What is the synonym of concave mirror?

Concave mirror_Word explanation

Pinyin: āo jìng

Explanation: 1. See "concave mirror".

Example: In the shaping system that shapes a Gaussian beam into a flat-top beam, a system composed of two aspherical mirrors is a relatively simple structural form. The system consists of a plano-concave mirror and a plano-convex mirror.

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