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公开(公告)号:US06265018B1
公开(公告)日:2001-07-24
申请号:US09387607
申请日:1999-08-31
IPC分类号: C03B3707
CPC分类号: G02B6/02038 , B29C47/00 , B29C47/0014 , B29D11/00682 , B29D11/00721
摘要: Fabricating graded index plastic optical fiber by diffusing a high molecular weight dopant within a step index plastic optical fiber after the step index plastic optical fiber has been drawn from a preform using a conventional draw tower in a first embodiment. Also, the step index plastic optical fiber may be fabricated by extruding one material circumferentially around another material, e.g., by use of a concentric nozzle. The dopant is diffused after the drawing or extruding of the step index plastic optical fiber by heating the plastic optical fiber to a temperature that causes a high rate of diffusion state while measuring the transmission bandwidth of the plastic optical fiber. When the predetermined specified transmission bandwidth is measured, the plastic optical fiber is immediately returned to an ambient temperature. In addition, the plastic optical fiber may be gradually heated to an equilibrium temperature that is just below the temperature required to produce the high rate of diffusion state. Once the equilibrium temperature has been achieved, additional heating is carried out to raise the temperature to that required to produce the high rate of diffusion and the transmission bandwidth is tested.
摘要翻译: 在第一实施例中,使用常规牵引塔从预成型件中取出阶梯折射率塑料光纤之后,通过在阶跃折射率塑料光纤中扩散高分子量掺杂剂来制造渐变折射率塑料光纤。 而且,阶跃折射率塑料光纤可以通过例如通过使用同心喷嘴将一种材料周向地围绕另一种材料周向地挤出来制造。 通过在塑料光纤的传输带宽测量的同时,通过将塑料光纤加热到导致高扩散速率的温度,在拉伸或挤出阶梯折射率塑料光纤之后,掺杂剂扩散。 当测量预定的指定传输带宽时,塑料光纤立即返回到环境温度。 此外,塑料光纤可以逐渐加热到刚好低于产生高扩散状态速率所需的温度的平衡温度。 一旦达到平衡温度,进行额外的加热,将温度提高到产生高扩散速率所需的温度,并测试传输带宽。
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公开(公告)号:US4187867A
公开(公告)日:1980-02-12
申请号:US947925
申请日:1978-10-02
申请人: Charles J. Sherman
发明人: Charles J. Sherman
CPC分类号: B65H23/24 , D06B23/04 , B65H2406/111
摘要: A fluid bearing for supporting, independently of each other, a plurality of webs. The bearing comprises a housing, for containing a fluid within its interior, having an outer surface for cooperating with a surface of each web of the plurality of webs. A guide flange is provided on the outer surface, defining with the outer surface a support channel. The guide flange maintains the plurality of webs within the boundaries of the defined support channel. A fluid outlet and a fluid inlet are provided for passing the fluid from the interior of the housing through the outer surface, within the channel, to form a fluid layer thereover having a fluid spike therein, for independently supporting each web.
摘要翻译: 用于彼此独立地支撑多个腹板的流体轴承。 轴承包括用于在其内部容纳流体的壳体,具有用于与多个腹板的每个腹板的表面配合的外表面。 引导凸缘设置在外表面上,用外表面限定支撑通道。 引导凸缘将多个腹板保持在限定的支撑通道的边界内。 流体出口和流体入口被提供用于使流体从壳体内部通过通道内的外表面,以形成其上具有流体尖峰的流体层,用于独立地支撑每个腹板。
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公开(公告)号:US06698937B2
公开(公告)日:2004-03-02
申请号:US09903029
申请日:2001-07-11
IPC分类号: G02B636
CPC分类号: H05K7/1409 , G02B6/3825 , G02B6/3897 , G02B6/4246 , G02B6/4292
摘要: The present invention relates to fiber optics. In this regard, embodiments of the invention may be construed as providing interconnection systems for optical media. An embodiment of the present invention includes an optical circuit pack assembly, an optical circuit board, a child board, an optical device having a front end and a back end, an optical connector, and an optical connector mechanism. As such, the optical device is mounted on the child board and the child board is in turn slidably affixed to the optical circuit board. The optical connector is mounted on the optical circuit pack assembly such that as an operator inserts the optical circuit board into the optical circuit pack assembly, the optical connector and optical device are obscured from view. Operation of the optical connector mechanism causes the child board to move along a longitudinal axis of the child board, thereby causing the optical connector and the optical device to become operably engaged.
摘要翻译: 本发明涉及光纤。 在这方面,本发明的实施例可以被解释为提供用于光学介质的互连系统。 本发明的实施例包括光电路板组件,光电路板,子板,具有前端和后端的光学装置,光学连接器和光学连接器机构。 因此,光学装置安装在儿童板上,并且儿童板又可滑动地固定在光电路板上。 光学连接器安装在光电路板组件上,使得当操作者将光学电路板插入到光学电路组件中时,光学连接器和光学器件被遮蔽。 光连接器机构的操作使得儿童板沿着子板的纵向轴线移动,从而使光学连接器和光学装置变得可操作地接合。
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公开(公告)号:US06431763B1
公开(公告)日:2002-08-13
申请号:US09548951
申请日:2000-04-13
IPC分类号: G02B636
CPC分类号: G02B6/4292 , G02B6/3644 , G02B6/3865 , G02B6/3887
摘要: An optical connector assembly includes a connector body having an inner wall defining a bore extending longitudinally through the connector body and shaped to receive an optical fiber. A fiber-retaining mechanism is disposed in the connector body for retention of the optical fiber received in the bore by frictionally engaging an outer circumferential surface of the optical fiber to thereby restrain unintended longitudinal displacement of the optical fiber relative to the bore.
摘要翻译: 光学连接器组件包括连接器主体,该连接器主体具有内壁,该内壁限定纵向延伸穿过连接器本体并且成形为容纳光纤的孔。 纤维保持机构设置在连接器主体中,用于通过摩擦地接合光纤的外圆周表面来保持容纳在孔中的光纤,从而抑制光纤相对于孔的非预期的纵向位移。
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公开(公告)号:US06402393B1
公开(公告)日:2002-06-11
申请号:US09515998
申请日:2000-02-29
IPC分类号: G02B636
CPC分类号: G02B6/4292 , G02B6/3825 , G02B6/3877 , G02B6/3878 , G02B6/3893 , G02B6/3897 , G02B6/4246
摘要: An interconnection system is shown that enables an optical circuit board 300, having a number of optical devices 400, 500, to be easily connected to and disconnected from a backplane 100. The optical devices are positioned along a side edge 311 of a printed wiring board 310 and are adapted to interconnect with a like number of optical connectors 200 that are arrayed on the backplane in a row or column. Each optical plug is held in a holder 120, which is retained in backplane 100 by a clip 110. Each of the optical connectors is a plug that includes a ferrule 24, which encloses an optical fiber and projects from one end of the plug. Each of the edge-mounted optical devices includes a jack receptacle 410, 510 at its front end and has a cavity 401, 501 that is shaped to receive the optical plug. All of the jack receptacles are similarly shaped. Each cavity further includes a boss 421, 521 for receiving the ferrule. The plugs and jack receptacles are arranged to engage, but not interlock with, each other. The optical devices include two or more downward-extending pins 430, 530 that are received in corresponding holes 334, 335 in the printed wiring board for accurate positioning. Illustratively, optical device 400 includes a jack receptacle in its front-end portion 410 and its back-end portion 420; whereas optical device 500 includes a jack receptacle in its front-end portion 510 and one or more transducers 550, for converting between electrical and optical signals, in its back-end portion 520.
