RC Optical Systemsの意味・使い方・読み方

ウィキペディア英語版

出典:『Wikipedia』 (2010/12/09 14:59 UTC 版)

ウィキペディア英語版からの引用

引用: RC Optical Systems is a high-end American telescope and optics manufacturer that specializes in Ritchey-Chrétien telescopes with hyperbolic mirrors. RC also makes related mounts and systems for the telescopes, with a focus on open and closed carbon fiber trusses for low expansion. The Ritchey-Chrétien uses two mirrors and no refractors, which reduces light loss and its optical characteristics make it popular for astrophotography. RC Optical Systems was started 1998 and is located in Flagstaff, Arizona. Telescopes and systems are sold commercially to individuals, institutions, and governments. The smallest RCOS telescope, the 12.5 inch F/9 Ritchey-Chrétien had a base price of just over twenty thousand US dollars in 2009, with large and/or custom models costing considerably more.

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