5MP 25mm IR Correction M12 Fixed Focus Lens, Wide Temperature for Machine Vision and Security Monitoring

• Model: JY-12A25FB-5MPIR

• Resolution: 5 megapixels (supporting up to 2592 × 1944 output)

• Compatible sensor sizes: 1/2″ (primary), 1/3″, and 1/4″ (with corresponding field-of-view and distortion performance)

• Focal length: 25 mm

• Aperture: Fixed F2.4

• Mount: Standard M12 thread

• Field of view (diagonal × horizontal × vertical):

 – 1/2″ sensor: 18.3° × 14.7° × 11.1°

 – 1/3″ sensor: 13.8° × 11.1° × 8.3°

 – 1/4″ sensor: 10.4° × 8.3° × 6.3°

• Optical distortion: ≤1.13% (1/2″), ≤0.64% (1/3″), ≤0.36% (1/4″)

• Chief ray angle (CRA): ≤7.4°

• Minimum object distance: 0.3 m

• Dimensions: Φ14 × 20.4 mm

• Mass: 5 g

• Optical back focal length (BFL): 11.98 mm

• Mechanical back focal length (MBFL): 6.1 mm

• Focus architecture: Day/night shared-focus (IR-corrected)

• Optical configuration: Fixed aperture; no focusing or zoom mechanism

• Operating temperature: −20 °C to +60 °C

1. Dual-band focus consistency: Precision IR-corrected optical design ensures identical focus planes for visible and near-infrared (750–950 nm) wavelengths—eliminating focus shift during IR illumination transition and maintaining image clarity in both daytime and low-light night-vision modes.

2. High-resolution imaging with minimal geometric distortion: Optimized for 5 MP sensors, the lens delivers superior modulation transfer function (MTF) performance and tight distortion control (<1.13%), supporting="" applications="" demanding="" metrological="" accuracy="">

3. Enhanced low-light sensitivity: The F2.4 aperture maximizes photon collection efficiency, improving signal-to-noise ratio in dim environments and reducing dependency on high-power IR illuminators.

4. Compact and integrable form factor: With industry-standard M12 mounting, sub-gram weight, and minimal footprint, the lens is ideal for miniaturized camera modules, edge AI vision systems, and battery-powered IoT endpoints.

5. Passive reliability: Fully static optical architecture—no actuators, motors, or adjustable elements—ensures immunity to vibration, shock, and mechanical wear; suitable for continuous-duty industrial and outdoor deployments.

6. Broad environmental resilience: Validated for stable optical performance across −20 °C to +60 °C, including thermal cycling, making it appropriate for uncontrolled outdoor, vehicular, and factory-floor installations.

1. Intelligent security & surveillance: Deployed in long-range facial recognition gateways, perimeter intrusion detection, license plate recognition at entrances, and corridor/warehouse night-vision monitoring. The 25 mm focal length enables detailed capture of facial features and vehicle identifiers at medium-to-long distances; day/night focus stability prevents image blur during IR-assisted switching.

2. Industrial machine vision: Applied in workstation-based tasks including surface defect detection, precision part dimensioning, high-speed QR/barcode decoding, PCB inspection, and material classification. Low distortion preserves measurement linearity; 0.3 m minimum focus distance accommodates close-proximity imaging; wide-temperature tolerance ensures operational consistency amid workshop thermal fluctuations.

3. Embedded AI and IoT vision systems: Integrated into AI-accelerated visual acquisition modules, smart cabinet recognition units, environmental monitoring terminals, and outdoor edge cameras. Its miniature size and lightweight profile facilitate seamless embedding into resource-constrained intelligent hardware platforms.

4. Specialized IR imaging systems: Utilized in dual-band (visible + IR) acquisition platforms and active IR inspection equipment. The IR-corrected optical path guarantees diffraction-limited performance in the near-infrared spectrum, fulfilling stringent requirements for 24/7 all-weather visual sensing.

5. Transportation and auxiliary vision: Employed in roadside assistance systems, vehicle surround-view monitoring, and infrastructure-mounted image capture devices. The ruggedized fixed-focus design withstands road-induced vibration; wide-temperature capability ensures year-round functionality under extreme seasonal conditions.