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1. 发明申请

WO2003075554A1 SCANNING APPARATUS 审中-公开
标题翻译：扫描仪
公开(公告)号：WO2003075554A1
公开(公告)日：2003-09-12
申请号：PCT/GB2003/000698
申请日：2003-02-14
申请人： REMTONS LIMITED , LETTINGTON, Alan, L
发明人： LETTINGTON, Alan, L
IPC分类号： H04N3/08
CPC分类号： H04N3/08 , H04N3/09
摘要： Scanning apparatus operable in the microwave, mm-wave and infrared ranges and comprises a support structure, a first reflective disc or mirror (10) which is mounted in said support structure for rotation relative to the support structure about a first axis (14), and a second reflective disc or mirror (12) which is mounted in said support structure for rotation relative to the support structure about a second axis (16) and driving means for said discs or mirrors arranged to drive these in respective opposite senses. In operation of the apparatus, radiation from a scene being scanned reaching a reflective surface of the first disc or mirror is reflected thereby onto a reflective surface of the second disc or mirror, to be reflected by the latter, in turn, onto the reflective surface of the first disc or mirror again, to be reflected from the first disc or mirror into or onto a further part of the apparatus incorporating a receiver or receivers for such radiation. The reflective surface of the first disc or mirror has an axis of rotational symmetry, tilted at a first small angle relative to said first axis and the reflective surface of the second disc or mirror has an axis of rotational symmetry tilted at a second angle relative to said second axis. The driving means for the discs or mirrors is arranged to drive these in such a way as to effect a substantially linear scan, the size of said second angle relative to said first angle being selected so as to reduce or eliminate pupil wander in the direction orthogonal to the direction of line scan.
摘要翻译：在微波，毫米波和红外范围内可操作的扫描装置包括支撑结构，第一反射盘或反射镜（10），其安装在所述支撑结构中，用于围绕第一轴线（14）相对于支撑结构旋转，以及第二反射盘或反射镜（12），其安装在所述支撑结构中，用于围绕第二轴线（16）相对于所述支撑结构旋转;以及用于所述盘或反射镜的驱动装置，所述驱动装置被布置成以相应的相反方向驱动它们。在装置的操作中，来自被扫描的场景的到达第一盘或反射镜的反射表面的辐射被反射到第二盘或反射镜的反射表面上，以被后者反射回反射表面再次从第一个光盘或镜子反射入或包含在该装置的另一部分中，该装置包括用于这种辐射的接收器或接收器。第一盘或反射镜的反射表面具有相对于所述第一轴线以第一小角度倾斜的旋转对称轴线，并且第二盘或反射镜的反射表面具有相对于第二盘或反射镜以第二角度倾斜的轴线说第二轴。用于盘或镜的驱动装置被布置成以这样的方式驱动它们以实现基本上线性的扫描，所述第二角度相对于所述第一角度的大小被选择为减少或消除正交方向上的瞳孔漂移到线扫描的方向。

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