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公开(公告)号：US5000568A
公开(公告)日：1991-03-19
申请号：US415438
申请日：1989-09-28
IPC分类号： G01M11/00
CPC分类号： G01M11/3118
摘要： An optical time domain reflectometer that injects at least two complementary code sequences into an optical fiber and detects the return signal produced by each of these code sequences. These return signals are processed to extract the function h.sub.k that is equal to the response function for the fiber when a single pulse is injected into the fiber. This processing utilizes a correlation scheme that has no sidelobe distortion. Various combinations of Golay codes are suitable for use as the complementary codes.
摘要翻译： 光时域反射计，其将至少两个互补码序列注入到光纤中，并检测由这些码序列中的每一个产生的返回信号。 处理这些返回信号以提取当将单个脉冲注入光纤时等于光纤的响应函数的函数hk。 该处理利用没有旁瓣失真的相关方案。 Golay码的各种组合适合用作互补码。
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公开(公告)号：US4747111A
公开(公告)日：1988-05-24
申请号：US14751
申请日：1987-02-13
CPC分类号： H01S3/083
摘要： A quasi-planar monolithic unidirectional ring laser is disclosed including an Nd:YAG crystal shaped so that a ring formed therein has an out-of-plane angle of about 1.degree.. The reflection opposite the output-coupling point on the front face is off the rear face. This arrangement provides for a very low pumping threshold and reduced magnetic field requirements. The disclosed laser can be pumped with a semiconductor laser and yield single mode 1.319 .mu.m and 1.338 .mu.m outputs suitable for fiber optic communications.
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公开(公告)号：US07777781B2
公开(公告)日：2010-08-17
申请号：US11212460
申请日：2005-08-26
IPC分类号： H04N5/228
CPC分类号： H04N5/23248 , G02B27/646 , H04N5/23254
摘要： Multiple motion sensor devices are included in an imaging apparatus. One or more of the motion sensor devices captures images and at least a portion of the sensor images are then processed to determine one or more motion vectors for the processed sensor images. At least one motion vector representing an amount of motion of the imager during image capture is generated when a predetermined portion of the motion vectors match.
摘要翻译： 多个运动传感器装置包括在成像装置中。 一个或多个运动传感器装置捕获图像，然后处理至少一部分传感器图像以确定用于经处理的传感器图像的一个或多个运动矢量。 当运动矢量的预定部分匹配时，产生表示图像拍摄期间成像器运动量的至少一个运动矢量。
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公开(公告)号：US07215837B2
公开(公告)日：2007-05-08
申请号：US11126805
申请日：2005-05-10
IPC分类号： G02F1/335
CPC分类号： G02F1/125 , Y10S385/901
摘要： Optical waveguide systems and methods are described. In one aspect, a display system includes a planar acoustic cavity having a fundamental resonant acoustic mode. The acoustic cavity includes an array of optical waveguides and an array of acoustic transducers. Each of the optical waveguides includes a respective cladding surrounding a liquid-filled core. The array of acoustic transducers is operable to generate acoustic waves that propagate in the acoustic cavity across the cores of the optical waveguides.
摘要翻译： 描述了光波导系统和方法。 一方面，显示系统包括具有基本共振声学模式的平面声腔。 声腔包括光波导阵列和声换能器阵列。 每个光波导包括围绕液体填充芯的相应包层。 声换能器的阵列可操作以产生在声腔中在光波导的芯上传播的声波。
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公开(公告)号：US5140599A
公开(公告)日：1992-08-18
申请号：US561024
申请日：1990-08-01
CPC分类号： H01S3/1068 , G02B6/4203 , H01S3/137 , H01S5/065 , H01S5/141
摘要： An external cavity laser is formed by feeding back light from a laser through two or more acoustooptic tuneable filters back to the laser. The Doppler shifts introduced by the filters do not entirely cancel. The net Doppler shift caused by the filters is continuously tuned to cause the bandpass of the filter to follow the shifting resonating frequency of the laser to prevent mode hopping.
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公开(公告)号：US4362809A
公开(公告)日：1982-12-07
申请号：US248761
申请日：1981-03-30
摘要： An improved photoetch technique is presented of the portable-conformable-mask type wherein a thin top layer of resist and a thick planarizing layer are deposited on a substrate and the thin layer is exposed and developed to produce a portable-conformable-mask. The improvement involves dissolving a suitable dye in a layer between the thin top layer and the substrate. The dye is preferably selected to absorb light of the wavelengths used to expose the top layer but does not interfere with processing of the other layers.
摘要翻译： 提出了一种改进的光刻技术，其中抗蚀剂的薄顶层和厚的平坦化层沉积在衬底上，并且薄层被曝光和显影以产生便携式一致掩模。 该改进涉及将合适的染料溶解在薄顶层和基底之间的层中。 优选选择染料以吸收用于暴露顶层的波长的光，但不影响其它层的处理。
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公开(公告)号：US06682207B2
公开(公告)日：2004-01-27
申请号：US09887954
申请日：2001-06-22
申请人： Andreas G. Weber , Gregory M. Cutler , William R. Trutna, Jr. , Gerd O. Muller , Regina B. Muller-Mach
发明人： Andreas G. Weber , Gregory M. Cutler , William R. Trutna, Jr. , Gerd O. Muller , Regina B. Muller-Mach
IPC分类号： F21V900
CPC分类号： H01S5/423 , H01L25/0753 , H01L33/50 , H01L2924/0002 , H01S5/4025 , H01S5/4087 , H01L2924/00
摘要： A light emitting device comprises a light emitting diode that emits primary light and a SrGa2S4:Eu2+ phosphor material capable of absorbing at least a portion of the primary light and emitting secondary light. The secondary light includes a wavelength longer than a wavelength of the primary light.
