric apparatus
01/13/1981CA1093341A1 Two-flame burner for flame photometric detection
01/07/1981EP0020876A2 Signal processing circuit
01/07/1981EP0020801A1 Double-beam infrared spectrometer
01/07/1981EP0020372A1 Dual beam fourier spectrometer
01/06/1981US4243881 Time-resolved infrared spectral photography
12/1980
12/30/1980US4241999 Monochromators
12/30/1980US4241998 Spectrophotometer
12/30/1980US4241738 Spectral photometer for medical use in determining skin coloration
12/30/1980US4241520 Color calculator
12/23/1980CA1091967A1 Cam filter wheel for tilting optical filters
12/16/1980US4239393 Optical density scanning head
12/16/1980US4239390 Method of obtaining high resolution light scattering spectra
12/16/1980CA1091466A1 Scanning optical spectral analyzer
12/09/1980US4238141 Time delay spectrum conditioner
12/02/1980EP0016147A4 Refractively scanned interferometer.
11/1980
11/26/1980EP0019478A2 Apparatus and method for indicating a colour change of an object
11/25/1980US4235518 High efficiency laser spectrum conditioner
11/12/1980EP0018874A1 Optoelectric multispectral reception system with high dynamic range
11/11/1980US4233657 Source lamp positioning apparatus
11/11/1980US4232971 Integrating sphere type standard light source device
10/1980
10/28/1980CA1088343A1 Spectrometer
10/15/1980EP0017267A2 Spectrophotometer
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