Improving contrast before software
A machine vision filter can reduce background light before the image reaches the sensor, often improving stability more than software thresholding alone.
Machine Vision Filters for Inspection Imaging
Compare machine vision filters used to improve contrast, suppress unwanted light, and isolate useful illumination bands in industrial camera systems.
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Shipped to 60+ Countries
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Selected Models
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How to Choose
Match the filter to the illumination wavelength and camera sensitivity. For monochrome systems, prioritize contrast and background rejection. For color systems, confirm color balance, IR leakage, lens mount format, and environmental durability.
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Machine Vision Filters
OPTOStokes machine vision filters enhance imaging performance for industrial inspection, quality control, barcode scanning, and robotic vision applications. IR cut filters and bandpass filters in this section improve contrast, reduce glare, and enable precise color or wavelength-specific detection for Basler, FLIR, and other industrial camera systems.
View full Optical Filters for Machine Vision
IR Cut Filters
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| Model | Cut-Off Wavelength (nm) | Transmittance | Transmission Range (nm) | Optical Density | Note |
|---|---|---|---|---|---|
| STO-IR650 | 650±5 | T≥90% | 410-630 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR660 | 660±5 | T≥90% | 410-640 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR670 | 670±5 | T≥90% | 410-650 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR680 | 680±5 | T≥90% | 410-660 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR690 | 690±5 | T≥90% | 410-670 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR700 | 700±5 | T≥90% | 410-680 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR710 | 710±5 | T≥90% | 410-690 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR720 | 720±5 | T≥90% | 410-700 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR750 | 750±5 | T≥90% | 410-730 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR780 | 780±5 | T≥90% | 410-760 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR790 | 790±5 | T≥90% | 410-770 | OD≥3@350-1100 | Other parameters can be customized |
| STO-IR800 | 800±5 | T≥90% | 410-780 | OD≥3@350-1100 | Other parameters can be customized |
Energy Matching Filters
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| Model | Mismatch Degree | Note |
|---|---|---|
| STO-X-Filter | ≤3% | Customizable forhigher requirements |
| STO-Y-Filter | ≤2% | Customizable forhigher requirements |
| STO-Z-Filter | ≤2% | Customizable forhigher requirements |
Related Engineering Notes
Matching LEDs and camera sensors
Select filters around the illumination wavelength and camera response curve. IR cut, visible bandpass, and NIR pass filters solve different inspection problems.
Factory environment notes
Consider dust, angle, vibration, and lighting variation when selecting filter size, mounting, and coating durability.
FAQ
Why use filters in machine vision?
Filters improve image consistency by passing useful illumination and rejecting ambient or unwanted wavelengths.
Are IR pass filters useful for inspection?
Yes. IR pass filters can reduce visible-light interference and improve contrast for selected materials and lighting conditions.
Can filters be made for camera mounts?
Yes. Custom diameters, thicknesses, and shapes can be supplied for camera holders, lens mounts, and OEM inspection modules.
Quality & Compliance
Documentation-ready optical filter supply
For OEM programs, laboratory instruments, and industrial systems, OPTOStokes keeps quality, material compliance, and engineering support visible from the start of supplier evaluation.
Quality system
ISO 9001 managed production
Process control, inspection records, and repeatable coating workflows for production optical components.
Material compliance
RoHS / REACH support
Compliance documentation can be prepared for qualified projects and regulated supply chains.
Factory-direct
Custom coating and dimensions
Wavelength, FWHM, substrate, AOI, size, and mounting requirements can be reviewed with engineering.
Procurement ready
Quote and data review
Share target wavelength, blocking level, transmittance, and drawing requirements for a focused quote.
Ready to Find Your Filter?
Our engineers will help you select the perfect optical solution.