Jinpeng CHI, Hongxin ZHANG, Xiaodong WANG, Qingyu MENG, Zichang QIN, Yunhui LI, Taisheng WANG, Fengyou Li. Optical system and stray light suppression of Lyot coronagraph[J]. Optics and Precision Engineering, 2022, 30(17): 2050
- Optics and Precision Engineering
- Vol. 30, Issue 17, 2050 (2022)
Fig. 1. Working principle of Lyot coronagraph
Fig. 2. Optical structure of Lyot coronagraph
Fig. 3. Optical structure of PAST system
Fig. 4. Spot diagrams of PAST system
Fig. 5. MTF curves of PAST system
Fig. 6. Mechanical structure of Lyot coronagraph
Fig. 7. Suppression of direct Jupiter light
Fig. 8. Suppression of diffractive light
Fig. 9. Schematic diagram of experimental set-up for stray light suppression of Lyot coronagraph
Fig. 10. Photos of experimental set-up
Fig. 11. Aperture stop imaging position
Fig. 12. Experimental result of Spider diffraction on Lyot stop
Fig. 13. Stray light on image plane of Lyot coronagraph
Fig. 14. Stray light suppression level of PAST system
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Table 1. Requirements of Lyot coronagraph
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