What would you expect to be in this category? (Assuming you have no knowledge of oscilloscopes) –moogsi (blah) 20:14, 23 April 2013 (UTC)
Exactly what's in it. Why wouldn't I? It's not a well-known term, but it is a real and sourceable term for just the sort of diagram shown here.
If we need to disambiguate this from "diagrams of eyes", then we can do that as and when it's needed, not before. Mind you, they would probably be under Category:Diagrams of eyes anyway. Andy Dingley (talk) 19:37, 7 June 2013 (UTC)
As Andy said Keep, despite this type of diagrams is named "eye pattern" in English Wikipedia.--Torsch (talk) 10:18, 15 June 2013 (UTC)