Fig. 1. Schematic of all-day star sensor optical system based on field of view gating

Fig. 2. The designed optical path diagram of FOV gated optical imaging system

Fig. 3. Distribution of spots in the center gated FOV and the edge gated FOV of the system

Fig. 4. The structure and principle of a microshutter element

Fig. 5. Three-dimensional schematic of the microshutter array

Fig. 6. The variation curve of driving voltage with cantilever beam length when the number of cantilever beams is 2，4，and 6，respectively

Fig. 7. Response time of a microshutter element when the length of cantilever beam is 200 μm，300 μm and 400 μm，respectively

Fig. 8. The torsional angle of microshutter element under different drive voltages

Fig. 9. Opto-mechanical model of miscellaneous light analysis for FOV gated optical imaging system

Fig. 10. Optical pathway diagram of miscellaneous light analysis for FOV gated optical imaging system

Fig. 11. Average illumination at imaging plane when the surface reflectivity of microshutter array is 3%，50% and 80%，respectively