M12 Lenses are miniature lenses for embedded cameras, computer vision, and human viewing...
Bandpass, IR cut, and dualband day/night filters engineered for CMOS sensors. Integrate directly with M12 lenses for compact camera modules.
From single-wavelength bandpass filters to dual bandpass day/night solutions, our optical filters provide spectral control for embedded vision. Available with M12 lens bonding services for turnkey camera module integration.
Essential definitions for selecting the right filter for your machine vision application
Transmits a specific wavelength range while strongly attenuating wavelengths across its specified blocking range. Defined by center wavelength (CWL) and bandwidth (FWHM). Essential for isolating LED or laser illumination in machine vision to maximize signal-to-noise ratio.
Blocks infrared wavelengths above ~650nm to produce accurate color reproduction matching human vision. Prevents IR light from desaturating colors on CMOS sensors that are inherently IR-sensitive.
Dual bandpass filter transmitting visible (400-700nm) and NIR (typically 850nm or 940nm) bands simultaneously. Eliminates mechanical IR cut switchers for 24/7 surveillance with automatic day/night transition.
Transmits wavelengths above a specified cut-on point while blocking shorter wavelengths. Used for NIR imaging, fluorescence applications, and blocking visible light for covert illumination systems.
Transmits wavelengths below a specified cut-off point while blocking longer wavelengths. Blocks IR contamination in visible imaging or isolates UV/blue wavelengths for specialized inspection applications.
Reduces light intensity approximately uniformly across its specified band (typically visible) with minimal color shift. Used to prevent sensor saturation in high-brightness conditions or extend exposure times for motion blur applications.
Bandpass, IR cut, dualband, and specialty filters for embedded vision applications
Measured spectral response curves for Commonlands optical filters. Click to download the complete dataset.
Spectral transmittance curves for bandpass and dualband filters. Click image or button below to download Excel data.
Understanding when to use dual bandpass day/night filters versus standard IR cut filters
| Characteristic | Regular IR Cut Filter | Dualband Day/Night Filter |
|---|---|---|
| Daytime Operation | Blocks all IR for accurate color imaging | Passes visible band for color imaging |
| Nighttime Operation | Requires mechanical removal of filter (ICR switcher) | Passes NIR band (850nm or 940nm) simultaneously |
| Moving Parts | Yes - IR cut filter switcher required | None - fully solid-state operation |
| System Complexity | Higher - motor driver, mechanical assembly | Lower - single fixed filter element |
| Failure Modes | Motor failure, mechanical wear, stuck filter | Minimal - no moving components |
| Color Accuracy | Excellent - full IR blocking during day | Good - slight NIR leakage in visible band |
| Cost | Filter low cost, but ICR switcher adds expense | Higher filter cost, lower total system cost |
| Best Applications | Color-critical imaging, studio cameras | 24/7 surveillance, automotive, outdoor IoT |
Eliminate separate filter holders by bonding optical filters directly to M12 lens assemblies. Our cleanroom filter bonding service creates compact, sealed optical modules for embedded vision applications where space and reliability are critical.
Filter-lens integration reduces dust contamination risk, helps maintain optical alignment, and simplifies camera module assembly. Available for prototype through volume manufacturing with optical testing.
$100 one-time NRE + per-unit bonding fee. Add filters and lenses to cart, then add the gluing service for your quantity.
Add Filter Gluing Service to CartFor applications requiring complete IR blocking during daytime, we also offer mechanical IR cut filter switchers (ICR) that physically move the filter in and out of the optical path.
Browse IR Cut Switchers & Accessories
Need a specific center wavelength, bandwidth, or form factor not in our standard catalog? Commonlands offers custom optical filter manufacturing for projects exceeding 1,000 pieces. Our coating partners can develop custom spectral profiles to match your exact requirements.
Custom optical filter development requires non-recurring engineering (NRE) fees to cover coating design, test runs, and spectral verification. NRE is typically quoted based on complexity and is often credited against production orders. Minimum order quantities for custom filters start at 1,000 pieces. Contact our engineering team for a detailed quote.
Choosing the optimal optical filter requires understanding your application's spectral requirements, environmental conditions, and integration constraints. This engineering guide covers the key selection criteria for machine vision and embedded camera applications.
Optimized filter solutions for every embedded vision vertical
24/7 monitoring with automatic day-to-night transition
Structured light and SLAM-optimized filtering
Driver monitoring and surround view systems
Industrial inspection and quality control
UAV payload and agricultural imaging
Intelligent checkout and inventory tracking
Common questions from embedded vision engineers
Connect with our California-based engineering team for custom wavelengths and filter-lens integration
