A new method for measuring He-Ne laser power by using illuminometer is introduced in this paper.
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本文介绍了四束激光扫描照排机，照排机内安装有四支氦氖激光器及四个声光调制器。
This paper describes a phototypesetter with four scanning laser beams. There are four He-Ne Lasers and four acoustooptic modulators in the phototypesetter.
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