Melles Griot HeNe Laser Tube (Unknown P/N) 
Written by AnubisTTP on 2008-12-22  

Description

This is an example of an older low power 'hard seal' helium neon laser tube. Unlike early 'soft seal' helium-neon lasers, this tube has its mirrors permanently fused to the glass envelope, which prevents the helium from escaping over time. A hard seal tube can be expected to hold its gas for several decades, as opposed to the one- to three-year lifespan of the average soft seal tube. The exact power output of this unit is unknown, but is probably at or below 1mW.

Photos


Melles Griot HeNe Laser Tube (Unknown P/N)

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