Continuous curtain rod center for 1/2" EMT conduit

My apartment has long continuous high windows between my living room and the bedroom. This lets a little too much light pass between the rooms. This would be a pretty standard long curtain setup but the window isn't straight. It takes a 90 turn for one pane. I wanted a solution that would allow for a single very wide panel that could be swept around a 90* bend to get it hidden behind the wall when not in use. I didn't much like the cost or aesthetics of a track system like that usually used for