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CLARK COFFEE RED

109,00€

Our glasses, scientifically designed and manufactured to block blue and green light, not only protect you from harmful light, they also make you look great while wearing them!

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The lens uses a patented filtering technology to block 90% of blue light in the lower range of 400 to 455 nanometers; this is the most energetic and harmful type of light emitted by screens and lighting. More importantly, it allows all the beneficial blue light in the upper part of the spectrum (455-500 nm) to pass through, which is essential during the day for optimal hormone production, energy, a positive mood, and motivation.

The lenses filter 90% of blue light across the entire blue light spectrum (400 nm – 500 nm), providing optimal protection to eliminate light sensitivity, migraines, eye strain, tired and sore eyes, headaches or migraines caused by both screen use and bright LED or fluorescent light at home or in the workplace.

To ensure you have protection both day and night, we recommend that you also use our RED LENS at night to ensure a deep and restful sleep.

Protect your vision and well-being with scientifically designed, comprehensive solutions.

Lens Measurements: 46
Bridge Measurements: 22
Temple Measurements: 145

Pack of 2 glasses save a 15% on the second unit.

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Clark Series · Red Lens

Clark Series
LenteRoja.

Name: CLARK COFFEE RED
Brand: Nice Mood
Price: 109.00 EUR
Availability: InStock

Red lens certified under EN ISO 12312-1:2022, AS/NZS 1067.1:2016, and ANSI Z80.3:2018. Category 2 with 31.25% light transmission and 84% blue light blocking — maximum UV400 protection and high-contrast filter for outdoor and indoor use.

31.25%Luminous transmittance Tv

CAT 2Categoría de filtro

UV400Total UV protection

CLARK

15.96%Tsb · transmitted blue light

UV4000.00% UV transmission

TV 31.25% · Cat 2

ANSI · EN ISO · AS/NZS

UV400 · 0.00% UV

0%TV broadcast

—Grape transmitted

0Filter category

0%Blue light blocked

UV400Total UV protection

Tecnología de lente

How does it protect
your vision

The red Clark lens acts as a high-contrast filter: it blocks 84% of blue-violet light while selectively allowing the warm spectrum to pass through, reducing eye strain and providing complete protection from UV radiation.

84% Blue Light Blocking

TSB 15.96% in the 380–500nm band — only 16% of blue light passes through the lens. High-density filter that significantly reduces eye strain caused by screens, LEDs and urban artificial light.

Full UV400 protection

UVA (315–380nm) 0.00% and UVB (280–315nm) 0.00%. Complete UV blocking certified under three international standards. No UV transmission of any kind.

Verified traffic signs

Q Red 2.48/2.43, Q Yellow 1.93/1.56 — well above the minimum required. The lens particularly enhances the perception of red and warm tones of the visible spectrum.

High visual contrast

Tv 31.25% with Category 2. The red lens maximizes contrast in bright light conditions, reduces glare, and enhances visual definition outdoors in moderate to intense sunlight.

Clark Series · Red Lens · Uses

Protection
high-contrast

The red R2251 lens combines extreme UV protection with a bold and distinctive aesthetic. Designed for those who refuse to compromise on style or protection.

☀️

Exterior and sun

Cat 2 with TV 31.25%. Medium-density sun filter ideal for sunny days, outdoor activities, and high-brightness environments.

💻

Screens · high filtering

TSB 15.96% — blocks 84% of blue light from monitors and LEDs. For those seeking the maximum possible filtering for daytime use.

🎨

Fashion and lifestyle

Bold and distinctive aesthetics with high-saturation red lenses. UV400 100% blocked with full protection against ultraviolet radiation.

🌅

High brightness

The red lens reduces glare outdoors in bright light. Ideal for the beach, mountains, and environments with high solar radiation.

Certified Technical Data

Optical performance
measured and certified

Values of the certification report under three international standards. All measurements performed by an accredited laboratory.

Spectral band transmission

UV (280–380 nm)

0.00%✓ BLOCKED

Blue (380–500nm)

15.96%84% FILTERED

Verde (475–650nm)

5.26%Min. Ref. Temp.

