Physics An optically formed duplicate, counterpart, or other representative reproduction of an object, especially an optical reproduction of an object formed by a lens or mirror.
镜像，映像：物体由于光学原因形成的复制品、对应物或其它形式的代表物，尤指通过透镜或镜子而形成的视觉复制品。
This effect, in analogy to its radiofrequency counterpart, is known as optical rectification.
同它的射频对应物相仿，这种现象称为光学整流。
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