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公开(公告)号:EP0802557A1
公开(公告)日:1997-10-22
申请号:EP97302301.3
申请日:1997-04-03
申请人: Eev Limited
发明人: Griggs, Alan
IPC分类号: H01J23/027
CPC分类号: H01J23/027
摘要: A collector for an electron beam tube includes a ceramic cylinder 1 within which are located rings 3 of a first material, such as copper and 4 of a second material, such as molybdenum, arranged alternately along the axis X-X of the cylinder 1. The ratio of the axial lengths of the rings at the inner surface of the ceramic cylinder 1 is selected so as to provide temperature compensation. The rings 4 surround part of the adjacent rings 3 to confine thermal expansion in a radial direction.
摘要翻译: 用于电子束管的收集器包括陶瓷圆筒1,其中定位有沿着圆柱体1的轴线XX交替布置的诸如铜的第一材料的环3和诸如钼的第二材料的第四材料4。 选择在陶瓷圆筒1的内表面处的环的轴向长度以提供温度补偿。 环4围绕相邻环3的一部分以限制径向的热膨胀。
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公开(公告)号:EP0753879A2
公开(公告)日:1997-01-15
申请号:EP96304941.6
申请日:1996-07-04
申请人: EEV LIMITED
发明人: Pickering,Alan Hugh
摘要: An inductive output tube, such as an IOT has a generally cylindrical input cavity within which an annular channel 32 is defined by part of the cavity wall 30 and other walls 33 and 34 to give a U-shaped cross-section. The channel 32 is substantially wholly filled with high frequency energy absorbing material such as ferrite loaded silicone rubber 35. This prevents unwanted oscillations and because of the large surface area of the channel in contact with the material 35 it is particularly efficient. Other configurations and locations of the channel are also possible and the absorbing material may occupy only part of the channel providing that it is in contact with the surfaces of the channel walls.
摘要翻译: 诸如IOT的感应输出管具有大致圆柱形的输入腔(7),其中环形通道(32)由空腔壁(30)的一部分和其它壁(33和34)限定,其中U形环 形横截面。 通道(32)基本上完全填充有高频能量吸收材料,例如铁氧体负载的硅橡胶(35)。 这防止了不期望的振荡,并且由于与材料(35)接触的通道的大的表面积是特别有效的。 通道(32)的其它构造和位置也是可能的,并且吸收材料可以仅占据通道(32)的一部分,只要它与通道壁(30,33,34)的表面接触即可。
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公开(公告)号:EP0624893A3
公开(公告)日:1995-10-11
申请号:EP94302505.6
申请日:1994-04-08
申请人: EEV LIMITED
IPC分类号: H01J23/087 , H01F7/02
CPC分类号: H01J23/0873 , H01F7/0278 , H01J2223/087 , H01J2225/10 , H01J2225/34
摘要: In a magnet arrangement suitable for providing PPM focusing, cylindrical magnets 4 have inclined inner faces 6 and 7 meeting at an edge 8. Pole pieces 9 are contiguous with the inclined faces 6 and 7 to provide a relatively large field within the volume enclosed by the arrangement. Preferably, the magnet is of a type II magnetic material.
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公开(公告)号:EP0425210B1
公开(公告)日:1995-08-23
申请号:EP90311528.5
申请日:1990-10-19
申请人: EEV LIMITED
IPC分类号: G09G3/36
CPC分类号: G09G3/36 , G09G2320/029 , G09G2320/041 , G09G2320/043 , G09G2360/145
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公开(公告)号:EP0589019A1
公开(公告)日:1994-03-30
申请号:EP93908036.0
申请日:1993-04-13
申请人: EEV LIMITED
CPC分类号: H01J23/213 , H01J23/20 , H01J23/40 , H01J25/587
摘要: Magnétron comprenant une cathode (2) ainsi qu'une anode (1) possédant une pluralité de cavités résonnantes (4) espacées sur sa circonférence. Un agencement de sortie comporte une cavité résonnante cylindrique (6) disposée coaxialement à l'une des extrémités de la pluralité de cavités résonnantes (4) et à l'intérieur d'un champ magnétique axial. Un moyen assure le couplage d'énergie directement entre chaque paire de cavités (4) résonnantes adjacentes et la cavité cylindrique (6) ainsi que le transfert d'énergie de la cavité cylindrique (6) depuis le magnétron. L'utilisation de la cavité résonnante (6) cylindrique permet d'assurer un couplage symétrique de l'énergie de chaque paire de cavités adjacentes.
