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|1. (WO2017183157) OPTICAL FIBER SCANNER, ILLUMINATION DEVICE, AND OBSERVATION DEVICE|
|Title:||OPTICAL FIBER SCANNER, ILLUMINATION DEVICE, AND OBSERVATION DEVICE|
An optical fiber scanner (1) is provided with the following: an optical fiber (2); an elastic member (3) which is fixed to the outer circumferential surface of the optical fiber (2) and which covers a longitudinal-direction portion of the optical fiber (2); piezoelectric elements (4A, 4B, 4C) which are fixed to the outer surface of the elastic member (3); and an insertion portion (7) which is formed in the elastic member (3) from the distal end surface thereof to the base end surface thereof, which has an opening on the radial outer side of the optical fiber (2), and into which a longitudinal-direction portion of the optical fiber (2) is disposed.