Wide angle and distortion are a classic dilemma in optical design. The wider the viewing angle, the steeper the incident angle of marginal rays becomes, leading to more severe image stretching and curvature—this is governed by the laws of physics. It is not uncommon for ordinary ultra-wide-angle lenses to exhibit distortion easily exceeding 10%–30%. However, the JSD2122 achieves a 200° diagonal field of view while keeping distortion controlled at just 7.07%, overcoming significant technical challenges.

Achieving this balance likely relies on the integration of multiple cutting-edge technologies:

Application of Complex Aspherical Lenses: Extensive use of high-precision aspherical lenses effectively corrects spherical aberration and field curvature, suppressing distortion at the optical path's source.

Use of Abnormal Dispersion Glass Materials: Special dispersion glass significantly improves the convergence of light at different wavelengths, reducing edge chromatic aberration and color distortion commonly found in wide-angle lenses.

Innovation in Core Optical Structure: Possibly adopting an inverted telephoto or similar complex optical design, which first expands the field of view and then applies precise correction, laying the foundation for distortion control.

Real Strength Behind the Parameters

Every parameter of the JSD2122 points to solid imaging performance and broad applicability. With a total track length (TTL) of 28.62mm, its relatively compact physical size supports miniaturized and slim design trends in devices.

Analysis of Broad Application Scenarios

The characteristics of the JSD2122 enable it to address specific challenges across various fields:

Security Surveillance: Ideal for environments such as bank halls, airport terminals, and large warehouses that require single-lens, dead-angle-free coverage of extensive areas. The 200° field of view significantly reduces the number of cameras needed, lowering system complexity and costs. Meanwhile, the 7.07% distortion rate ensures highly recognizable key information (e.g., faces, license plates) even at the edges, providing a reliable image foundation for AI analysis.

Automotive Surround-View Systems: Serving as a "front-view" or "rear-view" wide-angle module in vehicle panoramic systems, its broad field of view greatly reduces blind spots in the front and rear. Optimized distortion control results in more natural stitched panoramic images with minimal object deformation, enhancing safety during reversing and navigating narrow roads.

Industrial Vision and AI Recognition: Suitable for fast positioning, presence detection, or people counting on production lines requiring large fields of view. The wide angle covers longer conveyor belt ranges, improving inspection efficiency, while low distortion ensures positioning accuracy in visual guidance and measurement precision.

VR/AR and Special Photography: Offers a unique immersive first-person perspective for virtual reality content creation and creative photography, enabling strong visual impact.

With its 200° ultra-wide-angle capability and excellent distortion control, the JSD2122 lens demonstrates technical prowess in pursuing image authenticity across vast fields of view. It is not merely an optical component but a key enabler for technological upgrades in security, automotive, industrial vision, and beyond.