公开(公告)号：US5574553A

公开(公告)日：1996-11-12

申请号：US363793

申请日：1994-12-27

申请人： Paul F. McManamon ,  Gary D. Sharp ,  Michael S. Salisbury ,  Steven A. Serati

发明人： Paul F. McManamon ,  Gary D. Sharp ,  Michael S. Salisbury ,  Steven A. Serati

IPC分类号： G01S7/491 ,  H04B10/148 ,  H04B10/158 ,  G01C3/08 ,  G01P3/36 ,  H04B10/00

CPC分类号： H04B10/64 ,  G01S7/4917 ,  H04B10/61 ,  H04B10/614

摘要： To greatly increase the sensitivity of a Heterodyne Ladar System, the receiver incorporates an optical preamplifier to amplify the ladar return signal prior to detection. This results in an increase in return signal power on the order of 25 dB. Spontaneous emission noise added by the fiber amplifier counters this gain in a normal scheme. The proposed receiver, however, incorporates a Polarization Optical Mixer to perform balanced mixing, thus rejecting added spontaneous emission beat noise terms and resulting in a large increase in system sensitivity.

摘要翻译： 为了大大增加Heterodyne Ladar系统的灵敏度，接收机包含一个光学前置放大器，用于在检测之前放大后退返回信号。 这导致25dB的信号功率增加。 由光纤放大器增加的自发辐射噪声以正常方案计数此增益。 然而，所提出的接收机包含偏振光混合器以进行平衡混合，从而拒绝添加的自发发射节拍噪声项，并导致系统灵敏度的大幅增加。

公开(公告)号：US5381253A

公开(公告)日：1995-01-10

申请号：US792284

申请日：1991-11-14

申请人： Gary D. Sharp ,  Kristina M. Johnson ,  Mark O. Freeman

发明人： Gary D. Sharp ,  Kristina M. Johnson ,  Mark O. Freeman

IPC分类号： G02F1/13 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/135 ,  G02F1/137 ,  G02F1/139 ,  G02F1/141 ,  G02F1/21 ,  G02F1/133

CPC分类号： G02F1/1418 ,  G02F1/13471 ,  G02F1/135 ,  G02F1/141 ,  G02F1/216 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/13439 ,  G02F2001/133638 ,  G02F2001/133738 ,  G02F2001/133742 ,  G02F2203/05 ,  G02F2203/055 ,  G02F2203/06 ,  G02F2203/50

摘要： The present invention provides optical modulators which comprise aligned chiral smectic liquid crystal cells within an optical resonance cavity. The cavity configurations include symmetric and asymmetric Fabry-Perot etalons. The liquid crystal cells can be planar- or homeotropically-aligned and can be discrete state or analog cells. The device configurations of the present invention provide discrete or continuous optical modulation of the phase, intensity, and wavelength of elliptically polarized light, without requiring polarization analyzers. The modulators are optically or electronically addressable in single pixels or arrays of multiple pixels. Certain homeotropically-aligned cells are provided as an aspect of this invention, as are certain variable retarders comprised of planar-aligned cells in combination with birefringent elements.

摘要翻译： 本发明提供光学调制器，其在光学谐振腔内包括对准的手性近晶液晶单元。 腔配置包括对称和不对称法布里 - 珀罗标准具。 液晶单元可以是平面的或垂直取向的，并且可以是离散的状态或模拟单元。 本发明的器件配置提供了不需要偏振分析器的椭圆偏振光的相位，强度和波长的离散或连续光学调制。 调制器可以在单个像素或多个像素阵列中光学或电子寻址。 作为本发明的一个方面提供了一些垂直取向的单元，以及由双折射元件组合的平面排列单元组成的某些可变延迟器。

公开(公告)号：US11294113B2

公开(公告)日：2022-04-05

申请号：US16037934

申请日：2018-07-17

申请人： Gary D. Sharp

发明人： Gary D. Sharp

IPC分类号： G02B5/30 ,  G02F1/13363

摘要： A compound retarder that creates independent control of Re and Rth. This can be done by forming a three-layer compound retarder, including a pair of matched −A-plates, combined with single +A-plate. The +A-plate is typically an MD-stretched film, with retardation that is specific to the in-plane requirements (Re) of the application. The pair of −A-plates have their optic axes crossed, such that Re=0, with an optic axis aligned parallel to the +A-plate. A single retardation value for the −A-plate can produce improved field-of-view performance over a broad range of Revalues, making it a very practical means of universal compensation. While Rthis typically associated with a single retarder, retarder stacks with a diverse range of optic-axis orientations can be considered to have a compound (or composite) Rth value (RthC). The three-layer compound retarder has the practical benefit of enabling field-of-view compensation across a broad range of normal-incidence polarization transformations.

