Flat envelope type fluorescent character indicating tube

Details Flat envelope type fluorescent character indicating tube Flat envelope type fluorescent character indicating tube

H - Electricity

01

J

313/80

H01J 1/62 (2006.01) H01J 7/18 (2006.01) H01J 31/15 (2006.01)

Patent

CA 1043847

TITLE OF THE INVENTION: A FLAT ENVELOPE TYPE FLUORESCENT CHARACTER INDICATING TUBE ABSTRACT OF THE DISCLOSURE In a flat envelope type fluorescent character indicating tube wherein a plurality of digit indicating elements are arranged in an evacuated envelope, there is provided a getter support structure located adjacent one end of the envelope. The getter support structure includes a shield plate extending toward the inner surface of the envelope to minimize distribution of the getter film toward the location of the digit indicating elements. At least one filament is extended above the digit indicating elements and its one end is secured to the getter support structure at a location beyond the shield plate.

247193

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