/ O P T I C A L TECHNOLOGIES
U N I V E T
Blue-light filter Blue Block
Did you know
The blue light visible to the human eye is generated by high frequencies (from 380 nm to 450 nm). The Blue Block lens filters up to 50% of these frequencies (up to 420 nm). If it blocked them completely, it would prevent the perception of the colour blue: since blue is a primary colour, this would cause an alteration in colour perception.
UV Filter
Blue Block 420 nm Filter
The Safety lens with Blue Block filter is designed to filter the blue light emitted by notebooks, LED monitors, tablets and smartphones as well as by artificial LED lighting. Using glasses with specially treated lenses is a valuable measure that can be adopted both by prescription- glasses wearers and by those without visual defects. The blue-light shielding treatment reduces the action of blue and UV rays, improves contrast and visual comfort, and reduces glare and reflections on the lens.
>>
Lens available on the models: Contemporary page 57-58-59 - Prescription Glasses page 110
152
153
Made with FlippingBook Online newsletter