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1. 发明授权

US5469519A Optical waveguide image transmission system and method 失效
标题翻译：光波导图像传输系统及方法
公开(公告)号：US5469519A
公开(公告)日：1995-11-21
申请号：US13288
申请日：1993-02-04
申请人： David B. Chang , Victor Vali , I-Fu Shih
发明人： David B. Chang , Victor Vali , I-Fu Shih
IPC分类号： G02B6/06 , G02B27/46 , G02B6/32
CPC分类号： G02B27/46 , G02B6/06
摘要： An improved image transmission system which includes an elongate optical waveguide 15 having an input aperture 17 and an output aperture 19. Optical apparatus 11, 13 is provided for injecting a transform of an image into the waveguide. In a specific implementation, the Fourier transform of the image is injected at the input aperture 17. The output image is transformed as well to provide the desired image. When the Fourier components of the image are transmitted, each component propagates at a different velocity. However, the magnitude of the components are preserved and used to reconstruct the image at the output of the waveguide. This allows for the transmission of optical images without digitization with a single, inexpensive waveguide.
摘要翻译：一种改进的图像传输系统，其包括具有输入孔17和输出孔19的细长光波导15.光学装置11,13被设置用于将图像的变换注入到波导中。在具体实现中，图像的傅里叶变换在输入孔17处被注入。输出图像也被变换以提供期望的图像。当传输图像的傅立叶分量时，每个分量以不同的速度传播。然而，分量的大小被保留并用于在波导的输出处重建图像。这允许用单个廉价的波导传输光学图像而不进行数字化。

2. 发明授权

US5289266A Noncontact, on-line determination of phosphate layer thickness and composition of a phosphate coated surface 失效
标题翻译：非接触式，在线测定磷酸盐层厚度和磷酸盐涂层表面的组成
公开(公告)号：US5289266A
公开(公告)日：1994-02-22
申请号：US885066
申请日：1992-05-14
申请人： I-Fu Shih , David B. Chang , Victor Vali
发明人： I-Fu Shih , David B. Chang , Victor Vali
IPC分类号： G01B11/06 , G01N21/31 , G01N21/55 , G01N21/84 , G01B11/02
CPC分类号： G01N21/8422 , G01B11/0616 , G01N2021/8427 , G01N21/314 , G01N21/55
摘要： A nondestructive method and apparatus is disclosed for determining the thickness and composition of a zinc phosphate layer applied to a metal surface, such as sheet metal on an automotive assembly line. The phosphate layer is irradiated with infrared light which is at least partially transmitted through the phosphate layer. Reflections from the upper and lower surfaces of the phosphate layer return a total reflected intensity which is a function of the optical parameters of the phosphate components and the ratio of the components corresponding to the optical parameters. In the event, for example, that a phosphate layer includes two zinc phosphate components, the measure of reflected intensity at two separate wavelengths will be different inasmuch as the optical properties of the zinc phosphate components is also a function of frequency. The measured reflected intensity and its functional dependence upon the ratio of the components within the phosphate layer can be taken together with the known values of the optical parameters of each component to compute the fraction of each component within the phosphate layer.
摘要翻译：公开了用于确定施加到金属表面的磷酸锌层（例如汽车装配线上的金属板）的厚度和组成的非破坏性方法和装置。用至少部分透过磷酸盐层的红外光照射磷酸盐层。从磷酸盐层的上表面和下表面的反射返回总反射强度，其是磷酸盐组分的光学参数和对应于光学参数的组分的比率的函数。在例如磷酸盐层包含两种磷酸锌成分的情况下，由于磷酸锌成分的光学特性也是频率的函数，所以在两个分开的波长处的反射强度的测量将是不同的。测量的反射强度及其对磷酸盐层中组分比例的功能依赖性可以与每个组分的光学参数的已知值一起计算，以计算磷酸盐层内每个组分的分数。

