Patents for G01J 1 - Photometry, e.g. photographic exposure meter (22,989)
08/1983
08/31/1983EP0087299A2 Multilayer avalanche photodetector
08/30/1983US4401386 Light measuring device
08/24/1983EP0086535A1 Photosensitive compositions and products
08/23/1983US4400691 Analog-to-digital converter for cameras
08/23/1983US4400087 Light measuring circuit
08/18/1983WO1983002866A1 Improvements in or relating to light detecting and measuring devices
08/18/1983WO1983002842A1 Teaching or amusement apparatus
08/16/1983USRE31350 Photodetector arrangements and circuits
08/09/1983US4397553 Photographic spot measuring apparatus
08/09/1983US4397552 Instrument for measurement of exposure from a laser radiation
08/09/1983US4397533 Photographic light measuring device
07/1983
07/27/1983EP0084391A2 Atomic absorption spectrophotometer
07/26/1983US4395099 Scene brightness measuring system
07/26/1983CA1150806A1 Infra-red detector elements and their manufacture
07/20/1983EP0083761A1 Output control device for light detectors for photometers
07/19/1983US4394570 Photoelectric conversion circuit
07/19/1983US4394078 Method of controlling exposure
07/13/1983EP0083368A1 Radiant energy detection apparatus
07/12/1983US4392727 Camera exposure control devices with smoothing circuit
07/07/1983WO1983002323A1 Photomultiplier detector protection device and method
07/05/1983US4391522 Test apparatus for determining resistance to light and weather influences
07/05/1983US4391521 Photometer having asymmetrical aperture and with compensation for direction of incidence
06/1983
06/28/1983US4390958 Electro-optical measuring apparatus to cover zones of different widths and obtain computed utilization signals for printing apparatus
06/21/1983CA1148394A1 Area radiation target
06/14/1983US4388528 Photoelectronic apparatus
06/09/1983WO1983002003A1 Measuring intensities of illumination over a light beam
06/01/1983EP0080114A1 Radiation detector with sensor elements
05/1983
05/31/1983US4385833 Apparatus for reception and radiation of electromagnetic energy in predetermined fields of view
05/26/1983WO1983001852A1 A method for comparison between a first optical signal and at least one other signal
05/25/1983EP0079651A1 Photo-electric detection structure
05/18/1983EP0079282A1 Method and device for fast energy measuring, and application to the measuring of the energy produced by a pulse laser
05/17/1983US4384337 Zonal ink distribution measuring method and system
05/11/1983EP0078443A2 Fire detection system
05/11/1983EP0078442A2 Fire detection system with IR and UV ratio detector
05/10/1983US4383288 Adjustable light collector and sampler therefor
05/03/1983US4382226 Electrolytic cell for actinometers
05/03/1983US4381890 Incident light filter for cameras
04/1983
04/27/1983EP0077648A2 Circuits for regulating the output voltage of a device, for instance a photocell
04/26/1983US4381455 Flame detector including detector testing apparatus
04/06/1983EP0075767A1 Method for the determination and evaluation of photometric signals and device for carrying out the method
03/1983
03/30/1983EP0075222A1 Method and compensation circuit for analyzers
03/30/1983EP0075044A1 Aid for measuring the surplus of light in light barriers
03/22/1983CA1143460A1 Manufacture of an infra-red detector element, and detector elements so manufactured
03/16/1983EP0074225A1 Radiometer
03/15/1983CA1143032A1 Ultraviolet light control
03/09/1983EP0073467A2 A data compression system for a photometer
03/09/1983EP0073425A2 Dual photoelectric cell assembly
02/1983
02/23/1983EP0072443A2 Method and apparatus for measuring the illumination uniformity in a ring field projection system
02/22/1983US4375034 Passive infrared intrusion detection system
02/15/1983US4373810 Automated exposure-contrast control index meter
02/15/1983US4373809 Solar energy flux integrator
02/15/1983CA1141193A1 Apparatus and method for measuring the distribution of radiant energy produced in particle investigating systems
02/08/1983US4372680 Miniature spectrally selective dosimeter
02/01/1983US4371897 Fluorescent activated, spatially quantitative light detector
02/01/1983CA1140653A1 Ultraviolet light dosage monitor
01/1983
01/26/1983EP0070601A1 Infra-red radiation detector
01/26/1983EP0020349B1 Supervision device with a passive optical detector for electrical arcs in a circuit-breaker
01/20/1983WO1983000257A1 Radiant energy detection apparatus
01/18/1983US4369364 Monitoring device with an optical sensor for the detection of interference arcs in electrical systems
01/05/1983EP0068456A2 Electromagnetic radiation detection system comprising a radiation limiting shield
12/1982
12/28/1982CA1138556A1 Flame sensing system
12/21/1982US4364662 Dual mode camera exposure meters
12/21/1982US4364650 Exposure control method and device
12/14/1982CA1137331A1 Method and apparatus for measuring equivalent sphere illumination in the field
12/14/1982CA1137327A1 Holographic plate exposure meter
12/07/1982CA1203306B Sensor integrator system
12/07/1982CA1137190A1 Sensor integrator system
12/07/1982CA1136884A1 Apparatus and method for measuring scattering of light in particle detection systems
12/01/1982EP0065571A1 Gate modulation input circuit with polycrystalline silicon resistors
11/1982
11/30/1982US4361765 Ternary liquid scintillator for optical fiber applications
11/30/1982US4361758 Sun position sensor for two axis tracking
11/17/1982EP0064811A1 Flame detector
11/17/1982EP0064746A2 Sunlight direction sensor
11/09/1982US4358679 Calibration of analyzers employing radiant energy
11/02/1982US4357079 Slit pattern projecting apparatus having alignment detecting means
11/02/1982CA1134644A1 Multispectral light detection system
10/1982
10/26/1982CA1134474A1 Photoelectronic apparatus with protection from effects of undesired light
10/26/1982CA1134168A1 Two beam alternating light colorimeter
10/12/1982US4353629 System and method for calculating a light information value
10/05/1982US4352982 Photodiode circuit using a low noise artificial load resistor
10/05/1982US4352559 Logarithmic primary testing system for security validation
09/1982
09/28/1982CA1132375A1 Irradiance analyzer for high power lasers
09/28/1982CA1132372A1 High energy laser beam sampling meter
09/22/1982EP0060743A1 Photodetector sensitive in the near infrared range
09/21/1982US4350890 Apparatus for monitoring low level light emission in underwater environment
09/21/1982CA1132184A1 Light integrator circuit with built-in anticipation
09/15/1982EP0059836A1 Optical beam splitter
09/14/1982US4349255 Photographing apparatus for an endoscope
09/07/1982US4348664 Device for measuring ultraviolet light exposure
09/07/1982US4348110 Charging current integrating type photodetectors
09/01/1982EP0059025A1 An optical system for a spectrophotometer
08/1982
08/31/1982US4347530 Scanning mirror arrangement
08/10/1982US4344172 System for measuring the radiation power of power-modulated transmitters, in particular of lasers
07/1982
07/28/1982EP0056671A1 Photoelectric detector device
07/27/1982US4341956 Apparatus and method for compensating the dark current photoelectric transducers
07/27/1982US4341471 Apparatus and method for measuring the distribution of radiant energy produced in particle investigating systems
07/27/1982US4341448 Light receiving element assembly in a camera
07/13/1982US4339748 Multiple range passive infrared detection system
07/13/1982US4339199 Pulsed laser beam intensity monitor
06/1982
06/30/1982EP0055027A2 Apparatus for deriving an electrical signal from a radiation flash and instruments incorporating such apparatus