WATER PURIFICATION APPARATUS
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United States of America Patent
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app pub date -
Nov 3, 2015
filing date -
May 30, 2013
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Abstract
In a water purification apparatus, a light source irradiates the water, passing through the flow passage, with ultraviolet light. The light source has a light emitting diode that emits the ultraviolet light whose wavelength is contained in a bandwidth of 220 nm or above to less than 300 nm, and the optical output in this wavelength bandwidth is in a range of 1 W to 50 W. The flow passage passes the water at a flow rate of 5 mL/second to 250 mL/second. The flow passage is formed by a wall surface having a tubular shape. A window through which the ultraviolet light is passed is provided in at least part of the wall surface.
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