Photochromatic TRANSMATIC lenses are specially designed to efficiently adjust and adapt in changes of light to protect one’s eyes from the sunlight. Under the influence of solar radiation, the lenses changes between the categories of cat. 1 and cat. 3, S2 and S3. Therefore, the user may be comfortable in various shades of light.
Goggle glasses (both lenses and frames) are produced in compliance with American ANSI Z80.30, European EN ISO 12312-1:2013 and Australian AS 1067.1 standards. They guarantee 100% protection against harmful UVA and UVB radiation. Shaded lenses or mirror shaded coverings (darker up, brighter down) are centralised i.e. the left and right lens are of the same colour at the same height.
According to the EN ISO 12312-1:2013 norm, lenses are classified in 5 categories of filters depending on the degree of light transmission.
„0” category lets 80-100% of the light through and is designed to be used on cloudy days.
„1” category lets 43-80% of the light through and is designed to be used on days with little sunshine.
„2” category lets 18-43% of the light through and is designed to be used on quite sunny days.
„3” category lets 8-18% of the light through and is designed to be used on very sunny days.
„4” category lets 3-8% of the light through and is designed to be used where there is a lot of sunshine, mainly on glaciers and in the mountains. Glasses with “4” category are not recommended while driving a car.