摘要翻译: 示出了互连系统,其使具有多个光学装置400,500的光电路板300能够容易地连接到背板100并从背板100断开。光学装置沿着印刷线路板的侧边缘311 并且适于与排列在行或列的背板上的相同数量的光学连接器200互连。 每个光学插头保持在保持器120中,保持器120通过夹子110保持在背板100中。每个光学连接器是包括封套光纤并从插头的一端突出的套圈24的插头。 每个边缘安装的光学装置在其前端包括插孔插座410,510,并具有形成为容纳光学插头的空腔401,501。 所有插孔的形状都相似。 每个腔还包括用于接纳套圈的凸台421,521。 插头和插座插座被布置成彼此接合但不互锁。 光学装置包括两个或更多个向下延伸的销430,530,其被接收在印刷线路板中的相应孔334,335中,用于精确定位。 说明性地,光学装置400在其前端部分410及其后端部分420中包括插座, 而光学装置500在其前端部分510中包括插座,并且在其后端部分520中包括用于在电信号和光信号之间转换的一个或多个换能器550。
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公开(公告)号:US5800861A
公开(公告)日:1998-09-01
申请号:US288713
申请日:1988-12-28
CPC分类号: C09D5/32
摘要: Infrared absorbing compositions useful as high solid coatings comprising 5-50% of a volatile solvent portion and 50-95% of a non-volatile portion which comprises a film-forming binder having dispersed within the binder opacifying polymeric beads and an infrared radiation absorbing pigment selected from the group consisting of copper phosphate, basic copper phosphate, copper pyrophosphate, tungsten trioxide and mixtures thereof.
摘要翻译: 可用作高固体涂层的红外吸收组合物,其包含5-50%的挥发性溶剂部分和50-95%的非挥发性部分,其包含分散在粘合剂中的成膜粘合剂,所述成膜粘合剂不透明聚合物珠粒和红外线吸收颜料 选自磷酸铜,碱式磷酸铜,焦磷酸铜,三氧化钨及其混合物。
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公开(公告)号:US06500353B1
公开(公告)日:2002-12-31
申请号:US09344638
申请日:1999-06-25
IPC分类号: B29D1100
CPC分类号: G02B6/25 , B24B19/226
摘要: Finishing the end of a plastic optical fiber by a device having a semi-rigid or rigid base, a solvent liner for absorbing and holding a solvent, and a re-attachable pull-off cover for keeping the solvent from evaporating when not in use. To polish the end of a plastic optical fiber, the cover is peeled off, the end of the optical fiber is contacted with the solvent liner such that solvent is transferred to the end of the optical fiber, the cover may be reapplied (using a pressure sensitive adhesive integral to either the bottom of the peel-off cover or the top of the liner), the excessive solvent, if any, is removed by using an appropriate swab, and the end of the plastic optical fiber is allowed to return to its normal state. The solvent temporarily dissolves the surface layer of the end of the optical fiber. The resulting surface tension automatically polishes the end of the optical fiber.
摘要翻译: 通过具有半刚性或刚性基底的装置,用于吸收和保持溶剂的溶剂衬里以及可再附着的脱落盖来完成塑料光纤的端部,以在不使用时保持溶剂不会蒸发。 为了抛光塑料光纤的端部,将盖剥离,光纤的端部与溶剂衬里接触,使得溶剂转移到光纤的端部,可以重新施加盖(使用压力 敏感粘合剂整合到剥离盖的底部或衬垫的顶部),通过使用适当的棉签去除过量的溶剂(如果有的话),并且使塑料光纤的端部返回到其 正常状态 溶剂暂时溶解光纤末端的表面层。 所得的表面张力自动抛光光纤的端部。
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公开(公告)号:US06262363B1
公开(公告)日:2001-07-17
申请号:US09224601
申请日:1998-12-31
IPC分类号: H05K900
CPC分类号: H05K9/0015
摘要: An arrangement for electromagnetically shielding a circuit carrying substrate includes first and second shielding members and a plurality of elastically deformable shielding connectors. The first shielding member has first and second dimensions exceeding first and second dimensions defined by the circuit and is disposed on a first side of the circuit. The second shielding member also has first and second dimensions exceeding first and second dimensions defined by the circuit and is disposed on a second side of the circuit. The first and second shielding members define at least one slot therebetween. Each of the plurality of shielding connectors is both plastically deformable and electrically conductive, and furthermore extends between the first shielding member and the second shielding member. The plurality of shielding connectors are disposed within and throughout said slot and spaced apart by a distance that is less than one-fourth the wavelength of an effective operating frequency of the circuit.
