To provide a ultraviolet sterilizer, a low pressure mercury lamp base, and a low pressure mercury lamp sterilizer, in which the ultraviolet sterilizer does not deteriorate the intencity of ultraviolet ray even in a low temperature water to be treated, or under a low temperature environment.
The low pressure mercury lamp sterilizer has electrodes in both end of a light emission tube. The low pressure mercury lamp having a base connected on both sides of the light emission tube is contacted to a transparent jacket covering the low pressure mercury lamp through the base. The jacket is surrounded with a low temperature environment. The heat in a low temperature environment is suppressed to affect the inner end portion of the light emission tube through the jacket.
SHIBATA YOSHIHISA
TAKAHASHI HIROKI
INOUE MASANOBU
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