摘要翻译： 发光器件包括发射一次光的发光二极管和能够吸收至少一部分初级光并发射次级光的SrGa2S4：Eu 2+荧光体材料。 次级光包括比初级光的波长长的波长。
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公开(公告)号：US5534702A
公开(公告)日：1996-07-09
申请号：US287433
申请日：1994-08-08
CPC分类号： G21K4/00 , G01T1/2012 , G21K2004/12
摘要： A simplified, cost effective optical apparatus for solid state photorecording of optical images with enhanced resolution. The optical apparatus of the invention includes an array of optical apertures and a plurality of portions of a phosphorescent material. Each portion is optically coupled to a respective one of the apertures. The apertures are exposed to an optical image so as to record the image in the plurality of portions of the phosphorescent material. A number of the apertures of the invention is large, preferably within a range of approximately one million to seven million apertures. For example in a preferred embodiment the number of the apertures is approximately six million apertures. Preferably, the optical apertures are microscopic optical apertures. For example, each aperture has a respective width dimension within a range of approximately ten to fifty microns. Preferably, the respective width dimension of each aperture is approximately twelve microns.
摘要翻译： 一种用于具有增强分辨率的光学图像的固态光记录的简化的，成本有效的光学装置。 本发明的光学装置包括光学孔的阵列和磷光材料的多个部分。 每个部分光学耦合到相应的一个孔。 孔径暴露于光学图像，以便将图像记录在磷光材料的多个部分中。 本发明的许多孔是大的，优选在大约一百万到七百万个孔的范围内。 例如，在优选实施例中，孔的数量为大约六百万个孔。 优选地，光学孔是微观光学孔。 例如，每个孔具有在大约十到五十微米的范围内的相应的宽度尺寸。 优选地，每个孔的相应宽度尺寸大约为十二微米。
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公开(公告)号：US4297600A
公开(公告)日：1981-10-27
申请号：US916592
申请日：1978-06-19
CPC分类号： H01S3/305
摘要： The wavelength of an optical pump beam is down converted to a longer wavelength in a Raman active gaseous medium by stimulated Raman scattering. The Raman active gaseous medium is contained in the space between a pair of optical reflectors of an optical resonator of the type for producing a focus of the optical beam energy at a point intermediate the length of the resonator within the Raman active medium to enhance conversion of pump energy into the output longer wavelength of the Stokes wave. The pump beam is directed into the optical resonator at an angle to the optical axis of the optical resonator such that the optical beam path is folded back and forth within the optical resonator to cause the beam spot to walk over the surfaces of the reflectors and out of the optical resonator. The multipass Raman cell of the present invention is particularly useful for down converting pump wave energy in the infrared at relatively high power levels to Stokes wave infrared energy of longer wavelengths, such as at 16 microns, for producing a dissociation of molecules as may be employed for isotope separation.
摘要翻译： 通过受激拉曼散射，光泵浦光束的波长在拉曼活性气体介质中下变换为更长的波长。 拉曼活性气体介质包含在光学谐振器的一对光反射器之间的空间中，该光学谐振器的类型用于在拉曼活性介质内的谐振器的长度的中间产生光束能量的焦点，以增强 泵浦能量输入到斯托克斯波长的波长。 泵浦光束以与光谐振器的光轴成角度的方式被引导到光学谐振器中，使得光束路径在光学谐振器内来回折叠以使得光束点在反射器的表面上行进并出射 的光谐振器。 本发明的多通道拉曼单元特别可用于将红外线中的泵波能量以相当高的功率水平下降到较长波长（例如16微米）的斯托克斯波红外能量，以产生可能被使用的分子解离 用于同位素分离。
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10.发明授权公开(公告)号：US07619734B2
公开(公告)日：2009-11-17
申请号：US12082773
申请日：2008-04-14
CPC分类号： G01J3/10 , G01N15/0211 , G01N2015/003
摘要： Methods, systems and computer readable media for computing small particle size distributions. A reference matrix of pre-computed reference vectors is provided, with each reference vector representing a discrete particle size or particle size range of a particle size distribution of particles contained in a dilute colloid. A measurement vector of measured extinction values of a sample dilute colloid is provided, wherein the measured extinction values have been measured by spectrophotometric measurement at the discrete wavelengths. Size distribution and concentrations of particles in the sample dilute colloid are determined using linear equations, the reference matrix and the reference vector.
摘要翻译： 用于计算小粒度分布的方法，系统和计算机可读介质。 提供了预先计算的参考载体的参考矩阵，其中每个参考载体表示稀释胶体中包含的颗粒的粒度分布的离散粒度或粒度范围。 提供了样品稀释胶体的测量消光值的测量向量，其中测量的消光值已经通过在离散波长下的分光光度测量来测量。 使用线性方程，参考矩阵和参考矢量确定样品稀释胶体中颗粒的尺寸分布和浓度。
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