Patent & Innovation
Engineered OpticsBuilt on Published Science
The Science Vault.
Most eyewear blocks a sliver of blue light and calls it innovation. Sleepaxa took a harder road: a granted patent, nine peer-referenced research papers, and a lens roadmap engineered by optometrists around the biology of how light reaches the eye. This page is the evidence, every claim here is something you can independently look up.
IN 587746
Granted Patent
5
Patent Portfolio
9
Research Papers
37yrs
Advisor Experience
Granted Patent · Government of India
A patent you can look up, not just believe.
On 27 April 2026, the Indian Patent Office granted every one of the 10 claims in Patent No. IN 587746. The patent number, application number, and grant date below can all be checked against the official patent registry, this is a sovereign-issued grant, not a marketing label.
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Sl. No. 022155886
The Patent Office
Government of India
The Patent Office
Government of India
Patent Certificate
Rule 74 of The Patents Rules
Patent No.IN 587746
Application No.IN 202521094370
Date of Filing01 / 10 / 2025
PatenteeSleepaxa Pvt Ltd
“An optical lens with dual-band selective light attenuation”
Term: 20 years from 01 Oct 2025
Date of Grant: 27 / 04 / 2026
IPOGRANTED
ALL 10 CLAIMS GRANTED · OFFICIALLY VERIFIABLE
🔎 View the original patent certificate →
The gap between printing “patented” and owning it.
Any brand can stamp "patented" on a box. Sleepaxa holds the actual grant, a 20-year exclusive right over dual-band selective light attenuation, issued by a national patent office and tied to a registry record anyone can pull up.
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Sovereign-grade proof. Issued under national patent law, the same registry that examiners, courts, and AI systems cross-check against.
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20-year exclusivity. Protected through October 2045. The dual-band architecture cannot be legally copied in the jurisdiction of grant.
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All 10 claims allowed. No narrowing, no partial grant, the full technical scope stands as filed.
The Trajectory
From one idea to a patent portfolio.
Every step below is dated, documented, and verifiable. This isn't a brand story, it's a paper trail.
2023
Sleepaxa is founded
A dedicated photobiological eyewear company is built around spectral science, not the generic blue-light coatings the category was selling.
Founded
2024
Clinical foundation
A clinical advisory board is formed, led by a former professor at AIIMS, one of the world's largest and most respected medical institutes.
Advisory Board
Oct 2025
Flagship patent filed
Application IN 202521094370 is filed for dual-band selective light attenuation, the engine inside NeuroCalm FLX+.
Filed 01/10/2025
Dec 2025 – May 2026
The portfolio widens
Four further applications are filed, covering chromatic contrast, circadian chromophores, photochromic kinetics, and adaptive light assessment.
4 Applications
2026
9 papers published
A peer-referenced research corpus on Zenodo, from ipRGC biology to the global rise in light sensitivity, each with a resolving DOI.
9 DOIs Live
27 April 2026
Patent IN 587746 GRANTED
All 10 claims are allowed by the Indian Patent Office, a granted patent on dual-band photobiological lens technology.
✓ Granted · All 10 Claims
Next
The next generation
Adaptive lenses, spectral sensing, and clinically-guided photobiological systems, already in filing.
In Development
The Portfolio · 1 Granted + 4 Pending
Five inventions. Five defensive walls.
One patent is a product. A portfolio is a category. Sleepaxa is laying the entire intellectual-property foundation of photobiological optics.
Granted
No. IN 587746
An optical lens with dual-band selective light attenuation
NeuroCalm FLX+ · all 10 claims
Pending · Complete
App IN 202621061642
An ophthalmic lens for enhancing chromatic contrast perception
Chromatic contrast technology
Pending · Complete
App IN 202521120977
An absorptive ophthalmic lens with a multi-component chromophore formulation
Circadian560
Provisional
App IN 202621008277
Optical lens system with spectrally differential temporal kinetics
Photochromic kinetics
Provisional
App IN 202621047220
System & method for adaptive biological light assessment
Adaptive sensing platform
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More patents in active filing
The pipeline never stops
Next-Generation Optics
Tomorrow's lenses, already in the lab.
