| optical fibre | has wavefront modification shape |  |
| has definition A long, thin strand of glass capable of excellent transmission of light over large distances. |  |
| has definition Glass and transparent plastics can be made into a very thin wire or fiber. Typical dimensions are 10-50 µm. If a ray enters one end of a fiber at the appropriate angle, it will undergo total internal reflection and travel down the fiber without much loss through the sides. |  |
| is a kind of wavefront modifier |  |
| instrument | has operator |  |
| artifact | has creator |  |
| has creation date |  |
| has purpose |  |
| has owner |  |
| physical object | has location or center of gravity |  |
| has angular momentum |  |
| has mass |  |
| has velocity |  |
| has momentum |  |
| has temperature |  |
| has volume |  |
| has extent |  |
| has material |  |