Ventilated Goggle Seal Structure for Lens Fogging Reduction
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Solution Overview
Problem
Condensation on protective eyewear lenses due to trapped humidity and moisture in the goggle's air volume and sealing components, leading to reduced optical clarity and potential danger during humid environments or strenuous activities.
Innovation Solution
Incorporation of ventilation holes around the goggle frame's mounting surface to facilitate direct airflow between the sealing component and the external environment, reducing moisture accumulation and enhancing air exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If ventilation holes are added to improve airflow, then moisture removal is improved, but the sealing effectiveness may be compromised
Solution Approach 1:
The sealing component is divided into multiple sections: a first section with ventilation holes for moisture removal and a second section without holes for maintaining seal integrity. This segmentation allows different portions of the same component to serve different functions simultaneously.
Solution Approach 2:
Different regions of the sealing component have different properties: the first section has ventilation holes while the second section remains solid. This local differentiation enables the seal to provide both ventilation and sealing functions in appropriate locations.
2Ease of operation
If open cell foam is used for sealing, then comfort and fit are improved, but moisture transfer into the goggle volume increases
Solution Approach 1:
The sealing component is segmented into a moisture-absorbing section and a moisture-blocking section, allowing the foam to provide comfort while preventing excessive moisture transfer into the goggle volume.
Solution Approach 2:
The sealing component acts as an intermediary between the wearer's face and the goggle interior, selectively managing moisture transfer through its differentiated structure.
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
Reduces moisture and condensation within the goggle, improving optical clarity and preventing fogging by allowing moisture to exit the sealing component into the external environment.
Implementation Method 1
ventilation holes disposed around the mounting surface of the goggle frame to which a goggle seal is attached. Ventilations holes disposed in such an arrangement provide for less restricted airflow between the seal of the safety goggles and the external environment
Implementation Method 2
The additional airflow provided for by the ventilation holes creates an additional pathway for moisture to leave and dry the seal of the safety goggles
Data Source
AI summary
A goggle device is disclosed that comprises a frame, a lens attached to a frame, and a sealing component attached to the frame and configured to seal against a face of a user. A space between the lens and the face of the user defines an interior volume of the goggle. The frame includes a plurality of apertures that provide for ventilation through the sealing component of the goggle. The plurality of apertures can be disposed between the external environment and the sealing component. The disclosed goggle devices provide an additional pathway for moisture to leave the sealing component of the goggle thereby reducing the wetting and sponging effect that occurs in the sealing component from physical exertion of the user as well as allowing airflow to dry the sealing component of the goggle thereby reducing condensation on the lens and improving optical clarity.