专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US4025784A Device for detecting focussing error in an optical reader head 失效
标题翻译：用于检测光学读取器头中的聚焦误差的装置
公开(公告)号：US4025784A
公开(公告)日：1977-05-24
申请号：US598164
申请日：1975-07-22
申请人： Jean-Claude Lehureau , Claude Bricot
发明人： Jean-Claude Lehureau , Claude Bricot
IPC分类号： G06K7/015 , G02B7/28 , G02B7/34 , G11B7/09 , G01J1/20
CPC分类号： G11B7/0917 , G02B7/34 , G11B7/0908
摘要： A device for detecting the error in focussing a read-out beam on the impression. Two photodetector cells located respectively in front of and behind the optical axis of the system, in relation to the direction of transfer, produce two electrical signals the difference between which is the read-out signal, a control signal being obtained by a comparison of the phases of the two signals, one of which is phase-shifted so that the optimum focussing point corresponds to zero phase-shift.
摘要翻译：用于检测将读出光束聚焦在印象上的误差的装置。分别位于系统的光轴前后的两个光电检测器单元相对于传送方向产生两个电信号，其差是读出信号，控制信号是通过比较两个信号的相位，其中之一是相移，使得最佳聚焦点对应于零相移。

22. 发明申请

US20070102629A1 Device for detecting non-metallic objects located on a human subject 审中-公开
标题翻译：用于检测位于人类受试者上的非金属物体的装置
公开(公告)号：US20070102629A1
公开(公告)日：2007-05-10
申请号：US10583368
申请日：2004-12-08
申请人： Matthieu Richard , Jean-Claude Lehureau , Gerard Cachier
发明人： Matthieu Richard , Jean-Claude Lehureau , Gerard Cachier
IPC分类号： H01J40/14
CPC分类号： G01S13/887 , G01S7/024 , G01S7/414 , G01S13/04 , G01V8/005
摘要： The field of the invention is that of devices for detecting objects concealed on human subjects. These devices are more particularly dedicated to the surveillance and protection of airport areas and transport airplanes. Currently, the devices rely either on X-ray detection or on microwave imaging. In the former case, the system can prove hazardous to human beings, and in the other case, the device raises ethical problems. The invention proposes a device whose operation relies on the reflective properties of the microwave signals polarized by the suspect objects that we are seeking to detect. This device can be portable or installed on security gates. This technique is simple to design, inexpensive, does not require any great computing power and is very well suited to the objects to be detected. The complete measurement is extremely quick and requires no sophisticated measuring instrument.
摘要翻译：本发明的领域是用于检测隐藏在人类对象上的物体的领域。这些装置更特别致力于监视和保护机场区域和运输机。目前，这些设备依赖于X射线检测或微波成像。在前一种情况下，该系统可以证明对人有害，另一种情况下，该装置会引起道德问题。本发明提出了一种装置，其操作依赖于我们正在寻求检测的可疑物体所偏振的微波信号的反射特性。该设备可以便携式或安装在安全门上。该技术设计简单，价格低廉，不需要任何伟大的计算能力，非常适合于要检测的对象。完整的测量非常快，不需要复杂的测量仪器。

23. 发明申请

US20070001689A1 Detector of objects by microwave frequency echo analysis 失效
公开(公告)号：US20070001689A1
公开(公告)日：2007-01-04
申请号：US11435281
申请日：2006-05-17
申请人： Nicolas Millet , Jean-Claude Lehureau
发明人： Nicolas Millet , Jean-Claude Lehureau
IPC分类号： G01R27/04
CPC分类号： G01V8/005 , G01N22/00 , G01S13/04
摘要： The field of the invention is that of devices for detecting non-metallic objects concealed on human subjects. These devices are more particularly dedicated to the surveillance and protection of reserved access areas, such as airport areas. The device according to the invention comprises a portable detector comprising a transmitter and a receiver of microwave frequency signals disposed in an enclosure of chaotic geometry including a plurality of measurement holes. The microwave frequency signal measured by this detector depends on the nature of the objects disposed under the holes. A processing device linked to this detector is used to correlate the measured signals with prerecorded signals. When the correlation exceeds a certain threshold corresponding to the presence of suspect objects, an alarm is generated.

24. 发明授权

US07130053B2 Device for measuring a non-reciprocal effect, in particular fiber-optic gyro 失效
标题翻译：用于测量不可逆效应的装置，特别是光纤陀螺仪
公开(公告)号：US07130053B2
公开(公告)日：2006-10-31
申请号：US10476248
申请日：2002-05-14
申请人： Jean-Claude Lehureau
发明人： Jean-Claude Lehureau
IPC分类号： G01C19/72
CPC分类号： G01C19/72
摘要： The invention relates to the field of devices for measuring a nonreciprocal effect and especially to the field of fiber-optic gyrometers. Disclosed a device for measuring a nonreciprocal effect comprising a light source, a monomode spatial filter, a Sagnac ring having two branches, a light splitter, and a light detector. The splitter is a polarization splitter. The filter is nonpolarizing. The detector includes a system for analyzing the polarization state. The light splitter devides the light over branches of the ring. The invention can be applied to other devices for measuring a nonreciprocal effect, especially fiber-optic magnetometers.
摘要翻译：本发明涉及用于测量不可逆效应的装置领域，特别涉及光纤陀螺仪领域。公开了一种用于测量不可逆效应的装置，包括光源，单模空间滤光器，具有两个分支的Sagnac环，光分离器和光检测器。分路器是偏振分离器。过滤器是非极化的。检测器包括用于分析偏振状态的系统。光分路器将光束分散在环的分支上。本发明可以应用于用于测量不可逆效应的其它装置，特别是光纤磁力计。

