Camera Module Blocking Structure for Filter Collision Protection
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Solution Overview
Problem
The increasing pixel count in camera modules leads to higher camera lens heights, which results in collisions between the optical lens and filter elements during focusing, causing damage and reducing the reliability of the camera module.
Innovation Solution
A blocking structure is integrated into the camera module, positioned between the optical lens and filter element, preventing direct contact and collision by extending beyond the filter element's upper surface to absorb the impact, thereby protecting the filter and lens from damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the camera lens height is reduced to minimize module height, then the overall camera module height is reduced, but the optical lens easily collides with the filter element during focusing, causing damage
Solution Approach 1:
A blocking structure is introduced as an intermediary component between the optical lens and the filter element. This blocking structure extends beyond the upper surface of the filter element and absorbs impact forces during focusing operations, preventing direct collision between the lens and filter while maintaining the reduced module height design
Solution Approach 2:
The blocking structure is positioned in advance before the optical lens can collide with the filter element. By extending beyond the filter's upper surface, it provides pre-positioned protection that absorbs impact forces before they can reach the filter, ensuring filter integrity during focusing operations
2Measurement precision
If high-pixel camera modules are designed, then imaging capability is improved, but the camera lens height increases due to larger image surface requirements
Solution Approach 1:
The camera module is segmented into distinct functional zones: the optical lens assembly, the blocking structure, and the filter element. This segmentation allows the optical lens to maintain its required height for high-pixel imaging while the blocking structure independently provides protection, decoupling the imaging performance requirements from the mechanical collision risk
3Length of stationary object
If the lens holder is removed to reduce module height, then the distance between lens barrel and filter is reduced, but the risk of lens collision with filter during assembly and focusing increases
Solution Approach 1:
The blocking structure serves as a mediator that replaces the protective function previously provided by the lens holder. By extending beyond the filter's upper surface, it creates a physical barrier that prevents direct contact between the optical lens and filter during assembly and focusing, eliminating the collision risk introduced by removing the lens holder
Data Source
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AI summary
Disclosed are a camera module, a blocking-type photosensitive assembly, a manufacturing method thereof, and an electronic device. The camera module includes a blocking-type photosensitive assembly and at least one motor camera lens assembly arranged on the blocking-type photosensitive assembly. The blocking-type photosensitive assembly includes a molded photosensitive assembly and a blocking structure arranged on the molded photosensitive assembly. A blocking surface of the blocking structure is higher than an upper surface of a filter element, and at least a part of the projection of the blocking surface of the blocking structure on the molded photosensitive assembly overlaps with the projection of an optical lens of the motor camera lens assembly on the molded photosensitive assembly to block the optical lens from directly contacting the filter element.