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公开(公告)号：US5463312A
公开(公告)日：1995-10-31
申请号：US205899
申请日：1994-03-03
申请人： Dale R. Lutz , Trevor W. MacDougall , William L. Taylor , Wayne F. Varner , Robert A. Wandmacher
发明人： Dale R. Lutz , Trevor W. MacDougall , William L. Taylor , Wayne F. Varner , Robert A. Wandmacher
IPC分类号： G01R15/24 , G01R33/032 , G02B6/02 , G01R1/04
CPC分类号： G01R33/032 , G01R15/246
摘要： A fiber optic, Faraday-effect sensing coil has very low linear and circular birefringence, which remains stable over a wide range of temperatures. The coil is fabricated from a spun fiber having an effective linear beat length of 100 meters or more, and is annealed after being formed into the coil. The coil has improved discrimination for magnetic fields associated with electric current-carrying cables, and may be incorporated into an optical current transducer (OCT), either interferometric or polarimetric.
摘要翻译： 光纤，法拉第效应感测线圈具有非常低的线性和圆形双折射，其在宽的温度范围内保持稳定。 线圈由具有100米以上的有效线性拍子长度的纺丝纤维制成，并且在形成为线圈之后进行退火。 线圈已经改善了与载流电缆相关联的磁场的区分，并且可以被并入到光学电流传感器（OCT）中，无论是干涉测量还是偏振测量。
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2.发明授权Faraday-effect sensing coil with stable birefringence and method of making same 失效具有稳定双折射的法拉第效应感测线圈及其制造方法
公开(公告)号：US5553173A
公开(公告)日：1996-09-03
申请号：US393413
申请日：1995-02-23
申请人： Dale R. Lutz , Trevor W. MacDougall , William L. Taylor , Wayne F. Varner , Robert A. Wandmacher
发明人： Dale R. Lutz , Trevor W. MacDougall , William L. Taylor , Wayne F. Varner , Robert A. Wandmacher
CPC分类号： G01R33/032 , G01R15/246
摘要： A fiber optic, Faraday-effect sensing coil has very low linear and circular birefringence, which remains stable over a wide range of temperatures. The coil is fabricated from a spun fiber having an effective linear beat length of 100 meters or more, and is annealed after being formed into the coil. The coil has improved discrimination for magnetic fields associated with electric current-carrying cables, and may be incorporated into an optical current transducer (OCT), either interferometric or polarimetric.
摘要翻译： 光纤，法拉第效应感测线圈具有非常低的线性和圆形双折射，其在宽的温度范围内保持稳定。 线圈由具有100米以上的有效线性拍子长度的纺丝纤维制成，并且在形成为线圈之后进行退火。 线圈已经改善了与载流电缆相关联的磁场的区分，并且可以被并入到光学电流传感器（OCT）中，无论是干涉测量还是偏振测量。
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公开(公告)号：US5492552A
公开(公告)日：1996-02-20
申请号：US205880
申请日：1994-03-03
CPC分类号： G02B6/2551 , C03B37/15 , G02B6/3628 , G02B6/3636 , G02B6/3684
摘要： A holder for annealing a fiber optic coil uses a silica ring on a silica substrate, or silica tubular coil, either of which may be directly incorporated into a coil subassembly for a Faraday-effect current sensor. The ring may be formed in a silica plate by sandblasting or grinding, or formed separately and adhered to the plate. In the tubular holder embodiment, silica tubes and sleeves are used to protect fusion splices between the ends of the fiber coil and polarizing fibers. Use of silica for most of the subassembly components matches the coefficients of thermal expansion of the subassembly to that of the fiber coil, and also allows the coil to be annealed at extremely high temperatures. Annealing yields fiber coils of lowered birefringence, particularly when used with spun fibers. Ferrules are used to adjust the angular orientation of the fibers with respect to their planes of polarization.
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公开(公告)号：US5570449A
公开(公告)日：1996-10-29
申请号：US407188
申请日：1995-03-21
CPC分类号： G02B6/2551 , C03B37/15 , G02B6/3628 , G02B6/3636 , G02B6/3684
摘要： A holder for annealing a fiber optic coil uses a silica ring on a silica substrate, or silica tubular coil, either of which may be directly incorporated into a coil subassembly for a Faraday-effect current sensor. The ring may be formed in a silica plate by sandblasting or grinding, or formed separately and adhered to the plate. In the tubular holder embodiment, silica tubes and sleeves are used to protect fusion splices between the ends of the fiber coil and polarizing fibers. Use of silica for most of the subassembly components matches the coefficients of thermal expansion of the subassembly to that of the fiber coil, and also allows the coil to be annealed at extremely high temperatures. Annealing yields fiber coils of lowered birefringence, particularly when used with spun fibers. Ferrules are used to adjust the angular orientation of the fibers with respect to their planes of polarization.
