US 12,135,416 B2
Light deflector, distance measuring device, projection device, and mobile object
Tetsumaru Fujita, Hyogo (JP); Masayuki Fujishima, Kanagawa (JP); Junichi Konishi, Hyogo (JP); and Hidenori Kato, Hyogo (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Tetsumaru Fujita, Hyogo (JP); Masayuki Fujishima, Kanagawa (JP); Junichi Konishi, Hyogo (JP); and Hidenori Kato, Hyogo (JP)
Filed on Jun. 17, 2021, as Appl. No. 17/350,089.
Claims priority of application No. 2020-106589 (JP), filed on Jun. 19, 2020; and application No. 2021-073478 (JP), filed on Apr. 23, 2021.
Prior Publication US 2021/0396994 A1, Dec. 23, 2021
Int. Cl. G02B 26/08 (2006.01); G02B 26/10 (2006.01); G01S 17/89 (2020.01)
CPC G02B 26/0858 (2013.01) [G02B 26/101 (2013.01); G02B 26/105 (2013.01); G01S 17/89 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A light deflector comprising:
a movable device including a movable portion;
a drive unit configured to drive the movable device;
an input wiring board configured to apply electric power from the drive unit to the movable device;
an anisotropic conductive resin film through which the input wiring board is connected to multiple input parts; and
wiring disposed in the movable portion,
the movable device further including:
a pair of drive beams, the movable portion including a reflector disposed between the pair of drive beams, the pair of drive beams supporting the movable portion to allow the movable portion to oscillate around an oscillation axis, each of the pair of drive beams including a beam member and an actuator;
a pair of supporting parts supporting the pair of drive beams, at least one of the pair of supporting parts including the multiple input parts to which electric power is input from the input wiring board; and
a mount unit secured to the pair of supporting parts,
the multiple input parts including a first input part and a second input part arranged at both ends in an arrangement direction in which the multiple input parts are arranged, and a third input part arranged between the first input part and the second input part, and
one of the pair of drive beams being connected, through the wiring, to the third input part in a state in which the wiring directly contacts the third input part without directly contacting the first input part and the second input part.