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