Swimming Goggle Lens Assembly with Retaining Wall
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Solution Overview
Problem
Manufacturing and assembling lenses with special shapes and/or large sizes for swimming goggles is challenging, and applying anti-fog agents to these lenses results in inefficiencies and waste due to the difficulty in defining the coating range and the large surface area.
Innovation Solution
The lens assembly structure features a retaining wall on each lens that defines a visible area and a connection area, allowing the skirt portion to be easily integrated with the retaining wall, simplifying the manufacturing process and enabling efficient anti-fog agent coating within the defined visible area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If lenses with complicated shapes and large sizes are used to meet special design requirements, then the visual field and aesthetic appearance are improved, but the manufacturing difficulty and assembly complexity increase significantly
Solution Approach 1:
The lens assembly is divided into distinct functional regions: a visible area for optical function and a connection area for mounting. The skirt portion is segmented to wrap around the retaining wall, separating the optical zone from the structural zone. This segmentation allows independent optimization of lens shape/design flexibility while simplifying the mounting process.
Solution Approach 2:
A retaining wall is introduced as an intermediary structure between the lens and the frame. The retaining wall provides a standardized interface with a connection area that simplifies the attachment process. The skirt portion acts as another intermediary element that bridges the lens and frame assembly, enabling easy integration regardless of lens shape complexity.
2Reliability
If anti-fog agent is applied to the entire lens surface to ensure adequate coverage, then the anti-fog effectiveness is improved, but the material consumption and coating cost increase due to waste
Solution Approach 1:
The lens surface is differentiated into two zones with different functional requirements: the visible area requires anti-fog coating for optical performance, while the connection area does not require coating as it is covered by the skirt portion. This local quality differentiation ensures anti-fog effectiveness is applied only where needed, reducing material waste.
Solution Approach 2:
The connection area is extracted from the anti-fog coating process since it serves a structural purpose and is covered by the skirt portion. The coating process is focused exclusively on the visible area, eliminating unnecessary material consumption while maintaining adequate anti-fog coverage for the functional region.
3Ease of manufacture
If the coating range for anti-fog agent is not precisely defined, then the coating operation becomes simpler, but the anti-fog agent is wasted due to excessive coating area
Solution Approach 1:
The lens surface is segmented into a visible area and a connection area, providing a clear boundary for the coating process. This segmentation simplifies the coating operation by defining a specific target zone while preventing material waste on the connection area that would otherwise be covered by the skirt portion.
Data Source
AI summary
The present invention provides a lens assembly structure of swimming goggles. The lens assembly structure comprises two lenses, two retaining walls, two skirt portions, and two frame portions. Each of the lenses includes an eye side and a water side opposing to the eye side. The two retaining walls are provided on the eye sides of the lenses, respectively, and each of the retaining walls defines a visible area and a connection area. Each of the retaining walls has a configuration, and the corresponding skirt portion is disposed along the configuration. The connection area of the lens is affixed in the corresponding frame portion. The configuration of each of the retaining walls is a curve having a contour which is less complicated than a peripheral configuration of the lens.