Visible (TV)

31.25%CAT 2

Red signal

79.07%✓ APROBADO

Signal yellow

52.17%✓ APROBADO

Green light

16.53%✓ APROBADO

EN ISO 12312-1:2022PASS ✓

Filter category: 2
Tv: 31.25% PASS ✓
Q Red LED/INCT: 2.48 / 2.43 PASS ✓
Q Yellow LED/INCT: 1.93 / 1.56 PASS ✓
Tsuvb (280–315nm): 0.00% PASS ✓
Tsuva (315–380nm): 0.00% PASS ✓
Tsb (380–500nm): 15.96% PASS ✓

AS/NZS 1067.1:2016PASS ✓

Category: 2
Tv: 31.25% PASS ✓
Q Red LED/INCT: 2.48 / 2.43 PASS ✓
Q Yellow LED/INCT: 1.93 / 1.56 PASS ✓
Tsuvb (280–315nm): 0.00% PASS ✓
Tsb (380–500nm): 15.96% PASS ✓

ANSI Z80.3:2018PASS ✓

Category: General Purpose · Medium to Dark
Tv: 31.71% PASS ✓
Tsig red: 79.07% PASS ✓
Tsig yellow: 52.17% PASS ✓
UVB / UVA: 0.00% / 0.00% PASS ✓
CIE D65 (x,y): 0.489 · 0.328

Clark Series · Red Lens · Features

High contrast.
Maximum protection.

The red-lens Clarks offer maximum blue light filtering for daytime use, full UV400 protection, and a unique visual contrast for outdoors and indoors with high light exposure.

🛡️

UV400 · 0.00% transmittance

UVA 0.00% and UVB 0.00% verified under all three international standards. Complete UV protection without exception.

🔴

84% Blue Light Blocking

Tsb 15.96% — only 16% of blue light passes through the lens. The most powerful blue light filter in the Clark range, for those seeking maximum daytime visual protection.

🌞

Verified Signals PASS

Q Red 2.48/2.43, Q Yellow 1.93/1.56 — well above the minimum required. Red and yellow signals recognized with very high reliability under LED and incandescent light sources.

🎨

Category 2 · Outdoors

TV 31.25% — medium-density transmission ideal for outdoors with moderate to strong sunlight. Reduces glare and improves visual comfort in high-light conditions.

⚡

CIE D65 calibrated color

CIE D65 (x:0.489, y:0.328), L*61.53, a*54.33, b*24.54. High red saturation color profile scientifically calibrated by accredited laboratory.

🌍

Triple global certification

EN ISO 12312-1:2022 (Europe), AS/NZS 1067.1:2016 (Australia/NZ), and ANSI Z80.3:2018 (USA). Assessed and verified by an accredited laboratory in the main international markets.

Complete technical specifications

Specifications
from the Red Clark lens

Transmisión óptica

Luminous transmittance Tv: 22.03%
Blue light Tsb (380–500nm): 0.27%
Blue light Tsb blocked: 99.7%
Red Tsig: 91.44%
Yellow Tsig: 44.12%
Red Tsig: 91.44%

UV protection and certifications

UVB (280–315nm): 0.00% ✓
UVA (315–380nm): 0.00% ✓
UV400: PASS ✓
EN ISO 12312-1:2022: PASS ✓
AS/NZS 1067.1:2016: PASS ✓
ANSI Z80.3:2018: PASS ✓

CIE 1976 L*a*b* Color (D65)

L* (lightness): 61.53
a* (red-green): 54.33
b* (yellow-blue): 24.54
CIE D65 (x,y): 0.489 · 0.328

Signals — Q LED / Incandescent

Q Red: 2.48 / 2.43 ✓
Q Yellow: 1.93 / 1.56 ✓
Q Green LED/INCT: 0.24 / 0.58
Q Blue LED/INCT: 0.39 / 0.44

Preguntas frecuentes

FAQ

How much blue light do they filter? +

Tsb 15.96% in the 380–500nm band, meaning they block 84% of blue light emitted by screens, LEDs, and sunlight. It is the most powerful blue light filter in the Clark range for daytime use, maintaining a visual transmission of 31.25%.

Can I use them while driving? +

Red Clarks appear as a REF. (reference) in the driving sections of EN ISO and AS/NZS standards — they are not specifically approved for driving use. We recommend yellow-lens Clarks for driving, which do have full road certification.

How much blue light do they actually filter out? +

Tsb 37.21% in the 380–500nm band, meaning they filter 63% of blue light from screens, LEDs, and artificial urban light, while maintaining a visual transmission of 66% that does not darken the surroundings.

What's the difference with the yellow-lens Clarks? +

The yellow Clark lenses have a TV of 66.41% and a Tsb of 37.21% — more transmission and slight blue filtering, suitable for driving and all-day use. The red Clark lenses have a TV of 31.25% and a Tsb of 15.96% — higher filter density, more blue light blocking, and higher contrast for outdoor use in brighter conditions. Each one is optimized for a different need.

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