| 摘要 |
PROBLEM TO BE SOLVED: To provide a light irradiation device capable of effectively emitting ultraviolet light even in a narrow part.SOLUTION: In a light irradiation device, a long body 20 has elastically restorable flexibility. An LED chip 10 is tightly fixed to a tip 22 of the long body 20 and emits ultraviolet light. A covering part 12 covers and protects the LED chip 10, while passing therethrough the ultraviolet light emitted from the LED chip 10. A conductive part 24 extends in a longitudinal direction of the long body 20 and flows a current for causing the LED chip 10 to emit light. An insulating part 26 covers the conductive part 24 and ensures electrical insulation for the conductive part 24. A bending mechanism may be further provided which is arranged in the vicinity of the tip 22 for bending the vicinity of the tip 22. In addition, a control part may be further provided which can control, from an end on an opposite side to the tip 22 of the long body 20, the bending direction by the bending mechanism. |