25. 发明申请

US20060104103A1 Method for optical authentication and identification of objects and device therefor 审中-公开
标题翻译：用于光学认证和识别物体的方法及其装置
公开(公告)号：US20060104103A1
公开(公告)日：2006-05-18
申请号：US10539767
申请日：2003-12-10
申请人： Joseph Colineau , Jean-Claude Lehureau , Renaud Binet
发明人： Joseph Colineau , Jean-Claude Lehureau , Renaud Binet
IPC分类号： G11C5/06
CPC分类号： G07D7/121 , G03H2001/0458 , G07D7/0032
摘要： The method in accordance with the invention consists in illuminating with coherent light a volume-wise at least partially scattering surface of reference objects under specified illumination conditions, in recording the speckle patterns thus obtained for various nominal values of illumination parameters and in a range of values around these nominal values, then, upon the verification of other objects or of the same objects, in illuminating these objects under the same nominal conditions and in comparing each time the speckle pattern thus obtained with those which were recorded and in retaining the objects if their speckle pattern corresponds to one of those that was recorded.
摘要翻译：根据本发明的方法包括：在指定的照明条件下，用相干光照射参考物体的体积方向的至少部分散射表面，记录由此获得的散斑图案，用于各种照明参数的标称值和值范围在这些标称值周围，然后，在验证其他物体或相同物体时，在相同标称条件下照亮这些物体，并且每次比较所获得的散斑图案与记录的斑点图案和保留物体时斑点图案对应于记录的那些。

26. 发明授权

US06252613B1 Matrix display addressing device 失效
标题翻译：矩阵显示寻址装置
公开(公告)号：US06252613B1
公开(公告)日：2001-06-26
申请号：US09077379
申请日：1998-05-27
申请人： Thierry Borel , Antoine Dupont , Stéphane Garnier , Benoît Le Ludec , Jean-Claude Lehureau
发明人： Thierry Borel , Antoine Dupont , Stéphane Garnier , Benoît Le Ludec , Jean-Claude Lehureau
IPC分类号： G06F1316
CPC分类号： G09G3/2003 , G09G3/28 , G09G3/3607 , G09G5/393 , G09G5/399 , G09G2300/0452 , G09G2310/0205 , G09G2310/0297
摘要： A device for addressing a matrix screen such as a screen of the LCD or plasma type having a memory stage receiving, via a demultiplexing stage a plurality of sequences of digital data representing the previously digitized luminance video signals, and delivering the luminance video signals to a multiplexing stage designed to select a sequence of digital data corresponding to a given combination of subpixels from amongst the plurality of sequences of digital data previously stored in the memory stage.
摘要翻译：用于寻址诸如LCD或等离子体类型的屏幕的矩阵屏幕的设备，其具有存储级，其经由解复用级接收表示先前数字化的亮度视频信号的多个数字数据序列，并将亮度视频信号传送到多路复用级被设计为从先前存储在存储级中的多个数字数据序列中选择对应于子像素的给定组合的数字数据序列。

27. 发明授权

US6157471A Display panel with compensation by holographic birefringent films 失效
标题翻译：具有全息双折射膜补偿的显示面板
公开(公告)号：US6157471A
公开(公告)日：2000-12-05
申请号：US284238
申请日：1999-04-14
申请人： Laurent Bignolles , Frederic de Lauzun , Bertrand Morbieu , Laurent Georges , Jean-Claude Lehureau
发明人： Laurent Bignolles , Frederic de Lauzun , Bertrand Morbieu , Laurent Georges , Jean-Claude Lehureau
IPC分类号： G02F1/1335 , G02B5/18 , G02B5/30 , G02B5/32 , G02F1/13363
CPC分类号： G02B5/1809 , G02B5/3083 , G02F1/133632 , G02F1/133634
摘要： A display panel having compensation using holographic birefringent films. Due to the natural birefringence of liquid crystals, contrast suffers when a liquid crystal cell is viewed at an oblique incident angle. Compensation devices made of birefringent media are used to correct this deficiency. The compensation devices include at least one film, the birefringence of which is induced by the recording of a volume hologram consisting of parallel fringes. The choice of the optical birefringent axes depends only on the orientation of the fringes so that it is easy to achieve compensation using uniaxial films which are inclined with respect to the plane of the film.
摘要翻译： PCT No.PCT / FR97 / 01811 Sec。 371 1999年4月14日第 102（e）1999年4月14日PCT 1997年10月10日PCT公布。公开号WO98 / 16866 日期：1998年4月23日具有使用全息双折射膜补偿的显示面板。由于液晶的天然双折射，当以斜入射角观察液晶单元时，对比度受到影响。使用由双折射介质制成的补偿装置来纠正这种缺陷。补偿装置包括至少一个膜，其双折射是通过记录由平行条纹组成的体积全息图而引起的。光学双折射轴的选择仅取决于条纹的取向，使得易于使用相对于膜的平面倾斜的单轴膜来实现补偿。

