| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultraviolet-ray irradiation device effectively irradiating an ultraviolet-ray of 300 to 400 nm on a target by efficiently condensing the ultraviolet-ray of 300 to 400 nm suitable for ultraviolet curing on a light incident opening of a micro-fiber of 5 mmϕor less without using a cut filter for cutting an ultraviolet-ray with a harmful wave length of 300 nm or shorter. SOLUTION: A pair of tungsten electrodes distant from each other by 0.5 to 1.8 mm are arranged in a discharge container made of quartz glass, and 0.08 to 0.30 mg/mm3 of mercury, rare gas, and halogen are sealed in the discharge container. The ultraviolet-ray irradiation device is composed of a high pressure mercury lamp effectively irradiating ultraviolet-ray of 300 to 400 nm, and a light condensing means condensing light emitted from the high pressure mercury lamp, and irradiates the ultraviolet-ray of 300 to 400 nm on the object to be irradiated by condensing the ultraviolet-ray on an area of 5 mmϕor less by the light condensing means. COPYRIGHT: (C)2006,JPO&NCIPI
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