find out whether your CO2 laser lens is : Plano convex lens (Po/Cx) or Meniscus lens (Men)

Ophir demonstrates a simple way to identify a CO2 lens surface (concave, convex or plano) using the len's surface as a mirror. Identify lens surface: find out whether your CO2 laser lens is : Plano convex lens (Po/Cx) or Meniscus lens (Men) 

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