Focal-length measurements of deep parabolic mirrors |
| |
| Authors: | M. Malý B. Nábělek |
| |
| Affiliation: | Dpt. of Applied Optics, Institute of Physics, Czechoslovak Academy of Sciences, Prague, Czechoslovakia |
| |
| Abstract: | The focal length of deep parabolic mirrors is determined by using the shadows of two fibres placed in front of the mirror and illuminated by collimated light. By double reflexion on the deep mirror two shadow images of each fibre are formed and if all these images are in contact, the fibre distance is 4? |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
