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 1 - Photometry, e.g. photographic exposure meter
Patents for G01J 1 - Photometry, e.g. photographic exposure meter (22,989)
06/1989
06/07/1989EP0319345A2 High power laser beam intensity mapping apparatus
06/06/1989US4837431 Variable phase time delay and signal aggregation system and method for achieving constant spatial resolution in scanning detection instruments
06/06/1989CA1255374A1 Infra-red radiation detector
06/01/1989WO1989004973A1 A method to measure the angle of incidence for radiation and a detector to carry out the method
06/01/1989WO1989004972A1 A method to detect radiation and measure its angle of incidence and a detector arrangement to carry out the method
05/1989
05/30/1989US4835381 Wide field of view radiant energy receiver
05/26/1989EP0219531A4 Infrared electronic thermometer and method for measuring temperature.
05/24/1989DE3738480A1 Method and device for measuring the intensity of a UV-laser beam
05/23/1989US4833385 Method for the phase synchronization of step-drive controlled equipment
05/23/1989US4833332 Scanning fluorescent detection system
05/23/1989US4832491 Method of and apparatus for spectroscopically analyzing samples
05/23/1989US4832490 Photometer
05/23/1989US4832484 Apparatus for determining the concentration of a light-absorbing material in blood
05/18/1989WO1989004528A1 Real time adaptive round discrimination fire sensor
05/18/1989WO1989004506A1 A reprographic camera system
05/18/1989WO1989004468A1 An apparatus for colour control of objects
05/17/1989EP0315939A2 Color signature sensor
05/17/1989CN1032989A X-ray photocathode, image enhancer and imaging instrument
05/16/1989US4831621 Device for analog multiplexing by charge transfer devices
05/16/1989US4831319 Method for the phase synchronization of step-drive controlled equipment
05/16/1989US4831264 Method for measuring the concentration of adhesive on a coating layer surface
05/16/1989US4831257 Gate coupled input circuit
05/16/1989US4830504 Gloss gauge
05/16/1989US4830501 Method of classifying color originals and apparatus thereof
05/16/1989CA1254072A1 Selective photoresponsive sensing circuit
05/16/1989CA1254056A1 Analytical spectrophotometer
05/11/1989DE3736673A1 Infrared analyser
05/10/1989EP0315259A1 Electronic correction of photodiode radiant sensitivity
05/09/1989US4829597 Satellites to and from submarines
05/09/1989US4829382 Automatic aperture control of a television camera
05/09/1989US4829187 UV-ray sensitive composition and element for measuring UV-ray dose
05/09/1989US4828384 High power laser beam intensity mapping apparatus
05/03/1989EP0313931A1 Circuit arrangement for an infra-red detector
05/02/1989US4827133 Infrared space surveillance detector circuit
05/02/1989US4827120 Radiation sensor whereby radiation is diffused through the material
05/02/1989US4827119 Illuminant discriminator
05/02/1989US4826316 Radiation detection apparatus
05/02/1989US4825689 Sensing device
04/1989
04/27/1989DE3833899A1 Spectral-photometric device for measuring distance
04/26/1989EP0312765A2 Nulling optical bridge for contactless measurement of changes in reflectivity and/or transmissivity
04/25/1989US4825407 Method and circuit for controlling single chip microcomputer
04/25/1989US4825078 Radiation sensor
04/25/1989US4825075 Non-electronic gain control
04/25/1989US4824244 Sensor for mixing ratio of gasoline and alcohol or the like
04/20/1989WO1989003524A1 Solution loading analyzer
04/20/1989WO1989003193A1 Apparatus and method for use in pulse oximeters
04/19/1989EP0312296A2 Device and method for quantum nondemolition measurements using parametric oscillation
04/18/1989US4822168 Spectroscopic photometer for flow through sample absorption
04/18/1989CA1252644A1 Color sensor
04/12/1989EP0172405B1 Circuitry for a portable test strip reading instrument
04/12/1989CN2035893U Electronic light measuring device for photography
04/12/1989CN2035879U Light power metre for light sensitive hardening cold light lamp
04/12/1989CN1003888B Achromatic standard board for reflection spectrum measurement
04/11/1989US4820047 Laser heterodyne apparatus for measuring optical power
04/11/1989CA1252505A1 Middle-infrared imaging device
04/06/1989WO1989003118A1 Dark signal compensation for diode arrays
04/05/1989EP0310353A2 High gain thin film sensor
04/05/1989CN2035496U Synchronous photographic photometric device
04/04/1989US4819246 Single frequency adapter
04/04/1989US4818883 Luminometer apparatus
04/04/1989US4818882 Photoacoustic gas analyzer
04/04/1989US4818491 To determine proper sunscreen lotion to apply
04/04/1989US4817413 Method of using an opto-acoustic apparatus for measuring concentration of gas
04/04/1989CA1252172A1 Smoke detection apparatus
03/1989
03/29/1989EP0309125A2 Uninterruptible power supply
03/29/1989EP0308763A2 Method and apparatus for measuring the radiation power of a laser beam used particularly for inscriptions
03/29/1989EP0308504A1 Response-rationing angle of arrival sensor.
