| Patents for G01J 1 - Photometry, e.g. photographic exposure meter (22,989) |
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| 02/22/1989 | CN2032817U Stationery box for preventing myopia |
| 02/21/1989 | US4807006 Heterojunction interdigitated schottky barrier photodetector |
| 02/21/1989 | US4806993 Method and device for rapid photo-detection by means of a super-lattice |
| 02/21/1989 | US4806763 Infrared radiation detection device |
| 02/21/1989 | US4806762 Thermal radiation detector |
| 02/21/1989 | US4806748 Photo-electric conversion circuit |
| 02/15/1989 | EP0303132A2 Device detecting hemoglobin |
| 02/14/1989 | US4804849 Method and apparatus for determining concentrations of chlorophyll and the rate of primary production in water |
| 02/14/1989 | US4804834 Photosensor having photosensitive part formed of purple membrane |
| 02/14/1989 | US4804266 Continuously rotating grating rapid-scan spectrophotometer |
| 02/09/1989 | WO1989000279A3 Analog-digital correlator |
| 02/08/1989 | EP0302655A2 Light sensing and emitting devices |
| 02/08/1989 | EP0302275A2 Arrangement for detecting intensity-modulated light signals |
| 02/08/1989 | EP0302182A2 Device for selective photometry |
| 02/07/1989 | US4803360 Infrared radiation detector with flanged semiconductor window |
| 02/01/1989 | EP0301652A2 Radiation detector arrangements and methods |
| 02/01/1989 | EP0168679B1 Measuring system for the irradiation coming from the half-space |
| 01/31/1989 | US4801796 Streak camera unit with elliptical deflection |
| 01/31/1989 | US4801212 Optical system for radiation thermometer |
| 01/26/1989 | WO1989000767A1 Light detector and signal processing circuit |
| 01/24/1989 | US4800285 Flame detecting arrangement for detecting a flame through horizontal and vertical scanning of a supervisory region by using a photodetector |
| 01/24/1989 | US4799791 Illuminance distribution measuring system |
| 01/18/1989 | CN2031090U Durable detector for laser power and energy |
| 01/18/1989 | CN1030476A Light pressure measurement method for laser beam energy and apparatus thereof |
| 01/17/1989 | US4799094 Semiconductor, lightly doped hydrogenated amorphous silicon |
| 01/17/1989 | US4798950 Radiation characteristic measuring apparatus for laser diode |
| 01/12/1989 | WO1989000279A2 Analog-digital correlator |
| 01/11/1989 | EP0298568A2 Arrays of infrared detector elements |
| 01/11/1989 | EP0298091A1 Optical sensors and optical fibre networks for such sensors |
| 01/10/1989 | US4797747 Streak camera device having a plurality of streak tubes |
| 01/10/1989 | US4797619 Method and apparatus for measuring spatial profiles of energy beams |
| 01/10/1989 | US4797555 High energy laser target plate |
| 01/10/1989 | US4797000 Comparative colorimeter |
| 01/05/1989 | DE3819005A1 Method and arrangement for determining the diameter of light bundles |
| 01/05/1989 | DE3720167A1 Double-beam photometer for evaluating the intensity of the change in colour of reagent strips |
| 01/03/1989 | US4796062 Method for calibrating exposure of multiple cameras |
| 01/03/1989 | US4795907 Infrared detector |
| 01/03/1989 | US4795899 For delivering electric informationT?????h)??????????0*0*0*0?0????T |
| 01/03/1989 | CA1248199A1 Infra red photo detector systems |
| 12/29/1988 | WO1988010462A1 Procedure for controlling a radiation source and controllable radiation source |
| 12/28/1988 | EP0296956A2 Gloss gauge |
| 12/28/1988 | EP0296856A1 Headlight aiming and light pattern testing apparatus and method |
| 12/28/1988 | EP0296651A1 Image analysing tube provided with blur compensating means |
| 12/28/1988 | EP0296428A2 Heterojunction interdigitated schottky barrier photodetector |
| 12/28/1988 | EP0296371A1 Ultraviolet photodetector and production method |
| 12/28/1988 | EP0296354A2 Gas analyzer |
| 12/28/1988 | CA1247422A Spectrally filtered lens producing plural f-numbers with different spectral characteristics |
