Camera Module Adjustable Member for Focal Length Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional camera modules suffer from image fuzziness and distortion due to focal length variations in optical lenses, which are not effectively addressed by existing focal length compensation methods that alter the camera module's total length, impacting optical performance and reliability.
Innovation Solution
A compact camera module design featuring an adjustable member with compensation balls of varying diameters, placed between the lens cube and barrel, allows for fine-tuning of focal length without changing the camera module's total height, enabling integration of lenses with shorter or longer focal lengths by adjusting the height of the adjustable member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the height of the normal spacer is changed to compensate focal length variations, then the image fuzziness and distortion problems are improved, but the total length of the camera module changes, affecting optical performance and reliability
Solution Approach 1:
The patent applies parameter changes by using compensation balls with different diameters to adjust the focal length. Instead of changing the spacer height, the invention varies the diameter of compensation balls (a different parameter) to achieve focal length compensation while maintaining the original spacer dimensions and total module length, thus resolving the contradiction between manufacturing precision and reliability
Solution Approach 2:
The compensation balls serve as an intermediary element between the lens and the image sensor. These balls are embedded in the adjustable member and provide the necessary height adjustment for focal length compensation without directly modifying the spacer structure, thereby maintaining optical performance reliability while achieving precise focal length adjustment
2Manufacturing precision
If the height of the normal spacer is changed to compensate focal length variations, then the image fuzziness and distortion problems are improved, but the total length of the camera module changes, affecting optical performance
Solution Approach 1:
The invention changes the parameter being adjusted from spacer height to compensation ball diameter. This allows focal length precision to be improved while keeping the spacer height and total module length constant, thereby avoiding the degradation of optical performance that would result from changing the overall module dimensions
3Adaptability or versatility
If lenses with shorter or longer focal lengths are integrated, then the adaptability of the camera module is improved, but the focal length variations cause image fuzziness and distortion
Solution Approach 1:
The patent applies local quality by providing different compensation ball diameters for different focal length requirements. Each lens can be paired with appropriately sized compensation balls to achieve precise focus, allowing the system to accommodate various lens types while maintaining high image focus precision through localized adjustment
Data Source
AI summary
A method and system for facilitating focusing of a camera module are disclosed. The camera module includes an image sensor, a lens cube, a barrel and an adjustable member. An adjustable member can be configured to fine-tune the focal length with respect to an image sensor, so that a lens cube with a shorter or longer focal length can be corrected and integrated into the camera module.