| Patents for H01J 40 - Photoelectric discharge tubes not involving the ionisation of a gas (3,388) |
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| 10/24/1989 | US4876443 Photocell, having inclined plate cathode |
| 04/12/1989 | CN1003897B Photo-cathode conducting substrate |
| 11/17/1988 | EP0291084A2 Photoelecric cell, particularly for the detection of ultra-violet radiation |
| 04/13/1988 | CN87106900A Photo-cathode conducting substrate |
| 02/16/1988 | US4725758 Photocathode |
| 11/24/1987 | US4709140 High speed light detection tube |
| 07/28/1987 | US4683399 Silicon vacuum electron devices |
| 06/23/1987 | US4675532 Combined staring and scanning photodetector sensing system having both temporal and spatial filtering |
| 05/21/1987 | WO1987003138A1 Combined staring and scanning photodetector sensing system having both temporal and spatial filtering |
| 04/07/1987 | US4656392 Electron discharge device having a thermionic emission-reduction coating |
| 02/03/1987 | US4641103 Microwave electron gun |
| 01/24/1987 | CN85101644A Output signal enhancement for microspectrofluorescence systems |
| 09/30/1986 | US4614871 Gas chromatography detector |
| 05/12/1986 | EP0165312A4 Pre-amplifier in focal plane detector array. |
| 05/07/1986 | EP0180194A2 Photodiode |
| 04/29/1986 | US4585936 Optical process for determining the dimensions of an object in relative movement, and more particularly of a coin in a pre-payment apparatus |
| 02/13/1986 | WO1986001032A1 Microwave electron gun |
| 12/27/1985 | EP0165312A1 Pre-amplifier in focal plane detector array. |
| 11/26/1985 | US4555623 Pre-amplifier in focal plane detector array |
| 06/20/1985 | WO1985002713A1 Pre-amplifier in focal plane detector array |
| 01/01/1985 | US4491683 Solar photoelectric module |
| 09/26/1984 | EP0119936A1 Optical method and apparatus to determine the dimensions of a relatively moving object, in particular a coin in a vending machine |
| 08/07/1984 | US4464572 Infrared photoemitting diode having reduced work function |
| 05/22/1984 | CA1167946A1 Ambient light sensor touch switch system and method |
| 12/06/1983 | US4419603 Potassium cesium antimonide on manganese monoxide |
| 08/16/1983 | USRE31350 Photodetector arrangements and circuits |
| 07/19/1983 | US4394572 Photodetector having an electrically conductive, selectively transmissive window |
| 04/12/1983 | USRE31207 Leak current suppressing printed circuit board |
| 12/28/1982 | US4366378 Laser light detection system |
| 10/14/1982 | WO1982003493A1 Improved photodetector |
| 03/16/1982 | US4320289 Precision laser pulse radiometer |
| 01/12/1982 | US4310243 Spectrophotometer with photomultiplier tube dark signal compensation |
| 01/12/1982 | CA1116306A1 Power-supply device for a microchannel tube |
| 11/17/1981 | US4301362 Light activated solid state switch |
| 09/29/1981 | US4292514 Apparatus for, and method for, achieving a temperature compensation of an avalanche photodiode |
| 06/09/1981 | CA1102898A1 Ambient light compensating circuit |
| 03/31/1981 | CA1098585A1 Monitoring system for high-voltage supply |
| 12/23/1980 | CA1092226A1 Solar energy converter |
| 09/16/1980 | US4223215 Photodetector arrangements and circuits |
| 04/01/1980 | US4196257 Bi-alkali telluride photocathode |
| 03/25/1980 | US4195222 Power-supply device for a microchannel tube |
| 12/11/1979 | US4178529 Flip-header and tube base for CTD mounting within an image intensifier |
| 12/11/1979 | US4178528 Image intensifier unitube for intensified charge transfer device and method of manufacture |
| 10/23/1979 | US4172221 Circuit arrangement for automatically closing a switching transistor for a predetermined time period after opening a switching means |
| 09/04/1979 | US4166948 Seed sensor |
| 07/31/1979 | US4163174 Oblique streak tube |
| 07/03/1979 | US4160185 Red sensitive photocathode having an aluminum oxide barrier layer |
| 05/22/1979 | US4156136 Light activated acoustic pinger |
| 04/18/1979 | EP0001483A1 A multichannel electron multiplier arrangement |
| 04/03/1979 | US4147929 Optical photoemissive detector and photomultiplier |
| 03/06/1979 | US4143264 Highway line detector |
| 02/13/1979 | US4139767 Photodetector with improved signal-to-noise ratio |
| 12/05/1978 | US4128760 Ambient light compensating circuit |
| 11/28/1978 | CA1043415A1 Electron tube having a photocathode, photocathode for such a tube, and method of manufacturing such a tube |
| 11/14/1978 | US4125793 Photomultiplier with dynode support structure |
| 09/26/1978 | US4117366 Radiation detectors |
| 09/19/1978 | US4115830 Monitoring system for high-voltage supply |
| 09/12/1978 | US4114036 A leak current suppressing printed circuit board |
| 09/05/1978 | US4112326 Non-uniform dynode mesh for an electron discharge tube |
| 09/05/1978 | US4112325 Electron discharge tube having a cup-shaped secondary electron emissive electrode |
| 08/15/1978 | US4107564 Photoemitter |
| 07/18/1978 | US4101763 Control system for an image detector |
| 07/11/1978 | US4100406 Photoelectric shutter tube with microduct wafer incorporated in a wave propagation line which is integrated in said shutter tube |
| 06/20/1978 | US4096382 Photo-current log-compression circuit |
| 06/13/1978 | US4094703 Electroconductive, photoemitting electrodes |
| 06/06/1978 | US4093852 Laser addressed display |
| 05/23/1978 | US4091276 Remote control switching |
| 04/25/1978 | US4086486 One dimensional photon-counting detector array |
| 04/11/1978 | US4084088 Automatic light switch |
| 03/14/1978 | US4079282 Phototube having apertured electrode recessed in cup-shaped electrode |
| 01/17/1978 | US4069418 Detachable high-speed optoelectronic sampling head |
| 12/27/1977 | US4065724 Balanced low impedance differential input line preamplifier |
| 11/29/1977 | US4060747 Phototube having domed mesh with non-uniform apertures |
| 07/26/1977 | US4038576 Photocathode support of corundum with layer of barium boroaluminate or calcium boroaluminate glass |
| 07/12/1977 | US4035634 Light receptor device |
| 06/28/1977 | US4032777 Photomeric monitoring device |
| 06/14/1977 | US4029984 Fluorescent discharge cold cathode for an image display device |
| 06/14/1977 | US4029959 Plant light sensor adaptor |
| 05/03/1977 | US4021693 Electron-optical image tube |
| 03/29/1977 | US4015117 Unbiased modulated photo sensing systems |
| 02/15/1977 | US4008391 Device for measuring lighting effectiveness |
| 02/01/1977 | US4006376 Phototube having improved electron collection efficiency |
| 01/11/1977 | US4002901 Photodetector non-responsive to Cerenkov radiation |
| 01/11/1977 | US4002900 Phototracing system |
| 01/11/1977 | US4002735 Method of sensitizing electron emissive surfaces of antimony base layers with alkali metal vapors |
| 11/16/1976 | US3992621 Fast triplanar detector with coaxial connector output |
| 09/28/1976 | US3983437 Electromagnetic radiation detector |
| 01/06/1976 | US3931633 Electron tube including a photocathode |