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公开(公告)号：US4079247A
公开(公告)日：1978-03-14
申请号：US684355
申请日：1976-05-07
CPC分类号： G02B27/40 , G11B7/0909 , G11B7/13
摘要： A device for focussing a read-out light beam on a moving data carrier. It comprises an objective lens which causes said read-out beam to converge on the data carrier; a cylindrical lens arranged in the path of a light beam reflected by the data carrier; and photo-electric means for detecting the reflected beam and arranged in such a fashion that the light spot obtained there, normally substantially circular in shape, is distorted by elongation if focussing of the read-out beam on the data carrier is incorrect.
摘要翻译： 用于将读出光束聚焦在移动数据载体上的装置。 它包括使所述读出光束会聚在数据载体上的物镜; 布置在由数据载体反射的光束的路径中的柱面透镜; 以及光电装置，用于检测反射光束并且以这样的方式布置，使得通常在其上形成的大致圆形形状的光斑由于读出光束在数据载体上的聚焦不正确而被伸长变形。
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公开(公告)号：US07187448B2
公开(公告)日：2007-03-06
申请号：US10477360
申请日：2002-04-30
申请人： Jean-Claude Lehureau
发明人： Jean-Claude Lehureau
IPC分类号： G01C19/72
CPC分类号： G01C19/726
摘要： The present invention relates to a fiber-optic gyrometer including a Sagnac interferometer using two light waves propagating in opposite directions in a interferometer loop including a photodetector which delivers an electrical signal Ud representing the light intensity of the interference between the two waves, and for optically phase-shifting the waves controlled by a square-wave modulation signal Um suitable for controlling an optical phase variation at a frequency FO substantially equal to 1/(2to), where to is the propagation time of a wave through the guide. The photodetector is connected to at least a first sampling circuit and a second sampling circuit which are controlled in phase opposition by a clock. The gyrometer includes a means for inverting the phase of the clock at a frequency f, which is very much less than the frequency FO.
摘要翻译： 光纤陀螺仪技术领域本发明涉及一种光纤陀螺仪，其包括使用在干涉仪环路中以相反方向传播的两个光波的Sagnac干涉仪，所述干涉仪环路包括传递表示两个波之间的干涉光强度的电信号Ud的光电检测器， 相位移动由方波调制信号Um控制的波，该方波适用于控制基本上等于1 /（2πω）的频率FO的光相位变化，其中t 0 < SUB>是通过引导件的波的传播时间。 光电检测器连接到至少第一采样电路和第二采样电路，其通过时钟相位控制。 陀螺仪包括一个用于以与频率FO非常小的频率f反相时钟相位的装置。
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公开(公告)号：US5936484A
公开(公告)日：1999-08-10
申请号：US722226
申请日：1996-10-23
摘要： A UHF phase shifter including a UHF waveguide having an electrooptical element lying between two elements 3 and 4 made of materials which have permittivity higher than that of the electrooptical element. An electric polarization field is applied for controlling the electrooptical element and a UHF line is inserted into the element. The control of the orientation of the molecules of the electrooptical element allows for a variation of the index of the element as seen by the field of a UHF wave.
摘要翻译： PCT No.PCT / FR95 / 00226 Sec。 371日期：1996年10月23日 102（e）日期1996年10月23日PCT提交1995年2月24日PCT公布。 出版物WO96 / 26554 日期1996年8月29日一种UHF移相器，包括UHF波导，其具有位于两个元件3和4之间的电光元件，该元件由具有高于电光元件的介电常数的材料制成。 应用电极化场控制电光元件，并将UHF线插入元件。 电光元件的分子的取向的控制允许由UHF波的场看到的元件的折射率的变化。
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14.发明授权Recording and/or reading device with magnetic heads and method for the manufacture thereof 失效具有磁头的记录和/或读取装置及其制造方法
公开(公告)号：US5880914A
公开(公告)日：1999-03-09
申请号：US926687
申请日：1997-09-10
申请人： Jean-Claude Lehureau
发明人： Jean-Claude Lehureau
CPC分类号： G11B5/4984 , G11B5/29 , G11B5/4976 , G11B5/3183
摘要： Disclosed is a recording and/or reading device with magnetic heads including at least two magnetic heads. A magnetic circuit for the closing of the magnetic flux has a pad common to both heads. A first pole of a first type magnetically couples the common pad to the gap of the first head through a non-magnetic link. A second pole of a second type, separated from the first pole by a non-magnetic interval, magnetically couples the common pad to the gap of the second head. Such a device finds applications to a system for recording and/or reading, notably on magnetic tapes.
摘要翻译： 公开了一种具有包括至少两个磁头的磁头的记录和/或读取装置。 用于闭合磁通的磁路具有两个磁头共同的焊盘。 第一类型的第一极通过非磁性链路将公共焊盘磁耦合到第一磁头的间隙。 第二类型的第二极与第一极分开非磁性间隔，将公共垫磁耦合到第二头的间隙。 这样的设备可以应用于用于记录和/或读取的系统，特别是在磁带上。
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15.发明授权Color display device in which the area of a spherical lens equals the area of a set of RGB sub-pixels 失效彩色显示装置，其中球面透镜的面积等于一组RGB子像素的面积
公开(公告)号：US5801794A
公开(公告)日：1998-09-01
申请号：US605069
申请日：1996-03-08
IPC分类号： G02F1/1335 , G02F1/13 , G02F1/13357 , G09F9/00 , G09F9/30 , H04N9/30 , H04N9/31 , G02B27/10 , G03B21/00 , G03B21/26
CPC分类号： G02F1/133621 , H04N9/3108
摘要： The invention relates to a color display device comprising a chromatic dispersive grating and an active matrix possibly of liquid crystal type. This device moreover comprises a matrix of spherical microlenses, the shape of the cross section of the microlenses being such that it makes it possible to compensate for the spreading of the R G B colored beams by virtue of the use of a dispersive grating, and hence to make best use of the circular aperture of projection objectives.
摘要翻译： PCT No.PCT / FR95 / 00851 Sec。 371日期：1996年3月8日 102（e）日期1996年3月8日PCT归档1995年6月27日PCT公布。 第WO96 / 02112号公报 日期：1996年1月25日本发明涉及一种彩色显示装置，其包括色散光栅和可能是液晶型的有源矩阵。 该装置还包括球形微透镜的矩阵，微透镜的横截面的形状使得其可以通过使用分散光栅来补偿RGB着色光束的扩展，并因此使 最佳使用圆形孔径的投影物镜。
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16.发明授权
公开(公告)号：US5349400A
公开(公告)日：1994-09-20
申请号：US64164
申请日：1993-05-27
摘要： Back-projection display system including a screen which can be moved away from or, conversely, placed up against a support such as a wall, for example. A projector located at some distance away, on the ceiling for example, illuminates a back-projection mirror located at 45.degree. in relation to the illumination beam and in relation to the screen. The back-projection mirror itself is also articulated. In addition, the mirror may be made in the form of a holographic mirror.
摘要翻译： PCT No.PCT / FR91 / 00952 Sec。 371日期：1993年5月27日 102（e）日期1993年5月27日PCT 1990年11月29日PCT PCT。 第WO92 / 09918号公报 日期：1992年6月11日。背投投影显示系统，其包括可以远离或相反地放置在诸如墙壁的支撑件上的屏幕。 位于天花板一定距离处的投影仪照亮位于相对于照明光束并相对于屏幕的45°的背投影镜。 后投影镜本身也铰接。 此外，镜子可以以全息镜的形式制成。
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公开(公告)号：US5229874A
公开(公告)日：1993-07-20
申请号：US773207
申请日：1991-10-09
申请人： Jean-Claude Lehureau , Bruno Mourey
发明人： Jean-Claude Lehureau , Bruno Mourey
IPC分类号： G02F1/1335 , G02F1/139 , G03B21/00 , G09G3/36 , H04N5/74
CPC分类号： G02F1/13725 , G02F1/133533 , G09G3/3607 , G02F2201/124 , G02F2203/07
摘要： The disclosure relates to color image display devices in which the light is modulated spatially by a liquid crystal display screen, and is designed to improve the luminous efficiency and resolution of the color image in display devices of this kind. The disclosed display device includes a light source and a liquid crystal display screen. Each cell of the liquid crystal display screen has means to modulate the two orthogonal polarizations of light independently of each other.
