The JSD3020 reconstructs the performance boundaries of M12 lenses with its 4G4P (4 Glass, 4 Plastic) aspheric stacking and IP69 extreme protection rating. Its value lies not only in the breakthrough parameters of a 121° diagonal field of view (FOV) and <-6.2% distortion, but more significantly in achieving an integrated solution across four key dimensions: wide-angle coverage, large aperture, low distortion, and high environmental protection.

The Trade-off Triad: Wide Angle, Large Aperture, and Distortion Control

1.Engineering Breakthrough: The 4G4P Optical Architecture

• Dual Aspheric Stack Design:Four glass elements control fundamental chromatic aberration and spherical aberration. Four high-precision thermally compressed molded plastic aspheric elements employ specialized surface optimization for the peripheral field, suppressing diagonal distortion to <-6.2% (compared to the average <-15% for conventional M12 wide-angle lenses), while simultaneously achieving a 121° diagonal FOV.

• Optical Power Distribution Strategy: The front group utilizes negative focal length elements to expand the viewing angle, while the rear group employs positive focal length elements to compress aberrations. This configuration significantly enhances peripheral illumination uniformity within the compact total track length (TTL) of 29.56mm.

2.Scenario Value: F2.0 Large Aperture

• Low-Light Signal-to-Noise Optimization: Delivers usable images even at 0.001 Lux illumination levels (e.g., underground garages, nighttime industrial zones), reducing dependency on infrared supplementation.

• Depth of Field (DOF) vs. Motion Blur Trade-off: The 3.05mm focal length combined with an F2.0 aperture yields a DOF of 15cm at a working distance (WD) of 30cm. This supports high-speed moving object detection on conveyor belts (tolerating speeds ≤1.8m/s), avoiding system latency caused by frequent refocusing.

3.Engineering Challenges & Solutions in Wide-Angle Optics

• FOV vs. Resolution Trade-off: Achieving a 113° horizontal FOV necessitates sacrificing some peripheral resolution. MTF slope control technology ensures central resolution exceeds 0.6 at 100 lp/mm (compatible with 8MP sensors), with peripheral resolution >0.3.

• CRA (Chief Ray Angle) Matching: The lens CRA is designed at 12°, precisely matching the microlens tilt angle of sensors like the IMX678 (1/1.7-inch format), preventing peripheral color shift.

IP69 Protection: Optical Stability Design for Extreme Environments

• Fully Sealed Lens Barrel: The lens assembly employs JSD's proprietary hermetic sealing design, withstanding 100 Bar water jetting. Suitable for applications like high-pressure washing in food processing equipment and water immersion for construction vehicles.

• Thermal Drift Suppression: Controls focal shift to <0.03mm across a -10°C to 70°C operational temperature range, preventing defocusing at low temperatures.

Application Scenarios:

1.Industrial Automation: Synergy of Wide-Angle and Large Sensor Format

• Machine Assembly Visual Guidance: A single lens covers an 80cm×50cm work area (at 60cm WD), simultaneously locating coordinates for 16 components, replacing multi-lens array systems and reducing hardware costs by 30%.

• Semiconductor Wafer Inspection: Paired with a 1/1.7-inch sensor and 8MP resolution, identifies defects with line widths ≤5μm (e.g., scratches, contamination). Distortion <-6.2% ensures measurement error <0.1%.

2.Vehicle Systems: Robustness for Dynamic Environments

• Mining Truck Cabin Monitoring: A 75° vertical FOV (Vfov) covers driver hand operations and dashboard status. The F2.0 aperture delivers low-noise images even in the dim light of tunnels.

3.UAVs & Underwater ROVs: Unified Lightweighting and Pressure Resistance

• Aerial Surveying: Covers 0.8km² area (at 100m altitude) per frame. Weight ≤35g reduces hovering power consumption.

• Deep-Sea Pipeline Inspection: IP69 protection withstands 60-meter water pressure. The wide-angle lens minimizes the frequency of ROV attitude adjustments, extending battery life.