| 摘要 |
PROBLEM TO BE SOLVED: To easily correct delicate troubles in an irradiation line and an irradiation angle and change the irradiation angle in a line-type lightguide during the manufacture or use. SOLUTION: A required number of screw holes, which penetrate orthogonally to the irradiation line and reach a core 2 are tapped at required places of a side plate bottom part 1 of an irradiation metallic fixture, a set screw 7 is attached, the set screw is rotated and the core is pressed, and whereby held and stuck optical fiber is pushed and is moved slightly. thus, delicate troubles in the irradiating line are corrected. Also, the irradiating angle is corrected and changed by forming the core 2 and a core holding part 4 into a shape and a structure, such that the core is slightly rotated and moved via a core beak part 3.
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