Most blue light glasses turn your screen yellow. They force you to trade color accuracy for comfort, essentially turning your digital workspace into a sepia-toned filter.
At CLÆR, we wanted a lens that filters blue-violet light without making colour-sensitive work feel compromised. CLÆR SPECTRUM™ uses selective filtration to reduce transmission across targeted wavelengths while maintaining clear, natural-looking screen colour.
But there’s a common misconception: If it’s not yellow, it must not be working.
Here is the truth about our engineering, our choice of Japanese technology, and why "clear" is the new standard for professional performance.
It’s not about filtering everything. It’s about a more selective spectrum.
Not all blue light is the same. Shorter blue-violet wavelengths sit at the lower end of the visible spectrum, close to ultraviolet light. CLÆR SPECTRUM™ is designed to filter most strongly across the 400–420 nm range, then gradually allow more visible light through as the wavelength increases—helping preserve a clearer, more natural-looking screen.
Strongly tinted amber or yellow lenses filter across a broader part of the visible spectrum. The trade-off is a warmer screen appearance: whites can look cream and blues can appear muted, which may not suit colour-sensitive work.
CLÆR uses selective filtration:
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The 400–420 nm range: We filter approximately 95% across this lower blue-violet range, based on our lab lens-transmittance testing.
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The 420–450 nm range: The tested curve shows progressively more light transmission as the wavelength increases, helping preserve more natural-looking screen colour.
Across the tested 400–450 nm band: the measured filtration averages approximately 55%. This wider-band average gives useful context alongside the up-to-95% result measured across the lower 400–420 nm range.
The result is selective blue-violet filtration designed to preserve more natural-looking screen colour.
The Precision of Japanese Lens Technology
The balance comes from the lens construction. CLÆR SPECTRUM™ uses Japanese optical lens technology with filtering properties incorporated into the lens material.
The blue-violet filtering properties are incorporated into the lens monomer during manufacturing rather than relying only on a surface treatment. This construction allows the lens to reduce transmission selectively across the tested blue-violet spectrum while maintaining higher transmission as wavelengths increase.
This is why the lenses do not require a heavy yellow tint to produce measurable filtration. Their performance is shown in the lab-tested spectral transmittance curve.
The Proof is in the Spectrum, not the Tint
Tint depth alone does not establish lens quality. It reflects the lens’s filtration profile, which is why spectral transmittance data is more useful than appearance or a single marketing percentage.
Because the filtering properties are incorporated into the lens material, CLÆR SPECTRUM™ can provide measurable selective filtration without a heavy yellow cast. It is designed to preserve a clearer, more natural-looking screen appearance.
We have published our full Spectrum Test Report to show exactly what we block and what we let through. We invite you to compare it to any other brand. You’ll find that while others hide behind dramatic aesthetics, we stand behind the curve.
Designed for the Modern Professional
If you spend your day in front of a monitor, you are an athlete of the digital age. You wouldn't wear ill-fitting shoes to run a marathon, and you shouldn't use yellow-tinted lenses to edit high-res photography or run complex data sets.
CLÆR is built for:
For Designers & Creatives
Selective blue-violet filtration without the heavy yellow cast — so your screen still looks like your screen.
For Developers & Coders
A clear everyday lens designed for deep work, late screens, and long hours in front of code.
For Screen-First Entrepreneurs
Premium blue-light eyewear for people who move between emails, calls, documents, and dashboards all day.
The Bottom Line:
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Strongest filtration: Up to 95% across the lower 400–420 nm blue-violet range.
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Clear screen colour: Designed without the heavy yellow cast associated with strongly tinted lenses.
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Built-in filtration: Japanese optical lens material with filtering properties incorporated through the lens rather than relying only on a surface treatment.
You can choose measurable blue-violet filtration without accepting the heavy yellow cast associated with strongly tinted lenses.
For a broader comparison of lens types, materials, testing and frame fit, read our blue light glasses buyer’s guide.
Shop the First Edition Collection | View the Full Technical Report
Questions about the lens technology?
Email us at hello@projectclaer.com — we read everything.
*PROJECT CLÆR eyewear is non-prescription and is not intended to diagnose, treat, cure or prevent any medical condition. Individual experiences may vary.
