Spatial full-region ultrahigh-contrast imaging method and coronagraph system
An imaging method and contrast technology, applied in the field of coronagraph systems, can solve problems such as the limited working area of high-contrast coronagraph imaging, and achieve the effects of reducing development cycle and cost, high-pass optical efficiency, and ensuring consistency
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[0033] The present invention will be further described in detail below with reference to the accompanying drawings.
[0034] The present invention is China Space Station Engineering Project "Cruise Telescope", National Natural Science Fund Astronomical Combined Key Support Project "Research on High Contrast Improvement Imaging of Large Circular Stitching Mirror Telescope (U2031210" (U2031210 ), The national major scientific research instrument development project "Development of the Solar-Outer Planet High Contrast Imaging Exploration Instrument" (11827804).
[0035] The present invention employs a circular belt pupil transmittance modulation technique, and the transmittance gradient modulation is performed along the system's dysfunction to achieve the suppression of the stars strongly diffracted light. Unlike the floor-to-ground transmittance modulation method, the invention is optimized to 10 in the detection requirements of space-free planet, in particular a class planet. -8 Th...
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