摘要翻译： 本发明涉及通过液晶显示屏在空间上调制光的彩色图像显示装置，并且被设计为提高这种显示装置中的彩色图像的发光效率和分辨率。 所公开的显示装置包括光源和液晶显示屏。 液晶显示屏的每个单元具有独立于彼此调制光的两个正交偏振的装置。
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公开(公告)号：US5172368A
公开(公告)日：1992-12-15
申请号：US603735
申请日：1990-11-15
申请人： Jean-Claude Lehureau
发明人： Jean-Claude Lehureau
IPC分类号： G11B7/09 , G11B7/1353 , G11B7/1381
CPC分类号： G11B7/1353 , G11B7/1381
摘要： A device for reading an optical recording medium which includes a source (1) for emitting a first light beam (F1) along a main optical axis (01); a beam splitter (2) to direct, along the main optical axis, the first light beam towards the surface of the recording medium (5), and to split a second beam (F2) obtained by reflection of the first beam on the surface of the recording medium so as to form a third beam (F'3) directed along a secondary optical axis; a focusing lens (4) between the splitter (2) and the surface of the recording medium to focus the first beam on the surface; a mask to introduce a dissymmetry into the third beam; and at least one detection device (7) receiving at least one part of the third beam (F'3) and giving at least one electrical signal expressing the detection made. In this device, the mask is formed by part of an external surface of the light-emitting source (1), and the splitter (2) is positioned and made so that the mask is in the focusing plane of the third beam (F'3).
摘要翻译： PCT No.PCT / FR90 / 00234 Sec。 371日期1990年11月15日 102（e）1990年11月15日日期PCT提交1990年4月10日PCT公布。 出版物WO90 / 13117 1。一种用于读取光学记录介质的装置，包括用于沿主光轴（01）发射第一光束（F1）的源（1）; 分束器（2），沿着主光轴将第一光束朝向记录介质（5）的表面引导，并且将通过第一光束的反射获得的第二光束（F2）分裂在第二光束的表面上 记录介质，以形成沿着副光轴指向的第三光束（F'3）; 分离器（2）和记录介质的表面之间的聚焦透镜（4），以将第一光束聚焦在表面上; 将不对称性引入第三束的掩模; 以及至少一个接收所述第三光束（F'3）的至少一部分并且给出表示所述检测的至少一个电信号的检测装置（7）。 在该装置中，掩模由发光源（1）的外表面的一部分形成，分离器（2）被定位并制成使掩模处于第三光束（F'）的聚焦平面中， 3）。
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公开(公告)号：US5168485A
公开(公告)日：1992-12-01
申请号：US731428
申请日：1991-07-17
CPC分类号： G02B5/1833 , G02B27/283 , G02B5/3083 , G11B7/0909 , G11B7/123 , G11B7/1353 , G11B7/1381
摘要： A device for optically reading a recording medium is provided, in which a polarization beam separator includes a transparent plate having a phase network associated with a birefringent material, the refraction index of this material having a first refraction index for the polarization of an incident beam and a second refraction index for the polarization of a reflected beam. Thus, in accordance with the embodiment, the detection devices are placed substantially along the emission axis of the optical source.
摘要翻译： 提供了一种用于光学读取记录介质的装置，其中偏振束分离器包括具有与双折射材料相关联的相位网络的透明板，该材料的折射率具有用于入射光束的偏振的第一折射率， 用于反射光束的偏振的第二折射率。 因此，根据实施例，检测装置基本上沿着光源的发射轴放置。
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公开(公告)号：US4405862A
公开(公告)日：1983-09-20
申请号：US326025
申请日：1981-11-30
申请人： Claude Bricot , Jean-Claude Dubois , Francois LeCarvennec , Jean-Claude Lehureau , Henriette Magna
发明人： Claude Bricot , Jean-Claude Dubois , Francois LeCarvennec , Jean-Claude Lehureau , Henriette Magna
IPC分类号： B41M5/26 , G11B7/24 , G11B7/241 , G11B7/243 , G11B7/253 , G11B7/257 , G11B7/26 , G11B11/00 , G03C5/16
CPC分类号： G11B11/00 , G11B7/241 , G11B7/26 , G11B7/2433 , G11B7/2531 , G11B7/2535 , G11B7/2575 , Y10S430/165
摘要： The present invention relates to data-carrier intended for the high-density recording of information by the use of an etching radiation beam. The data-carrier comprises a substrate upon which there are deposited a very thin film which is absorbent at the wavelength of the etching beam, and a film which is thermodegradable at a temperature lower than the degradation temperature of the absorbent film, the heat developed in the absorbent film being selectively diffused towards the adjacent thermodegradable film.
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