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Lens actuator with ois and af functions

A technology for lens actuators and lens mounts, applied in instruments, machines/engines, color TV components, etc., can solve the problems of magnetic field leakage of OIS systems, OIS systems cannot be placed side by side, adverse effects, etc.

Active Publication Date: 2021-04-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is a dual OIS system, the two OIS systems cannot be placed side by side, this is because the OIS systems will adversely affect each other due to magnetic field leakage

Method used

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  • Lens actuator with ois and af functions
  • Lens actuator with ois and af functions
  • Lens actuator with ois and af functions

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention. The invention is characterized by novel features. The drawings are for illustration purposes only and are not drawn to scale. Furthermore, like numerals refer to like features in the figures. The invention itself, both as to structure and method of operation, is best understood by reference to the detailed description taken in conjunction with the accompanying drawings.

[0025] figure 1 shows a top view of the lens actuator provided by the present invention, figure 2 shows fro...

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Abstract

The present invention provides a lens actuator. The lens actuator includes: a piezoelectric element for moving the lens holder along the optical axis direction; a shape memory alloy (Shape Memory Alloy, SMA for short) for moving the lens holder in a predetermined direction perpendicular to the optical axis direction; and A voice coil motor (VCM for short) is used to move the lens holder in a direction perpendicular to the optical axis direction and different from a predetermined direction. The present invention reduces or eliminates the magnetic influence of the OIS system.

Description

technical field [0001] The invention relates to a lens actuator used in an imaging device and having the functions of Optical Image Stabilization (OIS for short) and Auto Focus (AF for short). Background technique [0002] In cameras, the AF function is used to focus the image to be captured on the image sensor by moving the lens in the direction of the optical axis (the direction in which the centers of the lenses line up), and OIS is used to suppress the The image was blurred due to hand shake when shooting. [0003] The OIS system of the camera module is becoming more and more popular in the smartphone market because by using the OIS system, everyone can take beautiful pictures even in dark places or when there is hand shake. On the other hand, dual camera systems are also gaining popularity in the smartphone market because applications such as zooming, 3D, and AF control can be achieved by using a dual camera system. There is a good chance that these two trends will me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
CPCF03G7/065G02B27/646H04N23/54H04N23/60H04N23/55H04N23/687
Inventor 宇野胜米山厚司
Owner HUAWEI TECH CO LTD