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    Panoramic video system with real-time distortion-free imaging
    1.
    发明申请
    Panoramic video system with real-time distortion-free imaging 有权
    具有实时无失真成像的全景视频系统

    公开(公告)号：US20060023105A1

    公开(公告)日：2006-02-02

    申请号：US10758829

    申请日：2004-01-15

    申请人： Andrew Kostrzewski ,  Sookwang Ro ,  Il'ya Agurok ,  Mark Bennahmias

    发明人： Andrew Kostrzewski ,  Sookwang Ro ,  Il'ya Agurok ,  Mark Bennahmias

    IPC分类号： H04N5/225

    CPC分类号： G06T5/006 ,  G06T3/0018 ,  H04N5/23238

    摘要： A panoramic annular lens system (PAL), a unitary video camera and a PC-based software system that unwraps a 360° video image into a seamless, distortion free horizontal image image in real time. The PAL system of the preferred embodiment has a 360° horizontal field of view and a 90° vertical field of view in a 40 mm diameter compact package. The invention is not limited to any particular type of lens system. In fact, there are numerous lens systems for providing a 360° panoramic view. The video camera may be a CCD or CMOS based device having a pixel resolution of either 1280×1024 (high resolution) or 720×480 (NTSC). The unwrapping system is a radiometric ray tracing program carried out using a computer's graphics card capabilities to produce highly efficient regional transformation while minimizing software overhead. The result is real time, high resolution 30 fps conversion from a spherical distorted image to a flat panoramic image in Cartesian coordinates.

    摘要翻译： 全景环形透镜系统（PAL），单一摄像机和基于PC的软件系统，可将360°视频图像实时展开为无缝，无失真的水平图像图像。 优选实施例的PAL系统在40mm直径的紧凑型封装中具有360°的水平视场和90°的垂直视场。 本发明不限于任何特定类型的透镜系统。 事实上，有许多透镜系统可以提供360度的全景视野。 摄像机可以是具有1280×1024（高分辨率）或720×480（NTSC）的像素分辨率的CCD或CMOS设备。 展开系统是使用计算机的显卡功能进行的辐射光线跟踪程序，以便最大限度地减少软件开销，从而产生高效的区域转换。 结果是实时，高分辨率30 fps从球面失真图像转换为笛卡尔坐标中的平面全景图像。

    Panoramic video system with real-time distortion-free imaging
    2.
    发明授权
    Panoramic video system with real-time distortion-free imaging 有权
    具有实时无失真成像的全景视频系统

    公开(公告)号：US07336299B2

    公开(公告)日：2008-02-26

    申请号：US10758829

    申请日：2004-01-15

    申请人： Andrew A Kostrzewski ,  Sookwang Ro ,  Il'ya Agurok ,  Mark Bennahmias

    发明人： Andrew A Kostrzewski ,  Sookwang Ro ,  Il'ya Agurok ,  Mark Bennahmias

    IPC分类号： H04N5/225

    CPC分类号： G06T5/006 ,  G06T3/0018 ,  H04N5/23238

    摘要： A panoramic annular lens system (PAL), a unitary video camera and a PC-based software system that unwraps a 360° video image into a seamless, distortion free horizontal image image in real time. The PAL system of the preferred embodiment has a 360° horizontal field of view and a 90° vertical field of view in a 40 mm diameter compact package. The invention is not limited to any particular type of lens system. In fact, there are numerous lens systems for providing a 360° panoramic view. The video camera may be a CCD or CMOS based device having a pixel resolution of either 1280×1024 (high resolution) or 720×480 (NTSC). The unwrapping system is a radiometric ray tracing program carried out using a computer's graphics card capabilities to produce highly efficient regional transformation while minimizing software overhead. The result is real time, high resolution 30 fps conversion from a spherical distorted image to a flat panoramic image in Cartesian coordinates.

    摘要翻译： 全景环形透镜系统（PAL），单一摄像机和基于PC的软件系统，可将360°视频图像实时展开为无缝，无失真的水平图像图像。 优选实施例的PAL系统在40mm直径的紧凑型封装中具有360°的水平视场和90°的垂直视场。 本发明不限于任何特定类型的透镜系统。 事实上，有许多透镜系统可以提供360度的全景视野。 摄像机可以是具有1280×1024（高分辨率）或720×480（NTSC）的像素分辨率的CCD或CMOS设备。 展开系统是使用计算机的显卡功能进行的辐射光线跟踪程序，以便最大限度地减少软件开销，从而产生高效的区域转换。 结果是实时，高分辨率30 fps从球面失真图像转换为笛卡尔坐标中的平面全景图像。

    PATTERNED LIGHT DISTRIBUTION DEVICE WEDGE (PLDW)
    3.
    发明申请
    PATTERNED LIGHT DISTRIBUTION DEVICE WEDGE (PLDW) 审中-公开
    图案光分布设备（PLDW）