公开(公告)号：US09823561B2

公开(公告)日：2017-11-21

申请号：US13549304

申请日：2012-07-13

申请人： Gary D. Sharp ,  David A. Coleman ,  Darlene K. Kondo

发明人： Gary D. Sharp ,  David A. Coleman ,  Darlene K. Kondo

IPC分类号： B32B37/12 ,  G03B21/56

CPC分类号： G03B21/56 ,  Y10T156/1089 ,  Y10T428/24752

摘要： The present disclosure describes a manufacturing method for seaming materials. The process may be suitable for manufacturing high performance projection screens using a number of methods including, but not limited to, conventional (convert-before-coating) methods, or convert-after-coating methods. An objective of the present disclosure is to identify a process which may substantially minimize distortion of the local surface normal in the vicinity of the join.

公开(公告)号：US09223142B2

公开(公告)日：2015-12-29

申请号：US13010755

申请日：2011-01-20

申请人： Miller H. Schuck, III ,  Michael G. Robinson ,  Gary D. Sharp

发明人： Miller H. Schuck, III ,  Michael G. Robinson ,  Gary D. Sharp

IPC分类号： G03B21/00 ,  G02B27/22 ,  G02B27/26 ,  G03B21/14 ,  G03B35/20 ,  G03B35/26 ,  H04N13/04

CPC分类号： H04N13/363 ,  G02B15/161 ,  G02B15/177 ,  G02B27/22 ,  G02B27/26 ,  G03B21/14 ,  G03B35/20 ,  G03B35/26 ,  H04N13/334 ,  H04N13/337

摘要： Disclosed embodiments relate to a stereoscopic projection system and methods. An exemplary disclosed projection system includes an optical component disposed between the lenses of a lens arrangement. An exemplary lens arrangement includes a first power group, a second power group, and an aperture stop. In an embodiment, the optical component is disposed between the first power group and the aperture stop. In an exemplary embodiment, the optical component is proximate to the aperture stop. By disposing the optical component closer to or proximate to the aperture stop in the lens arrangement, various benefits may be realized, including improved contrast uniformity.

摘要翻译： 公开的实施例涉及立体投影系统和方法。 一种示例性的公开的投影系统包括设置在透镜装置的透镜之间的光学部件。 示例性透镜装置包括第一电源组，第二电源组和孔径光阑。 在一个实施例中，光学部件设置在第一电源组和孔径光阑之间。 在示例性实施例中，光学部件靠近孔径光阑。 通过将光学部件设置在透镜装置中靠近或靠近孔径光阑的位置，可以实现各种益处，包括改进的对比度均匀性。

公开(公告)号：US08833943B2

公开(公告)日：2014-09-16

申请号：US13550182

申请日：2012-07-16

申请人： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

发明人： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

IPC分类号： G03B21/14 ,  H04N13/04 ,  G02B27/26 ,  G03B35/26 ,  G02B27/28

CPC分类号： G03B35/26 ,  G02B27/2264 ,  G02B27/26 ,  G02B27/283 ,  G03B21/142 ,  G03B21/28 ,  G03B35/22 ,  H04N13/341

摘要： A polarization conversion system (PCS) is located in the output light path of a projector. The PCS may include a polarizing beam splitter, a polarization rotating element, a reflecting element, and a polarization switch. Typically, a projector outputs randomly-polarized light. This light is input to the PCS, in which the PCS separates p-polarized light and s-polarized light at the polarizing beam splitter. P-polarized light is directed toward the polarization switch on a first path. The s-polarized light is passed on a second path through the polarization rotating element (e.g., a half-wave plate), thereby transforming it to p-polarized light. A reflecting element directs the transformed polarized light (now p-polarized) along the second path toward the polarization switch. The first and second light paths are ultimately directed toward a projection screen to collectively form a brighter screen image in cinematic applications utilizing polarized light for three-dimensional viewing.

摘要翻译： 偏振转换系统（PCS）位于投影仪的输出光路中。 PCS可以包括偏振分束器，偏振旋转元件，反射元件和偏振开关。 通常，投影仪输出随机偏振光。 该光被输入到PCS，其中PCS在偏振分束器处分离p偏振光和s偏振光。 P偏振光在第一路径上被引向偏振开关。 s偏振光在穿过偏振旋转元件（例如半波片）的第二路径上通过，从而将其变换为p偏振光。 反射元件将沿着第二路径的变换的偏振光（现在p偏振光）引向偏振开关。 第一和第二光路最终定向到投影屏幕，以在使用偏振光进行三维观看的电影应用中共同形成更亮的屏幕图像。

公开(公告)号：US08727536B2

公开(公告)日：2014-05-20

申请号：US12118640

申请日：2008-05-09

申请人： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

发明人： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

IPC分类号： G03B21/14 ,  G03B21/00

CPC分类号： G02B27/26 ,  G02B13/00 ,  G02B26/008 ,  G02B27/2264 ,  H04N13/337 ,  H04N13/341

摘要： A polarization conversion system separates light from an unpolarized image source into a first state of polarization (SOP) and an orthogonal second SOP, and directs the polarized light on first and second light paths. The SOP of light on only one of the light paths is transformed to an orthogonal state such that both light paths have the same SOP. A polarization modulator temporally modulates the light on the first and second light paths to first and second output states of polarization. First and second projection lenses direct light on the first and second light paths toward a projection screen to form substantially overlapping polarization encoded images. The polarization modulator may be located before or after the projection lenses. The polarization-encoded images may be viewed using eyewear with appropriate polarization filters.