03/28/1989US4815848 Device for the individual adjustment of the intensity of several spectral lamps
03/23/1989WO1989002590A1 Enhanced system for transmission loss comparison
03/23/1989WO1989002585A1 Measuring light intensity variations
03/23/1989WO1989002248A1 Measuring head movements
03/23/1989DE3730257A1 Messgeraet fuer spektralcharakteristiken einer laserstrahlung Meter for spectral characteristics of laser radiation
03/22/1989EP0307911A2 Signal discriminator
03/22/1989EP0307483A1 Light signal generator and light power meter calibration system using the same
03/21/1989US4814605 Entrance system for a photodetector having a 180 degree image angle and detector provided therewith
03/21/1989US4814602 For measuring radiation
03/21/1989US4814598 Optical wavelength analyzer and image processing system utilizing Josephson junctions
03/15/1989EP0307233A2 Photoelectric converting apparatus
03/14/1989US4813006 Radar system
03/14/1989US4812882 Contrast monitor
03/14/1989US4812655 Prism cold shield
03/09/1989WO1989002158A1 Optical wavelength analyzer and image processing system utilizing josephson junctions
03/09/1989WO1989002068A1 Method and apparatus for detecting the wavelength of a laser beam
03/09/1989WO1989001635A3 Variable phase time delay and signal aggregation system and method for achieving constant spatial resolution in scanning detection instruments
03/08/1989EP0306395A1 Light detection circuit
03/08/1989EP0306337A2 Spectrophotometer
03/08/1989EP0306124A2 Device for receiving a radiated electromagnetic signal arriving at a substantially horizontal surface
03/01/1989EP0304993A2 Coupling arrangement for directing a light beam emitted through the end of a light guide onto the light-sensitive area of a photodiode of a measuring device
03/01/1989EP0304795A2 Device for checking of coated and uncoated foils
03/01/1989EP0304664A2 Detector for aligning high power lasers
03/01/1989EP0304560A2 Photodetector having cascaded photoelements
02/1989
02/28/1989US4808812 Composite type light sensor having plural sensors with different light receiving angle optical characteristics
02/28/1989US4807993 Method and apparatus for measuring light by frequency modulation using a time-variable synchronous rectification signal
02/28/1989US4807950 Method for impressing gratings within fiber optics
02/28/1989US4807630 Apparatus and method for use in pulse oximeters
02/23/1989WO1989001635A2 Variable phase time delay and signal aggregation system and method for achieving constant spatial resolution in scanning detection instruments
02/23/1989WO1989001612A1 Optical detection system
02/22/1989EP0304230A2 Optical measurement method
02/22/1989EP0303707A1 Optical measurement method and apparatus therefor in automatic analyzer
02/22/1989EP0303695A1 Method and apparatus for multiplexing signals from electromagnetic radiation detectors.
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