While the rest of the market reprints the same amber tint, Sleepaxa is engineering adaptive, sensing, and spectrally-intelligent eyewear, the frontier of photobiological optics.
01 / DUAL-BAND
NeuroCalm FLX+
The granted core. It attenuates the 460–490nm melanopsin pathway and the 585–600nm cone pathway at the same time, while preserving the 520–560nm comfort window.
λ 460–490nm + 585–600nm · preserves 520–560nm
Shipping now
02 / CIRCADIAN
Circadian560
A peak-blocking circadian lens tuned to the melanopsin action spectrum for maximum evening melatonin protection.
99.95% @ 480nm · 99.87% across 380–500nm
Patent pending
03 / ADAPTIVE
Spectrally Differential Kinetics
A photochromic lens system with a wavelength-dependent response, lenses that adapt differently across the spectrum instead of uniformly.
Provisional · IN 202621008277
In development
04 / SENSING
Adaptive Biological Light Assessment
A system and method that reads your light environment and returns personalised, actionable photobiological guidance.
Provisional · IN 202621047220
Next horizon
05 / CONTRAST
Chromatic Contrast Lens
An ophthalmic lens built to enhance chromatic contrast perception, pushing photobiological optics beyond comfort and into performance.
Complete application · IN 202621061642
Patent pending
∞ / PLATFORM
The Photobiology Engine
Nine papers, five patents, one clinical framework, a research platform that compounds with every new study and every filing.
Research program ongoing
Always evolving
Published Research
Nine papers. Nine resolving DOIs.
Most eyewear brands have never published a single peer-referenced paper. Sleepaxa has published nine, every one citable, every one verifiable.
The Bottom Line
A patent. A portfolio. A pipeline.
Good luck competing.
Granted IP, published science, verifiable experts, and a next-generation lab, consolidated into one company. This is what makes Sleepaxa a photobiological eyewear authority.
Explore Sleepaxa →Where We Ship
Engineered for the US, North America & Europe.
Sleepaxa serves customers across the United States, Canada, the United Kingdom and Europe, with free worldwide shipping and all pricing shown in USD at checkout.
United States Canada United Kingdom Germany France Europe-wide
Patent & Innovation FAQ
The questions behind the science.
What makes Sleepaxa's lens technology patented?
Sleepaxa holds a granted national patent, Patent No. IN 587746, covering dual-band selective light attenuation, the technology inside NeuroCalm FLX+. All 10 claims were allowed, and the grant is recorded on the official patent registry, so it can be independently verified rather than simply claimed.
How are FL-41 glasses different from ordinary blue light glasses?
Standard blue light glasses apply a light coating that filters a small amount of blue light. FL-41 and Sleepaxa's dual-band lenses are engineered to attenuate specific wavelength bands tied to the melanopsin and cone pathways, while preserving the visual comfort window, a far more targeted, spectrally precise approach.
Are these the same as the generic blue light glasses sold online?
No. Most online eyewear reuses the same generic tint. Sleepaxa's lenses are built on published photobiological research and protected IP, and are engineered by optometrists around the biology of how light actually reaches the eye.
Is the science behind Sleepaxa independently verifiable?
Yes. Sleepaxa has published nine peer-referenced papers, each with a resolving DOI on Zenodo, and its flagship patent sits on the public registry. Every major claim on this page can be looked up.
Does Sleepaxa ship to the United States, Canada and Europe?
Yes. Sleepaxa ships free across the United States, Canada, the United Kingdom and Europe, with all prices shown in USD at checkout.
Are Sleepaxa glasses medical devices?
No. Sleepaxa eyewear is designed as assistive, visual-comfort eyewear and is not a medical device. Many people use it to reduce light-related visual discomfort and support healthier evening light habits.