会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 74. 发明申请
    • Dual band framing reconnaissance camera
    • 双频框架侦察摄像头
    • US20030185549A1
    • 2003-10-02
    • US10313727
    • 2002-12-06
    • Recon/Optical, Inc.
    • Andrew J. PartynskiStephen R. BeranAllie M. BakerJohn JonesStephan Wyatt
    • G03B039/00
    • H04N5/2251G01C11/025G02B7/18G02B17/0808G02B17/0852G02B17/0896
    • A framing aerial reconnaissance camera is described which has a catoptric Cassegrain optical system forming an objective lens that directs radiation to a spectrum-dividing prism. The prism directs radiation in the visible portion of the electromagnetic spectrum into a first optical path having a two-dimensional image-recording medium, such as a charge-coupled device. Radiation in the infrared (IR) band of the spectrum is directed to a second optical path, which has a two-dimensional IR-sensitive image-recording medium, such as an electro-optical IR imaging array. The entire camera is rotated about the aircraft roll axis in a continuous fashion to generate frames of imagery providing panoramic coverage of the scene across the line of flight. While the camera is being rotated about the roll axis, the arrays are exposed to the scene repeatedly to generate a series of two-dimensional frames of imagery. Forward motion compensation is accomplished by rotation of the Cassegrain optical system in the direction of flight. Image motion due to the camera roll is canceled out in the array by moving pixel information through the arrays as the same rate as the image rotation due to roll. The combination of roll motion compensation and forward motion compensation freezes the image relative to the image recording media, allowing high resolution images to be obtained of the terrain of interest in two different bands of the electromagnetic spectrum simultaneously.
    • 描述了一种框架空中侦察摄像机,其具有形成将辐射引导到频谱分割棱镜的物镜的反射卡塞格林光学系统。 棱镜将电磁光谱的可见部分中的辐射引导到具有诸如电荷耦合器件的二维图像记录介质的第一光路中。 光谱的红外(IR)频带中的辐射被引导到具有二维IR敏感图像记录介质(例如电光IR成像阵列)的第二光路。 整个摄像机以连续的方式围绕飞机侧倾轴线旋转以产生帧图像,从而提供整个飞行线上的场景的全景覆盖。 当照相机围绕卷轴旋转时,阵列反复暴露于场景以产生一系列二维图像帧。 前向运动补偿通过卡塞格伦光学系统沿飞行方向的旋转来实现。 通过将像素信息通过阵列移动,以与由于滚动的图像旋转相同的速率,阵列中的图像移动被抵消。 滚动运动补偿和向前运动补偿的组合相对于图像记录介质冻结图像,允许在电磁频谱的两个不同频带中同时获得感兴趣的地形的高分辨率图像。