Optical manifold
    12.
    发明授权
    Optical manifold 有权
    光学歧管

    公开(公告)号:US07665858B2

    公开(公告)日:2010-02-23

    申请号:US11982480

    申请日:2007-11-02

    IPC分类号: F21V33/00

    摘要: Optical systems are described that have at least one source of a beam of blue light with divergence under 15°. A phosphor emits yellow light when excited by the blue light. A collimator is disposed with the phosphor and forms a yellow beam with divergence under 15°. A dichroic filter is positioned to transmit the beam of blue light to the phosphor and to reflect the beam of yellow light to an exit aperture. In different embodiments, the beams of blue and yellow light are incident upon said filter with central angles of 15°, 22°, and 45°. The filter may reflect all of one polarization and part of the other polarization, and a polarization rotating retroreflector may then be provided to return the unreflected light to the filter.

    摘要翻译: 描述的光学系统具有至少一个蓝光束的源,发散度在15°以下。 当由蓝光激发时,荧光体发射黄光。 准直仪与磷光体一起设置,并形成黄色光束,发散度在15°以下。 二向色滤光器被定位成将蓝光束传输到荧光体并将黄光束反射到出射孔。 在不同的实施例中,蓝色和黄色光束以15°,22°和45°的中心角度入射在所述过滤器上。 滤波器可以反射所有的一个偏振和另一个极化的一部分,然后可以提供偏振旋转后向反射器以将未反射的光返回到滤光器。

    Passive electro-optical tracker
    14.
    发明授权
    Passive electro-optical tracker 有权
    被动电光跟踪器

    公开(公告)号:US08280113B2

    公开(公告)日:2012-10-02

    申请号:US12786196

    申请日:2010-05-24

    IPC分类号: G06K9/00 G06F19/00

    摘要: A passive electro-optical tracker uses a two-band IR intensity ratio to discriminate high-speed projectiles and obtain a time-varying speed estimate from their time-varying temperature, as well as determining the trajectory back to the source of fire. In an omnidirectional system a hemispheric imager with an MWIR spectrum splitter forms two CCD images of the environment. Various methods are given to determine the azimuth and range of a projectile, both for clear atmospheric conditions and for nonhomogeneous atmospheric conditions. One approach uses the relative intensity of the image of the projectile on the pixels of a CCD camera to determine the azimuthal angle of trajectory with respect to the ground, and its range. A second uses a least squares optimization over multiple frames based on a triangle representation of the smeared image to yield a real-time trajectory estimate.

    摘要翻译: 无源电光跟踪器使用双波段IR强度比来区分高速射弹,并从其随时间变化的温度获得时变速度估计,以及确定回到火源的轨迹。 在全向系统中,具有MWIR光谱分配器的半球成像器形成环境的两个CCD图像。 给出了各种方法来确定抛射体的方位角和范围,无论是在清澈的大气条件和非均匀大气条件下。 一种方法使用射弹的图像的相对强度在CCD照相机的像素上,以确定轨迹相对于地面的方位角及其范围。 第二个使用基于模糊图像的三角形表示的多个帧的最小二乘优化来产生实时轨迹估计。

    Passive electro-optical tracker
    15.
    发明授权
    Passive electro-optical tracker 失效
    被动电光跟踪器

    公开(公告)号:US08355536B2

    公开(公告)日:2013-01-15

    申请号:US12709780

    申请日:2010-02-22

    IPC分类号: G06K9/00

    摘要: A passive electro-optical tracker uses a two-band IR intensity ratio to discriminate high-speed projectiles and obtain a speed estimate from their temperature, as well as determining the trajectory back to the source of fire. In an omnidirectional system a hemispheric imager with an MWIR spectrum splitter forms two CCD images of the environment. Three methods are given to determine the azimuth and range of a projectile, one for clear atmospheric conditions and two for nonhomogeneous atmospheric conditions. The first approach uses the relative intensity of the image of the projectile on the pixels of a CCD camera to determine the azimuthal angle of trajectory with respect to the ground, and its range. The second calculates this angle using a different algorithm. The third uses a least squares optimization over multiple frames based on a triangle representation of the smeared image to yield a real-time trajectory estimate.

