US 12,216,293 B2
Prism apparatus and camera apparatus including the same
Hyungjoo Kang, Seoul (KR); Kwanhyung Kim, Seoul (KR); Dongryeol Lee, Seoul (KR); and Samnyol Hong, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/292,335
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Nov. 8, 2019, PCT No. PCT/KR2019/015188
§ 371(c)(1), (2) Date May 7, 2021,
PCT Pub. No. WO2020/096423, PCT Pub. Date May 14, 2020.
Claims priority of application No. 10-2018-0137510 (KR), filed on Nov. 9, 2018.
Prior Publication US 2022/0004018 A1, Jan. 6, 2022
Int. Cl. G02B 27/64 (2006.01); G02B 3/14 (2006.01); G02B 7/18 (2021.01)
CPC G02B 27/646 (2013.01) [G02B 3/14 (2013.01); G02B 7/1805 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A prism apparatus comprising:
a prism configured to reflect input light toward a first reflected direction;
a first actuator configured to change an angle of the prism about a first rotation axis to change the first reflected direction based on a first control signal;
a lens configured to output the light reflected by the prism toward a second reflected direction; and
a second actuator configured to change an angle of the lens about a second rotation axis to change the second reflected direction based on a second control signal,
wherein in response to a movement causing rotation of the prism about the first rotation axis by a first angle and rotation of the lens about the second rotation axis by a second angle, the first actuator is configured to rotate the prism in a third direction opposite the first reflected direction by a third angle in response to the first control signal, and the second actuator is configured to rotate the lens in a fourth direction opposite the second reflected direction by a fourth angle in response to the second control signal.