Patents for G01J 1 - Photometry, e.g. photographic exposure meter (22,989) |
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07/15/1980 | US4212535 Ultraviolet radiation dosimeter |
07/10/1980 | WO1980001442A1 Supervision device with an optical detector for electrical arcs in a circuit-breaker |
07/10/1980 | WO1980001420A1 Radiographic apparatus and method for monitoring film exposure time |
07/09/1980 | EP0013025A1 Long-term integrator for a low level voltage source |
07/09/1980 | EP0012818A1 Device for separating an optical signal from the ambient light |
06/25/1980 | EP0012174A1 Light measuring apparatus |
06/24/1980 | CA1080336A1 Infrared radiation sensitive image pick-up device |
06/10/1980 | US4207533 Electronic photometer |
06/03/1980 | US4206454 Two channel optical flame detector |
05/27/1980 | US4205231 Device for light flux attenuation, especially for additional quenching of scintillations at radionuclide activity determination |
05/20/1980 | US4203668 Digital exposure meter |
05/06/1980 | US4201916 Ultraviolet radiation sensor for use in liquid purification system |
05/06/1980 | US4201472 Apparatus for converting light signals into digital electrical signals |
04/29/1980 | US4200934 Circuit arrangement for correcting digital signals |
04/15/1980 | US4198564 Pyroelectric detector circuits and devices |
04/15/1980 | CA1075498A1 Ultraviolet radiation dosimeter |
03/25/1980 | US4195234 Infrared intrusion alarm system with temperature responsive threshold level |
03/18/1980 | US4193695 Spectrographic apparatus with chopper means located in the sample cell |
03/18/1980 | CA1073996A1 Photovoltaic system including a lens structure |
03/11/1980 | US4192995 Photometric testing apparatus using shaped diffuser and light beam having a spatially ill-defined energy distribution |
02/19/1980 | CA1072187A1 Avalanche photodiode detector |
02/12/1980 | US4188551 Amplifier circuit having photoelectric converter |
02/12/1980 | CA1071743A1 Pyroelectric-field effect electromagnetic radiation detector |
02/06/1980 | EP0007842A1 Device for the detection and localization of radiation |
02/06/1980 | EP0007669A1 The manufacture of an infra-red detector element, and detector elements so manufactured |
02/06/1980 | EP0007667A1 Infra-red detector elements and their manufacture |
02/06/1980 | EP0007644A2 Device for collecting light and process for the manufacture of such a device |
02/06/1980 | EP0007635A2 Device for collecting light and process for the manufacture of such a device |
02/06/1980 | EP0007627A1 Optical receiving system |
02/05/1980 | CA1070975A1 Incubator and radiometric scanner |
02/05/1980 | CA1070972A1 Method and apparatus for monitoring optical radiation |
01/08/1980 | US4182573 Exposure meter |
01/01/1980 | US4181863 Photodiode circuit arrangements |
01/01/1980 | US4181413 Electronic shutter control circuit |
01/01/1980 | US4181398 Optical apparatus |
12/25/1979 | US4180702 Photo electric light detection devices |
12/18/1979 | US4179606 Flame sensor |
12/18/1979 | CA1068405A1 Dynamic light reference system for film reader |
12/11/1979 | US4178101 Scalar irradiance meter |
12/11/1979 | US4177566 Insolation survey device |
12/11/1979 | CA1068000A1 Device for reading out the charge condition of a phototransistor |
12/04/1979 | US4176955 Exposure meter |
11/20/1979 | CA1066799A1 Semiconductor color detector |
11/06/1979 | US4173415 Apparatus and process for rapidly characterizing and differentiating large organic cells |
10/30/1979 | CA1065437A1 Device for objective checking for foreign bodies in optically transparent cylindrical containers filled with liquids |
10/17/1979 | EP0004729A2 Apparatus and method for recording high-speed repetitive optical phenomena |
