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公开(公告)号：US08094270B2
公开(公告)日：2012-01-10
申请号：US11564500
申请日：2006-11-29
IPC分类号： G02F1/1335 , G02F1/13
CPC分类号： H04N9/3167 , G02B1/115 , G02B5/3083 , G03B21/14 , G03B21/2073 , G03B33/12 , H04N9/3105
摘要： An oblique angle deposition is used to provide an A-plate optical retarder having at least one dense, form-birefringent layer. According to one embodiment, the dense, form-birefringent layer(s) are deposited as part of an FBAR stack to provide an all-dielectric full-function A/−C-plate trim retarder for LCD birefringence compensation. Advantageously, the dense structure of the full-function A/−C-plate trim retarder offers high durability and/or stability, thus making it well suited for providing polarization compensation in high light flux polarization-based projection systems.
摘要翻译： 使用斜角沉积来提供具有至少一个致密的双折射层的A板光学延迟器。 根据一个实施例，致密的成形双折射层作为FBAR堆叠的一部分沉积，以提供用于LCD双折射补偿的全介质全功能A / -C板修整延迟器。 有利地，全功能A / -C板微调延迟器的致密结构提供高耐久性和/或稳定性，因此使其非常适合于在高光通量极化基投影系统中提供偏振补偿。
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公开(公告)号：US08164721B2
公开(公告)日：2012-04-24
申请号：US11591623
申请日：2006-11-01
IPC分类号： G02F1/1335
CPC分类号： G02B5/3083 , G02B5/3058 , G02F1/133634 , H04N9/3167
摘要： A grating trim retarder fabricated from a form-birefringent multi-layer dielectric stack including at least one anti-reflection coating and supported on a transparent substrate is provided. The form-birefringent dielectric stack includes an axially-inhomogeneous element in the form of a −C-plate grating and a transversely-inhomogeneous element in the form of an A-plate grating. Each of the −C-plate and the A-plate gratings are fabricated with dimensions to form a zeroth order sub-wavelength grating structure. Fabricating the grating trim retarder with anti-reflection coatings and/or a segment where the −C-plate and A-plate grating overlap enables the in-plane and out-of-plane retardances to be tailored independently according to the desired application.
摘要翻译： 提供了由包括至少一个抗反射涂层并且支撑在透明基板上的双折射多层电介质叠层制造的光栅修整延迟器。 形式双折射介质堆叠包括呈-C板格栅形式的轴向不均匀元件和A板格栅形式的横向不均匀的元件。 -C板和A板光栅中的每一个被制造成具有尺寸以形成零级亚波长光栅结构。 制造具有抗反射涂层和/或-C板和A板光栅重叠的光栅调整缓速器可以根据所需的应用独立地调整平面内和平面外的延迟。
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公开(公告)号：US07848020B2
公开(公告)日：2010-12-07
申请号：US11753946
申请日：2007-05-25
申请人： Karen D. Hendrix , Kim L. Tan
发明人： Karen D. Hendrix , Kim L. Tan
IPC分类号： G02B1/10
CPC分类号： G02B5/3083 , G02B5/3016
摘要： Thin-film coatings, which for example have alternating layers of high and low refractive index materials, are shown to function as both positive and negative C-plates, in dependence upon the incident radiation. In particular, the shape of the retardance versus angle of incidence profile is found to be determined, at least in part, by the phase thickness of the thin film coating (i.e., the optical thickness in terms of the wavelength of the incident radiation, which may, for example, be expressed in degrees, radians, or as the number of quarter wavelengths). These thin film coatings are optionally integrated into anti-reflection coatings, thin film interference filters and/or other components to improve efficiency and/or functionality.
摘要翻译： 根据入射辐射，薄膜涂层，例如具有高折射率材料和低折射率材料的交替层，被证明可用作正C板和负C板。 特别地，发现延迟与入射角分布的形状至少部分地由薄膜涂层的相位厚度确定（即，根据入射辐射的波长的光学厚度，其中 可以例如以度数，弧度或四分之一波长的数量表示）。 这些薄膜涂层可任选地集成到抗反射涂层，薄膜干涉滤光片和/或其他部件中以提高效率和/或功能性。
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公开(公告)号：US20070285601A1
公开(公告)日：2007-12-13
申请号：US11753946
申请日：2007-05-25
申请人： Karen D. Hendrix , Kim L. Tan
发明人： Karen D. Hendrix , Kim L. Tan
IPC分类号： G02F1/1335
CPC分类号： G02B5/3083 , G02B5/3016
摘要： Thin-film coatings, which for example have alternating layers of high and low refractive index materials, are shown to function as both positive and negative C-plates, in dependence upon the incident radiation. In particular, the shape of the retardance versus angle of incidence profile is found to be determined, at least in part, by the phase thickness of the thin film coating (i.e., the optical thickness in terms of the wavelength of the incident radiation, which may, for example, be expressed in degrees, radians, or as the number of quarter wavelengths). These thin film coatings are optionally integrated into anti-reflection coatings, thin film interference filters and/or other components to improve efficiency and/or functionality.
