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Shrapnel design method and shrapnel, sma component, lens module and electronic equipment

A technology of shrapnel and components, applied in the direction of TV, electrical components, optical components, etc., can solve the problems of lens shake, mechanical crosstalk, etc., and achieve the effect of improving the performance of optical anti-shake

Active Publication Date: 2022-05-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practical applications, it is found that when only one direction of optical image stabilization is performed, the lens will vibrate in the other direction, resulting in a mechanical crosstalk effect

Method used

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  • Shrapnel design method and shrapnel, sma component, lens module and electronic equipment
  • Shrapnel design method and shrapnel, sma component, lens module and electronic equipment
  • Shrapnel design method and shrapnel, sma component, lens module and electronic equipment

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Embodiment Construction

[0107] The technical solution in this application will be described below with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of this application, not all of them.

[0108] The electronic devices involved in the embodiments of the present application may include handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem. Can also include cellular phones, smart phones, personal digital assistant (PDA) computers, tablet computers, laptop computers, laptop computers, machine type communication , MTC) terminal, point of sales (POS), video camera, video recorder, camera, smart watch (smart watch), smart wristband (smart wristband), on-board computer and other electronic devices with imaging functions, etc.

[0109] Hereinafter, the terms "first", "second", etc. are used for descriptive purposes only, and cannot be understood as indicating o...

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Abstract

The application provides a spring design method, the spring, an SMA component, a lens module and electronic equipment. The SMA assembly includes: a fixing piece, a shrapnel and a shape memory alloy SMA wire, one end of the SMA wire is connected to the fixing piece, and the other end is connected to the shrapnel; the shrapnel includes a shrapnel main body and at least one shrapnel cantilever ; Wherein, the cantilever of the elastic piece is connected with the main body of the elastic piece and extends along the outer edge of the main body of the elastic piece; the cantilever of the elastic piece is connected with the fixing member at a predetermined position of the extension part; the at least one cantilever of the elastic piece Axisymmetric or 90° rotationally symmetric. The above technical solution can reduce or eliminate the mechanical crosstalk of the shrapnel in the SMA component and improve the optical anti-shake performance.

Description

technical field [0001] The present application relates to the field of lens driving devices, and more specifically, relates to a spring design method, the spring, an SMA component, a lens module and electronic equipment. Background technique [0002] Optical image stabilization (OIS) is a kind of shake detection through the gyroscope, and then the OIS motor translates or rotates the entire lens in the opposite direction to compensate for the image blur caused by the shake of the terminal device during exposure. [0003] Currently commonly used OIS driving devices include voice coil motor (voice coil motor, VCM) type, shape memory alloy (shape memory alloys, SMA) type, piezoelectric type, stepping motor type and so on. Among them, the SMA-type OIS device uses SMA technology to drive the lens to achieve optical image stabilization, and has many advantages such as small drive size, high efficiency, fast speed, low power consumption, and low sound. [0004] The SMA driving devi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/02G03B5/02
CPCG03B5/02G03B30/00G03B2205/0076G03B2205/0015G02B7/08G02B27/646H04N23/55H04N23/685
Inventor 段然万海波梅倩吕大林李邓峰
Owner HUAWEI TECH CO LTD
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