Electroluminescent lamp with registration index feature and meth

Details Electroluminescent lamp with registration index feature and meth Electroluminescent lamp with registration index feature and meth

1995-05-23

1996-12-10

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313512, 428917, H01J 162, H01J 6304

Patent

active

055833942

ABSTRACT:
An electroluminescent lamp having an indexing indicium, e.g., a registration mark, located within the lit surface area of the lamp, with the registration mark preferably being transparent to the illumination generated by the lamp when the lamp is lit in use, but being readily detected when selectively activated for providing an alignment point or region on the lamp, such as by activation with ultraviolet light of specific frequency/wavelength characteristics, when the registration mark is formed by deposition on the lamp lit surface of a dot or blob of a composition containing an ultraviolet radiation-fluorescent printing ink.

REFERENCES:
patent: 3395058 (1968-07-01), Kennedy
patent: 4104555 (1978-08-01), Fleming
patent: 4687968 (1987-07-01), Frayer
patent: 5051654 (1991-09-01), Nativi et al.
patent: 5107408 (1992-04-01), Vernondier
patent: 5309060 (1994-05-01), Sharpless et al.

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