Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696584 | Phase grating having an unprotected relief structure with a grating structure that causes destructive interference of reflections | Andreas Franz | 1997-12-09 |
| 5689336 | Photoelectric position measuring system | — | 1997-11-18 |
| 5678319 | Index grating having partial fields that are geometrically offset in the measuring direction | — | 1997-10-21 |
| 5648658 | Apparatus and method for generating position-dependent signals using a scanning plate having a plurality of differently configured scanning regions | Wolfgang Holzapfel | 1997-07-15 |