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    • 1. 发明授权
    • Method and apparatus for distortion correction in optical projectors
    • 光学投影机中畸变校正的方法和装置
    • US5355188A
    • 1994-10-11
    • US119437
    • 1993-09-09
    • Jonathan R. BilesGary B. KingsleyArlie R. Conner
    • Jonathan R. BilesGary B. KingsleyArlie R. Conner
    • G03B21/132H04N5/74H04N9/31H04N17/00G03B21/14
    • H04N9/3185G03B21/132
    • A projector (100) including an liquid crystal display image source (120), a field lens (126), and a projection lens (128) projects a full-color image by projecting and converging images of multiple liquid crystal displays ("LCDs"). The image is properly positioned without keystoning by tilting the field lens and offsetting the center of the LCD image source from the optical axis (142) of the projection lens. Trapezoidal error is eliminated by maintaining the optical center (156) of the field lens on the optical axis of the projection lens. During focusing, a mounting apparatus (164) adjusts the offset (154) between the center of the LCD and the optical axis of the projection lens for proper convergence of the images and maintains the optical center of the field lens on the optical axis of the projection lens.
    • 包括液晶显示图像源(120),场透镜(126)和投影透镜(128)的投影仪(100)通过投影和会聚多个液晶显示器(“LCD”)的图像来投影全色图像, )。 通过倾斜场透镜并将LCD图像源的中心偏离投影透镜的光轴(142),图像被正确地定位而没有梯形失真。 通过将场透镜的光学中心(156)保持在投影透镜的光轴上来消除梯形误差。 在聚焦期间,安装装置(164)调整LCD的中心与投影透镜的光轴之间的偏移(154),以适当地收敛图像,并将场透镜的光学中心保持在 投影镜头
    • 2. 发明授权
    • Moisture-insensitive holograms and method for making the same
    • 水分不敏感全息图及其制作方法
    • US5331444A
    • 1994-07-19
    • US703248
    • 1991-05-20
    • Jonathan R. Biles
    • Jonathan R. Biles
    • G03H1/02G03H1/04
    • G03H1/0252G03H1/0272G03H2001/2231G03H2250/33G03H2250/37G03H2250/39
    • Reflection holograms to be viewed through the front side of a transparent and preferably flexible substrate, and which are insensitive to moisture in liquid and in vapor form, are produced by attaching a layer of holographic recording material to the back side of a transparent substrate, attaching a layer of moisture barrier resin to the back side of the recording material in sufficient thickness to render the hologram insensitive to moisture, and attaching a layer of opaque material to the back side of the moisture barrier layer. Further protection against moisture may be achieved by attaching a solvent deposited layer of transparent moisture barrier resin to the front side of the substrate and/or attaching a layer of moisture barrier sheet to the back side of the opaque layer.
    • 通过将透明和优选柔性基底的前侧观察到并且对液体和蒸气形式对湿气不敏感的反射全息图通过将全息记录材料层附着到透明基底的背面而附着 一层防潮树脂到足够厚度的记录材料的背面,以使全息图对湿气不敏感,并且将不透明材料层附着到防潮层的背面。 可以通过将透明防潮树脂的溶剂沉积层附着到基板的前侧和/或将不透明层的背面附着一层防潮片来实现进一步的防潮。
    • 5. 发明授权
    • Notch filters with cholesteric polarizers with birefringent film and
linear polarizer
    • 具有双折射膜和线偏振器的胆甾醇偏振器的陷波滤波器
    • US5548422A
    • 1996-08-20
    • US84874
    • 1993-06-28
    • Arlie ConnerJonathan R. BilesTerry J. SchefferGary B. Kingsley
    • Arlie ConnerJonathan R. BilesTerry J. SchefferGary B. Kingsley
    • G02B5/30G02F1/1335G02F1/13357G02F1/13363G02F1/1347
    • G02F1/133621G02B5/3016G02F1/133536G02F1/13473G02F1/13363G02F2001/133638
    • An optical notch filter component in a color LCD display comprises an electronically controllable variable retarder interposed between circularly polarizing elements. Entering light in a particular spectral region is circularly polarized by a first of the circularly polarizing elements, and selectively retarded by zero or a half wavelength by the retarder so as to controllably yield right or left handed circular polarization. The second circular polarizer transmits only one of the circular polarizations of the light. By controlling the circular polarization of the light with the retarder, the light is either transmitted or attenuated. More uniform stopband attenuation is provided when the optical notch filter component comprises oppositely handed circular polarizing elements and a variable retarder which applies zero retardation in one of its states. A direct view display system substantially without parallax effects is formed from a stacked assembly of the notch filter components with thin substrate construction. Higher contrast is provided by doubly analyzing each color band.
