Viewing lens and method for treating lenses to minimize glare and reflections for birds with tetra-chromatic vision

A method for treating a viewing lens to reduce glare and reflections for birds with tetra-chromatic vision and camouflage a user of the viewing device by rendering the viewing device substantially undetectable to the birds with tetra-chromatic vision, the method comprising:

• providing a substrate, the substrate having a first face and a second face, the substrate being defined by ultraviolet light absorbing properties;
• removing debris from the faces of the substrate;
• plasma etching the faces of the substrate;
• applying an anti-reflective coating in multiple layers on at least one face of the substrate, the anti-reflective coating comprising an adhesion composition, a low index composition, a high index composition, and a superhydrophobic composition, the compositions being sequentially applied in sequential layers of varying nanometer thicknesses as follows:
• applying the adhesion composition on the substrate;
• applying the low index composition on the adhesion composition;
• applying the high index composition on the low index composition;
• applying the superhydrophobic composition on the high index composition;
• and
• integrating the substrate into the viewing device, whereby the viewing device is rendered substantially undetectable to the birds having tetrachromatic vision by reduction of glare and reflections from the point of view of the birds.

A method for treating a viewing lens to reduce glare and reflections for birds with tetra-chromatic vision and camouflage a user of the viewing device by rendering the viewing device substantially undetectable to the birds with tetra-chromatic vision, the method comprising:

• providing a substrate, the substrate having a first face and a second face, the substrate being defined by ultraviolet light absorbing properties;
• removing debris from the faces of the substrate;
• etching the faces of the substrate with an etching device;
• if the substrate is not hard-coated, dipping the substrate into a primer solution;
• if the substrate is not hard-coated, spinning the primer solution onto the substrate;
• if the substrate is not hard-coated, curing the substrate in an oven;
• plasma etching the faces of the substrate to prepare the faces for adhesion of an anti-reflective coating;
• applying the anti-reflective coating in multiple layers on at least one face of the substrate, the anti-reflective coating comprising an adhesion composition on the substrate, a low index composition on the adhesion composition, a high index composition on the low index composition, and a superhydrophobic composition on the high index composition, the compositions being sequentially applied in layers of varying nanometer thicknesses as follows:
• applying the adhesion composition on the substrate;
• applying 164.53 nm of the low index material on the adhesion composition;
• applying 14.16 nm of the high index material on the 164.53 nm of the low index material;
• applying 23.5 nm of the low index material on the 14.6 nm of the high index material;
• applying 101 nm of the high index material on the 23.5 nm of the low index material;
• applying 76.19 nm of the low index material on the 101 nm of the high index material;
• applying the superhydrophobic composition on the 76.19 nm of the low index material, whereby the varying nanometer thicknesses of the compositions render the faces of the substrate less apparent or undetectable to the birds with tetra-chromatic vision;
• and
• integrating the substrate into the viewing device, whereby the viewing device is rendered substantially undetectable to the birds having tetrachromatic vision by reduction of glare and reflections from the point of view of the birds.