Flexure hinge phase shift adapter for fizeau interferometer
US6538747B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2000 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Oct 17, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2290/35
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An adapter for mounting on an interferometer to provide a phase shift of the reference transmission sphere or flat used on the output of the interferometer is made of a monolithic body separated into two portions. The first portion is a fixed end support portion that mounts on the interferometer, and the second portion is a movable end support portion that mounts the sphere or flat that is used for transmission of the optic beam. The movable end support portion is mounted and the fixed end support portion are connected through flexure hinges that permit axial movement between the support portions, and a single actuator can be used between the support portions for causing axial movement. The flexure hinges are located so the adapter is very stiff against all motions except axial motions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.