Fluorescent lamp with superimposed luminescent layers

Details Fluorescent lamp with superimposed luminescent layers Fluorescent lamp with superimposed luminescent layers

1976-08-02

1978-05-09

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

H01J 6148

Patent

active

040889238

ABSTRACT:
Electric discharge lamp in which ultraviolet radiation is converted into light by means of two superposed luminescent layers. The two layers have about the same chromaticity point. The luminescent material in the layer more remote from the discharge is cheaper than that in the other layer.

REFERENCES:
patent: 3602758 (1971-08-01), Thornton et al.
patent: 3937998 (1976-02-01), Verstegen et al.

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