Eli5: Why do cinema projectors still use xenon lamps?

Question

Why do they still use xenon lamps, even though LEDs are more efficient.

In: Technology

Answer 1

not all cinema projectors use xenon lamps.. the problem is most of the “industrial” sized projectors are really expensive, and you’d want to eek out everything from that investment before buying a new one. newer cimena’s mostly have some variation of laser based projection – they are better than LED in contrast and brightness that LED or Zenon’s cant match.