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Lens cone driving device, and lens driving module and camera module

A driving device and camera module technology, applied in the direction of electromechanical devices, installation, optics, etc., can solve the problems of not getting the degree of freedom of the stepping motor, not being able to eliminate the configuration of the rotor on the cylindrical stator, and not being able to get the degree of freedom, etc.

Inactive Publication Date: 2006-05-17
SEIKO INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the so-called relationship of disposing the rotor inside the cylindrical stator cannot be eliminated, the degree of freedom in the shape of the stepping motor cannot be obtained.
Thereupon, the degree of freedom in the shape design of the lens barrel (lens barrel driving device) equipped with the cylindrical stepping motor cannot be obtained, so the lens barrel (lens barrel driving device) of Citation Document 1 is not suitable in form for example Assembled suitably in the limited assembly space of thin portable electronic devices

Method used

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  • Lens cone driving device, and lens driving module and camera module
  • Lens cone driving device, and lens driving module and camera module
  • Lens cone driving device, and lens driving module and camera module

Examples

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Embodiment Construction

[0055] refer to Figure 1 to Figure 8 One embodiment of the present invention will be described.

[0056] figure 1 and Figure 7 Reference numeral 11 in denotes a camera module. The camera module 11 is mounted on a printed wiring board in a body of a thin portable electronic device such as a card-shaped digital camera or a mobile phone with a camera function. The camera module 11 includes a lens barrel 12 , a lens barrel drive device 13 , a circuit component 14 , a sensor 15 constituting a detection unit, and an imaging element 16 .

[0057] Lens barrel 12, in figure 1 and figure 2 In the outer casing 22 shown to support the fixed lens 21, there are respectively built-in Figure 7 Focusing lens 23 and zoom lens 24 are shown, and, having Figure 7 The lens drive mechanism 25, 26 is shown. A lens drive mechanism 25, bears the first lens function such as focusing function together with the focus lens 23, has the rotatable focus ring 25a of lens barrel 12 prescribed ang...

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Abstract

The present invention provides a camera module capable of securing a space around a lens barrel and suppressing magnetic interference between adjacent stepping motors. A focus actuator (41) and a focus actuator (71) for actuating the lens barrel (12) are installed on one side of the base (32) on which the lens barrel (12) capable of focusing and zooming is installed. Each actuator (41, 71) is provided with a stepping motor (42, 72) and a reduction gear train (transmission mechanism) (43, 73) for linking the lens barrel (12) with the motor. The height of each actuator (41, 71) is configured to be lower than the height of the lens barrel (12) based on the above-mentioned one surface. These actuators (41, 71) are deployed along one surface of the base (32) so as to be separated in the circumferential direction of the lens barrel (12).

Description

technical field [0001] The present invention relates to a lens barrel driving device used for focusing or zooming of the lens barrel mounted on portable electronic equipment such as a card-shaped digital camera or a mobile phone with a camera, etc., and a camera module (camera module) comprising the device. . [0002] In addition, the present invention relates to a lens driving module used for focusing and zooming of a lens group mounted on a portable electronic device such as a digital card camera or a mobile phone with a camera, and a camera module including the lens driving module. Background technique [0003] In the prior art, there are known lens barrels and cameras configured as follows: it has a plurality of actuators for performing the focus function, zoom function, and aperture function of the lens barrel, and by arranging these actuators along the Viewing from the direction of the optical axis of the lens barrel to the direction of the two surfaces forming the co...

Claims

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Application Information

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IPC IPC(8): G02B7/02H02K33/18
Inventor 小棚木进久米章铃木诚里馆贵之
Owner SEIKO INSTR INC
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