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凸透镜是会聚还是发散
更新时间： 2021-01-30 22:23:06  

1、凸透镜是会聚光线的，所以又叫作会聚透镜，凹透镜是发散光线的，又叫作发散透镜。

2、凸透镜是根据光的折射原理制成的。凸透镜是中央较厚，边缘较薄的透镜。凸透镜分为双凸、平凸和凹凸（或正弯月形）等形式，凸透镜有会聚光线的作用故又称会聚透镜，较厚的凸透镜则有望远、会聚等作用，这与透镜的厚度有关。

关键词： 凸透镜 会聚 还是 发散

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