Technical Selection Recommendation: 3.9mm OV9734 USB Endoscope Camera Module – Precisely Adapted to Multi-Scenario Detection Needs

For visual inspection in confined spaces, sharing field-validated specs of a 3.9mm USB endoscope module:

Built on OmniVision OV9734 sensor, the module delivers stable 30FPS at 1280×720 resolution, with PureCel® backside-illuminated technology ensuring low-light sensitivity. The optical system features a 1.08mm EFL paired with F4.0 aperture, achieving 95° diagonal FOV with TV distortion < -10%. Key characteristic: 10-100mm wide depth of field covers macro details to deep-cavity observation without mechanical adjustment.

Structurally, the SUS316L stainless steel housing achieves IP67 rating via laser welding and epoxy potting. The 4×0402 LED array supports PWM linear dimming, keeping housing temperature rise under 3°C. USB 2.0 UVC protocol enables true plug-and-play—verified driver-free on Windows, Linux, macOS, and Android.

• Automotive engine inspection: Viewing piston ring carbon deposits through spark plug holes, reaching 50μm resolution at 15-20mm working distance
• Aerospace hydraulics: CFM56 engine maintenance, performing 360° corrosion detection inside Φ10mm tubes
• Injection mold maintenance: Real-time cooling channel scale observation at 120°C mold temperature