Resilient Ring Lens Bracket for Torsion Pulsation
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Solution Overview
Problem
Camera modules experience torsion pulsation due to unevenness or abrupt changes in torsion force, leading to potential out-of-focus issues when assembling the lens bracket and lens barrel using screws, especially when glue dispensing is inaccurate.
Innovation Solution
Incorporation of a resilient ring with internal and external threads, along with a convex ring and adhesive features, to securely lock the lens barrel and bracket, reducing torsion effects and ensuring precise focusing, and the use of sealing glue for additional stability and moisture protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If screws are used to assemble the lens bracket and lens barrel, then the assembly can be easily disassembled and reassembled, but torsion pulsation occurs due to unevenness or abrupt change in torsion force, leading to out-of-focus issues
Solution Approach 1:
A resilient ring is introduced as an intermediary component between the lens barrel and lens bracket. This resilient ring absorbs torsion force variations and pulsations, preventing them from affecting the focusing accuracy while allowing the screw assembly to remain easily disassemblable. The resilient ring acts as a buffer that mediates the mechanical interaction between the two components.
Solution Approach 2:
The patent changes the physical state of the connection by introducing a resilient (elastic) component that can dynamically adjust to torsion force variations. The resilient ring's elastic properties allow it to absorb sudden torque changes and maintain stable focusing position, transforming the rigid screw connection into a semi-flexible connection that accommodates torsion pulsation.
2Reliability
If glue is used to fix the lens barrel, then the assembly becomes more stable, but the lens barrel may be inaccurately fixed due to dispensing issues
Solution Approach 1:
The fixing mechanism is segmented into multiple independent components: screws for primary mechanical fastening, resilient ring for torsion buffering, convex ring for positioning, and glue for sealing. This segmentation allows each component to perform its specific function optimally without the drawbacks of relying solely on glue, which has dispensing accuracy issues.
Solution Approach 2:
The screws, resilient ring, and convex ring are installed beforehand to provide preliminary mechanical stability and positioning. This preliminary action ensures that the lens barrel is already securely held and accurately positioned before glue is applied, eliminating the risk of inaccurate fixing due to glue dispensing variations.
3Reliability
If a resilient ring with threads is added to reduce torsion effects, then focusing accuracy is maintained, but the device complexity increases
Solution Approach 1:
The resilient ring is designed to perform multiple functions simultaneously: it provides mechanical fastening through external threads engaging with the lens bracket, buffers torsion pulsation through its elastic properties, and maintains focusing accuracy by stabilizing the lens barrel position. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity.
Solution Approach 2:
The patent merges several functions into a single resilient ring component: fastening (via threads), shock absorption (via elasticity), and positioning stabilization. By combining these functions into one component rather than using separate elements, the increase in device complexity is minimized while still achieving the goal of maintaining focusing accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively minimizes the risk of camera module misalignment and enhances focusing efficiency by securely locking the lens components, preventing torsion-induced pulsation and maintaining the module's waterproof integrity.
Implementation Method 1
a resilient ring with an outer circumference surface, the outer circumference surface being provided with an even distribution of a plurality of first annular grooves
Implementation Method 2
the use of sealing glue for additional stability and moisture protection
Data Source
AI summary
A camera module reinforced against excessive torque forces when being installed includes a lens bracket and a lens barrel. The lens bracket includes an internally-threaded receiving barrel, the lens bracket having external threads around its circumference. The external threads match the internal threads, and lower end of the lens bracket includes an annular groove, a resilient ring being received in the annular groove.