28. 发明授权

US5347380A Liquid crystal optical polarization separator with parrallel alignment on one substrate, perpendicular on other 失效
标题翻译：液晶光学偏振分离器，在一个基板上具有对中线对齐，垂直于其他基板
公开(公告)号：US5347380A
公开(公告)日：1994-09-13
申请号：US989365
申请日：1992-12-11
申请人： Jean-Claude Lehureau
发明人： Jean-Claude Lehureau
IPC分类号： G02B5/30 , G02B27/28 , G02F1/13 , G02F1/1337
CPC分类号： G02B27/283 , G02B5/3016
摘要： A polarization separator including a nematic liquid crystal (3) trapped between two transparent slides (1 and 2). The slide faces in contact with the liquid crystal are treated so that the liquid crystal molecules in contact with the faces are, for one of the faces (1) parallel to the face and, for the other face (2) perpendicular to the face. An incident light beam containing P polarization and S polarization is received at an oblique angle, and the directrix rotates the S polarization state as the light propagates through the device. The element is employed in a display system as a polarized light source.
摘要翻译：一种偏振分离器，包括夹在两个透明载玻片（1和2）之间的向列型液晶（3）。处理与液晶接触的滑动面，使得与面相接触的液晶分子相对于面垂直的面（1）中的一个，以及垂直于面的另一面（2）。以倾斜角度接收包含P偏振和S偏振的入射光束，并且随着光传播通过该装置，原稿旋转S偏振状态。该元件用作显示系统中的偏振光源。

29. 发明授权

US5272551A Optical system for the reproduction of color video images 失效
标题翻译：用于再现彩色视频图像的光学系统
公开(公告)号：US5272551A
公开(公告)日：1993-12-21
申请号：US974331
申请日：1992-11-10
申请人： Jean-Claude Lehureau , Jean-Pierre Huignard
发明人： Jean-Claude Lehureau , Jean-Pierre Huignard
IPC分类号： G02B5/32 , G02F1/13357 , H04N9/31 , G02B27/44 , G02F1/1335
CPC分类号： G02F1/133621 , G02B5/32 , H04N9/3152
摘要： The present invention concerns an optical system for the reproduction of color video images, comprising a source of illumination (1), an electro-optical modulator (3) formed from pixels associated with the colors red, green, and blue respectively, and optical collimation means (2) used to illuminate the entirety of the modulator. This system further comprises a series of wavelength-selective holographic lenses (6) making it possible to focus the light of each red, green, or blue component on the associated pixels of the modulator. Applications to videoprojectors and direct viewing.
摘要翻译：本发明涉及一种用于再现彩色视频图像的光学系统，包括照明源（1），分别由与红色，绿色和蓝色相关联的像素形成的电光调制器（3）和光学准直用于照亮整个调制器的装置（2）。该系统还包括一系列波长选择性全息透镜（6），使得可以将每个红色，绿色或蓝色分量的光聚焦在调制器的相关像素上。应用于视频投影机和直接观看。

30. 发明授权

US5218595A Device for reading oblong segments of an advancing storage medium 失效
标题翻译：用于读取高级存储介质的长度段的设备
公开(公告)号：US5218595A
公开(公告)日：1993-06-08
申请号：US643520
申请日：1991-01-18
申请人： Jean-Claude Lehureau , Sophie Neubert
发明人： Jean-Claude Lehureau , Sophie Neubert
IPC分类号： G11B11/10 , G03B31/00 , G06K7/10 , G11B7/003 , G11B11/105 , H04N5/78
CPC分类号： G06K7/10702 , G11B11/10515 , G11B11/10543 , G11B11/10547 , H04N5/7805
摘要： A device for reading data from a multitrack magnetic tape or other storage media. The reading device includes an imaging device having a convex mirror and a concave mirror arranged to produce a magnification equal to -1. The device also includes a light source, a cylindrical lens and a detector device. The device is of compact dimensions, yet exhibits only slight aberrations and provides high resolution.
摘要翻译：用于从多轨磁带或其他存储介质读取数据的装置。读取装置包括具有凸面镜和布置成产生等于-1的倍率的凹面镜的成像装置。该装置还包括光源，柱面透镜和检测器装置。该设备具有紧凑的尺寸，但仅显示轻微的像差并提供高分辨率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式