| Patents for G01J 1 - Photometry, e.g. photographic exposure meter (22,989) |
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| 02/27/1990 | US4904876 Detection of ultraviolet radiation |
| 02/27/1990 | US4904035 Coupling device for guiding a light beam |
| 02/22/1990 | WO1990001692A2 Electro-optical measuring instruments |
| 02/22/1990 | WO1990001686A1 Flicker-free infrared simulator with resistor bridges |
| 02/22/1990 | WO1990001685A1 Apparatus for measuring the illumination |
| 02/22/1990 | WO1990001684A1 Process for photometric representation |
| 02/21/1990 | EP0298091A4 Optical sensors and optical fibre networks for such sensors. |
| 02/20/1990 | US4902927 Streak tube |
| 02/20/1990 | US4902886 Noise reduction for photodiode arrays |
| 02/20/1990 | US4902884 Circuit arrangement for carrying out light intensity measurements |
| 02/20/1990 | CA1266111A1 Spacecraft camera image registration |
| 02/14/1990 | EP0354637A2 CAD/CAM stereolithographic data conversion |
| 02/14/1990 | EP0354369A2 Infrared detector |
| 02/13/1990 | US4901126 Radiation detector |
| 02/08/1990 | WO1990001170A1 Device with main and secondary optical sensors |
| 02/08/1990 | DE3826813A1 Lichtverteilung-darstellungsverfahren Light distribution render process |
| 02/07/1990 | EP0353591A2 Biological sample analyzer |
| 02/06/1990 | US4899052 Infrared diagnostic instrument |
| 02/06/1990 | US4898462 Device for detecting a transmissivity of a substance |
| 02/06/1990 | US4898435 Dark mirror coated prism |
| 02/06/1990 | CA1314407E Infrared electronic thermometer and method for measuring temperature |
| 02/06/1990 | CA1265355A1 Infrared electronic thermometer and method for measuring temperature |
| 01/31/1990 | EP0161246B1 Detector array module-structure and fabrication |
| 01/31/1990 | CN1006670B Process for preparing image-reading photosensor |
| 01/30/1990 | US4896965 Real-time alkali monitoring system |
| 01/25/1990 | WO1990000732A1 Method and apparatus for spectroscopic measurement of the concentration of a gaz |
| 01/24/1990 | EP0351994A2 Concentration determination with multiple wavelength flash photometers |
| 01/24/1990 | EP0351880A2 Image pickup apparatus |
| 01/24/1990 | EP0351659A2 Method and arrangement for measuring the concentration of optically active substances |
| 01/23/1990 | US4896049 Color image sensor obtained from visual photosensitive materials derived from biological substances |
| 01/23/1990 | US4896048 Scattering-type particle detection device for use in high temperature process chambers |
| 01/23/1990 | US4896031 Proximity fuse optical radiation receiver having wedge-shaped damping filter positioned adjacent photocell |
| 01/23/1990 | US4895444 Detector device for mixing ratio for gasoline and alcohol or the like |
| 01/18/1990 | DE3928534A1 Electronic cloud cover measuring device - uses data provided by phototransistors to provide image of sky area evaluated by comparison with previous images |
| 01/17/1990 | EP0350866A1 Photodetector system with controllable position-dependent sensitivity |
| 01/17/1990 | EP0350595A2 Method and apparatus for measuring fast optical processes |
| 01/17/1990 | EP0350518A1 Photometer |
| 01/16/1990 | US4894544 Arrays of infrared detector elements |
| 01/16/1990 | US4894526 Infrared-radiation detector device |
| 01/16/1990 | US4893934 Aethalometer |
| 01/11/1990 | DE3821743A1 Sensor for the detection of irradiation |
| 01/09/1990 | US4892383 Reservoir fiber optic chemical sensors |
| 01/09/1990 | US4891970 Luminosity detector for internal combustion engine, method of operating engine and method of sensing temperature |
| 01/09/1990 | CA1264236A1 Optical temperature measurement techniques |
| 01/03/1990 | EP0348792A1 Method and apparatus for processing electric signals obtained by scanning a line of an image |
| 01/03/1990 | EP0348607A1 Measuring curvature of transparent or translucent material |
