Wikipedia links a page from "Springer Handbook of Glass" [0], which shows a diagram of the typical construction of a CRT tube. The lead glass is only used for t

Wikipedia links a page from "Springer Handbook of Glass" [0], which shows a diagram of the typical construction of a CRT tube. The lead glass is only used for the sides and back, with barium+strontium glass used for the front. It looks like use of lead glass is only a cost optimization, and the whole thing could be made from barium+strontium glass. As there is no other technology that matches CRT latency and motion quality when used with fixed 60Hz content (e.g. most console/arcade games), it should be possible to sell new CRTs at high enough price to make this viable. [0] https://books.google.com/books?id=-ka9DwAAQBAJ&pg=PA1367 https://books.google.com/books?id=-ka9DwAAQBAJ&pg=PA1367