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- W2077991208 abstract "Exit pupil correction of the Large Deployable Reflector's (a proposed IR to sub-mm space telescope) segmented primary can be done by reimaging it onto a like segmented surface at the exit pupil. This allows the primary to be more flexible, the adaptive element to be smaller, and the supporting structure to be cheaper than if all correction were performed at a stiffly supported primary. We consider piston, tilt, and decenter errors of an annulus of the primary and show the equations for required corrections. To verify these, we simulate the perturbations with spline functions in the lens design program ACCOSV. Strehl ratios used to measure image quality show that a piston error of 1 mm is fully corrected over a 5 arcmin field for an f/10 system with a 0.7 n.a. primary at 30 micrometers. Limits of correction are also shown for tilt and decenter errors of segments. Tolerances are given for tilt and decenter errors of the reimaging optics also." @default.
- W2077991208 created "2016-06-24" @default.
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- W2077991208 date "1986-02-14" @default.
- W2077991208 modified "2023-09-23" @default.
- W2077991208 title "Upgrading Telescopes By Active Pupil Wavefront Correction" @default.
- W2077991208 doi "https://doi.org/10.1117/12.949222" @default.
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