2.2μm Large-Pixel Infrared USB Camera Module: Selection Reference & Objective Analysis
November 20, 2025
If you need a USB camera module focused on imaging in dark environments, this product with 2.2μm large pixels + 9 940nm infrared LEDs deserves attention — its core advantages center on "low-light practicality". Below is a rigorous analysis and selection advice:
Core Advantages
Reliable Low-Light Imaging: The 2.2μm large pixels enhance infrared light-sensing efficiency. When paired with a narrow-bandpass filter, noise is reduced in dark environments, and details are retained better than small-pixel products.
Stress-Free Compatibility: Equipped with UVC protocol + USB2.0 interface, it supports plug-and-play use with multiple systems. Manual focus + wide depth of field (1cm~∞) adapts to scenarios like close-up shooting and long-distance monitoring.
Reliable Quality: SMT technology + AA (Active Alignment) process ensure stability. It has passed international certifications including CE, FCC, and RoHS, and works normally in low-temperature and humid environments.
Objective Limitations
Manual Focus Requirement: Manual adjustment is needed for focus, making it unsuitable for scenarios requiring rapid switching of shooting distances.
Limited Infrared Coverage: The coverage of infrared fill light is limited; image clarity naturally degrades in dark environments beyond 10 meters.
No Automatic Exposure: There is no automatic exposure adjustment, so manual parameter adjustment is required for scenarios with extreme low-light/strong-light alternations.
Selection Advice
Recommended Scenarios: Nighttime pet monitoring, nighttime inspection of cultural relic storage rooms, vehicle blind-spot monitoring, baby room night vision — scenarios that demand high low-light detail quality and have no frequent focus adjustment needs.
Not Recommended Scenarios: Real-time live streaming requiring auto-focus, long-distance dark monitoring (＞10 meters), outdoor mobile shooting that needs rapid adaptation to light changes.
Key Selection Tip: If your needs focus on "stable low-light imaging + multi-scenario compatibility" and you can accept manual focus adjustment, this is a cost-effective choice. If you pursue fully automatic operation or ultra-long-distance infrared coverage, it is recommended to match it with a dedicated infrared fill light device or choose a higher-end model.
Do you have specific usage scenario needs? Leave a comment, and we’ll help you refine the adaptation plan!