摘要翻译： 用于退火光纤线圈的保持器使用二氧化硅衬底上的二氧化硅环或二氧化硅管状线圈，其中任一个可以直接并入用于法拉第效应电流传感器的线圈子组件中。 环可以通过喷砂或研磨在二氧化硅板中形成，或者单独形成并粘附到板上。 在管状保持器实施例中，使用石英管和套管来保护纤维线圈的端部和偏振纤维之间的熔接。 大多数子组件部件使用二氧化硅将子组件的热膨胀系数与纤维线圈的热膨胀系数相匹配，并且还允许线圈在极高温度下退火。 退火产生具有降低的双折射的纤维线圈，特别是当与纺丝纤维一起使用时。 套圈用于调整纤维相对于它们的极化平面的角取向。
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5.发明授权Method of annealing a fiber within a coiled tube to thereby make a fiber coil for a Faraday-effect current-sensor 失效在线圈管内退火纤维的方法，从而制成用于法拉第效应电流传感器的纤维线圈
公开(公告)号：US5645622A
公开(公告)日：1997-07-08
申请号：US407905
申请日：1995-03-21
IPC分类号： G01R15/24 , C03B37/15 , G02B6/00 , G02B6/02 , G02B6/255 , G02B6/36 , C03B23/20 , C03B23/00 , C03B37/00
CPC分类号： G02B6/2551 , C03B37/15 , G02B6/3628 , G02B6/3636 , G02B6/3684
摘要： Silica tubes and sleeves are used to protect fusion splices between the ends of the fiber coil and polarizing fibers. Use of silica for most of the subassembly components matches the coefficients of thermal expansion of the subassembly to that of the fiber coil, and also allows the coil to be annealed at extremely high temperatures. Annealing yields fiber coils of lowered birefringence, particularly when used with spun fibers. Ferrules are used to adjust the angular orientation of the fibers with respect to their planes of polarization.
摘要翻译： 二氧化硅管和套管用于保护纤维线圈端部和极化纤维之间的熔接。 大多数子组件部件使用二氧化硅将子组件的热膨胀系数与纤维线圈的热膨胀系数相匹配，并且还允许线圈在极高温度下退火。 退火产生具有降低的双折射的纤维线圈，特别是当与纺丝纤维一起使用时。 套圈用于调整纤维相对于它们的极化平面的角取向。
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6.发明授权Faraday effect current sensor having two polarizing fibers at an acute angle 失效具有锐角的两个偏振光纤的法拉第效应电流传感器
公开(公告)号：US5051577A
公开(公告)日：1991-09-24
申请号：US496291
申请日：1990-03-20
申请人： Dale R. Lutz , Grieg A. Olson , Gary B. Forsberg
发明人： Dale R. Lutz , Grieg A. Olson , Gary B. Forsberg
IPC分类号： G01R15/24
CPC分类号： G01R15/24 , G01R15/246
摘要： In known Faraday effect current sensors, light is fed into a polarizer, through a coil of field-sensitive optical fiber, and into a polarization measuring device. Such a current sensor can provide greater accuracy of current measurement by using a polarizing optical fiber as its polarizer and splicing the polarizing fiber to the input end of the optical fiber coil. The exit end of the optical fiber coil can be spliced to a second polarizing optical fiber, the other end of which is optically connected to a photodetector. In another embodiment, a mirror at the exit end of the optical fiber coil reflects light back through the coil to second and third polarizing fibers which in turn are optically connected to a pair of photodetectors, thus doubling the Faraday rotation while canceling out reciprocal optical effects.
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公开(公告)号：US20110242653A1
公开(公告)日：2011-10-06
申请号：US13129884
申请日：2009-11-02
申请人： Andrew J. Ouderkirk , Charles L. Bruzzone , Philip E. Watson , Stephen J. Willett , Dale R. Lutz
发明人： Andrew J. Ouderkirk , Charles L. Bruzzone , Philip E. Watson , Stephen J. Willett , Dale R. Lutz
IPC分类号： G02B27/28
CPC分类号： G02B27/102 , G02B27/286
摘要： Optical elements, color combiners using the optical elements, and image projectors using the color combiners are described. The optical elements can be configured as color combiners that receive different wavelength spectrums of light and produce a combined light output that includes the different wavelength spectrums of light. In one aspect, the received light inputs are unpolarized, and the combined light output is polarized in a desired state. The optical elements are configured to minimize the passage of light which may be damaging to wavelength-sensitive components in the light combiner. Image projectors using the color combiners can include imaging modules that operate by reflecting or transmitting polarized light.
