H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/4, 313/9
H01J 7/26 (2006.01) H01J 29/00 (2006.01)
Patent
CA 1274577
PHN. 11.441 ABSTRACT: In a known display tube, in particular for projection television, cooling is used by causing a cooling liquid to flow laminarly between the display window and a second window. An important improve- ment of the cooling is obtained according to the invention by cooling the heated cooling liquid in a cooling system beyond the light path and returning it via a space between the second window and a third window to the space between the display window and the second window.
513394
Geujen Cornelis H.m.
Van de Ven Johannes C.
Fetherstonhaugh & Co.
Geujen Cornelis H.m.
N.v. Philips Gloeilampenfabrieken
Van de Ven Johannes C.
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