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sunglasses
glossary
Acetate
Form of plastic used in eyeglass frames.
Anti-reflective (AR)
Coating applied to a lens to reduce the amount of reflected
light and glare that reaches the eye.
Aviator Style
Eyewear with a metal frame and large, tinted lenses, like
aviators wear.
Bridge
The part of sunglasses that extends across the nose.
Clip-on
Style of glasses that attaches to other glasses.
Mirror Coating
Reflective coating, which greatly reduces the amount of light
that reaches your eyes.
Glare
Light source that is reflected from a surface and much stronger
than the original light.
Gradient
Type of lenses that ranges from dark at the top to light at
the bottom
Hydrophilic
Used in frame temples and nose pads, to make them more adhesive.
Infrared (IR)
Also known as "heat waves" and can be found in electric
heaters, house radiators, and ordinary light bulbs.
Optyl
A plastic material made especially for eyeglass frames.
Photochromic lenses
Lenses that darken when you go outside and lighten when you
go inside.
Polarized Lenses
Block horizontally polarised light by vertically orientated
polarisers in the lense, which can reduce glare. Absorbs 98%
of the reflected glare.
Spring hinge
Type of hinge on eyeglass frames that is more flexible than
a regular hinge, making the frames more durable and better
fitting.
Temple
The "arm" of a pair of glasses, running from
the ear to the lens area.
Titanium
A type of metal alloy that is very strong. Eyeglasses made
of titanium are lightweight, durable and often hypoallergenic.
Ultraviolet (UV) Rays
UVA and UVB light are harmful to your eyes and skin.
Wrap-around (wrap) Type of eyeglass frame that curves around
the head, from the front to the side.
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