High-pressure mercury vapor lamp incorporating a...

Details High-pressure mercury vapor lamp incorporating a... High-pressure mercury vapor lamp incorporating a...

2005-01-05

2010-06-08

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

With particular gas or vapor

C313S637000, C313S638000

Reexamination Certificate

active

07733027

ABSTRACT:
A high-pressure mercury vapor lamp suitable for sterilization purposes. Germanium and oxygen are added in small quantities to the mercury and/or the mercury halides, with a molar ratio of germanium to oxygen being greater than 1. The addition of germanium monoxide increases the GAC efficiency (GAC: short for Germicidal Action Curve) of a high-pressure mercury vapor lamp, because germanium monoxide emits a strong molecular band system in the range from 250 to 280 nm.

REFERENCES:
patent: 653878 (1900-07-01), Pevey
patent: 3764843 (1973-10-01), Van Eiji et al.
patent: 3868525 (1975-02-01), Waymouth et al.
patent: 4274029 (1981-06-01), Buxbaum
patent: 4918352 (1990-04-01), Hess et al.
patent: 5109181 (1992-04-01), Fischer et al.
patent: 5212424 (1993-05-01), Russell et al.
patent: WO 02101789 (2002-12-01), None

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