Flexible Polyetherimide Temple Design for Headgear Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional glasses frames are uncomfortable to wear with headsets, hats, helmets, and other headgear due to pressure-induced discomfort, skin irritation, and deformation, especially for pilots who require noise cancellation in noisy environments.
Innovation Solution
The temples of the glasses frames are made from a thin, flexible layer of polyetherimide that can deform without breaking, distributing pressure over a larger area and maintaining lens alignment, with features like inward arcing and weighted ends to reduce discomfort and prevent ear contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional rigid plastic and metal frames are used, then structural strength and durability are improved, but comfort and adaptability when wearing headgear deteriorate due to pressure concentration and permanent deformation
Solution Approach 1:
The temple is constructed from a flexible material (polymer, metal alloy, or composite) that can elastically deform when pressure is applied from headgear. This flexibility allows the temple to adapt to different headgear configurations without permanent deformation, while still maintaining sufficient structural strength to support the glasses frame and lenses.
Solution Approach 2:
The temple's physical parameters (flexibility, elasticity, pressure distribution characteristics) are optimized to allow dynamic adaptation. The material properties are selected or engineered to provide appropriate compliance under load, enabling the temple to change shape temporarily when headgear is worn, then return to its original configuration.
2Manufacturing precision
If conventional rigid frames are used, then manufacturing precision and lens alignment are improved, but comfort deteriorates due to pressure-induced deformation and discomfort
Solution Approach 1:
The flexible temple material absorbs and distributes pressure from headgear along its length and across the contact surface, preventing concentration of force at specific points. This reduces discomfort and skin irritation while the elastic recovery ensures the temple returns to its precise original position, maintaining lens alignment.
Solution Approach 2:
The flexible material inherently provides cushioning before pressure is applied. When headgear contacts the temple, the material deforms elastically to distribute the load, preventing direct transmission of concentrated pressure to the user's head and ears, thereby reducing discomfort and potential skin irritation.
3Adaptability or versatility
If thin flexible material is used for temples, then comfort and adaptability are improved, but structural strength and durability may deteriorate
Solution Approach 1:
The temple utilizes composite materials or metal alloys that combine flexibility with structural strength. These materials provide both the compliance needed for comfort and adaptability when wearing headgear, and the structural integrity required to support the glasses frame, resist breaking, and maintain durability over time.
Solution Approach 2:
The material properties are carefully selected or engineered to achieve an optimal balance between flexibility and strength. The temple's physical parameters (modulus of elasticity, tensile strength, fatigue resistance) are optimized to provide sufficient compliance for comfort while maintaining the structural strength needed for durability and breaking resistance.
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 flexible frames provide comfort and safety by minimizing pressure on the ears, preventing deformation, and ensuring proper fit with headgear, while maintaining optimal lens position and visibility.
Implementation Method 1
The temples of the glasses frames are made from a thin, flexible layer of polyetherimide that can deform without breaking
Data Source
AI summary
Glasses frames including temples that may be worn comfortably beneath a head gear, such as helmets, headsets, earmuffs, hard hats, and speakers. In some cases, the temples may be thin, substantially flat, and flexible to allow the temples to deform without substantially increasing the pressure applied by the head gear to a head of a wearer.