    • 彩色LCD显示器中的光学陷波滤波器组件包括插入在圆偏振元件之间的电子可控可变延迟器。 进入特定光谱区域的光被第一个圆偏振元件圆偏振,并且被延迟器选择性地延迟零或一半的波长,从而可控地产生右旋或左旋圆偏振。 第二圆偏振器仅透射光的圆偏振中的一种。 通过用延迟器控制光的圆偏振,光被传输或衰减。 当光学陷波滤波器组件包括相反方向的圆形偏振元件和在其状态之一中施加零延迟的可变延迟器时,提供更均匀的阻带衰减。 基本上没有视差效应的直视图显示系统由具有薄衬底结构的陷波滤波器组件的堆叠组件形成。 通过双重分析每个色带提供更高的对比度。
    • 6. 发明授权
    • Dual wavelength polarization selective holographic optical element
    • 双波长偏振选择全息光学元件
    • US4993789A
    • 1991-02-19
    • US244923
    • 1988-09-15
    • Jonathan R. BilesHo W. Lo
    • Jonathan R. BilesHo W. Lo
    • G02B5/32G02B27/28
    • G02B27/283G02B5/32
    • A polarization-selective holographic element having first and second holographic layers, each holographic layer including holograms comprising a plurality of fringes which are recorded with light having a first wavelength .lambda..sub.1. The holographic optical element transmits a first component of light having a second wavelength .lambda..sub.2 without diffraction and diffracts a second component of the light having the second wavelength by a selected angle. The holograms have a high diffraction efficiency and are recorded with beams making angles .sigma..sub.1 and .sigma..sub.2 with a normal to the surface of the holographic layers, where .vertline..theta..sub.2 -.theta..sub.1 .vertline.=.vertline..sigma..sub.2 -.sigma..sub.1 .vertline.=2.alpha., .lambda..sub.2 /(sin.theta..sub.1 +sin.theta..sub.2)=.lambda..sub.1 /(sin.theta..sub.1 +sin.theta..sub.2), and .theta..sub.1 and .theta..sub.2 are the incident and diffracted angles of the second component of the light having the second wavelength.
    • 一种具有第一和第二全息层的偏振选择性全息元件,每个全息图层包括全息图,该全息图包括以第一波长λ1的光记录的多个条纹。全息光学元件透射具有第二波长λ的光的第一分量 2,而不衍射,并将具有第二波长的光的第二分量衍射成选定的角度。 全息图具有高的衍射效率,并用与全息层的表面垂直的光束制作角度σ1和σ2进行记录,其中|θ2θ1 | = | sigma 2-sigma 1 | =2α, λ2 /(sinθ1 +sinθ2)=λ1 /(sinθ1 +sinθ2),θ1和θ2是具有第二波长的光的第二分量的入射角和衍射角。
    • 7. 发明授权
    • Projection illumination system
    • 投影照明系统
    • US5742438A
    • 1998-04-21
    • US307223
    • 1994-09-16
    • Arlie R. ConnerJonathan R. BilesDavid K. Booth
    • Arlie R. ConnerJonathan R. BilesDavid K. Booth
    • G02B3/08G02B13/02
    • G02B3/08G02B13/02
    • A projection system includes a collection lens that minimizes apparent magnification of the light source, so that the resulting system more nearly conforms to a point source idealization. Attendant benefits include improved collimation, a smaller projection lens, and a greater depth of focus. The collection lens is desirably of a "wrap around" configuration to maximize light collection while contributing to reduced source magnification. The opposite side of the collection lens can be provided with a convex lens of Fresnel form. Use of the Fresnel optic moves the principal plane of the collection lens closer to the light source, further minimizing the source's apparent magnification. The projection system additionally includes condensing optics formed with a deliberate asymmetry so as to provide more uniform illumination of a rectangular image plane. The Fresnel surface of the collection lens can be designed to provide this asymmetry.
