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40 条记录 (耗时 0.012 秒)

    Display using light guide and refractive index control
    2.
    发明授权
    Display using light guide and refractive index control 有权
    显示使用光导和折射率控制

    公开(公告)号：US07808579B2

    公开(公告)日：2010-10-05

    申请号：US12511693

    申请日：2009-07-29

    申请人： Achintya K. Bhowmik ,  Ralph M. Mesmer

    发明人： Achintya K. Bhowmik ,  Ralph M. Mesmer

    IPC分类号： G02F1/1335

    CPC分类号： G02F1/195 ,  G02F1/13 ,  G02F1/133526 ,  G02F1/133603

    摘要： Some embodiments provide a device including a first material associated with a controllable refractive index, a second material associated with a first refractive index, and a third material disposed between the first material and the second material, the third material being substantially transparent to a plurality of visible light wavelengths and being associated with a second refractive index greater than the first refractive index. Devices according to some embodiments may be employed as a display in a laptop computer, a desktop computer, a personal digital assistant, a minicomputer, a projection television, a front projector, etc.

    摘要翻译： 一些实施例提供了包括与可控折射率相关联的第一材料，与第一折射率相关联的第二材料和设置在第一材料和第二材料之间的第三材料的装置，第三材料对多个 可见光波长并且与大于第一折射率的第二折射率相关联。 根据一些实施例的设备可以用作膝上型计算机，台式计算机，个人数字助理，小型计算机，投影电视，前投影仪等中的显示器。

    Restoring optical pulses
    3.
    发明授权
    Restoring optical pulses 失效

    公开(公告)号：US07031580B2

    公开(公告)日：2006-04-18

    申请号：US10370432

    申请日：2003-02-20

    申请人： Achintya K. Bhowmik

    发明人： Achintya K. Bhowmik

    IPC分类号： G02B6/00

    CPC分类号： H04B10/299 ,  G02F1/225 ,  G02F1/3511 ,  H04B10/2507

    摘要： In one embodiment of the present invention, a method includes introducing an optical signal into a first arm and a second arm of an optical device; self-phase modulating the optical signal propagating in the first arm; and outputting a high intensity portion of the optical signal spatially separated from a low intensity portion of the optical signal. In such manner, optical signals input into the optical device may be restored via cleaning and shaping.

    Retardation compensator for a liquid crystal-on-silicon imager
    9.
    发明授权
    Retardation compensator for a liquid crystal-on-silicon imager 有权
    液晶硅片成像仪的延迟补偿器

    公开(公告)号：US07327423B2

    公开(公告)日：2008-02-05

    申请号：US10961095

    申请日：2004-10-08

    申请人： Achintya K. Bhowmik

    发明人： Achintya K. Bhowmik

    IPC分类号： G02F1/1335

    CPC分类号： G02B5/3083 ,  G02F1/13363 ,  G02F1/136277

    摘要： Phase retardation compensation can be achieved in liquid crystal-on-silicon imagers by stress freezing a photoelastic medium. As a result, a simple, one-piece compensator for the residual birefringence of the imagers may be provided in some cases. The stress may be frozen by subjecting a photoelastic material to a desired stress and temperature regime, resulting in a material which exhibits birefringence due to a stress level which is fixed or frozen at the molecular level within the material.

    摘要翻译： 通过应力冷冻光弹介质可以在液晶硅上成像器中实现相位延迟补偿。 结果，在一些情况下可以提供用于成像器的残留双折射的简单的一体式补偿器。 可以通过使光弹性材料经受所需的应力和温度状态来使应力冷冻，导致由于在材料内分子水平固定或冷冻的应力水平而显示出双折射的材料。

    Resolution multiplication technique for projection display systems
    10.
    发明授权
    Resolution multiplication technique for projection display systems 有权
    投影显示系统的分辨率乘法技术

    公开(公告)号：US07325928B2

    公开(公告)日：2008-02-05

    申请号：US11057458

    申请日：2005-02-14

    申请人： Achintya K. Bhowmik ,  Shida Tan ,  Jeff A. Bonnington

    发明人： Achintya K. Bhowmik ,  Shida Tan ,  Jeff A. Bonnington

    IPC分类号： G03B21/00 ,  G03B21/26

    CPC分类号： G03B37/04 ,  G09G3/002 ,  G09G3/007

    摘要： A projection display may be formed by an imager which creates a portion of each of a plurality of spatially separated segments which together make up an overall image. The imager may produce one of those segments at any given instant of time. That segment is then replicated to fill each of the segments that form the overall image area. However, the segments that correspond to locations where that image portion should not exist are filtered out so that only one image portion for the correct segment is displayed. Each of the other segments may be produced in a time sequential fashion so that sequentially the segments fill the entire image. Thus, using this technique, substantially higher resolution may be achieved from a projection display system using fewer number of pixels in the microdisplay, in some embodiments.

    摘要翻译： 投影显示可以由成像器形成，其创建多个空间分离的片段中的每一个的一部分，这些片段一起构成整体图像。 成像器可以在任何给定的时刻产生这些片段中的一个。 然后复制该段以填充形成整个图像区域的每个段。 然而，对应于该图像部分不应存在的位置的段被过滤掉，使得仅显示用于正确段的仅一个图像部分。 可以以时间顺序的方式产生每个其它段，使得顺序地，段填充整个图像。 因此，在一些实施例中，使用该技术，可以从使用较少数量的像素的投影显示系统实现更高的分辨率。