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1.发明授权
公开(公告)号：US4215324A
公开(公告)日：1980-07-29
申请号：US930108
申请日：1978-08-01
IPC分类号： H04B10/00 , F41G7/26 , G01C15/00 , G01S1/70 , G02F1/01 , G02F1/17 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152 , H01S3/10
摘要： Apparatus for coding a laser beam to provide guidance signals, or the like. In the transmitter, the laser beam traverses two modulators to provide two-dimensional encoding. In the receiver, the detected signals are amplified, frequency-discriminated, and mixed to form guidance signals. The modulator is a modified Stark cell wherein four split longitudinal planar electrodes allow for beam encloding as a function of two frequencies by the process of molecular absorption. Bias and modulating signals applied to the electrodes interact with the molecular absorbing gas and with the beam to encode position information as a function of the specific frequencies. The amplitude of the first encoding frequency varies from a maximum at one edge of the beam, decreasing to a minimum at the opposite edge, and vice versa for the second encoding frequency. The amplitudes of both are equal on beam center. A second embodiment utilizes a pair of internal bias electrodes and four external electrodes to apply bias and modulating signals. The modulator wall is thin for penetration of the modulating signals so as to interact with the beam. A third embodiment utilizes four semicircular disc electrodes transparent to laser light affixed to the cell endcaps to provide both bias and modulation. A gas separates electrodes affixed to the same endcap. The endcaps are oriented such that the gaps are mutually perpendicular to allow for orthogonal encoding of the beam.
摘要翻译： 用于编码激光束以提供引导信号的装置等。 在发射机中，激光束穿过两个调制器以提供二维编码。 在接收机中，检测到的信号被放大，频率鉴别和混合以形成引导信号。 调制器是一种改进的Stark单元，其中四个分裂的纵向平面电极允许通过分子吸收过程作为两个频率的函数的束包围。 施加到电极的偏置和调制信号与分子吸收气体和光束相互作用，以根据特定频率对位置信息进行编码。 第一编码频率的幅度从波束的一个边缘处的最大值变化，在相对边缘处减小到最小值，对于第二编码频率，反之亦然。 两者的振幅在波束中心相等。 第二实施例利用一对内部偏置电极和四个外部电极来施加偏置和调制信号。 调制器壁对于调制信号的穿透是薄的，以便与光束相互作用。 第三实施例使用四个半透明圆盘电极，透明的激光固定到电池端盖上以提供偏压和调制。 气体分离固定在相同端盖上的电极。 端盖被定向成使得间隙相互垂直以允许波束的正交编码。
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公开(公告)号：US4494827A
公开(公告)日：1985-01-22
申请号：US435522
申请日：1982-10-20
IPC分类号： G02F1/03
CPC分类号： G02F1/03 , G02F1/0305
摘要： An imaging apparatus which permits the use of a transverse electrode electro-optic tunable filter (TEOTF), despite its obscured aperture, to produce a high quality image. The imaging apparatus includes a suitable conventional anamorphic input optical system in combination with a stacked plurality of TEOTFs in which the platelet of each TEOTF is made of an electro-optic material of a known index of refraction (such as CdS of an index of .about.2.4), and is clad between its surface and its electrodes with a material having a lower index of refraction than the platelet material (such as SiO.sub.2 of an index of .about.1.5).
摘要翻译： 尽管其遮蔽的孔径，允许使用横向电极电光可调滤波器（TEOTF）的成像设备产生高质量的图像。 成像设备包括合适的常规变形输入光学系统与多个TEOTF的堆叠组合，其中每个TEOTF的血小板由已知折射率的电光材料制成（例如DIFFERENCE 2.4的指数的CdS ），并且其表面和其电极之间的折射率比片状材料（如DIFFERENCE 1.5的指数的SiO 2）折射率低的材料包覆。
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公开(公告)号：US4119930A
公开(公告)日：1978-10-10
申请号：US726337
申请日：1976-09-24
摘要： A wideband optical ring modulator is disclosed. A ring resonator containing a synchronous travelling wave electro-optic modulator is disposed external to a laser cavity. The invention provides a compact lightweight optical modulator which combines the power enhancement capabilities of a resonant cavity with the wideband capabilities of a travelling wave coupling modulator. The present invention is especially useful for, although not limited to, ultra-wideband infrared laser communication systems utilizing PCM techniques.
