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LENS CATERGORIES

ALL OF OUR EYEWEAR FALLS INTO CATEGORY 1

All our Sunglasses are tested to the personal protective regulations (CE MARK)

European Standard
The European standard is EN 1836:2005. The European standard tests on UV transmittance and categorized the four filter levels (0-4). The British standard (BS EN 1836:2005) test sunglasses against their UV transmittance. All sunglasses that meet the British standard will carry the ‘CE‘ mark.

Category 0; 80-100% VLT
 Category 1; 46-79% VLT
Category 2; 18-45% VLT
Category 3; 8-17% VLT
Category 4; 3-8% VLT

Category Characteristics Suitable for...
0

Cat 0 lenses are either clear or have a very light tint, they are used for safety glasses or spectacles where you need to see clearly what you are doing.

 
1

Cat 1 lenses are for casual use, used as a comfort filter in cosmetic and fashion eyewear.

Fashion
2

Cat 2 lenses are the most common category to be found in sunglasses, for general use they provide good protection from visible light and from UV rays.  This lens will have a tint which allows through less light than category 1 but more light than category 3

 General Purpose, watching and taking part in sport

3

Cat 3 - Provide extra protection from both visible and UV light.  These lenses will usually only allow less than 20% of visible light to penetrate the lens.  This means that they will block out 80%+ of light.

Open mountain ranges

4

Cat 4 - Provide a high level of protection from visible and UV light.  These lenses are not to be worn when driving as they are too dark.  These lenses will allow less than 10% of light to transmit through the lens.  They are to be used for specific situations only - not for a pair of everyday sunglasses.

High altitude trekking and mountaineering.

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