| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical fiber strand or optical fiber core wire manufacturing method which can efficiently cure an ultraviolet curable coating material, applied to an outer periphery of a quartz fiber or an optical fiber strand, using an LED.SOLUTION: In an optical fiber strand or optical fiber core wire manufacturing method which applies an ultraviolet curable coating material to an outer periphery of a quartz fiber or an optical fiber strand and irradiates ultraviolet rays to cure the coating material, the ultraviolet irradiation is performed using a plurality of LEDs having different emission wavelengths.SELECTED DRAWING: None |
