| Patents for G01J 1 - Photometry, e.g. photographic exposure meter (22,989) |
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| 09/23/1992 | CN2117012U Brightness adjusting desk lamp with indicator |
| 09/22/1992 | US5149983 Method and apparatus for measuring the concentration of at least one material in a fluid medium mixed materials |
| 09/22/1992 | US5149972 Two excitation wavelength video imaging microscope |
| 09/22/1992 | US5149182 Optical filter for an optical measurement instrument |
| 09/16/1992 | EP0503011A1 Process for determining the concentration of substances, device for implementing the process, use of the process for changing the concentration of a substance contained in the fluid and plant therefor |
| 09/16/1992 | CN2116203U Monitor of optimum lighting power |
| 09/15/1992 | US5148233 Optical attenuator and optical power meter calibration systems with optical-pulse conversion and averaging |
| 09/15/1992 | US5148217 Electrostatographic copier/printer densitometer insensitive to power supply variations |
| 09/15/1992 | US5148023 Ultraviolet ray measuring apparatus for predicting sunburn level and for obtaining spf values of cosmetics |
| 09/09/1992 | EP0502386A2 Optical transducer with widened dynamic range |
| 09/08/1992 | US5146076 Input screen for radiological image intensifier tube utilizing an anti-reflecting layer |
| 09/01/1992 | US5144498 Variable wavelength light filter and sensor system |
| 09/01/1992 | US5144397 Light responsive semiconductor device |
| 08/26/1992 | EP0458900A4 Reservoir fiber optic chemical sensors |
| 08/25/1992 | US5142286 Read-out photodiodes using sigma-delta oversampled analog-to-digital converters |
| 08/25/1992 | US5142138 Image reader including plural light stopping plates with apertures |
| 08/25/1992 | US5141330 Thin-film quadrant temperature sensor for use in a system to control the alignment of a CO2 laser beam |
| 08/25/1992 | US5141312 Fiber optic photoluminescence sensor |
| 08/20/1992 | WO1992014233A1 Dual function contrast indicating arrangement in photoelectric sensing systems |
| 08/20/1992 | WO1992014127A1 Centroiding method for photon counting detectors |
| 08/18/1992 | US5140381 Optical detection device with variable detection threshold |
| 08/18/1992 | US5140168 Turbidimeter signal processing circuit using alternating light sources |
| 08/18/1992 | US5140160 Collector for storage phosphor imaging system |
| 08/18/1992 | US5139331 Radiometer including means for alternately measuring both power and energy with one pyroelectric detector |
| 08/13/1992 | DE4111844C1 Machining workpiece using laser beam - in which radiation detectors around beam receive intensity moulded edge rays and emit corresp. signals |
| 08/12/1992 | EP0498429A1 Improved target detector eliminating in-range sensitivity |
| 08/12/1992 | EP0489840A4 Shutterless optically stabilized capnograph |
| 08/12/1992 | EP0308504B1 Response-rationing angle of arrival sensor |
| 08/11/1992 | US5138485 Optical filter for measurement of combustion gases and method of manufacturing |
| 08/11/1992 | US5138191 Photoemitter |
| 08/11/1992 | US5138149 Apparatus and method for monitoring radiant energy signals with variable signal gain and resolution enhancement |
| 08/11/1992 | US5138146 Image position sensitive device with multiple output electrodes |
| 08/11/1992 | US5137662 Method and apparatus for production of three-dimensional objects by stereolithography |
| 08/05/1992 | EP0497434A2 A dual beam full spectrum multichannel spectrophotometer |
| 08/04/1992 | US5136326 Photometry device for camera |
| 08/04/1992 | US5136168 Atomic resonance filter detector employing inert buffer gas |
| 08/04/1992 | US5136154 Method and system for photoconductive detector signal correction |
| 08/04/1992 | CA1305879C Color signature sensor |
| 07/29/1992 | EP0390801B1 A reprographic camera system |
| 07/29/1992 | CN2111354U Sensitive glass window |
| 07/28/1992 | US5134671 Monolithic integrated optical amplifier and photodetector |
| 07/28/1992 | US5134474 Method of compensating scattered characteristics of outputs of an infrared detector of multiple-element type |
| 07/28/1992 | US5134276 Noise cancelling circuitry for optical systems with signal dividing and combining means |
| 07/23/1992 | WO1992012403A1 Device for measuring solar uv-b radiation |
| 07/23/1992 | DE4101389A1 Semiconductor infrared detector - is used as far infrared detector utilising adiabatic transport around detector edges |
| 07/22/1992 | EP0495413A1 Light detecting apparatus having a diffraction grating |
| 07/22/1992 | EP0333751B1 Avalanche photodiode quenching circuit |
| 07/22/1992 | EP0271519B1 Silicone dielectric gel cryogenic detector interface |
| 07/21/1992 | US5132530 Light detector based on fluorescent dyes |
