Laser-assisted single-point diamond turning of fused silica convex asphere
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2021-10-28 |
| Authors | Hossein Shahinian, Charan Bodlapati, R. J. Turnbull, Jayesh Navare, Yuxiang Zhong |
| Institutions | LAM Foundation |
| Citations | 1 |
Abstract
Section titled āAbstractāThis paper reports on the possibility of single point diamond turning (SPDT) of an axisymmetric convex aspherical fused silica lens. Due to the relatively abrupt tool wear during SPDT of fused silica, generally the process is not considered to be commercially acceptable. Surfaces created with SPDT are very rough and of no optical functionality. That said the SPDT can be a very convenient method in production of fused silica asphere and freeform optics should the process be amenable to producing relatively smooth surfaces. In this article it is shown that a lens fabricated via conventional fine grinding processes can be SPDTāed to roughness values below 100 nm RMS and surface form better than 800 nm PV.