NASA NTRS · 19870000064
Wide-Angle, Flat-Field Telescope
Abstract
All-reflective system unvignetted. Wide-angle telescope uses unobstructed reflecting elements to produce flat image. No refracting elements, no chromatic aberration, and telescope operates over spectral range from infrared to far ultraviolet. Telescope used with such image detectors as photographic firm, vidicons, and solid-state image arrays.
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Hallam, K. L., Howell, B. J., Wilson, M. E.. 1987-02-01. Wide-Angle, Flat-Field Telescope. https://ntrs.nasa.gov/citations/19870000064
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