Patents for G01J 3 - Spectrometry; Spectrophotometry; Monochromators; Measuring colours (33,177)
11/1984
11/27/1984US4484817 Colorimetric chemical analyzing apparatus
11/27/1984US4484815 For producing a monochromatic light beam
11/20/1984US4483590 Adjustable slit assembly for a monochromator
11/13/1984US4482966 Detector for chromatographs
11/13/1984US4482248 Interferometer with a tunable optical resonator incorporating a monomode optical fibre and application to filtering and spectography
11/13/1984US4482245 Apparatus for measuring the color of a brilliant-cut diamond
11/08/1984WO1984004402A1 Liquid crystal tuned birefringent filter
11/07/1984EP0124448A2 Device for controlling the rotation of the dispersive device of a monochromator
11/06/1984US4481653 Tunable X-ray monochromator using transmission gratings
11/06/1984US4480914 Vibration compensating interferometer mirror drive system
11/06/1984US4480913 Fine positioning beam director system
10/1984
10/24/1984EP0122441A2 Spectroanalysis system
10/24/1984EP0122364A1 A mirror for a spectrophotometer
10/23/1984US4478513 Optical system for a spectrophotometer
10/17/1984EP0121714A2 Automatic wavelength calibration correction system
10/16/1984US4477190 Multichannel spectrophotometer
10/10/1984EP0120870A1 Apparatus for carrying out spectral analysis.
10/03/1984EP0120526A2 Sine bar mechanism and monochromator and spectrophotometer including such a sine bar mechanism
10/02/1984CA1175255A1 Spectrophotometer gas control system
09/1984
09/25/1984US4473295 Parabolic focusing apparatus for optical spectroscopy
09/19/1984EP0118919A2 Method and apparatus for converting spectral and light intensity values directly to digital data
09/19/1984EP0118733A2 Spectroanalysis
09/19/1984EP0118529A1 Apparatus and method for photoluminescent analysis
09/19/1984EP0118504A1 Image monochromator.
09/19/1984EP0118492A1 Vibration compensating interferometer mirror drive system
09/13/1984WO1984003560A1 Dynamic mirror alignment control
09/13/1984WO1984003558A1 Mirror scan velocity control
09/11/1984US4471220 System for monitoring trace gaseous ammonia concentration in flue gases
09/11/1984US4470699 Micro-column plasma emission liquid chromatograph
09/04/1984US4470105 Optical apparatus
09/04/1984US4469441 Scanning monochromator system with direct coupled dispersing element-electromagnetic drive transducer assembly
09/04/1984US4469397 Fiber optic resonator
09/04/1984CA1173663A1 Optical system for a spectrophotometer
08/1984
08/28/1984US4468775 Optical selector device using a Fizeau wedge for reflection
08/28/1984US4468121 Spectrophotometric analyzer having dual monochromators
08/22/1984EP0116321A2 Infrared spectrometer
08/21/1984US4467213 Source assembly for gas analysis instruments
08/21/1984US4466699 Curved tunable Fabry-Perot filter
08/21/1984US4466544 Photoelectric detection device for color sorting apparatus
08/21/1984CA1173082A1 Pressurized fluid jetting device in color sorting apparatus
08/15/1984EP0116011A1 Process for reproducing at least one coloured surface and means for producing the same
08/15/1984EP0115902A2 Spectrophotometer
08/15/1984EP0059706B1 Dispersive optical device
08/14/1984US4465940 Electro-optical target detection
08/14/1984CA1172466A1 Apparatus useful for positioning a light filter
08/08/1984EP0115294A2 Photometric device
08/08/1984EP0115122A1 Automatic background brightness control device for colour sorting apparatus
08/08/1984EP0058667B1 Device for dividing a laser beam
08/07/1984US4464677 Method and circuit arrangement for partial recorrection of color recognition spaces in color recognition
08/07/1984US4464054 Colorimeter instrument with fiber optic ring illuminator
08/07/1984US4464051 Spectrophotometer
08/01/1984EP0114515A2 Method and apparatus for colour recognition
07/1984
07/31/1984US4463260 Flame detector
07/31/1984US4462689 Wide band scanning monochromator
07/31/1984US4462688 Spectrally tailored wafer chuck shaped light meter
07/31/1984US4462687 Apparatus for spectral analysis of a broad beam of radiation using a dispersive element interposed between two modulators
07/25/1984EP0114053A2 Device for determining the angle of incidence of optical radiation
07/24/1984US4461568 Assessing the color of gemstones and the like
07/24/1984CA1171298A1 Process and apparatus for the colorimetric analysis of printed material
07/18/1984EP0113455A1 Apparatus for counting the number of fringe changes of a varying interference fringe pattern
07/17/1984CA1171131A1 Lamp circuit
07/04/1984EP0112375A1 Method for the measurement of the difference in colour contents of samples.
