Richard Clark wrote:
Cecil Moore wrote:

the wavelength doesn't matter so 632.8 nm might be a logical popular choice.

2. a popular choice? This conjecture is broadly announced with the
characteristic couching of terms "might be" to hedge the answer.

Actually, I got that wavelength from _Optics_, by Hecht.
Hecht says: "The He-Ne laser is still among the most popular
devices of it kind, ... (632.8 nm)." So your argument is with
Hecht, not with me. Good luck on that one.
--
73, Cecil http://www.qsl.net/w5dxp

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