| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultraviolet irradiation device which can quickly cure a UV curing type ink adhered on a recording medium, without thermally damaging the recording medium. SOLUTION: This ultraviolet ray irradiation device 90 irradiates the UV curing type ink adhered on the recording medium P with ultraviolet rays. The device 90 has a plurality of semiconductor light-emitting elements 95, 96, and 97 for emitting ultraviolet rays and an element supporting means 91 for supporting the semiconductor light emitting elements 95, 96, and 97. The element supporting means 91 is arranged to support them such that they are in a positional relation. In the positional relation, the plurality of semiconductor light-emitting elements 95, 96, and 97 respectively have mutually inclined optical axes b1, b2, and b3 such that the irradiation areas of the ultraviolet rays emitted from the plurality of semiconductor elements 95, 96, and 97 are overlapped on the recording medium P. COPYRIGHT: (C)2006,JPO&NCIPI
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