Magnetic structure for miniature imaging device

A technology of magnets and imaging areas, applied in electromechanical devices, installation, image communication, etc., to achieve the effects of high production efficiency, small overhead area, and reduced production costs

Active Publication Date: 2013-12-25
HONG KONG APPLIED SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As designers strive to introduce slimmer, smaller, and / or lighter portable electronic devices, manufacturers of small camera modules face the challenge of providing smaller camera modules to fit within the limited space in the device

Method used

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  • Magnetic structure for miniature imaging device
  • Magnetic structure for miniature imaging device
  • Magnetic structure for miniature imaging device

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Embodiment Construction

[0018] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the inventive subject matter. However, it will be apparent to those skilled in the art that the inventive subject matter may be practiced without these specific details. Additionally, methods, devices or systems that are well known to those skilled in the art will not be described in detail so as not to obscure the claimed subject matter.

[0019] Throughout this specification, "one embodiment" may refer to a particular feature, structure, or characteristic described in relation to a particular embodiment, which may be included in at least one embodiment of the present invention. Thus, appearances of "in one embodiment" in various places in the specification are not necessarily intended to refer to the same embodiment or to any particular embodiment being described. Furthermore, it is understood that the particular features, structures or chara...

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Abstract

The imaging device (100) comprises a lens assembly (160) including one or more lenses; an image sensor (180) to receive light from the lens assembly (160); and an actuator (190) to adjust a position of the lens assembly (160), the actuator (190) including at least one magnet (110) and a coil (130) to produce an electromagnetic force on the lens assembly (160). Magnetic poles of the at least one magnet (110) comprise mirror symmetry about an optical axis (105) of the lens assembly (160). A geometric plane of the at least one magnet (110) and a geometric plane of the coil (130) are perpendicular to the optical axis (105). And alignment of the magnetic poles of the at least one magnet (110) is perpendicular to the optical axis (105).

Description

【Technical field】 [0001] The invention disclosed herein relates to the generation of electromagnetic forces in small imaging devices. 【Background technique】 [0002] Many portable electronic devices, such as cell phones and / or personal digital assistants (PDAs), have a small camera module. The module may include an image sensor, an imaging lens assembly, and / or an actuator for adjusting the position of the imaging lens assembly relative to the image sensor. As designers strive to introduce smaller, smaller, and / or lighter portable electronic devices, manufacturers of small camera modules are faced with the challenge of providing smaller camera modules to fit within the limited space in the device . [Content of the invention] [0003] A small imaging device comprising: a lens assembly including one or more lenses; an image sensor for receiving light from the lens assembly; and an actuator for adjusting the position of the lens; the The actuator includes at least one magn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/02G02B7/04H02K33/02H04N5/225
CPCH02K41/031G02B7/08H02K7/14
Inventor 范建明郑国星关启昌
Owner HONG KONG APPLIED SCI & TECH RES INST
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