3. 发明授权

US5345522A Reduced noise fiber optic towed array and method of using same 失效
标题翻译：减少噪音的光纤拖曳阵列及其使用方法
公开(公告)号：US5345522A
公开(公告)日：1994-09-06
申请号：US939237
申请日：1992-09-02
申请人： Victor Vali , David B. Chang , I-Fu Shih
发明人： Victor Vali , David B. Chang , I-Fu Shih
IPC分类号： G01D5/353 , G01H9/00 , G01V1/20 , G02B6/28 , G01B9/02 , G01V1/38 , H01J5/16
CPC分类号： G01H9/004 , G01D5/35383 , G01V1/201
摘要： A sensitive towed optical fiber sensor array 50, wherein the fiber sensors (60A-60N) are connected in parallel, and the optical fiber cable (34) is paid out from the towing ship at a velocity about equal to but opposite to the velocity of the towing ship. The fiber sensors (60A-60N) are immune to electromagnetic interference, and the output of the sensors can be isolated readily to the parallel hookup of the sensors. Turbulence and acceleration noise is greatly reduced due to the manner in which the fiber cable (34) is paid out, and crosstalk between sensors is eliminated.
摘要翻译：一种敏感的牵引光纤传感器阵列50，其中光纤传感器（60A-60N）并联连接，光缆（34）以大约等于但与牵引船。光纤传感器（60A-60N）不受电磁干扰的影响，传感器的输出可以很容易地与传感器的并联连接。由于支付光缆（34）的方式，湍流和加速噪声大大降低，并且消除了传感器之间的串扰。

4. 发明授权

US06166815A Constantly high sensitivity fiber optic interferometer sensor 失效
标题翻译：不断高灵敏度的光纤干涉仪传感器
公开(公告)号：US06166815A
公开(公告)日：2000-12-26
申请号：US634549
申请日：1996-04-18
申请人： Victor Vali , I-Fu Shih , David B. Chang
发明人： Victor Vali , I-Fu Shih , David B. Chang
IPC分类号： G01B9/02 , G01D5/353
CPC分类号： G01D5/35303 , G01B9/02007
摘要： A fiber optic interferometric sensor (150) having constantly high sensitivity by use of two lasers (152, 154) that simultaneously output at first and second wavelengths. By judicious choice of the wavelengths, the optical path length difference between the two interferometer paths (164, 166) can be kept near the maximum slope of the interference fringes for one or the other of the wavelengths. The output from the interferometer (160) is divided between first and second detector arms (170, 130). A filter (172) in the first detector arm passes the first wavelength and rejects the second. A filter (182) in the second detector arm passes the second wavelength and rejects the first. A first detector (174) at the output of the first detector arm reads the interference pattern at the first wavelength. A second detector arm reads the interference pattern at the second wavelength.
摘要翻译：一种通过使用在第一和第二波长同时输出的两个激光器（152,154）具有不断高灵敏度的光纤干涉测量传感器（150）。通过明智地选择波长，可以将两个干涉仪路径（164,166）之间的光程长度差保持在干涉条纹的最大斜率附近一个或另一个波长。来自干涉仪（160）的输出在第一和第二检测器臂（170,130）之间分配。第一检测器臂中的过滤器（172）通过第一波长并拒绝第二波长。第二检测器臂中的过滤器（182）通过第二波长并拒绝第一波长。在第一检测器臂的输出处的第一检测器（174）读取第一波长处的干涉图案。第二检测器臂读取第二波长处的干涉图案。

5. 发明授权

US5291032A Fiber optic evanescent wave fuel gauge and leak detector using eccentric core fibers 失效
标题翻译：光纤消弧波燃料计和使用偏心芯纤维的检漏仪
公开(公告)号：US5291032A
公开(公告)日：1994-03-01
申请号：US59714
申请日：1993-05-11
申请人： Victor Vali , David B. Chang , I-Fu Shih , Albert F. Lawrence
发明人： Victor Vali , David B. Chang , I-Fu Shih , Albert F. Lawrence
IPC分类号： G01F23/292 , G01N15/06
CPC分类号： G01F23/292 , Y10S250/907
摘要： An optical fiber evanescent wave fuel sensor, employing a light source with a wavelength selected to be at the strong infrared absorption lines of the fuel, typically hydrocarbons. The amount of light leaking from the optical fiber is an exponential function of the length of the fiber in the liquid, and is independent of the relative indices of refraction of the fuel and fiber cladding material.
摘要翻译：一种光纤ev逝波燃料传感器，其采用波长选定在燃料的强红外吸收线上的光源，通常为烃类。从光纤泄漏的光量是液体中纤维长度的指数函数，并且与燃料和纤维包层材料的相对折射率无关。

