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Zeolite High-Contrast Lens (grey)

Bigatmo Grey Lenses – S14 Zeolite High Contrast Narrow Band (HCNB) lenses use advanced Light Management technology to make colours come alive.

Lens demo: See the world through Bigatmo Zeolite lenses

Most grey lenses reduce glare, but the side affect is colours tend to be dull. This is not the case with Bigatmo’s vibrant colour enhancing lens technology.

Our eyes detect colour using ‘cones’ on the retina. These cones detect red, green and blue in a similar way to how televisions generate colour. The idea behind High Contrast Narrow Band (HCNB) is to filter out the wavelengths between these three primary colours and so optimise the wavelengths that enter our eyes. In fact, our eyes are most sensitive to wavelengths in the green spectrum, and wavelengths in the blue range cause visual clutter, loss of contrast and eye fatigue.

HCNB technology allows the eyes to receive more specific colour information which increases the sharpness and clarity of the image whilst reducing fatigue.

Chromatic response of the eye

Normal Chromatic response of the eye: Eye sensitivity curves have wide overlapping areas between chromatic receptors, making it difficult to rapidly define chromatic contrast

Bigatmo chromatic response of the eye

Bigatmo Chromatic response: Our NXT®/ Trivex® High Contrast Narrow Band lenses reduce the overlapping areas, improving chromatic contrast and reaction time






Video demo

The video shows how our High Contrast Narrow Band lenses enhance true colour perception:

Benefits of Bigatmo Zeolite (grey) S14 High Contrast Narrow Band lens technology:

  • Grey High Contrast Narrow Band lens
  • Tested by pilots
  • Optimised for high contrast conditions such as on a flight deck of an aeroplane or driving a car
  • HCNB Light Management technology Reduces visual clutter by filtering out the wavelengths between primary colours
  • Sharp HD clarity
  • Vibrant Colour acuity, colours come alive
  • Lens material composed of NXT®/Trivex®, a lightweight and virtually unbreakable optical polymer
  • Industry leading anti-reflective, anti-scratch and omniphobic, ‘easy-to-clean’ coatings
  • High impact and chemical resistance
  • 100% harmful UV light blocked
  • Available in prescription


Zeolite lenses are available in five different eye shapes and a variety of different frame colours and mirror finishes.

More Bigatmo lenses

Our Polarized lenses have the same colour enhancing technology as our Zeolite lenses, together with a polarizing filter which dramatically reduces glare from roads, snow, sea and sand, revealing all kinds of hidden details and textures in High Definition.

Our Alutra lenses deliver a punchy view of the world with excellent vibrant colour acuity and High Definition Optics. The photochromic core is perfect for when you’re out and about moving between sun and shade, and also allows you to comfortably read instrument panels in high contrast environments like the flight deck or when driving.