Patents for G01J 3 - Spectrometry; Spectrophotometry; Monochromators; Measuring colours (33,177)
10/1979
10/31/1979EP0004962A1 Glow discharge lamp for qualitative and quantitative spectral analysis
10/30/1979US4172663 Optical wavelength meter
10/30/1979US4172637 Common beam aperture for dual beam spectrophotometers
10/23/1979US4171913 Spectrophotometer
10/23/1979US4171909 Apparatus for measuring light intensities
10/16/1979CA1064569A1 Ultraviolet radiation source
10/02/1979US4169678 Spectrophotometer
09/1979
09/25/1979US4168910 Optical beam-switching chopper
09/18/1979CA1062762A1 Color dot screen for electro photography
09/11/1979US4167338 Method and apparatus for determining the quantity ratio of two components of a multi-substance mixture
09/11/1979US4167331 Multi-wavelength incremental absorbence oximeter
09/11/1979CA1062351A1 Colour recognition system
09/11/1979CA1062035A1 Spectroscopic temperature measurement
09/04/1979CA1061593A1 Two-beam colorimeter
08/1979
08/28/1979US4165938 Refractively scanned interferometer
08/21/1979US4165180 Automatic computing color meter
08/14/1979US4164652 Process and arrangement for registration of ion-, electron- and light-spectra
08/14/1979US4164374 Spectrophotometer utilizing a solid state source of radiant energy having a controllable frequency spectra characteristic
08/14/1979US4164373 Spectrometer employing optical fiber time delays for frequency resolution
07/1979
07/31/1979CA1059338A1 Textile color analyzer calibration
07/26/1979WO1979000464A1 Apparatus for measuring spectroscopic information from living organisms
07/24/1979CA1058904A1 Apparatus for textile color analysis using reflected light
07/17/1979CA1058417A1 Continuous wave generation of coherent vibrational anti-stokes spectra
07/17/1979CA1058416A1 Multifrequency excitation of gas rotational spectra
07/17/1979CA1058415A1 Monochromatic detection of plural rotational raman spectra generated by multiple frequency excitation
06/1979
06/26/1979CA1057077A1 Throw-in type colorimeter
06/19/1979US4158505 Spectrum analyzing system with photodiode array
05/1979
05/08/1979US4153369 Convertible dual beam differential spectrofluorometer and absorption meter
05/08/1979CA1053929A1 Additive synthesis visual colorimeter
05/08/1979CA1053925A1 Spectrophotometer for dual mode fluorescence analysis
05/01/1979US4152674 Air spaced etalon with mechanism for adjusting parallelism of reflecting surfaces
05/01/1979US4152069 Process and apparatus for ascertainment of the valuation data of gems
04/1979
04/24/1979US4150898 Colorimeter employing primary filter mirrors
04/24/1979CA1053132A1 Apparatus, composition and method for detecting free water in hydrocarbon fuels
04/24/1979CA1053026A1 Generation or coherent rotational anti-stokes spectra
04/10/1979US4149118 Electronic control and regulation system
04/03/1979US4147424 Radiation discrimination system
03/1979
03/27/1979US4146332 Spectrometer with electronic readout
03/20/1979USRE29939 Spectrometer system
03/20/1979CA1050795A1 Diffusion device for compensating for non-uniform photomultiplier cathode sensitivity
03/20/1979CA1050783A1 Digitally settable selective control for speed of wavelength scan or for time base scan
03/20/1979CA1050782A1 System and apparatus for contour plotting the total luminescence spectrum of a sample
03/06/1979US4142797 Common path interferometer
02/1979
02/27/1979US4141954 Reaction tube assembly for automatic analyzer
02/27/1979US4141653 Spectrographic apparatus
02/20/1979US4140399 Monochromator for simultaneous selection and utilization of two wave-lengths
02/20/1979US4140394 Spectrometer sequential readout system
02/20/1979US4140220 Color recognition system
02/20/1979CA1048829A1 Optical beam combining apparatus
02/20/1979CA1048808A1 Simultaneous interferometric transmission of periodic spectral components
