Compact Space Optical System Design with Large Relative Aperture and Field of View

Zhiguang Ren; Xuyang Li; Dongwei Ni

doi:10.3788/AOS201939.0922001

Acta Optica Sinica, Volume. 39, Issue 9, 0922001(2019)

Compact Space Optical System Design with Large Relative Aperture and Field of View

Zhiguang Ren^1,2、**, Xuyang Li^1、*, and Dongwei Ni¹

¹ Space Optics Lab, Xi′an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi′an, Shaanxi 710119, China

² School of Physics and Information Technology, Shaanxi Normal University, Xi′an, Shaanxi 710119, China

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Figures & Tables(12)

Fig. 1. Initial configuration of catadioptric optical system

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Fig. 2. Schematics of traditional Mangin mirror and achromatic Mangin mirror. (a) Traditional Mangin mirror; (b) achromatic Mangin mirror

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Fig. 3. Layout of optical system

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Fig. 4. MTF curves of system. (a) MTF curves of field 1-5; (b) MTF curves of field 6-10

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Fig. 5. Spot diagram of system

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Fig. 6. Astigmatic, curvature of field, and distortion. (a) Astigmatic and curvature of field; (b) distortion

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Fig. 7. Optical path of detection compensator

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Fig. 8. Residual wave aberration of testing system

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Table 1. Main specifications of optical imaging system
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Table 1. Main specifications of optical imaging system
System parameter Value
Focal length /mm 380
Field of view /[(°)×(°)] 4×4
F number 1.8
Working distance /mm >15
Spectral bands /nm 450-850
Pixel size /(μm×μm) 2×2

Table 2. Initial structural parameters of optical system
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Table 2. Initial structural parameters of optical system
Surface Radius /mm Quadratic coefficient Thickness /mm
Primary mirror -420.00 1.4893 -117.14
Secondary mirror -417.86 24.8548 167.14

Table 3. Surface parameters of achromatic Mangin mirror
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Table 3. Surface parameters of achromatic Mangin mirror
Surface Radius /mm Quadratic coefficient Distance /mm Material
1 -1989.88 0 -8 HZF6
2 -49828.54 0 -8 DK9L
3 -876.5298 -9.058 - -

Table 4. Initial structural parameters of optical system with achromatic Mangin mirror

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Table 4. Initial structural parameters of optical system with achromatic Mangin mirror

Surface	Radius /mm	Quadratic coefficient	Thickness /mm	Materials
1	-3500		15.0	SILICA_SPECIAL
2	-882.55	-9.3316	138.5
STOP	-520.328	-0.3451	-122.5
4	-2100.97		-8.0	SF4_SCHOTT
5	83472.675		-8.0	NFK5_SCHOTT
6	-882.55	-9.3316	8.0	NFK5_SCHOTT
7	83472.675		8.0	SF4_SCHOTT
8	-2100.97		50.8
9	74.1	0.5664	10.0	NSK16_SCHOTT
10	67.12		10.5
11	459.756	-8.0859	10.0	DLAF79_CDGM
12	53.512		33.8
13	73.722		17.2	HZK50_CDGM
14	-464.806		12.6
15	84.72		13.3	HZK9A_CDGM
16	361.916		15.0

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Zhiguang Ren, Xuyang Li, Dongwei Ni. Compact Space Optical System Design with Large Relative Aperture and Field of View[J]. Acta Optica Sinica, 2019, 39(9): 0922001

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