公开(公告)号：US3869212A

公开(公告)日：1975-03-04

申请号：US38501373

申请日：1973-08-02

Applicant: NASA

Inventor： BURCHER ERNEST E ,  JOBSON DANIEL J ,  KATZBERG STEPHEN J ,  KELLY IV WILLIAM L

IPC: G01J3/28 ,  G01J3/51 ,  G01J3/48 ,  G01J3/42

CPC classification number: G01J3/02 ,  G01J3/021 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/51 ,  G01J3/513 ,  G01J2003/1226

Abstract: This invention integrates a spectrometer capability with the basic imagery function of facsimile cameras without significantly increasing mechanical or optical complexity, or interfering with the imaging function. The invention consists of a group of photodetectors arranged in a linear array in the focal plane of the fascimile camera with a separate narrow band interference filter centered over each photodetector. The interference filter photodetector array is on a line in the focal plane of the facsimile camera along the direction of image motion due to the rotation of the facsimile camera''s vertical mirror. As the image of the picture element of interest travels down the interference filter photodetector array, the photodetector outputs are synchronously selected and sampled to provide spectral information on the single picture element. The selection of the proper photodetector and data sampling is controlled by information derived from the servo system controlling the vertical mirror rotation.

Abstract translation: 本发明将光谱仪能力与传真机的基本图像功能相结合，而不会显着增加机械或光学复杂性或干扰成像功能。 本发明由一组光电探测器组成，该组光电探测器以直线阵列布置在fascimile摄像机的焦平面中，并以每个光电检测器为中心的单独的窄带干涉滤光片。 干涉滤光器光电检测器阵列由于传真机的垂直反射镜的旋转而沿着图像运动的方向在传真机的焦平面上的一行上。 当感兴趣的像素的图像沿着干涉滤光器光电检测器阵列向下移动时，光电检测器输出被同步地选择和采样以在单个图像元件上提供光谱信息。 适当的光电检测器和数据采样的选择由控制垂直反射镜旋转的伺服系统的信息控制。