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公开(公告)号:EP0343795B1
公开(公告)日:1994-01-26
申请号:EP89304286.1
申请日:1989-04-28
申请人: EEV LIMITED
IPC分类号: H01S3/03
CPC分类号: H01S3/031
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公开(公告)号:EP0519589A3
公开(公告)日:1993-12-01
申请号:EP92303610.7
申请日:1992-04-22
申请人: EEV LIMITED
CPC分类号: H04N5/3765 , H04N5/3577
摘要: In a pulse generating circuit each output pulse is produced in response to a counter counting a predetermined number of clock pulses. While the same number of pulses are counted each time, the intermediate count states used to produce consecutive output pulses are different. This reduces or eliminates coherent interference produced by the counter during counting which would otherwise give rise to visually intrusive banding (Fig. 1). When used to generate timing pulses for a video imager, the circuit produces a randomly or pseudo-randomly scattered interference pattern (Fig. 2). While the actual amount of interference is unchanged, the distributed pattern is subjectively less objectionable than the visually intrusive regular banded interference pattern produced by a conventional counter which always uses the same count sequence.
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公开(公告)号:EP0329269B1
公开(公告)日:1993-05-26
申请号:EP89300156.0
申请日:1989-01-09
申请人: EEV LIMITED
CPC分类号: H01J23/05
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公开(公告)号:EP0519589A2
公开(公告)日:1992-12-23
申请号:EP92303610.7
申请日:1992-04-22
申请人: EEV LIMITED
CPC分类号: H04N5/3765 , H04N5/3577
摘要: In a pulse generating circuit each output pulse is produced in response to a counter counting a predetermined number of clock pulses. While the same number of pulses are counted each time, the intermediate count states used to produce consecutive output pulses are different. This reduces or eliminates coherent interference produced by the counter during counting which would otherwise give rise to visually intrusive banding (Fig. 1).
When used to generate timing pulses for a video imager, the circuit produces a randomly or pseudo-randomly scattered interference pattern (Fig. 2). While the actual amount of interference is unchanged, the distributed pattern is subjectively less objectionable than the visually intrusive regular banded interference pattern produced by a conventional counter which always uses the same count sequence.摘要翻译: 在脉冲发生电路中,响应于计数预定数量的时钟脉冲的计数器产生每个输出脉冲。 虽然每次都对相同数量的脉冲进行计数,但是用于产生连续输出脉冲的中间计数状态是不同的。 这会减少或消除计数过程中计数器产生的相干干扰,否则会导致视觉侵入性条带(图1)。 当用于产生用于视频成像器的定时脉冲时,电路产生随机或伪随机散射的干涉图案(图2)。 虽然实际的干扰量不变,但是分布式模式主观上比总是使用相同计数序列的常规计数器产生的视觉侵入式常规带状干扰图形更不令人反感。
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公开(公告)号:EP0474349A3
公开(公告)日:1992-05-13
申请号:EP91306558.7
申请日:1991-07-18
申请人: EEV LIMITED
IPC分类号: H01L31/042 , H01L31/052
CPC分类号: H01L31/0547 , B64G1/443 , H01L31/0488 , H01L31/0504 , H01L31/0508 , Y02E10/52
摘要: A solar cell arrangement comprises two transparent cover plates 33 and 34 having recesses within which are located interconnection means which interconnect solar cells. By locating the interconnection means within the recesses the solar cells can be intimately bonded without an adhesive to the cover plates 33 and 34 making the arrangement lighter.
摘要翻译: 一个太阳能电池装置包括两个具有凹槽的透明盖板33和34,其中定位有互连太阳能电池的互连装置。 通过将互连装置定位在凹槽内,太阳能电池可以紧密地粘合到盖板33和34上,而不需要粘合剂使布置更轻。
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