| Autor: |
Minoru Sasaki, Minoru Sasaki, Wataru Kamada, Wataru Kamada, Kazuhiro Hane, Kazuhiro Hane |
| Zdroj: |
Japanese Journal of Applied Physics; December 1999, Vol. 38 Issue: 12 p7190-7190, 1p |
| Abstrakt: |
The automatic alignment of a pinhole is realized in two dimensions and its function as a spatial filter is confirmed. A pinhole device surrounded by four photodiode cells fabricated by Si micromachining techniques is placed on a movable xystage which consists of four shape-memory-alloy actuators. The feedback control based on the signal obtained from the integrated photodiode is confirmed to be feasible for aligning a pinhole in two dimensions even if the shape-memory-alloy actuators are disadvantageous for controlling its displacement including cross-interaction. The spatial filtering function of an automatically aligned pinhole is confirmed. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
