公开(公告)号：US06398364B1

公开(公告)日：2002-06-04

申请号：US09414751

申请日：1999-10-06

申请人： Brett J. Bryars

发明人： Brett J. Bryars

IPC分类号： G03B2100

CPC分类号： G02B27/1086 ,  G02B27/126 ,  G02B27/149 ,  H04N9/3167

摘要： An image projection display system is provided which utilizes an off-axis illumination configuration. A beam splitter is configured to direct a first light beam along a first optical path toward reflective imaging devices adapted to direct a second light beam along a second optical path to produce an image to be projected. Polarizing devices are interposed between the beam splitter and each imaging device, with the polarizing devices configured to allow passage of a first polarized component of the light beam while blocking passage of a second polarized component of the light beam. The display system provides a high contrast ratio and degree of brightness which significantly improves the final image quality projected to a display screen.

摘要翻译： 提供了利用离轴照明配置的图像投影显示系统。 分束器被配置为将第一光束沿着第一光学路径引导到适于沿第二光路引导第二光束的反射成像装置，以产生待投影的图像。 偏振装置插入在分束器和每个成像装置之间，其中偏振装置被配置为允许阻挡光束的第一偏振分量的通过，同时阻挡光束的第二偏振分量的通过。 显示系统提供高对比度和亮度，这显着地提高投影到显示屏幕的最终图像质量。

公开(公告)号：US20140131578A1

公开(公告)日：2014-05-15

申请号：US14079280

申请日：2013-11-13

申请人： Curtis R. Hruska ,  Charles A. Hulse ,  Brett J. Bryars ,  Marc K. Von Gunten ,  Christopher G. Pederson ,  Nada A. O'Brien ,  Jerry Zieba

发明人： Curtis R. Hruska ,  Charles A. Hulse ,  Brett J. Bryars ,  Marc K. Von Gunten ,  Christopher G. Pederson ,  Nada A. O'Brien ,  Jerry Zieba

IPC分类号： G01N21/35

CPC分类号： G01N21/35 ,  G01J3/0205 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/26 ,  G01J3/42 ,  G01J5/08 ,  G01J2003/1234 ,  G01N21/359 ,  G01N2201/0221 ,  G01N2201/061 ,  G01N2201/068

摘要： A portable spectrometer device includes an illumination source for directing at a sample, and a tapered light pipe (TLP) for capturing light interacting with the sample at a first focal ratio and for delivering the light at a second focal ratio lower than the first focal ratio. A linearly variable filter (LVF) separates the captured light into a spectrum of constituent wavelength signals; and a detector array, including a plurality of pixels, each of the plurality of pixels disposed to receive at least a portion of a plurality of the constituent wavelength signals provides a power reading for each constituent wavelength. Preferably, the TLP is lensed at one end, and recessed in a protective boot with stepped inner walls. The gap between the TLP and LVF is minimized to further enhance resolution and robustness.

摘要翻译： 便携式光谱仪装置包括用于引导样品的照明源和用于以第一焦距比捕获与样品相互作用的光的锥形光管（TLP），并且以比第一焦距比低的第二焦距传送光 。 线性可变滤波器（LVF）将捕获的光分离成波长信号的频谱; 以及包括多个像素的检测器阵列，所述多个像素中的每一个被设置为接收多个所述组成波长信号的至少一部分，为每个构成波长提供功率读数。 优选地，TLP在一端镜片，并且凹陷在具有阶梯状内壁的保护靴中。 TLP和LVF之间的差距被最小化以进一步提高分辨率和鲁棒性。

公开(公告)号：US08237876B2

公开(公告)日：2012-08-07

申请号：US11419872

申请日：2006-05-23

申请人： Kim Leong Tan ,  Brett J. Bryars ,  Karen Denise Hendrix ,  David M. Shemo ,  Thomas Mayer

发明人： Kim Leong Tan ,  Brett J. Bryars ,  Karen Denise Hendrix ,  David M. Shemo ,  Thomas Mayer

IPC分类号： G02F1/1335

CPC分类号： H04N9/3167 ,  G02B5/3083 ,  G02F1/133632 ,  G02F1/133634 ,  G02F1/136277 ,  G02F1/1393 ,  G02F2203/02 ,  H04N9/3105

摘要： A C-plate compensator is disclosed for compensating the residual A-plate and C-plate retardance of a reflective liquid crystal on silicon (LCoS) display or a transmissive liquid crystal (LC) display in a projection display system. The C-plate incorporates a form-birefringent coating, whose retardance magnitude can be adjusted by tilting with respect to the display panel (X-Y) plane. The tilted plate is rotated about the Z-axis by a prescribed amount from the slow axis of the display panel. Criteria are described for choosing the tilt and rotation angles such that the contrast of the display system produced by the compensated panel is optimized.

