Establishing and maintaining focus in segmented-optic telescopes
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United States of America Patent
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Sep 20, 2011
Grant Date -
Feb 26, 2009
app pub date -
Oct 14, 2008
filing date -
Jan 9, 2002
priority date (Note) -
Expired
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Abstract
A multi-aperture interferometric optical system collects light propagating from a source of light and develops overlapping diffraction patterns on an optical detector that produces output signals for processing to automatically focus the optical system and form an image corresponding to the diffraction patterns. A preferred embodiment of the invention is a large aperture orbiting, earth-watching ring interferometric optical system configured such that there is no macro-structure pointing. Four mirror-ring structures direct incoming light to a multi-spectral primary optical detector that acquires light-pattern information to focus the optical system and derive an image.
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