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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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