Title:
GUIDE-FREE IMAGE SENSOR ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2022/260253
Kind Code:
A1
Abstract:
A guide-free image sensor actuator according to an embodiment of the present invention comprises: a carrier in which an image sensor is provided and which moves relative to a plane perpendicular to the optical-axis direction; first and second magnets which are mounted to the carrier at positions orthogonal to each other; a sensing magnet which is mounted to the carrier; first and second Hall sensors which are opposite to the first and second magnets respectively; a rotation-sensing Hall sensor which is opposite to the sensing magnet; n (n is a natural number equal to or greater than 2) first coils which are opposite to the first magnet; m (m is a natural number equal to or greater than 1) second coils which are opposite to the second magnet; and an operation driver which controls the magnitude and direction of a current applied to at least one of the n first coils and the m second coils by using output signals of two or more of the first Hall sensor, the second Hall sensor, and the rotation-sensing Hall sensor.
Inventors:
GO JAE YONG (KR)
Application Number:
PCT/KR2022/004571
Publication Date:
December 15, 2022
Filing Date:
March 31, 2022
Export Citation:
Assignee:
JAHWA ELECTRONICS CO LTD (KR)
International Classes:
H04N5/232; H02K11/215; H02K11/33; H02K33/18; H04N5/225
Foreign References:
| KR101579586B1 | 2015-12-22 | |||
| KR20200113748A | 2020-10-07 | |||
| KR101804921B1 | 2018-01-10 | |||
| KR102009197B1 | 2019-08-09 | |||
| US20190196139A1 | 2019-06-27 |
Attorney, Agent or Firm:
JEONG, Young Chan (KR)
Download PDF: