Abstract
During interferometric testing, an objective, accurate evaluation of the surface information is one of the key factors needed to realize fast, deterministic manufacturing of large off-axis aspheric mirrors. An error-separation matrix for analysis of the error information in the testing results was developed by modeling the aspheric surface as a rigid body with five degrees of freedom. Wavefront aberration theory was used to find expressions for the adjustment errors and parameters for computerized testing of large aperture off-axis aspheric mirrors. Simulations correctly predicted interferometric patterns corresponding to different adjustment errors so the simulations can be used to quickly adjust the test system.
| Original language | English |
|---|---|
| Pages (from-to) | 187-190 |
| Number of pages | 4 |
| Journal | Qinghua Daxue Xuebao/Journal of Tsinghua University |
| Volume | 46 |
| Issue number | 2 |
| Publication status | Published - Feb 2006 |
Keywords
- Aspheric surface
- Interferometric testing
- Rigid body
- Wavefront aberration