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1. 发明授权

US07002752B2 Three-panel color management systems and methods 失效
标题翻译：三面板颜色管理系统和方法
公开(公告)号：US07002752B2
公开(公告)日：2006-02-21
申请号：US10713548
申请日：2003-11-14
申请人： Jianmin Chen , Michael G. Robinson , Gary D. Sharp , Jonathan R. Birge
发明人： Jianmin Chen , Michael G. Robinson , Gary D. Sharp , Jonathan R. Birge
IPC分类号： G02B27/14 , G02B21/14
CPC分类号： G02B27/288
摘要： The present application describes color management architecture for a three-panel projection system that utilizes color selective polarization filters (CSPF) and polarizing beam splitting elements. An exemplary embodiment describes a color management architecture with a dichroic input beam splitter and three polarizing beam splitters. An output polarizing beam splitter is used as an analyzer. The color management system architecture can isolate any color channel from those remaining whose separation and combination are then carried out by a single beamsplitting element. The disclosed embodiments also provide an improvement in the ANSI contrast. In some embodiments, an achromatic quarter-wave plate is used in combination with a color filter to block the light reflected from projection optics.
摘要翻译：本申请描述了利用彩色选择偏振滤光器（CSPF）和偏振分束元件的三面板投影系统的颜色管理架构。示例性实施例描述了具有二向色输入分束器和三个偏振分束器的颜色管理架构。输出偏振分束器用作分析器。颜色管理系统架构可以将任何颜色通道与剩下的颜色通道隔离，然后通过单个分光元件进行分离和组合。所公开的实施例还提供了ANSI对比度的改进。在一些实施例中，消色差四分之一波片与滤色器组合使用以阻挡从投影光学器件反射的光。

2. 发明授权

US06816309B2 Compensated color management systems and methods 有权
标题翻译：补偿色彩管理系统和方法
公开(公告)号：US06816309B2
公开(公告)日：2004-11-09
申请号：US10000227
申请日：2001-11-30
申请人： Jianmin Chen , Michael G. Robinson , Jonathan R. Birge , Gary D. Sharp
发明人： Jianmin Chen , Michael G. Robinson , Jonathan R. Birge , Gary D. Sharp
IPC分类号： G02B2728
CPC分类号： G02B27/288 , Y10S359/90
摘要： Beamsplitters are frequently used in projectors based on reflective liquid crystal displays for separating input and output light, and more recently for color management systems. Retarder stack filters are used in such systems to orthogonally polarize primary colors, converting polarizing beamsplitters to color splitters and combiners. Geometric polarization rotations induced by beamsplitters at moderate f-numbers have the effect of significantly degrading performance. Because retarder stacks in general rely on a specific input polarization to perform properly, such skew rays are responsible for color cross-talk. Retarder stacks designed according to the present invention are sensitive to the symmetries that exit between input and output polarizer configurations. These stacks provide the polarization transformations that will compensate for skew rays, such that normal incidence performance is maintained for all incident light.

3. 发明授权

US06961181B2 Compensated color management systems and methods 有权
标题翻译：补偿色彩管理系统和方法
公开(公告)号：US06961181B2
公开(公告)日：2005-11-01
申请号：US10839479
申请日：2004-05-05
申请人： Jianmin Chen , Michael G. Robinson , Jonathan R. Birge , Gary D. Sharp
发明人： Jianmin Chen , Michael G. Robinson , Jonathan R. Birge , Gary D. Sharp
IPC分类号： G02B27/28 , G03B21/14
CPC分类号： G02B27/288 , Y10S359/90
摘要： Beamsplitters are frequently used in projectors based on reflective liquid crystal display for separating input and output light, and more recently for color management systems. Rather stack filters are used in such systems to orthogonally polarize primary colors, converting polarizing beamsplitters to color splitters and combiners. Geometric polarization rotations induced by beamsplitters at moderate f-numbers have the effect of significantly degrading performance. Because retarder stacks in general rely on a specific input polarization to perform properly, such skew rays are responsible for color cross-talk. Retarder stacks designed according to the present invention are sensitive to the symmetries that exist between input and output polarizer configurations. These stacks provide the polarization transformations that will compensate for skew rays, such that normal incidence performance is maintained for all incident light.
摘要翻译：分束器经常用于基于用于分离输入和输出光的反射液晶显示器的投影仪中，并且最近用于颜色管理系统。在这种系统中使用堆叠滤波器来使原色正交极化，将偏振分束器转换成分色器和组合器。分光镜在中等f数下引起的几何偏振旋转具有显着降低性能的作用。因为延迟器堆叠通常依赖于特定的输入极化来正常地执行，所以这种偏斜光线负责颜色串扰。根据本发明设计的延迟器堆对存在于输入和输出偏振器配置之间的对称性敏感。这些堆叠提供将补偿偏斜光线的偏振变换，使得对于所有入射光保持正常的入射性能。