    • 投影系统包括使光源的表观放大率最小化的收集透镜,使得所得到的系统更接近于点源理想化。 助听器的优点包括改进的准直,较小的投影镜头和更大的焦距。 收集透镜理想地是“缠绕”结构,以最大化光收集,同时有助于减小源倍率。 收集透镜的相对侧可以设置有菲涅耳形状的凸透镜。 使用菲涅耳光学器件将收集透镜的主平面移动到更靠近光源的位置,进一步使源的表观放大率最小化。 投影系统还包括形成有故意不对称的聚光光学元件,以便提供矩形图像平面的更均匀的照明。 收集透镜的菲涅耳表面可以设计成提供这种不对称性。
    • 8. 发明授权
    • Reflection hologram multiple-color filter array formed by sequential
exposure to a light source
    • 反射全息图多色滤光片阵列,通过顺序曝光形成光源
    • US5537232A
    • 1996-07-16
    • US131719
    • 1993-10-05
    • Jonathan R. Biles
    • Jonathan R. Biles
    • G02B5/20G02B5/32G02F1/1335G02F1/13363G03H1/26
    • G02B5/203G02B5/201G02B5/32G02F1/133516G02F1/13363Y10S359/90
    • A multiple-color filter array (94) useful as part of a flat panel display system of either a projection (50) or direct view (70) type is constructed using reflection holography techniques. The filter array includes multiple-color filter elements (110, 114, 116) that reflect wavelengths of light corresponding to colors outside of a color band of interest. Redundant sets of first, second, and third wavelengths selective reflective color filter elements are arranged in stripes to transmit light of the three primary colors red, green, and blue. The three-color filter array is constructed in a single layer (122) of holographic recording material during one sequence of three separate exposures, one for each color filter element. A preferred flat panel display system (200) includes a liquid crystal variable optical retarder of the supertwisted nematic (STN) type. The direct view system includes a spurious light reflection absorber (204), one of whose optical components is selected in association with the residual retardation compensator plate (214) of the preferred liquid crystal variable optical retarder.
    • 使用反射全息技术构建可用作投影(50)或直视(70)类型的平板显示系统的一部分的多色滤光器阵列(94)。 滤光器阵列包括反射对应于感兴趣的色带外的颜色的光的波长的多色滤光器元件(110,114,116)。 冗余的第一,第二和第三波长选择性反射滤色器元件被布置成条纹以透射三原色红色,绿色和蓝色的光。 在三个单独曝光的一个序列期间,三色滤光器阵列被构造在全息记录材料的单层(122)中,每个滤色器元件一个。 优选的平板显示系统(200)包括超扭曲向列(STN)型的液晶可变光学延迟器。 直接观察系统包括寄生光反射吸收器(204),其中的一个光学部件与优选的液晶可变光学延迟器的剩余延迟补偿板(214)相关联地被选择。
    • 9. 发明授权
    • Polarization selective holographic optical element
    • 极化选择性全息光学元件
    • US5013107A
    • 1991-05-07
    • US244955
    • 1988-09-15
    • Jonathan R. Biles
    • Jonathan R. Biles
    • G02B5/32G11B7/135
    • G11B7/1353G02B5/32
    • A polarization-selective holographic element having first and second holographic layers, each holographic layer including holograms comprising a plurality of fringes. The holographic optical element transmits a first component of light without diffraction and diffracts a second component of the light by a selected angle. The holographic optical element diffracts the second component into only one beam. The holographic optical element can be utilized as a beam splitter which is provided with optical power, for use in an optical head, by storing holograms for cylindrical and other powers and for auto-focusing and tracking capabilities.
    • 具有第一和第二全息层的偏振选择性全息元件,每个全息图层包括包括多个边缘的全息图。 全息光学元件透射光的第一分量而不衍射,并将光的第二分量衍射一个选定的角度。 全息光学元件将第二部件衍射成仅一个光束。 全息光学元件可以用作分束器,其被设置有用于光学头的光学功率,通过存储用于圆柱形和其它功率的全息图以及用于自动聚焦和跟踪能力。