| 单词 |
cassegrain reflector system |
| 释义 |
Cassegrain Reflector System Cassegrain Reflector System a type of reflector. In the Cassegrain system the image of a heavenly body is formed behind the primary parabolic mirror by the rays of light directed through an opening in it by means of a secondary convex hyperbolic mirror. The system was proposed by the French physicist N. Cassegrain in 1672. |
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