10/02/1979 | CA1063400A1 Glass-filled polymeric filter element |
09/25/1979 | US4168910 Optical beam-switching chopper |
09/18/1979 | US4168125 Light sensing device |
09/18/1979 | US4168124 Method and device for measuring the solar energy received at a particular place |
09/18/1979 | CA1062815A1 Device for measuring local radiation absorption or emission in a body |
09/18/1979 | CA1062812A1 Continuously monitoring ratiometer |
09/05/1979 | EP0003828A1 Photometric testing apparatus |
09/04/1979 | US4166955 Radiation detector and method of operating the same |
09/04/1979 | US4166954 Instrument for determining infrared beam vergence |
09/04/1979 | US4166696 Photometer |
09/04/1979 | US4166679 Exposure information setting circuit |
08/21/1979 | US4165463 Radiation monitors and method for positioning |
08/21/1979 | US4165180 Automatic computing color meter |
07/31/1979 | US4162853 Illumination measurement device |
07/31/1979 | CA1059598A1 Radiation detection apparatus |
07/24/1979 | USRE30051 Chopper arrangement for atomic absorption spectrophotometer |
07/24/1979 | US4162425 Ultraviolet detection tube quenching circuitry |
07/24/1979 | CA1058904A1 Apparatus for textile color analysis using reflected light |
07/11/1979 | EP0002752A2 Photodiode device |
07/03/1979 | US4160164 Flame sensing system |
07/03/1979 | US4160163 Flame sensing system |
06/26/1979 | CA1057045A1 Method for monitoring the surface resistivity of metallized film |
06/19/1979 | CA1056931A1 Smoke detector |
06/12/1979 | US4158132 Lighting-control system with cue-level confirmation |
06/05/1979 | US4157560 Photo detector cell |
05/29/1979 | US4156562 Digital display device for digitally displaying correct exposure time |
05/15/1979 | US4155010 Process for the photo-optical measurement of the absorption behavior of solid, liquid and gaseous media |
05/08/1979 | US4153369 Convertible dual beam differential spectrofluorometer and absorption meter |
05/08/1979 | US4153368 Electro-optical detector protection device |
05/01/1979 | US4152594 Apparatus for the photo-optical measurement of the absorption behavior of solid, liquid and gaseous media |
05/01/1979 | US4152074 Inverse fourth power photometric calibrator |
04/19/1979 | WO1979000180A1 Indicator for a limit value and a measurement value |
04/10/1979 | US4149259 Transversal filter for convoluted image reconstruction |
04/10/1979 | CA1052457A1 Sensing circuit with four terminal semi-conductor device |
03/27/1979 | US4146798 Ink feed volume measuring device |
03/20/1979 | CA1050795A1 Diffusion device for compensating for non-uniform photomultiplier cathode sensitivity |
03/13/1979 | CA1050300A1 Unit for use in optical analysis |
02/13/1979 | US4139769 Boresight method and apparatus |
02/13/1979 | CA1048294A1 Apparatus for optically analysing a solution |
01/16/1979 | CA1046608A1 Ultraviolet radiation detector |
12/19/1978 | US4130760 Reusable radiation monitor |
12/19/1978 | CA1044484A1 Directional radiation detector |
12/05/1978 | US4128760 Ambient light compensating circuit |
12/05/1978 | US4128340 Portable test apparatus for low light level devices |
11/28/1978 | CA1043445A1 Infra-red dynamic flame detector |
11/21/1978 | CA1043007A1 Gain photocurrent device |
11/14/1978 | US4125330 Photometric apparatus |
10/31/1978 | US4123764 Exposure control device |
10/31/1978 | CA1041629A1 Inspection of containers |
10/17/1978 | US4120589 Method and apparatus for measuring the distribution of a light field about the optical axis of a light source |
10/10/1978 | US4119381 Incubator and radiometric scanner |
10/03/1978 | US4118712 Digital light meter system for a camera |
10/03/1978 | CA1039828A1 Light detector for the nanosecond-dc pulse width range |
10/03/1978 | CA1039530A1 Photomultiplier tube gain regulating system |