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> Higher precision
at any angle sharp
> Distortion-free vision whatever
the angle of gaze
> Optimal Iateral and peripheral
vision
> A large depth of field Excellent
aesthetics
> Excellent aesthetics |
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Spherical Lens
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Nikon SeeMax
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ulti -directional
double-aspheric lens
Double asphericity is not a new concept. It offers
improved optical performance over conventional aspheric
lenses for astigmatic prescriptions. However,Nikon
Seemax brings double aspheric techology to a new level.
SeeMax incorporates an extra 6 aspherical axes into the
back of the lens, allowing optical performance to be
maximized at every gaze angle. |
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Conventional Aspheric Lenses have an aspheric design on
the front surface only.The lens is flatter, and oblique
astigmatism and power error are better controlled than
in spherical lenses.However when the presciption
includes a cylinder, the design can only optimally
control aberrations in one of the 2 principal meridians. |
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Conventional Double Aspheric Lenses have an aspheric
axis on the front and 2 aspherical axes on the back
surface. This allows for a level of improvement over
aspheric lenses, yet distortion still exist in some
areas of the lens. |
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SeeMax is a multi-directional double-aspheric lens.An
extra 6 aspherical axes are incorporated into the back
of the lens to optimise optical performance across the
entire lens surface, thus reducing aberration in
multiple meridians. |
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