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Variable-focus and focusing structure of lens and module of digital camera using the same structure

A technology for digital cameras and lenses, applied in color TV parts, TV system parts, installation, etc., can solve the problems of large power loss, slow driving speed, low optical precision, etc., and achieve low noise and small driving device. , the effect of fast driving speed

Inactive Publication Date: 2011-06-08
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Whether it is a zoom structure or a focus structure, it is necessary to push, pull or rotate the lens through the driving mechanism. The existing driving mechanism usually uses a driver to drive the gear mechanism. The strip moves linearly, so that the lens moves linearly along the optical axis in the sleeve, changes the relative position between the lens group and the fixed lens in the sleeve, and realizes optical zoom. However, the zoom lens structure of the zoom camera occupies a large Large size, and during transmission, the power loss is large, the driving speed is slow, and the optical accuracy is low

Method used

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  • Variable-focus and focusing structure of lens and module of digital camera using the same structure
  • Variable-focus and focusing structure of lens and module of digital camera using the same structure

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Embodiment Construction

[0011] The lens zoom and focus structure of the present invention is applied in a digital camera module, please refer to figure 1 A preferred embodiment of the digital camera module 100 includes a lens zoom and focus structure (not shown), an image sensor 70 and a base 80 . The lens zoom and focusing structure includes: a first sleeve 10, a first stepping motor 20, a first lens barrel 30, a second sleeve 40, a second stepping motor 50, a second lens barrel 60.

[0012] The first sleeve 10 is roughly in the shape of a stepped cylinder, which includes a housing portion 12 and a flange portion 14 connected thereto. The outer diameter of the housing portion 12 is smaller than the outer diameter of the flange portion 14, and the The junctions form steps. The accommodating portion 12 is a cylinder with a through hole 122 in its middle. Several lenses 124 are disposed in the through hole 122 . The flange portion 14 is also a cylinder with a receiving hole 142 defined at one end t...

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Abstract

The invention discloses a lens zoom and focus structure and application of digital camera module. The lens zoom and focus structure includes a first sleeve, a first step into motor, a first tube, a second sleeve, a second step into a motor and a second tube. The first step into motor is set in the first sleeve. The first tube is equipped with at least one lens. The first step motors and the firsttube together drive the first tube to move axial relative to the first sleeve. The second sleeve is relatively fixed with the first sleeve. The second step into motor is set the second sleeve. The second tube is equipped with at least one lens. The second step into the motor and the second tube together drive the second tube to move axial relative to the second sleeve. The lens zoom and focus structure is of not only with smaller driver, but also fast driving, low noise and better meet the needs of the consumers.

Description

【Technical field】 [0001] The invention relates to a lens zoom and focus structure, in particular to a lens zoom and focus structure with small volume and fast driving speed and a digital camera module using the structure. 【Background technique】 [0002] In order to improve the imaging quality, digital cameras are generally equipped with a zoom structure and a focus structure. The lens of the zoom and focus structure of the digital camera is composed of a movable zoom lens group and a movable focus lens group. The functions of zooming and focusing are accomplished by changing the distance between the movable mirror group and the fixed mirror group on the optical axis through the movement of the movable mirror group. Among them, the zoom lens group moves to change the lens magnification, and the focus lens group moves to compensate for the magnification change and focus. [0003] Whether it is a zoom structure or a focus structure, it is necessary to push, pull or rotate the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/04G02B7/10H04N5/225
Inventor 余盛荣
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD