Integral Biasing Lens Interchange System
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Solution Overview
Problem
Current sunglasses with interchangeable lenses face difficulties in quick and easy replacement, especially in full-frame models where lenses must be inserted and removed through a thin slot, making the process cumbersome.
Innovation Solution
An integral biasing lens interchange system for glasses and goggles, featuring eyewires with deep grooves and integral molded springs that compress to facilitate lens insertion and removal, allowing lenses to be easily pushed in and pulled out for swapping, with the spring action centering and securing the lenses in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If lenses are inserted through a thin slot in full-frame sunglasses, then lens replacement is possible, but the process becomes difficult and cumbersome
Solution Approach 1:
The invention divides the lens replacement process into two distinct phases: insertion through a first opening and removal through a second opening. This segmentation allows each phase to be optimized independently, making the overall process easier despite the constraints of a full frame design.
Solution Approach 2:
The invention introduces a temporal dimension to the lens replacement process by providing different openings for insertion and removal at different times. The first opening is used for insertion while the second opening is used for removal, transforming a spatial constraint into a temporal solution that simplifies operation.
2Reliability
If lenses are secured tightly in the frame, then lens retention is secure, but lens removal becomes difficult
Solution Approach 1:
The frame structure is designed to be dynamic rather than static, with the ability to transition between a closed state (providing secure retention) and an open state (facilitating removal). The second opening can be selectively opened to release the lens while maintaining secure closure during normal wear.
Solution Approach 2:
The frame is designed with a preliminary opening mechanism that prepares the retention structure for lens removal before the actual removal action occurs. This preliminary action weakens the retention force in advance, making the final removal step easier while maintaining strong retention during normal use.
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 quick and easy lens replacement, even in adverse conditions, by compressing the spring to insert or remove lenses, ensuring secure retention and preventing rattling, thus improving user convenience and ease of use.
Implementation Method 1
an integral biasing molded spring provided in a groove of each eyewire that compresses to facilitate insertion and removal of the corresponding lens
Implementation Method 2
The lenses may then be pushed back and centered in the eyewires by the action of the springs when released
Data Source
AI summary
An integral and biased lens interchange system configured to be used with various types of eyewear. The eyewear includes at least one lens and a frame having a rim supporting the at least one lens. The interchange system includes a biasing member incorporated in at least one of a bridge of the frame and the rim of the frame.