摘要翻译： 公开了一种宽带光环调制器。 包含同步行波电光调制器的环形谐振器设置在激光腔的外部。 本发明提供了一种紧凑的轻型光调制器，其将谐振腔的功率增强能力与行波耦合调制器的宽带能力相结合。 本发明对于但不限于使用PCM技术的超宽带红外激光通信系统特别有用。
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公开(公告)号：US4063195A
公开(公告)日：1977-12-13
申请号：US670601
申请日：1976-03-26
申请人： Richard L. Abrams , Amnon Yariv
发明人： Richard L. Abrams , Amnon Yariv
CPC分类号： G02F1/39
摘要： In the disclosed parametric frequency converter a dc electric field is utilized to remove spatial inversion symmetry of NH.sub.2 D gas molecules contained in a Stark cell. Simultaneous introduction into the Stark cell of a laser beam at a frequency f.sub.1 (e.g., corresponding to about 10.6 .mu.m) and microwaves at a frequency f.sub.2 (e.g., about 4.1 GHz) produces resonantly enhanced parametric mixing of the frequencies f.sub.1 and f.sub.2, resulting in the generation of a laser beam at the difference frequency f.sub.3 = f.sub.1 - f.sub.2.
摘要翻译： 在公开的参数变频器中，使用直流电场去除包含在斯塔克电池中的NH2D气体分子的空间反演对称性。 以频率f1（例如，对应于约10.6μm）和频率f2（例如，约4.1GHz）的微波同时引入激光束的斯塔克单元产生频率f1和f2的共振增强的参数混合，从而产生 在产生不同频率f3 = f1-f2的激光束。
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5.发明授权Color concentrates and polymer compositions containing the same, and methods of making the same 失效含有它们的着色浓缩物和聚合物组合物及其制备方法
公开(公告)号：US5670561A
公开(公告)日：1997-09-23
申请号：US662488
申请日：1996-06-13
申请人： Anthony S. Scheibelhoffer , Richard L. Abrams , Dianna B. Dusek , Dennis L. Hammond , Robert J. Opalko , Ronald E. Thompson
发明人： Anthony S. Scheibelhoffer , Richard L. Abrams , Dianna B. Dusek , Dennis L. Hammond , Robert J. Opalko , Ronald E. Thompson
CPC分类号： C08J3/226
摘要： The present invention provides a color concentrate comprising (a) at least one resin selected from the group consisting of a polymer of a diene, a rosin material, a coumarone-indene resin, a polymer of vinyl aromatic monomer having an M n of from about 500 to about 4000, a wax and a mixture of two or more thereof, (b) at least one resin selected from the group consisting of a copolymer of an olefin and an acrylate or a methacrylate, a polymer of a vinyl aromatic monomer having an M n of at least about 10,000 and a mixture thereof, and (c) at least one colorant.
摘要翻译： 本发明提供了一种着色浓缩物，其包含（a）至少一种选自二烯的聚合物，松香材料，香豆酮 - 茚树脂，具有M + E的乙烯基芳族单体的聚合物，ovs n + EE为约500至约4000，蜡及其两种或多种的混合物，（b）至少一种选自烯烃和丙烯酸酯或甲基丙烯酸酯的共聚物的树脂， 具有至少约10,000的M + E，ovs n + EE的乙烯基芳族单体及其混合物，和（c）至少一种着色剂。
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公开(公告)号：US5157067A
公开(公告)日：1992-10-20
申请号：US686033
申请日：1991-04-16
申请人： Neil A. Burditt , Richard L. Abrams
发明人： Neil A. Burditt , Richard L. Abrams
CPC分类号： C08J3/226 , C08L93/04 , C08J2493/00
摘要： Liquid concentrates for incorporation into polymeric resins are described that are storage stable and resistant to settling or viscosity changes which comprise:(I) a vehicle comprising:(A) at least one organic rosin material;(B) at least one surfactant; and(II) at least one colrant or additive.The liquid concentrates of the present invention have a body or consistency that allow them to readily flow by gravity and are further characterized by a substantially uniform viscosity. The liquid color concentrates of the present invention also are compatible with a wide variety of plastics and facilitate a reduction in processing deficiencies such as screw-slippage, water carry-over and uneven flow to the pump inlet.
