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Conlons offer a wide variety of pale cosmetic tints and also darker sunglass tints including hi-tech polarising lenses for the best performance available. We also offer Transitions and other photochromic lenses which are clear indoors and go dark in bright sunlight. All Conlons tints offer full UV protection.
In the UK tinted glasses and sunglasses should conform to the European Standard EN1836 which provides an guidance on the protection levels, suitability and recommended usage of filter tints as follows:
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Overview of protection levels, suitable filter tints and recommended ranges according to EN 1836 |
|
Filter Category |
Description |
Range of use |
Light transmittance range in %
(absorption%) |
UV protection in % |
Suitability for road traffic |
|
Day |
Night |
|
[0] |
Untinted / slight tint |
Dull |
80 – 100
(0 – 20) |
100 |
Yes |
Yes |
|
[1] |
Slight tint |
Sunny |
43 – 80
(20 – 57) |
100 |
Yes |
No |
|
[2] |
Medium tint |
Bright |
18 – 43
(57 – 82) |
100 |
Yes |
No |
|
[3] |
Dark tint |
Very Bright |
8 – 18
(82 – 92) |
100 |
Yes |
No |
|
[4] |
Very dark tint |
Extremely Bright |
3 – 8
(92 – 97) |
100 |
No |
No |
Please note that you should not drive at night in anything but the palest of tint, and you should not drive at all in sunglasses that absorb more than 92% of visible light (these are normally specialist sunglasses for skiing, mountaineering or sailing).
Additionally there are other categories of tint that are not suitable for driving. You should consult the documentation supplied with your sunglasses, however in general terms brown, grey and green tints are usually suitable for driving during the day providing they aren’t too dark, whereas blue and pink tints are generally not because they interfere with perception of colour including your ability to see traffic lights, break lights, indicators etc. |