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1. 发明授权

US07440113B2 Littrow interferometer 失效
标题翻译： Littrow干涉仪
公开(公告)号：US07440113B2
公开(公告)日：2008-10-21
申请号：US11316855
申请日：2005-12-23
申请人： William R Trutna, Jr. , Geraint Owen , Alan B Ray , James Prince , Eric Stephen Johnstone , Miao Zhu , Leonard S Cutler
发明人： William R Trutna, Jr. , Geraint Owen , Alan B Ray , James Prince , Eric Stephen Johnstone , Miao Zhu , Leonard S Cutler
IPC分类号： G01D5/36 , G01N11/02
CPC分类号： G01D5/266 , G01D5/38
摘要： An apparatus and method for measuring displacement includes a light beam directed to an interferometer core that splits the light beam into first and second component beams. The first component beam is directed to a diffraction grating at approximately a Littrow angle. A diffraction is received by the interferometer core and is combined with the second component beam. The combination of the first and second component beams is measured to determine displacement of the diffraction grating.
摘要翻译：用于测量位移的装置和方法包括指向干涉仪芯的光束，其将光束分成第一和第二分量光束。第一分量光束以大约Littrow角度被引导到衍射光栅。衍射由干涉仪芯接收并与第二分量光束组合。测量第一和第二分量光束的组合以确定衍射光栅的位移。

2. 发明授权

US07545507B2 Displacement measurement system 有权
标题翻译：位移测量系统
公开(公告)号：US07545507B2
公开(公告)日：2009-06-09
申请号：US11686855
申请日：2007-03-15
申请人： William Clay Schluchter , Miao Zhu , Geraint Owen , Alan B. Ray , Carol J. Courville
发明人： William Clay Schluchter , Miao Zhu , Geraint Owen , Alan B. Ray , Carol J. Courville
IPC分类号： G01B11/02
CPC分类号： G01D5/38 , G01D5/28 , G03F7/70775
摘要： A displacement measurement apparatus includes a light source, a splitter grating, a measurement grating, and first a second detector arrays. The splitter grating splits a light beam into first and second measurement channels that each illuminates the measurement grating. The first and second measurement channels split into 0th and 1st order diffraction products at the measurement grating in a first pass and recombine at the measurement grating in a second pass before being measured at the first and second detector arrays.
摘要翻译：位移测量装置包括光源，分离器光栅，测量光栅以及第一检测器阵列。分离器光栅将光束分成第一和第二测量通道，每个测量通道照亮测量光栅。第一和第二测量通道在第一次通过时在测量光栅处分裂为第0和第1级衍射产物，并且在第一和第二检测器阵列测量之前在第二遍中在测量光栅处重新组合。

3. 发明申请

US20080225262A1 Displacement Measurement System 有权
标题翻译：位移测量系统
公开(公告)号：US20080225262A1
公开(公告)日：2008-09-18
申请号：US11686855
申请日：2007-03-15
申请人： William Clay Schluchter , Miao Zhu , Geraint Owen , Alan B. Ray , Carol J. Courville
发明人： William Clay Schluchter , Miao Zhu , Geraint Owen , Alan B. Ray , Carol J. Courville
IPC分类号： G01C3/08 , G02B5/18 , G02B5/30
CPC分类号： G01D5/38 , G01D5/28 , G03F7/70775
摘要： A displacement measurement apparatus includes a light source, a splitter grating, a measurement grating, and first a second detector arrays. The splitter grating splits a light beam into first and second measurement channels that each illuminates the measurement grating. The first and second measurement channels split into 0th and 1st order diffraction products at the measurement grating in a first pass and recombine at the measurement grating in a second pass before being measured at the first and second detector arrays.
摘要翻译：位移测量装置包括光源，分离器光栅，测量光栅以及第一检测器阵列。分离器光栅将光束分成第一和第二测量通道，每个测量通道照亮测量光栅。第一和第二测量通道在第一次通过时在测量光栅处分裂为0和/或1阶衍射产物，并在第二次通过期间在测量光栅处重新组合，之后为在第一和第二检测器阵列处测量。

4. 发明申请

US20070146722A1 Littrow interferometer 失效
标题翻译： Littrow干涉仪
公开(公告)号：US20070146722A1
公开(公告)日：2007-06-28
申请号：US11316855
申请日：2005-12-23
申请人： William Trutna , Geraint Owen , Alan Ray , James Prince , Eric Johnstone , Miao Zhu , Leonard Cutler
发明人： William Trutna , Geraint Owen , Alan Ray , James Prince , Eric Johnstone , Miao Zhu , Leonard Cutler
IPC分类号： G01B9/02
CPC分类号： G01D5/266 , G01D5/38
摘要： An apparatus and method for measuring displacement includes a light beam directed to an interferometer core that splits the light beam into first and second component beams. The first component beam is directed to a diffraction grating at approximately a Littrow angle. A diffraction is received by the interferometer core and is combined with the second component beam. The combination of the first and second component beams is measured to determine displacement of the diffraction grating.
摘要翻译：用于测量位移的装置和方法包括指向干涉仪芯的光束，其将光束分成第一和第二分量光束。第一分量光束以大约Littrow角度被引导到衍射光栅。衍射由干涉仪芯接收并与第二分量光束组合。测量第一和第二分量光束的组合以确定衍射光栅的位移。

