Luminous lamp having an ultraviolet filtering and explosion...

Details Luminous lamp having an ultraviolet filtering and explosion... Luminous lamp having an ultraviolet filtering and explosion...

2008-07-01

2008-07-01

Williams, Joseph L (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S112000, C313S025000

Reexamination Certificate

active

07394190

ABSTRACT:
A luminous lamp having an ultraviolet filtering and explosion-proof thin film is disclosed. An outside of a lamp is coated by a transparent layer which comprises phosphor powder. Energy generated by the lamp is absorbed by the phosphor powder while the lamp is shining. The phosphor powder would release energy to shot brilliance, so as to provide auxiliary lighting after turning off the lamp. Additionally, the phosphor powder can absorb harmful ultraviolet and other harmful radiations with shorter wavelengths to be one part of the thin film for filtering harmful radiations. The harmful ultraviolet can be transformed by the phosphor powder into visible light to red shift radiations with short wavelengths; hence the harmful radiations with shorter wavelengths can be eliminated. The illumination of visible light can be further increased. The transparent layer can catch broken fragments of the outside of the lamp to decrease accidents when the lamp is broken.

REFERENCES:
patent: 2900545 (1959-08-01), Rulon et al.
patent: 5418062 (1995-05-01), Budd
patent: 6819049 (2004-11-01), Bohmer et al.
patent: 6888302 (2005-05-01), Juestel et al.
patent: 07226191 (1995-08-01), None

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