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Linear Ball Guide Voice Coil Motor for Folding Optics

A ball, linear technology used in the field of actuation mechanisms to solve problems such as unusable folding cameras

Active Publication Date: 2020-06-12
COREPHOTONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The actuation method in US Patent 8810714 is designed for standard non-folded lenses where the optical axis of the lens points directly at the subject to be photographed and cannot be used in a folded camera

Method used

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  • Linear Ball Guide Voice Coil Motor for Folding Optics
  • Linear Ball Guide Voice Coil Motor for Folding Optics
  • Linear Ball Guide Voice Coil Motor for Folding Optics

Examples

Experimental program
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Effect test

Embodiment 100

[0057] Embodiment 100 describes a general bidirectional actuator. Other embodiments may have the following variations:

[0058] In the embodiment 100 , the top actuation subassembly 110 moves in the Y direction relative to the middle moving frame 112 and the base 122 , and the bottom actuation subassembly 120 moves in the X direction relative to the base 122 . In other actuator embodiments, such as in the latter Figure 1J and 1K In the actuator 100" shown in , the top actuating subassembly 110 can move in the X direction relative to the middle moving frame 112 and the base 122, and the bottom actuating subassembly 120 can move in the Y direction relative to the base 122 .

[0059] In embodiment 100 there are two VCMs providing force in the X direction. This is to reduce power consumption. In other embodiments, the actuator may have only one VCM providing force in the Y direction.

[0060] In embodiment 100 there is a VCM providing force in the Y direction. This is to r...

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PUM

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Abstract

The present invention relates to an actuator for carrying and actuating a lens having a first optical axis, the lens receiving light folded from a second optical axis substantially perpendicular to the first optical axis, said actuator comprising: coupled to First and second VCM engines of the lens, and first and second linear ball guide tracks adapted to produce movement of the lens in two substantially orthogonal directions when actuated by the corresponding VCM engines.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application No. 62 / 359,222, filed July 7, 2016, which is incorporated herein by reference in its entirety. technical field [0003] Embodiments disclosed herein relate generally to actuation mechanisms ("actuators"), and in particular to voice coil motor (VCM) actuators for digital video cameras. Background technique [0004] High-end digital camera modules (and particularly cellular telephone (eg, smart phone) digital cameras) include mechanisms that allow advanced optical functions such as focusing or optical image stabilization (OIS). Such a mechanism can actuate (eg shift, shift or tilt) an optical unit (eg lens, optical sensor, mirror) to produce a desired optical function. One commonly used actuator is based on Voice Coil Motor (VCM) technology. In VCM technology, permanent (or "fixed") magnets and coils are used to generate braking force. The coil is p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/64
CPCG02B7/08G02B7/09G02B27/646H04N23/54H04N23/55G02B7/04G03B13/36G03B3/00H02K41/0356H04N23/687H04N23/67H04N23/686G03B5/00G03B3/10G03B13/34G03B17/17G03B17/12G03B2205/0069G03B2205/0007
Inventor G·巴查尔I·耶狄德G·沙布岱E·戈登堡G·艾微微I·杰比
Owner COREPHOTONICS