Multi-digit fluorescent indicating apparatus

Details Multi-digit fluorescent indicating apparatus Multi-digit fluorescent indicating apparatus

1976-04-19

1977-09-06

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313519, H01J 61067, H01J 6166

Patent

active

040470733

ABSTRACT:
A multi-digit fluorescent indicating apparatus and a manufacturing method therefor are disclosed. The indicating apparatus includes an enclosure, formed by sealing a base plate and an upper surface window plate together, and containing one or more segmented electrodes of fluorescent material coated on the base plate. In the manufacturing method, various lead-in wires for grids and cathodes as well as spacers for grids are formed from a single metal plate, facilitating easy connection to external circuits and improving compactness lightness and reliability as well as reducing manufacturing costs.

REFERENCES:
patent: 3786295 (1974-01-01), Fujii et al.
patent: 3800178 (1974-03-01), Farina
patent: 3836806 (1974-09-01), Kobayakawa et al.
patent: 3864593 (1975-02-01), Kasano

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