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公开(公告)号：EP1102074A2
公开(公告)日：2001-05-23
申请号：EP00310191.2
申请日：2000-11-16
CPC分类号： G01R33/34084 , G01R33/285
摘要： A probe for magnetic resonance imaging apparatus comprises a dipole 9, 10, one arm of which includes an elongate receive coil 12. Outputs from both the dipole mode and the loop mode may be simultaneously received. The loop may be twisted for tracking.
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12.发明公开Endoscope suitable for magnetic resonance imaging 审中-公开Endoskop geeignetfürdie Magnetresonanzbildgebung
公开(公告)号：EP1101442A2
公开(公告)日：2001-05-23
申请号：EP00310192.0
申请日：2000-11-16
CPC分类号： A61B5/055 , A61B1/0052 , A61B1/0055
摘要： In an endoscope, the tip (1) which contains passages for viewing means and light guide means is made of plastics material, for MR compatibility purposes, and an r.f. receive coil (19) of the endoscope is provided with a fiducial (17) having its own r.f. receive coil (16), to make it possible to track movement of the r.f. receive coil.
摘要翻译： 在内窥镜中，包含用于观察装置和导光装置的通道的尖端（1）由塑料材料制成，用于MR兼容性目的。 内窥镜的接收线圈（19）设置有具有其自身r.f的基准（17）。 接收线圈（16），以便跟踪r.f.的移动。 接收线圈。
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公开(公告)号：EP1071978A1
公开(公告)日：2001-01-31
申请号：EP00905184.8
申请日：2000-02-22
CPC分类号： G02F1/01 , G02F1/0147 , G02F1/025 , G02F1/0344 , G02F1/0356 , G02F1/2255 , G02F1/2257 , G02F2001/0155
摘要： An optical modulator comprises an optical input (2); an optical output (14); at least one optical path (6, 8) connecting the optical input (2) and output (14) and means (10, 28) for selectively changing the optical characteristic of a part of the at least one optical path in response to a control signal (Vmod) such as to modulate light passing along the optical path. The optical path further includes a structure (16) which slows the passage of light along the part of the optical path to enhance the modulation effect of the modulator for a given length of optical path. Preferably the structure (16) comprises a sequence of coupled resonator structures in which each resonator structure is defined by a pair of partially reflecting planes (16a, 16b) which define an optical resonator cavity within the optical parts.
摘要翻译： 一种光调制器包括光输入（2）; 一个光输出（14）; 连接光输入（2）和输出（14）的至少一个光路（6,8）和用于响应于控制而选择性地改变至少一个光路的一部分的光学特性的装置（10,28） 信号（Vmod）以调制沿着光路传播的光。 该光路还包括一个结构（16），该结构减慢沿着光路部分的光的通过，以增强调制器对于给定长度的光路的调制效果。 优选地，结构（16）包括一系列耦合的谐振器结构，其中每个谐振器结构由在光学部件内限定光学谐振腔的一对部分反射平面（16a，16b）限定。
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公开(公告)号：EP1183510A1
公开(公告)日：2002-03-06
申请号：EP00911061.0
申请日：2000-03-17
CPC分类号： G01L1/242 , G01B11/18 , G01D5/35383
摘要： A strain sensor comprises an optical waveguide (6) having a plurality of reflecting structures (Bragg gratings) along its length. Each structure reflects light at a different characteristic wavelength (μ1 to μn+1) which changes in dependence on a change of physical length of at least part of the reflecting structure. The reflectivity of reflecting structures which reflect at characteristic wavelengths which are adjacent to each other (μ1 and μ2 or μn and μn+1) are configured to be different such that the intensity of light reflected from adjacent structures can be used to discriminate between them.
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公开(公告)号：EP0937322B1
公开(公告)日：2001-12-05
申请号：EP97919150.9
申请日：1997-09-18
发明人： FARRIES, Mark Cunningham , LEWANDOWSKI, Jan Jozef , ROBBINS, David James , WILLIAMS, Peter John
IPC分类号： H01S5/40
CPC分类号： H01S5/4031 , H01S5/1064
摘要： An array (10) of tapered semiconductor lasers having a straight region (14) and a tapered region (16) is provided. The lasers (12) are ridge loaded structures which are formed on a single chip. The lasers (12) operate in the near infrared and are suitable for materials processing.
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公开(公告)号：EP1112596A1
公开(公告)日：2001-07-04
申请号：EP99929524.9
申请日：1999-07-01
IPC分类号： H01L31/10 , H01L31/101 , H01L31/108
CPC分类号： G02F1/0123 , G01J1/42 , G02F1/2257
摘要： A photonic integrated device (1) comprises a waveguide (14, 16) of semiconductor material and a detector (26) for measuring optical power of light travelling along the waveguide (14, 16). The detector which is monolithically integrated into the device measures a photocurrent on an electrode (26) which has been generated in the waveguide by two photon absorption.
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公开(公告)号：EP1060537A1
公开(公告)日：2000-12-20
申请号：EP99962442.2
申请日：1999-12-23
发明人： Holden, Anthony James , Robbins, David James , Stewart, William James , Wiltshire, Michael Charles Keogh , Pendry, John Brian
IPC分类号： H01Q15/00
CPC分类号： H01Q15/0013 , H01Q19/062
摘要： The performance of a microwave antenna is improved by incorporating a fine wire dielectric material (16) which has a dielectric constant ε of less than unity at microwave frequencies. The effect of the dielectric material (16) is to refract microwaves (20) so that the antenna (14) appears to have a larger aperture than that of its physical size. Furthermore, by selecting the transmission cut off frequency of the dielectric material, two antenna elements which are intended to operate within different frequency bands can be mounted one behind the other.
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公开(公告)号：EP1216491A1
公开(公告)日：2002-06-26
申请号：EP00937053.7
申请日：2000-06-07
CPC分类号： H01P1/182
摘要： A steerable phased array antenna has a plurality of antenna elements each having an associated phase-shifter. The phase-shifters have actuators which change shape in response to electrical signals and in so doing cause either a path length of signals to be radiated from the antenna elements to change or a propagation constant of a transmitting medium to change, thereby introducing phase shift into the respective signal. The actuators comprise tubular stator (22) of piezoelectric or magnetostrictive material; a piston (26) coaxially disposed within the stator and a bearing member (24) disposed between the stator (22) and piston (26) which are configured such that the stator (22) distorts in an approximately frustro-conical manner in response to said control signal thereby causing the bearing member (24) to roll axially along the stator (22) and the movement of the bearing member (24) in turn causing axial movement of the piston (26).
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公开(公告)号：EP0806589B1
公开(公告)日：2002-03-13
申请号：EP97302722.0
申请日：1997-04-21
CPC分类号： F16F15/005 , G05D19/02 , G10K11/178 , G10K2210/1291 , G10K2210/3217 , G10K2210/501 , H05K1/0271 , H05K13/0069 , H05K2201/10083 , H05K2201/2045
摘要： An active insulation damping device comprising a combined piezoelectric actuator (2) and accelerometer (7) adapted to be mounted on a planar member (1) the vibration of what is to be damped.
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