Limited-time discounts on our UV, VIS, NIR, and IR optical filters. Standard models are in stock for same-day shipping, ideal for urgent projects. Need a custom filter for your fluorescence setup? Our engineers can design it to your specifications.
Discover our competitive advantage: full-spectrum UV-IR coverage, cost-effective China-based OEM manufacturing, and a dependable supply chain for high-volume optical filters. Get reliable quality now.
Why choose us
Broad application coverage
We offer a full range of standard and custom optical filter solutions tailored for UV, VIS, NIR, IR, and fluorescence microscopy uses
Comprehensive product lineup
Our portfolio includes bandpass filters, longpass filters, shortpass filters, dichroic mirrors, neutral density filters, and fluorescence filter sets—all engineered for precision and reliability that meet global standards
Competitive value proposition
Leveraging our China-based manufacturing facility, we deliver cost-effective pricing, flexible production capabilities, and fast lead times
Trusted supply reliability
We excel in unmatched product quality, diverse product options, and consistent supply chain performance for your peace of mind
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In-Stock Product Models
About Us
OPTOStokes: Your Partner for High-Performance Optical FiltersOPTOStokes is your trusted source for superior-quality optical filters. We provide a comprehensive range of standard and custom solutions engineered for demanding applications across the UV, VIS, NIR, and IR spectra, including advanced fluorescence microscopy.Our portfolio includes precision bandpass, longpass, shortpass, and neutral density filters, alongside dichroic mirrors and optimized fluorescence filter sets, all meeting rigorous international standards. Our modern, China-based factory ensures competitive pricing, flexible manufacturing, and rapid delivery, guaranteeing a reliable supply chain from R&D to volume production.Choose OPTOStokes for an unmatched combination of optical excellence, product variety, and supply dependability.Industry PartnersWe work with related optical component manufacturers and material suppliers serving infrared optics, optical coatings, laser systems, crystals, and photonics app...
UV to IR Stock & Custom Designs International Quality, Competitive Pricing
Need help selecting the right optical filter?
Contact usExplore OPTOStokes' successful OEM case studies in Fluorescence, Imaging, and IR systems. See our advanced manufacturing capabilities, high-volume production control, and reliable quality assurance process.
Case
Application Case: Filter-Based NIR Spectrometer for Gra
The OPTOStokes tags index includes directly usable internal topics such as near infrared, NIR spectroscopy, sampling modes, transmission, reflectance, Beer-Lamb......
The Essential Role of High-Precision IPL Bandpass Filte
OPTOStokes provides high-precision IPL Bandpass Filters for optimal spectral performance. Discover why filter quality, spectral purity, and custom engineering o......
Optical Filters for Machine Vision Applications
High-precision optical filters for machine vision enhance image contrast and clarity. Our IR cut-off and bandpass filters, available in stock or custom designs,......
Understanding Light Pollution: Causes, Effects, and Sol
Understand the causes, ecological and health impacts, and solutions of light pollution in 2025. OptoStokes's optical filters help reduce light damage and improv......
Fluorescence Optical Filters for CY5 and CY5.5 Imaging
High-precision fluorescence optical filters for CY5 and CY5.5 microscopy enhance image clarity. Our bandpass and custom filter sets deliver superior performance......
How to Clean Optical Filters for Peak Performance
Learn how to clean optical filters and components for optimal performance. Our expert tips ensure scratch-free maintenance, with custom and stock filters meetin......
Precision Optical Filters for Spectroscopy & Imagin
High-precision optical filters for spectroscopy, imaging, and laser applications. Our bandpass and IR cut-off filters ensure superior performance, available in ......
Fluorescence Microscopy Filters for High-Precision Imag
High-precision fluorescence microscopy filters enhance imaging clarity. Our custom and stock optical filters ensure optimal wavelength control, meeting global s......
OPTOStokes offers high-quality optical filters (bandpass, longpass, ND, fluorescence). OEM solutions, in-stock options & custom designs—precision for global clients.
Products
Stay updated with OPTOStokes’ optical filter news: industry insights, company updates & tech trends. Access latest resources for optical solutions.
News
05-20, 2026
Optical Filter Coating Thickness Uniformity | OPTOStokes
Learn about optical filter coating thickness uniformity, its critical impact on filter performance, and industry standards for different filter types from OPTOS......
Details
04-20, 2026
NIR Quantitative Analysis: Transmission vs Reflectance
Learn how NIR quantitative analysis works, why transmission follows Beer-Lambert law more directly, and why diffuse reflectance needs stricter control of sample......
Details
04-13, 2026
Why Near Infrared Analysis Became Practical
Compare NIR transmission, diffuse reflectance, and transflectance modes for industrial analysis. Learn which sampling method fits powders, liquids, pastes, and ......
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04-07, 2026
Title: Near Infrared Basics for NIR Spectroscopy & Filte
Learn what near infrared (780–2500 nm) really measures, why NIR bands overlap, and how to choose optical filters that improve signal separation and analysis....
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