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Safe for all types of glasses, including those with expensive anti-reflective coating, Care Touch Anti-Fog Lens Spray even works on sports googles, camera lenses, and device screens. Keep one ...
A woman's eyeglasses are fogged up as she wears a face mask in cold, winter weather during the coronavirus pandemic. (AP Photo/Mark Schiefelbein) Nearly two years into the coronavirus pandemic and ...
The Fog Gone spray is the magical solution to keeping anything fog-free and ready to go. Whether it’s eyeglasses, swimming goggles, snorkeling masks or windows, this spray does it all.
The amount of light reflected is known as the reflection loss. In the more complicated scenario of multiple reflections, say with light travelling through a window, light is reflected both when going from air to glass and at the other side of the window when going from glass back to air. The size of the loss is the same in both cases.
For example, the dichroic prism assembly used in some cameras requires two dielectric coatings, one long-wavelength pass filter reflecting light below 500 nm (to separate the blue component of the light), and one short-pass filter to reflect red light, above 600 nm wavelength. The remaining transmitted light is the green component.
Adjustable focus lenses, like single-focus lenses, also reduce image-jump and spatial distortion in the field of view associated with traditional multi-focal lenses. Additionally, the ideal near-vision correction can be achieved with precision, because the variable lenses emulate the focusing action of the youthful (non-presbyopic) eye.
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