Layered Composite Lens Anti-Fog Seal Without Adhesives

The patent removes the adhesive component entirely from the anti-fog system. Instead of using adhesives to attach anti-fog films or coatings to the lens, the invention uses a mechanical interlocking structure where the anti-fog layer is integrated into the lens assembly through physical features like protrusions and recesses, eliminating the harmful adhesive degradation issue while maintaining anti-fog functionality

The patent creates a composite lens assembly integrating multiple materials with specific functions: the lens material provides optical clarity and structural integrity, while the anti-fog layer provides fog prevention through hydrophobic or hydrophilic properties. This composite structure eliminates the need for adhesives by using mechanical integration features, resolving the contradiction between maintaining protective barrier integrity and preventing adhesive degradation

The patent eliminates adhesives from the sealing mechanism entirely. Instead, it uses mechanical interlocking features such as protrusions and recesses that physically connect the lens to the protective equipment, creating a seal through mechanical force rather than chemical bonding. This approach maintains strong attachment while preventing the adhesive failure that would compromise seal integrity in harsh environments

The patent replaces the chemical bonding mechanism of adhesives with a mechanical bonding system. The lens and protective equipment are connected through physical features like protrusions and recesses that create a mechanical interlock, providing secure attachment and seal integrity without relying on adhesives that can degrade in high temperature or humidity conditions