| 摘要 |
A planar polarizable body is poled by placement between removable patterned plates which have conjugate patterns of open apertures and subjecting the open apertures to an electric field of the same polarity on opposite sides of the body, the field being of sufficient magnitude to induce polarization of the body material in opposite directions through the thickness dimension of the body with regions of alternate polarity at different lateral locations across the surface of the body in a desired pattern.
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