Luminous pointer and manufacturing method thereof

Details Luminous pointer and manufacturing method thereof Luminous pointer and manufacturing method thereof

1990-09-10

1992-05-26

Rowan, Kurt

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

427 66, 29412, 445 52, 445 58, H01J 922, H01J 926

Patent

active

051162709

ABSTRACT:
An insulating layer, a luminescent layer, a transparent electrode, base sheet with a transparent electrode formed thereon and a desiccant film are laminated in that order on the upper surface of a pointer body which also serves as a rear electrode. The upper surface of the dessiccant film is sealed with a moistureproof film. In producing a luminous pointer, these layers are laminated at a plurality of portions on the upper surface of a sheet which is to constitute pointer bodies, the pointer bodies are blanked along the outlines thereof by press working, and then the outside of the disiccant film is sealed with a moistureproof film. Alternatively, the outside of the desiccant film may be sealed with a moistureproof film before blanking the pointer bodies by press working.

REFERENCES:
patent: 2922912 (1960-01-01), Miller
patent: 3219008 (1965-11-01), Harris et al.
patent: 3243629 (1966-03-01), Levetan
patent: 3295002 (1966-12-01), Amans
patent: 3378715 (1968-04-01), Thornton
patent: 3868756 (1975-03-01), Zumbach
patent: 4104555 (1978-08-01), Fleming
patent: 4357557 (1982-11-01), Inohara et al.
patent: 4708914 (1987-11-01), Kamijo
patent: 4839558 (1989-06-01), Mierzwinski
patent: 4882517 (1989-11-01), Maruyama et al.

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