公开(公告)号：US20220365338A1

公开(公告)日：2022-11-17

申请号：US17743457

申请日：2022-05-13

Applicant: Stanley Electric Co., Ltd.

Inventor： Tomotaka ASARI

IPC: G02B26/08 ,  G02B26/12 ,  B81B3/00

Abstract: A light deflector 2 includes: a mirror section 9 that reflects light; a movable frame 8 provided in such a manner as to surround the mirror section 9; a pair of torsion bars 13a and 13b having one end of each torsion bar connected to the mirror section 9 and the other end thereof connected to the movable frame 8 on a Y-axis; and semi-annular piezoelectric actuators 10a and 10b that are provided on the movable frame 8 and rotate the torsion bars 13a and 13b around the Y-axis in a reciprocating manner. The torsion bars 13a and 13b each have a constricted shape in which the transverse width at both end parts is the largest and the transverse width gradually decreases toward the central part thereof in a length direction.

公开(公告)号：US20190258049A1

公开(公告)日：2019-08-22

申请号：US16278149

申请日：2019-02-17

Applicant: STANLEY ELECTRIC CO., LTD.

Inventor： Makoto SAKURAI ,  Takaaki KOYAMA ,  Tomotaka ASARI

IPC: G02B26/08 ,  G02B26/10

Abstract: A light deflector 1 includes a reflector (2), inner piezoelectric actuators (4), an inner frame (5), outer piezoelectric actuators (6), and an outer frame (7). The reflector (2) is oscillated about a first axis Ua and a second axis Ub by the inner piezoelectric actuators (4) and the outer piezoelectric actuators (6), respectively. Formed on the rear surface of the light deflector 1 is a projecting rib (52), which projects from an encircling rib (51) of the inner frame (5) and reaches a corner portion (36) of a distal end portion of a piezoelectric cantilever (13a). A vertical side (22b) has an outer recess (35). The outer recess (35) extends along the projecting rib (52) in a portion of the distal end side of the piezoelectric cantilever (13a).