Off-axis focal planes make room for beam splitters. System includes two off-axis primary spherical reflectors, each concentric with refractive corrector at aperature. Off-axis design assures large aperture required for adequate spatial resolution. Separate images have precise registration, used for multispectral resource mapping or remote sensing.
Multispectral Dual-Aperture Schmidt Objective
NASA Tech Briefs ; 7 , 4
1983-10-01
Miscellaneous
No indication
English
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