Lens Tint Guide — FL-41, Sleep & Blue Light | Sleepaxa

Sleepaxa

Spectral Engineering · Lens Library

Six lenses.
One science.

Each Sleepaxa lens is tuned to a specific band of light. Tap any lens below to preview exactly how a scene shifts through that tint — colour, comfort, and clarity, all in one focused view.

Patent IN 587746
Lab-Validated Filtration
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Interactive Spectral Preview

Try every lens.

Tap a lens to open a focused preview — the tint applied to a real scene with a plant, a screen, and natural light. Move through all six.

RGB Spectrum

R

G

B

700nm 550nm 450nm
Natural View · No Lens
Tap any lens below

Tap a lens to begin

Each Sleepaxa lens is precision-engineered for a specific wavelength range. Tap below to open a focused preview.

Visual representation. Actual filtration measured via lab-validated spectrometer across each batch.

Find Your Match

Which lens is for you?

Day Time · Yellow

For everyday clarity.

Office, screens, harsh fluorescent lighting, outdoor activities.

Choose if: bright environments tire your eyes.

Amber · Orange

For mild to moderate sleep.

Evening screen time, falling asleep faster, daily eye fatigue.

Choose if: sleep is okay but could be better.

Red

For severe deep sleep.

Chronic insomnia, shift work, 30–60 min pre-sleep ritual.

Choose if: sleep is a real struggle.

FL-41 Rose

For mild migraine.

Office migraines, screen-triggered headaches, photophobia.

Choose if: light triggers your headaches sometimes.

Dark FL-41

For chronic migraine.

Severe photophobia, post-concussion, harsh outdoor light.

Choose if: light always triggers your migraines.

◆ Bespoke

For The Particular Few

Don't see your tint? We'll make it.

A specific photophobia trigger? Shift hours our standard tints don't cover? A doctor-recommended nm range? Our optical lab crafts custom-tuned lens tints on request — calibrated to your exact wavelength needs.

◆ Custom wavelength range
◇ Lab-calibrated filtration
◈ Doctor-spec compatible
◉ 14–21 day craft time

i · Consult

Share your symptoms, triggers, or doctor's recommendation on WhatsApp.

ii · Calibrate

Our optical lab tunes the exact filtration range to your need.

iii · Craft

Hand-finished in our optical lab, delivered with spectrometer report.

Request Custom Tint →

Free consultation · No commitment

Build Your Spectrum

Tell us your filter.

Move the sliders to dial in your ideal R · G · B balance, or specify your exact nm range. We'll craft it.

Live Preview

Tint similar to: Sleepaxa Amber

Estimated Range

Up to 500 nm

Target: Melanopsin pathway

Red Pass 100%
Green Pass 70%
Blue Pass 25%

Your Use Case (optional)

Free consultation · Spectrometer report included

Sleepaxa Care

Still unsure which fits you?

Tell us your symptoms, lifestyle, and screen hours. We'll match you in 2 minutes.

Talk to a Sleepaxa Expert →