6. 发明授权

US5212583A Adaptive optics using the electrooptic effect 失效
标题翻译：自适应光学使用电光效应
公开(公告)号：US5212583A
公开(公告)日：1993-05-18
申请号：US818315
申请日：1992-01-08
申请人： Victor Vali , David B. Chang , I-Fu Shih , Bruce R. Youmans
发明人： Victor Vali , David B. Chang , I-Fu Shih , Bruce R. Youmans
IPC分类号： G02F1/03 , G02F1/29
CPC分类号： G02F1/29 , G02F1/292 , G02F1/03 , G02F1/0305 , G02F2201/12 , G02F2202/20 , G02F2203/18 , G02F2203/24 , G02F2203/28
摘要： An adaptive electroopical lens system for use in optical data storage systems, optical phased arrays, laser or other optical projectors, and raster scanning devices, and the like. The invention provides an electrooptical means for scanning an optical beam or moving an optical storage or retrieval point. Beam movement is achieved electrooptically, by changing the index of refraction of an electrooptical material by controlling electric fields applied thereto. A plurality of electrodes are disposed on one surface of the electrooptic material and a ground electrode is disposed on the other. The electrodes are adapted to apply electric fields derived from a voltage source to the electroopic material that selectively change its index of refraction and provides for a predetermined index of refraction profile along at least one dimension thereof, thus forming a lens. By appropriately forming the electrode pattern and properly controlling the voltages applied thereto, differing lens shapes may be formed. Since the response times of the electrooptic materials employed in the present invention are on the order of nanoseconds (10.sup.-9 sec) or less, the intrinsic response frequency of the lens system is 10.sup.9 Hz or more. The present invention thus increases the data storage and retrieval capacity of optical systems in which it is employed.
摘要翻译：用于光学数据存储系统，光学相控阵列，激光或其它投影仪的光学扫描装置等的适应性电透镜系统。本发明提供了一种用于扫描光束或移动光学存储或检索点的电光学装置。通过电光学实现光束运动，通过控制施加于其上的电场来改变电光材料的折射率。多个电极设置在电光材料的一个表面上，而接地电极设置在另一个表面上。电极适于将从电压源导出的电场施加到选择性地改变其折射率的电学材料，并且沿其至少一个维度提供预定的折射率分布，从而形成透镜。通过适当地形成电极图案并适当地控制施加到其上的电压，可以形成不同的透镜形状。由于本发明中使用的电光材料的响应时间为纳秒（10-9秒）以下，透镜系统的固有响应频率为109Hz以上。因此，本发明增加了使用它的光学系统的数据存储和检索能力。

7. 发明授权

US5228856A Optics approach to low side compliance simulation 失效
标题翻译：低边合规模拟的光学方法
公开(公告)号：US5228856A
公开(公告)日：1993-07-20
申请号：US653530
申请日：1991-02-11
申请人： David B. Chang , I-Fu Shih
发明人： David B. Chang , I-Fu Shih
IPC分类号： G09B9/32 , H04N13/00
CPC分类号： H04N13/026 , G09B9/326 , H04N13/0003 , H04N13/04 , H04N2013/0081
摘要： A low cost visual simulation system (100) for training simulators is disclosed. Aerial photo transparencies are used directly as image sources without creating a digital data base. The approximately correct image perspective is generated optically by a deformable mirror (114) and a zoom lens and rotation prism assembly (106). Stereo image photo pairs (120) need to be analyzed only at a relatively small number of points; thus, the computational burden is greatly reduced.

8. 发明授权

US5003186A Stratospheric Welsbach seeding for reduction of global warming 失效
标题翻译：平流层维尔斯巴赫种植用于减少全球变暖
公开(公告)号：US5003186A
公开(公告)日：1991-03-26
申请号：US513145
申请日：1990-04-23
申请人： David B. Chang , I-Fu Shih
发明人： David B. Chang , I-Fu Shih
IPC分类号： A01G15/00
CPC分类号： A01G15/00
摘要： A method is described for reducing atmospheric or global warming resulting from the presence of heat-trapping gases in the atmosphere, i.e., from the greenhouse effect. Such gases are relatively transparent to sunshine, but absorb strongly the long-wavelength infrared radiation released by the earth. The method incudes the step of seeding the layer of heat-trapping gases in the atmosphere with particles of materials characterized by wavelength-dependent emissivity. Such materials include Welsbach materials and the oxides of metals which have high emissivity (and thus low reflectivities) in the visible and 8-12 micron infrared wavelength regions.
摘要翻译：描述了一种用于减少由于大气中的热捕获气体的存在而引起的大气或全球变暖的方法，即温室效应。这种气体对阳光相对透明，但是强烈地吸收了地球释放的长波长的红外辐射。该方法包括以大小依次为波长依赖的发射率的材料颗粒将大气中的热捕获气体层接种的步骤。这些材料包括威尔斯巴赫材料和在可见光和8-12微米红外波长区域具有高发射率（因而具有低反射率）的金属氧化物。

