Loberg, one idea is to use overhead (on articulated arm) low voltage 'down light' 50watt lights with a very narrow beam angle. (you can source them) That way you get a very directional light that can sit away from your head etc, so you don't get the heat. Mount them away from your lathe so vibration doesn't kill them. Similar to a dentist set up.
The light output is generally not bad (similar to day light and possibly gallery lighting) so your colour will be good also.
Suppliment this/these with overal workshop lighting.
Hope this helps.