Application of insulation to ride frame of vacuum fluorescent di

Details Application of insulation to ride frame of vacuum fluorescent di Application of insulation to ride frame of vacuum fluorescent di

1980-04-10

1982-06-29

Anderson, Bruce C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

H01J 162, H01J 6304

Patent

active

043374115

ABSTRACT:
The invention relates to vacuum fluorescent devices having a grid element positioned between the filament and fluorescent anodes of the device. An insulating material on a portion of the grid is effective to reduce grid current and to enable achievement of greater brightness of fluorescence from the fluorescent anodes.

REFERENCES:
patent: 4132920 (1979-01-01), Kobayakawa et al.
patent: 4214025 (1980-07-01), Nixon
patent: 4223244 (1980-09-01), Kishino et al.

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