Lumicon actually closed their doors in 2003. The name was resurrected by entities who acquired the remaining inventory and there was quite a legal battle over the Lumicon name. To this day I'm not sure if it's still settled.
I believe Farpoint wound up with it. I still have a nice Japanese-made 1.25” prism star diagonal that’s a Lumicon. It’s a nice diagonal. I’ve had it about 20 years. I also still have a couple of Lumicon planetary filters.