| Patents for G01J 1 - Photometry, e.g. photographic exposure meter (22,989) |
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| 10/11/1988 | US4777661 Apparatus and method for self-referencing and multiplexing intensity modulating fiber optic sensors |
| 10/06/1988 | WO1988007700A1 Light signal generator and light power meter calibration system using the same |
| 10/06/1988 | WO1988005984A3 Method and apparatus for multiplexing signals from electromagnetic radiation detectors |
| 10/05/1988 | EP0285400A2 Laser power monitor |
| 10/05/1988 | CN86108608B Rare-earth plastic intensifying screen |
| 10/04/1988 | US4775794 Process and apparatus for measurement of light-absorbable components dissolved in liquids |
| 10/04/1988 | US4775347 Method of installing a window member of an infrared detector |
| 10/04/1988 | US4775237 Electro-optical detection system |
| 10/04/1988 | US4774834 Engine Sensors |
| 09/28/1988 | EP0284090A2 Method of checking the workmanship of paint coating |
| 09/28/1988 | CN88102056A Ultraviolet radiation lumeter |
| 09/27/1988 | US4774401 Light measuring device variably controlled according to focus mode selection |
| 09/27/1988 | US4773761 Photoelectric colorimeter |
| 09/27/1988 | CA1242335A1 Spectrophotometer with very high resolution |
| 09/22/1988 | WO1988007222A1 Systems for the visualization of exposure to ultraviolet radiation and for the utilization of ultraviolet radiation to effect color changes |
| 09/21/1988 | EP0283264A2 Pyroelectric infrared sensor |
| 09/20/1988 | US4773097 Image analyzing apparatus |
| 09/20/1988 | US4772772 Process for the supervision of the machining process using a high-power energy source, in particular a laser, and machining optical system for carrying out the same |
| 09/20/1988 | US4772124 Probe for a radiometer |
| 09/20/1988 | CA1242094A1 Method and apparatus for enhanced detection of electromagnetic signals |
| 09/15/1988 | DE3706986A1 Method for evaluating the UV component in the flame spectrum by means of an electronic flame detector |
| 09/14/1988 | EP0282414A2 Chopper wheel alignment device |
| 09/14/1988 | EP0282295A2 Internal Combustion engine control |
| 09/14/1988 | EP0282029A2 Measuring device for the electromagnetic radiation from the half-space or from the space |
| 09/14/1988 | CN88100938A Method of optical determination for apparatus of automatic analysis and their apparatus |
| 09/14/1988 | CN87206546U Light-spot display type exposure meter for photography |
| 09/13/1988 | US4771267 Analog offset compensation technique |
| 09/13/1988 | US4770538 Chopper wheel alignment device |
| 09/13/1988 | US4770536 Of a specimen |
| 09/13/1988 | US4770535 For remotely sensing environmental effects |
| 09/13/1988 | US4770129 Sensor for mixing ratio of gasoline and alcohol |
| 09/08/1988 | DE3705915A1 Circuit arrangement for forming the difference between two photoelectric currents |
| 09/07/1988 | WO1988006718A1 Atmospheric optical calibration system |
| 09/07/1988 | EP0281337A2 A detector device for mixing ratio for petrol and alcohol or the like |
| 09/07/1988 | EP0281011A2 Edge-illuminated impurity band conduction detector arrays |
| 09/07/1988 | CN87211282U Iris diaphragm digital showing exposure meter |
| 09/06/1988 | US4769666 Apparatus for determining amount of flash |
| 09/06/1988 | US4769545 Motion detector |
| 09/06/1988 | US4769534 Optical detector with storage effects reduction |
| 09/06/1988 | CA1241722A1 Infrared intrusion detector |
| 08/30/1988 | CA1241212A1 Readhead with reduced height sensitivity |
| 08/25/1988 | WO1988006286A1 Optical measurement method and apparatus therefor in automatic analyzer |
| 08/25/1988 | WO1988006279A1 Ultraviolet radiation detector |
| 08/24/1988 | EP0279743A2 Temperature compensated moisture sensor |
| 08/24/1988 | EP0279191A2 Device for contactless measurement of remission |
| 08/24/1988 | EP0278956A1 Apparatus for measuring properties of a laser emission. |
| 08/23/1988 | US4766307 Semiconductive radial photodetector and apparatus comprising such a detector |
| 08/23/1988 | US4765738 Method and apparatus of measuring frequency response in an optical receiving system |
