Flat envelope type fluorescent character indicating tube with ge

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

1976-12-13

1977-08-30

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313513, 313181, H01J 1912, H01J 1970, H01J 6302

Patent

active

040457036

ABSTRACT:
In a flat 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.

REFERENCES:
patent: 3197546 (1965-07-01), Hopper, Jr.
patent: 3619694 (1971-11-01), Tanji

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