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制限視野絞り(中間レンズ絞り)

制限視野絞り(中間レンズ絞り)

selected-area aperture (intermediate-lens aperture)

[目次:レンズ系]

制限視野回折を行なう際、回折図形を得る試料の領域を制限する絞り。対物レンズの像面(中間レンズの物面)に挿入される。絞りの直径は通常 10~100μm。

An aperture for selecting a specimen area in the selected area diffraction (SAD) mode. The aperture is inserted into the image plane of the objective lens (or object plane of the intermediate lens). The aperture diameter ranges normally from 10 μm to 100 μm.

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