Analysis on the parameter of Lyot stop in internally occulting refractive coronagraph

	Analysis on the parameter of Lyot stop in internally occulting refractive coronagraph
	Bu H.; Zhang H.; Lu Z.; Zhang Z.
	2014
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	ISBN/02532239
卷号	34 期号:12
摘要	Coronagraph is a device used to observe the corona by making a total solar eclipse-like image on the image plane. The dark background of the image plane is provided by the structures used to suppress the stray light in the coronagraph. The structure named Lyot stop is used to remove the diffracted ring formed by diffracted light from the edge of the front aperture. The structure parameters of the Lyot stop are adjusted based on the diffracted light of different wavelengths. The parameters of the Lyot stop are confirmed for removing the diffracted light entirety and enhancing the energy on the image plane radiated by solar corona. The cause of the diffraction rings is analyzed by the simulation of the internally occulting refractive coronagraph. The design and the parameters of the Lyot stop are determined by theoretical analysis. The feature size of the diffracted ring is matched with the parameters of the Lyot stop by the processing of the imaging. The effect of the stray-light suppression based on Lyot stop is achieved by the experiments. The capability of the stray-light suppression of coronagraph is improved.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43743
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Bu H.,Zhang H.,Lu Z.,et al. Analysis on the parameter of Lyot stop in internally occulting refractive coronagraph[J]. Guangxue Xuebao/Acta Optica Sinica,2014,34(12).
APA	Bu H.,Zhang H.,Lu Z.,&Zhang Z..(2014).Analysis on the parameter of Lyot stop in internally occulting refractive coronagraph.Guangxue Xuebao/Acta Optica Sinica,34(12).
MLA	Bu H.,et al."Analysis on the parameter of Lyot stop in internally occulting refractive coronagraph".Guangxue Xuebao/Acta Optica Sinica 34.12(2014).

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