ATÉN / Lens guide

Blue light,
filtered beautifully.

Front-facing portrait of a woman with a chin-length dark-brown bob seated at a worn wooden café table, wearing black ATÉN frames with deep red After Hours lenses, a charcoal blazer, black top and rings; her crossed hands rest beside a partly filled water glass, a small table lamp sits at lower left, and other patrons, lamps and tall windows are softly blurred behind her.

Life happens in front of a screen. ATÉN makes blue-light filtration part of eyewear you will actually want to wear.

Three lens tints balance filtering strength, brightness and colour shift differently. This guide helps you choose, then shows the supplier test data behind each lens.

Blue-light-filtering lenses reduce light transmission; they are not intended to diagnose or treat eye conditions.

Explore the lens guide

How to read the guide

The lens system,
at a glance.

01 / Light tint

Everyday
Mode

A subtle warm tint with the lightest filtration of the three tested samples.

43.03%Calculated blue-light attenuation380–500 nm ISO/ANSI · 400–500 nm AS/NZS
Best for
Client calls, shared workspaces and mixed screen-to-room work where a discreet tint matters.
Time of day
Morning through late afternoon.
Through the lens
Brightest view, subtle warmth and the least colour shift.
Everyday Mode transmittance versus wavelengthSupplier-reported centre transmission for the light-yellow sample at 10 nanometre intervals from 280 to 780 nanometres. Lower transmission means stronger attenuation at that wavelength.
Supplier-reported lens-centre transmission. Lower curve means less transmitted light. Redrawn from the report table; colour keys wavelength.

02 / Amber tint

Focus
Mode

A pronounced amber tint with stronger filtration and visible colour shift.

71.74%Calculated blue-light attenuation380–500 nm ISO/ANSI · 400–500 nm AS/NZS
Best for
Writing, coding, analysis and uninterrupted work blocks when precise colour is not essential.
Time of day
Afternoon into early evening.
Through the lens
Amber view with a noticeable colour shift.
Focus Mode transmittance versus wavelengthSupplier-reported centre transmission for the yellow sample at 10 nanometre intervals from 280 to 780 nanometres. Lower transmission means stronger attenuation at that wavelength.
Supplier-reported lens-centre transmission. Lower curve means less transmitted light. Redrawn from the report table; colour keys wavelength.

03 / Deep red tint

After
Hours

A deep red tint with the strongest filtration of the three tested samples.

99.91%Calculated blue-light attenuation380–500 nm ISO/ANSI · 400–500 nm AS/NZS
Best for
Late-evening screens, reading and familiar indoor routines after colour-sensitive work is finished.
Time of day
The final 2–3 hours before your usual bedtime.
Through the lens
Darkest view, deep red tint and strong colour shift.
After Hours transmittance versus wavelengthSupplier-reported centre transmission for the red sample at 10 nanometre intervals from 280 to 780 nanometres. Lower transmission means stronger attenuation at that wavelength.
Supplier-reported lens-centre transmission. Lower curve means less transmitted light. Redrawn from the report table; colour keys wavelength.

Tested performance

The ATÉN
standard.

Spectrally tested
Each ATÉN lens tint was spectrally measured at the lens centre. The graphs above show its transmission, wavelength by wavelength.
UV400 protection
The reports show that every tested tint filters more than 99% of UVA and UVB, providing UV400 protection through 400 nm.
CR-39 construction
Every ATÉN lens is made from lightweight CR-39 optical material, selected for clarity and comfortable everyday wear.
Choose your lens