| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact light guide unit that is provided with a light guide member facilitating an adjustment of a rotation angle position, and facilitates assembly of the light guide unit to various devices.SOLUTION: A light guide unit 300 has: a light guide member 175 that has an incident port and emission port of light; a main body part 320 that surrounds a periphery side surface of the light guide member 175; and an adjustment anchoring plate 360 that includes a top plate part 361 provided on an upper surface of the main body part 320 and a rear plate part 381 drooping from a rear end of the top plate part 361 and holding an emission port side of the light guide member 175. The adjustment anchoring plate 360 has the top plate part 361 of the adjustment anchoring plate 360 anchored with a clearance provided between the upper surface of the main body part 320 and the top plate part 361, and on a rear end side of the top plate part 361, the adjustment anchoring plate has a cap screw 397 that makes the clearance between the upper surface of the main body part 320 and the top plate part adjustable. By the cap screw 397, the clearance between the main body part 320 and the top plate part is adjusted to cause the rear end of the top plate part 361 to be twisted with respect to a front end of the top plate part 361 which is the incident port side of the light guide member 175, and the rear plate part 381 is made rotatable. |