    摘要翻译: 无源电光跟踪器使用双波段IR强度比来区分高速射弹,并从其温度获得速度估计,以及确定回到火源的轨迹。 在全向系统中,具有MWIR光谱分配器的半球成像器形成环境的两个CCD图像。 给出三种方法来确定射弹的方位角和范围,一种用于清晰的大气条件,另外两种用于非均匀大气条件。 第一种方法使用射弹图像的相对强度对CCD相机的像素来确定轨迹相对于地面的方位角及其范围。 第二个使用不同的算法来计算该角度。 第三个使用基于模糊图像的三角形表示的多个帧的最小二乘优化来产生实时轨迹估计。

    Passive Electro-Optical Tracker
    16.
    发明申请
    Passive Electro-Optical Tracker 失效
    被动电光跟踪器

    公开(公告)号:US20100278387A1

    公开(公告)日:2010-11-04

    申请号:US12709780

    申请日:2010-02-22

    IPC分类号: G06K9/00

    摘要: A passive electro-optical tracker uses a two-band IR intensity ratio to discriminate high-speed projectiles and obtain a speed estimate from their temperature, as well as determining the trajectory back to the source of fire. In an omnidirectional system a hemispheric imager with an MWIR spectrum splitter forms two CCD images of the environment. Three methods are given to determine the azimuth and range of a projectile, one for clear atmospheric conditions and two for nonhomogeneous atmospheric conditions. The first approach uses the relative intensity of the image of the projectile on the pixels of a CCD camera to determine the azimuthal angle of trajectory with respect to the ground, and its range. The second calculates this angle using a different algorithm. The third uses a least squares optimization over multiple frames based on a triangle representation of the smeared image to yield a real-time trajectory estimate.

    摘要翻译: 无源电光跟踪器使用双波段IR强度比来区分高速射弹,并从其温度获得速度估计,以及确定回到火源的轨迹。 在全向系统中,具有MWIR光谱分配器的半球成像器形成环境的两个CCD图像。 给出三种方法来确定射弹的方位角和范围,一种用于清晰的大气条件,另外两种用于非均匀大气条件。 第一种方法使用射弹图像的相对强度对CCD相机的像素来确定轨迹相对于地面的方位角及其范围。 第二个使用不同的算法来计算该角度。 第三个使用基于模糊图像的三角形表示的多个帧的最小二乘优化来产生实时轨迹估计。

    PASSIVE ELECTRO-OPTICAL TRACKER
    17.
    发明申请
    PASSIVE ELECTRO-OPTICAL TRACKER 有权
    被动电光跟踪器

    公开(公告)号:US20110261193A1

    公开(公告)日:2011-10-27

    申请号:US12786196

    申请日:2010-05-24

    IPC分类号: G06K9/00 H04N7/18

    摘要: A passive electro-optical tracker uses a two-band IR intensity ratio to discriminate high-speed projectiles and obtain a time-varying speed estimate from their time-varying temperature, as well as determining the trajectory back to the source of fire. In an omnidirectional system a hemispheric imager with an MWIR spectrum splitter forms two CCD images of the environment. Various methods are given to determine the azimuth and range of a projectile, both for clear atmospheric conditions and for nonhomogeneous atmospheric conditions. One approach uses the relative intensity of the image of the projectile on the pixels of a CCD camera to determine the azimuthal angle of trajectory with respect to the ground, and its range. A second uses a least squares optimization over multiple frames based on a triangle representation of the smeared image to yield a real-time trajectory estimate.

    摘要翻译: 无源电光跟踪器使用双波段IR强度比来区分高速射弹,并从其随时间变化的温度获得时变速度估计,以及确定回到火源的轨迹。 在全向系统中,具有MWIR光谱分配器的半球成像器形成环境的两个CCD图像。 给出了各种方法来确定抛射体的方位角和范围,无论是在清澈的大气条件和非均匀大气条件下。 一种方法使用射弹的图像的相对强度在CCD照相机的像素上,以确定轨迹相对于地面的方位角及其范围。 第二个使用基于模糊图像的三角形表示的多个帧的最小二乘优化来产生实时轨迹估计。

    Remote-phosphor LED downlight
    20.
    发明授权
    Remote-phosphor LED downlight 有权
    远红外LED筒灯

    公开(公告)号:US08016443B2

    公开(公告)日:2011-09-13

    申请号:US12387341

    申请日:2009-05-01

    IPC分类号: F21V33/00

    摘要: An embodiment of a collimating downlight has front-mounted blue LED chips facing upwards, having a heat sink on the back of the LED chips exposed in ambient air. The LED chips are mounted in a collimator that sends their blue light to a remote phosphor situated near the top of the downlight can. Surrounding the remote phosphor is a downward-facing reflector that forms a beam from its stimulated emission and reflected blue light. The phosphor thickness and composition can be adjusted to give a desired color temperature.

    摘要翻译: 准直筒灯的实施例具有面向上的前置蓝色LED芯片,在环境空气中暴露于LED芯片的背面具有散热片。 LED芯片安装在准直仪中,该准直器将蓝色光发射到位于筒灯顶部附近的远程荧光体。 围绕远程荧光体的是向下的反射器,其形成从受激发射和反射蓝光的光束。 可以调节荧光体的厚度和组成以产生所需的色温。