Fluorescent lamp having phosphor layer

Details Fluorescent lamp having phosphor layer Fluorescent lamp having phosphor layer

2005-12-20

2005-12-20

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S635000

Reexamination Certificate

active

06977462

ABSTRACT:
An object of the present invention is to provide a fluorescent lamp including: a hermetically sealed lamp vessel; and a phosphor layer attached to a part of an inner surface of the lamp vessel, where a thickness of the phosphor layer near an edge thereof gradually and smoothly decreases towards the edge.

REFERENCES:
patent: 5227693 (1993-07-01), Sakakibara et al.
patent: 5512798 (1996-04-01), Honda
patent: 48-98985 (1973-11-01), None
patent: 54082874 (1979-07-01), None
patent: 07021820 (1995-01-01), None
patent: 09073884 (1997-03-01), None
patent: 09-190802 (1997-07-01), None
patent: 10-312777 (1998-11-01), None
patent: 10-321194 (1998-12-01), None
patent: WO 2003046946 (2003-06-01), None

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