The role of electronic and optical microscope lens in the optical lens effect is the same.

电子透镜的作用与光学显微镜中的光学透镜的作用是一样的。

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A negative lens effect induced by strong laser field in liquid phase of. Liquid crystals is described.

本文介绍了液相液晶中强激光场引起的负透镜效应。

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The aerodynamic lens effect of laser beam through aerodynamic window is investigated and the conclusion is provided.

研究了自由涡射流对透射激光产生的气动透镜效应，给出了计算结果。

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Perhaps its greatest moment came in 1979 when it was the first telescope to observe a gravitational lens, an effect where a "massive" object bends electromagnetic radiation such as light around it.

BBC: Aye to the telescope

This is that a lens produces its biggest effect when it is halfway between source and observer.

ECONOMIST: Cosmology: I spy with my little gravitational lens | The

Television makers, including the TCL Corporation, have demonstrated this effect by adding a lens of sorts to the front of their TV screens.

CNN: Nintendo unveils handheld 3-D gaming system