    公开(公告)号：US20150029749A1

    公开(公告)日：2015-01-29

    申请号：US13949855

    申请日：2013-07-24

    申请人： JEFFREY Alan LAINE ,  Mark Bennahmias

    发明人： JEFFREY Alan LAINE ,  Mark Bennahmias

    IPC分类号： F21V8/00

    CPC分类号： G02B6/0036 ,  G02B6/0041 ,  G02B6/0043 ,  G02B6/0046

    摘要： A backlight apparatus comprised of a light pipe with one or more light input ends, a top surface, a bottom surface, opposing side, a non imaging optic collimator and scatter inducing elements. The non imaging optic collimator causes the light rays entering into the light pipe to be directed towards the far end relative to the light input end in a specified angular distribution. Pluralities of scatter induced elements (SIE) are introduced in the body of the light pipe between the applicable light input end and the corresponding far end. Individual scatter induced elements may be formed in any geometry, and may be grouped or separated such that there exists a variation of SIE each individually or as grouped, possessing discrete geometries. The light pipe may also vary in the quantity of said SIE at any specified location of the device, and each SIE will have an index of refraction either greater or lesser relative to the index of refraction of the light pipe at the location surrounding the individual scatter induced element. The said SIE cause the light rays to exit the top surface of the device at a specific angular profile and at a specific angular direction with reference to the plane of the light pipe.

    摘要翻译： 一种背光装置，包括具有一个或多个光输入端的光管，顶表面，底表面，相对侧，非成像光学准直器和散射诱导元件。 非成像光学准直仪使得入射到光管中的光线以指定的角度分布相对于光输入端指向远端。 多个散射感应元件（SIE）被引入光管的体内，在适用的光输入端和相应的远端之间。 单独的散射感应元件可以以任何几何形状形成，并且可以被分组或分离，使得存在单独或分组的SIE变体，具有分立的几何形状。 光管也可以在装置的任何指定位置处的所述SIE的量变化，并且每个SIE将具有相对于在各个散射周围的位置处的光管的折射率更大或更小的折射率 诱发元素。 所述SIE使得光线以相对于光管的平面在特定的角度轮廓和特定的角度方向离开设备的顶表面。

    Backlighting system for displays
    4.
    发明授权
    Backlighting system for displays 失效
    显示器背光系统

    公开(公告)号：US06733147B2

    公开(公告)日：2004-05-11

    申请号：US10206459

    申请日：2002-07-27

    申请人： San Zhuang Wang ,  Gajendra Savant ,  Jeffrey A. Laine ,  Mark Bennahmias ,  Rick L. Shie

    发明人： San Zhuang Wang ,  Gajendra Savant ,  Jeffrey A. Laine ,  Mark Bennahmias ,  Rick L. Shie

    IPC分类号： G01D1128

    CPC分类号： G02B6/0016 ,  B29C33/3892 ,  B29C39/028 ,  B29C41/085 ,  B29C41/12 ,  B29D11/00 ,  B29K2021/00 ,  B29L2023/00 ,  B29L2031/757 ,  G02B5/0215 ,  G02B5/0252 ,  G02B5/0278 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0051 ,  G02B6/0061 ,  G02B6/0065 ,  G02F1/133615

    摘要： An LED-based backlighting system that provides excellent brightness and homogeneity suitable for high performance multi-color and high resolution portable displays such as for PDAs and cell phones. Several different but similar embodiments are disclosed. Some are suitable for use with multiple LEDs and some for use with a single LED. In a first such embodiment, multiple LEDs are located adjacent the input edge of a light pipe. The input edge contains fixed pitch grooves to propagate the LED light in a direction that is substantially angled toward the bottom surface of the light pipe along its entire area. The light pipe bottom surface also has grooves for altering the direction of the LED light toward the upper surface of the light pipe where it exits the light pipe toward a viewer. The exterior of the exit surface of the light pipe receives a light shaping diffuser (LSD) and an optical film. The diffuser acts to diffuse and distribute the exiting light at selected horizontal and vertical angles and the optical film shapes. In a second embodiment, a second LSD is positioned above the optical film. In a third embodiment, an LSD strip having a foreshortened LSD is positioned below the light pipe adjacent the input edge to better reduce hot spots near the LEDs.

    摘要翻译： 一种基于LED的背光系统，提供优异的亮度和均匀性，适用于高性能多色和高分辨率便携式显示器，如PDA和手机。 公开了几个不同但类似的实施例。 一些适用于多个LED，一些适用于单个LED。 在第一个这样的实施例中，多个LED位于光管的输入边缘附近。 输入边缘包含固定的间距沟槽，以沿着其整个区域沿着基本上朝向光管的底表面成角度的方向传播LED光。 光管底表面还具有凹槽，用于将LED光的方向改变为朝向观察者离开光管的光管的上表面。 光管的出射表面的外部接收光成形漫射器（LSD）和光学膜。 扩散器用于以所选择的水平和垂直角度以及光学膜形状扩散和分布出射光。 在第二实施例中，第二LSD位于光学膜上方。 在第三实施例中，具有缩短的LSD的LSD条带位于邻近输入边缘的光管下方，以更好地减少LED附近的热点。