Device and method for testing the wave front quality of optical components
US4707137A · kind A · utility
25Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1985 |
| Grant date | Nov 17, 1987 |
| Priority date | — |
| Expiry date | Oct 25, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2290/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device and method for testing the wave front quality of an optical component. The device is a shearing interferometer having two gratings to split and recombine a wave front beam to form interference fringes. The pattern of the fringes provides a means for measuring collimation error, astigmatism, and coma present in the beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.