Filter Mounting Structure With Independent Rotation Control
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Solution Overview
Problem
Current filter mounting structures either restrict independent rotation of individual filters or cause unintended rotation of the lens, failing to meet user requirements for precise control over multiple filters.
Innovation Solution
A filter mounting structure featuring a lens connecting pad with a rotation adjusting ring and a mounting ring, where the first filter frame is magnetically attracted to the mounting ring, allowing independent rotation of both filters through a limiting mechanism that prevents unwanted rotation of the lens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the first filter is fixedly connected to the lens and the second filter is movably connected to the first filter, then the structure is simple and stable, but the user cannot independently rotate the first filter
Solution Approach 1:
The mounting structure is segmented into multiple independent rotational control mechanisms. Each filter (first filter and second filter) has its own dedicated rotation adjusting ring and limiting mechanism, allowing independent rotation control without affecting other filters or the lens. This segmentation resolves the contradiction by enabling independent operation while maintaining structural organization.
Solution Approach 2:
Rotation adjusting rings serve as intermediary components between the user's rotational input and the filter frames. These intermediaries translate user rotation actions into controlled filter rotations while preventing unwanted lens rotation through integrated limiting mechanisms. The intermediaries enable precise control without directly coupling all components.
2Ease of operation
If the first filter is movably connected to the lens allowing rotation, then the user can rotate the first filter, but the second filter's rotation drives the lens to rotate unintentionally
Solution Approach 1:
The limiting mechanisms are built into the mounting structure before use, proactively preventing lens rotation from occurring during filter adjustments. The limiting blocks and limiting grooves are pre-configured to block any rotational force that would affect the lens, countering the potential harmful effect before it can occur.
Solution Approach 2:
The rotational control is segmented into independent pathways for each filter. The first filter's rotation is controlled by a first rotation adjusting ring with its own limiting mechanism, while the second filter's rotation is controlled by a second rotation adjusting ring with its own limiting mechanism. This segmentation ensures that rotating one filter cannot drive lens rotation, as each rotation path is independently constrained.
3Reliability
If a limiting mechanism is added to prevent lens rotation, then lens stability is improved, but the device complexity increases
Solution Approach 1:
The limiting mechanisms are merged into the existing mounting ring structures rather than being added as separate external components. The limiting blocks and limiting grooves are integrated into the mounting rings that already hold the filters, combining the mounting function with the rotational limitation function in a single unified structure.
Solution Approach 2:
The mounting rings serve multiple functions simultaneously: they hold the filters in place, provide rotational adjustment capability, and incorporate limiting mechanisms to prevent lens rotation. This multi-functionality reduces overall device complexity by eliminating the need for separate components for each function.
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
Enables independent and precise control over the rotation of multiple filters, meeting user requirements by preventing lens rotation during filter adjustments.
Implementation Method 1
The first filter frame is attracted on the mounting ring
Data Source
AI summary
The present disclosure provides a filter mounting structure, which includes a lens connecting pad and a first filter frame. The lens connecting pad is provided with a rotation adjusting ring and a mounting ring. The mounting ring and the rotation adjusting ring form a fastening connection therebetween. The mounting ring is provided with a limiting groove. The first filter frame is provided with a limiting block. The first filter frame is attracted on the mounting ring. The limiting block is received in the limiting groove. The rotation adjusting ring rotates to drive the mounting ring to rotate, and the mounting ring rotates to drive the first filter frame to rotate. The filter mounting structure further includes a second filter frame movably attracted to an end of the first filter frame away from the mounting ring, the second filter frame is rotatable relative to the first filter frame.