ROOM-TEMPERATURE FILTERING FOR PASSIVE INFRARED IMAGING
    1.
    发明申请
    ROOM-TEMPERATURE FILTERING FOR PASSIVE INFRARED IMAGING 有权
    用于被动红外成像的室温过滤

    公开(公告)号:US20110279681A1

    公开(公告)日:2011-11-17

    申请号:US13170188

    申请日:2011-06-28

    IPC分类号: H04N5/33

    摘要: A device, for imaging a scene, includes a detector of the radiation that includes a plurality of detector elements, a circularly variable filter, a mechanism for rotating the filter perpendicular to the optical path of the radiation from the scene to the detector, and a data capture apparatus. All the detector elements are repeatedly interrogated by as a group as the filter rotates, to acquire images of the scene, each of which includes a plurality of image portions in respective spectral bands of the filter. The image portions are assembled to form processed images, each of which depicts the scene in a single respective spectral band.

    摘要翻译: 用于对场景进行成像的装置包括包括多个检测器元件的辐射检测器,圆形可变滤波器,用于使垂直于从场景到所述检测器的辐射的光路旋转滤光器的机构,以及 数据采集​​装置。 当滤镜旋转时,所有检测器元件作为一组被重复询问,以获取场景的图像,每个图像在滤波器的相应光谱带中包括多个图像部分。 图像部分被组装以形成经处理的图像,每个图像部分描绘单个相应光谱带中的场景。

    Drift Correction Method for Infrared Imaging Device
    2.
    发明申请
    Drift Correction Method for Infrared Imaging Device 有权
    红外成像装置漂移校正方法

    公开(公告)号:US20160165152A1

    公开(公告)日:2016-06-09

    申请号:US14949906

    申请日:2015-11-24

    摘要: A method reduces drift induced by environment changes when imaging radiation from a scene in two wavelength bands. Scene radiation is focused by two wedge-shaped components through a lens onto a detector that includes three separate regions. The wedge-shaped components are positioned at a fixed distance from the lens. The radiation from the scene is imaged separately onto two of the detector regions through an f-number of less than approximately 1.5 to produce a first pixel signal. Imaged radiation on each of the two regions includes radiation in one respective wavelength band. Radiation from a radiation source is projected by at least one of the wedge-shaped components through the lens onto a third detector region to produce a second pixel signal. The first pixel signal is modified based on a predetermined function that defines a relationship between second pixel signal changes and first pixel signal changes induced by environment changes.

    摘要翻译: 当从两个波段的场景成像辐射时,一种方法可减少由环境变化引起的漂移。 场景辐射由两个楔形部件通过透镜聚焦到包括三个独立区域的检测器上。 楔形部件定位在离镜头一定距离处。 来自场景的辐射通过小于约1.5的f数单独地成像到两个检测器区域,以产生第一像素信号。 两个区域中的每个区域上的成像辐射包括在一个相应波长带中的辐射。 来自辐射源的辐射由楔形部件中的至少一个通过透镜投射到第三检测器区域上以产生第二像素信号。 基于定义第二像素信号变化与由环境变化引起的第一像素信号变化之间的关系的预定函数修改第一像素信号。

    Single Device for Gas and Flame Detection, Imaging and Measurement
    3.
    发明申请
    Single Device for Gas and Flame Detection, Imaging and Measurement 有权
    气体和火焰检测,成像和测量的单一设备

    公开(公告)号:US20160187254A1

    公开(公告)日:2016-06-30

    申请号:US14983570

    申请日:2015-12-30

    IPC分类号: G01N21/3504

    摘要: A device images radiation from a scene. The scene can include two materials with spectral characteristics in different radiation wavelength regions. A static filtering arrangement includes two filters with different passbands corresponding to the two wavelength regions. An image forming optic forms an image of the scene on a detector. The radiation from the scene is imaged simultaneously through an f-number of less than 1.5 onto two detector pixel subsets. The imaged radiation on one pixel subset includes radiation in one wavelength region. The imaged radiation on the other pixel subset includes radiation in the other wavelength region. Electronic circuitry produces a pixel signal from each detector pixel. The pixel signals include information associated with absorption or emission of radiation in one of the respective wavelength regions by the two materials. The electronic circuitry determines the presence or absence of each of the two materials based on the pixel signals.

    摘要翻译: 设备从场景中拍摄辐射。 该场景可以包括在不同辐射波长区域具有光谱特性的两种材料。 静态滤波装置包括具有对应于两个波长区域的不同通带的两个滤波器。 图像形成光学器件在检测器上形成场景的图像。 来自场景的辐射通过小于1.5的f数同时成像到两个检测器像素子集上。 一个像素子集上的成像辐射包括一个波长区域中的辐射。 另一个像素子集上的成像辐射包括另一个波长区域的辐射。 电子电路从每个检测器像素产生像素信号。 像素信号包括通过两种材料与相应波长区域之一中的辐射的吸收或发射相关联的信息。 电子电路基于像素信号来确定两种材料中的每一种的存在或不存在。