公开(公告)号：US5264916A

公开(公告)日：1993-11-23

申请号：US851281

申请日：1992-02-07

Applicant: Boyd B. Bushman

Inventor： Boyd B. Bushman

IPC: G01J4/00 ,  G01N21/21 ,  G01N21/35 ,  G02B23/18 ,  G02B26/04 ,  G02B27/28 ,  G01J1/01

CPC classification number: G01J4/00 ,  G01N21/21 ,  G02B23/18 ,  G02B26/04 ,  G02B27/28 ,  G06K9/3241 ,  G01J2004/004 ,  G01N2021/1765 ,  G01N21/35

Abstract: A device will detect man-made objects by using a polarizer. The polarizer rotates about an axis in front of a lens array. The rotation of the polarizer alternately polarizes light received in proportion to the speed of rotation. This produces flashing in intensity for detecting the object as well as background rejection due to its lack of polarization. A man-made object having both horizontal and vertical surfaces of a type that will reflect light that can be polarized will provide flashing through the lens array as the polarizer passes through horizontal and vertical position. On the other hand, backgrounds don't have polarized components and won't flash. Attention is drawn to the man-made target. The background can also be electronically eliminated from the observed scene, permitting precise lock-on to the target.

Abstract translation: 设备将通过使用偏光片检测人造物体。 偏光镜绕透镜阵列前方的轴旋转。 偏振器的旋转使得与旋转速度成比例地接收的光交替偏振。 由于其缺乏极化，这样会产生用于检测物体的强度闪烁以及背景抑制。 具有水平和垂直表面的人造物体，当反射器通过水平和垂直位置时，具有反射可以被偏振的光的类型将提供通过透镜阵列的闪烁。 另一方面，背景没有偏振分量，不会闪烁。 注意人造目标。 背景也可以从观察到的场景中被电子消除，从而允许对目标的精确锁定。