摘要翻译： 描述使用光学元件的光学元件，组合器以及使用该颜色组合器的图像投影仪。 光学元件可以被配置为接收不同波长光谱的颜色组合器，并产生包括不同波长光谱的组合光输出。 在一个方面，所接收的光输入是非偏振的，并且组合的光输出在期望的状态下极化。 光学元件被配置为使可能损害光组合器中的波长敏感部件的光的通过最小化。 使用颜色组合器的图像投影仪可以包括通过反射或透射偏振光来操作的成像模块。
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公开(公告)号：US08654444B2
公开(公告)日：2014-02-18
申请号：US13129884
申请日：2009-11-02
申请人： Andrew J. Ouderkirk , Charles L. Bruzzone , Philip E. Watson , Stephen J. Willett , Dale R. Lutz
发明人： Andrew J. Ouderkirk , Charles L. Bruzzone , Philip E. Watson , Stephen J. Willett , Dale R. Lutz
IPC分类号： G02B5/30
CPC分类号： G02B27/102 , G02B27/286
摘要： Optical elements, color combiners using the optical elements, and image projectors using the color combiners are described. The optical elements can be configured as color combiners that receive different wavelength spectrums of light and produce a combined light output that includes the different wavelength spectrums of light. In one aspect, the received light inputs are unpolarized, and the combined light output is polarized in a desired state. The optical elements are configured to minimize the passage of light which may be damaging to wavelength-sensitive components in the light combiner. Image projectors using the color combiners can include imaging modules that operate by reflecting or transmitting polarized light.
摘要翻译： 描述使用光学元件的光学元件，组合器以及使用该颜色组合器的图像投影仪。 光学元件可以被配置为接收不同波长光谱的颜色组合器，并产生包括不同波长光谱的组合光输出。 在一个方面，所接收的光输入是非偏振的，并且组合的光输出在期望的状态下极化。 光学元件被配置为使可能损害光组合器中的波长敏感部件的光的通过最小化。 使用颜色组合器的图像投影仪可以包括通过反射或透射偏振光来操作的成像模块。
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公开(公告)号：US07857457B2
公开(公告)日：2010-12-28
申请号：US11862893
申请日：2007-09-27
IPC分类号： F21V7/04
CPC分类号： G03B21/208 , G02B6/0003 , G03B21/2013 , G03B21/204
摘要： A projection system contains an illumination system having at least a first source of incoherent light capable of generating light in a first wavelength range. The illumination system also includes a body containing a fluorescent material that emits light in a second wavelength range, different from the first wavelength range, when illuminated by light in the first wavelength range. The system further includes at least a second fluorescent material that absorbs light in at least one of the first and second wavelength ranges, and emits light in a third wavelength range. The body has an extraction area, and at least some of the light in either the second or third wavelength ranges is internally reflected within the body to the extraction area. Light from the extraction area illuminates at least one image-forming device. Image light from the image-forming device is projected by a projection lens unit onto a screen.
摘要翻译： 投影系统包含具有能够产生第一波长范围内的光的至少第一非相干光源的照明系统。 照明系统还包括当在第一波长范围内的光照射时，包含发射与第一波长范围不同的第二波长范围内的光的荧光材料的主体。 该系统还包括至少第二荧光材料，其吸收第一和第二波长范围中的至少一个的光，并且发射第三波长范围的光。 身体具有提取区域，并且第二或第三波长范围内的至少一些光在体内被内部反射到提取区域。 来自提取区域的光照亮至少一个图像形成装置。 来自图像形成装置的图像光由投影透镜单元投影到屏幕上。
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公开(公告)号：US20080079910A1
公开(公告)日：2008-04-03
申请号：US11862893
申请日：2007-09-27
CPC分类号： G03B21/208 , G02B6/0003 , G03B21/2013 , G03B21/204
摘要： A projection system contains an illumination system having at least a first source of incoherent light capable of generating light in a first wavelength range. The illumination system also includes a body containing a fluorescent material that emits light in a second wavelength range, different from the first wavelength range, when illuminated by light in the first wavelength range. The system further includes at least a second fluorescent material that absorbs light in at least one of the first and second wavelength ranges, and emits light in a third wavelength range. The body has an extraction area, and at least some of the light in either the second or third wavelength ranges is internally reflected within the body to the extraction area. Light from the extraction area illuminates at least one image-forming device. Image light from the image-forming device is projected by a projection lens unit onto a screen.
摘要翻译： 投影系统包含具有能够产生第一波长范围内的光的至少第一非相干光源的照明系统。 照明系统还包括当在第一波长范围内的光照射时，包含发射与第一波长范围不同的第二波长范围内的光的荧光材料的主体。 该系统还包括至少第二荧光材料，其吸收第一和第二波长范围中的至少一个的光，并且发射第三波长范围的光。 身体具有提取区域，并且第二或第三波长范围内的至少一些光在体内被内部反射到提取区域。 来自提取区域的光照亮至少一个图像形成装置。 来自图像形成装置的图像光由投影透镜单元投影到屏幕上。
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