Single wave beam scanning imaging method of passive THz wave imaging system
A technology of scanning imaging and imaging system, which is applied to the exploration of optical devices, etc., can solve the problems of not many applications in the THz band, large loss of the feeding system, and large space of the interference array, achieving strong market prospects and competitiveness, and fast scanning speed The effect of improving the degree and reducing the manufacturing cost
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[0011] The present invention will be further described below in conjunction with accompanying drawing:
[0012] The present invention consists of a horizontally oscillating plane mirror (line scanning mirror), a vertically oscillating plane mirror (field scanning mirror) and a concave mirror for converging light, such as figure 1 shown. exist figure 1 , the detector is placed on the focal plane of the concave mirror, the line scanning mirror is located on the conjugate surface of the detector, and is placed at 45° to the horizontal direction, the reflective surface faces upward, and the field scanning mirror is located directly above the line scanning mirror. Also placed at 45° to the horizontal with its reflective side facing downwards. In this way, the image point of the detector just passes through the concave mirror and the three reflections of the line scanning mirror and the field scanning mirror and is finally located outside the field scanning mirror (ie, the object ...
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