Variable intensity fluorescent display

Details Variable intensity fluorescent display Variable intensity fluorescent display

1976-11-08

1978-04-04

Borchelt, Archie R.

Radiant energy

Record projectors

250504, G03B 2100

Patent

active

040829499

ABSTRACT:
A variable intensity fluorescent display, utilizing fluorescent segments for forming indicia when irradiated by an ultraviolet lamp, utilizes a separate source of infrared light, such as a variable intensity incandescent lamp and deep red, or infrared, filter and the like to provide quenching action in the fluorescent material in a controlled manner.

REFERENCES:
patent: 2996617 (1961-08-01), Heckscher
patent: 3015731 (1962-01-01), VAN Santen et al.
patent: 3207898 (1965-09-01), Linsley
patent: 3621249 (1971-11-01), Kikumoto

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