| 01/02/1990 | US4891519 Photometering apparatus |
| 12/28/1989 | WO1989012806A2 Apparatus for measuring the radiated power of lasers |
| 12/28/1989 | WO1989012774A1 Solid-state optical flame detector |
| 12/27/1989 | EP0347996A2 Photo-multiplier tube with electrodes fined to a support |
| 12/27/1989 | EP0347704A1 Infrared detector |
| 12/27/1989 | CN2050161U Passing type ag-bi film laser detector |
| 12/26/1989 | US4889994 Detection of electromagnetic radiation |
| 12/26/1989 | US4889985 Combined optical power meter and receiver |
| 12/20/1989 | EP0347054A2 Light intensity correlating apparatus |
| 12/20/1989 | EP0346878A2 System for controlling gain and offset in radiation measurement apparatus |
| 12/19/1989 | CA1263922A1 Programmable calibrated optical fiber thermometer system |
| 12/14/1989 | WO1989012218A1 Simplified method and apparatus for measuring quantity of ultraviolet radiation received |
| 12/13/1989 | EP0345972A1 Quantum-well radiation detector |
| 12/13/1989 | EP0345878A2 Thermal radiation detection apparatus |
| 12/13/1989 | EP0345383A1 A receiver for optical radiation |
| 12/13/1989 | EP0345320A1 A method to detect radiation and measure its angle of incidence and a detector arrangement to carry out the method. |
| 12/13/1989 | CN1006099B Position-sensitive radiation detector |
| 12/12/1989 | US4887139 Linear photo sensing device |
| 12/12/1989 | US4886996 Channel plate electron multipliers |
| 12/06/1989 | EP0345050A2 Thermal imaging device |
| 12/06/1989 | EP0345049A2 Thermal imaging device |
| 12/06/1989 | EP0344670A1 Pyroelectric sensor |
| 12/06/1989 | EP0344364A2 Detector device |
| 12/05/1989 | US4885471 Ultraviolet radiometer |
| 12/05/1989 | US4884860 Linear lens and method for concentrating radiant energy and multiplying phosphor luminance output intensity |
| 11/30/1989 | DE3916184A1 Gloss measuring device |
| 11/29/1989 | EP0343659A1 Spectrometer |
| 11/29/1989 | EP0343634A2 Video signal mixing device of infrared/visible integrated imaging apparatus |
| 11/29/1989 | EP0343587A1 Device for measuring the energy of an electrical arc |
| 11/29/1989 | EP0343235A1 Real time adaptive round discrimination fire sensor |
| 11/29/1989 | CN1005952B 光学外差接收机 Optical heterodyne receiver |
| 11/29/1989 | CN1005929B Fluid flow tube for measuring light intensity absorption |
| 11/28/1989 | US4884221 Color measuring apparatus |
| 11/28/1989 | US4883963 Optical analysis method and apparatus having programmable rapid random wavelength access |
| 11/23/1989 | EP0343018A2 Spectroscopes |
| 11/23/1989 | DE3816489A1 Standard light source |
| 11/21/1989 | US4882598 Method and an apparatus for determining an individual's ability to stand exposure to ultraviolet radiation |
| 11/21/1989 | US4882491 Infrared detector |
| 11/16/1989 | WO1989011085A1 Stereolithographic beam profiling |
| 11/15/1989 | EP0140502B1 Improvements relating to smoke detection apparatus |
| 11/14/1989 | US4880978 Resonant radiation protector |
| 11/14/1989 | US4880974 Photoelectric sensor employing custom lens member |
| 11/14/1989 | US4880972 Fiber-optic measuring apparatus using luminescent material |
| 11/07/1989 | US4879468 Photoionization optical filter and detector |
| 11/02/1989 | WO1989010256A1 Cad/cam stereolithographic data conversion |
| 11/02/1989 | WO1989010254A1 Stereolithographic supports |
| 11/01/1989 | CN2047010U Dk type laser dynamometer |
| 10/31/1989 | US4877966 Method and apparatus for the measurement of low-level laser-induced fluorescence |
| 10/25/1989 | EP0338751A2 Stereolithographic supports |
| 10/25/1989 | EP0338711A2 A pyroelectric element |
| 10/19/1989 | WO1989009930A1 An improved set point control circuit for an infrared gas analyzer |
| 10/19/1989 | WO1989009928A1 Process and device for determining the position of a laser beam |
| 10/19/1989 | WO1989009846A1 Electrochemically controlled superconductivity |
| 10/18/1989 | EP0337724A2 Radiation clinical thermometer |