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公开(公告)号：US06788461B2
公开(公告)日：2004-09-07
申请号：US10635279
申请日：2003-08-06
IPC分类号： G02B530
CPC分类号： G02B5/3058 , G02B27/28 , H01Q15/24
摘要： A wire grid polarizer (300) for polarizing an incident light beam (130) comprises a substrate having a first surface. A grid or array of parallel, elongated, composite wires (310) is disposed on the first surface (307), and each of the adjacent wires are spaced apart on a grid period less than a wavelength of incident light. Each of the wires comprises an intra-wire substructure (315) of alternating elongated metal (330a-i) wires and elongated dielectric layers (350a-i).
摘要翻译： 用于偏振入射光束（130）的线栅偏振器（300）包括具有第一表面的基板。 平行的，细长的复合导线（310）的栅格或阵列设置在第一表面（307）上，并且每个相邻的导线在小于入射光的波长的格栅周期上间隔开。 每个导线包括交替的细长金属线（330a-i）线和细长电介质层（350a-i）的线内子结构（315）。
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公开(公告)号：US06665119B1
公开(公告)日：2003-12-16
申请号：US10271197
申请日：2002-10-15
IPC分类号： G02B2728
CPC分类号： G02B5/3058 , G02B27/28 , H01Q15/24
摘要： A wire grid polarizer (300) for polarizing an incident light beam (130) comprises a substrate having a first surface. A grid or array of parallel, elongated, composite wires (310) is disposed on the first surface (307), and each of the adjacent wires are spaced apart on a grid period less than a wavelength of incident light. Each of the wires comprises an intra-wire substructure (315) of alternating elongated metal (330a-i) wires and elongated dielectric layers (350a-i).
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公开(公告)号：US06532111B2
公开(公告)日：2003-03-11
申请号：US09799281
申请日：2001-03-05
IPC分类号： G02B2728
CPC分类号： G02B5/3058 , H01Q15/24
摘要： A wire grid polarizer (300) for polarizing an incident light beam (130) comprises a substrate having a first surface. A grid or array of parallel, elongated, composite wires (310) is disposed on the first surface (307), and each of the adjacent wires are spaced apart on a grid period less than a wavelength of incident light. Each of the wires comprises an intra-wire substructure (315) of alternating elongated metal (330a-i) wires and elongated dielectric layers (350a-i).
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公开(公告)号：US06590695B1
公开(公告)日：2003-07-08
申请号：US10084716
申请日：2002-02-26
申请人： Andrew F. Kurtz , Sujatha Ramanujan
发明人： Andrew F. Kurtz , Sujatha Ramanujan
IPC分类号： G02B2600
CPC分类号： G02B5/3058 , G02B26/0841
摘要： A micro-mechanical spatial light modulator for modulating a polarization state of an incident beam (20) comprises a plurality of rotatable elements. Each of the rotatable elements (170) comprises a plurality of structures (300). The structures are spaced apart at sub-wavelength distances relative to the wavelength of the incident beam (20). Each of the plurality of structures (300) exhibits an interaction with the polarization state of the incident beam. An actuator is coupled to each of the rotatable elements. The actuator is capable of controllably positioning the rotatable element to any two positions, and each of the positions has a corresponding polarization state. A substrate (110) supports each plurality of rotatable elements and houses each actuator.
摘要翻译： 用于调制入射光束（20）的偏振状态的微机械空间光调制器包括多个可旋转元件。 每个可旋转元件（170）包括多个结构（300）。 结构相对于入射光束（20）的波长在亚波长距离处间隔开。 多个结构（300）中的每一个表现出与入射光束的偏振状态的相互作用。 致动器联接到每个可旋转元件。 致动器能够可控地将可旋转元件定位到任何两个位置，并且每个位置具有相应的偏振状态。 基板（110）支撑每个多个可旋转元件并容纳每个致动器。
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公开(公告)号：US06577429B1
公开(公告)日：2003-06-10
申请号：US10050003
申请日：2002-01-15
IPC分类号： G02F101
CPC分类号： H04N9/3132 , G02B27/48
摘要： A display apparatus includes a laser light source for emitting a light beam having a coherence length; a beam expander for expanding the light beam; a spatial light modulator; beam shaping optics for shaping the expanded laser beam to provide uniform illumination of the spatial light modulator, the beam shaping optics including a fly's eye integrator having an array of lenslets; a diffuser located in the light beam between the laser light source and the beam shaping optics; an electrically controllable de-speckling modulator for modifying the temporal and spatial phase of the light beam; and a projection lens for producing an image of the spatial light modulator on a distant screen.
摘要翻译： 显示装置包括用于发射具有相干长度的光束的激光光源; 用于扩展光束的光束扩展器; 空间光调制器; 光束整形光学器件，用于使扩展的激光束成形以提供空间光调制器的均匀照明，所述光束整形光学器件包括具有透镜阵列的蝇眼积分器; 位于激光光源和光束整形光学器件之间的光束中的扩散器; 用于修改光束的时间和空间相位的电可控去斑调制器; 以及用于在遥控屏幕上产生空间光调制器的图像的投影透镜。
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公开(公告)号：US06169565A
公开(公告)日：2001-01-02
申请号：US09283272
申请日：1999-03-31
申请人： Sujatha Ramanujan , Andrew F. Kurtz
发明人： Sujatha Ramanujan , Andrew F. Kurtz
IPC分类号： B41J245
摘要： A laser printer utilizes a total internal reflection spatial light modulator that is optimized to work with a partially coherent laser source. The laser source is a laser diode array having a plurality of multi-mode emitters. The spatial light modulator diffracts light from said laser source according to an applied electric field. A spatial filter having a slit passes designated diffracted light which corresponds to an applied electric field and the light is ultimately imaged onto an image plane by way of an imaging lens.
