Removable Eyewear Front Frames With Localized Magnetic Fields

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Solution Overview

Problem

Existing eyewear systems lack the ability to easily and securely attach removable front frames without affecting optical quality or fit, and they often interfere with magnetized devices due to strong magnetic fields.

Innovation Solution

A base frame with magnetic couplings, including trapezoidal or conical magnets and ferromagnetic guides, allows for secure attachment of a front frame with controlled magnetic fields, minimizing interference with other devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If strong magnets are used to securely attach the front frame to the base frame, then the attachment stability is improved, but the magnetic interference with other devices increases

Engineering Contradiction:
Improveattachment stabilityVSAvoidmagnetic interference
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by creating a concentrated magnetic field at the attachment interface between the front frame and base frame, while the magnetic field strength decreases with distance from the interface. This allows strong local attachment force at the coupling points while minimizing magnetic interference with other devices in the surrounding area. The magnetic field is localized to where it is needed for attachment rather than being distributed throughout the entire eyewear structure.

Inventive Principle:
Principle #3Local quality

2Force

If magnets are positioned closer to the attachment interface, then the attachment force is improved, but the magnetic field depth increases causing more interference

Engineering Contradiction:
Improveattachment forceVSAvoidmagnetic field depth
Core Design Contradiction:
ForceVSObject-affected harmful factors

Solution Approach 1:

The patent employs dimensional strategy by using multiple magnets arranged in arrays across the attachment interface rather than relying on a single deep magnet. This distributes the attachment force across multiple points and creates a magnetic field that is intense at the interface but decays rapidly with distance. The multi-point arrangement in space achieves both strong attachment force and limited field depth, as the combined effect of multiple shallow field sources creates strong local force while individual field contributions diminish quickly with distance.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If multiple magnets are used to increase attachment security, then the reliability is improved, but the device complexity increases

Engineering Contradiction:
Improveattachment securityVSAvoidmagnet arrangement complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by integrating the magnetic attachment system into existing structural components of the eyewear, such as incorporating magnets into the bridge and temple structures that already serve structural and aesthetic functions. This multi-functionality approach allows multiple magnets to be included for enhanced attachment security without proportionally increasing complexity, as the magnets are embedded within components that fulfill multiple roles in the overall eyewear design.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 easy customization of eyewear aesthetics and functionality while maintaining stability and reducing magnetic interference with other devices.

Implementation Method 1

The front frame can be releasably connectable to the base frame by a plurality of magnetic couplings

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

each magnet coupling being formed by at least a pair of magnets

Methodology Applied
Scientific EffectMagnetism: Magnetism

Implementation Method 3

a ferromagnetic guide in the form of a plate positioned in a recess in either the base frame or the front frame

Methodology Applied
Scientific EffectFerromagnetism: Ferromagnetism

Data Source

PatentUS20250284144A1Eyewear with front frame removably attachable to base eyewear by enhanced magnets
Publication Date: 2025.09.11 PAIR EYEWEAR INC
  • US20250284144A1 patent drawing
  • US20250284144A1 patent drawing
  • US20250284144A1 patent drawing

AI summary

An eyewear system can include a base frame with a front portion comprising an anterior surface and a posterior surface, at least one lens, and left and right ear stems attached to the front portion of the base frame; and a front frame configured to be positioned in front of the front portion of the base frame; and wherein the front frame is releasably connectable to the base frame by a plurality of magnetic couplings, each of the plurality of magnetic couplings comprising at least one magnet with an exposed external surface and a recessed internal surface on an opposite side, the exposed external surface having a smaller width than the recessed internal surface.