Patents for G01J 1 - Photometry, e.g. photographic exposure meter (22,989)
08/1994
08/31/1994EP0613328A2 Bi-level lighting control system for HID lamps
08/31/1994EP0612997A2 Dark current subtraction with abbreviated reference cycles and recursive filtering
08/31/1994EP0612976A2 Phase modulated interferometer
08/31/1994EP0372018B1 GaAs CAPACITIVE FEEDBACK TRANSIMPEDANCE AMPLIFIER
08/30/1994US5343034 Bias circuit for photodiode having level shift circuitry
08/27/1994CA2115508A1 Bi-level lighting control for hid lamps
08/25/1994DE4305458A1 Phase modulated interferometer, e.g. for length measurement
08/24/1994EP0612185A1 Optical scanning apparatus
08/24/1994EP0611443A1 Thin film pyroelectric imaging array.
08/24/1994CN2175416Y Device for quick measuring distribution of light in a three-D space
08/23/1994USRE34704 Improved pollution detection apparatus
08/23/1994US5341214 NDIR gas analysis using spectral ratioing technique
08/23/1994US5340979 Technique for determining the amplified spontaneous emission noise of an optical circuit in the presence of an optical signal
08/23/1994US5340976 Bandpass photon detector for inverse photoemission spectroscopy
08/23/1994US5340974 Polychromatic source calibration by one or more spectrally filtered photodetector currents
08/20/1994CA2114298A1 Optical scanning apparatus
08/18/1994WO1994018635A1 Flow cytometer
08/18/1994DE4304190A1 Method for measuring and making visible UV rays
08/17/1994EP0611203A1 Thermal detector comprising a thermal insulator of expanded polymer
08/17/1994EP0386123B1 An apparatus for colour control of objects
08/17/1994CN2174686Y Determining instrument for phosphor powder thickness and luminous emittance of fluoresent tube
08/10/1994EP0238574B1 A method and an apparatus for determining an individual s ability to stand exposure to ultraviolet radiation prior to causing a skinreaction, or for determining an individual s ability to become tanned by exposure to ultraviolet radiation.
08/10/1994CN2173952Y Ultraviolet hanging monitoring rack
08/09/1994US5337148 Apparatus for monitoring a guard window of an arc sensor
08/04/1994WO1994017377A1 Detector for human body by use of infrared rays
08/03/1994EP0507805B1 Optical time domain relfectometer
08/03/1994EP0472668B1 Process for determining the condition of a road surface
08/02/1994US5335109 Optical receiver with extended dynamic range
07/1994
07/27/1994CN1090033A 空调机 Air conditioners
07/26/1994US5333144 Diode laser device having a reflecting feedback element, and apparatus using the device
07/26/1994US5332911 Semiconductor component with adiabatic transport in edge channels
07/26/1994US5332904 Broadband radiometer
07/21/1994DE4301177A1 UV radiation detector of high sensitivity
07/20/1994EP0606400A1 Light sensor with diffuser and eye-like response.
07/20/1994EP0606374A1 Rapid assay for gold and instrumentation useful therefor
07/20/1994EP0414831B1 A dielectric bolometer
07/20/1994CN2172467Y Book brightness monitor
07/19/1994US5331452 Optical detector
07/19/1994US5331187 Nickel, chromium, aluminum alloy
07/19/1994US5331168 Reference grade solar ultraviolet band pyranometer
07/19/1994CA1330717C Concentration determination with multiple wavelength flash photometers
07/13/1994EP0606026A1 Controlling method and device for electromagnetic radiation emitting apparatuses
07/13/1994EP0605966A1 X-ray optical element
07/13/1994EP0406342B1 Dewar cryopumping using molecular sieve
07/12/1994US5329350 Measuring laser beam parameters using non-distorting attenuation and multiple simultaneous samples
07/12/1994US5329206 Automatic headlamp dimmer having improved signal discrimination and signal processing
07/06/1994EP0604582A1 Dual-wavelength photometer and fiber optic sensor probe
07/05/1994US5327356 Emissions spectral radiometer/fuel flow instrument
07/05/1994US5327210 Light measurement device
07/05/1994US5327048 Bi-level lighting control system for hid lamps
07/05/1994US5327005 Striped contact IR detector
06/1994
06/29/1994EP0603826A1 Optical distance meter
06/28/1994US5325226 Optical coherent receiver
06/28/1994US5325181 Nulling optical bridge for measurement of changes in reflectivity and/or transmissivity
06/22/1994EP0602464A2 Method and apparatus for recognizing objects
06/22/1994EP0602230A1 Radiation protection arrangement with integrated exposure indicator.
