Back to results
US 12,743,004 B2Granted
Camera actuator
AssigneeLG Innotek Co., Ltd.
InventorsYoung Seop Moon, Jun Seok Oh, Young Bae Jang
Life of this patent
Estimating the term…
Abstract
A camera actuator according to an embodiment includes a moving part including a lens; and a driving part for moving the moving part in the optical axis direction; wherein the driving part includes: a circuit board; a sensing part disposed on the circuit board and sensing a position of the moving part; and a driver IC disposed on the circuit board and connected to the sensing part; wherein the sensing part includes first and second sensing parts, and wherein a distance between the first sensing part and the driver IC corresponds to a distance between the second sensing part and the driver IC.
Claims16
A camera actuator comprising:
- a moving part including a lens;
- and
- a driving part for moving the moving part in an optical axis direction,
- wherein the driving part includes:
- a circuit board;
- a sensing part disposed on the circuit board and sensing a position of the moving part;
- and
- a driver IC disposed on the circuit board and connected to the sensing part,
- wherein the circuit board includes a first substrate region disposed on one side of the moving part and overlapping the moving part in a first direction perpendicular to the optical axis direction, a second substrate region disposed on another side of the moving part and facing the first substrate region in the first direction, and a third substrate region connecting between the first substrate region and the second substrate region and overlapping the moving part in a second direction perpendicular to the optical axis direction and the first direction,
- wherein the sensing part includes a first sensing part disposed on the first substrate region and a second sensing part disposed on the second substrate region,
- wherein the driver IC is disposed on the third substrate region,
- wherein the circuit board includes a first signal line connecting between the first sensing part and the driver IC and a second signal line connecting between the second sensing part and the driver IC, and
- wherein a length of the first signal line satisfies a range of 95% to 105% of a length of the second signal line.
10 more elements
A camera actuator comprising:
- a base including a first sidewall, a second sidewall facing the first sidewall, and a lower part between the first sidewall and the second sidewall;
- a first guide part disposed adjacent to the first sidewall of the base and including a first rail;
- a second guide part disposed adjacent to the second sidewall of the base and including a second rail;
- a first lens assembly coupled to the base and fixed;
- a second lens assembly disposed in the base and moving along the first rail of the first guide part;
- a third lens assembly disposed in the base and moving along the second rail of the second guide part;
- and
- a driving part driving the second lens assembly and the third lens assembly,
- wherein the driving part includes:
- a circuit board;
- a first driving part disposed on the circuit board, including a first position sensor for sensing a position of the second lens assembly, and driving the second lens assembly;
- a second driving part disposed on the circuit board, including a second position sensor for sensing a position of the third lens assembly, and driving the third lens assembly;
- and
- a driver IC disposed on the circuit board and connected to the first driving part and the second driving part;
- wherein a signal distance between the driver IC and the first position sensor corresponds to a signal distance between the driver IC and the second position sensor,
- wherein the circuit board includes a first substrate region disposed on one side of the second lens assembly and overlapping the second lens assembly in a first direction perpendicular to an optical axis direction, a second substrate region disposed on another side of the third lens assembly and facing the first substrate region in the first direction, and a third substrate region connecting between the first substrate region and the second substrate region and overlapping the second lens assembly and the third lens assembly in a second direction perpendicular to the optical axis direction and the first direction,
- wherein the first position sensor is disposed on the first substrate region,
- wherein the second position sensor is disposed on the second substrate region,
- wherein the driver IC is disposed on the third substrate region,
- wherein a first signal line connecting between the driver IC and the first position sensor and a second signal line connecting between the driver IC and the second position sensor are disposed on the first to third substrate regions, and
- wherein a length of the first signal line satisfies a range of 95% to 105% of a length of the second signal line.
18 more elements
Dependencies are inferred from the claim text.