Anti-Scratch Treatments in comparison Vanguard
Did you know that
Vanguard ultra performing treatments, Vanguard PLUS and Vanguard ULTRA, harden the surface of the lens for an outstanding scratch resistance while maintaining total transparency and increasing safety for the user.
In order to stress the anti-scratch qualities of the treatment, the EN 166 regulation requires 3 kg of quartz sand to be dropped from a height of 1.65 m on the lens and to subsequently check the delta in the luminance factor, which must not exceed the value of 5 Cd / Mq 2 x lux.
Maximum scratch resistance
Lens treatments Summary
> 5 Cd Mq X lux
3,5 Cd Mq X lux
2 Cd Mq X lux
1,2 Cd Mq X lux
SYMBOL
TREATMENT
MARKING
KN KN
Vanguard ULTRA Vanguard PLUS
The performance of the treatment may vary according to the conditions of use, as well as to proper cleaning and maintenance of the lenses. (Indications on page 98)
K
Anti-Scratch
Uncoating
Anti-Scratch
Vanguard PLUS
Vanguard ULTRA
Anti-Scratch Basic
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