Abstract
GC-211 optical transfer function (OTF) analysis instrument made by the Dept. of optoelectronic Eng., Beijing Inst. of Technol., is a large precise instrument for measuring the OTF of complex system like periscope. It can utilize two measuring methods including knife-edge scanning and slit scanning. But in the process of application, the results of knife-edge scanning are always lower than the theoretical results. Through analysis and numerical calculation, it was found that the anti-jamming ability of knife-edge scanning is inferior to that of slit scanning under the same condition. The reason that the measuring data are often smaller than the actual ones with knife-edge scanning is clarified.
| Original language | English |
|---|---|
| Pages (from-to) | 41-43 |
| Number of pages | 3 |
| Journal | Guangxue Jishu/Optical Technique |
| Volume | 27 |
| Issue number | 1 |
| Publication status | Published - Jan 2001 |
Keywords
- Anti-jamming
- Knife-edge scanning
- Optical transfer function
- Slit scanning