H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/69
H01J 31/50 (2006.01) H01J 29/00 (2006.01)
Patent
CA 1101039
PHN.8701 29.8.77 ABSTRACT: An image intensifier comprises an image intensifier tube which is provided with a mounting ring, having a reference face which occupies a fixed position relative to an entrance window, even in the case of temperature variations. The image intensifier tube is accommodated, with intermediate resilient material, in an envelope having a mounting face for mounting an entrance optical system to be added. When the addition is mounted, the reference face bears against the entrance optical system under spring force exerted by the resilient material and the free entrance window occupies an optimally fixed position. -11-
297630
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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