摘要翻译： 偏振转换系统将光从非偏振图像源分离成第一偏振态（SOP）和正交第二SOP，并将偏振光引导到第一和第二光路上。 只有一条光路上的光的SOP被转换成正交状态，使得两个光路具有相同的SOP。 偏振调制器将第一和第二光路上的光暂时调制为第一和第二输出极化状态。 第一和第二投影透镜将第一和第二光路上的光引导到投影屏幕，以形成基本上重叠的偏振编码图像。 偏振调制器可以位于投影透镜之前或之后。 可以使用具有适当的偏振滤光器的眼镜来观察偏振编码的图像。

公开(公告)号：US08526106B2

公开(公告)日：2013-09-03

申请号：US13416693

申请日：2012-03-09

申请人： David A. Coleman ,  Gary D. Sharp

发明人： David A. Coleman ,  Gary D. Sharp

IPC分类号： G03B21/56 ,  G03B21/60

CPC分类号： G03B21/604

摘要： Methods to substantially reduce or eliminate optical non-uniformity across an interface may also substantially improve the strength and ease of seam manufacturing, including joining substrates. The methods may include managing optical non-uniformities at least by broadening a region over which a change in optical loss may occur and/or by maintaining a substantially constant average optical loss across an interface. The methods may also include forming a seam that substantially reduces the appearance of optical non-uniformities at the seam, which may include maintaining approximately constant average loss in the vicinity of the seam by substantially controlling reflectivity in the vicinity of the seam, in which substantially controlling reflectivity in the vicinity of the seam may include employing a backer treated to minimize optical reflectivity over a range of angles.

摘要翻译： 基本上减少或消除界面上的光学不均匀性的方法也可以显着地改善接缝制造的强度和容易性，包括接合基底。 这些方法可以包括至少通过加宽可能发生光损失变化的区域和/或通过维持跨接口的基本恒定的平均光损耗来管理光学不均匀性。 所述方法还可以包括形成接缝，该接缝基本上减少了接缝处的光学不均匀性的外观，其可以包括通过基本上控制接缝附近的反射率来保持接缝附近的大致恒定的平均损耗，其中基本上 控制接缝附近的反射率可以包括采用经过处理的支撑件以使角度范围内的光学反射率最小化。

公开(公告)号：US20130169935A1

公开(公告)日：2013-07-04

申请号：US13550182

申请日：2012-07-16

申请人： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

发明人： Miller H. Schuck ,  Michael G. Robinson ,  Gary D. Sharp

IPC分类号： G02B27/26 ,  G02B27/28

CPC分类号： G03B35/26 ,  G02B27/2264 ,  G02B27/26 ,  G02B27/283 ,  G03B21/142 ,  G03B21/28 ,  G03B35/22 ,  H04N13/341

摘要： A polarization conversion system (PCS) is located in the output light path of a projector. The PCS may include a polarizing beam splitter, a polarization rotating element, a reflecting element, and a polarization switch. Typically, a projector outputs randomly-polarized light. This light is input to the PCS, in which the PCS separates p-polarized light and s-polarized light at the polarizing beam splitter. P-polarized light is directed toward the polarization switch on a first path. The s-polarized light is passed on a second path through the polarization rotating element (e.g., a half-wave plate), thereby transforming it to p-polarized light. A reflecting element directs the transformed polarized light (now p-polarized) along the second path toward the polarization switch. The first and second light paths are ultimately directed toward a projection screen to collectively form a brighter screen image in cinematic applications utilizing polarized light for three-dimensional viewing.

公开(公告)号：US08403488B2

公开(公告)日：2013-03-26

申请号：US12826332

申请日：2010-06-29

申请人： Miller H. Schuck ,  Michael G. Robinson ,  Douglas J. McKnight ,  Gary D. Sharp

发明人： Miller H. Schuck ,  Michael G. Robinson ,  Douglas J. McKnight ,  Gary D. Sharp

IPC分类号： G03B21/00

CPC分类号： G02F1/133528 ,  G02B17/045 ,  G02B27/143 ,  G02B27/26 ,  G03B35/26

摘要： Projection systems and methods for providing stereoscopic images viewed through passive polarizing eyewear. The systems relate to projectors that create left and right eye images simultaneously and often as side-by-side images on the image modulator. The systems act to superimpose the spatially separated images on a projection screen with alternate polarization states. The embodiments are best suited to liquid crystal polarization based projection systems and use advanced polarization control.