07/03/1984US4458323 Method of performing measurements and error analysis of the measurements
06/1984
06/19/1984US4455097 Spectrophotometer
06/19/1984US4455088 Monochromator with concave grating
06/19/1984US4455087 Monochromatic imaging apparatus
06/13/1984EP0110262A2 Optical readhead
06/13/1984EP0110201A2 Apparatus for providing radiation of controlled spectral composition
06/12/1984US4453826 Double monochromator
06/12/1984CA1169140A1 Method and apparatus for measuring and controlling the color of a moving web
06/05/1984US4453225 Counteracting the effect of phase shift changes between two quantities in extracting their ratio
05/1984
05/30/1984EP0109886A1 Acousto-optical device for analysing spectra
05/30/1984EP0109686A2 Color sensor
05/30/1984EP0109536A1 Apparatus for absorptiometric analysis
05/22/1984US4449821 Process colorimeter
05/22/1984US4449819 Arrangement for determining the concentration of a substance in a mixture of substances
05/15/1984US4448533 Apparatus for ensuring the quality of printed products
05/15/1984US4448530 Spectrophotometer
05/15/1984US4448529 Spectral analysis of a beam of radiation
05/08/1984US4446719 Electroreflectance vibrational spectroscopy
05/02/1984EP0107410A1 Method of photometric measurement
04/1984
04/25/1984EP0106431A2 Infrared source element
04/25/1984EP0106380A2 Atomic absorption spectrophometer apparatus
04/25/1984EP0106135A2 Method and device for measuring the brightness of a colour
04/17/1984CA1165586A1 Method and means for separating radiation of one wavelength from radiation of another wavelength
04/11/1984EP0105178A2 Spectroradiometer and spectrophotometer
04/10/1984US4441815 Self-modulating spectrometer
04/10/1984US4441814 Spectrograph providing spectral reference marks
04/04/1984EP0104333A2 Method and apparatus for simultaneously recording multiple FT-IR signals
03/1984
03/29/1984WO1984001217A1 Method for determining the binder content in a fibrous mat
03/29/1984WO1984001211A1 Vibration compensating interferometer mirror drive system
03/27/1984US4439347 Cobalt ammonium sulfate and sulfuric acid
03/27/1984US4439038 Method and apparatus for measuring and controlling the color of a moving web
03/21/1984EP0102970A1 Opto-geometric device for colorimetric and spectrophotometric apparatuses
03/20/1984US4438370 Lamp circuit
03/20/1984US4437762 Control of detector gain hysteresis in a single beam spectrophotometer
03/20/1984CA1164093A1 Reflected color simulator
03/15/1984WO1984001029A1 Apparatus and method for photoluminescent analysis
03/13/1984CA1163463A1 Device for pulse dosage of liquid microsamples into the flame of atom absorption spectrophotometer
03/07/1984EP0102272A1 Method of focusing spherical holographic diffraction gratings working by reflections; dispersive objectives and spectrometers for application of the same