9. 发明授权

US4773748A Dynamically controlled mirror for reduction of projected image distortion 失效
标题翻译：用于减少投影图像失真的动态控制镜
公开(公告)号：US4773748A
公开(公告)日：1988-09-27
申请号：US658954
申请日：1984-10-09
申请人： I-Fu Shih , David B. Chang , Peter L. Garrett , Norton L. Moise
发明人： I-Fu Shih , David B. Chang , Peter L. Garrett , Norton L. Moise
IPC分类号： G02B26/06 , G09B9/32 , G02B5/10 , G02B7/18 , G02B27/18
CPC分类号： G09B9/326 , G02B26/06
摘要： A deformable mirror system for reduction of projected image distortion in an optical system is disclosed. The mirror is adapted to correct for ray direction. In accordance with the invention, a mirror is located near an intermediate image plane. The distortion in the image is predetermined, and the mirror is contorted in a manner determined by the distortion to be corrected; relationships are prescribed for the desired contortion. Significant reduction in distortion can be achieved by placement of a mirror near the image plane; furthere reduction can be achieved in accordance with the invention by the placement of an additional contorted mirror at a subsequent image-forming aperture in the optical system.
摘要翻译：公开了一种用于减少光学系统中的投影图像失真的可变形反射镜系统。镜子适用于校正射线方向。根据本发明，反射镜位于中间像平面附近。图像中的失真是预定的，并且以由待校正的失真确定的方式扭曲反射镜; 关系是为了期望的扭曲而规定的。可以通过在镜面附近放置反射镜来实现明显的失真减少; 通过在光学系统中的随后的图像形成孔处放置附加的扭转反射镜，可以根据本发明实现缩小。

10. 发明授权

US5405680A Selective emissivity coatings for interior temperature reduction of an enclosure 失效
标题翻译：用于室内温度降低的选择性辐射涂层
公开(公告)号：US5405680A
公开(公告)日：1995-04-11
申请号：US263151
申请日：1994-06-16
申请人： David B. Chang , Slava A. Pollack , I-Fu Shih , Albert J. Jicha
发明人： David B. Chang , Slava A. Pollack , I-Fu Shih , Albert J. Jicha
IPC分类号： B05D5/00 , B05D7/00 , B05D7/14 , B05D7/24 , C03C17/22 , C03C17/34 , C09D5/00 , G02B5/28 , C23C14/06
CPC分类号： C03C17/3435 , C03C17/22 , C03C17/347 , C03C17/3476 , C03C17/3488 , C09D5/00 , C03C2217/283 , C03C2217/288 , C03C2217/289 , C03C2217/29 , Y10S428/913 , Y10T428/24942 , Y10T428/2993
摘要： Selective emissivity coatings are disclosed for temperature reduction of enclosures such as vehicles and building structures. The coating includes a selective emissivity material such as silicon-oxy-nitride having a desired thermal emissivity function which is high in the 8-13 micron wavelength region, and low elsewhere except in the visible wavelength region. The material provides a mechanism for radiative cooling of the enclosure by converting the blackbody radiation of the enclosure, which would be reflected by the earth's atmosphere, into far infrared radiation which is transmitted by the atmosphere. According to another aspect of the invention, the coating further comprises a semimetal which is reflective of radiation in the near infrared region, thereby reducing the solar heat load on the enclosure. One suitable semimetal is LaB.sub.6. The coating may be applied to the exterior surface of vehicle and building windows, or to the exterior, non-window surfaces of building structures. For the latter, the coating may take the form of a conventional paint to which is added tiny particles of the semimetal and selective emissivity materials to achieve the radiative cooling and reflection of incident infrared radiation.
摘要翻译：公开了选择性辐射涂层用于诸如车辆和建筑结构之类的外壳的温度降低。涂层包括选择性发射率材料，例如具有期望的热发射率函数的硅 - 氮化物，其在8-13微米波长区域中是高的，并且在可见波长区域中除外。该材料通过将被地球大气层反射的外壳的黑体辐射转换成由大气传播的远红外辐射而提供了用于辐射冷却外壳的机构。根据本发明的另一方面，涂层还包括反射近红外区域中的辐射的半金属，从而减少外壳上的太阳能热负荷。一种合适的半金属是LaB6。涂层可以施加到车辆和建筑物窗户的外表面，或施加到建筑结构的外部非窗户表面。对于后者，涂层可以采用常规涂料的形式，其中添加了半金属和选择性发射材料的微小颗粒，以实现入射红外辐射的辐射冷却和反射。

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