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Actuator, camera module, and camera mounted device

A technology of an actuator and a camera, applied in the field of a camera module, a camera-mounted device, and an actuator, can solve the problems of no image sensor detection, no unit, and difficulty in controlling the movement of a movable part with high precision.

Pending Publication Date: 2021-03-19
NEW SHICOH MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in the technologies of Patent Documents 1 and 2, there is neither means for detecting whether the moving destination of the movable part including the image sensor matches the target, nor means for correcting it.
Therefore, there is a problem in that it is difficult to control the movement of the movable part with high precision

Method used

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  • Actuator, camera module, and camera mounted device
  • Actuator, camera module, and camera mounted device
  • Actuator, camera module, and camera mounted device

Examples

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Embodiment Construction

[0033] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Such as figure 1 As shown, in this embodiment, the camera module 4 is mounted on the smartphone 5 . The camera module 4 includes: a lens body 1 as an optical element; an image sensor 2 that photoelectrically converts light introduced from a subject through the lens body 1 ; and an actuator 3 . The actuator 3 also has a lens driving device that performs autofocus control based on driving the lens body 1 , and an image sensor driving device that performs shake correction control based on driving the image sensor 2 .

[0034] Hereinafter, the optical axis direction along the optical axis of the lens body 1 is appropriately referred to as the Z direction, a direction perpendicular to the Z direction is appropriately referred to as the X direction, and the direction perpendicular to the Z direction and the X direction is referred to as the X direction. The direction of is ap...

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Abstract

By detecting the position and the rotation amount of the image sensor in the in-plane direction, the movement of the movable part can be controlled with high precision in the three-axis direction. Theactuator (3) has a fixed part and a movable part having a rectangular image sensor (2), a coil (510), and a position sensor (52). The coils (510) are arranged at positions corresponding to each sideof the image sensor (2), and two coils (510) are arranged in parallel along each of the two opposite sides. When two coils (510) disposed at positions facing each other in the forward direction and corresponding to two opposing sides are defined as one coil group, one position sensor (52) is provided corresponding to each group of the coils. The position sensor (52) is disposed at a position corresponding to one coil (510) in the coil group.

Description

technical field [0001] The present invention relates to an actuator, a camera module, and a camera-mounted device used in electronic devices such as smartphones. Background technique [0002] In camera modules with a shake correction function installed in electronic devices such as smartphones, there is a type of module called sensor shift, which corrects the shake by moving the image sensor in a plane perpendicular to the optical axis direction of the lens. Make corrections. Patent Documents 1 and 2 exist as documents disclosing techniques related to such a camera module. The shake correction device for a camera module described in Patent Document 1 is to pass through the outer periphery of an opening of a rectangular plate-shaped housing in the front and rear, and to provide two pairs of guide units extending in the direction of two axes, the X axis and the Y axis, so that the imaging element can be moved forward and backward. The held shake correction moving device is c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232
CPCH04N23/687H04N23/55H04N23/54H04N23/67
Inventor 和出达贵傅雪鹏
Owner NEW SHICOH MOTOR CO LTD
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