摘要翻译： 描述了用于结合到聚合物树脂中的液体浓缩物，其是储存稳定的并且耐沉降或粘度变化，其包含：（I）载体，其包含：（A）至少一种有机松香材料; （B）至少一种表面活性剂; 和（II）至少一种混合物或添加剂。 本发明的液体浓缩物具有允许它们容易地通过重力流动的主体或稠度，并且进一步的特征在于基本均匀的粘度。 本发明的液体颜料浓缩物也与各种各样的塑料兼容，并且有助于减少加工缺陷，例如螺杆滑动，水携带和不均匀的流入泵入口。
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公开(公告)号：US4139936A
公开(公告)日：1979-02-20
申请号：US813195
申请日：1977-07-05
IPC分类号： H01B13/016 , H01B13/22
CPC分类号： H01B13/016 , Y10T29/49123 , Y10T29/49986
摘要： There is described a hermetic coaxial cable particularly adapted to be produced in miniature form and having a completely solid cross section with a solid metal central conductor, a tubular metal outer conductor, and a continuous glass dielectric insulator therebetween.
摘要翻译： 描述了一种密封同轴电缆，特别适用于以微型形式制造，并且具有与实心金属中心导体，管状金属外部导体和其间的连续玻璃绝缘绝缘体完全固体的截面。
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公开(公告)号：US5443768A
公开(公告)日：1995-08-22
申请号：US171062
申请日：1993-12-21
申请人： Anthony S. Scheibelhoffer , Dianna B. Dusek , Dennis L. Hammond , Surachai Wimolkiatisak , William R. Myers , Robert J. Opalko , Richard L. Abrams
发明人： Anthony S. Scheibelhoffer , Dianna B. Dusek , Dennis L. Hammond , Surachai Wimolkiatisak , William R. Myers , Robert J. Opalko , Richard L. Abrams
IPC分类号： B29C33/72 , B29C45/17 , B29C47/08 , C11D3/12 , C11D3/14 , C11D3/37 , C11D7/20 , C11D11/00 , B08B9/00
CPC分类号： C11D11/0041 , B29C33/722 , B29C45/1753 , B29C47/0877 , C11D3/1213 , C11D3/1233 , C11D3/14 , C11D3/3749 , C11D3/3761 , C11D3/3776 , C11D7/20 , B29C47/0009
摘要： This invention relates to an abrasive composition comprising (a) a major amount of at least one abrasive powder, (b) at least one resin selected from the group consisting of a polymer of a diene, a rosin material, a coumarone-indene resin, and a mixture of two or more thereof, and (c) at least one copolymer of an olefin and an acrylate or a methacrylate. The abrasive composition may additionally include (d) a surface active agent. The abrasive composition may be added to a polymer or resin to form purge compositions. The invention also relates to methods of cleaning processing equipment and preparing the abrasive compositions and purge composition.
