公开(公告)号：US5259439A

公开(公告)日：1993-11-09

申请号：US892492

申请日：1992-06-03

申请人： Walter Blejde ,  William J. Folder ,  Hisahiko Fukase ,  William J. Sinclair

发明人： Walter Blejde ,  William J. Folder ,  Hisahiko Fukase ,  William J. Sinclair

IPC分类号： B22D11/06

CPC分类号： B22D11/0671 ,  B22D11/0622 ,  B22D11/064

摘要： Method and apparatus for casting metal strip in which molten metal is introduced between a pair of parallel casting rollers (16) via a tundish (18) and delivery nozzle (19). Casting rollers (16) are cooled so that shells solidify on the moving roller surfaces and are brought together at the nip between them to produce a solidified strip product (20) at the roller outlet. The tundish (18), delivery nozzle (19) and a pair of side closure plates (56) to confine the pool of metal on the casting rollers are separately preheated to working temperature and then rapidly brought into an operative assembly and casting is started before detrimental uneven or localized cooling of the preheated components can develop. To avoid material deterioration and metal flow irregularities due to oxidation on preheating, the delivery nozzle (19) and side closure plates (56) are provided with oxidation retarding coatings, for example in the form of ceramic glazing, or are preheated in an inert atmosphere.

摘要翻译： 用于铸造金属带的方法和装置，其中熔融金属通过中间包（18）和输送喷嘴（19）引入一对平行的流延辊（16）之间。 铸造辊（16）被冷却，使得壳体在移动的辊表面上固化并且在它们之间的辊隙处汇合在一起，以在辊出口处产生固化的带材产品（20）。 将中间包（18），输送喷嘴（19）和一对将金属池限制在铸辊上的侧封板（56）分别预热到工作温度，然后迅速地进入操作组件，并且在 可以发展预热组件的有害的不均匀或局部冷却。 为了避免在预热时氧化引起的材料劣化和金属流动不规则性，输送喷嘴（19）和侧封板（56）上设置有氧化延迟涂层，例如以陶瓷玻璃的形式，或者在惰性气氛中预热 。

公开(公告)号：US4364639A

公开(公告)日：1982-12-21

申请号：US181173

申请日：1980-08-25

申请人： William J. Sinclair ,  Josef Straus ,  Philip M. Garel-Jones

发明人： William J. Sinclair ,  Josef Straus ,  Philip M. Garel-Jones

IPC分类号： G02F1/13 ,  G02F1/1347

CPC分类号： G02F1/1347 ,  G02F1/1313

摘要： A variable attenuation electro-optic device has a lens for collimating light from an input fiber and for focussing light into an output fiber. The optical path of light passing through the device passes through a dynamic scattering liquid crystal cell whose optical transmissivity can be varied by varying an AC electric field applied across it. Reflective and transmissive embodiments are described using one or two lenses of the Selfoc.RTM. type. The applied AC introduces a frequency component into the attenuation which is suppressed to particularly adapt the device for use as an attenuator or enhanced and modulated to particularly adapt the device for use as a modulator.

摘要翻译： 可变衰减电光器件具有用于准直来自输入光纤的光并用于将光聚焦成输出光纤的透镜。 穿过器件的光的光路通过动态散射液晶单元，其光透射率可以通过改变施加在其上的AC电场而改变。 使用Selfoc TM型的一个或两个透镜来描述反射和透射实施例。 所施加的AC将频率分量引入衰减中，该衰减被抑制以特别适合用作衰减器的器件，或者被增强和调制以特别适合用作调制器的器件。

公开(公告)号：US4695125A

公开(公告)日：1987-09-22

申请号：US233500

申请日：1981-02-11

申请人： William J. Sinclair ,  Tibor F. I. Kovats ,  Jozef Straus

发明人： William J. Sinclair ,  Tibor F. I. Kovats ,  Jozef Straus

IPC分类号： B22D19/14 ,  G02B6/26 ,  G02B6/42 ,  G02B6/44 ,  G02B6/36

CPC分类号： B22D19/14 ,  G02B6/266 ,  G02B6/4248 ,  G02B6/4428

摘要： A passive fiber optic device and optical fiber connected to it are packaged in a solid block of a bismuth containing fusible alloy. The alloy exhibits appreciable expansion on solidification, negligible dimensional change after solidification, and a low thermal expansion coefficient. Coupled with its low melting point and glass wetting ability, the alloy is uniquely adapted for forming a hermetic seal with glass. By molding as a solid block, the packaging operation is rendered simple and rapid.