| 07/21/1992 | US5132528 Arrangement for measuring laser power incorporating a first partially transmitting mirror and a second partially transmitting mirror positioned by 90° degrees |
| 07/16/1992 | DE4204976A1 Measuring unit for measuring voltage of differing strength light source - consists of two glow lamps in slow alternating time base oscillation which can be strongly accelerated using voltmeter or micrometer |
| 07/15/1992 | CN2110215U High-precision nutomatic measurement illuminance meter |
| 07/15/1992 | CN1017488B Infrared receiver with electric colour split |
| 07/14/1992 | US5130529 Semiconductor optical position sensing device |
| 07/14/1992 | US5130064 Method of making a three dimensional object by stereolithography |
| 07/14/1992 | US5129726 Apparatus for color control of objects |
| 07/09/1992 | WO1992011557A1 Split v-roof mirror collector |
| 07/09/1992 | WO1992011518A1 Device for measuring radiation and the photochemical characteristics of a gas |
| 07/08/1992 | EP0493908A1 Monitoring the condition of a rotary tool |
| 07/07/1992 | US5128707 Rear light detecting apparatus in a camera |
| 07/07/1992 | US5127724 Optical power meter |
| 07/02/1992 | DE4041851A1 Measuring power of optical beam using quartz oscillator to measure temp. - determining difference in reactance between temp.-measuring quartz exposed to light beam and quartz not exposed to light beam |
| 07/02/1992 | DE4041769A1 Optical sensor for evaluating incident light - has lens body with mutually relatively adjustable concave and convex ellipsoidal surfaces |
| 07/02/1992 | DE4041130A1 Solid-state laser generating single frequency and visible, pulsed beams - comprises laser diode pumped solid-state laser with electronic supply and regulating unit as well as optical head with adjusters |
| 07/01/1992 | EP0493256A1 Proximity detector and method of sectorially detecting a target used as ignition device for an explosive charge |
| 07/01/1992 | EP0492181A2 Remote fired RF getter for use in metal infrared detector Dewar |
| 07/01/1992 | EP0491822A1 An optical detector. |
| 06/30/1992 | US5126779 Method and apparatus for successively generating photometric values |
| 06/30/1992 | US5126661 Optical probing method and apparatus |
| 06/30/1992 | US5126570 Sensor and method for measuring alcohol concentration in an alcohol-gasoline mixture |
| 06/30/1992 | US5125744 Optical measurement device |
| 06/30/1992 | US5125381 Misfire detection |
| 06/29/1992 | CA2058281A1 Process and device for probing the sectoral proximity of a target, and ammunition using this device |
| 06/24/1992 | EP0491210A2 Intensity detector |
| 06/24/1992 | CN2108287U Integral power tester for infrared remote controller |
| 06/24/1992 | CN2108286U Hand type digital photometer for flasher |
| 06/23/1992 | US5124553 Optical measurement method using stacked germanium and silicone detectors |
| 06/23/1992 | US5124549 Automatic headlamp dimmer with optical baffle |
| 06/23/1992 | US5124547 Color separation apparatus for reducing lag in photosensors using color auxiliary light biasing |
| 06/23/1992 | US5123739 Method of monitoring cement kiln and the apparatus therefor |
| 06/23/1992 | US5123738 Standard substance for optical calibration and method of making same |
| 06/23/1992 | US5123734 Apparatus and method for calibrating and normalizing a stereolithographic apparatus |
| 06/19/1992 | WO1992011548A1 Luminance regulation |
| 06/19/1992 | CA2075990A1 Luminance regulation |
| 06/17/1992 | EP0490510A2 Two-color focal plane array sensor arrangement |
| 06/17/1992 | EP0490166A1 Quick cooldown/low distortion hybrid focal plane array platform for use in infrared detector dewar packages |
| 06/17/1992 | EP0489840A1 Shutterless optically stabilized capnograph |
| 06/17/1992 | CN2107651U Multi-function flash light detecting meter |
| 06/16/1992 | US5122668 Infrared detection element |
| 06/16/1992 | US5122651 Device for measuring luminance of fluourscent screen of cathode ray tube |
| 06/16/1992 | CA1303382C Optical detector storage effects reduction |
| 06/11/1992 | WO1992009883A1 Method and system for verifying substrate machining |
| 06/11/1992 | CA2055021A1 Two-color focal plane array sensor arrangement |
| 06/10/1992 | EP0489525A2 Improvements relating to optical sensing systems |
| 06/10/1992 | EP0489399A2 Displacement detector |
| 06/10/1992 | CN1016998B Method and device for measuring electric field distribution of semiconductor laser in working order |
| 06/09/1992 | US5120975 Gas turbine flame detection system with reflected flame radiation attenuator |
| 06/09/1992 | US5120961 High sensitivity acousto-optic tunable filter spectrometer |
| 06/07/1992 | CA2056643A1 Optical sensing systems |
| 06/03/1992 | EP0488229A2 Semiconductor device and method for production thereof |