| 08/17/1988 | EP0278182A2 Radiant energy receiving and directing apparatus and method |
| 08/17/1988 | EP0278181A2 Diffused surface radiant energy receiver |
| 08/16/1988 | US4764984 Fluorescent sensors for infrared free-space links in data communication systems |
| 08/16/1988 | CA1240762A1 Electrical controller having a window discriminator |
| 08/11/1988 | WO1988005984A2 Method and apparatus for multiplexing signals from electromagnetic radiation detectors |
| 08/10/1988 | EP0277720A2 Continuously rotating grating rapid-scan spectrophotometer |
| 08/10/1988 | EP0277185A1 Ultra-violet flame detector with analog output |
| 08/09/1988 | US4763013 Backup protection switch to prevent reverse power flow in a UPS |
| 08/09/1988 | US4763011 Disulfide in solvent |
| 08/09/1988 | US4762412 Chromatoscanner for scanning a specimen surface |
| 08/04/1988 | DE3710486C1 Vorrichtung zur Messfleckmarkierung bei einem Strahlungsmessgeraet Device for sighting in a radiation measuring |
| 08/03/1988 | EP0277005A2 High energy laser beam replica producing method and system |
| 08/03/1988 | EP0276919A1 Sun heat radiation sensor |
| 08/03/1988 | EP0276598A1 Charge transfer device analogous multiplexer and its use in reading signals from a photodetector matrix |
| 08/02/1988 | US4761676 Fault detection and reset in surface reflectance meter |
| 08/02/1988 | US4761549 A linear photo-responsive circuit |
| 08/02/1988 | CA1240000A1 Sensor integrator system |
| 07/27/1988 | EP0275334A1 System for monitoring material dispensed onto a subtrate |
| 07/27/1988 | EP0275302A1 Correlated sampling amplifier. |
| 07/26/1988 | US4760537 System for analyzing laser beam profiles |
| 07/26/1988 | US4760272 Weather identification system |
| 07/26/1988 | US4760257 Apparatus for measuring properties of a laser emission |
| 07/26/1988 | US4759598 Apparatus for the positioning of ends of flexible light-conducting elements |
| 07/20/1988 | EP0275150A2 Infrared-radiation detector device |
| 07/20/1988 | CN86108608A Rare-earth plastic intensifying screen |
| 07/19/1988 | US4758727 Method and apparatus for the measurement of low-level laser-induced fluorescence |
| 07/19/1988 | US4758086 Apparatus for measuring spectral power of a light beam |
| 07/14/1988 | WO1988005243A1 Analog offset compensation technique |
| 07/14/1988 | WO1988004034A3 Avalanche photodiode quenching circuit |
| 07/13/1988 | EP0274403A2 Light absorption analyser |
| 07/13/1988 | EP0274275A2 Detection of electromagnetic radiation |
| 07/13/1988 | EP0273936A1 Pellicle laser power limiter |
| 07/12/1988 | US4757210 Edge illuminated detector arrays for determination of spectral content |
| 07/12/1988 | US4757197 Semiconductor laser and detector device |
| 07/12/1988 | CA1239225A1 Multiple wavelength light photometer for non-invasive monitoring |
| 07/12/1988 | CA1239037A1 Apparatus for sensing and displaying the temporal properties of a plurality of light signals ocurring at different locations simultaneously |
| 07/06/1988 | CN87107898A Optical detector storage effects reduction |
| 07/05/1988 | US4755687 System and method for detecting flames |
| 07/05/1988 | US4755676 Low temperature assembly |
| 07/05/1988 | US4755665 Light detector and signal processing circuit |
| 06/30/1988 | WO1988004833A1 Infrared detector with improved heat dissipation |
| 06/29/1988 | EP0272731A2 Thermal radiation detector |
| 06/29/1988 | EP0272722A1 A rectilinear radiation transducer |
| 06/29/1988 | CN87214585U 显微镜光度计 Microscope photometer |
| 06/28/1988 | US4754149 Optical precipitation gauge which detects scintillations produced by particle movement in the light beam |
| 06/22/1988 | EP0272055A2 Luminometer apparatus and method |
| 06/22/1988 | EP0271522A1 Backside contact blocked impurity band detector |
| 06/22/1988 | CN87207464U Digital expometer |
| 06/21/1988 | US4752768 Intruder detector with anti-obscuring means |
| 06/16/1988 | WO1988004414A1 Radiation meters |
| 06/15/1988 | EP0271109A2 Respiratory CO2 detector circuit with high quality waveform |
| 06/15/1988 | EP0270567A1 Infrared imager. |