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Lens unit driving device

A lens unit and driving device technology, applied in installation, optical components, optics, etc., can solve problems such as difficulty in properly adjusting the vibration reduction performance of vibration reduction materials, falling off vibration reduction materials, and inability to exert vibration reduction functions.

Pending Publication Date: 2021-09-24
NIDEC COPAL CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned prior art has the problem that if a gel-like damping material is used, the damping material is easily detached from the coil substrate. Unable to perform vibration damping function
In addition, in the prior art, since a gel-like damping material is sandwiched between the driven member and the coil substrate, there is a problem that it is difficult to properly adjust the damping performance of the damping material.

Method used

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  • Lens unit driving device
  • Lens unit driving device
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Examples

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Embodiment Construction

[0033] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different drawings denote parts with the same functions, and repeated description in each drawing is appropriately omitted.

[0034] The lens unit driving device 1 drives the optical unit including the lens, that is, the lens unit, on one or both of the optical axis direction of the lens and the direction intersecting the optical axis of the lens, such as figure 1 and figure 2 As shown, it has a base member 2 , a driven member 3 , a driving portion 4 , and a supported member 5 . The lens unit here includes other components assembled together on the lens including the lens monomer.

[0035] figure 1 and figure 2 The shown lens unit driving device 1 is an example of a lens unit driving device, and drives an unshown lens (lens direction) in the direction of the optical axis of the lens (Z direction in the dra...

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PUM

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Abstract

The invention provides a lens unit driving device capable of suppressing separation of a vibration damping material for suppressing unnecessary resonance and adjusting vibration damping performance. The lens unit driving device includes a base member; a driven member that holds the lens unit and is driven with respect to the base member in one or both of an optical axis direction of the lens and a direction intersecting the optical axis direction of the lens; a drive unit that drives the driven member; and a member to be supported which is supported by the base member directly or via another member and does not vibrate integrally with the vibration of the member to be driven, and is provided with a recessed vibration-damping material accommodating part for accommodating the vibration-damping material, and a protruding part. The protrusion-shaped portion protrudes so as to always come into contact with the vibration-damping material accommodated in the vibration-damping material accommodating portion.

Description

technical field [0001] The present invention relates to a lens unit driving device that drives an optical unit (lens unit) including a lens. Background technique [0002] A device that drives an optical unit (lens unit) including a lens in the direction of the optical axis of the lens or in a direction intersecting the optical axis is used in a camera module assembled in a photographing device (camera) or electronic equipment, and the drive is used to perform Focus control, OIS (Optical Image Stabilizer: Optical Image Stabilizer) control, etc. [0003] In such a driving device, the driven member is elastically supported and vibrates in various directions. Therefore, it is a problem to suppress not only primary resonance in the driving direction but also unnecessary resonance in other directions. Conventionally, damping materials have been used to suppress unnecessary resonance. According to the prior art, a damping material is arranged between a driven member and a coil su...

Claims

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Application Information

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IPC IPC(8): G02B7/04G03B30/00
CPCG02B7/04
Inventor 江原悠介松久治可
Owner NIDEC COPAL CORPORATION