Conical Eyewear Lens Geometry for Wider Vision and Ventilation
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Solution Overview
Problem
Existing eyewear lenses provide limited vertical and horizontal fields of view, suffer from internal fogging, and have inadequate ventilation, failing to meet the needs of enhanced optical quality, comfort, and safety for various activities.
Innovation Solution
A conical-shaped lens design with varying radii and a contact member that conforms to the face, providing improved ventilation and enhanced field of view while minimizing fogging, suitable for integration with different types of eyewear and headgear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a unitary lens system is used, then lateral eye protection and full side-to-side vision are improved, but vertical and horizontal field of vision are limited
Solution Approach 1:
The lens is divided into multiple zones with different optical properties: a central zone for primary vision, peripheral zones for expanded field of view, and specific zones for protective functions. This segmentation allows each zone to optimize for its specific function while collectively providing both protection and expanded vision.
Solution Approach 2:
The patent transitions from traditional 2D lens surfaces to a 3D conical geometry with varying curvature radii in different directions. The lens incorporates different curvature radii for horizontal and vertical meridia, creating a three-dimensional optical surface that expands the field of vision in multiple dimensions while maintaining protective coverage.
2Object-affected harmful factors
If a unitary lens system is used, then lateral eye protection is improved, but ventilation is inadequate
Solution Approach 1:
The lens incorporates integrated ventilation channels and airflow pathways segmented into different regions: upper ventilation zones for air intake, lower zones for exhaust, and lateral channels for cross-ventilation. This segmentation enables effective airflow while maintaining the protective enclosure.
Solution Approach 2:
The lens utilizes flexible, breathable membrane materials that provide protective coverage while allowing gas permeability. These thin film structures enable ventilation function within the protective lens system, allowing air and moisture vapor transmission.
3Area of stationary object
If a unitary lens system is used, then full side-to-side vision is improved, but internal fogging occurs
Solution Approach 1:
The lens incorporates anti-fogging treatment segmented into different zones with varying properties: hydrophilic zones for moisture management, hydrophobic zones for water repellency, and ventilation channels for moisture evacuation. This zoned approach prevents fogging while maintaining visual clarity.
Solution Approach 2:
The lens integrates pneumatic ventilation channels that create airflow to prevent moisture accumulation and fogging. The hydraulic principles are applied through capillary channels that manage condensation and moisture transport, preventing internal fogging while maintaining the sealed protective structure.
Data Source
AI summary
Embodiments comprise a lens for an eyewear. The lens comprises a portion of a conical surface configured to be located in the path of a wearer's field of vision. The portion of the conical surface has a first side edge and a second side edge. The portion of the conical surface extends arcuately from the first side edge to the second side edge. The portion of the conical surface has an upper edge and a lower edge. The portion of the conical surface extends from the upper edge to the lower edge. A rate of change of a lens normal from the upper edge to the lower edge is constant. The lens normal is measured along an axis that intersects the conical surface at a pupillary distance.