Magnetic mirror air bearing for Michelson interferometer with lateral motion
US7705493B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 1, 2008 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Aug 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/0356
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention claimed is a novel magnetic mirror air bearing for a Michelson interferometer with lateral motion. A precise kinematic mount is used in combination with magnetic fields wherein current can be applied on a centerline to move a piston and mirror laterally without pitch and yaw so as to effect accurate light beam reflection regardless of distance of lateral movement within a defined space. The assembly is able to operate across extended temperature ranges by utilizing materials which expand and contract at similar rates, and contains a thermalizing cavity which will thermalize the gas to avoid temperature induced artifacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.