Patents for G01J 1 - Photometry, e.g. photographic exposure meter (22,989)
09/1987
09/15/1987US4693599 Apparatus for measuring light beam characteristics
09/15/1987US4693545 Apparatus for the controlled transmission of light
09/15/1987US4693110 Method and apparatus for testing the operability of a probe
09/11/1987WO1987005390A1 Purge air system for a combustion instrument
09/09/1987EP0236008A1 Monitoring a laser beam
09/09/1987EP0235284A1 Integrated infrared detector and cryoengine assembly.
09/09/1987EP0235141A1 Ultraviolet radiation monitoring device.
09/08/1987US4692623 Precision laser beam positioner and spatially resolved laser beam sampling meter
09/08/1987US4692619 Pyroelectric type detecting device
09/03/1987DE3606533A1 Photometric device
09/02/1987EP0235044A2 A light detector
09/02/1987EP0235029A1 Optical detector of the integrated optics type and its method of manufacture
09/02/1987EP0234962A1 Reflective screen, its process of manufacture and its application in a thermal insulation device
09/02/1987EP0234644A2 Infrared detectors
09/02/1987EP0234595A2 Light collecting optics for a flame detector
09/01/1987US4691107 Infra red photo detector systems
09/01/1987US4691106 Apparatus for determining reflectivity of an object such as a mirror
09/01/1987US4691104 One-dimensional pyroelectric sensor array
09/01/1987US4690555 Solid-state wavefront slope determination
08/1987
08/26/1987CN86207265U Phototube type shortwave ultraviolet ray strength meter
08/25/1987US4689305 Luminescence, amplification, switches
08/20/1987DE3604815A1 Microscope photometer
08/18/1987US4688091 Spacecraft camera image registration
08/18/1987US4687934 Infrared gas analyzer with automatic zero adjustment
08/18/1987US4687926 Spectrally filtered lens producing plural f-numbers with different spectral characteristics
08/18/1987US4687921 Photomultiplier used in liquid scintillation counting with specimen-encircling curved photocathode
08/18/1987US4687337 Atmospheric Aerosol extinctiometer
08/18/1987US4687327 Oil mist monitor
08/18/1987CA1225721A1 Infra-red radiation detector
08/18/1987CA1225720A1 Infrared thermal detector
08/13/1987WO1987004861A1 Light detector
08/13/1987WO1987004804A1 Microspectrofluorimeter
08/12/1987EP0232184A2 Infrared detector
08/12/1987EP0232037A2 Optical beam integration system
08/12/1987EP0231179A1 Concentration meter
08/12/1987EP0112866B1 Dosimeter for photometric applications
08/05/1987EP0230517A2 Light barrier
08/04/1987US4684883 Method of manufacturing high-quality semiconductor light-emitting devices
08/04/1987US4684798 Performance improvement for camera autofocus
07/1987
07/30/1987WO1987004519A1 Cryogenically cooled radiation detection apparatus
07/30/1987WO1987004450A1 Ice-combative measures
07/30/1987WO1987003700A3 Process and circuit for compensating changes in the parameters of an optical emitter and an optical receiver in an optical scanner
07/29/1987CN87100371A Light barrier
07/29/1987CN86210591U Sea-surface lumeter with interface receiving signals from fixed satellite
07/29/1987CN86207853U Laser radiation detector with pvdf as sensitive material
07/28/1987CA1224856A1 Infrared receiver having a cooled radiation detector
07/28/1987CA1224640A1 Apparatus for determining the diffuse reflectivity of a sample surface of small dimensions
07/22/1987EP0229602A1 Reflectometric method of measurement and apparatus for realizing the method
07/22/1987EP0229355A2 Apparatus and method for carrying out photometric assays
07/21/1987US4682030 Infrared radiation detector with integral fresnel lens window
07/21/1987US4682022 Detector preamplifier for use with a MCT detector
07/21/1987US4681441 Light measuring device
07/21/1987US4681434 Dual spectra optical pyrometer having a serial array of photodectectors
07/21/1987US4680960 Microwave and luminous probe
07/16/1987WO1987004240A1 Infrared gas analyzer with automatic zero adjustment
07/15/1987EP0228877A2 Comparative colorimeter
07/15/1987EP0228721A1 Semiconductive radial photodetector and apparatus comprising such a detector
07/15/1987CN86206441U Flash photometric meter
07/15/1987CN86204091U Illumination sensor with silicon photocell as photoelectric element
07/15/1987CN86107777A Frequency modulated photometric method
07/07/1987US4679156 Microprocessor-controlled fire sensor
07/07/1987US4678921 Photo-electric smoke detector with light shielding electrode
07/07/1987US4678330 Method and apparatus for measuring solar radiation in a vegetative canopy
07/07/1987US4678328 Non-optimum waveguide optical sensor
07/07/1987CA1223938A1 Light detecting circuit
07/01/1987CN86108495A Dual spectra optical pyrometer having a serial array of photodetectors
06/1987
06/30/1987US4677289 Color sensor
06/30/1987US4676653 Apparatus for determining the diffuse reflectivity of a sample surface of small dimensions
06/30/1987US4676640 Fluctuation analysis for enhanced particle detection
06/30/1987CA1223667A1 Microcomputer clock circuit
06/30/1987CA1223470A1 Incident light filter for cameras
06/24/1987EP0226461A2 Process for the preparation of an image-reading photosensor.
06/24/1987EP0225895A1 Integration receiving device for laser radiation
06/24/1987EP0094410B1 A method for comparison between a first optical signal and at least one other signal
06/23/1987US4675661 Light-attenuation type fire detector assembly
06/23/1987US4675529 Fluorescent spectral analysis apparatus
06/23/1987US4675525 Matrix device for the detection of light radiation with individual cold screens integrated into a substrate and its production process
06/19/1987DE3544015A1 Gas analysis apparatus
06/18/1987WO1987003700A2 Process and circuit for compensating changes in the parameters of an optical emitter and an optical receiver in an optical scanner
06/18/1987WO1987003681A1 Optical sensing system
06/18/1987WO1987003670A1 Thermal damper for infrared detector
06/18/1987WO1987002766A3 Device for measuring uv-radiation
06/16/1987US4673282 Electrophotographic copying apparatus
06/16/1987CA1222886A1 Scanning radiation detector
06/11/1987DE3543789A1 Colour-measuring arrangement
06/10/1987CN85108759A Achromatic standard board for reflection spectrum measurement
06/02/1987US4670741 Smoke detection apparatus
06/02/1987US4670655 Alarm apparatus for spatial surveillance
06/02/1987US4669878 Automatic monochromator-testing system
06/02/1987US4669877 Digital gain controlled current to voltage amplifier
05/1987
05/21/1987WO1987003086A1 Uv-sensitive composition and element for measuring uv dosage
05/20/1987EP0222468A2 Method and apparatus for measuring single mode fiber mode field radius
05/19/1987US4666301 Radiation responsive integrating amplifier
05/12/1987US4665311 Smoke detecting apparatus
05/12/1987CA1221557A1 Optical beam analyzer
05/07/1987WO1987002768A1 Solid-state wavefront slope determination
05/07/1987WO1987002766A2 Device for measuring uv-radiation
05/06/1987EP0220511A2 Circuit arrangement for an infrared space surveillance detector
05/06/1987EP0137790B1 Self-compensating hydrostatic flattening of semiconductor substrates
05/05/1987US4663524 Apparatus for measuring parameters of light spots with a moving knife-edge mask