搜索 - 科创

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的帖子 :但是问题在于He-Ne的管子本身效率就不高，一般几mW的管子高压电流也有几mA，这里假设是峰值电流5.25mA，那么这个脉冲功率只能说非常非常弱，还不如某些CW的He-Ne管子 He-Ne激光都是连续波的

居然敢卖,这东西比真火更容易出事玩激光的准备绝版收藏吧一家出事,全国河蟹引用第8楼power_rdx于2009-03-21 13:27发表的 :星战里那玩意儿不是激光，官方的资料给的是等离子束。

小心哥哥打你们PP哦光路折返一下还有个优点是桌面会把光线散射开，反射到键盘上的光线就会比较温和均匀了，如果直接从上面往下照，即使是散射型的灯也会形成明显的光圈，看起来很耀眼，而光圈外面的东西则又看不清楚

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