06/21/1994US5323267 High power laser beam sampler
06/21/1994US5323226 Method of measuring light levels and device for implementing this method
06/21/1994US5323005 Method and apparatus for monitoring energy radiant from a dispensed heated material
06/21/1994US5323002 Spatial light modulator based optical calibration system
06/21/1994US5322359 Process and apparatus for measuring laser power
06/14/1994US5321622 Boolean layer comparison slice
06/14/1994US5321501 Method and apparatus for optical imaging with means for controlling the longitudinal range of the sample
06/14/1994US5321494 Subtractive measurement method and apparatus for CRT output intensity measurement
06/14/1994US5321268 For detecting light
06/14/1994US5321261 Normalization technique for photon-counting luminometer
06/13/1994CA2111030A1 Method to identify objects and a device to implement such a method
06/09/1994WO1994012864A1 Apparatus and method of rapidly measuring hemispherical scattered or radiated light
06/09/1994DE4240395A1 Electromagnetic radiation detector, e.g for flame detection - includes opto-electronic sensor, and evaluates soiling level of transparent cover plate to correct sensor element output signal
06/09/1994DE4235225A1 Sensoranordnung zur Überwachung der Konvertierungsrate eines Abgaskatalysators Sensor system for monitoring the conversion rate of a catalytic converter
06/08/1994EP0600636A1 Self-calibrated power meter
06/08/1994CN1087716A Spectral luminous efficiency function and photometric meter of visible light
06/07/1994US5319442 Optical inspection probe
06/01/1994EP0599024A1 A luminous flux measuring apparatus
06/01/1994EP0550542B1 Device for the qualitative and/or quantitative determination of the compositon of a sample to be analysed
06/01/1994EP0477300B1 Colour monitoring
06/01/1994DE4239451A1 UVB radiation meter for measuring intensity of UVB radiation - detects radiation exposure, e.g. using photodiode and selenium cell, e.g. in arm band for protection against human tissue damage
05/1994
05/31/1994US5317165 Apparatus for detecting the presence and the quality of a flame by detecting and analyzing electromagnetic radiation of different wavelengths
05/26/1994WO1994011723A1 Gas detection devices
05/26/1994WO1994011714A1 Multiple discrete analyzer test apparatus and method
05/26/1994WO1994011703A1 Pyrheliometric sensor
05/26/1994CA2149788A1 Gas detection devices
05/25/1994EP0598102A1 Method for scanning photodiodes
05/25/1994EP0506725B1 Process and device for measuring laser power
05/25/1994EP0481016B1 Avalanche photodiode quenching circuit
05/25/1994CN2166485Y Detecter for motion body
05/24/1994US5315375 Sensitive light detection system
05/24/1994US5315128 Photodetector with a resonant cavity
05/24/1994US5315106 Apparatus for evaluating beacon lights, in particular on runways and taxiways for airplanes having a light diffusing reflection box
05/18/1994EP0597771A1 Optical beam centralisation adjusting device, application to the introduction of the beam in an optical fibre
05/17/1994US5313542 Apparatus and method of rapidly measuring hemispherical scattered or radiated light
05/17/1994US5313063 Forward looking infra-red apparatus
05/11/1994WO1994010755A1 Electronic component
05/11/1994EP0596488A1 Liquid-crystal sunglasses indicating overexposure to UV-radiation
05/11/1994EP0596329A1 Pyroelectric infrared detector and method of fabricating the same
05/11/1994EP0596231A1 Method and device for turbidity measurement in aqueous media
05/11/1994DE4336864A1 Wideband radiometer, esp. for ultraviolet light - contains optically integrating sphere with one detector of visible and UV light and one of visible light only
05/11/1994DE4329665C1 EM radiation sensor for monitoring UV radiation dosage - has lens system focussing received radiation onto detector providing electrical signal
05/10/1994US5311369 Method for suppressing solar background in a receiver of laser light
05/05/1994DE4236644A1 Elektronisches Bauelement Electronic component