Talk:Babinet's principle

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About Class 1 Lasers[edit]

"N.B., take care to use a low-powered laser (class 1 only) "

Where am I to find one of these class 1 lasers? I don't think I've ever seen a class 1 laser. Laser pointers are usually class 2 or 3B. Now I'm all for safety, but isn't this a bit excessive? -- Tim Starling 13:24, Dec 23, 2003 (UTC)

Untitled[edit]

"In places where the undisturbed beam would not have reached, this means that the radiation patterns caused by B and B' must be opposite in phase, but equal in amplitude."

I think the author meant "In places where the undisturbed beam would have reached, .... " Rdankwort (talk) 01:02, 14 March 2015 (UTC)

(I don't have any sources. The author either agrees or does not.)