| 12/28/1988 | CA1247398A Automatic monochromator-testing system |
| 12/27/1988 | US4793715 Detector for aligning high power lasers |
| 12/27/1988 | US4793704 Photometric circuit |
| 12/21/1988 | EP0295288A1 Analog offset compensation technique. |
| 12/20/1988 | US4792690 Ultraviolet laser beam monitor using radiation responsive crystals |
| 12/20/1988 | US4792685 Photoelectric sensor |
| 12/20/1988 | US4792675 Diffused surface radiant energy receiver |
| 12/20/1988 | US4792671 Photosensor array having grouped electrodes |
| 12/20/1988 | CA1247211A1 Discriminating fire sensor with thermal override capability |
| 12/15/1988 | EP0235141A4 Ultraviolet radiation monitoring device. |
| 12/14/1988 | EP0295152A2 Apparatus for following sun light |
| 12/14/1988 | EP0294996A2 Scanning fluorescent detection system |
| 12/14/1988 | EP0294379A1 Purge air system for a combustion instrument |
| 12/14/1988 | EP0294367A1 Device for detecting the radial distribution of the radial intensity distribution of a laser beam. |
| 12/13/1988 | US4791298 Infrared detectors |
| 12/07/1988 | EP0293435A1 Infrared detector with improved heat dissipation. |
| 12/06/1988 | US4789777 Photelectric amplifier having plural actuable feedback paths |
| 12/01/1988 | WO1988009486A1 Pyroelectric infrared sensor |
| 11/30/1988 | EP0293049A1 A light detecting and light direction determining device |
| 11/30/1988 | EP0292532A1 Radiation meters. |
| 11/29/1988 | US4788443 Apparatus for measuring particles in a fluid |
| 11/29/1988 | US4788433 Ultraviolet light monitoring device and method of making same |
| 11/23/1988 | EP0292097A2 Device for detecting the mixing ratio of petrol and an alcohol or the like |
| 11/22/1988 | US4786809 Circuit for interfacing signals from a sensor |
| 11/22/1988 | US4786188 Purge air system for a combustion instrument |
| 11/22/1988 | CA1245329A1 Apparatus for the controlled transmission of light |
| 11/22/1988 | CA1245072A1 Method and apparatus for measuring single mode fiber mode field radius |
| 11/17/1988 | EP0290750A2 Systems for the visualization of exposure to ultraviolet radiation and for the utilization of ultraviolet radiation to effect color changes |
| 11/17/1988 | EP0290517A1 Integrated detector dewar cryoengine. |
| 11/15/1988 | US4785170 For photometrically determining optical properties of a test specimen |
| 11/15/1988 | US4785167 Photodetector having cascaded photoelements |
| 11/15/1988 | CA1244901A1 Infrared intrusion detector |
| 11/09/1988 | EP0290167A2 Improvements in or relating to the detection of ultraviolet radiation |
| 11/08/1988 | US4783592 Real time adaptive round discrimination fire sensor |
| 11/08/1988 | US4783139 Streaking tube |
| 11/02/1988 | EP0289304A2 Beam control device for a laser used in an optical memory system |
| 11/01/1988 | US4782357 Light measuring device for camera |
| 11/01/1988 | US4782276 Electric signal generator system and its application |
| 11/01/1988 | US4781456 Absorption photometer |
| 10/25/1988 | US4780832 Radiation probe and method of use |
| 10/25/1988 | US4780612 Method and apparatus for multiplexing signals from electromagnetic radiation detectors |
| 10/25/1988 | US4780607 Laser beam power monitoring arrangement |
| 10/25/1988 | US4779987 Method of spectrographically measuring density of photographic negative color film |
| 10/25/1988 | US4779982 Spectrofluorophotometer with monitor detector for light source |
| 10/25/1988 | US4779980 Atmospheric optical calibration system |
| 10/25/1988 | CA1243749A1 Photodosimeter |
| 10/25/1988 | CA1243503A1 Flame quality monitor |
| 10/25/1988 | CA1243502A1 Ultraviolet dosimetry |
| 10/20/1988 | WO1988008142A1 Response-rationing angle of arrival sensor |
| 10/19/1988 | EP0287139A2 Channel plate electron multipliers |
| 10/19/1988 | EP0286842A2 Multichannel type head |
| 10/19/1988 | CN88200653U Photometer |
| 10/18/1988 | US4778990 Radiant energy receiving and directing apparatus and method |