Fluorescent lamp having reflective layer and a method for fabric

Details Fluorescent lamp having reflective layer and a method for fabric Fluorescent lamp having reflective layer and a method for fabric

1979-10-31

1982-06-22

Karlsen, Ernest F.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313113, 313488, H01J 6135, H01J 6148

Patent

active

043364799

ABSTRACT:
A fluorescent lamp with reflective layer of the present invention has a first phosphor layer and a second phosphor layer which are partially laminated. The first phosphor layer is formed on the whole inner surface of the glass tube, and the second phosphor layer is formed on the first phosphor layer at a predetermined angle of reflection along the axial direction of the glass tube. The laminated portions of the first and second phosphor layers substantially form a reflective layer, and the other portions form a transmitting layer.

REFERENCES:
patent: 2854600 (1958-09-01), van de Weijer et al.
patent: 3442582 (1969-05-01), Lahr
patent: 4088923 (1978-05-01), Manders
patent: 4099090 (1978-07-01), Corth et al.

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