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公开(公告)号：EP4325544A3
公开(公告)日：2024-05-08
申请号：EP23220656.5
申请日：2019-12-16
CPC分类号： H01J29/04 , H01J31/50 , H01J31/502 , H01J31/507 , H01J29/96
摘要： A power supply for an image intensifier of a night vision device is disclosed. The power supply comprises a battery, a memory, and a processor. The processor is configured to turn off a switch via which a voltage is supplied to a photocathode of the image intensifier in response to current drawn by an anode of the image intensifier. The processor is further configured to store, as a stored voltage value, a value of the voltage in the memory. The processor is further configured to turn on the switch and re-apply a voltage to the photocathode in accordance with the stored voltage value after a first predetermined period of time. The processor is further configured to enable an automatic brightness control procedure using the stored voltage value.
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公开(公告)号：EP4325544A2
公开(公告)日：2024-02-21
申请号：EP23220656.5
申请日：2019-12-16
IPC分类号： H01J29/96
摘要： A power supply for an image intensifier of a night vision device is disclosed. The power supply comprises a battery, a memory, and a processor. The processor is configured to turn off a switch via which a voltage is supplied to a photocathode of the image intensifier in response to current drawn by an anode of the image intensifier. The processor is further configured to store, as a stored voltage value, a value of the voltage in the memory. The processor is further configured to turn on the switch and re-apply a voltage to the photocathode in accordance with the stored voltage value after a first predetermined period of time. The processor is further configured to enable an automatic brightness control procedure using the stored voltage value.
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公开(公告)号：EP2200069A3
公开(公告)日：2010-12-22
申请号：EP09178531.1
申请日：2009-12-09
发明人： Yamazaki, Koji
CPC分类号： H01J31/127 , H01J29/96
摘要： A light-emitting substrate according to the present invention comprises a substrate, a plurality of light-emitting members (4) disposed on the substrate, and a plurality of metal backs (5) two-dimensionally arranged, the plurality of metal backs covering the plurality of light-emitting members. The metal backs in even-numbered rows and the metal backs in odd-numbered rows are disposed out of alignment with each other in a row direction, and the metal backs in even-numbered rows and in a same column are connected with one another by a first resistor (6), and the metal backs in odd-numbered rows and in a same column are connected with one another by a second resistor (7).
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公开(公告)号：EP2175471A3
公开(公告)日：2010-10-27
申请号：EP09172596.0
申请日：2009-10-08
发明人： Date, Takashi
CPC分类号： H01J29/085 , H01J29/02 , H01J29/08 , H01J29/864 , H01J29/92 , H01J29/925 , H01J29/96 , H01J31/127 , H01J2329/02 , H01J2329/08 , H01J2329/8625 , H01J2329/92 , H01J2329/96
摘要： An image display apparatus includes a face plate (2) including a low-potential electrode (24) and a plate-like spacer (40) including a longitudinal-direction end (401). The low-potential electrode (24) is set at a lower potential than that of a resistive anode (17) and is disposed between the resistive anode (17) and a feed electrode (21). The longitudinal-direction end (401) of the plate-like spacer (40) is disposed between the resistive anode (17) and the feed electrode (21) so as to overlap the low-potential electrode (24).
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公开(公告)号：EP0746867A4
公开(公告)日：1998-01-28
申请号：EP94928556
申请日：1994-09-02
IPC分类号： H01J61/56 , H05B41/02 , H05B41/24 , H05B41/282 , H01J7/44 , H01J13/46 , H01J17/34 , H01J19/78 , H01J23/16 , H01J29/96
CPC分类号： H01J61/56 , H05B41/02 , H05B41/245 , H05B41/282 , Y02B20/183
摘要： Fluorescent type lamps (24a-24n) are arranged to have frequency power delivered from standard, commercial A.C. sources (10) either directly or from power levels distributed from a master ballast (20). When the master ballast is employed, it functions as an interface between the primary power source and a distribution network to one or more modules so as to relieve the modules of operations such as initial power form conversions, filtering and power factor correcting which requires large components. The module or modules driven by the master ballast output are contained within the lamp envelope or attached as an extension of the lamp envelope. The module is formed of elements mounted as a miniaturized unit configured to fit within the lamp envelope or to attach to the end of the envelope. The module includes oscillator components mounted on an elongated board so as to form an assembly with a cross section compatible with the perimeter of the envelope itself. The module can operate independent of a master ballast unit by including power handling circuitry within the module.
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公开(公告)号：EP0332469B1
公开(公告)日：1994-06-22
申请号：EP89302413.3
申请日：1989-03-10
发明人： Shimoma, Taketoshi c/o Patent Division , Koshigoe, Shinpei c/o Patent Division , Hasegawa, Takahiro c/o Patent Division
CPC分类号： H01J29/96 , H01J29/503 , H01J2229/4841 , H01J2229/4865
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公开(公告)号：EP0447061A3
公开(公告)日：1992-01-29
申请号：EP91301568.1
申请日：1991-02-26
申请人： EEV LIMITED
CPC分类号： H04N5/238 , H01J29/98 , H01J31/50 , H01J2231/50063 , H01J2231/50094 , H04N5/2254 , H05G1/64
摘要： The high voltage power supply (2) of an image intensifier (3) is operated intermittently to minimise the effect on the intensified image of interference produced by the power supply (2), the input capacitance of the intensifier maintaining the high voltage at an acceptable level when the power supply (2) is not operating. When used in conjunction with a video camera, the power supply (2) may be allowed to operate only during the frame synch and/or line synch periods. A shutter may inhibit operation of the image intensifier (3) whilst its power supply is operating.
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公开(公告)号：EP0027299B1
公开(公告)日：1983-04-06
申请号：EP80200969.6
申请日：1980-10-14
发明人： Postma, Gosse Jan
IPC分类号： H01J29/96
CPC分类号： H01J29/96
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公开(公告)号：EP0027299A1
公开(公告)日：1981-04-22
申请号：EP80200969.6
申请日：1980-10-14
发明人： Postma, Gosse Jan
IPC分类号： H01J29/96
CPC分类号： H01J29/96
摘要： In order to reduce the interference radiation radiated by a colour television tube during operation, a resistor (19,12, 36) of approximately 5 kOhm to 100 kOhm is incorporated between the shadow mask (11, 20, 30) and the metal backing (9, 21, 35) of the display screen. The electromagnetic energy radiated by the tube in the frequency band of approximately 150 kHzto 1.5 MHz is reduced by 4 to 6 dB by such a resistor.
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公开(公告)号：EP2073247B1
公开(公告)日：2011-08-31
申请号：EP08020873.9
申请日：2008-12-02
CPC分类号： H01J29/085 , H01J29/96 , H01J31/127
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