An Experimental Twenty-Inch Segmented Active Mirror |
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Authors: | Crane R |
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Institution: | The Perkin-Elmer Corporation, Norwalk, Conn. 06852; |
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Abstract: | Segmented active optics is a new design concept for making a lightweight optically stable primary reflector for large optical telescopes and especially for space telescopes. The concept applied to a threesegment 20-inch primary mirror has been proven feasible in laboratory experiments. Test results showed diffraction-limited performance with automatic optical figure control to better than L/50 rms. |
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