[1] [1] SOCKER D G, BRUECKNER G E, KORENDYKE C M, et al.. Spectrometric and spectropolarimetric observation of the solar corona with the LASCO/SOHO Lyot coronagraph［C］.SPIE′s 1994 International Symposium on Optics, Imaging, and Instrumentation. Proc SPIE 2283, X-Ray and Ultraviolet Spectroscopy and Polarimetry, San Diego, CA, USA, 1994: 53-57.

[2] [2] VIVES S, LAMY P L, VIAL J C. Optical design of the Lyman alpha coronagraph for the LYOT microsatellite［C］.Optical Science and Technology, SPIE′s 48th Annual Meeting. Proc SPIE 5171, Telescopes and Instrumentation for Solar Astrophysics, San Diego, California, USA, 2004: 298-306.

[3] [3] VIAL J C, SONG X Y, LEMAIRE P, et al.. The solar high-resolution imager: coronagraph LYOT mission［C］.Astronomical Telescopes and Instrumentation. Proc SPIE 4853, Innovative Telescopes and Instrumentation for Solar Astrophysics, Waikoloa, Hawai′i, USA, 2003: 479-489.

[4] [4] ENRICO V, DEPPO V D, GIAMPIERO N, et al.. Preliminary internal straylight analysis of the METIS instrument for the solar orbiter ESA mission［C］.SPIE Astronomical Telescopes + Instrumentation. Proc SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, Amsterdam, Netherlands, 2012: 84424N.

[5] [5] POLITO V, J. CORSO A, ZUPPELLA P, et al.. Analysis of optical efficiency of METIS coronagraph telescope on board of the Solar Orbiter mission［C］.SPIE Astronomical Telescopes + Instrumentation. Proc SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, Amsterdam, Netherlands, 2012: 84433G.

[6] [6] FINESCHI S, ANTONUCCI E, GIAMPIERO N, et al.. METIS: a novel coronagraph design for the Solar Orbiter mission［C］.SPIE Astronomical Telescopes + Instrumentation. Proc SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, Amsterdam, Netherlands, 2012: 84433H.

[7] [7] PANCRAZZI M, FOCARDI M, USLENGHI M, et al.. On board processing procedures for the Solar Orbiter METIS coronagraph［C］.SPIE Remote Sensing. Proc SPIE 8892, Image and Signal Processing for Remote Sensing XIX, Dresden, Germany, 2013: 889218.

[8] [8] ZHANG H X, LU ZH W, XIA L D, et al.. Stray light suppressing of optical system in white light coronagraph［J］. Opt. Precision Eng., 2009, 17(10): 2371-2376.(in Chinese)

[9] [9] BU H Y, LU ZH W, ZHANG H X, et al.. Suppresion of stray light ghost image in internally occulting refractive ground-based coronagraph［J］. Chinese Optics, 2013, 6(2): 231-236.(in Chinese)

[10] [10] BU H Y, ZHANG H X, LU ZH W, et al.. Analysis on the parameter of Lyot Stop in internally occulting refractive coronagraph［J］. Acta Optica Sinica, 2014, 34(12): 147-152.(in Chinese)

[11] [11] LI D, LIU P, CHEN B, et al.. Stray light analysis and experimental verification of spherical reflective coronagraph experimental devices［J］. Opt. Precision Eng., 2015, 23(5): 1265-1271.(in Chinese)

[12] [12] WANG X D, CHEN B, HUO T L, et al.. Design of second-order 121.6-nm narrowband minus filters using asymmetrically apodized thickness modulation［J］. Applied Physics B, 2018, 124(7): 139.

[13] [13] WANG X Dang, Bo CHEN B, HUO T L, et al.. Design of first-order 121.6 nm minus filters［J］. Applied Spectroscopy, 2018, 72(10): 1498-1502.