Low Distortion Lens – M402315006522R

M402315006522R is 5-Megapixel Low distortion 1/5″ CCTV lens with 77° diagonal F.O.V., F2.2 aperture, M5x0.25 mount, for advanced security surveillance.

2.3mm M5 5MP Miniature Low Distortion Wide Angle Lens

This 2.3mm M5 5MP miniature low distortion wide angle lens is designed for 1/5″ image sensors, delivering a 77° diagonal field of view with less than 1.5% TV distortion. Its compact 3.92mm total track length, F2.2 aperture, and M5 × 0.25 mount make it well suited to high-resolution embedded imaging and space-constrained machine vision applications.

M5 Miniature Low Distortion Lens Core Highlights

• 5MP High-Resolution Imaging: Supports detailed image capture for compact vision systems.
• <1.5% Low Distortion: Maintains controlled image geometry across the wide-angle field of view.
• 77° Diagonal FOV: Provides broad scene coverage from a compact 2.3mm focal length.
• Ultra-Compact 3.92mm T.T.L.: Fits space-constrained embedded camera architectures.
• M5 × 0.25 Miniature Mount: Designed for compact OEM camera and embedded vision modules.

2.3mm M5 Miniature Low Distortion Lens Applications

Core Application Scenes

This 2.3mm 5MP low distortion miniature lens is designed for compact imaging systems that require both high-resolution imaging and controlled geometric distortion. Its 77° diagonal field of view provides broad scene coverage, while the <1.5% TV distortion specification helps preserve the shape and position of objects across the image.

The combination of a 1/5″ sensor format and 5MP resolution makes this lens particularly suitable for compact inspection modules where image detail is important but the camera enclosure cannot accommodate a conventional industrial lens. The 65° horizontal field of view can cover a relatively broad inspection area without requiring an excessively long installation distance.

Its 3.92mm total track length and M5 × 0.25 mount are especially useful when developing miniature embedded cameras. These mechanical characteristics allow the optical assembly to be integrated into compact equipment, robotic mechanisms, electronic devices, and OEM imaging modules where installation space is limited.

The low-distortion optical design also makes the lens suitable for applications involving object positioning, visual measurement, pattern recognition, and image-based inspection. Compared with highly distorted wide-angle optics, controlled distortion can reduce the amount of geometric correction required during image processing.

Designed for high-resolution, low-distortion embedded machine vision and compact inspection applications.

Compatible Device List

• 1/5″ CMOS Camera Modules: Designed around 1/5″ image sensors requiring a compact 5MP optical solution.
• Embedded Machine Vision Cameras: Suitable for miniature inspection cameras where resolution and geometric accuracy are both important.
• Compact Industrial Inspection Modules: The 65° horizontal FOV can provide broad coverage while maintaining controlled image distortion.
• Robotics Vision Modules: The compact M5 mounting interface and short optical length support integration into space-constrained robotic vision assemblies.
• OEM Camera Systems: Suitable for customized camera modules requiring a small lens package with 5MP imaging capability.

When determining the required field of view for a camera installation, engineers can use the FOV Calculator to evaluate the relationship between sensor size, focal length, and viewing area.

For projects where lens selection depends on sensor format, resolution, working distance, and FOV, the Lens Selection Guide provides additional optical selection guidance.

Low Distortion Imaging Performance

The key optical characteristic of this lens is its TV distortion below 1.5%. This controlled distortion is particularly valuable in machine vision and inspection systems where the relative geometry of objects needs to remain consistent across the image.

A low-distortion wide-angle lens can reduce the visual bending of straight edges and minimize geometric deviation toward the image periphery. This can be beneficial for applications involving position detection, dimensional inspection, alignment, object recognition, and visual measurement.

Engineers evaluating how lens distortion affects image quality can also refer to the Distortion Guide for more information about optical distortion and its influence on imaging systems.

Compact Optical Architecture

With a 3.92mm T.T.L. and 0.72mm M.B.F.L., this lens is designed around a very compact optical architecture. The 3P optical structure provides a practical configuration for miniature camera modules while maintaining the required 5MP imaging performance.

The C.R.A. ≤35° and R.I. ≥33% specifications are also important considerations when integrating the lens with a selected image sensor and camera module. For a new OEM camera design, the optical and mechanical interface should be evaluated together with the selected sensor and housing.

For customized lens integration, mechanical adaptations, or application-specific optical requirements, engineers can contact the Towin Lens optical team.

Frequently Asked Questions

Q: What sensor size is this 2.3mm lens designed for?
A: This lens is designed for 1/5″ image sensors and supports up to 5MP resolution according to the specified product parameters.

Q: Is this a low distortion lens?
A: Yes. The lens has a specified TV distortion of less than 1.5%, making it suitable for applications where controlled image geometry is important.

Q: What is the field of view of this 5MP lens?
A: The lens provides a 77° diagonal FOV, 65° horizontal FOV, and 51° vertical FOV based on the specified image dimensions.

Q: Is this lens a fisheye lens?
A: No. Despite its wide 77° diagonal field of view, the lens is designed as a controlled low-distortion wide-angle lens, with TV distortion below 1.5%.

Q: What mount does the lens use?
A: The lens uses an M5 × 0.25 miniature mount, making it suitable for compact embedded camera and OEM imaging modules.

Q: What is the resolution of this lens?
A: The specified resolution is 5MP, making the lens suitable for higher-detail imaging compared with many conventional miniature camera lenses.

Q: How compact is this lens?
A: The total track length is only 3.92mm, with a 0.72mm back focal length, allowing integration into compact camera architectures.

Q: What applications can benefit from the low distortion performance?
A: The lens is suitable for compact machine vision, visual inspection, object positioning, pattern recognition, and embedded imaging applications where controlled geometric distortion is important.

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