02/20/1979CA1048807A1 Simultaneous transmission of periodic spectral components by plural interferometric means
02/13/1979CA1048293A1 Color measuring spectrophotometer
02/06/1979US4138727 System for analyzing time-dependent phenomena
02/06/1979CA1047786A1 Automatic densitometer and method of color control in multi-color printing
01/1979
01/30/1979US4136959 Method for analyzing one ingredient of a three ingredient mixture
01/30/1979US4136954 Imaging apparatus including spatial-spectral interferometer
01/23/1979US4135820 Beam combining apparatus
01/16/1979US4134683 Multispectral imaging and analysis system
01/02/1979US4132940 Apparatus for providing a servo drive signal in a high-speed stepping interferometer
01/02/1979US4132481 Cross-talk balancing circuit for spectrophotometers
01/02/1979CA1045698A1 Method for discriminating high-temperature red heated material
12/1978
12/26/1978US4131506 Method of producing echelette gratings
12/26/1978US4131367 Tristimulus colormeter with internal reflectance compensation
12/19/1978US4130784 Apparatus for compensating ordinate phase lag in a plotting apparatus
12/19/1978CA1044482A1 Optical system to optimize field of view uniformity in a multi-color produce sorter
11/1978
11/28/1978US4127329 Raman scattering system and method for aerosol monitoring
11/21/1978CA1042681A1 Reading device for monochromator
11/14/1978US4125329 Tristimulus colorimeter
11/07/1978US4124297 Ultrafast scanning spectrophotometer
10/1978
10/31/1978US4123172 Comparison type colorimeter
10/31/1978US4123171 Density measuring device
10/31/1978US4123161 Apparatus for and method of examining light
10/31/1978US4123160 Method and apparatus for remotely measuring sub-surface water temperatures
10/31/1978CA1041317A1 Optical instrument for measuring concentrations of polluting gases on long and short geometrical paths
10/17/1978US4120591 Color detection device
10/17/1978US4120586 Method and means for aligning focusing mirrors in an optical spectrometer
10/03/1978CA1039531A1 Spectroscopic temperature measurement
09/1978
09/19/1978US4115006 Arrangement for detecting light sources
09/12/1978US4113385 Transient suppressor network for spectrophotometers and the like
09/12/1978CA1038355A1 Method and means for suppressing ozone generated by arc lamps
09/05/1978US4112335 Rapid pulse ultraviolet light apparatus
09/05/1978US4112028 Light equalizer and method of making same
09/05/1978US4111731 Method of making a light equalizer
09/05/1978US4111560 Method and apparatus for determining a property of a given substance
08/1978
08/29/1978US4110826 Apparatus and process for color-identification
08/22/1978US4108555 Two-beam colorimeter
08/22/1978CA1036834A1 Electronically compensated rotating gas cell analyzer
07/1978
07/25/1978US4102576 Monochromator combining a plurality of light dispersing elements
07/18/1978US4101222 Spectrophotometer sample holder with improved sample viewing apparatus
07/18/1978US4101219 Apparatus for calibrating an optical null spectrophotometer
07/11/1978US4100446 Light source lamp with particular envelope structure to accommodate external magnets
07/11/1978US4100412 Selective multichannel optical time-shared detector for chromatography
07/11/1978US4099873 Arrangement for the spectral analysis of substances
07/11/1978US4099872 Fluorescence spectrophotometer
06/1978
06/27/1978US4097239 Two-flame burner for flame photometric detection
06/27/1978US4097152 Spectrophotometer with visual spectrum display
06/20/1978US4096217 Method of using a particular tristimulus colorimeter in making artificial teeth
06/20/1978US4095900 Optical technique for background suppression
06/20/1978US4095899 Apparatus for double-beaming in fourier spectroscopy
06/20/1978US4095897 Wavelength driving device for use in monochromators