摘要翻译： 根据入射辐射，薄膜涂层，例如具有高折射率材料和低折射率材料的交替层，被证明可用作正C板和负C板。 特别地，发现延迟与入射角分布的形状至少部分地由薄膜涂层的相位厚度确定（即，根据入射辐射的波长的光学厚度，其中 可以例如以度数，弧度或四分之一波长的数量表示）。 这些薄膜涂层可任选地集成到抗反射涂层，薄膜干涉滤光片和/或其他部件中以提高效率和/或功能性。
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公开(公告)号：US20130010360A1
公开(公告)日：2013-01-10
申请号：US13520190
申请日：2011-01-03
申请人： Andrew J. Ouderkirk , Zhisheng Yun , Kim L. Tan
发明人： Andrew J. Ouderkirk , Zhisheng Yun , Kim L. Tan
CPC分类号： G02B27/283 , G02B27/0927 , G02B27/0977 , G02B2207/117
摘要： Generally, the present disclosure describes a compact optical integrator that provides an increased path length for a beam of light in a compact projection system. The increased path length can improve the uniformity of the light passing through the compact projection system, with a minimal increase in the size of the system. The light can be homogenized by mixing light entering the integrator from different regions of the input area. The compact optical integrator can be positioned in the optical path between a light source and a spatial light modulator, such as a liquid crystal display (LCD) or a digital micro-mirror (DMM) array.
摘要翻译： 通常，本公开描述了一种紧凑型光学积分器，其为紧凑投影系统中的光束提供增加的路径长度。 增加的路径长度可以提高通过紧凑型投影系统的光的均匀性，同时系统尺寸的增加最小。 可以通过混合从输入区域的不同区域进入积分器的光来均衡光。 紧凑型光学积分器可以位于光源和诸如液晶显示器（LCD）或数字微镜（DMM）阵列之类的空间光调制器之间的光路中。
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公开(公告)号：US20110273770A1
公开(公告)日：2011-11-10
申请号：US13129888
申请日：2009-11-18
CPC分类号： G02B27/145 , G02B27/102 , G02B27/283
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. In one aspect, the received light inputs are unpolarized, and the combined light output is also unpolarized. The optical elements are configured to minimize the passage of light which may be damaging to wave-length-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。 在一个方面，所接收的光输入是非偏振的，并且组合的光输出也是非偏振的。 光学元件被配置为使光的通过最小化，这可能损害光组合器中的波长敏感部件。 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：US06909511B2
公开(公告)日：2005-06-21
申请号：US10082328
申请日：2002-02-26
CPC分类号： G02B6/29395 , G02B6/29349 , G02B6/29358 , G02B6/29398
摘要： An apparatus is described for controlling the optical path length in an optical device, e.g. an interferometer, and more importantly to maintaining the optical path length difference in an interferometer. The apparatus may include an adjustable plate optically coupled with a beamsplitter. The plate may be rotated such that its surface receives light propagated from the beamsplitter at a non-zero incident angle. In one embodiment, temperature sensitivity is addressed by ensuring that the refractive index of the plate is greater than the refractive index of the beamsplitter. In another embodiment, the apparatus includes combination spacers having a component selected in dependence upon a composition, thickness, and orientation of the adjustable plate.
摘要翻译： 描述了一种用于控制光学装置中的光路长度的装置，例如， 干涉仪，更重要的是保持干涉仪中的光程长度差异。 该装置可以包括与分束器光学耦合的可调节板。 板可以旋转，使得其表面以非零入射角接收从分束器传播的光。 在一个实施例中，通过确保板的折射率大于分束器的折射率来解决温度敏感性。 在另一个实施例中，该装置包括具有根据可调节板的组成，厚度和取向选择的部件的组合间隔件。
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公开(公告)号：US07715084B2
公开(公告)日：2010-05-11
申请号：US12424168
申请日：2009-04-15
申请人： Kim L. Tan , David M. Shemo , Scott McEldowney
发明人： Kim L. Tan , David M. Shemo , Scott McEldowney
CPC分类号： G02B27/48 , G02B27/286 , H04N9/3126 , H04N9/3161 , Y10S359/90
摘要： A method and apparatus for reducing speckle in a laser illumination system uses a despeckle device including an optical retarder providing an odd integer multiple of substantially half-wave retardation for light emitted from a coherent laser in the laser illumination system. The near half-wave optical retarder has a substantially constant retardance and a spatially varied slow axis. The spatially varied slow axis imposes a phase mask on the beam of light, which provides sub-resolution optical phase modulation to a resolution spot on the detector. The near half-wave optical retarder is actuated mechanically or electrically to vary the sub-resolution optical phase modulation within an integration time of the detector.
摘要翻译： 一种用于减少激光照射系统中的散斑的方法和装置，使用了一种去斑装置，它包括一个光学延迟器，为激光照射系统中的相干激光发出的光提供了实质上半波延迟的奇整数倍。 近半波延迟器具有基本恒定的延迟和空间上变化的慢轴。 空间变化的慢轴在光束上施加相位掩模，其向检测器上的分辨率点提供亚分辨率的光相位调制。 靠近半波长的光学延迟器被机械或电气地驱动以在检测器的积分时间内改变子分辨率的光学相位调制。
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