Prism Module Magnetic Restoring Mechanism Compact Assembly
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Solution Overview
Problem
The existing prism modules in folded lenses have a large reset space and are difficult to assemble, requiring a solution that minimizes space occupation while facilitating easy assembly.
Innovation Solution
A prism module design featuring a housing with an accommodation cavity, a rotation shaft for connecting the prism assembly to the housing, a driving assembly using magnetic blocks and coils for movement, and a restoring assembly with opposing magnets to reset the prism assembly to a preset position, ensuring easy assembly and compact space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional prism module design is used, then the prism assembly can be reset to a preset position, but the reset space is large and the assembly is difficult to assemble
Solution Approach 1:
The patent replaces the traditional mechanical restoring mechanism (such as springs or cam mechanisms) with a magnetic restoring mechanism. The first magnet fixed on the prism assembly and the second magnet fixed on the housing create magnetic attraction force that automatically restores the prism assembly to its preset position, eliminating the need for complex mechanical components and reducing reset space.
Solution Approach 2:
The patent changes the physical state and interaction parameters by using magnetic fields instead of mechanical contact. The magnetic poles are arranged to create attractive force that varies with distance, providing a smooth restoring force that guides the prism assembly to the preset position without requiring large mechanical clearance or complex assembly procedures.
2Volume of stationary object
If a compact design is implemented, then space occupation is reduced, but assembly complexity increases
Solution Approach 1:
By replacing mechanical restoring mechanisms with magnetic fields, the patent eliminates the need for precise mechanical clearances, lubrication channels, and complex linkage mechanisms. The magnetic restoring assembly consists of simply two magnets that can be easily positioned and fixed, significantly simplifying the assembly process while achieving compact dimensions.
Solution Approach 2:
The patent extracts and eliminates unnecessary mechanical components from the restoring mechanism, keeping only the essential magnetic elements. This extraction of redundant mechanical parts reduces both the overall size and the assembly complexity, as magnets can be directly fixed to the prism assembly and housing without requiring complex mounting structures.
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 design allows for a compact prism module with easy assembly and precise positioning, reducing space occupation and enhancing assembly convenience while maintaining the necessary optical functionality.
Implementation Method 1
the magnetic poles of the first magnet and the second magnet are opposite to each other and attract each other to drive the prism assembly to rotate to a preset position
Implementation Method 2
the first driving member comprises a first magnetic block and a first coil which are matched with each other
Implementation Method 3
the second driving member comprises a second magnetic block and a second coil which are matched with each other
Data Source
AI summary
The invention provides a prism module and a folded lens. The prism module includes a housing having an accommodation cavity, a prism assembly, a rotation shaft for rotationally connecting the prism assembly and the housing, a driving assembly for driving the prism assembly to rotate around the rotation shaft and a restoring assembly for resetting the prism assembly. The restoring assembly includes a first magnet and a second magnet. The first magnet is fixed on the prism assembly, and the second magnet is fixed on the housing and is set opposite to the first magnet with distance. The prism module of the invention can realize the resetting of the prism assembly, with small space occupation and convenient for assembly.