US 11,809,015 B2
Optical system
Yi-Ho Chen, Taoyuan (TW); Ying-Jen Wang, Taoyuan (TW); and Ya-Hsiu Wu, Taoyuan (TW)
Assigned to TDK TAIWAN CORP., Taoyuan (TW)
Filed by TDK TAIWAN CORP., Taoyuan (TW)
Filed on Aug. 27, 2021, as Appl. No. 17/459,819.
Claims priority of provisional application 63/071,550, filed on Aug. 28, 2020.
Prior Publication US 2022/0066123 A1, Mar. 3, 2022
Int. Cl. G02B 7/04 (2021.01); G03B 5/02 (2021.01); G02B 7/02 (2021.01); G02B 27/64 (2006.01); G02B 13/00 (2006.01); G02B 26/08 (2006.01); G02B 7/00 (2021.01); G01L 1/16 (2006.01); G06F 3/01 (2006.01); H03K 17/96 (2006.01); G03B 5/00 (2021.01); G03B 17/12 (2021.01); H02K 41/035 (2006.01); G02B 7/09 (2021.01); G02B 27/00 (2006.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); H04N 23/68 (2023.01); H10N 30/30 (2023.01); G02B 7/182 (2021.01)
CPC G02B 7/04 (2013.01) [G01L 1/16 (2013.01); G02B 7/003 (2013.01); G02B 7/02 (2013.01); G02B 7/09 (2013.01); G02B 7/1821 (2013.01); G02B 13/001 (2013.01); G02B 26/0816 (2013.01); G02B 26/0875 (2013.01); G02B 27/0006 (2013.01); G02B 27/646 (2013.01); G03B 5/00 (2013.01); G03B 5/02 (2013.01); G03B 17/12 (2013.01); G06F 3/016 (2013.01); H02K 41/0354 (2013.01); H03K 17/964 (2013.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); H04N 23/685 (2023.01); H10N 30/302 (2023.02); G03B 2205/0069 (2013.01); H02K 41/0356 (2013.01); H03K 2217/96062 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical system, comprising:
a movable part, connected to an optical element;
a fixed part, wherein the movable part is movably connected to the fixed part;
a driving assembly, driving the movable part to move relative to the fixed part;
a first sensor, generating a first sensing value by detecting the movement of the movable part relative to the fixed part in a first dimension;
a second sensor, generating a second sensing value by detecting the movement of the movable part relative to the fixed part in a second dimension; and
a control unit, electrically connected to the first and second sensors and generating a first error value according to the first sensing value and a first error curve, wherein the control unit calibrates the second sensing value according to the first error value and then transmits a driving signal to the driving assembly, thereby driving the movable part to move relative to the fixed part;
wherein the first error curve represents the relationship between the second sensing value generated by the second sensor and the first dimension when the movable part moves relative to the fixed part only in the first dimension.