Quantitative Analysis of Influence of Micro-Vibration on Space Optical Imaging

Fig. 10. MTF curves of main optical surface’s translational vibration along x-axis. (a) $t_{e} = T$ , x-direction; (b) $t_{e} = T$ , y-direction; (c) $t_{e} < T$ , x-direction; (d) $t_{e} < T$ , y-direction; (e) $t_{e} > T$ , x-direction; (f) $t_{e} > T$ , y-direction

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Fig. 11. MTF curves of main optical surface’s rotational vibration along x-axis. (a) $t_{e} = T$ , x-direction; (b) $t_{e} = T$ , y-direction; (c) $t_{e} < T$ , x-direction; (d) $t_{e} < T$ , y-direction; (e) $t_{e} > T$ , x-direction; (f) $t_{e} > T$ ,y-direction

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Fig. 12. Simulation results of sensitive frequency band analysis. (a) 3D plot of two types of influence boundaries; (b) influence boundary curves at Nyquist frequency

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Fig. 13. Simulation results of sensitive exposure duration analysis. (a) 3D plot of two types of influence boundaries; (b) influence boundary curves at Nyquist frequency

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Table 1. Optical system structural parameters

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Table 1. Optical system structural parameters

Parameter	Main optical surface	Second optical surface
Radius of curvature /mm	-393.18	-176.67
Optical separation $h$ /mm	139.93	158.80
Half caliber /mm	74.79	20.59
Facial shape	Paraboloid	Hyperboloid
Quadratic coefficient	-1.000	-4.463

Table 2. Vibration parameters

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Table 2. Vibration parameters

Parameter	Value or type
Vibration frequency /Hz	80
Vibration period /ms	12.5
Maximum amplitude of translational vibration /mm	0.015
Maximum amplitude of rotational vibration /（°）	0.001
Vibration optical surface	Main optical surface
Vibration axis	x axis

Table 3. Correspondence between extreme point coordinates and influence boundaries when $t_{e} < T$
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Table 3. Correspondence between extreme point coordinates and influence boundaries when $t_{e} < T$
$δ t / m s$ 1.2500 4.3750 7.5000 10.6250
Influence boundary type Vibration Optical structure Vibration Optical structure

Table 4. Correspondence between extreme point coordinates and influence boundaries when $t_{e} > T$
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Table 4. Correspondence between extreme point coordinates and influence boundaries when $t_{e} > T$
$δ t / m s$ 1.8125 4.9375 8.0625 11.1875
Influence boundary type Optical structure Vibration Optical structure Vibration

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Jiyuan Wang, Xubin Zhou, Zijun Wang, Zhiguan Zhang. Quantitative Analysis of Influence of Micro-Vibration on Space Optical Imaging[J]. Acta Optica Sinica, 2024, 44(24): 2411001

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Paper Information

Category: Imaging Systems

Received: Apr. 18, 2024

Accepted: May. 13, 2024

Published Online: Dec. 16, 2024

The Author Email: Wang Zijun (w835985269@foxmail.com)

DOI:10.3788/AOS240872

CSTR:32393.14.AOS240872

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Optical system structural parameters

Table 1. Optical system structural parameters

Table 2. Vibration parameters

Table 2. Vibration parameters

Table 3. Correspondence between extreme point coordinates and influence boundaries when te<T

Table 3. Correspondence between extreme point coordinates and influence boundaries when te<T

Table 4. Correspondence between extreme point coordinates and influence boundaries when te>T

Table 4. Correspondence between extreme point coordinates and influence boundaries when te>T

Table 3. Correspondence between extreme point coordinates and influence boundaries when $t_{e} < T$

Table 3. Correspondence between extreme point coordinates and influence boundaries when $t_{e} < T$

Table 4. Correspondence between extreme point coordinates and influence boundaries when $t_{e} > T$

Table 4. Correspondence between extreme point coordinates and influence boundaries when $t_{e} > T$