摘要翻译： 连接到其的被动光纤装置和光纤被包装在含有铋的熔融合金的固体块中。 该合金在凝固时显示明显的膨胀，凝固后尺寸变化可忽略不计，热膨胀系数低。 结合其低熔点和玻璃润湿能力，该合金独特地适用于用玻璃形成气密密封。 通过成型为固体块，包装操作变得简单快速。

公开(公告)号：US4702549A

公开(公告)日：1987-10-27

申请号：US641397

申请日：1984-08-16

申请人： Gary S. Duck ,  William J. Sinclair

发明人： Gary S. Duck ,  William J. Sinclair

IPC分类号： G02B6/26

CPC分类号： G02B6/266

摘要： A simple variable optical attenuator or the like suitable for printed circuit board mounting has an optical filter slab positionable between the arc-rounded aligned ends of two optical fibres. The filter slab is mounted on the wiper carrying reciprocating part of an adjustable potentiometer. The resistance value corresponds to the position of the filter slab, i.e. to the attenuation or other optical index as the case may be, once the unit has been calibrated.

摘要翻译： 适用于印刷电路板安装的简单可变光衰减器等具有可位于两根光纤的弧形对准端之间的光学滤光片。 过滤板安装在可调节电位计的往复运动部分的雨刷上。 一旦该单元被校准，电阻值对应于过滤板的位置，即对于衰减或其他光学指数（视情况而定）。

公开(公告)号：US4378144A

公开(公告)日：1983-03-29

申请号：US218482

申请日：1980-12-22

申请人： Gary S. Duck ,  Masamichi Yataki ,  Jozef Straus ,  William J. Sinclair

发明人： Gary S. Duck ,  Masamichi Yataki ,  Jozef Straus ,  William J. Sinclair

IPC分类号： G02B6/35 ,  G02B7/26

CPC分类号： G02B6/3558 ,  G02B6/3504 ,  G02B6/3508 ,  G02B6/352

摘要： An optical switch having a light input side and a light output side where there are a plurality of optical waveguides with light collimating lenses on one of the sides with the lenses in spaced positions and, on the other side there is an optical waveguide with a light collimating lens. To enable light to be transferred between the latter waveguide and any of the other lenses, it is movable to bring its lens into any of a plurality of switch positions, each corresponding to the position of one of the other lenses, and means is provided to move the lens selectively between positions. In preferred arrangements, the plurality of lenses are arranged around at least one pitch circle but a linear arrangement of lenses is also possible. An electric stepping motor is ideally used for the switching operation.

摘要翻译： 一种具有光输入侧和光输出侧的光开关，其中存在多个具有光准直透镜的光学波导，其中一个侧面上的透镜处于间隔开的位置，另一侧具有带有光的光波导 准直镜头 为了使光能够在后一个波导和任何其他透镜之间传输，可移动以使其透镜进入多个开关位置中的任何一个，每个开关位置对应于其它透镜之一的位置，并且装置被提供到 在位置之间选择性地移动镜头。 在优选的布置中，多个透镜围绕至少一个节圆布置，但透镜的线性排列也是可能的。 电动步进电机理想地用于开关操作。

公开(公告)号：US5172271A

公开(公告)日：1992-12-15

申请号：US798639

申请日：1991-11-26

申请人： William J. Sinclair

发明人： William J. Sinclair

IPC分类号： G02B6/32 ,  G02B6/42

CPC分类号： G02B6/327 ,  G02B6/32 ,  G02B6/4206

摘要： A graded index lens having one end-surface thereof adapted for connection to an optical fiber or the like characterized by an axially asymmetrically tapered end portion terminating in the end-surface.

摘要翻译： 一种分级折射率透镜，其具有适于连接到光纤等的一个端面，其特征在于终止在端表面中的轴向不对称的锥形端部。

公开(公告)号：US4284884A

公开(公告)日：1981-08-18

申请号：US138747

申请日：1980-04-09

申请人： John C. Dyment ,  Jozef Straus ,  Tibor F. I. Kovats ,  William J. Sinclair ,  Anthony J. Springthorpe

发明人： John C. Dyment ,  Jozef Straus ,  Tibor F. I. Kovats ,  William J. Sinclair ,  Anthony J. Springthorpe

IPC分类号： H01L33/00 ,  G02B27/00

CPC分类号： H01L27/15 ,  H01L25/167 ,  H01L2924/0002

摘要： An electro-optic device for stabilizing the output level of a Burrus-type light emitting diode (LED) utilizes a photodiode to monitor side emission from an active region of the LED. Side emission closely tracks top emission, which is launched into an output fiber. An electrical analog is derived from the monitored side emission and is applied in a feedback loop to control modulation level or bias current to the LED. In this way, peak optical output (for digital systems) or r.m.s. output and linearity (for analog systems) is stabilized. The monitoring photodiode and the LED may be spatially separate or may form a unitary structure.

摘要翻译： 用于稳定Burrus型发光二极管（LED）的输出电平的电光器件利用光电二极管监测来自LED的有源区域的侧发射。 侧面发射密切跟踪顶部发射，发射到输出光纤。 电气模拟源自监控侧发射，并且被施加在反馈环路中以控制到LED的调制电平或偏置电流。 以这种方式，峰值光输出（用于数字系统）或r.m.s. 输出和线性（用于模拟系统）稳定。 监控光电二极管和LED可以在空间上分离或者可以形成一体的结构。