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A camera module and defrosting method

A technology of a camera module and a drive module, which is applied in the field of photography, and can solve problems such as affecting the shooting effect, the camera module does not have a focusing function and a defrosting function, and the protection cover is easy to accumulate frost and fog, etc.

Active Publication Date: 2020-03-13
TRULY OPTO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current camera modules, especially camera modules used outdoors such as security and vehicle, tend to accumulate frost and fog on the lens in humid and harsh outdoor environments, and some camera terminals are equipped with protective covers on the lens to protect the It is also easy to accumulate frost and fog on the cover, which affects the shooting effect, and most of these camera modules do not have focusing function and defrosting function

Method used

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  • A camera module and defrosting method
  • A camera module and defrosting method
  • A camera module and defrosting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, a camera module includes a driving module, a voice coil motor and a lens, the driving module is electrically connected to the voice coil motor, and the lens is arranged in the voice coil motor. Such as figure 2 As shown, the voice coil motor includes a base 1 and a yoke 7 fitted on the base 1, a magnetic mover and a permanent magnet group 4 are arranged in the accommodation cavity between the base 1 and the yoke 7, The magnetic mover includes a carrier 2 and a focusing coil 3 wound outside the carrier 2, the lower end of the carrier 2 is assembled with the base 1 through the lower elastic piece 5, and the upper end is assembled with the yoke 7 through the upper elastic piece 6 ; The lens is set in the carrier 2 .

[0029] In the existing shooting process, the drive module supplies focus current to the focus coil 3, so that the focus coil 3 generates different dynamic magnetic fields, which interact with the static magnetic field of the perm...

Embodiment 2

[0041] Such as Figure 7 As shown, a defrosting method for a camera module includes the following steps:

[0042] Step 1: Turn on the camera module to shoot;

[0043] Step 2: judging whether there is frost fog on the lens of the camera module;

[0044] Step 3: If there is frost and fog on the lens, the camera module stops shooting, then feeds the first heating current to the focusing coil in the voice coil motor for defrosting, and repeats steps 2 and 3; if there is no frost and fog on the lens , the camera module continues to shoot.

[0045] This defrosting method utilizes the existing focus coil in the voice coil motor of the camera module to heat the lens to achieve the purpose of defrosting, not only does not need to change the existing mechanical structure of the camera module, but also avoids the occurrence The electromagnetic interference caused by the voice coil motor enables the existing camera module to adapt to some harsh and humid natural environments. Since th...

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Abstract

The invention discloses a camera module and a defrosting method, which uses the existing focus coil in the voice coil motor to heat the lens to achieve the purpose of defrosting, not only does not need to change the existing mechanical structure of the camera module, but also It can avoid the electromagnetic interference generated during defrosting to the voice coil motor, so that the existing camera module can adapt to some harsh and humid natural environments.

Description

technical field [0001] The invention relates to the field of photography, in particular to a camera module and a defrosting method. Background technique [0002] The current camera modules, especially camera modules used outdoors such as security and vehicle, tend to accumulate frost and fog on the lens in humid and harsh outdoor environments, and some camera terminals are equipped with protective covers on the lens to protect the It is also easy to accumulate frost and fog on the cover, which affects the shooting effect, and most of these camera modules do not have focusing function and defrosting function. Contents of the invention [0003] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a camera module and a defrosting method, which uses the existing focus coil in the voice coil motor to heat the lens to achieve the purpose of defrosting, without changing the camera module The existing mechanical structure can also pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225
CPCH04N23/50
Inventor 谢荣富
Owner TRULY OPTO ELECTRONICS
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