Abstract
Using finite element analysis, thermal deformation data of annulus-sector segmented primary mirror are obtained. Zernike circular polynomials and Zernike annulus-sector polynomials are used to fit the discrete date respectively. Then the fitting precision is compared. Based on Hartmann-Shark wavefront sensor, modal wavefront reconstruction of distorted wavefront induced by thermal deformation mirror is realized. Using two different polynomials before-mentioned, influences of the condition number and measurement error on reconstruction precision are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 274-278 |
| Number of pages | 5 |
| Journal | Guangxue Jishu/Optical Technique |
| Volume | 32 |
| Issue number | SUPPL. |
| Publication status | Published - Aug 2006 |
Keywords
- Annulus-sector segmented primary mirror
- Modal wavefront reconstruction
- Wavefront fitting
- Zernike annulus-sector polynomials
- Zernike circular polynomials