Royal Blue Day

Royal Blue Day, computer glasses with a blue light filter

Royal Blue Day are NoBlue glasses designed for daytime use while working with computers, laptops, phones and artificial lighting. Day lenses filter 40% of blue light within their stated operating range and are intended for everyday screen use without the strong colour shift of Orange evening lenses.

This model features the blue version of the Royal frame, with a versatile shape for everyday wear. It is intended for people who want to reduce part of their daytime blue light exposure while keeping screen colours more natural than with Orange lenses.

What do Royal Blue Day glasses do?

• filter 40% of blue light within the stated Day lens operating range,
• are designed for daytime work with screens,
• keep colours more natural than Orange evening lenses,
• can improve subjective comfort during long sessions in front of a monitor,
• are suitable for work, study and everyday use with digital devices.

What's included?

• Royal Blue Day glasses,
• protective case,
• microfibre cleaning cloth,
• blue light tester,
• user instructions.

Who are Royal Blue Day for?

Royal Blue Day are intended for people who spend a large part of the day working or studying in front of screens. They can be used with desktop computers, laptops, phones and tablets, as well as in offices with artificial lighting.

The model features the blue version of the Royal frame, with a versatile shape for everyday wear. If you want to compare other daytime models, see the NoBlue daytime blue light glasses collection.

Why limit some blue light during the day?

Blue light is a natural part of daylight and is also emitted by digital displays and many artificial light sources. During the day, the goal is not to remove all blue light, but to reduce part of the exposure from screens while maintaining comfortable, usable colour perception.

Day lenses are designed for this purpose. Their lighter filtering makes them suitable for work, study and routine computer use where a strong orange colour shift would be inconvenient.

40% blue light filtering with Day lenses

The Day lenses used in Royal Blue Day filter 40% of blue light within their stated operating range. This creates a lighter visual effect than Orange lenses and allows screen colours to remain closer to their natural appearance.

Day lenses are intended for daytime use. For evening use, especially after dark, NoBlue Orange lenses provide stronger filtering.

Glasses for computers, laptops, phones and office work

Royal Blue Day can be worn while working on a desktop computer or laptop, using a phone, attending video calls, studying online or spending long periods under office lighting. They are designed to fit into a normal daytime routine without requiring major changes to the way you use screens.

Eye comfort during screen use

Long periods of close-up work can be associated with tired, dry or uncomfortable eyes. Regular breaks, blinking, appropriate viewing distance and good lighting remain important parts of screen hygiene.

Day lenses reduce part of the blue light emitted by screens and may improve subjective comfort during long periods of digital work while preserving more natural colours than Orange lenses.

NoBlue lens technology

Royal Blue Day use CR39 lenses with the filter integrated into the lens material rather than relying only on a surface coating. The filtering properties are therefore part of the lens itself.

NoBlue lens testing

NoBlue lenses have been evaluated in measurements carried out at Lodz University of Technology, Institute of Electrical Power Engineering. The measurements show the difference between Day lenses and stronger Orange lenses.

More information and measurement results are available on the NoBlue test results page.

How do Royal Blue Day differ from Orange glasses?

Royal Blue Day use Day lenses and filter 40% of blue light within their stated operating range. They are designed for daytime work and maintain more natural colours.

Orange glasses filter 100% of blue light within the stated Orange lens operating range and are intended for evening and after-dark use. You can choose the lens type according to the time of day.

Why choose Royal Blue Day?

Royal Blue Day combine the lighter Day filter with the blue version of the Royal frame, with a versatile shape for everyday wear. They are a practical choice for people who want screen glasses that can be worn for many hours during a normal working or study day.

When should you wear Royal Blue Day?

Wear Royal Blue Day during daytime screen use, for example while working, studying, browsing, using a phone or spending long periods in front of a monitor. For evening use, switch to NoBlue Orange lenses if you want stronger filtering.