摘要翻译: 用于电磁屏蔽电路承载衬底的布置包括第一和第二屏蔽构件以及多个可弹性变形的屏蔽连接器。 第一屏蔽构件具有超过由电路限定的第一和第二尺寸的第一和第二尺寸,并且设置在电路的第一侧上。 第二屏蔽构件还具有超过由电路限定的第一和第二尺寸的第一和第二尺寸,并且设置在电路的第二侧上。 第一和第二屏蔽构件在其间限定至少一个狭槽。 多个屏蔽连接器中的每一个都是可塑性变形和导电的,并且还在第一屏蔽构件和第二屏蔽构件之间延伸。 多个屏蔽连接器设置在所述槽内并贯穿所述槽并隔开距离小于电路的有效工作频率波长的四分之一。
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公开(公告)号:US4887217A
公开(公告)日:1989-12-12
申请号:US688797
申请日:1985-01-04
摘要: A process for shading paint to match the color of a standard paint which process involves the use of the determination of the theoretical dry color values of the paint being manufactured and the addition of the appropriate amounts of the components of the paint which must be added to provide a final dry color which falls within the prescribed color tolerance.
摘要翻译: 用于将油漆着色以匹配标准油漆的颜色的方法,该方法涉及使用所确定的正在制造的油漆的理论干燥颜色值的确定,以及将必须加入的适当量的油漆组分的添加量 提供落在规定的颜色公差范围内的最终干燥颜色。
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公开(公告)号:US4298237A
公开(公告)日:1981-11-03
申请号:US105501
申请日:1979-12-20
CPC分类号: H01R12/82 , H05K1/117 , H01R13/44 , H01R2107/00 , H01R24/58 , H05K2201/09409 , H05K2201/2027 , H05K2203/0594
摘要: Interconnection apparatus for electrically connecting the contact areas (22) of a printed wiring board (20) and the contact springs (e.g., 33, 34) of a backplane (10) for increasing the board terminations without increasing the width of the board leading edge (21). A coordinate array of contact areas (22) is provided at least on one side of the leading portion of the board (20) which corresponds to an array of contacting surfaces of the springs (e.g., 33, 34) extending from a backplane (10). A mask (e.g., 23) having an array of apertures (24) corresponding to the contact area array overlies the leading portion (21) of the board (20). The mask apertures (e.g., 24) are individually dimensioned and formed within the array rows to accept therethrough only correspondingly formed individual contact springs (e.g., 33, 34) of the spring rows. Accordingly, as the board (20) is inserted in opposition to the contact springs, individual ones of the latter can only make electrical contact with their corresponding board (20) contact areas (22) when the board is fully inserted, the spring and contact area mating then occurring simultaneously.
摘要翻译: 用于电连接印刷电路板(20)的接触区域(22)和背板(10)的接触弹簧(例如,33,34)的互连装置,用于增加电路板端接而不增加电路板前缘的宽度 (21)。 接触区域(22)的坐标阵列设置在板(20)的引导部分的至少一侧,其对应于从底板(10)延伸的弹簧(例如,33,34)的接触表面的阵列 )。 具有对应于接触区域阵列的孔阵列(24)的掩模(例如23)覆盖在板(20)的引导部分(21)上。 掩模孔(例如,24)分别尺寸设计并形成在阵列行内,从而仅通过弹簧列的对应形成的单独的接触弹簧(例如,33,34)来接纳。 因此,当板(20)相对于接触弹簧插入时,后者中的各个仅当板完全插入时才能与其对应的板(20)接触区域(22)电接触,弹簧和触点 区域交配然后同时发生。
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