摘要翻译： 激光打印机利用全内反射空间光调制器，其被优化以与部分相干的激光源一起工作。 激光源是具有多个多模式发射器的激光二极管阵列。 空间光调制器根据施加的电场衍射来自所述激光源的光。 具有狭缝的空间滤光器通过与施加的电场相对应的指定的衍射光，并且光最终通过成像透镜成像到图像平面上。
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公开(公告)号：US6084626A
公开(公告)日：2000-07-04
申请号：US69344
申请日：1998-04-29
CPC分类号： G02F1/292 , B41J2/465 , G02F2201/307 , G02F2203/12
摘要： A grating modulator array (40) is comprised of a plurality of modulator sites (41). Each modulator site (41) is comprised of a plurality of first poled regions (50) and a plurality of second poled regions (51) alternating with said first poled regions. A first electrode (48a) is attached to a first end of each of the modulator sites and a second electrode (48b) is attached to a second end of each of the modulator sites and each of the electrode pairs establishes a field in the poled regions of the modulator sites which causes a phase shift in polarized light incident on the modulator.
摘要翻译： 光栅调制器阵列（40）由多个调制器位置（41）组成。 每个调制器位置（41）由多个第一极化区域（50）和与所述第一极化区域交替的多个第二极化区域（51）组成。 第一电极（48a）附接到每个调制器位点的第一端，并且第二电极（48b）附接到每个调制器位点的第二端，并且每个电极对在极化区域中建立场 的调制器位置，其引起入射到调制器上的偏振光的相移。
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公开(公告)号：US06791739B2
公开(公告)日：2004-09-14
申请号：US09924619
申请日：2001-08-08
申请人： Sujatha Ramanujan , Andrew F. Kurtz
发明人： Sujatha Ramanujan , Andrew F. Kurtz
IPC分类号： G02F101
摘要： A method of reducing the appearance of speckle resulting from a coherent light beam, includes the steps of: providing an electro-optic device having, an electro-optic substrate, an electrode array arranged on the surface of the electro-optic substrate, at least one electrode located on the opposite surface of the electro-optic substrate, and means for applying voltage to the electrodes to generate a variation in a refractive index profile within the substrate; and directing the light beam through the electro-optic device while applying voltage to the device, whereby the temporal and spatial phase of a light beam passing through the substrate is altered, thereby reducing the appearance of speckle.
摘要翻译： 减少由相干光束产生的散斑外观的方法包括以下步骤：提供电光装置，其具有电光基板，布置在电光基板的表面上的电极阵列，至少 位于电光基板的相对表面上的一个电极和用于向电极施加电压以产生基板内的折射率分布变化的装置; 并且在向该装置施加电压的同时引导光束通过电光装置，由此改变穿过基板的光束的时空相位，从而减少斑点的外观。
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公开(公告)号：US06909473B2
公开(公告)日：2005-06-21
申请号：US10040663
申请日：2002-01-07
申请人： Xiang-Dong Mi , Andrew F. Kurtz , David Kessler
发明人： Xiang-Dong Mi , Andrew F. Kurtz , David Kessler
CPC分类号： H04N9/3167 , G02B5/3016 , G02B5/3058 , G02B27/18 , G02B27/283 , G02F1/133536 , G02F1/133634 , G02F2001/133548 , G02F2001/133638 , G02F2203/02 , H04N9/3108 , H04N9/3191
摘要： A projection display apparatus (10) uses a modulation optical system (200) that includes a liquid crystal device (210) in combination with a wire grid polarization beamsplitter (240), a wire grid polarization analyzer (270) and a projection lens (285) to form an image. In order to achieve high contrast and maintain high brightness levels, a compensator (260) is provided for minimizing leakage light for pixels in the black (OFF) state. A number of configurations are possible, such as with the compensator (260) disposed in the optical path between the liquid crystal device (210) and the wire grid polarization beamsplitter (240) and with a secondary compensator (265) disposed between wire grid polarization analyzer (270) and the wire grid polarization beamsplitter (240).
摘要翻译： 投影显示装置（10）使用包括液晶装置（210）的调制光学系统（200）和线栅偏振分束器（240），线栅偏振分析器（270）和投影透镜（285） ）形成图像。 为了实现高对比度并保持高亮度水平，提供补偿器（260）以最小化黑色（OFF）状态下的像素的泄漏光。 多个配置是可能的，例如，补偿器（260）设置在液晶装置（210）和线栅偏振分束器（240）之间的光路中，并且辅助补偿器（265）设置在线栅极化 分析器（270）和线栅偏振分束器（240）。
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公开(公告)号：US06714350B2
公开(公告)日：2004-03-30
申请号：US09977544
申请日：2001-10-15
IPC分类号： G02B530
CPC分类号： G02B5/3058 , G02F1/133528 , Y10S359/90
摘要： A wire grid polarizer (100) for polarizing an incident light beam (130), comprising a substrate (505) having a first surface (410) and a second surface (510); and a first array of parallel, elongated wires disposed on the first surface (410). Each of the wires are spaced apart at a grid period less than a wavelength of the incident light; and a second array of parallel, elongated wires disposed on said second surface (420) where the second array of wires are oriented parallel to the first array of wires.
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