Easy and high precision assembly and adjustment of centering of the optical fiber with respect to the illumination optical system. A vibration transmitting member (21) fitting the base end side of the illuminating optical fiber (11), and an illuminating optical fiber (11) fixed to the vibration transmitting body (21) A plurality of piezoelectric elements (23) to be vibrated and positions spaced apart from the piezoelectric element (23) in the vibration transmitting body (21) at intervals are fitted to each other, and the lighting And a fixing portion (25) capable of supporting the optical fiber (11) in a cantilevered manner, wherein the vibration transmitting body (21) has a through hole into which the illumination optical fiber (11) can be inserted, A columnar portion (33) made of an elastic material to which a piezoelectric element (23) is attached, a columnar portion (33) disposed at the tip of the columnar portion (33) and supporting the illumination optical fiber (11) in a fitted state, The tip of the rotating body shape in which the cross-sectional area in the radial direction gradually decreases toward the tip of the fiber (11) Providing an optical fiber scanner (10) having a part (35).照明光学系に対する光ファイバの心出しの組み立て調整を容易かつ高精度にする。照明用光ファイバ(11)と、照明用光ファイバ(11)の基端側を嵌合する振動伝達体(21)と、振動伝達体(21)に固定され、照明用光ファイバ(11)を振動させる複数の圧電素子(23)と、振動伝達体(21)における圧電素子(23)に対して基端側に間隔をあけた位置を嵌合し、振動伝達体(21)を介して照明用光ファイバ(11)を片持ち梁状に支持可能な固定部(25)とを備え、振動伝達体(21)が、照明用光ファイバ(11)を挿入可能な貫通孔を有し複数の圧電素子(23)が貼り付けられた弾性材料からなる柱状部(33)と、柱状部(33)の先端に配されて照明用光ファイバ(11)を嵌合状態に支持し、照明用光ファイバ(11)の先端に向かって径方向の断面積が徐々に縮小する回転体形状の先端部(35)とを有する光ファイバスキャナ(10)を提供する。
