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IP.com Disclosure Number: IPCOM000010315D
Publication Date: 2002-Nov-20

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During operation of many UV lamps or an integrated sphere together with a UV lamp, ozone is generated. Ozone absorbs UV light, resulting in decreased UV intensity. We have found that blowing N2 gas on to an Hg lamp or in an integrated sphere together with an Hg lamp, ozone generation from the lamp may be avoided or at least reduced and enhance the intensity, uniformity and stability of UV light from the lamp. The light intensity was enhanced by as much as a factor of 8.