convex lens
凸透镜
常用释义
英式发音
美式发音
基本释义
- 凸透镜：至少有一个凸面的透镜，使通过它的光线可以聚焦。
例句
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1·A convex lens is used to concentrate rays of light.凸透镜用于聚集光线。
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2·A single convex lens is used to produce an enlarged image.能够产生放大图像的单个凸透镜。
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3·Just as a double convex lens enlarges so a double concave lens reduces.正象双凸透镜可以放大那样，双凹透镜也可以缩小。
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4·Just AS a double convex lens enlarges, so a double concave lens reduces.正象双凸透镜可以放大那样，双凹透镜也可以缩小。
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5·A convex lens causes rays to converge on a single point, the focal point.会聚透镜使光线会聚于一点，即焦点。
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6·In this paper, a measuring method of convex lens foci in collimator is given.介绍一种测量平行光管内凸透镜焦距的测量方法。
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7·A convex lens is thicker at its center than its periphery. It causes rays to converge.凸透镜中心部分比周围要厚，它使光线会聚。
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8·Two kinds of convex lens which make parallel light rays converge to the focal point are given.本文给出两种能使平行光严格聚焦于一点的凸透镜。
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9·Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.配戴低度凸透镜可降低小学生近视的发生率。
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10·The parallel light rays of the prnicipal axis that approach a convex lens can converge to the focal point.只有在近轴光线条件下，平行光通过凸透镜才可近似聚焦于一点。