摘要翻译： 公开了用于补偿投影显示系统中的硅（LCoS）显示器或透射型液晶（LC）显示器上的反射液晶的残留A板和C板延迟的C板补偿器。 C板包含双折射形式的涂层，其延迟大小可以通过相对于显示面板（X-Y）平面倾斜来调节。 倾斜板从显示面板的慢轴绕Z轴旋转规定量。 描述了用于选择倾斜和旋转角度的标准，使得由补偿面板产生的显示系统的对比度被优化。

公开(公告)号：US6144498A

公开(公告)日：2000-11-07

申请号：US321363

申请日：1999-05-27

申请人： Brett J. Bryars ,  Blain J. Hendrix

发明人： Brett J. Bryars ,  Blain J. Hendrix

IPC分类号： G02B5/04 ,  G02B27/10 ,  G02B27/14 ,  H04N9/097 ,  H04N9/31

CPC分类号： G02B27/145 ,  G02B27/1013 ,  G02B27/1073 ,  G02B5/04 ,  H04N9/097

摘要： A color separation device useful in information display systems is assembled from three prisms in an arrangement that provides for air equivalent thickness adjustment for each color. The air equivalent thickness adjustment provides for the correction of deviations in any of the three prisms, as well as providing a method to correct for the chromatic aberration arising from other optical elements in the information display system. The color separation device improves image quality and provides opportunities to lower the display system cost by using low tolerance components and/or plastic optical components normally having a high chromatic aberration.

摘要翻译： 用于信息显示系统的颜色分离装置由三个棱镜组装，这些装置为每种颜色提供空气等效厚度调整。 空气等效厚度调整提供对三个棱镜中的任何一个的偏差的校正，以及提供一种校正由信息显示系统中的其它光学元件引起的色像差的方法。 分色装置通过使用通常具有高色差的低公差组件和/或塑料光学组件来提高图像质量并提供降低显示系统成本的机会。

公开(公告)号：US06340230B1

公开(公告)日：2002-01-22

申请号：US09523370

申请日：2000-03-10

申请人： Brett J. Bryars ,  Michael R. Greenberg ,  Sean Sullivan

发明人： Brett J. Bryars ,  Michael R. Greenberg ,  Sean Sullivan

IPC分类号： G03B2100

CPC分类号： H04N9/3102 ,  G02B27/283 ,  H04N5/7441

摘要： Methods and apparatus for enhancing the performance of a reflective liquid crystal display system. The high-contrast color splitting prism system utilizes a “double-passed” prism assembly. Polarized light enters the prism assembly, is color-split and emitted as separate colors to spatial light modulators which reflect each color in accordance with a desired image. The reflective light is passed, once again, through the prism assembly where the separate colors converge and propagate to a projection lens for display of the image on a screen. A waveplate retarder is positioned between the liquid crystal display and the polarizing element. The waveplate retarder is tilted with respect to the optical axis to eliminate the deleterious effects of the Fresnel reflections at the interfaces of the waveplate retarder.

摘要翻译： 提高反射型液晶显示系统性能的方法和装置。 高对比度分色棱镜系统采用“双通”棱镜组件。 偏振光进入棱镜组件，被分色并作为分开的颜色发射到根据期望的图像反映每种颜色的空间光调制器。 反射光再次通过棱镜组件，其中分离的颜色会聚并传播到投影透镜，以在屏幕上显示图像。 波片延迟器位于液晶显示器和偏振元件之间。 波片延迟器相对于光轴倾斜，以消除波片延迟器界面处菲涅耳反射的有害影响。