4. 发明授权

US06961179B2 Compensated color management systems and methods 有权
标题翻译：补偿色彩管理系统和方法
公开(公告)号：US06961179B2
公开(公告)日：2005-11-01
申请号：US10294426
申请日：2002-11-14
申请人： Jianmin Chen , Michael G. Robinson , Gary D. Sharp , Jonathan R. Birge
发明人： Jianmin Chen , Michael G. Robinson , Gary D. Sharp , Jonathan R. Birge
IPC分类号： G02B5/30 , G02B27/28 , G02F1/13 , G03B21/14 , H04N9/31 , G02B27/10
CPC分类号： H04N9/3105 , G02B27/283 , G02B27/288
摘要： Disclosed are color management architectures used in video projection systems including, for example, retarder stacks sensitive to the symmetries between input and output polarizer configurations that provide the polarization transformations that will comprise for skew rays, such that normal incidence performance is maintained for all incident light. Additionally, also disclosed are systems that utilize color selective polarization (CSP) filters and polarizing beam splitting elements such that an output analyzer is not required. One exemplary CSP architecture includes two CSPs, a single polarizing beam splitting element combination for splitting and combining light between two of the three panels, and an output polarizing beam splitting element used as an analyzer such that a single CSP is in the projection path. In all such architectures, an output CSP and clean up polarizer directly in line with the projection optics need not be included, thereby increasing transmission, improving imaging crispness, and reducing cost.
摘要翻译：公开了用于视频投影系统中的颜色管理架构，包括例如对输入和输出偏振器配置之间的对称性敏感的延迟器堆叠，其提供将包括用于偏斜光线的偏振变换，从而保持所有入射光的法向入射性能。此外，还公开了利用彩色选择偏振（CSP）滤光器和偏振光束分离元件的系统，使得不需要输出分析器。一个示例性CSP架构包括两个CSP，用于在三个面板中的两个之间分离和组合光的单个偏振分束元件组合，以及用作分析器的输出偏振分束元件，使得单个CSP处于投影路径中。在所有这样的结构中，不需要包括直接与投影光学器件一致的输出CSP和清除偏振器，从而增加透射率，改善成像脆度并降低成本。

5. 发明授权

US06704065B1 Optical system for producing a modulated color image 失效
标题翻译：用于产生调制彩色图像的光学系统
公开(公告)号：US06704065B1
公开(公告)日：2004-03-09
申请号：US09570548
申请日：2000-05-12
申请人： Gary D. Sharp , Michael G. Robinson , Jonathan R. Birge
发明人： Gary D. Sharp , Michael G. Robinson , Jonathan R. Birge
IPC分类号： G02F11335
CPC分类号： H04N9/3105 , G03B21/006 , G03B33/12 , H04N9/3167
摘要： An optical system divides a light source into its component color bands red, green and blue by making the light travel different physical paths, at least two of these paths use stack retardation films and a polarization beamsplitter. By creating distinct paths, each code can be independently processed and combined to form a single path using a polarization splitter and retarder stack. The system preferably includes an input retarder that aligns a first spectrum of a light from a light source, along a first polarization state, and aligns a second spectrum of the light from the light source, along a second polarization state different than the first polarization state, and a beam splitting unit, optically coupled to the input retarder, and including a first beamsplitter that transmits the first spectrum, as a transmitted spectrum, and that reflects the second spectrum, as a reflected spectrum. The system also includes a first spatial light modulator optically coupled to the beam splitting unit, that alters and reflects the transmitted spectrum, as a modulated transmitted spectrum, towards the beam splitting unit, and a second spatial light modulator optically coupled to the beam splitting unit, that alters and reflects the reflected spectrum, as a modulated reflected spectrum, towards the beam splitting unit. The beam splitting unit combines the modulated transmitted spectrum and the modulated reflected spectrum into a combined spectrum.
摘要翻译：光学系统通过使光线行进不同的物理路径将光源分成红色，绿色和蓝色的分量色带，这些路径中的至少两条使用叠层延迟膜和偏振分束器。通过创建不同的路径，可以独立地处理每个代码并组合使用偏振分离器和延迟器堆叠形成单个路径。该系统优选地包括输入延迟器，其沿着第一偏振状态对准来自光源的光的第一光谱，并且沿着与第一偏振态不同的第二偏振状态对准来自光源的光的第二光谱以及光束分离单元，其光耦合到输入延迟器，并且包括将第一光谱作为透射光谱发射并将反射第二光谱作为反射光谱的第一分束器。该系统还包括光耦合到光束分离单元的第一空间光调制器，其将作为经调制的透射光谱的透射光谱改变和反射到分束单元，以及第二空间光调制器，光耦合到分束单元，将反射光谱作为调制反射光谱改变并反射到分束单元。分束单元将经调制的发射光谱和经调制的反射光谱组合成组合光谱。

