Patents Assigned to MICRO ACTUATOR CO., LTD.
-
Patent number: 12392989Abstract: Disclosed are an optical path changing unit and a lens assembly comprising same. The optical path changing unit comprises: a base; a prism unit a part of which is connected to the base and the other part of which is arranged to be movable within the base; and first to third optical image stabilizing (OIS) drive units which change the prism unit into a tiltable position.Type: GrantFiled: September 18, 2020Date of Patent: August 19, 2025Assignee: MICRO ACTUATOR CO., LTD.Inventors: Dae Soon Lim, Hak Ku Yoon, Myung Won Choi, Dong Sung Lee
-
Patent number: 12132988Abstract: Disclosed is a lens assembly. The disclosed lens assembly comprises: a base; a lens unit which is disposed on one side inside the base and moves forward or rearward in the length-wise direction of the base; an optical path changing unit which is disposed on the other side inside the base, and has a portion fixed to the base and the other portion disposed to be movable inside the base; an auto focusing (AF) drive unit that moves the lens unit forward or rearward; and first and second optical image stabilizing (OIS) drive units that move the optical path changing unit in a tiltable posture.Type: GrantFiled: June 16, 2021Date of Patent: October 29, 2024Assignee: Micro Actuator Co., Ltd.Inventors: Dae Soon Lim, Hak Ku Yoon, Myung Won Choi
-
Patent number: 11474320Abstract: The disclosure relates to a micro lens assembly including; a base; a support inserted into the base to be movable in an optical axis direction; a driver for auto focus adjustment configured to move the support in the optical axis direction; a lens unit inserted into the support and including a lens barrel to which a lens part is coupled; a driver for optical image stabilization configured to move the lens unit in the direction perpendicular to the optical axis direction; a plurality of ball bearings arranged between the support and the base for the support to be movable with respect to the base in the optical axis direction; and a plurality of connection members configured to connect the lens unit and the support to each other for the lens unit to be movable with respect to the support and formed of an elastic nonconductor.Type: GrantFiled: June 3, 2019Date of Patent: October 18, 2022Assignee: MICRO ACTUATOR CO., LTD.Inventors: Dae Soon Lim, Hak Ku Yoon, Myung Won Choi, Dong Sung Lee
-
Publication number: 20210132329Abstract: An auto focusing apparatus according to the present invention comprises: a base having an accommodation groove; a lens carrier provided in the accommodation groove of the base; a magnet provided on one surface of the lens carrier; a coil provided to the base so as to face the magnet; a main ball accommodation part formed in a corner of one side of the inner surface of the base facing the magnet on the lens carrier; a sub-ball accommodation part which is provided on the inner surface of the base, on which the main ball accommodation part is not formed, and which supports the other surface of the lens carrier, on which the magnet is not provided; a guide protrusion which is provided on the lens carrier at one side of the magnet and which protrudes toward the main ball accommodation part; and a plurality of balls provided between the main ball accommodation part and the guide protrusion and between the sub-ball accommodation part and the other surface of the lens carrier, wherein one ball is provided between theType: ApplicationFiled: June 18, 2019Publication date: May 6, 2021Applicant: MICRO ACTUATOR CO., LTD.Inventors: Dae Soon LIM, Hak Ku YOON, Myung Won CHOI, Dong Sung LEE
-
Patent number: 10901172Abstract: Disclosed is a camera lens assembly having a lens part and a lens carrier for moving the lens part such that the same moves forward and backward in the direction of an optical axis. The disclosed camera lens assembly comprises: a base part; a lens carrier disposed to be slidable along a direction of an optical axis in the base part; and an automatic focal point adjustment driving part having one portion installed to the base part and the remaining portion installed to the lens carrier, to drive the lens carrier to move forward and backward along the direction of the optical axis by means of an electromagnetic force, wherein a part of the lens carrier and a part of the base part are convex-concave-coupled to each other, and a plurality of bearings are arranged on the convex-concave-coupled portion.Type: GrantFiled: February 6, 2017Date of Patent: January 26, 2021Assignee: MICRO ACTUATOR CO., LTD.Inventors: Myung-won Choi, Dae-soon Lim, Hak-ku Yoon, Dong-sung Lee
-
Patent number: 10237458Abstract: A filter switching device used for a camera module and a mobile device that includes a camera module are disclosed. The disclosed filter switching device used for a camera module comprises: a base having a light passage hole formed therein; a filter blade unit that is coupled to the base to rotate about the reference axis of the base and includes a plurality of filters; and a driving unit that rotates the filter blade unit using a magnetic force, wherein one of the plurality of filters is set to the position corresponding to the light passage hole when the filter blade unit rotates by a preset angle in a first direction, and another filter is set to the position corresponding to the light passage hole when the filter blade unit rotates by a preset angle in a second direction that is opposite to the first direction.Type: GrantFiled: March 16, 2016Date of Patent: March 19, 2019Assignee: MICRO ACTUATOR CO., LTD.Inventors: Dae-soon Lim, Hak-ku Yoon, Myung-won Choi
-
Publication number: 20190049692Abstract: Disclosed is a camera lens assembly having a lens part and a lens carrier for moving the lens part such that the same moves forward and backward in the direction of an optical axis. The disclosed camera lens assembly comprises: a base part; a lens carrier disposed to be slidable along a direction of an optical axis in the base part; and an automatic focal point adjustment driving part having one portion installed to the base part and the remaining portion installed to the lens carrier, to drive the lens carrier to move forward and backward along the direction of the optical axis by means of an electromagnetic force, wherein a part of the lens carrier and a part of the base part are convex-concave-coupled to each other, and a plurality of bearings are arranged on the convex-concave-coupled portion.Type: ApplicationFiled: February 6, 2017Publication date: February 14, 2019Applicant: MICRO ACTUATOR CO., LTD.Inventors: Myung-won Choi, Dae-soon Lim, Hak-ku Yoon, Dong-sung Lee
-
Publication number: 20180069995Abstract: A filter switching device used for a camera module and a mobile device that includes a camera module are disclosed. The disclosed filter switching device used for a camera module comprises: a base having a light passage hole formed therein; a filter blade unit that is coupled to the base to rotate about the reference axis of the base and includes a plurality of filters; and a driving unit that rotates the filter blade unit using a magnetic force, wherein one of the plurality of filters is set to the position corresponding to the light passage hole when the filter blade unit rotates by a preset angle in a first direction, and another filter is set to the position corresponding to the light passage hole when the filter blade unit rotates by a preset angle in a second direction that is opposite to the first direction.Type: ApplicationFiled: March 16, 2016Publication date: March 8, 2018Applicant: MICRO ACTUATOR CO., LTD.Inventors: Dae-soon LIM, Hak-ku YOON, Myung-won CHOI