5. 发明授权

US07197208B2 Wavelength tunable light sources and methods of operating the same 失效
标题翻译：波长可调光源及其操作方法
公开(公告)号：US07197208B2
公开(公告)日：2007-03-27
申请号：US10823191
申请日：2004-04-13
申请人： William R. Trutna, Jr. , Geraint Owen
发明人： William R. Trutna, Jr. , Geraint Owen
IPC分类号： G02B6/34 , G02B6/36
CPC分类号： H01S3/1068 , H01S3/083 , H01S3/137 , H01S5/065 , H01S5/0654 , H01S5/1071 , H01S5/141
摘要： Wavelength tunable light sources and methods of operating the same are described. In one aspect, a wavelength tunable light source includes a resonant light path, an optical gain medium, an optical grating, a first acousto-optic deflector, and a second acousto-optic deflector. In another aspect, a light source has a resonant light path containing first and second acousto-optic devices for tuning an output light beam over a specified frequency range with an output wavelength profile. The first acousto-optic device is driven with a first signal having a first time-varying frequency profile. The second acousto-optic device is driven with a second signal having a second time-varying frequency profile, wherein the second time-varying frequency profile differs from the first time-varying frequency profile by an amount substantially proportional to a time rate is of change of the output wavelength profile. In this way, the output light beam is tunable over the specified frequency range without observable hopping between longitudinal modes.
摘要翻译：描述了波长可调光源及其操作方法。一方面，波长可调光源包括谐振光路，光增益介质，光栅，第一声光偏转器和第二声光偏转器。在另一方面，光源具有包含第一和第二声光器件的谐振光路，用于利用输出波长分布调谐在特定频率范围上的输出光束。第一声光装置由具有第一时变频率分布的第一信号驱动。所述第二声光装置用具有第二时变频率分布的第二信号驱动，其中所述第二时变频率分布与所述第一时变频率分布不同，所述第一时变频率分布与时间速率变化大致成正比的输出波长分布。以这种方式，输出光束可以在指定的频率范围内调节，而不需要在纵向模式之间进行可观察的跳跃。

6. 发明申请

US20060182156A1 Tuning a laser 审中-公开
标题翻译：调整激光
公开(公告)号：US20060182156A1
公开(公告)日：2006-08-17
申请号：US11058152
申请日：2005-02-15
申请人： Geraint Owen , William Trutna
发明人： Geraint Owen , William Trutna
IPC分类号： H01S3/10 , H01S3/098
CPC分类号： H01S3/1068 , H01S3/137 , H01S5/14
摘要： A method for synchronously tuning a laser in a laser system having a set of possible resonant frequencies including a resonating mode resonant frequency, an optical amplifier with an optical gain and a mode filter having a center frequency includes the steps of determining the optical gain of the optical amplifier and providing an optical gain signal representative of the optical gain. An apparatus for synchronously tuning a laser in a laser system has a set of possible resonant frequencies including a resonating mode resonant frequency and a mode filter having a pass band with a center frequency. The apparatus has an optical amplifier having an optical gain and a frequency shifter. The frequency shifter shifts the center frequency of the pass band in accordance with the optical gain to move the center frequency of the pass band toward the resonating mode resonant frequency.
摘要翻译：一种用于在具有包括谐振模式共振频率的一组可能谐振频率的激光系统中同步调谐激光的方法，具有光学增益的光放大器和具有中心频率的模式滤波器的方法包括以下步骤：确定光放大器，并提供表示光增益的光增益信号。用于在激光系统中同步调谐激光的装置具有包括谐振模式共振频率的可能谐振频率的集合和具有中心频率的通带的模式滤波器。该装置具有具有光学增益和频率移位器的光学放大器。频移器根据光学增益移动通带的中心频率，以使通带的中心频率朝向谐振模式谐振频率移动。

7. 发明授权

US06865037B2 System and method for adjusting the optical path length of an optical path 失效
标题翻译：用于调整光路的光路长度的系统和方法
公开(公告)号：US06865037B2
公开(公告)日：2005-03-08
申请号：US10272674
申请日：2002-10-17
申请人： Dennis Carlo Diaz , Geraint Owen , Susan Hunter , George M. Clifford, Jr.
发明人： Dennis Carlo Diaz , Geraint Owen , Susan Hunter , George M. Clifford, Jr.
IPC分类号： G01J3/453 , G02B7/00 , G02B26/00 , G02B26/06 , G02B5/08
CPC分类号： G02B26/06 , G01J3/453 , G02B7/006 , G02B26/0883
摘要： Systems and methods for adjusting optical path length of an optical path are provided. The systems and methods can be used to controllably adjust optical path length in an external cavity laser. A representative optical path having a first end and a second end comprises a first transparent refractive element located in the optical path between the first end and the second end. The transparent refractive element is adjustable to adjust the optical path length of the optical path without changing the physical distance between the first end and the second end. A representative method includes introducing a transparent refractive element into the optical path and adjusting the transparent refractive element to change the optical path length without changing the physical distance between the first end and the second end of the optical path.
摘要翻译：提供了用于调节光路的光程长度的系统和方法。该系统和方法可用于可控地调节外腔激光器中的光程长度。具有第一端和第二端的代表性光路包括位于第一端和第二端之间的光路中的第一透明折射元件。透明折射元件是可调节的，以调节光路的光路长度，而不改变第一端和第二端之间的物理距离。一种代表性的方法包括将透明折射元件引入光路并调节透明折射元件以改变光路长度，而不改变光路的第一端和第二端之间的物理距离。

8. 发明授权

US06233084B1 Optical display system including an achromatized ferroelectric light valve 失效
标题翻译：光学显示系统包括一个消色差铁电光阀
公开(公告)号：US06233084B1
公开(公告)日：2001-05-15
申请号：US09363271
申请日：1999-07-28
申请人： Geraint Owen , Laurence M. Hubby, Jr.
发明人： Geraint Owen , Laurence M. Hubby, Jr.
IPC分类号： G02F103
CPC分类号： H04N9/3158 , G02F1/13363 , G02F1/141 , G02F2001/133637 , H04N5/7441
摘要： An optical display system includes a source of white uncollimated light, a color separator for separating the white light into spectral components, a reflective ferroelectric light valve for spatially modulating the spectral components, and a polarizing beam splitter for directing vertically polarized light towards a display lens. The system further includes a corrective film disposed in an optical path between the white light source and the light valve. The film, which may be made of a ferroelectric material or other birefringent material, ensures that retardance of the light valve is approximately 180 degrees or some other desired angle over a spectrum of interest. In this manner, the light valve is achromatized by the film.
摘要翻译：一种光学显示系统，包括白色未预激光源，用于将白光分离为光谱分量的分色器，用于空间调制光谱分量的反射铁电光阀，以及用于将垂直偏振光引向显示透镜的偏振分束器。该系统还包括设置在白光源和光阀之间的光路中的校正膜。可以由铁电材料或其他双折射材料制成的膜确保光阀的延迟在感兴趣的光谱上大约为180度或一些其它期望的角度。以这种方式，光阀被薄膜消色差。

9. 发明授权

US4463265A Electron beam proximity effect correction by reverse field pattern exposure 失效
标题翻译：通过反向场图案曝光的电子束接近效应校正
公开(公告)号：US4463265A
公开(公告)日：1984-07-31
申请号：US389306
申请日：1982-06-17
申请人： Geraint Owen , Paul Rissman
发明人： Geraint Owen , Paul Rissman
IPC分类号： H01L21/027 , G03F7/20 , H01J37/317 , H01L21/30 , H01J3/00
CPC分类号： B82Y10/00 , B82Y40/00 , G03F7/2061 , H01J37/3174 , H01L21/30 , H01J2237/31769 , H01J2237/31771
摘要： In electron beam lithography, a beam of incident electrons exposes a preselected circuit pattern in a thin resist layer deposited on top of a substrate to be etched. Some of the electrons scatter from the substrate back into the resist layer producing an undesired exposure which produces variable resolution of features. In accordance with the disclosed technique, the region of the resist which is complementary to the desired circuit pattern is also exposed by an electron beam which has been adjusted to produce an exposure approximating that due to backscattering. This additional exposure removes the spatial variability in resolution attainable by the electron beam lithography.
摘要翻译：在电子束光刻中，入射电子束在沉积在要蚀刻的衬底顶部的薄抗蚀剂层中暴露预选电路图案。一些电子从衬底返回到抗蚀剂层中，产生不期望的暴露，产生可变分辨率的特征。根据所公开的技术，与期望的电路图案互补的抗蚀剂的区域也被电子束曝光，电子束已被调整以产生接近于由于后向散射引起的曝光。这种额外的曝光消除了通过电子束光刻获得的分辨率的空间变异性。

10. 发明授权

US07247836B2 Method and system for determining motion based on difference image correlation 有权
标题翻译：基于差分图像相关性确定运动的方法和系统
公开(公告)号：US07247836B2
公开(公告)日：2007-07-24
申请号：US11014482
申请日：2004-12-16
申请人： S. Jeffrey Rosner , Geraint Owen , George M. Clifford, Jr.
发明人： S. Jeffrey Rosner , Geraint Owen , George M. Clifford, Jr.
IPC分类号： G09G5/08
CPC分类号： G06F3/0317
摘要： An imager captures successive images of an object. One image is then subtracted from another image to generate difference images. Each difference image is then correlated with itself or with one of the images used to generate the difference image to determine the relative motion between the imager an the object.
摘要翻译：成像仪捕获对象的连续图像。然后从另一个图像中减去一个图像以生成差异图像。然后将每个差分图像与其自身或用于生成差异图像的图像之一相关联，以确定成像器与对象之间的相对运动。

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