6. 发明授权

US07154667B2 Birefringent networks 失效
标题翻译：双折射网络
公开(公告)号：US07154667B2
公开(公告)日：2006-12-26
申请号：US10653345
申请日：2003-09-02
申请人： Jonathan R. Birge , Gary D. Sharp
发明人： Jonathan R. Birge , Gary D. Sharp
IPC分类号： G02B5/30
CPC分类号： G02B27/283 , G02B27/288
摘要： A birefringent network can be formed from a pair of beam directing elements that sandwich a birefringent filter. One of the beam director elements can be a polarizing beam splitter and the other of the beam director elements can be a reflector or polarizing beam splitter. The polarizing beam splitters can be formed by an anisotropic material sandwiched between two isotropic pieces and can include optical films to couple both polarizations of light into and out of the beam splitters. The polarizing beam splitters also can be formed by anisotropic material on either side of an isotropic bow-tie piece, all of which is sandwiched a pair of isotropic pieces. A birefringent network also can be formed by a pair of bulk birefringent beam splitters sandwiching a birefringent filter. Little or no polarization mode dispersion occurs in these birefringent networks since all of the beams travel the same distances through the same elements.
摘要翻译：双折射网络可以由夹着双折射滤光片的一对光束引导元件形成。光束指导元件中的一个可以是偏振分束器，另一个光束指向元件可以是反射器或偏振分束器。偏振分束器可以由夹在两个各向同性片之间的各向异性材料形成，并且可以包括将光的偏振耦合到和离开分束器的光学膜。偏振光束分离器也可以由各向同性的蝴蝶结束片的任一侧上的各向异性材料形成，它们都夹在一对各向同性的片之间。双折射网络也可以由一对夹着双折射滤光器的体双折射分束器形成。由于所有光束通过相同的元件行进相同的距离，所以在这些双折射网络中很少或没有出现偏振模色散。

7. 发明授权

US07433043B2 Two-dimensional spectral shearing interferometry for ultrafast pulse characterization 有权
标题翻译：用于超快速脉冲表征的二维光谱剪切干涉测量
公开(公告)号：US07433043B2
公开(公告)日：2008-10-07
申请号：US11608683
申请日：2006-12-08
申请人： Jonathan R. Birge , Richard Ell , Franz X. Kaertner
发明人： Jonathan R. Birge , Richard Ell , Franz X. Kaertner
IPC分类号： G01B9/02
CPC分类号： G01J9/0215 , G01J3/4535 , G01J11/00
摘要： The phase spectrum of an ultrashort pulse is measured based on two-dimensional spectral shearing interferometry with zero delay. The measurement is performed utilizing an optical source pulse from which is extracted a short pulse and from which a chirped component is generated. The chirped component is split into first and second chirped pulses. The first and second pulses are then mixed with the short pulse in a nonlinear medium to produce up-converted and spectrally sheared copies of the first and second chirped pulses, which are measured in a spectrometer. A plurality of path lengths for the first second chirped pulses is provided to shift the relative phases of the first and second chirped pulses for additional measurements. The apparatus and methods are uniquely suited for characterizing single-cycle pulses.
摘要翻译：基于具有零延迟的二维频谱剪切干涉测量来测量超短脉冲的相位谱。使用从其提取短脉冲的光源脉冲进行测量，并从其产生啁啾分量。啁啾分量被分成第一和第二啁啾脉冲。然后将第一和第二脉冲与非线性介质中的短脉冲混合，以产生在光谱仪中测量的第一和第二啁啾脉冲的上变换和频谱剪切的拷贝。提供用于第一第二啁啾脉冲的多个路径长度以移动用于另外测量的第一和第二啁啾脉冲的相对相位。该装置和方法独特地适用于表征单周期脉冲。

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