Abstract
An aspheric surface testing method using part-compensating lens is presented. Specific design requirements and design methods of part-compensating lens are given. The design requirements are applied in the optimization design of the part-compensating lens to three kinds of aspheric surfaces, and it is proved that the structure of part-compensating lens is much simpler than that of null compensator. Analysis is made about the asphericity compensation range of each part-compensating lens. The results demonstrate that aspheric surfaces with different relative aperture and asphericity can be compensated by part-compensating lens which is simple and easily fabricated. The measurement precision can reach λ/10.
| Original language | English |
|---|---|
| Pages (from-to) | 625-628 |
| Number of pages | 4 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 24 |
| Issue number | 7 |
| Publication status | Published - Jul 2004 |
Keywords
- Aspheric surface testing
- Interferometry
- Normal aberration
- Part-compensating lens