Heat sink means for a projection television cathode ray picture are disclosed. The tube has a face plate on the inner surface of which is deposited a cathodoluminescent screen for forming a television image. The face plate develops an undesirably high temperature during operation resulting in cracking....http://www.google.com/patents/US4388642?utm_source=gb-gplus-sharePatent US4388642 - Heat sinking means and method for projection television CRTs
