US 12,313,842 B2
Scanner and electronic device having same
Byounggoo Lee, Seoul (KR); Joodo Park, Seoul (KR); Jaeyong An, Seoul (KR); and Sangcheon Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/755,062
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Oct. 25, 2019, PCT No. PCT/KR2019/014216
§ 371(c)(1), (2) Date Apr. 20, 2022,
PCT Pub. No. WO2021/080059, PCT Pub. Date Apr. 29, 2021.
Prior Publication US 2022/0373787 A1, Nov. 24, 2022
Int. Cl. G02B 26/08 (2006.01); G02B 26/10 (2006.01)
CPC G02B 26/10 (2013.01) [G02B 26/0816 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A scanner, comprising:
a mirror to rotate around a first axis based on a direct drive mechanism;
a substrate separated from the outside of the mirror;
a first and a second mirror support member connected respectively to a first side and a second side of the mirror;
a first and a second mirror spring connected respectively to the first and second mirror support members; and
a plurality of combs formed on the substrate and to supply a rotational force based on electrostatic force to the mirror,
wherein the substrate includes a first edge and a second edge closer to the mirror than the first edge and placed at a lower position than the first edge, the optical interference angle at the second edge is greater than the optical interference angle at the first edge,
wherein magnitude of a rotation angle relative to the second axis intersecting the first axis ranges from 25 degrees to 40 degrees in response to the mirror rotating around the first axis.