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Actuator for camera module, camera device and mobile terminal

A camera module and actuator technology, applied in the field of mobile terminals and actuators, can solve the problems of poor image edge imaging effect and inability to use long-term shooting, etc., achieve good anti-shake effect and improve image quality

Active Publication Date: 2021-09-24
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the one hand, optical image stabilization, but there will be a change in the relative position between the lens and the image sensor, and the imaging effect on the edge of the image is poor
[0005] On the other hand, two-axis optical image stabilization cannot be used for long-term shooting. This makes low-light shooting a bottleneck and limitation for image quality improvement

Method used

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  • Actuator for camera module, camera device and mobile terminal
  • Actuator for camera module, camera device and mobile terminal
  • Actuator for camera module, camera device and mobile terminal

Examples

Experimental program
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Effect test

example 1

[0115] refer to Figure 1 to Figure 8 As shown, this example is a miniature three-axis rotary actuator. The main design is to use one pair of sides of the one-piece cross-shaped shrapnel to clamp the camera module carrier through the ball, and the other pair of sides to clamp the actuation through the ball. The bracket of the actuator, wherein, there is a corresponding spherical groove at the camera module carrier, and there is a spherical track on the actuator bracket. The track of the spherical track is arc-shaped, and the center of the arc is in line with the light The axes coincide, so that the camera module carrier has 3 axial degrees of freedom of rotation, plus the closed-loop electromagnetic force control system on the three sides of the actuator bracket, so that the actuator can accurately execute various input signals, To achieve the effect of various applications. This example uses a pair of spherical rails and balls to form two axial rotations, and the arc center ...

example 2

[0117] This example is a three-axis rotary actuator such as figure 1 and figure 2 As shown, it can achieve super anti-shake effect with the camera module. The main design is to use an integrated cross-shaped shrapnel (ie, elastic bracket), such as image 3 , There are two openings in the clamping position of one side of the shrapnel, and two grooves in the clamping position of the other opposite side, using the openings to fix a pair of balls; then the balls are connected with the camera module carrier.

[0118] like Figure 4 , so that the camera module carrier can perform an axial rotational movement, and the two grooves of the cross shrapnel are used to fix the roller. The ball is then connected to the actuator bracket, such as Figure 8 , the position where the actuator is connected to the ball is a spherical track.

[0119] like Figure 8 As shown, the trajectory of the spherical track is arc-shaped, and its arc center coincides with the center of the optical axis o...

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Abstract

The invention relates to an actuator of a camera module, a camera device and a mobile terminal. The actuator of the camera module comprises: from outside to inside, a camera carrier used for installing the camera module; and an elastic support which is provided with a first groove, a second groove, a first opening and a second opening. The actuator further comprises a first ball, a second ball, a third ball and a fourth ball. The first ball is located between the actuator support and the elastic support and located in the area where the first open hole is located. The third ball is located between the actuator support and the elastic support and located in the area where the second open hole is located. The second ball is located between the actuator support and the elastic support and located in the area where the first groove is located. The fourth ball is located between the actuator support and the elastic support and located in the area where the second groove is located.

Description

technical field [0001] The present disclosure relates to the technical field of cameras, and in particular to an actuator for a camera module, a camera device and a mobile terminal. Background technique [0002] The camera module can be used for image capture, for example, to form photos and / or videos through image capture. [0003] Currently, the image stabilization devices of mobile terminals such as mobile phones use optical image stabilization due to space constraints. [0004] On the one hand, optical image stabilization, but there will be a change in the relative position between the lens and the image sensor, and the imaging effect on the edge of the image is poor. [0005] On the other hand, two-axis optical image stabilization cannot be used for long-term shooting. This makes low-light shooting a bottleneck and limitation for image quality improvement. Contents of the invention [0006] The present disclosure provides an actuator for a camera module, a camera de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B5/00G03B30/00H04N5/232
CPCG03B5/00H04N23/687
Inventor 郑志羿张亮明
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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