摘要翻译： 本发明涉及一种磨料组合物，其包含（a）主要量的至少一种磨料粉末，（b）至少一种选自二烯聚合物，松香材料，香豆酮 - 茚树脂的树脂， 和其两种或多种的混合物，和（c）至少一种烯烃和丙烯酸酯或甲基丙烯酸酯的共聚物。 磨料组合物可另外包括（d）表面活性剂。 磨料组合物可加入到聚合物或树脂中以形成吹扫组合物。 本发明还涉及清洁处理设备和制备磨料组合物和清洗组合物的方法。
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公开(公告)号：US5395456A
公开(公告)日：1995-03-07
申请号：US58492
申请日：1993-05-06
CPC分类号： C11D11/0041 , B29C33/722 , B29C47/0877 , C08L93/04 , C11D3/14 , B29C47/0009
摘要： This invention relates to abrasive compositions useful in preparing purge compositions for purging plastics processing equipment comprising: (A-1) at least one abrasive powder comprising a major amount of calcium carbonate; (A-2) at least one organic rosin material; and (A-3) at least one surfactant. The abrasive compositions of the present invention further may comprise at least one viscosity reducing organic diluent. The purging compositions of the present invention comprise (A) a minor amount of the abrasive composition of the invention, and (B) a major amount of at least one polymer or resin. These purging compositions allow fast and effective purging of processing equipment. These compositions may also be reused, i.e., used for more than one purging operation, and they may be recycled by incorporating the used purge composition into a polymer which is identical to or compatible with the polymer (B) of the purge composition. The invention also relates to a method of purging plastics processing equipment utilizing the purging compositions described herein.
摘要翻译： 本发明涉及可用于制备用于吹扫塑料加工设备的吹扫组合物的磨料组合物，其包括：（A-1）至少一种包含主要量的碳酸钙的磨料粉末; （A-2）至少一种有机松香材料; 和（A-3）至少一种表面活性剂。 本发明的研磨组合物还可包含至少一种降粘有机稀释剂。 本发明的清洗组合物包含（A）少量本发明的研磨组合物，和（B）主要量的至少一种聚合物或树脂。 这些清洗组合物可快速有效地清洗加工设备。 这些组合物也可以重复使用，即用于多于一次的清洗操作，并且它们可以通过将所使用的清洗组合物掺入到与清洗组合物的聚合物（B）相同或相容的聚合物中来再循环。 本发明还涉及一种利用本文所述清洗组合物清洗塑料加工设备的方法。
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公开(公告)号：US3994566A
公开(公告)日：1976-11-30
申请号：US589285
申请日：1975-06-23
CPC分类号： G02F1/0356
摘要： There is disclosed a synchronous traveling wave electro-optic modulator for ultra-wideband infrared laser communications systems which provides optical waveguiding of the laser beam through an interaction distance which is large relative to the diffraction limit of the laser beam and which affords essentially perfect radio frequency and optical velocity synchronism at a relatively high electrical impedance level by appropriate choice of the design parameters of the device. The device comprises an array of very slender rectangular rods of electro-optic material such as cadmium telluride laid end to end in juxtaposition to form a light pipe for an infrared laser beam. The length to cross-section ratio of the light pipe is many times greater than that which is determined by the diffraction limit and consequently the voltage and power required to achieve a given depth of modulation is substantially reduced. The modulating signal is applied as a synchronous or nearly synchronous traveling wave across two parallel strip electrodes which form a TEM transmission line exhibiting a purely resistive impedance, with matched termination, and a theoretically infinite base bandwith. An appropriate dielectric environment is provided by surrounding members enclosed in electrical shielding. A structural variable or parameter which can be adjusted to achieve a desired signal velocity for a given dielectric environment is w/d, the width of the strip electrodes relative to their separation by the thickness of the electro-optic material.
摘要翻译： 公开了一种用于超宽带红外激光通信系统的同步行波电光调制器，其通过相对于激光束的衍射极限大的相互作用距离提供激光束的光波导，并提供基本上完美的射频 并通过适当选择设备的设计参数，在较高的电阻抗水平下进行光速同步。 该装置包括一组非常细长的电光材料矩形棒，例如碲化镉，它们以并置方式端对端放置，以形成用于红外激光束的光管。 光管的长度与横截面比是由衍射极限所确定的长度与横截面比，因此实现给定调制深度所需的电压和功率大大降低。 调制信号作为同步或几乎同步的行波施加在两条平行条状电极上，这两条平行条状电极形成了具有纯电阻阻抗的TEM传输线，具有匹配的终止，以及理论上无限的基带。 由围绕电屏蔽的周围构件提供适当的介电环境。 可以调节以达到给定电介质环境的期望信号速度的结构变量或参数是带状电极相对于电离材料厚度的间隔的宽度。
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