凹面反射镜：-教育设备"物理学设备 凹面反射镜：-教育设备"物理学设备"凹面反射镜
凹面反射镜–物理学光学设备
一个凹面反射镜，或聚光反射镜，有一的反射表面那个隆起的向内(距离射光)。 凹面镜反射光线内的一个焦点。 它们被用于聚焦光线。 反射镜是非常切片，光真正的(喷漆在后面)有一个美丽的戒指在其外表面)。
直径的焦距
50mm10
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