Lens self-cleaning control circuit and device of camera module
CN224697804UActive Publication Date: 2026-08-28GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD
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Patent Information
- Application Number
- CN202521847033.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-08-28
AI Technical Summary
Technical Problem
[0003]由于户外使用需求增加，受到室外环境的影响更加明显，当环境温度较低（如冬季）且空气湿度较高时，镜头表面温度低于露点温度，空气中的水蒸气会在镜头表面凝结成微小水珠，导致画面模糊、对比度下降，甚至完全遮挡视野，成像质量不高
Benefits of technology
通过设置清洁模块与摄像模组的镜头内侧接触，清洁模块通过镜头外侧的附着物生成电信号并反馈到采样模块，采样模块再对电信号进行处理并输出反馈信号到主控模块，主控模块根据反馈信号和摄影模块输送的图像信号进行综合分析，从而能够输出合适的驱动信号到清洁模块进行振动发热，从而能够将镜头表面的附着物进行振动加热去除，提高了摄像模组的成像质量，提高了用户体验，同时也能够避免传统的方式通过人为的方式将镜头表面的附着物擦除，提高了便捷性。
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Abstract
The application discloses a lens self-cleaning control circuit and device of a camera module, which comprises a cleaning module, a sampling module and a master control module. The cleaning module is used for generating an electric signal according to the attachments on the outer side of the lens, and performing vibration heating when receiving a driving signal. The sampling module is used for receiving the electric signal and generating a feedback signal. The master control module is used for analyzing the feedback signal and / or an image signal delivered by the camera module, adjusting and delivering the driving signal to the cleaning module in real time, and generating vibration when the cleaning module receives the driving signal, so as to remove the attachments on the lens by vibration heating. The design can improve the imaging quality of the camera module.
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